amslatex now split into the original AMS names

git-svn-id: svn://tug.org/texlive/trunk@2309 c570f23f-e606-0410-a88d-b1316a301751

97 files changed, 0 insertions, 67648 deletions

diff --git a/Master/texmf-dist/bibtex/bib/amslatex/jr.bib b/Master/texmf-dist/bibtex/bib/amslatex/jr.bib
deleted file mode 100644
index fdfc83c5689..00000000000
--- a/Master/texmf-dist/bibtex/bib/amslatex/jr.bib
+++ /dev/null
@@ -1,214 +0,0 @@
-@article{BFMW,
-  author={J. Bryant and S. Ferry and W. Mio and S. Weinberger},
-  title={Topology of homology manifolds},
-  journal={Ann. of Math.},
-  volume={143},
-  pages={435--467},
-  year={1996},
-  review={\MR{97b:57017}},
-}
-
-@article{Ch,
-  author={T. A. Chapman},
-  title={Simple homotopy theory for {$ANR$}'s},
-  journal={General Topology and its Applications},
-  volume={7},
-  pages={165--174},
-  year={1977},
-  review={\MR{58:18414}},
-}
-
-@article{Co,
-  author={M. Cohen},
-  title={Simplicial structures and transverse cellularity},
-  journal={Ann. of Math.},
-  volume={85},
-  pages={218--245},
-  year={1967},
-  review={\MR{35:1037}},
-}
-
-@incollection{FP,
-  author={S. Ferry and E. K. Pedersen},
-  title={Epsilon surgery theory {I}},
-  booktitle={Novikov Conjectures, Index Theorems and Rigidity,
-             Vol. 2 ({O}berwolfach, 1993)},
-  series={Lond. Math. Soc. Lecture Note Ser.},
-  volume={227},
-  publisher={Cambridge University Press},
-  year={1995},
-  pages={167--226},
-  review={\MR{97g:57044}},
-}
-
-@article{HTW,
-  author={B. Hughes and L. Taylor and B. Williams},
-  title={Manifold approximate fibrations are approximately bundles},
-  journal={Forum Math.},
-  volume={3},
-  pages={309--325},
-  year={1991},
-  review={\MR{92k:57040}},
-}
-
-@article{Jo,
-  author={H. Johnston},
-  title={Transversality for homology manifolds},
-  journal={Topology},
-  volume={38},
-  pages={673--697},
-  year={1999},
-  review={\MR{99k:57048}},
-}
-
-@article{Jn,
-  author={L. Jones},
-  title={Patch spaces: a geometric representation for {P}oincar\'e
-         spaces},
-  journal={Ann. of Math.},
-  volume={97},
-  pages={306--343},
-  year={1973},
-  note={102, 183--185 (1975) \MR{47:4269}; \MR{52:11930}},
-}
-
-@book{KS,
-  author={R. Kirby and L. Siebenmann},
-  title={Foundational essays on topological manifolds, smoothings, and
-         triangulations},
-  series={Ann. of Math. Study},
-  volume={88},
-  publisher={Princeton University Press},
-  year={1977},
-  review={\MR{58:31082}},
-}
-
-@article{LR,
-  author={N. Levitt and A. Ranicki},
-  title={Intrinsic transversality structures},
-  journal={Pacific J. Math.},
-  volume={129},
-  pages={85--144},
-  year={1987},
-  review={\MR{88m:57027}},
-}
-
-@article{M,
-  author={A. Marin},
-  title={La transversalit\'e topologique},
-  language={French},
-  journal={Ann. of Math.},
-  volume={106},
-  pages={269--293},
-  year={1977},
-  review={\MR{57:10707}},
-}
-
-@article{Q1,
-  author={F. Quinn},
-  title={Resolutions of homology manifolds, and the topological
-         characterization of manifolds},
-  journal={Invent. Math.},
-  volume={72},
-  pages={264--284},
-  year={1983},
-  note={Corrigendum \textbf{85} (1986) 653},
-  review={\MR{85b:57023}, \MR{87g:57031}},
-}
-
-@article{Q2,
-  author={F. Quinn},
-  title={An obstruction to the resolution of homology manifolds},
-  journal={Michigan Math. J.},
-  volume={34},
-  pages={284--291},
-  year={1987},
-  review={\MR{88j:57016}},
-}
-
-@article{Q3,
-  author={F. Quinn},
-  title={Topological transversality holds in all dimensions},
-  journal={Bull. Amer. Math. Soc.},
-  volume={18},
-  pages={145--148},
-  year={1988},
-  review={\MR{89c:57016}},
-}
-
-@article{R1,
-  author={A. Ranicki},
-  title={The algebraic theory of surgery {II}. {A}pplications to topology},
-  journal={Proc. Lond. Math. Soc.},
-  volume={40},
-  pages={193--287},
-  year={1980},
-  review={\MR{82f:57024b}},
-}
-
-@book{R2,
-  author={A. Ranicki},
-  title={Exact sequences in the algebraic theory of surgery},
-  series={Mathematical Notes},
-  volume={26},
-  publisher={Princeton University Press},
-  year={1981},
-  review={\MR{82h:57027}},
-}
-
-@book{R3,
-  author={A. Ranicki},
-  title={Algebraic {$L$}--theory and topological manifolds},
-  series={Cambridge Tracts in Mathematics},
-  volume={102},
-  publisher={Cambridge University Press},
-  year={1992},
-  review={\MR{94i:57051}},
-}
-
-@article{RS,
-  author={C. P. Rourke and B. J. Sanderson},
-  title={On topological neighbourhoods},
-  journal={Compositio Math.},
-  volume={22},
-  pages={387--425},
-  year={1970},
-  review={\MR{45:7720}},
-}
-
-@book{Wa,
-  author={C. T. C. Wall},
-  title={Surgery on compact manifolds},
-  edition={2},
-  publisher={Academic Press},
-  year={1970},
-}
-
-@book{Wei,
-  author={S. Weinberger},
-  title={Nonlocally linear manifolds and orbifolds},
-  series={Proc. 1994 Z\"urich ICM},
-  pages={637--647},
-  publisher={Birkh\"auser},
-  year={1995},
-  review={\MR{97g:57028}},
-}
-
-@book{Wein,
-  author={S. Weinberger},
-  title={The topological classification of stratified spaces},
-  series={Chicago Lectures in Mathematics},
-  publisher={University of Chicago Press},
-  year={1994},
-  review={\MR{96b:57024}},
-}
-
-@article{Wes,
-  author={J. West},
-  title={Mapping {H}ilbert cube manifolds to {$ANR$}'s},
-  journal={Ann. of Math.},
-  volume={106},
-  pages={1--18},
-  year={1977},
-  review={\MR{56:9534}},
-}
diff --git a/Master/texmf-dist/bibtex/bst/amslatex/amsalpha.bst b/Master/texmf-dist/bibtex/bst/amslatex/amsalpha.bst
deleted file mode 100644
index af9f6b43876..00000000000
--- a/Master/texmf-dist/bibtex/bst/amslatex/amsalpha.bst
+++ /dev/null
@@ -1,1404 +0,0 @@
-%%% ====================================================================
-%%%  @BibTeX-style-file{
-%%%     filename        = "amsalpha.bst",
-%%%     version         = "2.0",
-%%%     date            = "2000/03/27",
-%%%     time            = "13:49:36 EST",
-%%%     checksum        = "00166 1404 4124 29978",
-%%%     author          = "American Mathematical Society",
-%%%     address         = "American Mathematical Society,
-%%%                        Technical Support,
-%%%                        Electronic Products and Services,
-%%%                        P. O. Box 6248,
-%%%                        Providence, RI 02940,
-%%%                        USA",
-%%%     telephone       = "401-455-4080 or (in the USA and Canada)
-%%%                        800-321-4AMS (321-4267)",
-%%%     FAX             = "401-331-3842",
-%%%     email           = "tech-support@ams.org (Internet)",
-%%%     copyright       = "Copyright 1995 American Mathematical Society,
-%%%                        all rights reserved.  Copying of this file is
-%%%                        authorized only if either:
-%%%                        (1) you make absolutely no changes to your copy,
-%%%                        including name; OR
-%%%                        (2) if you do make changes, you first rename it
-%%%                        to some other name.",
-%%%     codetable       = "ISO/ASCII",
-%%%     keywords        = "bibtex, bibliography, amslatex, ams-latex",
-%%%     supported       = "yes",
-%%%     abstract        = "BibTeX bibliography style `amsalpha' for BibTeX
-%%%                        versions 0.99a or later and LaTeX version 2e.
-%%%                        Produces alphabetic-label bibliography items in
-%%%                        a form typical for American Mathematical Society
-%%%                        publications.",
-%%%     docstring       = "The checksum field above contains a CRC-16
-%%%                        checksum as the first value, followed by the
-%%%                        equivalent of the standard UNIX wc (word
-%%%                        count) utility output of lines, words, and
-%%%                        characters.  This is produced by Robert
-%%%                        Solovay's checksum utility.",
-%%%  }
-%%% ====================================================================
-
-% See the file btxbst.doc for extra documentation other than
-% what is included here.  And see btxhak.tex for a description
-% of the BibTeX language and how to use it.
-
-% This defines the types of fields that can occur in a database entry
-% for this particular bibliography style.  Except for `language',
-% this is the standard list from alpha.bst.
-
-%% Types of entries currently allowed in a BibTeX file:
-%%
-%% ARTICLE -- An article from a journal or magazine.
-%%
-%% BOOK -- A book with an explicit publisher.
-%%
-%% BOOKLET -- A work that is printed and bound,
-%% but without a named publisher or sponsoring institution.
-%%
-%% CONFERENCE -- The same as INPROCEEDINGS,
-%% included for Scribe compatibility.
-%%
-%% INBOOK -- A part of a book,
-%% which may be a chapter (or section or whatever) and/or a range of pages.
-%%
-%% INCOLLECTION -- A part of a book having its own title.
-%%
-%% INPROCEEDINGS -- An article in a conference proceedings.
-%%
-%% MANUAL -- Technical documentation.
-%%
-%% MASTERSTHESIS -- A Master's thesis.
-%%
-%% MISC -- Use this type when nothing else fits.
-%%
-%% PHDTHESIS -- A PhD thesis.
-%%
-%% PROCEEDINGS -- The proceedings of a conference.
-%%
-%% TECHREPORT -- A report published by a school or other institution,
-%% usually numbered within a series.
-%%
-%% UNPUBLISHED -- A document having an author and title, but not formally
-%% published.
-
-ENTRY
-  { address
-    author
-    booktitle
-    chapter
-    edition
-    editor
-    howpublished
-    institution
-    journal
-    key
-    language
-    month
-    mrnumber
-    note
-    number
-    organization
-    pages
-    publisher
-    school
-    series
-    title
-    type
-    volume
-    year
-  }
-  {}
-  { label extra.label sort.label bysame }
-
-% Removed after.sentence, after.block---not needed.
-
-INTEGERS { output.state before.all mid.sentence }
-
-FUNCTION {init.state.consts}
-{ #0 'before.all :=
-  #1 'mid.sentence :=
-}
-
-% Scratch variables:
-
-STRINGS { s t }
-
-% Utility functions
-
-FUNCTION {shows}
-{ duplicate$ "::::  `" swap$ * "'" * top$
-}
-
-FUNCTION {showstack}
-{"STACK====================================================================="
-top$
-stack$
-"ENDSTACK=================================================================="
-top$
-}
-
-FUNCTION {not}
-{   { #0 }
-    { #1 }
-  if$
-}
-
-FUNCTION {and}
-{   'skip$
-    { pop$ #0 }
-  if$
-}
-
-FUNCTION {or}
-{   { pop$ #1 }
-    'skip$
-  if$
-}
-
-FUNCTION {field.or.null}
-{ duplicate$ empty$
-    { pop$ "" }
-    'skip$
-  if$
-}
-
-FUNCTION {emphasize}
-{ duplicate$ empty$
-    { pop$ "" }
-    { "\emph{" swap$ * "}" * }
-  if$
-}
-
-% n.dashify is used to make sure page ranges get the TeX code
-% (two hyphens) for en-dashes.
-
-FUNCTION {n.dashify}
-{ 't :=
-  ""
-    { t empty$ not }
-    { t #1 #1 substring$ "-" =
-	{ t #1 #2 substring$ "--" = not
-	    { "--" *
-	      t #2 global.max$ substring$ 't :=
-	    }
-	    {   { t #1 #1 substring$ "-" = }
-		{ "-" *
-		  t #2 global.max$ substring$ 't :=
-		}
-	      while$
-	    }
-	  if$
-	}
-	{ t #1 #1 substring$ *
-	  t #2 global.max$ substring$ 't :=
-	}
-      if$
-    }
-  while$
-}
-
-% tie.or.space.connect connects two items with a ~ if the
-% second item is less than 3 letters long, otherwise it just puts an
-% ordinary space.
-
-FUNCTION {tie.or.space.connect}
-{ duplicate$ text.length$ #3 <
-    { "~" }
-    { " " }
-  if$
-  swap$ * *
-}
-
-FUNCTION {add.space.if.necessary}
-{ duplicate$ "" =
-    'skip$
-    { " " * }
-  if$
-}
-
-% either.or.check gives a warning if two mutually exclusive fields
-% were used in the database.
-
-FUNCTION {either.or.check}
-{ empty$
-    'pop$
-    { "can't use both " swap$ * " fields in " * cite$ * warning$ }
-  if$
-}
-
-% output.nonnull is called by output.
-
-FUNCTION {output.nonnull}
-% remove the top item from the stack because it's in the way.
-{ 's :=
-  output.state mid.sentence =
-% If we're in mid-sentence, add a comma to the new top item and write it
-    { ", " * write$ }
-% Otherwise, if we're at the beginning of a bibitem,
-    { output.state before.all =
-% just write out the top item from the stack;
-      'write$
-% and the last alternative is that we're at the end of the current
-% bibitem, so we add a period to the top stack item and write it out.
-        { add.period$ " " * write$ }
-      if$
-      mid.sentence 'output.state :=
-    }
-  if$
-% Put the top item back on the stack that we removed earlier.
-  s
-}
-
-% Output checks to see if the stack top is empty; if not, it
-% calls output.nonnull to write it out.
-
-FUNCTION {output}
-{ duplicate$ empty$
-    'pop$
-    'output.nonnull
-  if$
-}
-
-% Standard warning message for a missing or empty field. For the user
-% we call any such field `missing' without respect to the distinction
-% made by BibTeX between missing and empty.
-
-FUNCTION {missing.warning}
-{ "missing " swap$ * " in " * cite$ * warning$ }
-
-% Output.check is like output except that it gives a warning on-screen
-% if the given field in the database entry is empty.  t is the field
-% name.
-
-FUNCTION {output.check}
-{ 't :=
-  duplicate$ empty$
-    { pop$ t missing.warning }
-    'output.nonnull
-  if$
-}
-
-FUNCTION {output.bibitem}
-{ newline$
-  "\bibitem[" write$
-  label write$
-  "]{" write$
-  cite$ write$
-  "}" write$
-  newline$
-% This empty string is the first thing that will be written
-% the next time write$ is called.  Done this way because each
-% item is saved on the stack until we find out what punctuation
-% should be added after it.  Therefore we need an empty first item.
-  ""
-  before.all 'output.state :=
-}
-
-FUNCTION {output.nonempty.mrnumber}
-{ duplicate$ missing$
-    { pop$ "" }
-    'skip$
-  if$
-  duplicate$ empty$
-    'pop$
-    { " \MR{" swap$ * "}" * write$ }
-  if$
-}
-
-FUNCTION {fin.entry}
-{ add.period$
-  write$
-  mrnumber output.nonempty.mrnumber
-  newline$
-}
-
-% Removed new.block, new.block.checka, new.block.checkb, new.sentence,
-% new.sentence.checka, and new.sentence.checkb functions here, since they
-% don't seem to be needed in the AMS style.  Also moved some real
-% basic functions like `and' and 'or' earlier in the file.
-
-INTEGERS { nameptr namesleft numnames }
-
-% The extra section to write out a language field was added
-% for AMSPLAIN.BST.  Not present in plain.bst.
-
-FUNCTION {format.language}
-{ language empty$
-    { "" }
-    { " (" language * ")" * }
-  if$
-}
-
-% This version of format.names puts names in the format
-%
-% First von Last, Jr.
-%
-% (i.e., first name first, no abbreviating to initials).
-
-FUNCTION {format.names}
-{ 's :=
-  #1 'nameptr :=
-  s num.names$ 'numnames :=
-  numnames 'namesleft :=
-    { namesleft #0 > }
-    { s nameptr "{ff~}{vv~}{ll}{, jj}" format.name$ 't :=
-      nameptr #1 >
-	{ namesleft #1 >
-	    { ", " * t * }
-	    { numnames #2 >
-		{ "," * }
-		'skip$
-	      if$
-	      t "others" =
-		{ " et~al." * }
-		{ " and " * t * }
-	      if$
-	    }
-	  if$
-	}
-	't
-      if$
-      nameptr #1 + 'nameptr :=
-      namesleft #1 - 'namesleft :=
-    }
-  while$
-}
-
-FUNCTION {format.authors}
-{ author empty$
-    { "" }
-    { bysame "\bysame" =
-         { bysame }
-         { author format.names }
-     if$
-    }
-  if$
-}
-
-FUNCTION {format.editors}
-{ editor empty$
-    { "" }
-    { editor format.names
-      editor num.names$ #1 >
-	{ " (eds.)" * }
-	{ " (ed.)" * }
-      if$
-    }
-  if$
-}
-
-FUNCTION {format.nonauthor.editors}
-{ editor empty$
-    { "" }
-    { editor format.names
-      editor num.names$ #1 >
-	{ ", eds." * }
-	{ ", ed." * }
-      if$
-    }
-  if$
-}
-
-FUNCTION {format.title}
-{ title empty$
-    { "" }
-    { title "t" change.case$ emphasize }
-  if$
-}
-
-FUNCTION {format.journal.vol.year}
-{ journal empty$
-    { "" "journal name" missing.warning }
-    { journal
-      volume empty$
-        'skip$
-        { " \textbf{" * volume * "}" * }
-      if$
-      year empty$
-        { "year" missing.warning }
-        { " (" * year * ")" * }
-      if$
-    }
-  if$
-}
-
-% For formatting the issue number for a journal article.
-
-FUNCTION {format.number}
-{ number empty$
-    { "" }
-    { "no.~" number * }
-  if$
-}
-
-% For formatting miscellaneous dates
-
-FUNCTION {format.date}
-{ year empty$
-    { month empty$
-	{ "" }
-	{ "there's a month but no year in " cite$ * warning$
-	  month
-	}
-      if$
-    }
-    { month empty$
-	'year
-	{ month " " * year * }
-      if$
-    }
-  if$
-}
-
-%%      The volume, series and number information is sort of tricky.
-%%      This code handles it as follows:
-%%      If the series is present, and the volume, but not the number,
-%%        then we do "\emph{Book title}, Series Name, vol. 000"
-%%      If the series is present, and the number, but not the volume,
-%%        then we do "\emph{Book title}, Series Name, no. 000"
-%%      If the series is present, and both number and volume,
-%%        then we do "\emph{Book title}, vol. XX, Series Name, no. 000"
-%%      Finally, if the series is absent,
-%%        then we do "\emph{Book title}, vol. XX"
-%%        or         "\emph{Book title}, no. 000"
-%%        and if both volume and number are present, give a warning message.
-
-FUNCTION {format.bookvolume.series.number}
-{ volume empty$
-    { "" % Push the empty string as a placeholder in case everything else
-         % is empty too.
-      series empty$
-        'skip$
-        { pop$ series } % if series is not empty put in stack
-      if$
-      number empty$
-        'skip$
-        { duplicate$ empty$ % if no preceding material,
-            'skip$          % do nothing, otherwise
-            { ", " * }      % add a comma and space to separate.
-          if$
-          "no." number tie.or.space.connect * % add the number information
-        }
-      if$
-    }
-%% If the volume is NOT EMPTY:
-    { "vol." volume tie.or.space.connect % vol. XX
-      number empty$
-        { series empty$
-            'skip$
-            { series ", " * swap$ *}    % Series Name, vol. XX
-          if$
-        }
-        { series empty$
-            { "can't use both volume and number if series info is missing"
-              warning$
-              "in BibTeX entry type `" type$ * "'" * top$
-            }
-            { ", " * series * ", no." * number tie.or.space.connect }
-          if$
-        }
-      if$
-    }
-  if$
-
-}  % end of format.bookvolume.series.number
-
-%% format.inproc.title.where.editors is used by inproceedings entry types
-
-%%      No case changing or emphasizing for the title.  We want initial
-%%      caps, roman.
-%%      We add parentheses around the address (place where conference
-%%      was held).
-%%      Likewise we add parentheses around the editors' names.
-
-FUNCTION {format.inproc.title.address.editors}
-{ booktitle empty$
-    { "" }
-    { booktitle
-      address empty$
-        'skip$
-        { add.space.if.necessary "(" * address * ")" * }
-      if$
-      editor empty$
-        'skip$
-        { add.space.if.necessary "(" * format.nonauthor.editors * ")" * }
-      if$
-    }
-  if$
-}
-
-%% format.incoll.title.editors is similar to format.inproc... but
-%% omits the address. For collections that are not proceedings volumes.
-
-FUNCTION {format.incoll.title.editors}
-{ booktitle empty$
-    { "" }
-    { editor empty$
-        { booktitle }
-        { booktitle
-          add.space.if.necessary "(" * format.nonauthor.editors * ")" *
-        }
-      if$
-    }
-  if$
-}
-
-FUNCTION {format.edition}
-{ edition empty$
-    { "" }
-    { output.state mid.sentence =
-	{ edition "l" change.case$ " ed." * }
-	{ edition "t" change.case$ " ed." * }
-      if$
-    }
-  if$
-}
-
-INTEGERS { multiresult }
-
-FUNCTION {multi.page.check}
-{ 't :=
-  #0 'multiresult :=
-    { multiresult not
-      t empty$ not
-      and
-    }
-    { t #1 #1 substring$
-      duplicate$ "-" =
-      swap$ duplicate$ "," =
-      swap$ "+" =
-      or or
-	{ #1 'multiresult := }
-	{ t #2 global.max$ substring$ 't := }
-      if$
-    }
-  while$
-  multiresult
-}
-
-FUNCTION {format.pages}
-{ pages empty$
-    { "" }
-    { pages n.dashify }
-  if$
-}
-
-FUNCTION {format.book.pages}
-{ pages empty$
-    { "" }
-    { pages multi.page.check
-	{ "pp.~" pages n.dashify * }
-	{ "p.~" pages * }
-      if$
-    }
-  if$
-}
-
-FUNCTION {format.chapter.pages}
-{ chapter empty$
-    'format.book.pages
-    { type empty$
-	{ "ch.~" }
-	{ type "l" change.case$ " " * }
-      if$
-      chapter *
-      pages empty$
-	'skip$
-	{ ", " * format.book.pages * }
-      if$
-    }
-  if$
-}
-
-FUNCTION {empty.misc.check}
-{ author empty$ title empty$ howpublished empty$
-  month empty$ year empty$ note empty$
-  and and and and and
-  key empty$ not and
-    { "all relevant fields are empty in " cite$ * warning$ }
-    'skip$
-  if$
-}
-
-FUNCTION {format.thesis.type}
-{ type empty$
-    'skip$
-    { pop$
-      type "t" change.case$
-    }
-  if$
-}
-
-FUNCTION {format.tr.number}
-{ type empty$
-    { "Tech. Report" }
-    'type
-  if$
-  number empty$
-    { "t" change.case$ }
-    { number tie.or.space.connect }
-  if$
-}
-
-% The format.crossref functions haven't been paid much attention
-% at the present time (June 1990) and could probably use some
-% work.  MJD
-
-FUNCTION {format.article.crossref}
-{ key empty$
-    { journal empty$
-	{ "need key or journal for " cite$ * " to crossref " * crossref *
-	  warning$
-	  ""
-	}
-	{ "in " journal * }
-      if$
-    }
-    { "in " key * }
-  if$
-  " \cite{" * crossref * "}" *
-}
-
-FUNCTION {format.crossref.editor}
-{ editor #1 "{vv~}{ll}" format.name$
-  editor num.names$ duplicate$
-  #2 >
-    { pop$ " et~al." * }
-    { #2 <
-	'skip$
-	{ editor #2 "{ff }{vv }{ll}{ jj}" format.name$ "others" =
-	    { " et~al." * }
-	    { " and " * editor #2 "{vv~}{ll}" format.name$ * }
-	  if$
-	}
-      if$
-    }
-  if$
-}
-
-FUNCTION {format.book.crossref}
-{ volume empty$
-    { "empty volume in " cite$ * "'s crossref of " * crossref * warning$
-      "in "
-    }
-    { "vol." volume tie.or.space.connect
-      " of " *
-    }
-  if$
-  editor empty$
-  editor field.or.null author field.or.null =
-  or
-    { key empty$
-	{ series empty$
-	    { "need editor, key, or series for " cite$ * " to crossref " *
-	      crossref * warning$
-	      "" *
-	    }
-	    { series * }
-	  if$
-	}
-	{ key * }
-      if$
-    }
-    { format.crossref.editor * }
-  if$
-  " \cite{" * crossref * "}" *
-}
-
-FUNCTION {format.incoll.inproc.crossref}
-{ editor empty$
-  editor field.or.null author field.or.null =
-  or
-    { key empty$
-	{ booktitle empty$
-	    { "need editor, key, or booktitle for " cite$ * " to crossref " *
-	      crossref * warning$
-	      ""
-	    }
-	    { "in \emph{" booktitle * "}" * }
-	  if$
-	}
-	{ "in " key * }
-      if$
-    }
-    { "in " format.crossref.editor * }
-  if$
-  " \cite{" * crossref * "}" *
-}
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-% The main functions for each entry type.
-
-% journal, vol and year are formatted together because they are
-% not separated by commas.
-
-FUNCTION {article}
-{ output.bibitem
-  format.authors "author" output.check
-  format.title "title" output.check
-  crossref missing$
-    { format.journal.vol.year "journal, volume, and year" output.check
-      format.number output
-      format.pages "pages" output.check
-    }
-    { format.article.crossref output.nonnull
-      format.pages "pages" output.check
-    }
-  if$
-  format.language *
-  note output
-  fin.entry
-}
-
-FUNCTION {book}
-{ output.bibitem
-  author empty$
-    { format.editors "author and editor" output.check }
-    { format.authors output.nonnull
-      crossref missing$
-	{ "author and editor" editor either.or.check }
-	'skip$
-      if$
-    }
-  if$
-  format.title "title" output.check
-  format.edition output
-  crossref missing$
-    { format.bookvolume.series.number output
-      publisher "publisher" output.check
-      address output
-    }
-    { format.book.crossref output.nonnull
-    }
-  if$
-  format.date "year" output.check
-  format.language *
-  note output
-  fin.entry
-}
-
-FUNCTION {booklet}
-{ output.bibitem
-  format.authors output
-  format.title "title" output.check
-  howpublished output
-  address output
-  format.date output
-  note output
-  fin.entry
-}
-
-FUNCTION {inbook}
-{ output.bibitem
-  author empty$
-    { format.editors "author and editor" output.check }
-    { format.authors output.nonnull
-      crossref missing$
-	{ "author and editor" editor either.or.check }
-	'skip$
-      if$
-    }
-  if$
-  format.title "title" output.check
-  format.edition output
-  crossref missing$
-    { format.bookvolume.series.number output
-      format.chapter.pages "chapter and pages" output.check
-      publisher "publisher" output.check
-      address output
-    }
-    { format.chapter.pages "chapter and pages" output.check
-      format.book.crossref output.nonnull
-    }
-  if$
-  format.date "year" output.check
-  format.language *
-  note output
-  fin.entry
-}
-
-FUNCTION {incollection}
-{ output.bibitem
-  format.authors "author" output.check
-  format.title "title" output.check
-  crossref missing$
-    { format.incoll.title.editors "booktitle" output.check
-      format.bookvolume.series.number output
-      publisher "publisher" output.check
-      address output
-      format.edition output
-      format.date "year" output.check
-    }
-    { format.incoll.inproc.crossref output.nonnull
-    }
-  if$
-  note output
-  format.book.pages output
-  format.language *
-  fin.entry
-}
-
-FUNCTION {inproceedings}
-{ output.bibitem
-  format.authors "author" output.check
-  format.title "title" output.check
-  crossref missing$
-    { format.inproc.title.address.editors "booktitle" output.check
-      format.bookvolume.series.number output
-      organization output
-      publisher output
-      format.date "year" output.check
-    }
-    { format.incoll.inproc.crossref output.nonnull
-    }
-  if$
-  note output
-  format.book.pages output
-  format.language *
-  fin.entry
-}
-
-FUNCTION {conference} { inproceedings }
-
-FUNCTION {manual}
-{ output.bibitem
-  author empty$
-    { organization empty$
-	'skip$
-	{ organization output.nonnull
-	  address output
-	}
-      if$
-    }
-    { format.authors output.nonnull }
-  if$
-  format.title "title" output.check
-  author empty$
-    { organization empty$
-	{ address output }
-	'skip$
-      if$
-    }
-    { organization output
-      address output
-    }
-  if$
-  format.edition output
-  format.date output
-  note output
-  fin.entry
-}
-
-FUNCTION {mastersthesis}
-{ output.bibitem
-  format.authors "author" output.check
-  format.title "title" output.check
-  "Master's thesis" format.thesis.type output.nonnull
-  school "school" output.check
-  address output
-  format.date "year" output.check
-  note output
-  format.book.pages output
-  fin.entry
-}
-
-FUNCTION {misc}
-{ output.bibitem
-  format.authors output
-  format.title output
-  howpublished output
-  format.date output
-  note output
-  format.book.pages output
-  fin.entry
-  empty.misc.check
-}
-
-FUNCTION {phdthesis}
-{ output.bibitem
-  format.authors "author" output.check
-  format.title "title" output.check
-  "Ph.D. thesis" format.thesis.type output.nonnull
-  school "school" output.check
-  address output
-  format.date "year" output.check
-  note output
-  format.book.pages output
-  fin.entry
-}
-
-FUNCTION {proceedings}
-{ output.bibitem
-  editor empty$
-    { organization output }
-    { format.editors output.nonnull }
-  if$
-  format.title "title" output.check
-  format.bookvolume.series.number output
-  address empty$
-    { editor empty$
-        'skip$
-	{ organization output }
-      if$
-      publisher output
-      format.date "year" output.check
-    }
-    { address output.nonnull
-      editor empty$
-	'skip$
-	{ organization output }
-      if$
-      publisher output
-      format.date "year" output.check
-    }
-  if$
-  note output
-  fin.entry
-}
-
-FUNCTION {techreport}
-{ output.bibitem
-  format.authors "author" output.check
-  format.title "title" output.check
-  format.tr.number output.nonnull
-  institution "institution" output.check
-  address output
-  format.date "year" output.check
-  note output
-  fin.entry
-}
-
-FUNCTION {unpublished}
-{ output.bibitem
-  format.authors "author" output.check
-  format.title "title" output.check
-  note "note" output.check
-  format.date output
-  fin.entry
-}
-
-FUNCTION {default.type} { misc }
-
-MACRO {jan} {"January"}
-
-MACRO {feb} {"February"}
-
-MACRO {mar} {"March"}
-
-MACRO {apr} {"April"}
-
-MACRO {may} {"May"}
-
-MACRO {jun} {"June"}
-
-MACRO {jul} {"July"}
-
-MACRO {aug} {"August"}
-
-MACRO {sep} {"September"}
-
-MACRO {oct} {"October"}
-
-MACRO {nov} {"November"}
-
-MACRO {dec} {"December"}
-
-READ
-
-FUNCTION {sortify}
-{ purify$
-  "l" change.case$
-}
-
-INTEGERS { len }
-
-FUNCTION {chop.word}
-{ 's :=
-  'len :=
-  s #1 len substring$ =
-    { s len #1 + global.max$ substring$ }
-    's
-  if$
-}
-
-INTEGERS { et.al.char.used }
-
-FUNCTION {initialize.et.al.char.used}
-{ #0 'et.al.char.used :=
-}
-
-EXECUTE {initialize.et.al.char.used}
-
-FUNCTION {format.lab.names}
-{ 's :=
-  s num.names$ 'numnames :=
-  numnames #1 >
-    { numnames #4 >
-	{ #3 'namesleft := }
-	{ numnames 'namesleft := }
-      if$
-      #1 'nameptr :=
-      ""
-	{ namesleft #0 > }
-	{ nameptr numnames =
-	    { s nameptr "{ff }{vv }{ll}{ jj}" format.name$ "others" =
-		{ "{\etalchar{+}}" *
-		  #1 'et.al.char.used :=
-		}
-		{ s nameptr "{v{}}{l{}}" format.name$ * }
-	      if$
-	    }
-	    { s nameptr "{v{}}{l{}}" format.name$ * }
-	  if$
-	  nameptr #1 + 'nameptr :=
-	  namesleft #1 - 'namesleft :=
-	}
-      while$
-      numnames #4 >
-	{ "{\etalchar{+}}" *
-	  #1 'et.al.char.used :=
-	}
-	'skip$
-      if$
-    }
-    { s #1 "{v{}}{l{}}" format.name$
-      duplicate$ text.length$ #2 <
-	{ pop$ s #1 "{ll}" format.name$ #3 text.prefix$ }
-	'skip$
-      if$
-    }
-  if$
-}
-
-FUNCTION {author.key.label}
-{ author empty$
-    { key empty$
-	{ cite$ #1 #3 substring$ }
-	{ key #3 text.prefix$ }
-      if$
-    }
-    { author format.lab.names }
-  if$
-}
-
-FUNCTION {author.editor.key.label}
-{ author empty$
-    { editor empty$
-	{ key empty$
-	    { cite$ #1 #3 substring$ }
-	    { key #3 text.prefix$ }
-	  if$
-	}
-	{ editor format.lab.names }
-      if$
-    }
-    { author format.lab.names }
-  if$
-}
-
-FUNCTION {author.key.organization.label}
-{ author empty$
-    { key empty$
-	{ organization empty$
-	    { cite$ #1 #3 substring$ }
-	    { "The " #4 organization chop.word #3 text.prefix$ }
-	  if$
-	}
-	{ key #3 text.prefix$ }
-      if$
-    }
-    { author format.lab.names }
-  if$
-}
-
-FUNCTION {editor.key.organization.label}
-{ editor empty$
-    { key empty$
-	{ organization empty$
-	    { cite$ #1 #3 substring$ }
-	    { "The " #4 organization chop.word #3 text.prefix$ }
-	  if$
-	}
-	{ key #3 text.prefix$ }
-      if$
-    }
-    { editor format.lab.names }
-  if$
-}
-
-FUNCTION {calc.label}
-{ type$ "book" =
-  type$ "inbook" =
-  or
-    'author.editor.key.label
-    { type$ "proceedings" =
-	'editor.key.organization.label
-	{ type$ "manual" =
-	    'author.key.organization.label
-	    'author.key.label
-	  if$
-	}
-      if$
-    }
-  if$
-  duplicate$
-  year field.or.null purify$ #-1 #2 substring$
-  *
-  'label :=
-  year field.or.null purify$ #-1 #4 substring$
-  *
-  sortify 'sort.label :=
-}
-
-FUNCTION {sort.format.names}
-{ 's :=
-  #1 'nameptr :=
-  ""
-  s num.names$ 'numnames :=
-  numnames 'namesleft :=
-    { namesleft #0 > }
-    { nameptr #1 >
-	{ "   " * }
-	'skip$
-      if$
-      s nameptr "{vv{ } }{ll{ }}{  ff{ }}{  jj{ }}" format.name$ 't :=
-      nameptr numnames = t "others" = and
-	{ "et al" * }
-	{ t sortify * }
-      if$
-      nameptr #1 + 'nameptr :=
-      namesleft #1 - 'namesleft :=
-    }
-  while$
-}
-
-FUNCTION {sort.format.title}
-{ 't :=
-  "A " #2
-    "An " #3
-      "The " #4 t chop.word
-    chop.word
-  chop.word
-  sortify
-  #1 global.max$ substring$
-}
-
-FUNCTION {author.sort}
-{ author empty$
-    { key empty$
-	{ "to sort, need author or key in " cite$ * warning$
-	  ""
-	}
-	{ key sortify }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-
-FUNCTION {author.editor.sort}
-{ author empty$
-    { editor empty$
-	{ key empty$
-	    { "to sort, need author, editor, or key in " cite$ * warning$
-	      ""
-	    }
-	    { key sortify }
-	  if$
-	}
-	{ editor sort.format.names }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-
-FUNCTION {author.organization.sort}
-{ author empty$
-    { organization empty$
-	{ key empty$
-	    { "to sort, need author, organization, or key in " cite$ * warning$
-	      ""
-	    }
-	    { key sortify }
-	  if$
-	}
-	{ "The " #4 organization chop.word sortify }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-
-FUNCTION {editor.organization.sort}
-{ editor empty$
-    { organization empty$
-	{ key empty$
-	    { "to sort, need editor, organization, or key in " cite$ * warning$
-	      ""
-	    }
-	    { key sortify }
-	  if$
-	}
-	{ "The " #4 organization chop.word sortify }
-      if$
-    }
-    { editor sort.format.names }
-  if$
-}
-
-FUNCTION {presort}
-{ calc.label
-  sort.label
-  "    "
-  *
-  type$ "book" =
-  type$ "inbook" =
-  or
-    'author.editor.sort
-    { type$ "proceedings" =
-	'editor.organization.sort
-	{ type$ "manual" =
-	    'author.organization.sort
-	    'author.sort
-	  if$
-	}
-      if$
-    }
-  if$
-  *
-  "    "
-  *
-  year field.or.null sortify
-  *
-  "    "
-  *
-  title field.or.null
-  sort.format.title
-  *
-  #1 entry.max$ substring$
-  'sort.key$ :=
-}
-
-ITERATE {presort}
-
-SORT
-
-STRINGS {
-  longest.label last.sort.label next.extra prev.author this.author
-}
-
-INTEGERS { longest.label.width last.extra.num }
-
-FUNCTION {initialize.longest.label}
-{ "" 'longest.label :=
-  #0 int.to.chr$ 'last.sort.label :=
-  "" 'next.extra :=
-  #0 'longest.label.width :=
-  #0 'last.extra.num :=
-  "abcxyz" 'prev.author :=
-  "" 'this.author :=
-}
-
-FUNCTION {forward.pass}
-{ last.sort.label sort.label =
-    { last.extra.num #1 + 'last.extra.num :=
-      last.extra.num int.to.chr$ 'extra.label :=
-    }
-    { "a" chr.to.int$ 'last.extra.num :=
-      "" 'extra.label :=
-      sort.label 'last.sort.label :=
-    }
-  if$
-  author empty$ { editor empty$ { "" } 'editor if$ } 'author if$
-  'this.author :=
-  this.author prev.author =
-    { "\bysame" 'bysame := }
-    { "" 'bysame :=
-      this.author "" =
-        { "abcxyz" }
-        'this.author
-      if$
-      'prev.author :=
-    }
-  if$
-}
-
-FUNCTION {reverse.pass}
-{ next.extra "b" =
-    { "a" 'extra.label := }
-    'skip$
-  if$
-  label extra.label * 'label :=
-  label width$ longest.label.width >
-    { label 'longest.label :=
-      label width$ 'longest.label.width :=
-    }
-    'skip$
-  if$
-  extra.label 'next.extra :=
-}
-
-EXECUTE {initialize.longest.label}
-
-ITERATE {forward.pass}
-
-REVERSE {reverse.pass}
-
-FUNCTION {begin.bib}
-{ et.al.char.used
-    { "\newcommand{\etalchar}[1]{$^{#1}$}" write$ newline$ }
-    'skip$
-  if$
-  preamble$ empty$
-    'skip$
-    { preamble$ write$ newline$ }
-  if$
-  "\providecommand{\bysame}{\leavevmode\hbox to3em{\hrulefill}\thinspace}"
-    write$ newline$
-  "\providecommand{\MR}{\relax\ifhmode\unskip\space\fi MR }"
-    write$ newline$
-  "% \MRhref is called by the amsart/book/proc definition of \MR."
-    write$ newline$
-  "\providecommand{\MRhref}[2]{%"
-    write$ newline$
-  "  \href{http://www.ams.org/mathscinet-getitem?mr=#1}{#2}"
-    write$ newline$
-  "}"
-    write$ newline$
-  "\providecommand{\href}[2]{#2}"
-    write$ newline$
-  "\begin{thebibliography}{"  longest.label  * "}" *
-    write$ newline$
-}
-
-EXECUTE {begin.bib}
-
-EXECUTE {init.state.consts}
-
-ITERATE {call.type$}
-
-FUNCTION {end.bib}
-{ newline$
-  "\end{thebibliography}" write$ newline$
-}
-
-EXECUTE {end.bib}
-%% \CharacterTable
-%%  {Upper-case    \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
-%%   Lower-case    \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
-%%   Digits        \0\1\2\3\4\5\6\7\8\9
-%%   Exclamation   \!     Double quote  \"     Hash (number) \#
-%%   Dollar        \$     Percent       \%     Ampersand     \&
-%%   Acute accent  \'     Left paren    \(     Right paren   \)
-%%   Asterisk      \*     Plus          \+     Comma         \,
-%%   Minus         \-     Point         \.     Solidus       \/
-%%   Colon         \:     Semicolon     \;     Less than     \<
-%%   Equals        \=     Greater than  \>     Question mark \?
-%%   Commercial at \@     Left bracket  \[     Backslash     \\
-%%   Right bracket \]     Circumflex    \^     Underscore    \_
-%%   Grave accent  \`     Left brace    \{     Vertical bar  \|
-%%   Right brace   \}     Tilde         \~}
diff --git a/Master/texmf-dist/bibtex/bst/amslatex/amsplain.bst b/Master/texmf-dist/bibtex/bst/amslatex/amsplain.bst
deleted file mode 100644
index 3098bee32c3..00000000000
--- a/Master/texmf-dist/bibtex/bst/amslatex/amsplain.bst
+++ /dev/null
@@ -1,1255 +0,0 @@
-%%% ====================================================================
-%%%  @BibTeX-style-file{
-%%%     filename        = "amsplain.bst",
-%%%     version         = "2.0",
-%%%     date            = "2000/03/27",
-%%%     time            = "13:49:29 EST",
-%%%     checksum        = "37449 1255 3734 27098",
-%%%     author          = "American Mathematical Society",
-%%%     address         = "American Mathematical Society,
-%%%                        Technical Support,
-%%%                        Electronic Products and Services,
-%%%                        P. O. Box 6248,
-%%%                        Providence, RI 02940,
-%%%                        USA",
-%%%     telephone       = "401-455-4080 or (in the USA and Canada)
-%%%                        800-321-4AMS (321-4267)",
-%%%     FAX             = "401-331-3842",
-%%%     email           = "tech-support@ams.org (Internet)",
-%%%     copyright       = "Copyright 1995 American Mathematical Society,
-%%%                        all rights reserved.  Copying of this file is
-%%%                        authorized only if either:
-%%%                        (1) you make absolutely no changes to your copy,
-%%%                        including name; OR
-%%%                        (2) if you do make changes, you first rename it
-%%%                        to some other name.",
-%%%     codetable       = "ISO/ASCII",
-%%%     keywords        = "bibtex, bibliography, amslatex, ams-latex",
-%%%     supported       = "yes",
-%%%     abstract        = "BibTeX bibliography style `amsplain' for BibTeX
-%%%                        versions 0.99a or later and LaTeX version 2e.
-%%%                        Produces numeric-label bibliography items in
-%%%                        a form typical for American Mathematical Society
-%%%                        publications.",
-%%%     docstring       = "The checksum field above contains a CRC-16
-%%%                        checksum as the first value, followed by the
-%%%                        equivalent of the standard UNIX wc (word
-%%%                        count) utility output of lines, words, and
-%%%                        characters.  This is produced by Robert
-%%%                        Solovay's checksum utility.",
-%%%  }
-%%% ====================================================================
-
-% See the file btxbst.doc for extra documentation other than
-% what is included here.  And see btxhak.tex for a description
-% of the BibTeX language and how to use it.
-
-% This defines the types of fields that can occur in a database entry
-% for this particular bibliography style.  Except for `language',
-% this is the standard list from plain.bst.
-
-%% Types of entries currently allowed in a BibTeX file:
-%%
-%% ARTICLE -- An article from a journal or magazine.
-%%
-%% BOOK -- A book with an explicit publisher.
-%%
-%% BOOKLET -- A work that is printed and bound,
-%% but without a named publisher or sponsoring institution.
-%%
-%% CONFERENCE -- The same as INPROCEEDINGS,
-%% included for Scribe compatibility.
-%%
-%% INBOOK -- A part of a book,
-%% which may be a chapter (or section or whatever) and/or a range of pages.
-%%
-%% INCOLLECTION -- A part of a book having its own title.
-%%
-%% INPROCEEDINGS -- An article in a conference proceedings.
-%%
-%% MANUAL -- Technical documentation.
-%%
-%% MASTERSTHESIS -- A Master's thesis.
-%%
-%% MISC -- Use this type when nothing else fits.
-%%
-%% PHDTHESIS -- A PhD thesis.
-%%
-%% PROCEEDINGS -- The proceedings of a conference.
-%%
-%% TECHREPORT -- A report published by a school or other institution,
-%% usually numbered within a series.
-%%
-%% UNPUBLISHED -- A document having an author and title, but not formally
-%% published.
-
-ENTRY
-  { address
-    author
-    booktitle
-    chapter
-    edition
-    editor
-    howpublished
-    institution
-    journal
-    key
-    language
-    month
-    mrnumber
-    note
-    number
-    organization
-    pages
-    publisher
-    school
-    series
-    title
-    type
-    volume
-    year
-  }
-  {}
-  { label bysame }
-
-% Removed after.sentence, after.block---not needed.
-
-INTEGERS { output.state before.all mid.sentence }
-
-FUNCTION {init.state.consts}
-{ #0 'before.all :=
-  #1 'mid.sentence :=
-}
-
-% Scratch variables:
-
-STRINGS { s t }
-
-% Utility functions
-
-FUNCTION {shows}
-{ duplicate$ "::::  `" swap$ * "'" * top$
-}
-
-FUNCTION {showstack}
-{"STACK====================================================================="
-top$
-stack$
-"ENDSTACK=================================================================="
-top$
-}
-
-FUNCTION {not}
-{   { #0 }
-    { #1 }
-  if$
-}
-
-FUNCTION {and}
-{   'skip$
-    { pop$ #0 }
-  if$
-}
-
-FUNCTION {or}
-{   { pop$ #1 }
-    'skip$
-  if$
-}
-
-FUNCTION {field.or.null}
-{ duplicate$ empty$
-    { pop$ "" }
-    'skip$
-  if$
-}
-
-FUNCTION {emphasize}
-{ duplicate$ empty$
-    { pop$ "" }
-    { "\emph{" swap$ * "}" * }
-  if$
-}
-
-% n.dashify is used to make sure page ranges get the TeX code
-% (two hyphens) for en-dashes.
-
-FUNCTION {n.dashify}
-{ 't :=
-  ""
-    { t empty$ not }
-    { t #1 #1 substring$ "-" =
-	{ t #1 #2 substring$ "--" = not
-	    { "--" *
-	      t #2 global.max$ substring$ 't :=
-	    }
-	    {   { t #1 #1 substring$ "-" = }
-		{ "-" *
-		  t #2 global.max$ substring$ 't :=
-		}
-	      while$
-	    }
-	  if$
-	}
-	{ t #1 #1 substring$ *
-	  t #2 global.max$ substring$ 't :=
-	}
-      if$
-    }
-  while$
-}
-
-% tie.or.space.connect connects two items with a ~ if the
-% second item is less than 3 letters long, otherwise it just puts an
-% ordinary space.
-
-FUNCTION {tie.or.space.connect}
-{ duplicate$ text.length$ #3 <
-    { "~" }
-    { " " }
-  if$
-  swap$ * *
-}
-
-FUNCTION {add.space.if.necessary}
-{ duplicate$ "" =
-    'skip$
-    { " " * }
-  if$
-}
-
-% either.or.check gives a warning if two mutually exclusive fields
-% were used in the database.
-
-FUNCTION {either.or.check}
-{ empty$
-    'pop$
-    { "can't use both " swap$ * " fields in " * cite$ * warning$ }
-  if$
-}
-
-% output.nonnull is called by output.
-
-FUNCTION {output.nonnull}
-% remove the top item from the stack because it's in the way.
-{ 's :=
-  output.state mid.sentence =
-% If we're in mid-sentence, add a comma to the new top item and write it
-    { ", " * write$ }
-% Otherwise, if we're at the beginning of a bibitem,
-    { output.state before.all =
-% just write out the top item from the stack;
-      'write$
-% and the last alternative is that we're at the end of the current
-% bibitem, so we add a period to the top stack item and write it out.
-        { add.period$ " " * write$ }
-      if$
-      mid.sentence 'output.state :=
-    }
-  if$
-% Put the top item back on the stack that we removed earlier.
-  s
-}
-
-% Output checks to see if the stack top is empty; if not, it
-% calls output.nonnull to write it out.
-
-FUNCTION {output}
-{ duplicate$ empty$
-    'pop$
-    'output.nonnull
-  if$
-}
-
-% Standard warning message for a missing or empty field. For the user
-% we call any such field `missing' without respect to the distinction
-% made by BibTeX between missing and empty.
-
-FUNCTION {missing.warning}
-{ "missing " swap$ * " in " * cite$ * warning$ }
-
-% Output.check is like output except that it gives a warning on-screen
-% if the given field in the database entry is empty.  t is the field
-% name.
-
-FUNCTION {output.check}
-{ 't :=
-  duplicate$ empty$
-    { pop$ t missing.warning }
-    'output.nonnull
-  if$
-}
-
-FUNCTION {output.bibitem}
-{ newline$
-  "\bibitem{" write$
-  cite$ write$
-  "}" write$
-  newline$
-% This empty string is the first thing that will be written
-% the next time write$ is called.  Done this way because each
-% item is saved on the stack until we find out what punctuation
-% should be added after it.  Therefore we need an empty first item.
-  ""
-  before.all 'output.state :=
-}
-
-FUNCTION {output.nonempty.mrnumber}
-{ duplicate$ missing$
-    { pop$ "" }
-    'skip$
-  if$
-  duplicate$ empty$
-    'pop$
-    { " \MR{" swap$ * "}" * write$ }
-  if$
-}
-
-FUNCTION {fin.entry}
-{ add.period$
-  write$
-  mrnumber output.nonempty.mrnumber
-  newline$
-}
-
-% Removed new.block, new.block.checka, new.block.checkb, new.sentence,
-% new.sentence.checka, and new.sentence.checkb functions here, since they
-% don't seem to be needed in the AMS style.  Also moved some real
-% basic functions like `and' and 'or' earlier in the file.
-
-INTEGERS { nameptr namesleft numnames }
-
-% The extra section to write out a language field was added
-% for AMSPLAIN.BST.  Not present in plain.bst.
-
-FUNCTION {format.language}
-{ language empty$
-    { "" }
-    { " (" language * ")" * }
-  if$
-}
-
-% This version of format.names puts names in the format
-%
-% First von Last, Jr.
-%
-% (i.e., first name first, no abbreviating to initials).
-
-FUNCTION {format.names}
-{ 's :=
-  #1 'nameptr :=
-  s num.names$ 'numnames :=
-  numnames 'namesleft :=
-    { namesleft #0 > }
-    { s nameptr "{ff~}{vv~}{ll}{, jj}" format.name$ 't :=
-      nameptr #1 >
-	{ namesleft #1 >
-	    { ", " * t * }
-	    { numnames #2 >
-		{ "," * }
-		'skip$
-	      if$
-	      t "others" =
-		{ " et~al." * }
-		{ " and " * t * }
-	      if$
-	    }
-	  if$
-	}
-	't
-      if$
-      nameptr #1 + 'nameptr :=
-      namesleft #1 - 'namesleft :=
-    }
-  while$
-}
-
-FUNCTION {format.authors}
-{ author empty$
-    { "" }
-    { bysame "\bysame" =
-         {"\bysame"}
-         { author format.names }
-     if$
-    }
-  if$
-}
-
-FUNCTION {format.editors}
-{ editor empty$
-    { "" }
-    { editor format.names
-      editor num.names$ #1 >
-	{ " (eds.)" * }
-	{ " (ed.)" * }
-      if$
-    }
-  if$
-}
-
-FUNCTION {format.nonauthor.editors}
-{ editor empty$
-    { "" }
-    { editor format.names
-      editor num.names$ #1 >
-	{ ", eds." * }
-	{ ", ed." * }
-      if$
-    }
-  if$
-}
-
-FUNCTION {format.title}
-{ title empty$
-    { "" }
-    { title "t" change.case$ emphasize }
-  if$
-}
-
-FUNCTION {format.journal.vol.year}
-{ journal empty$
-    { "journal name" missing.warning ""}
-    { journal }
-  if$
-  volume empty$
-    'skip$
-    { " \textbf{" * volume * "}" * }
-  if$
-  year empty$
-    { "year" missing.warning }
-    { " (" * year * ")" * }
-  if$
-}
-
-% For formatting the issue number for a journal article.
-
-FUNCTION {format.number}
-{ number empty$
-    { "" }
-    { "no.~" number * }
-  if$
-}
-
-% For formatting miscellaneous dates
-
-FUNCTION {format.date}
-{ year empty$
-    { month empty$
-	{ "" }
-	{ "there's a month but no year in " cite$ * warning$
-	  month
-	}
-      if$
-    }
-    { month empty$
-	'year
-	{ month " " * year * }
-      if$
-    }
-  if$
-}
-
-%%      The volume, series and number information is sort of tricky.
-%%      This code handles it as follows:
-%%      If the series is present, and the volume, but not the number,
-%%        then we do "\emph{Book title}, Series Name, vol. 000"
-%%      If the series is present, and the number, but not the volume,
-%%        then we do "\emph{Book title}, Series Name, no. 000"
-%%      If the series is present, and both number and volume,
-%%        then we do "\emph{Book title}, vol. XX, Series Name, no. 000"
-%%      Finally, if the series is absent,
-%%        then we do "\emph{Book title}, vol. XX"
-%%        or         "\emph{Book title}, no. 000"
-%%        and if both volume and number are present, give a warning message.
-
-FUNCTION {format.bookvolume.series.number}
-{ volume empty$
-    { "" % Push the empty string as a placeholder in case everything else
-         % is empty too.
-      series empty$
-        'skip$
-        { pop$ series } % if series is not empty put in stack
-      if$
-      number empty$
-        'skip$
-        { duplicate$ empty$ % if no preceding material,
-            'skip$          % do nothing, otherwise
-            { ", " * }      % add a comma and space to separate.
-          if$
-          "no." number tie.or.space.connect * % add the number information
-        }
-      if$
-    }
-%% If the volume is NOT EMPTY:
-    { "vol." volume tie.or.space.connect % vol. XX
-      number empty$
-        { series empty$
-            'skip$
-            { series ", " * swap$ *}    % Series Name, vol. XX
-          if$
-        }
-        { series empty$
-            { "can't use both volume and number if series info is missing"
-              warning$
-              "in BibTeX entry type `" type$ * "'" * top$
-            }
-            { ", " * series * ", no." * number tie.or.space.connect }
-          if$
-        }
-      if$
-    }
-  if$
-
-}  % end of format.bookvolume.series.number
-
-%% format.inproc.title.where.editors is used by inproceedings entry types
-
-%%      No case changing or emphasizing for the title.  We want initial
-%%      caps, roman.
-%%      We add parentheses around the address (place where conference
-%%      was held).
-%%      Likewise we add parentheses around the editors' names.
-
-FUNCTION {format.inproc.title.address.editors}
-{ booktitle empty$
-    { "" }
-    { booktitle
-      address empty$
-        'skip$
-        { add.space.if.necessary "(" * address * ")" * }
-      if$
-      editor empty$
-        'skip$
-        { add.space.if.necessary "(" * format.nonauthor.editors * ")" * }
-      if$
-    }
-  if$
-}
-
-%% format.incoll.title.editors is similar to format.inproc... but
-%% omits the address. For collections that are not proceedings volumes.
-
-FUNCTION {format.incoll.title.editors}
-{ booktitle empty$
-    { "" }
-    { editor empty$
-        { booktitle }
-        { booktitle
-          add.space.if.necessary "(" * format.nonauthor.editors * ")" *
-        }
-      if$
-    }
-  if$
-}
-
-FUNCTION {format.edition}
-{ edition empty$
-    { "" }
-    { output.state mid.sentence =
-	{ edition "l" change.case$ " ed." * }
-	{ edition "t" change.case$ " ed." * }
-      if$
-    }
-  if$
-}
-
-INTEGERS { multiresult }
-
-FUNCTION {multi.page.check}
-{ 't :=
-  #0 'multiresult :=
-    { multiresult not
-      t empty$ not
-      and
-    }
-    { t #1 #1 substring$
-      duplicate$ "-" =
-      swap$ duplicate$ "," =
-      swap$ "+" =
-      or or
-	{ #1 'multiresult := }
-	{ t #2 global.max$ substring$ 't := }
-      if$
-    }
-  while$
-  multiresult
-}
-
-FUNCTION {format.pages}
-{ pages empty$
-    { "" }
-    { pages n.dashify }
-  if$
-}
-
-FUNCTION {format.book.pages}
-{ pages empty$
-    { "" }
-    { pages multi.page.check
-	{ "pp.~" pages n.dashify * }
-	{ "p.~" pages * }
-      if$
-    }
-  if$
-}
-
-FUNCTION {format.chapter.pages}
-{ chapter empty$
-    'format.book.pages
-    { type empty$
-	{ "ch.~" }
-	{ type "l" change.case$ " " * }
-      if$
-      chapter *
-      pages empty$
-	'skip$
-	{ ", " * format.book.pages * }
-      if$
-    }
-  if$
-}
-
-FUNCTION {empty.misc.check}
-{ author empty$ title empty$ howpublished empty$
-  month empty$ year empty$ note empty$
-  and and and and and
-  key empty$ not and
-    { "all relevant fields are empty in " cite$ * warning$ }
-    'skip$
-  if$
-}
-
-FUNCTION {format.thesis.type}
-{ type empty$
-    'skip$
-    { pop$
-      type "t" change.case$
-    }
-  if$
-}
-
-FUNCTION {format.tr.number}
-{ type empty$
-    { "Tech. Report" }
-    'type
-  if$
-  number empty$
-    { "t" change.case$ }
-    { number tie.or.space.connect }
-  if$
-}
-
-% The format.crossref functions haven't been paid much attention
-% at the present time (June 1990) and could probably use some
-% work.  MJD
-
-FUNCTION {format.article.crossref}
-{ key empty$
-    { journal empty$
-	{ "need key or journal for " cite$ * " to crossref " * crossref *
-	  warning$
-	  ""
-	}
-	{ "in " journal * }
-      if$
-    }
-    { "in " key * }
-  if$
-  " \cite{" * crossref * "}" *
-}
-
-FUNCTION {format.crossref.editor}
-{ editor #1 "{vv~}{ll}" format.name$
-  editor num.names$ duplicate$
-  #2 >
-    { pop$ " et~al." * }
-    { #2 <
-	'skip$
-	{ editor #2 "{ff }{vv }{ll}{ jj}" format.name$ "others" =
-	    { " et~al." * }
-	    { " and " * editor #2 "{vv~}{ll}" format.name$ * }
-	  if$
-	}
-      if$
-    }
-  if$
-}
-
-FUNCTION {format.book.crossref}
-{ volume empty$
-    { "empty volume in " cite$ * "'s crossref of " * crossref * warning$
-      "in "
-    }
-    { "vol." volume tie.or.space.connect
-      " of " *
-    }
-  if$
-  editor empty$
-  editor field.or.null author field.or.null =
-  or
-    { key empty$
-	{ series empty$
-	    { "need editor, key, or series for " cite$ * " to crossref " *
-	      crossref * warning$
-	      "" *
-	    }
-	    { series * }
-	  if$
-	}
-	{ key * }
-      if$
-    }
-    { format.crossref.editor * }
-  if$
-  " \cite{" * crossref * "}" *
-}
-
-FUNCTION {format.incoll.inproc.crossref}
-{ editor empty$
-  editor field.or.null author field.or.null =
-  or
-    { key empty$
-	{ booktitle empty$
-	    { "need editor, key, or booktitle for " cite$ * " to crossref " *
-	      crossref * warning$
-	      ""
-	    }
-	    { "in \emph{" booktitle * "}" * }
-	  if$
-	}
-	{ "in " key * }
-      if$
-    }
-    { "in " format.crossref.editor * }
-  if$
-  " \cite{" * crossref * "}" *
-}
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-% The main functions for each entry type.
-
-% journal, vol and year are formatted together because they are
-% not separated by commas.
-
-FUNCTION {article}
-{ output.bibitem
-  format.authors "author" output.check
-  format.title "title" output.check
-  crossref missing$
-    { format.journal.vol.year output
-      format.number output
-      format.pages "pages" output.check
-    }
-    { format.article.crossref output.nonnull
-      format.pages "pages" output.check
-    }
-  if$
-  format.language *
-  note output
-  fin.entry
-}
-
-FUNCTION {book}
-{ output.bibitem
-  author empty$
-    { format.editors "author and editor" output.check }
-    { format.authors output.nonnull
-      crossref missing$
-	{ "author and editor" editor either.or.check }
-	'skip$
-      if$
-    }
-  if$
-  format.title "title" output.check
-  format.edition output
-  crossref missing$
-    { format.bookvolume.series.number output
-      publisher "publisher" output.check
-      address output
-    }
-    { format.book.crossref output.nonnull
-    }
-  if$
-  format.date "year" output.check
-  format.language *
-  note output
-  fin.entry
-}
-
-FUNCTION {booklet}
-{ output.bibitem
-  format.authors output
-  format.title "title" output.check
-  howpublished output
-  address output
-  format.date output
-  note output
-  fin.entry
-}
-
-FUNCTION {inbook}
-{ output.bibitem
-  author empty$
-    { format.editors "author and editor" output.check }
-    { format.authors output.nonnull
-      crossref missing$
-	{ "author and editor" editor either.or.check }
-	'skip$
-      if$
-    }
-  if$
-  format.title "title" output.check
-  format.edition output
-  crossref missing$
-    { format.bookvolume.series.number output
-      format.chapter.pages "chapter and pages" output.check
-      publisher "publisher" output.check
-      address output
-    }
-    { format.chapter.pages "chapter and pages" output.check
-      format.book.crossref output.nonnull
-    }
-  if$
-  format.date "year" output.check
-  format.language *
-  note output
-  fin.entry
-}
-
-FUNCTION {incollection}
-{ output.bibitem
-  format.authors "author" output.check
-  format.title "title" output.check
-  crossref missing$
-    { format.incoll.title.editors "booktitle" output.check
-      format.bookvolume.series.number output
-      publisher "publisher" output.check
-      address output
-      format.edition output
-      format.date "year" output.check
-    }
-    { format.incoll.inproc.crossref output.nonnull
-    }
-  if$
-  note output
-  format.book.pages output
-  format.language *
-  fin.entry
-}
-
-FUNCTION {inproceedings}
-{ output.bibitem
-  format.authors "author" output.check
-  format.title "title" output.check
-  crossref missing$
-    { format.inproc.title.address.editors "booktitle" output.check
-      format.bookvolume.series.number output
-      organization output
-      publisher output
-      format.date "year" output.check
-    }
-    { format.incoll.inproc.crossref output.nonnull
-    }
-  if$
-  note output
-  format.book.pages output
-  format.language *
-  fin.entry
-}
-
-FUNCTION {conference} { inproceedings }
-
-FUNCTION {manual}
-{ output.bibitem
-  author empty$
-    { organization empty$
-	'skip$
-	{ organization output.nonnull
-	  address output
-	}
-      if$
-    }
-    { format.authors output.nonnull }
-  if$
-  format.title "title" output.check
-  author empty$
-    { organization empty$
-	{ address output }
-	'skip$
-      if$
-    }
-    { organization output
-      address output
-    }
-  if$
-  format.edition output
-  format.date output
-  note output
-  fin.entry
-}
-
-FUNCTION {mastersthesis}
-{ output.bibitem
-  format.authors "author" output.check
-  format.title "title" output.check
-  "Master's thesis" format.thesis.type output.nonnull
-  school "school" output.check
-  address output
-  format.date "year" output.check
-  note output
-  format.book.pages output
-  fin.entry
-}
-
-FUNCTION {misc}
-{ output.bibitem
-  format.authors output
-  format.title output
-  howpublished output
-  format.date output
-  note output
-  format.book.pages output
-  fin.entry
-  empty.misc.check
-}
-
-FUNCTION {phdthesis}
-{ output.bibitem
-  format.authors "author" output.check
-  format.title "title" output.check
-  "Ph.D. thesis" format.thesis.type output.nonnull
-  school "school" output.check
-  address output
-  format.date "year" output.check
-  note output
-  format.book.pages output
-  fin.entry
-}
-
-FUNCTION {proceedings}
-{ output.bibitem
-  editor empty$
-    { organization output }
-    { format.editors output.nonnull }
-  if$
-  format.title "title" output.check
-  format.bookvolume.series.number output
-  address empty$
-    { editor empty$
-        'skip$
-	{ organization output }
-      if$
-      publisher output
-      format.date "year" output.check
-    }
-    { address output.nonnull
-      editor empty$
-	'skip$
-	{ organization output }
-      if$
-      publisher output
-      format.date "year" output.check
-    }
-  if$
-  note output
-  fin.entry
-}
-
-FUNCTION {techreport}
-{ output.bibitem
-  format.authors "author" output.check
-  format.title "title" output.check
-  format.tr.number output.nonnull
-  institution "institution" output.check
-  address output
-  format.date "year" output.check
-  note output
-  fin.entry
-}
-
-FUNCTION {unpublished}
-{ output.bibitem
-  format.authors "author" output.check
-  format.title "title" output.check
-  note "note" output.check
-  format.date output
-  fin.entry
-}
-
-FUNCTION {default.type} { misc }
-
-MACRO {jan} {"January"}
-
-MACRO {feb} {"February"}
-
-MACRO {mar} {"March"}
-
-MACRO {apr} {"April"}
-
-MACRO {may} {"May"}
-
-MACRO {jun} {"June"}
-
-MACRO {jul} {"July"}
-
-MACRO {aug} {"August"}
-
-MACRO {sep} {"September"}
-
-MACRO {oct} {"October"}
-
-MACRO {nov} {"November"}
-
-MACRO {dec} {"December"}
-
-READ
-
-FUNCTION {sortify}
-{ purify$
-  "l" change.case$
-}
-
-INTEGERS { len }
-
-FUNCTION {chop.word}
-{ 's :=
-  'len :=
-  s #1 len substring$ =
-    { s len #1 + global.max$ substring$ }
-    's
-  if$
-}
-
-FUNCTION {sort.format.names}
-{ 's :=
-  #1 'nameptr :=
-  ""
-  s num.names$ 'numnames :=
-  numnames 'namesleft :=
-    { namesleft #0 > }
-    { nameptr #1 >
-	{ "   " * }
-	'skip$
-      if$
-      s nameptr "{vv{ } }{ll{ }}{  ff{ }}{  jj{ }}" format.name$ 't :=
-      nameptr numnames = t "others" = and
-	{ "et al" * }
-	{ t sortify * }
-      if$
-      nameptr #1 + 'nameptr :=
-      namesleft #1 - 'namesleft :=
-    }
-  while$
-}
-
-FUNCTION {sort.format.title}
-{ 't :=
-  "A " #2
-    "An " #3
-      "The " #4 t chop.word
-    chop.word
-  chop.word
-  sortify
-  #1 global.max$ substring$
-}
-
-FUNCTION {author.sort}
-{ author empty$
-    { key empty$
-	{ "to sort, need author or key in " cite$ * warning$
-	  ""
-	}
-	{ key sortify }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-
-FUNCTION {author.editor.sort}
-{ author empty$
-    { editor empty$
-	{ key empty$
-	    { "to sort, need author, editor, or key in " cite$ * warning$
-	      ""
-	    }
-	    { key sortify }
-	  if$
-	}
-	{ editor sort.format.names }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-
-FUNCTION {author.organization.sort}
-{ author empty$
-    { organization empty$
-	{ key empty$
-	    { "to sort, need author, organization, or key in " cite$ * warning$
-	      ""
-	    }
-	    { key sortify }
-	  if$
-	}
-	{ "The " #4 organization chop.word sortify }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-
-FUNCTION {editor.organization.sort}
-{ editor empty$
-    { organization empty$
-	{ key empty$
-	    { "to sort, need editor, organization, or key in " cite$ * warning$
-	      ""
-	    }
-	    { key sortify }
-	  if$
-	}
-	{ "The " #4 organization chop.word sortify }
-      if$
-    }
-    { editor sort.format.names }
-  if$
-}
-
-FUNCTION {presort}
-{ type$ "book" =
-  type$ "inbook" =
-  or
-    'author.editor.sort
-    { type$ "proceedings" =
-	'editor.organization.sort
-	{ type$ "manual" =
-	    'author.organization.sort
-	    'author.sort
-	  if$
-	}
-      if$
-    }
-  if$
-  "    "
-  *
-  year field.or.null sortify
-  *
-  "    "
-  *
-  title field.or.null
-  sort.format.title
-  *
-  #1 entry.max$ substring$
-  'sort.key$ :=
-}
-
-ITERATE {presort}
-
-SORT
-
-STRINGS { longest.label prev.author this.author }
-
-INTEGERS { number.label longest.label.width }
-
-FUNCTION {initialize.longest.label}
-{ "" 'longest.label :=
-  #1 'number.label :=
-  #0 'longest.label.width :=
-  "abcxyz" 'prev.author :=
-  "" 'this.author :=
-}
-
-FUNCTION {longest.label.pass}
-{ number.label int.to.str$ 'label :=
-  number.label #1 + 'number.label :=
-  label width$ longest.label.width >
-    { label 'longest.label :=
-      label width$ 'longest.label.width :=
-    }
-    'skip$
-  if$
-  author empty$
-    { editor empty$
-      { "" }
-      'editor
-      if$
-    }
-    'author
-  if$
-  'this.author :=
-  this.author prev.author =
-    { "\bysame" 'bysame := }
-    { "" 'bysame :=
-      this.author "" =
-        { "abcxyz" }
-        'this.author
-      if$
-      'prev.author :=
-    }
-  if$
-}
-
-EXECUTE {initialize.longest.label}
-
-ITERATE {longest.label.pass}
-
-FUNCTION {write.lines}
-{ { duplicate$ "." = NOT }
-    { write$ newline$ }
-  while$
-  pop$
-}
-
-FUNCTION {begin.bib}
-{ preamble$ empty$
-    'skip$
-    { preamble$ write$ newline$ }
-  if$
-  "\providecommand{\bysame}{\leavevmode\hbox to3em{\hrulefill}\thinspace}"
-    write$ newline$
-  "\providecommand{\MR}{\relax\ifhmode\unskip\space\fi MR }"
-    write$ newline$
-  "% \MRhref is called by the amsart/book/proc definition of \MR."
-    write$ newline$
-  "\providecommand{\MRhref}[2]{%"
-    write$ newline$
-  "  \href{http://www.ams.org/mathscinet-getitem?mr=#1}{#2}"
-    write$ newline$
-  "}"
-    write$ newline$
-  "\providecommand{\href}[2]{#2}"
-    write$ newline$
-  "\begin{thebibliography}{"  longest.label  * "}" *
-    write$ newline$
-}
-
-EXECUTE {begin.bib}
-
-EXECUTE {init.state.consts}
-
-ITERATE {call.type$}
-
-FUNCTION {end.bib}
-{ newline$
-  "\end{thebibliography}" write$ newline$
-}
-
-EXECUTE {end.bib}
-%% \CharacterTable
-%%  {Upper-case    \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
-%%   Lower-case    \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
-%%   Digits        \0\1\2\3\4\5\6\7\8\9
-%%   Exclamation   \!     Double quote  \"     Hash (number) \#
-%%   Dollar        \$     Percent       \%     Ampersand     \&
-%%   Acute accent  \'     Left paren    \(     Right paren   \)
-%%   Asterisk      \*     Plus          \+     Comma         \,
-%%   Minus         \-     Point         \.     Solidus       \/
-%%   Colon         \:     Semicolon     \;     Less than     \<
-%%   Equals        \=     Greater than  \>     Question mark \?
-%%   Commercial at \@     Left bracket  \[     Backslash     \\
-%%   Right bracket \]     Circumflex    \^     Underscore    \_
-%%   Grave accent  \`     Left brace    \{     Vertical bar  \|
-%%   Right brace   \}     Tilde         \~}
diff --git a/Master/texmf-dist/bibtex/bst/amslatex/amsra.bst b/Master/texmf-dist/bibtex/bst/amslatex/amsra.bst
deleted file mode 100644
index a770f5a0a2c..00000000000
--- a/Master/texmf-dist/bibtex/bst/amslatex/amsra.bst
+++ /dev/null
@@ -1,775 +0,0 @@
-%%
-%% This is file `amsra.bst',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsxport.dtx  (with options: `bst,sort,alpha')
-%% 
-%%% ====================================================================
-%%% @BibTeX-source-file{
-%%%   filename  = "amsxport.dtx",
-%%%   version   = "2.00",
-%%%   date      = "2004/06/28",
-%%%   time      = "14:50:12 EDT",
-%%%   author    = "Michael J Downes",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support at ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "The BibTeX style file amsxport.bst produces .bbl
-%%%                entries where most of the database structure is
-%%%                retained. This is intended for processing by a smart
-%%%                bibliography package such as the amsrefs package.",
-%%%   checksum  = "40425 1822 6396 51551",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-ENTRY
-  {
-    address      institution  number       status
-    archive      isbn         organization subtitle
-    author       issn         pages        title
-    booktitle    journal      part         translator
-    chapter      key          pii          type
-    date         language     preprint     url
-    edition      meeting      publisher    volume
-    editor       month        review       xid
-    eprint       mrnumber     school       year
-    howpublished note         series
-  }
-  { }
-  { label }
-MACRO {jan} {"-01"}
-MACRO {feb} {"-02"}
-MACRO {mar} {"-03"}
-MACRO {apr} {"-04"}
-MACRO {may} {"-05"}
-MACRO {jun} {"-06"}
-MACRO {jul} {"-07"}
-MACRO {aug} {"-08"}
-MACRO {sep} {"-09"}
-MACRO {oct} {"-10"}
-MACRO {nov} {"-11"}
-MACRO {dec} {"-12"}
-STRINGS { p s t l }
-INTEGERS { len ptr }
-
-FUNCTION {NOT} { { #0 } { #1 } if$ }
-
-FUNCTION {AND} { 'skip$ { pop$ #0 } if$ }
-
-FUNCTION {OR} { { pop$ #1 } 'skip$ if$ }
-
-FUNCTION {TRUE} { #1 }
-
-FUNCTION {FALSE} { #0 }
-
-FUNCTION {incr.ptr} { ptr #1 + 'ptr := }
-
-FUNCTION {current.char} { ptr #1 substring$ }
-FUNCTION {copy.two.chars} { t * incr.ptr s current.char * incr.ptr }
-
-FUNCTION {is.digit} {
-    chr.to.int$
-    duplicate$
-    "0" chr.to.int$ #1 - >
-    swap$
-    "9" chr.to.int$ #1 + <
-    AND
-}
-
-FUNCTION {is.lowercase.letter} {
-    chr.to.int$ duplicate$
-    "a" chr.to.int$ #1 - >
-    swap$
-    "z" chr.to.int$ #1 + <
-    AND
-}
-FUNCTION {is.uppercase.letter} {
-    chr.to.int$ duplicate$
-    "A" chr.to.int$ #1 - >
-    swap$
-    "Z" chr.to.int$ #1 + <
-    AND
-}
-FUNCTION {is.letter} {
-    duplicate$
-    is.lowercase.letter
-        { pop$ TRUE }
-        { is.uppercase.letter }
-    if$
-}
-FUNCTION {skip.accent} { pop$ incr.ptr }
-FUNCTION {strip.label} {
-    's :=
-    #1 'ptr :=
-    ""
-    { s ptr #1 substring$ duplicate$ empty$ NOT }
-        { duplicate$ is.letter
-            { * }
-            { duplicate$ "\" =
-                { skip.accent }
-                'pop$
-              if$
-            }
-          if$
-          incr.ptr
-        }
-    while$
-    pop$
-}
-FUNCTION {sortify} {
-    purify$
-    "l" change.case$
-}
-FUNCTION {rpad} {
-    swap$
-    'l :=
-    l text.length$ - 'len :=
-    { len #0 > }
-        {
-            l " " * 'l :=
-            len #1 - 'len :=
-        }
-    while$
-    l
-}
-FUNCTION {lpad} {
-    swap$
-    'l :=
-    l text.length$ - 'len :=
-    { len #0 > }
-        {
-            " " l * 'l :=
-            len #1 - 'len :=
-        }
-    while$
-    l
-}
-FUNCTION {field.or.null} {
-    duplicate$ empty$
-        { pop$ "" }
-        'skip$
-    if$
-}
-FUNCTION {missing.or.empty} { duplicate$ missing$ swap$ empty$ OR }
-
-FUNCTION {append.ndash.and.skip.hyphens} {
-    "\ndash " *
-    incr.ptr
-    { s current.char "-" = }
-        { incr.ptr }
-    while$
-}
-FUNCTION {n.dashify} {
-    's :=
-    #1 'ptr :=
-    ""
-    { s current.char 't :=  t "" = NOT }
-      { t "\" =
-          { copy.two.chars }
-          { t "-" =
-              { append.ndash.and.skip.hyphens }
-              { t * incr.ptr }
-            if$
-          }
-        if$
-      }
-    while$
-}
-FUNCTION {missing.warning} {
-    "missing " swap$ * " in " * cite$ * warning$
-}
-
-INTEGERS { string.ptr }
-
-FUNCTION {string.length} {
-    #1 'string.ptr :=
-    { duplicate$ string.ptr #1 substring$ "" = 'FALSE 'TRUE if$ }
-        { string.ptr #1 + 'string.ptr := }
-    while$
-    pop$
-    string.ptr #1 -
-}
-FUNCTION {format.title}{
-    duplicate$
-    missing.or.empty
-        { pop$ "" }
-        { "t" change.case$ }
-    if$
-}
-FUNCTION {start.field} {
-    #12 lpad "={" * write$
-}
-FUNCTION {fin.field} { "}," write$ newline$ }
-
-FUNCTION {write.field} {
-    duplicate$
-    missing$
-        { pop$ missing.warning }
-        { duplicate$ empty$
-            { pop$ missing.warning }
-            { swap$ start.field write$ fin.field }
-          if$
-        }
-    if$
-}
-FUNCTION {optional.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        { swap$ start.field write$ fin.field }
-    if$
-}
-FUNCTION {optional.title.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        { format.title swap$ start.field write$ fin.field }
-    if$
-}
-FUNCTION {optional.pages.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        { swap$ start.field
-          n.dashify
-          write$ fin.field
-        }
-    if$
-}
-FUNCTION {optional.mr.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        {
-          swap$ start.field
-          "\MR{" swap$ * "}" * write$ fin.field
-        }
-    if$
-}
-FUNCTION {remove.ordinal.suffix} {
-    's :=
-    s string.length 'len :=
-    #1 'ptr :=
-    { ptr len < s ptr #1 substring$ is.digit AND }
-        'incr.ptr
-    while$
-    s ptr global.max$ substring$ 'p :=
-    p "st" =
-        { TRUE }
-        { p "nd" =
-            { TRUE }
-            { p "rd" =
-                { TRUE }
-                { p "th" =
-                    { TRUE }
-                    { FALSE }
-                  if$
-                }
-              if$
-            }
-          if$
-        }
-    if$
-    { s #1 ptr #1 - substring$ }
-    { s }
-  if$
-}
-FUNCTION {optional.edition.field} {
-    duplicate$ missing.or.empty
-        { pop$ pop$ }
-        { swap$ start.field
-          remove.ordinal.suffix
-          write$ fin.field
-        }
-    if$
-}
-INTEGERS { nameptr numnames namesleft }
-STRINGS { namelist fieldname }
-FUNCTION {format.name} { "{vv~}{ll}{, ff}{, jj}" format.name$ }
-
-FUNCTION {optional.name.field}{
-    duplicate$ missing.or.empty
-        { pop$ pop$ }
-        { swap$ 'fieldname :=
-          duplicate$ num.names$
-          'namesleft :=
-          #1 'ptr :=
-          { namesleft #0 > }
-            { fieldname start.field
-              duplicate$ ptr format.name write$
-              fin.field
-              ptr #1 + 'ptr :=
-              namesleft #1 - 'namesleft :=
-            }
-          while$
-        pop$
-        }
-    if$
-}
-FUNCTION {assemble.date.field}
-{ date missing$
-    { year missing.or.empty
-        { status missing.or.empty
-            { "No year or other date information for "
-               cite$ * warning$ }
-            'skip$
-          if$
-          "status"
-        }
-        { year month missing$ { "" } { month } if$ * }
-      if$
-    }
-    { date }
-  if$
-  duplicate$ "status" =
-    { pop$ pop$ }
-    { swap$ start.field write$ fin.field }
-  if$
-}
-FUNCTION {optional.journal.field} {
-    duplicate$ missing.or.empty
-        { pop$ pop$ }
-        {
-            's :=
-            start.field
-            #1 'ptr :=
-            s current.char is.lowercase.letter
-                {
-                    s "/" * 's :=
-                    { s ptr #1 substring$ "/" = NOT }
-                        { incr.ptr }
-                    while$
-                    s ptr #1 + #1 substring$ empty$
-                        { s #1 ptr #1 - substring$ }
-                        {
-                            s #1 ptr #1 - substring$
-                            write$
-                            fin.field
-                            "ISSN" start.field
-                            s ptr #1 + #9 substring$
-                        }
-                    if$
-                }
-                { s }
-            if$
-            write$
-            fin.field
-        }
-    if$
-}
-FUNCTION {optional.type.field}
-{ duplicate$ missing.or.empty
-    { type$ "mastersthesis" = { "Master's Thesis" }
-        { type$ "phdthesis" = { "Ph.D. Thesis" }
-          { "" } if$ } if$
-      swap$ pop$
-    }
-    'skip$
-  if$
-  duplicate$ empty$
-    { pop$ pop$ }
-    { swap$ start.field write$ fin.field }
-  if$
-}
-FUNCTION {url.note.status.review} {
-    "url" url optional.field
-    "note" note optional.field
-    "status" status optional.field
-    "review" review optional.field
-    "review" mrnumber optional.mr.field
-}
-FUNCTION {start.entry} {
-    newline$
-    "\bib{" cite$ * "}{" *
-    type$ "mastersthesis" = type$ "phdthesis" =  OR
-        { "thesis" }
-        { type$ }
-    if$
-    * "}{" * write$
-    newline$
-}
-FUNCTION {fin.entry} {
-    "}" write$
-    newline$
-}
-FUNCTION {article} {
-    start.entry
-    "author" author optional.name.field
-    "translator" translator optional.name.field
-    "title" title format.title write.field
-    "subtitle" subtitle optional.title.field
-    "language" language optional.field
-    "organization" organization optional.field
-    "how" howpublished optional.field
-    "date" assemble.date.field
-    "ISSN" issn optional.field
-    "journal" journal optional.journal.field
-    "volume" volume optional.field
-    "number" number optional.field
-    "pages" pages optional.pages.field
-    "PII" pii optional.field
-    "archive" archive optional.field
-    "eprint" eprint optional.field
-    "preprint" preprint optional.field
-    url.note.status.review
-    fin.entry
-}
-FUNCTION {inproceedings} {
-    start.entry
-    "author" author optional.name.field
-    "translator" translator optional.name.field
-    "title" title format.title write.field
-    "subtitle" subtitle optional.title.field
-    "language" language optional.field
-    "organization" organization optional.field
-    "how" howpublished optional.field
-    "date" assemble.date.field
-    "xid" xid optional.field
-    "conference" meeting optional.field
-    "booktitle" booktitle optional.title.field
-    "edition" edition optional.edition.field
-    "editor" editor optional.name.field
-    "series" series optional.field
-    "volume" volume optional.field
-    "publisher" publisher optional.field
-    "address" address optional.field
-    "pages" pages optional.pages.field
-    url.note.status.review
-    fin.entry
-}
-FUNCTION {inbook} { inproceedings }
-FUNCTION {incollection} { inproceedings }
-FUNCTION {conference} { inproceedings }
-FUNCTION {book} {
-    start.entry
-    "author" author optional.name.field
-    "editor" editor optional.name.field
-    "translator" translator optional.name.field
-    "title" title missing$ { booktitle } { title } if$
-       format.title write.field
-    "subtitle" subtitle optional.title.field
-    "type" type optional.type.field
-    "language" language optional.field
-    "conference" meeting optional.field
-    "edition" edition optional.edition.field
-    "series" series optional.field
-    "publisher" publisher optional.field
-    organization missing.or.empty
-        { "institution" institution optional.field }
-        { "organization" organization optional.field }
-    if$
-    "address" address optional.field
-    "how" howpublished optional.field
-    "date" year write.field
-    "volume" volume optional.field
-    "number" number optional.field
-    "ISBN" isbn optional.field
-    url.note.status.review
-    fin.entry
-}
-FUNCTION {booklet} { book }
-FUNCTION {manual} { book }
-FUNCTION {mastersthesis} { book }
-
-FUNCTION {phdthesis} { book }
-
-FUNCTION {proceedings} { book }
-
-FUNCTION {collection} { book }
-
-FUNCTION {techreport} { book }
-
-FUNCTION {unpublished} { book }
-
-FUNCTION {misc} { book }
-
-FUNCTION {default.type} { misc }
-
-
-READ
-
-FUNCTION {chop.word} {
-    's :=
-    'len :=
-    s #1 len substring$ =
-        { s len #1 + global.max$ substring$ }
-        's
-    if$
-}
-FUNCTION {sort.format.title} {
-    't :=
-    "A " #2
-      "An " #3
-        "The " #4 t chop.word
-      chop.word
-    chop.word
-    sortify
-    #1 global.max$ substring$
-}
-FUNCTION {format.lab.names} {
-   's :=
-    s num.names$ 'numnames :=
-    numnames #1 >
-      { numnames #4 >
-          { #3 'namesleft := }
-          { numnames 'namesleft := }
-        if$
-        #1 'nameptr :=
-        ""
-          { namesleft #0 > }
-          { nameptr numnames =
-              { s nameptr "{ff }{vv }{ll}{ jj}" format.name$ "others" =
-                  { "{\etalchar{+}}" * }
-                  { s nameptr "{v{}}{l{}}" format.name$ * }
-                if$
-              }
-              { s nameptr "{v{}}{l{}}" format.name$ * }
-            if$
-            nameptr #1 + 'nameptr :=
-            namesleft #1 - 'namesleft :=
-          }
-        while$
-        numnames #4 >
-          { "{\etalchar{+}}" * }
-          'skip$
-        if$
-      }
-      { s #1 "{v{}}{l{}}" format.name$
-        duplicate$ text.length$ #2 <
-          { pop$ s #1 "{ll}" format.name$ #3 text.prefix$ }
-          'skip$
-        if$
-      }
-    if$
-}
-
-FUNCTION {author.key.label}
-{ author empty$
-    { key empty$
-{ cite$ #1 #3 substring$ }
-{ key #3 text.prefix$ }
-      if$
-    }
-    { author format.lab.names }
-  if$
-}
-
-FUNCTION {author.editor.key.label}
-{ author empty$
-    { editor empty$
-{ key empty$
-    { cite$ #1 #3 substring$ }
-    { key #3 text.prefix$ }
-  if$
-}
-{ editor format.lab.names }
-      if$
-    }
-    { author format.lab.names }
-  if$
-}
-
-FUNCTION {author.key.organization.label}
-{ author empty$
-    { key empty$
-{ organization empty$
-    { cite$ #1 #3 substring$ }
-    { "The " #4 organization chop.word #3 text.prefix$ }
-  if$
-}
-{ key #3 text.prefix$ }
-      if$
-    }
-    { author format.lab.names }
-  if$
-}
-
-FUNCTION {editor.key.organization.label}
-{ editor empty$
-    { key empty$
-{ organization empty$
-    { cite$ #1 #3 substring$ }
-    { "The " #4 organization chop.word #3 text.prefix$ }
-  if$
-}
-{ key #3 text.prefix$ }
-      if$
-    }
-    { editor format.lab.names }
-  if$
-}
-
-FUNCTION {calc.label}{
-    type$ "book" =  type$ "inbook" =  OR
-    'author.editor.key.label
-    { type$ "proceedings" =
-'editor.key.organization.label
-{ type$ "manual" =
-    'author.key.organization.label
-    'author.key.label
-  if$
-}
-      if$
-    }
-    if$
-    strip.label
-    sortify
-    year field.or.null
-    #3 #8 substring$
-    purify$ *
-    'label :=
-}
-FUNCTION {sort.format.names} {
-    's :=
-    #1 'ptr :=
-    ""
-    s num.names$ 'numnames :=
-    numnames 'namesleft :=
-      { namesleft #0 > }
-      { ptr #1 >
-          { " " * }
-          'skip$
-        if$
-        s ptr "{ll}{ ff}{ jj}" format.name$ 't :=
-        ptr numnames = t "others" = AND
-          { "et al" }
-          { t sortify }
-        if$
-        #20 rpad *
-        ptr #1 + 'ptr :=
-        namesleft #1 - 'namesleft :=
-      }
-    while$
-}
-FUNCTION {sort.warning} {
-    "to sort, need " swap$ * " or key in " * cite$ * warning$
-}
-FUNCTION {author.sort}
-{ author empty$
-    { key empty$
-        { "author" sort.warning
-          ""
-        }
-        { key sortify }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-FUNCTION {author.editor.sort}
-{ author empty$
-    { editor empty$
-        { key empty$
-            { "author, editor," sort.warning
-              ""
-            }
-            { key sortify }
-          if$
-        }
-        { editor sort.format.names }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-FUNCTION {author.organization.sort}
-{ author empty$
-    { organization empty$
-        { key empty$
-            { "author, organization," sort.warning
-              ""
-            }
-            { key sortify }
-          if$
-        }
-        { "The " #4 organization chop.word sortify }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-FUNCTION {editor.organization.sort}
-{ editor empty$
-    { organization empty$
-        { key empty$
-            { "editor, organization," sort.warning
-              ""
-            }
-            { key sortify }
-          if$
-        }
-        { "The " #4 organization chop.word sortify }
-      if$
-    }
-    { editor sort.format.names }
-  if$
-}
-FUNCTION {presort} {
-    calc.label
-    label #20 rpad
-    type$ "book" = type$ "inbook" = OR type$ "collection" = OR
-        'author.editor.sort
-        { type$ "proceedings" =
-            'editor.organization.sort
-            { type$ "manual" =
-                'author.organization.sort
-                'author.sort
-              if$
-            }
-          if$
-        }
-    if$
-    * " " *
-    title field.or.null sort.format.title *
-    #1 entry.max$ substring$
-    'sort.key$ :=
-}
-ITERATE {presort}
-
-SORT
-FUNCTION {write.with.newlines}
-{ 's :=  #1 'ptr :=
-  { s ptr #2 + #1 substring$ "" = NOT }
-  { s ptr #3 substring$ "^^M" =
-    { s #1 ptr #1 - substring$ write$ newline$
-      ptr #3 + 'ptr :=
-      s ptr global.max$ substring$ 's :=
-      #1 'ptr :=
-    }
-    { incr.ptr }
-    if$
-  }
-  while$
-  s write$ newline$
-}
-FUNCTION {begin.bib} {
-    preamble$ empty$
-        'skip$
-        { preamble$ write.with.newlines }
-    if$
-    "% \bib, bibdiv, biblist are defined by the amsrefs package."
-        write$ newline$
-    "\begin{bibdiv}" write$ newline$
-    "\begin{biblist}" write$ newline$
-}
-FUNCTION {end.bib} {
-    newline$
-    "\end{biblist}" write$ newline$
-    "\end{bibdiv}" write$ newline$
-}
-EXECUTE {begin.bib}
-
-ITERATE {call.type$}
-
-EXECUTE {end.bib}
-%% 
-%%
-%% End of file `amsra.bst'.
diff --git a/Master/texmf-dist/bibtex/bst/amslatex/amsrn.bst b/Master/texmf-dist/bibtex/bst/amslatex/amsrn.bst
deleted file mode 100644
index 505f15b6d2d..00000000000
--- a/Master/texmf-dist/bibtex/bst/amslatex/amsrn.bst
+++ /dev/null
@@ -1,660 +0,0 @@
-%%
-%% This is file `amsrn.bst',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsxport.dtx  (with options: `bst,sort,plain')
-%% 
-%%% ====================================================================
-%%% @BibTeX-source-file{
-%%%   filename  = "amsxport.dtx",
-%%%   version   = "2.00",
-%%%   date      = "2004/06/28",
-%%%   time      = "14:50:12 EDT",
-%%%   author    = "Michael J Downes",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support at ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "The BibTeX style file amsxport.bst produces .bbl
-%%%                entries where most of the database structure is
-%%%                retained. This is intended for processing by a smart
-%%%                bibliography package such as the amsrefs package.",
-%%%   checksum  = "40425 1822 6396 51551",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-ENTRY
-  {
-    address      institution  number       status
-    archive      isbn         organization subtitle
-    author       issn         pages        title
-    booktitle    journal      part         translator
-    chapter      key          pii          type
-    date         language     preprint     url
-    edition      meeting      publisher    volume
-    editor       month        review       xid
-    eprint       mrnumber     school       year
-    howpublished note         series
-  }
-  { }
-  { label }
-MACRO {jan} {"-01"}
-MACRO {feb} {"-02"}
-MACRO {mar} {"-03"}
-MACRO {apr} {"-04"}
-MACRO {may} {"-05"}
-MACRO {jun} {"-06"}
-MACRO {jul} {"-07"}
-MACRO {aug} {"-08"}
-MACRO {sep} {"-09"}
-MACRO {oct} {"-10"}
-MACRO {nov} {"-11"}
-MACRO {dec} {"-12"}
-STRINGS { p s t l }
-INTEGERS { len ptr }
-
-FUNCTION {NOT} { { #0 } { #1 } if$ }
-
-FUNCTION {AND} { 'skip$ { pop$ #0 } if$ }
-
-FUNCTION {OR} { { pop$ #1 } 'skip$ if$ }
-
-FUNCTION {TRUE} { #1 }
-
-FUNCTION {FALSE} { #0 }
-
-FUNCTION {incr.ptr} { ptr #1 + 'ptr := }
-
-FUNCTION {current.char} { ptr #1 substring$ }
-FUNCTION {copy.two.chars} { t * incr.ptr s current.char * incr.ptr }
-
-FUNCTION {is.digit} {
-    chr.to.int$
-    duplicate$
-    "0" chr.to.int$ #1 - >
-    swap$
-    "9" chr.to.int$ #1 + <
-    AND
-}
-
-FUNCTION {is.lowercase.letter} {
-    chr.to.int$ duplicate$
-    "a" chr.to.int$ #1 - >
-    swap$
-    "z" chr.to.int$ #1 + <
-    AND
-}
-FUNCTION {is.uppercase.letter} {
-    chr.to.int$ duplicate$
-    "A" chr.to.int$ #1 - >
-    swap$
-    "Z" chr.to.int$ #1 + <
-    AND
-}
-FUNCTION {is.letter} {
-    duplicate$
-    is.lowercase.letter
-        { pop$ TRUE }
-        { is.uppercase.letter }
-    if$
-}
-FUNCTION {skip.accent} { pop$ incr.ptr }
-FUNCTION {strip.label} {
-    's :=
-    #1 'ptr :=
-    ""
-    { s ptr #1 substring$ duplicate$ empty$ NOT }
-        { duplicate$ is.letter
-            { * }
-            { duplicate$ "\" =
-                { skip.accent }
-                'pop$
-              if$
-            }
-          if$
-          incr.ptr
-        }
-    while$
-    pop$
-}
-FUNCTION {sortify} {
-    purify$
-    "l" change.case$
-}
-FUNCTION {rpad} {
-    swap$
-    'l :=
-    l text.length$ - 'len :=
-    { len #0 > }
-        {
-            l " " * 'l :=
-            len #1 - 'len :=
-        }
-    while$
-    l
-}
-FUNCTION {lpad} {
-    swap$
-    'l :=
-    l text.length$ - 'len :=
-    { len #0 > }
-        {
-            " " l * 'l :=
-            len #1 - 'len :=
-        }
-    while$
-    l
-}
-FUNCTION {field.or.null} {
-    duplicate$ empty$
-        { pop$ "" }
-        'skip$
-    if$
-}
-FUNCTION {missing.or.empty} { duplicate$ missing$ swap$ empty$ OR }
-
-FUNCTION {append.ndash.and.skip.hyphens} {
-    "\ndash " *
-    incr.ptr
-    { s current.char "-" = }
-        { incr.ptr }
-    while$
-}
-FUNCTION {n.dashify} {
-    's :=
-    #1 'ptr :=
-    ""
-    { s current.char 't :=  t "" = NOT }
-      { t "\" =
-          { copy.two.chars }
-          { t "-" =
-              { append.ndash.and.skip.hyphens }
-              { t * incr.ptr }
-            if$
-          }
-        if$
-      }
-    while$
-}
-FUNCTION {missing.warning} {
-    "missing " swap$ * " in " * cite$ * warning$
-}
-
-INTEGERS { string.ptr }
-
-FUNCTION {string.length} {
-    #1 'string.ptr :=
-    { duplicate$ string.ptr #1 substring$ "" = 'FALSE 'TRUE if$ }
-        { string.ptr #1 + 'string.ptr := }
-    while$
-    pop$
-    string.ptr #1 -
-}
-FUNCTION {format.title}{
-    duplicate$
-    missing.or.empty
-        { pop$ "" }
-        { "t" change.case$ }
-    if$
-}
-FUNCTION {start.field} {
-    #12 lpad "={" * write$
-}
-FUNCTION {fin.field} { "}," write$ newline$ }
-
-FUNCTION {write.field} {
-    duplicate$
-    missing$
-        { pop$ missing.warning }
-        { duplicate$ empty$
-            { pop$ missing.warning }
-            { swap$ start.field write$ fin.field }
-          if$
-        }
-    if$
-}
-FUNCTION {optional.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        { swap$ start.field write$ fin.field }
-    if$
-}
-FUNCTION {optional.title.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        { format.title swap$ start.field write$ fin.field }
-    if$
-}
-FUNCTION {optional.pages.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        { swap$ start.field
-          n.dashify
-          write$ fin.field
-        }
-    if$
-}
-FUNCTION {optional.mr.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        {
-          swap$ start.field
-          "\MR{" swap$ * "}" * write$ fin.field
-        }
-    if$
-}
-FUNCTION {remove.ordinal.suffix} {
-    's :=
-    s string.length 'len :=
-    #1 'ptr :=
-    { ptr len < s ptr #1 substring$ is.digit AND }
-        'incr.ptr
-    while$
-    s ptr global.max$ substring$ 'p :=
-    p "st" =
-        { TRUE }
-        { p "nd" =
-            { TRUE }
-            { p "rd" =
-                { TRUE }
-                { p "th" =
-                    { TRUE }
-                    { FALSE }
-                  if$
-                }
-              if$
-            }
-          if$
-        }
-    if$
-    { s #1 ptr #1 - substring$ }
-    { s }
-  if$
-}
-FUNCTION {optional.edition.field} {
-    duplicate$ missing.or.empty
-        { pop$ pop$ }
-        { swap$ start.field
-          remove.ordinal.suffix
-          write$ fin.field
-        }
-    if$
-}
-INTEGERS { nameptr numnames namesleft }
-STRINGS { namelist fieldname }
-FUNCTION {format.name} { "{vv~}{ll}{, ff}{, jj}" format.name$ }
-
-FUNCTION {optional.name.field}{
-    duplicate$ missing.or.empty
-        { pop$ pop$ }
-        { swap$ 'fieldname :=
-          duplicate$ num.names$
-          'namesleft :=
-          #1 'ptr :=
-          { namesleft #0 > }
-            { fieldname start.field
-              duplicate$ ptr format.name write$
-              fin.field
-              ptr #1 + 'ptr :=
-              namesleft #1 - 'namesleft :=
-            }
-          while$
-        pop$
-        }
-    if$
-}
-FUNCTION {assemble.date.field}
-{ date missing$
-    { year missing.or.empty
-        { status missing.or.empty
-            { "No year or other date information for "
-               cite$ * warning$ }
-            'skip$
-          if$
-          "status"
-        }
-        { year month missing$ { "" } { month } if$ * }
-      if$
-    }
-    { date }
-  if$
-  duplicate$ "status" =
-    { pop$ pop$ }
-    { swap$ start.field write$ fin.field }
-  if$
-}
-FUNCTION {optional.journal.field} {
-    duplicate$ missing.or.empty
-        { pop$ pop$ }
-        {
-            's :=
-            start.field
-            #1 'ptr :=
-            s current.char is.lowercase.letter
-                {
-                    s "/" * 's :=
-                    { s ptr #1 substring$ "/" = NOT }
-                        { incr.ptr }
-                    while$
-                    s ptr #1 + #1 substring$ empty$
-                        { s #1 ptr #1 - substring$ }
-                        {
-                            s #1 ptr #1 - substring$
-                            write$
-                            fin.field
-                            "ISSN" start.field
-                            s ptr #1 + #9 substring$
-                        }
-                    if$
-                }
-                { s }
-            if$
-            write$
-            fin.field
-        }
-    if$
-}
-FUNCTION {optional.type.field}
-{ duplicate$ missing.or.empty
-    { type$ "mastersthesis" = { "Master's Thesis" }
-        { type$ "phdthesis" = { "Ph.D. Thesis" }
-          { "" } if$ } if$
-      swap$ pop$
-    }
-    'skip$
-  if$
-  duplicate$ empty$
-    { pop$ pop$ }
-    { swap$ start.field write$ fin.field }
-  if$
-}
-FUNCTION {url.note.status.review} {
-    "url" url optional.field
-    "note" note optional.field
-    "status" status optional.field
-    "review" review optional.field
-    "review" mrnumber optional.mr.field
-}
-FUNCTION {start.entry} {
-    newline$
-    "\bib{" cite$ * "}{" *
-    type$ "mastersthesis" = type$ "phdthesis" =  OR
-        { "thesis" }
-        { type$ }
-    if$
-    * "}{" * write$
-    newline$
-}
-FUNCTION {fin.entry} {
-    "}" write$
-    newline$
-}
-FUNCTION {article} {
-    start.entry
-    "author" author optional.name.field
-    "translator" translator optional.name.field
-    "title" title format.title write.field
-    "subtitle" subtitle optional.title.field
-    "language" language optional.field
-    "organization" organization optional.field
-    "how" howpublished optional.field
-    "date" assemble.date.field
-    "ISSN" issn optional.field
-    "journal" journal optional.journal.field
-    "volume" volume optional.field
-    "number" number optional.field
-    "pages" pages optional.pages.field
-    "PII" pii optional.field
-    "archive" archive optional.field
-    "eprint" eprint optional.field
-    "preprint" preprint optional.field
-    url.note.status.review
-    fin.entry
-}
-FUNCTION {inproceedings} {
-    start.entry
-    "author" author optional.name.field
-    "translator" translator optional.name.field
-    "title" title format.title write.field
-    "subtitle" subtitle optional.title.field
-    "language" language optional.field
-    "organization" organization optional.field
-    "how" howpublished optional.field
-    "date" assemble.date.field
-    "xid" xid optional.field
-    "conference" meeting optional.field
-    "booktitle" booktitle optional.title.field
-    "edition" edition optional.edition.field
-    "editor" editor optional.name.field
-    "series" series optional.field
-    "volume" volume optional.field
-    "publisher" publisher optional.field
-    "address" address optional.field
-    "pages" pages optional.pages.field
-    url.note.status.review
-    fin.entry
-}
-FUNCTION {inbook} { inproceedings }
-FUNCTION {incollection} { inproceedings }
-FUNCTION {conference} { inproceedings }
-FUNCTION {book} {
-    start.entry
-    "author" author optional.name.field
-    "editor" editor optional.name.field
-    "translator" translator optional.name.field
-    "title" title missing$ { booktitle } { title } if$
-       format.title write.field
-    "subtitle" subtitle optional.title.field
-    "type" type optional.type.field
-    "language" language optional.field
-    "conference" meeting optional.field
-    "edition" edition optional.edition.field
-    "series" series optional.field
-    "publisher" publisher optional.field
-    organization missing.or.empty
-        { "institution" institution optional.field }
-        { "organization" organization optional.field }
-    if$
-    "address" address optional.field
-    "how" howpublished optional.field
-    "date" year write.field
-    "volume" volume optional.field
-    "number" number optional.field
-    "ISBN" isbn optional.field
-    url.note.status.review
-    fin.entry
-}
-FUNCTION {booklet} { book }
-FUNCTION {manual} { book }
-FUNCTION {mastersthesis} { book }
-
-FUNCTION {phdthesis} { book }
-
-FUNCTION {proceedings} { book }
-
-FUNCTION {collection} { book }
-
-FUNCTION {techreport} { book }
-
-FUNCTION {unpublished} { book }
-
-FUNCTION {misc} { book }
-
-FUNCTION {default.type} { misc }
-
-
-READ
-
-FUNCTION {chop.word} {
-    's :=
-    'len :=
-    s #1 len substring$ =
-        { s len #1 + global.max$ substring$ }
-        's
-    if$
-}
-FUNCTION {sort.format.title} {
-    't :=
-    "A " #2
-      "An " #3
-        "The " #4 t chop.word
-      chop.word
-    chop.word
-    sortify
-    #1 global.max$ substring$
-}
-FUNCTION {sort.format.names} {
-    's :=
-    #1 'ptr :=
-    ""
-    s num.names$ 'numnames :=
-    numnames 'namesleft :=
-      { namesleft #0 > }
-      { ptr #1 >
-          { " " * }
-          'skip$
-        if$
-        s ptr "{ll}{ ff}{ jj}" format.name$ 't :=
-        ptr numnames = t "others" = AND
-          { "et al" }
-          { t sortify }
-        if$
-        #20 rpad *
-        ptr #1 + 'ptr :=
-        namesleft #1 - 'namesleft :=
-      }
-    while$
-}
-FUNCTION {sort.warning} {
-    "to sort, need " swap$ * " or key in " * cite$ * warning$
-}
-FUNCTION {author.sort}
-{ author empty$
-    { key empty$
-        { "author" sort.warning
-          ""
-        }
-        { key sortify }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-FUNCTION {author.editor.sort}
-{ author empty$
-    { editor empty$
-        { key empty$
-            { "author, editor," sort.warning
-              ""
-            }
-            { key sortify }
-          if$
-        }
-        { editor sort.format.names }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-FUNCTION {author.organization.sort}
-{ author empty$
-    { organization empty$
-        { key empty$
-            { "author, organization," sort.warning
-              ""
-            }
-            { key sortify }
-          if$
-        }
-        { "The " #4 organization chop.word sortify }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-FUNCTION {editor.organization.sort}
-{ editor empty$
-    { organization empty$
-        { key empty$
-            { "editor, organization," sort.warning
-              ""
-            }
-            { key sortify }
-          if$
-        }
-        { "The " #4 organization chop.word sortify }
-      if$
-    }
-    { editor sort.format.names }
-  if$
-}
-FUNCTION {presort} {
-    type$ "book" = type$ "inbook" = OR type$ "collection" = OR
-        'author.editor.sort
-        { type$ "proceedings" =
-            'editor.organization.sort
-            { type$ "manual" =
-                'author.organization.sort
-                'author.sort
-              if$
-            }
-          if$
-        }
-    if$
-    year field.or.null sortify #12 rpad * " " *
-    title field.or.null sort.format.title *
-    #1 entry.max$ substring$
-    'sort.key$ :=
-}
-ITERATE {presort}
-
-SORT
-FUNCTION {write.with.newlines}
-{ 's :=  #1 'ptr :=
-  { s ptr #2 + #1 substring$ "" = NOT }
-  { s ptr #3 substring$ "^^M" =
-    { s #1 ptr #1 - substring$ write$ newline$
-      ptr #3 + 'ptr :=
-      s ptr global.max$ substring$ 's :=
-      #1 'ptr :=
-    }
-    { incr.ptr }
-    if$
-  }
-  while$
-  s write$ newline$
-}
-FUNCTION {begin.bib} {
-    preamble$ empty$
-        'skip$
-        { preamble$ write.with.newlines }
-    if$
-    "% \bib, bibdiv, biblist are defined by the amsrefs package."
-        write$ newline$
-    "\begin{bibdiv}" write$ newline$
-    "\begin{biblist}" write$ newline$
-}
-FUNCTION {end.bib} {
-    newline$
-    "\end{biblist}" write$ newline$
-    "\end{bibdiv}" write$ newline$
-}
-EXECUTE {begin.bib}
-
-ITERATE {call.type$}
-
-EXECUTE {end.bib}
-%% 
-%%
-%% End of file `amsrn.bst'.
diff --git a/Master/texmf-dist/bibtex/bst/amslatex/amsrs.bst b/Master/texmf-dist/bibtex/bst/amslatex/amsrs.bst
deleted file mode 100644
index 4f090f7af73..00000000000
--- a/Master/texmf-dist/bibtex/bst/amslatex/amsrs.bst
+++ /dev/null
@@ -1,773 +0,0 @@
-%%
-%% This is file `amsrs.bst',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsxport.dtx  (with options: `bst,sort,short')
-%% 
-%%% ====================================================================
-%%% @BibTeX-source-file{
-%%%   filename  = "amsxport.dtx",
-%%%   version   = "2.00",
-%%%   date      = "2004/06/28",
-%%%   time      = "14:50:12 EDT",
-%%%   author    = "Michael J Downes",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support at ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "The BibTeX style file amsxport.bst produces .bbl
-%%%                entries where most of the database structure is
-%%%                retained. This is intended for processing by a smart
-%%%                bibliography package such as the amsrefs package.",
-%%%   checksum  = "40425 1822 6396 51551",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-ENTRY
-  {
-    address      institution  number       status
-    archive      isbn         organization subtitle
-    author       issn         pages        title
-    booktitle    journal      part         translator
-    chapter      key          pii          type
-    date         language     preprint     url
-    edition      meeting      publisher    volume
-    editor       month        review       xid
-    eprint       mrnumber     school       year
-    howpublished note         series
-  }
-  { }
-  { label }
-MACRO {jan} {"-01"}
-MACRO {feb} {"-02"}
-MACRO {mar} {"-03"}
-MACRO {apr} {"-04"}
-MACRO {may} {"-05"}
-MACRO {jun} {"-06"}
-MACRO {jul} {"-07"}
-MACRO {aug} {"-08"}
-MACRO {sep} {"-09"}
-MACRO {oct} {"-10"}
-MACRO {nov} {"-11"}
-MACRO {dec} {"-12"}
-STRINGS { p s t l }
-INTEGERS { len ptr }
-
-FUNCTION {NOT} { { #0 } { #1 } if$ }
-
-FUNCTION {AND} { 'skip$ { pop$ #0 } if$ }
-
-FUNCTION {OR} { { pop$ #1 } 'skip$ if$ }
-
-FUNCTION {TRUE} { #1 }
-
-FUNCTION {FALSE} { #0 }
-
-FUNCTION {incr.ptr} { ptr #1 + 'ptr := }
-
-FUNCTION {current.char} { ptr #1 substring$ }
-FUNCTION {copy.two.chars} { t * incr.ptr s current.char * incr.ptr }
-
-FUNCTION {is.digit} {
-    chr.to.int$
-    duplicate$
-    "0" chr.to.int$ #1 - >
-    swap$
-    "9" chr.to.int$ #1 + <
-    AND
-}
-
-FUNCTION {is.lowercase.letter} {
-    chr.to.int$ duplicate$
-    "a" chr.to.int$ #1 - >
-    swap$
-    "z" chr.to.int$ #1 + <
-    AND
-}
-FUNCTION {is.uppercase.letter} {
-    chr.to.int$ duplicate$
-    "A" chr.to.int$ #1 - >
-    swap$
-    "Z" chr.to.int$ #1 + <
-    AND
-}
-FUNCTION {is.letter} {
-    duplicate$
-    is.lowercase.letter
-        { pop$ TRUE }
-        { is.uppercase.letter }
-    if$
-}
-FUNCTION {skip.accent} { pop$ incr.ptr }
-FUNCTION {strip.label} {
-    's :=
-    #1 'ptr :=
-    ""
-    { s ptr #1 substring$ duplicate$ empty$ NOT }
-        { duplicate$ is.letter
-            { * }
-            { duplicate$ "\" =
-                { skip.accent }
-                'pop$
-              if$
-            }
-          if$
-          incr.ptr
-        }
-    while$
-    pop$
-}
-FUNCTION {sortify} {
-    purify$
-    "l" change.case$
-}
-FUNCTION {rpad} {
-    swap$
-    'l :=
-    l text.length$ - 'len :=
-    { len #0 > }
-        {
-            l " " * 'l :=
-            len #1 - 'len :=
-        }
-    while$
-    l
-}
-FUNCTION {lpad} {
-    swap$
-    'l :=
-    l text.length$ - 'len :=
-    { len #0 > }
-        {
-            " " l * 'l :=
-            len #1 - 'len :=
-        }
-    while$
-    l
-}
-FUNCTION {field.or.null} {
-    duplicate$ empty$
-        { pop$ "" }
-        'skip$
-    if$
-}
-FUNCTION {missing.or.empty} { duplicate$ missing$ swap$ empty$ OR }
-
-FUNCTION {append.ndash.and.skip.hyphens} {
-    "\ndash " *
-    incr.ptr
-    { s current.char "-" = }
-        { incr.ptr }
-    while$
-}
-FUNCTION {n.dashify} {
-    's :=
-    #1 'ptr :=
-    ""
-    { s current.char 't :=  t "" = NOT }
-      { t "\" =
-          { copy.two.chars }
-          { t "-" =
-              { append.ndash.and.skip.hyphens }
-              { t * incr.ptr }
-            if$
-          }
-        if$
-      }
-    while$
-}
-FUNCTION {missing.warning} {
-    "missing " swap$ * " in " * cite$ * warning$
-}
-
-INTEGERS { string.ptr }
-
-FUNCTION {string.length} {
-    #1 'string.ptr :=
-    { duplicate$ string.ptr #1 substring$ "" = 'FALSE 'TRUE if$ }
-        { string.ptr #1 + 'string.ptr := }
-    while$
-    pop$
-    string.ptr #1 -
-}
-FUNCTION {format.title}{
-    duplicate$
-    missing.or.empty
-        { pop$ "" }
-        { "t" change.case$ }
-    if$
-}
-FUNCTION {start.field} {
-    #12 lpad "={" * write$
-}
-FUNCTION {fin.field} { "}," write$ newline$ }
-
-FUNCTION {write.field} {
-    duplicate$
-    missing$
-        { pop$ missing.warning }
-        { duplicate$ empty$
-            { pop$ missing.warning }
-            { swap$ start.field write$ fin.field }
-          if$
-        }
-    if$
-}
-FUNCTION {optional.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        { swap$ start.field write$ fin.field }
-    if$
-}
-FUNCTION {optional.title.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        { format.title swap$ start.field write$ fin.field }
-    if$
-}
-FUNCTION {optional.pages.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        { swap$ start.field
-          n.dashify
-          write$ fin.field
-        }
-    if$
-}
-FUNCTION {optional.mr.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        {
-          swap$ start.field
-          "\MR{" swap$ * "}" * write$ fin.field
-        }
-    if$
-}
-FUNCTION {remove.ordinal.suffix} {
-    's :=
-    s string.length 'len :=
-    #1 'ptr :=
-    { ptr len < s ptr #1 substring$ is.digit AND }
-        'incr.ptr
-    while$
-    s ptr global.max$ substring$ 'p :=
-    p "st" =
-        { TRUE }
-        { p "nd" =
-            { TRUE }
-            { p "rd" =
-                { TRUE }
-                { p "th" =
-                    { TRUE }
-                    { FALSE }
-                  if$
-                }
-              if$
-            }
-          if$
-        }
-    if$
-    { s #1 ptr #1 - substring$ }
-    { s }
-  if$
-}
-FUNCTION {optional.edition.field} {
-    duplicate$ missing.or.empty
-        { pop$ pop$ }
-        { swap$ start.field
-          remove.ordinal.suffix
-          write$ fin.field
-        }
-    if$
-}
-INTEGERS { nameptr numnames namesleft }
-STRINGS { namelist fieldname }
-FUNCTION {format.name} { "{vv~}{ll}{, ff}{, jj}" format.name$ }
-
-FUNCTION {optional.name.field}{
-    duplicate$ missing.or.empty
-        { pop$ pop$ }
-        { swap$ 'fieldname :=
-          duplicate$ num.names$
-          'namesleft :=
-          #1 'ptr :=
-          { namesleft #0 > }
-            { fieldname start.field
-              duplicate$ ptr format.name write$
-              fin.field
-              ptr #1 + 'ptr :=
-              namesleft #1 - 'namesleft :=
-            }
-          while$
-        pop$
-        }
-    if$
-}
-FUNCTION {assemble.date.field}
-{ date missing$
-    { year missing.or.empty
-        { status missing.or.empty
-            { "No year or other date information for "
-               cite$ * warning$ }
-            'skip$
-          if$
-          "status"
-        }
-        { year month missing$ { "" } { month } if$ * }
-      if$
-    }
-    { date }
-  if$
-  duplicate$ "status" =
-    { pop$ pop$ }
-    { swap$ start.field write$ fin.field }
-  if$
-}
-FUNCTION {optional.journal.field} {
-    duplicate$ missing.or.empty
-        { pop$ pop$ }
-        {
-            's :=
-            start.field
-            #1 'ptr :=
-            s current.char is.lowercase.letter
-                {
-                    s "/" * 's :=
-                    { s ptr #1 substring$ "/" = NOT }
-                        { incr.ptr }
-                    while$
-                    s ptr #1 + #1 substring$ empty$
-                        { s #1 ptr #1 - substring$ }
-                        {
-                            s #1 ptr #1 - substring$
-                            write$
-                            fin.field
-                            "ISSN" start.field
-                            s ptr #1 + #9 substring$
-                        }
-                    if$
-                }
-                { s }
-            if$
-            write$
-            fin.field
-        }
-    if$
-}
-FUNCTION {optional.type.field}
-{ duplicate$ missing.or.empty
-    { type$ "mastersthesis" = { "Master's Thesis" }
-        { type$ "phdthesis" = { "Ph.D. Thesis" }
-          { "" } if$ } if$
-      swap$ pop$
-    }
-    'skip$
-  if$
-  duplicate$ empty$
-    { pop$ pop$ }
-    { swap$ start.field write$ fin.field }
-  if$
-}
-FUNCTION {url.note.status.review} {
-    "url" url optional.field
-    "note" note optional.field
-    "status" status optional.field
-    "review" review optional.field
-    "review" mrnumber optional.mr.field
-}
-FUNCTION {start.entry} {
-    newline$
-    "\bib{" cite$ * "}{" *
-    type$ "mastersthesis" = type$ "phdthesis" =  OR
-        { "thesis" }
-        { type$ }
-    if$
-    * "}{" * write$
-    newline$
-}
-FUNCTION {fin.entry} {
-    "}" write$
-    newline$
-}
-FUNCTION {article} {
-    start.entry
-    "author" author optional.name.field
-    "translator" translator optional.name.field
-    "title" title format.title write.field
-    "subtitle" subtitle optional.title.field
-    "language" language optional.field
-    "organization" organization optional.field
-    "how" howpublished optional.field
-    "date" assemble.date.field
-    "ISSN" issn optional.field
-    "journal" journal optional.journal.field
-    "volume" volume optional.field
-    "number" number optional.field
-    "pages" pages optional.pages.field
-    "PII" pii optional.field
-    "archive" archive optional.field
-    "eprint" eprint optional.field
-    "preprint" preprint optional.field
-    url.note.status.review
-    fin.entry
-}
-FUNCTION {inproceedings} {
-    start.entry
-    "author" author optional.name.field
-    "translator" translator optional.name.field
-    "title" title format.title write.field
-    "subtitle" subtitle optional.title.field
-    "language" language optional.field
-    "organization" organization optional.field
-    "how" howpublished optional.field
-    "date" assemble.date.field
-    "xid" xid optional.field
-    "conference" meeting optional.field
-    "booktitle" booktitle optional.title.field
-    "edition" edition optional.edition.field
-    "editor" editor optional.name.field
-    "series" series optional.field
-    "volume" volume optional.field
-    "publisher" publisher optional.field
-    "address" address optional.field
-    "pages" pages optional.pages.field
-    url.note.status.review
-    fin.entry
-}
-FUNCTION {inbook} { inproceedings }
-FUNCTION {incollection} { inproceedings }
-FUNCTION {conference} { inproceedings }
-FUNCTION {book} {
-    start.entry
-    "author" author optional.name.field
-    "editor" editor optional.name.field
-    "translator" translator optional.name.field
-    "title" title missing$ { booktitle } { title } if$
-       format.title write.field
-    "subtitle" subtitle optional.title.field
-    "type" type optional.type.field
-    "language" language optional.field
-    "conference" meeting optional.field
-    "edition" edition optional.edition.field
-    "series" series optional.field
-    "publisher" publisher optional.field
-    organization missing.or.empty
-        { "institution" institution optional.field }
-        { "organization" organization optional.field }
-    if$
-    "address" address optional.field
-    "how" howpublished optional.field
-    "date" year write.field
-    "volume" volume optional.field
-    "number" number optional.field
-    "ISBN" isbn optional.field
-    url.note.status.review
-    fin.entry
-}
-FUNCTION {booklet} { book }
-FUNCTION {manual} { book }
-FUNCTION {mastersthesis} { book }
-
-FUNCTION {phdthesis} { book }
-
-FUNCTION {proceedings} { book }
-
-FUNCTION {collection} { book }
-
-FUNCTION {techreport} { book }
-
-FUNCTION {unpublished} { book }
-
-FUNCTION {misc} { book }
-
-FUNCTION {default.type} { misc }
-
-
-READ
-
-FUNCTION {chop.word} {
-    's :=
-    'len :=
-    s #1 len substring$ =
-        { s len #1 + global.max$ substring$ }
-        's
-    if$
-}
-FUNCTION {sort.format.title} {
-    't :=
-    "A " #2
-      "An " #3
-        "The " #4 t chop.word
-      chop.word
-    chop.word
-    sortify
-    #1 global.max$ substring$
-}
-FUNCTION {format.lab.names} {
-   's :=
-    s num.names$ 'numnames :=
-    numnames #1 >
-      { numnames #4 >
-          { #3 'namesleft := }
-          { numnames 'namesleft := }
-        if$
-        #1 'nameptr :=
-        ""
-          { namesleft #0 > }
-          { nameptr numnames =
-              { s nameptr "{ff }{vv }{ll}{ jj}" format.name$ "others" =
-                  { "{\etalchar{+}}" * }
-                  { s nameptr "{v{}}{l{}}" format.name$ * }
-                if$
-              }
-              { s nameptr "{v{}}{l{}}" format.name$ * }
-            if$
-            nameptr #1 + 'nameptr :=
-            namesleft #1 - 'namesleft :=
-          }
-        while$
-        numnames #4 >
-          { "{\etalchar{+}}" * }
-          'skip$
-        if$
-      }
-      { s #1 "{v{}}{l{}}" format.name$
-        duplicate$ text.length$ #2 <
-          { pop$ s #1 "{ll}" format.name$ #1 text.prefix$ }
-          'skip$
-        if$
-      }
-    if$
-}
-
-FUNCTION {author.key.label}
-{ author empty$
-    { key empty$
-{ cite$ #1 #3 substring$ }
-{ key #3 text.prefix$ }
-      if$
-    }
-    { author format.lab.names }
-  if$
-}
-
-FUNCTION {author.editor.key.label}
-{ author empty$
-    { editor empty$
-{ key empty$
-    { cite$ #1 #3 substring$ }
-    { key #3 text.prefix$ }
-  if$
-}
-{ editor format.lab.names }
-      if$
-    }
-    { author format.lab.names }
-  if$
-}
-
-FUNCTION {author.key.organization.label}
-{ author empty$
-    { key empty$
-{ organization empty$
-    { cite$ #1 #3 substring$ }
-    { "The " #4 organization chop.word #3 text.prefix$ }
-  if$
-}
-{ key #3 text.prefix$ }
-      if$
-    }
-    { author format.lab.names }
-  if$
-}
-
-FUNCTION {editor.key.organization.label}
-{ editor empty$
-    { key empty$
-{ organization empty$
-    { cite$ #1 #3 substring$ }
-    { "The " #4 organization chop.word #3 text.prefix$ }
-  if$
-}
-{ key #3 text.prefix$ }
-      if$
-    }
-    { editor format.lab.names }
-  if$
-}
-
-FUNCTION {calc.label}{
-    type$ "book" =  type$ "inbook" =  OR
-    'author.editor.key.label
-    { type$ "proceedings" =
-'editor.key.organization.label
-{ type$ "manual" =
-    'author.key.organization.label
-    'author.key.label
-  if$
-}
-      if$
-    }
-    if$
-    strip.label
-    sortify
-    'label :=
-}
-FUNCTION {sort.format.names} {
-    's :=
-    #1 'ptr :=
-    ""
-    s num.names$ 'numnames :=
-    numnames 'namesleft :=
-      { namesleft #0 > }
-      { ptr #1 >
-          { " " * }
-          'skip$
-        if$
-        s ptr "{ll}{ ff}{ jj}" format.name$ 't :=
-        ptr numnames = t "others" = AND
-          { "et al" }
-          { t sortify }
-        if$
-        #20 rpad *
-        ptr #1 + 'ptr :=
-        namesleft #1 - 'namesleft :=
-      }
-    while$
-}
-FUNCTION {sort.warning} {
-    "to sort, need " swap$ * " or key in " * cite$ * warning$
-}
-FUNCTION {author.sort}
-{ author empty$
-    { key empty$
-        { "author" sort.warning
-          ""
-        }
-        { key sortify }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-FUNCTION {author.editor.sort}
-{ author empty$
-    { editor empty$
-        { key empty$
-            { "author, editor," sort.warning
-              ""
-            }
-            { key sortify }
-          if$
-        }
-        { editor sort.format.names }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-FUNCTION {author.organization.sort}
-{ author empty$
-    { organization empty$
-        { key empty$
-            { "author, organization," sort.warning
-              ""
-            }
-            { key sortify }
-          if$
-        }
-        { "The " #4 organization chop.word sortify }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-FUNCTION {editor.organization.sort}
-{ editor empty$
-    { organization empty$
-        { key empty$
-            { "editor, organization," sort.warning
-              ""
-            }
-            { key sortify }
-          if$
-        }
-        { "The " #4 organization chop.word sortify }
-      if$
-    }
-    { editor sort.format.names }
-  if$
-}
-FUNCTION {presort} {
-    calc.label
-    label #20 rpad
-    type$ "book" = type$ "inbook" = OR type$ "collection" = OR
-        'author.editor.sort
-        { type$ "proceedings" =
-            'editor.organization.sort
-            { type$ "manual" =
-                'author.organization.sort
-                'author.sort
-              if$
-            }
-          if$
-        }
-    if$
-    * " " *
-    year field.or.null sortify #12 rpad * " " *
-    title field.or.null sort.format.title *
-    #1 entry.max$ substring$
-    'sort.key$ :=
-}
-ITERATE {presort}
-
-SORT
-FUNCTION {write.with.newlines}
-{ 's :=  #1 'ptr :=
-  { s ptr #2 + #1 substring$ "" = NOT }
-  { s ptr #3 substring$ "^^M" =
-    { s #1 ptr #1 - substring$ write$ newline$
-      ptr #3 + 'ptr :=
-      s ptr global.max$ substring$ 's :=
-      #1 'ptr :=
-    }
-    { incr.ptr }
-    if$
-  }
-  while$
-  s write$ newline$
-}
-FUNCTION {begin.bib} {
-    preamble$ empty$
-        'skip$
-        { preamble$ write.with.newlines }
-    if$
-    "% \bib, bibdiv, biblist are defined by the amsrefs package."
-        write$ newline$
-    "\begin{bibdiv}" write$ newline$
-    "\begin{biblist}" write$ newline$
-}
-FUNCTION {end.bib} {
-    newline$
-    "\end{biblist}" write$ newline$
-    "\end{bibdiv}" write$ newline$
-}
-EXECUTE {begin.bib}
-
-ITERATE {call.type$}
-
-EXECUTE {end.bib}
-%% 
-%%
-%% End of file `amsrs.bst'.
diff --git a/Master/texmf-dist/bibtex/bst/amslatex/amsru.bst b/Master/texmf-dist/bibtex/bst/amslatex/amsru.bst
deleted file mode 100644
index 28371381afb..00000000000
--- a/Master/texmf-dist/bibtex/bst/amslatex/amsru.bst
+++ /dev/null
@@ -1,536 +0,0 @@
-%%
-%% This is file `amsru.bst',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsxport.dtx  (with options: `bst,plain')
-%% 
-%%% ====================================================================
-%%% @BibTeX-source-file{
-%%%   filename  = "amsxport.dtx",
-%%%   version   = "2.00",
-%%%   date      = "2004/06/28",
-%%%   time      = "14:50:12 EDT",
-%%%   author    = "Michael J Downes",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support at ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "The BibTeX style file amsxport.bst produces .bbl
-%%%                entries where most of the database structure is
-%%%                retained. This is intended for processing by a smart
-%%%                bibliography package such as the amsrefs package.",
-%%%   checksum  = "40425 1822 6396 51551",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-ENTRY
-  {
-    address      institution  number       status
-    archive      isbn         organization subtitle
-    author       issn         pages        title
-    booktitle    journal      part         translator
-    chapter      key          pii          type
-    date         language     preprint     url
-    edition      meeting      publisher    volume
-    editor       month        review       xid
-    eprint       mrnumber     school       year
-    howpublished note         series
-  }
-  { }
-  { label }
-MACRO {jan} {"-01"}
-MACRO {feb} {"-02"}
-MACRO {mar} {"-03"}
-MACRO {apr} {"-04"}
-MACRO {may} {"-05"}
-MACRO {jun} {"-06"}
-MACRO {jul} {"-07"}
-MACRO {aug} {"-08"}
-MACRO {sep} {"-09"}
-MACRO {oct} {"-10"}
-MACRO {nov} {"-11"}
-MACRO {dec} {"-12"}
-STRINGS { p s t l }
-INTEGERS { len ptr }
-
-FUNCTION {NOT} { { #0 } { #1 } if$ }
-
-FUNCTION {AND} { 'skip$ { pop$ #0 } if$ }
-
-FUNCTION {OR} { { pop$ #1 } 'skip$ if$ }
-
-FUNCTION {TRUE} { #1 }
-
-FUNCTION {FALSE} { #0 }
-
-FUNCTION {incr.ptr} { ptr #1 + 'ptr := }
-
-FUNCTION {current.char} { ptr #1 substring$ }
-FUNCTION {copy.two.chars} { t * incr.ptr s current.char * incr.ptr }
-
-FUNCTION {is.digit} {
-    chr.to.int$
-    duplicate$
-    "0" chr.to.int$ #1 - >
-    swap$
-    "9" chr.to.int$ #1 + <
-    AND
-}
-
-FUNCTION {is.lowercase.letter} {
-    chr.to.int$ duplicate$
-    "a" chr.to.int$ #1 - >
-    swap$
-    "z" chr.to.int$ #1 + <
-    AND
-}
-FUNCTION {is.uppercase.letter} {
-    chr.to.int$ duplicate$
-    "A" chr.to.int$ #1 - >
-    swap$
-    "Z" chr.to.int$ #1 + <
-    AND
-}
-FUNCTION {is.letter} {
-    duplicate$
-    is.lowercase.letter
-        { pop$ TRUE }
-        { is.uppercase.letter }
-    if$
-}
-FUNCTION {skip.accent} { pop$ incr.ptr }
-FUNCTION {strip.label} {
-    's :=
-    #1 'ptr :=
-    ""
-    { s ptr #1 substring$ duplicate$ empty$ NOT }
-        { duplicate$ is.letter
-            { * }
-            { duplicate$ "\" =
-                { skip.accent }
-                'pop$
-              if$
-            }
-          if$
-          incr.ptr
-        }
-    while$
-    pop$
-}
-FUNCTION {sortify} {
-    purify$
-    "l" change.case$
-}
-FUNCTION {rpad} {
-    swap$
-    'l :=
-    l text.length$ - 'len :=
-    { len #0 > }
-        {
-            l " " * 'l :=
-            len #1 - 'len :=
-        }
-    while$
-    l
-}
-FUNCTION {lpad} {
-    swap$
-    'l :=
-    l text.length$ - 'len :=
-    { len #0 > }
-        {
-            " " l * 'l :=
-            len #1 - 'len :=
-        }
-    while$
-    l
-}
-FUNCTION {field.or.null} {
-    duplicate$ empty$
-        { pop$ "" }
-        'skip$
-    if$
-}
-FUNCTION {missing.or.empty} { duplicate$ missing$ swap$ empty$ OR }
-
-FUNCTION {append.ndash.and.skip.hyphens} {
-    "\ndash " *
-    incr.ptr
-    { s current.char "-" = }
-        { incr.ptr }
-    while$
-}
-FUNCTION {n.dashify} {
-    's :=
-    #1 'ptr :=
-    ""
-    { s current.char 't :=  t "" = NOT }
-      { t "\" =
-          { copy.two.chars }
-          { t "-" =
-              { append.ndash.and.skip.hyphens }
-              { t * incr.ptr }
-            if$
-          }
-        if$
-      }
-    while$
-}
-FUNCTION {missing.warning} {
-    "missing " swap$ * " in " * cite$ * warning$
-}
-
-INTEGERS { string.ptr }
-
-FUNCTION {string.length} {
-    #1 'string.ptr :=
-    { duplicate$ string.ptr #1 substring$ "" = 'FALSE 'TRUE if$ }
-        { string.ptr #1 + 'string.ptr := }
-    while$
-    pop$
-    string.ptr #1 -
-}
-FUNCTION {format.title}{
-    duplicate$
-    missing.or.empty
-        { pop$ "" }
-        { "t" change.case$ }
-    if$
-}
-FUNCTION {start.field} {
-    #12 lpad "={" * write$
-}
-FUNCTION {fin.field} { "}," write$ newline$ }
-
-FUNCTION {write.field} {
-    duplicate$
-    missing$
-        { pop$ missing.warning }
-        { duplicate$ empty$
-            { pop$ missing.warning }
-            { swap$ start.field write$ fin.field }
-          if$
-        }
-    if$
-}
-FUNCTION {optional.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        { swap$ start.field write$ fin.field }
-    if$
-}
-FUNCTION {optional.title.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        { format.title swap$ start.field write$ fin.field }
-    if$
-}
-FUNCTION {optional.pages.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        { swap$ start.field
-          n.dashify
-          write$ fin.field
-        }
-    if$
-}
-FUNCTION {optional.mr.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        {
-          swap$ start.field
-          "\MR{" swap$ * "}" * write$ fin.field
-        }
-    if$
-}
-FUNCTION {remove.ordinal.suffix} {
-    's :=
-    s string.length 'len :=
-    #1 'ptr :=
-    { ptr len < s ptr #1 substring$ is.digit AND }
-        'incr.ptr
-    while$
-    s ptr global.max$ substring$ 'p :=
-    p "st" =
-        { TRUE }
-        { p "nd" =
-            { TRUE }
-            { p "rd" =
-                { TRUE }
-                { p "th" =
-                    { TRUE }
-                    { FALSE }
-                  if$
-                }
-              if$
-            }
-          if$
-        }
-    if$
-    { s #1 ptr #1 - substring$ }
-    { s }
-  if$
-}
-FUNCTION {optional.edition.field} {
-    duplicate$ missing.or.empty
-        { pop$ pop$ }
-        { swap$ start.field
-          remove.ordinal.suffix
-          write$ fin.field
-        }
-    if$
-}
-INTEGERS { nameptr numnames namesleft }
-STRINGS { namelist fieldname }
-FUNCTION {format.name} { "{vv~}{ll}{, ff}{, jj}" format.name$ }
-
-FUNCTION {optional.name.field}{
-    duplicate$ missing.or.empty
-        { pop$ pop$ }
-        { swap$ 'fieldname :=
-          duplicate$ num.names$
-          'namesleft :=
-          #1 'ptr :=
-          { namesleft #0 > }
-            { fieldname start.field
-              duplicate$ ptr format.name write$
-              fin.field
-              ptr #1 + 'ptr :=
-              namesleft #1 - 'namesleft :=
-            }
-          while$
-        pop$
-        }
-    if$
-}
-FUNCTION {assemble.date.field}
-{ date missing$
-    { year missing.or.empty
-        { status missing.or.empty
-            { "No year or other date information for "
-               cite$ * warning$ }
-            'skip$
-          if$
-          "status"
-        }
-        { year month missing$ { "" } { month } if$ * }
-      if$
-    }
-    { date }
-  if$
-  duplicate$ "status" =
-    { pop$ pop$ }
-    { swap$ start.field write$ fin.field }
-  if$
-}
-FUNCTION {optional.journal.field} {
-    duplicate$ missing.or.empty
-        { pop$ pop$ }
-        {
-            's :=
-            start.field
-            #1 'ptr :=
-            s current.char is.lowercase.letter
-                {
-                    s "/" * 's :=
-                    { s ptr #1 substring$ "/" = NOT }
-                        { incr.ptr }
-                    while$
-                    s ptr #1 + #1 substring$ empty$
-                        { s #1 ptr #1 - substring$ }
-                        {
-                            s #1 ptr #1 - substring$
-                            write$
-                            fin.field
-                            "ISSN" start.field
-                            s ptr #1 + #9 substring$
-                        }
-                    if$
-                }
-                { s }
-            if$
-            write$
-            fin.field
-        }
-    if$
-}
-FUNCTION {optional.type.field}
-{ duplicate$ missing.or.empty
-    { type$ "mastersthesis" = { "Master's Thesis" }
-        { type$ "phdthesis" = { "Ph.D. Thesis" }
-          { "" } if$ } if$
-      swap$ pop$
-    }
-    'skip$
-  if$
-  duplicate$ empty$
-    { pop$ pop$ }
-    { swap$ start.field write$ fin.field }
-  if$
-}
-FUNCTION {url.note.status.review} {
-    "url" url optional.field
-    "note" note optional.field
-    "status" status optional.field
-    "review" review optional.field
-    "review" mrnumber optional.mr.field
-}
-FUNCTION {start.entry} {
-    newline$
-    "\bib{" cite$ * "}{" *
-    type$ "mastersthesis" = type$ "phdthesis" =  OR
-        { "thesis" }
-        { type$ }
-    if$
-    * "}{" * write$
-    newline$
-}
-FUNCTION {fin.entry} {
-    "}" write$
-    newline$
-}
-FUNCTION {article} {
-    start.entry
-    "author" author optional.name.field
-    "translator" translator optional.name.field
-    "title" title format.title write.field
-    "subtitle" subtitle optional.title.field
-    "language" language optional.field
-    "organization" organization optional.field
-    "how" howpublished optional.field
-    "date" assemble.date.field
-    "ISSN" issn optional.field
-    "journal" journal optional.journal.field
-    "volume" volume optional.field
-    "number" number optional.field
-    "pages" pages optional.pages.field
-    "PII" pii optional.field
-    "archive" archive optional.field
-    "eprint" eprint optional.field
-    "preprint" preprint optional.field
-    url.note.status.review
-    fin.entry
-}
-FUNCTION {inproceedings} {
-    start.entry
-    "author" author optional.name.field
-    "translator" translator optional.name.field
-    "title" title format.title write.field
-    "subtitle" subtitle optional.title.field
-    "language" language optional.field
-    "organization" organization optional.field
-    "how" howpublished optional.field
-    "date" assemble.date.field
-    "xid" xid optional.field
-    "conference" meeting optional.field
-    "booktitle" booktitle optional.title.field
-    "edition" edition optional.edition.field
-    "editor" editor optional.name.field
-    "series" series optional.field
-    "volume" volume optional.field
-    "publisher" publisher optional.field
-    "address" address optional.field
-    "pages" pages optional.pages.field
-    url.note.status.review
-    fin.entry
-}
-FUNCTION {inbook} { inproceedings }
-FUNCTION {incollection} { inproceedings }
-FUNCTION {conference} { inproceedings }
-FUNCTION {book} {
-    start.entry
-    "author" author optional.name.field
-    "editor" editor optional.name.field
-    "translator" translator optional.name.field
-    "title" title missing$ { booktitle } { title } if$
-       format.title write.field
-    "subtitle" subtitle optional.title.field
-    "type" type optional.type.field
-    "language" language optional.field
-    "conference" meeting optional.field
-    "edition" edition optional.edition.field
-    "series" series optional.field
-    "publisher" publisher optional.field
-    organization missing.or.empty
-        { "institution" institution optional.field }
-        { "organization" organization optional.field }
-    if$
-    "address" address optional.field
-    "how" howpublished optional.field
-    "date" year write.field
-    "volume" volume optional.field
-    "number" number optional.field
-    "ISBN" isbn optional.field
-    url.note.status.review
-    fin.entry
-}
-FUNCTION {booklet} { book }
-FUNCTION {manual} { book }
-FUNCTION {mastersthesis} { book }
-
-FUNCTION {phdthesis} { book }
-
-FUNCTION {proceedings} { book }
-
-FUNCTION {collection} { book }
-
-FUNCTION {techreport} { book }
-
-FUNCTION {unpublished} { book }
-
-FUNCTION {misc} { book }
-
-FUNCTION {default.type} { misc }
-
-
-READ
-
-FUNCTION {write.with.newlines}
-{ 's :=  #1 'ptr :=
-  { s ptr #2 + #1 substring$ "" = NOT }
-  { s ptr #3 substring$ "^^M" =
-    { s #1 ptr #1 - substring$ write$ newline$
-      ptr #3 + 'ptr :=
-      s ptr global.max$ substring$ 's :=
-      #1 'ptr :=
-    }
-    { incr.ptr }
-    if$
-  }
-  while$
-  s write$ newline$
-}
-FUNCTION {begin.bib} {
-    preamble$ empty$
-        'skip$
-        { preamble$ write.with.newlines }
-    if$
-    "% \bib, bibdiv, biblist are defined by the amsrefs package."
-        write$ newline$
-    "\begin{bibdiv}" write$ newline$
-    "\begin{biblist}" write$ newline$
-}
-FUNCTION {end.bib} {
-    newline$
-    "\end{biblist}" write$ newline$
-    "\end{bibdiv}" write$ newline$
-}
-EXECUTE {begin.bib}
-
-ITERATE {call.type$}
-
-EXECUTE {end.bib}
-%% 
-%%
-%% End of file `amsru.bst'.
diff --git a/Master/texmf-dist/bibtex/bst/amslatex/amsry.bst b/Master/texmf-dist/bibtex/bst/amslatex/amsry.bst
deleted file mode 100644
index 7e8a03e3035..00000000000
--- a/Master/texmf-dist/bibtex/bst/amslatex/amsry.bst
+++ /dev/null
@@ -1,774 +0,0 @@
-%%
-%% This is file `amsry.bst',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsxport.dtx  (with options: `bst,sort,alpha,y2k')
-%% 
-%%% ====================================================================
-%%% @BibTeX-source-file{
-%%%   filename  = "amsxport.dtx",
-%%%   version   = "2.00",
-%%%   date      = "2004/06/28",
-%%%   time      = "14:50:12 EDT",
-%%%   author    = "Michael J Downes",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support at ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "The BibTeX style file amsxport.bst produces .bbl
-%%%                entries where most of the database structure is
-%%%                retained. This is intended for processing by a smart
-%%%                bibliography package such as the amsrefs package.",
-%%%   checksum  = "40425 1822 6396 51551",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-ENTRY
-  {
-    address      institution  number       status
-    archive      isbn         organization subtitle
-    author       issn         pages        title
-    booktitle    journal      part         translator
-    chapter      key          pii          type
-    date         language     preprint     url
-    edition      meeting      publisher    volume
-    editor       month        review       xid
-    eprint       mrnumber     school       year
-    howpublished note         series
-  }
-  { }
-  { label }
-MACRO {jan} {"-01"}
-MACRO {feb} {"-02"}
-MACRO {mar} {"-03"}
-MACRO {apr} {"-04"}
-MACRO {may} {"-05"}
-MACRO {jun} {"-06"}
-MACRO {jul} {"-07"}
-MACRO {aug} {"-08"}
-MACRO {sep} {"-09"}
-MACRO {oct} {"-10"}
-MACRO {nov} {"-11"}
-MACRO {dec} {"-12"}
-STRINGS { p s t l }
-INTEGERS { len ptr }
-
-FUNCTION {NOT} { { #0 } { #1 } if$ }
-
-FUNCTION {AND} { 'skip$ { pop$ #0 } if$ }
-
-FUNCTION {OR} { { pop$ #1 } 'skip$ if$ }
-
-FUNCTION {TRUE} { #1 }
-
-FUNCTION {FALSE} { #0 }
-
-FUNCTION {incr.ptr} { ptr #1 + 'ptr := }
-
-FUNCTION {current.char} { ptr #1 substring$ }
-FUNCTION {copy.two.chars} { t * incr.ptr s current.char * incr.ptr }
-
-FUNCTION {is.digit} {
-    chr.to.int$
-    duplicate$
-    "0" chr.to.int$ #1 - >
-    swap$
-    "9" chr.to.int$ #1 + <
-    AND
-}
-
-FUNCTION {is.lowercase.letter} {
-    chr.to.int$ duplicate$
-    "a" chr.to.int$ #1 - >
-    swap$
-    "z" chr.to.int$ #1 + <
-    AND
-}
-FUNCTION {is.uppercase.letter} {
-    chr.to.int$ duplicate$
-    "A" chr.to.int$ #1 - >
-    swap$
-    "Z" chr.to.int$ #1 + <
-    AND
-}
-FUNCTION {is.letter} {
-    duplicate$
-    is.lowercase.letter
-        { pop$ TRUE }
-        { is.uppercase.letter }
-    if$
-}
-FUNCTION {skip.accent} { pop$ incr.ptr }
-FUNCTION {strip.label} {
-    's :=
-    #1 'ptr :=
-    ""
-    { s ptr #1 substring$ duplicate$ empty$ NOT }
-        { duplicate$ is.letter
-            { * }
-            { duplicate$ "\" =
-                { skip.accent }
-                'pop$
-              if$
-            }
-          if$
-          incr.ptr
-        }
-    while$
-    pop$
-}
-FUNCTION {sortify} {
-    purify$
-    "l" change.case$
-}
-FUNCTION {rpad} {
-    swap$
-    'l :=
-    l text.length$ - 'len :=
-    { len #0 > }
-        {
-            l " " * 'l :=
-            len #1 - 'len :=
-        }
-    while$
-    l
-}
-FUNCTION {lpad} {
-    swap$
-    'l :=
-    l text.length$ - 'len :=
-    { len #0 > }
-        {
-            " " l * 'l :=
-            len #1 - 'len :=
-        }
-    while$
-    l
-}
-FUNCTION {field.or.null} {
-    duplicate$ empty$
-        { pop$ "" }
-        'skip$
-    if$
-}
-FUNCTION {missing.or.empty} { duplicate$ missing$ swap$ empty$ OR }
-
-FUNCTION {append.ndash.and.skip.hyphens} {
-    "\ndash " *
-    incr.ptr
-    { s current.char "-" = }
-        { incr.ptr }
-    while$
-}
-FUNCTION {n.dashify} {
-    's :=
-    #1 'ptr :=
-    ""
-    { s current.char 't :=  t "" = NOT }
-      { t "\" =
-          { copy.two.chars }
-          { t "-" =
-              { append.ndash.and.skip.hyphens }
-              { t * incr.ptr }
-            if$
-          }
-        if$
-      }
-    while$
-}
-FUNCTION {missing.warning} {
-    "missing " swap$ * " in " * cite$ * warning$
-}
-
-INTEGERS { string.ptr }
-
-FUNCTION {string.length} {
-    #1 'string.ptr :=
-    { duplicate$ string.ptr #1 substring$ "" = 'FALSE 'TRUE if$ }
-        { string.ptr #1 + 'string.ptr := }
-    while$
-    pop$
-    string.ptr #1 -
-}
-FUNCTION {format.title}{
-    duplicate$
-    missing.or.empty
-        { pop$ "" }
-        { "t" change.case$ }
-    if$
-}
-FUNCTION {start.field} {
-    #12 lpad "={" * write$
-}
-FUNCTION {fin.field} { "}," write$ newline$ }
-
-FUNCTION {write.field} {
-    duplicate$
-    missing$
-        { pop$ missing.warning }
-        { duplicate$ empty$
-            { pop$ missing.warning }
-            { swap$ start.field write$ fin.field }
-          if$
-        }
-    if$
-}
-FUNCTION {optional.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        { swap$ start.field write$ fin.field }
-    if$
-}
-FUNCTION {optional.title.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        { format.title swap$ start.field write$ fin.field }
-    if$
-}
-FUNCTION {optional.pages.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        { swap$ start.field
-          n.dashify
-          write$ fin.field
-        }
-    if$
-}
-FUNCTION {optional.mr.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        {
-          swap$ start.field
-          "\MR{" swap$ * "}" * write$ fin.field
-        }
-    if$
-}
-FUNCTION {remove.ordinal.suffix} {
-    's :=
-    s string.length 'len :=
-    #1 'ptr :=
-    { ptr len < s ptr #1 substring$ is.digit AND }
-        'incr.ptr
-    while$
-    s ptr global.max$ substring$ 'p :=
-    p "st" =
-        { TRUE }
-        { p "nd" =
-            { TRUE }
-            { p "rd" =
-                { TRUE }
-                { p "th" =
-                    { TRUE }
-                    { FALSE }
-                  if$
-                }
-              if$
-            }
-          if$
-        }
-    if$
-    { s #1 ptr #1 - substring$ }
-    { s }
-  if$
-}
-FUNCTION {optional.edition.field} {
-    duplicate$ missing.or.empty
-        { pop$ pop$ }
-        { swap$ start.field
-          remove.ordinal.suffix
-          write$ fin.field
-        }
-    if$
-}
-INTEGERS { nameptr numnames namesleft }
-STRINGS { namelist fieldname }
-FUNCTION {format.name} { "{vv~}{ll}{, ff}{, jj}" format.name$ }
-
-FUNCTION {optional.name.field}{
-    duplicate$ missing.or.empty
-        { pop$ pop$ }
-        { swap$ 'fieldname :=
-          duplicate$ num.names$
-          'namesleft :=
-          #1 'ptr :=
-          { namesleft #0 > }
-            { fieldname start.field
-              duplicate$ ptr format.name write$
-              fin.field
-              ptr #1 + 'ptr :=
-              namesleft #1 - 'namesleft :=
-            }
-          while$
-        pop$
-        }
-    if$
-}
-FUNCTION {assemble.date.field}
-{ date missing$
-    { year missing.or.empty
-        { status missing.or.empty
-            { "No year or other date information for "
-               cite$ * warning$ }
-            'skip$
-          if$
-          "status"
-        }
-        { year month missing$ { "" } { month } if$ * }
-      if$
-    }
-    { date }
-  if$
-  duplicate$ "status" =
-    { pop$ pop$ }
-    { swap$ start.field write$ fin.field }
-  if$
-}
-FUNCTION {optional.journal.field} {
-    duplicate$ missing.or.empty
-        { pop$ pop$ }
-        {
-            's :=
-            start.field
-            #1 'ptr :=
-            s current.char is.lowercase.letter
-                {
-                    s "/" * 's :=
-                    { s ptr #1 substring$ "/" = NOT }
-                        { incr.ptr }
-                    while$
-                    s ptr #1 + #1 substring$ empty$
-                        { s #1 ptr #1 - substring$ }
-                        {
-                            s #1 ptr #1 - substring$
-                            write$
-                            fin.field
-                            "ISSN" start.field
-                            s ptr #1 + #9 substring$
-                        }
-                    if$
-                }
-                { s }
-            if$
-            write$
-            fin.field
-        }
-    if$
-}
-FUNCTION {optional.type.field}
-{ duplicate$ missing.or.empty
-    { type$ "mastersthesis" = { "Master's Thesis" }
-        { type$ "phdthesis" = { "Ph.D. Thesis" }
-          { "" } if$ } if$
-      swap$ pop$
-    }
-    'skip$
-  if$
-  duplicate$ empty$
-    { pop$ pop$ }
-    { swap$ start.field write$ fin.field }
-  if$
-}
-FUNCTION {url.note.status.review} {
-    "url" url optional.field
-    "note" note optional.field
-    "status" status optional.field
-    "review" review optional.field
-    "review" mrnumber optional.mr.field
-}
-FUNCTION {start.entry} {
-    newline$
-    "\bib{" cite$ * "}{" *
-    type$ "mastersthesis" = type$ "phdthesis" =  OR
-        { "thesis" }
-        { type$ }
-    if$
-    * "}{" * write$
-    newline$
-}
-FUNCTION {fin.entry} {
-    "}" write$
-    newline$
-}
-FUNCTION {article} {
-    start.entry
-    "author" author optional.name.field
-    "translator" translator optional.name.field
-    "title" title format.title write.field
-    "subtitle" subtitle optional.title.field
-    "language" language optional.field
-    "organization" organization optional.field
-    "how" howpublished optional.field
-    "date" assemble.date.field
-    "ISSN" issn optional.field
-    "journal" journal optional.journal.field
-    "volume" volume optional.field
-    "number" number optional.field
-    "pages" pages optional.pages.field
-    "PII" pii optional.field
-    "archive" archive optional.field
-    "eprint" eprint optional.field
-    "preprint" preprint optional.field
-    url.note.status.review
-    fin.entry
-}
-FUNCTION {inproceedings} {
-    start.entry
-    "author" author optional.name.field
-    "translator" translator optional.name.field
-    "title" title format.title write.field
-    "subtitle" subtitle optional.title.field
-    "language" language optional.field
-    "organization" organization optional.field
-    "how" howpublished optional.field
-    "date" assemble.date.field
-    "xid" xid optional.field
-    "conference" meeting optional.field
-    "booktitle" booktitle optional.title.field
-    "edition" edition optional.edition.field
-    "editor" editor optional.name.field
-    "series" series optional.field
-    "volume" volume optional.field
-    "publisher" publisher optional.field
-    "address" address optional.field
-    "pages" pages optional.pages.field
-    url.note.status.review
-    fin.entry
-}
-FUNCTION {inbook} { inproceedings }
-FUNCTION {incollection} { inproceedings }
-FUNCTION {conference} { inproceedings }
-FUNCTION {book} {
-    start.entry
-    "author" author optional.name.field
-    "editor" editor optional.name.field
-    "translator" translator optional.name.field
-    "title" title missing$ { booktitle } { title } if$
-       format.title write.field
-    "subtitle" subtitle optional.title.field
-    "type" type optional.type.field
-    "language" language optional.field
-    "conference" meeting optional.field
-    "edition" edition optional.edition.field
-    "series" series optional.field
-    "publisher" publisher optional.field
-    organization missing.or.empty
-        { "institution" institution optional.field }
-        { "organization" organization optional.field }
-    if$
-    "address" address optional.field
-    "how" howpublished optional.field
-    "date" year write.field
-    "volume" volume optional.field
-    "number" number optional.field
-    "ISBN" isbn optional.field
-    url.note.status.review
-    fin.entry
-}
-FUNCTION {booklet} { book }
-FUNCTION {manual} { book }
-FUNCTION {mastersthesis} { book }
-
-FUNCTION {phdthesis} { book }
-
-FUNCTION {proceedings} { book }
-
-FUNCTION {collection} { book }
-
-FUNCTION {techreport} { book }
-
-FUNCTION {unpublished} { book }
-
-FUNCTION {misc} { book }
-
-FUNCTION {default.type} { misc }
-
-
-READ
-
-FUNCTION {chop.word} {
-    's :=
-    'len :=
-    s #1 len substring$ =
-        { s len #1 + global.max$ substring$ }
-        's
-    if$
-}
-FUNCTION {sort.format.title} {
-    't :=
-    "A " #2
-      "An " #3
-        "The " #4 t chop.word
-      chop.word
-    chop.word
-    sortify
-    #1 global.max$ substring$
-}
-FUNCTION {format.lab.names} {
-   's :=
-    s num.names$ 'numnames :=
-    numnames #1 >
-      { numnames #4 >
-          { #3 'namesleft := }
-          { numnames 'namesleft := }
-        if$
-        #1 'nameptr :=
-        ""
-          { namesleft #0 > }
-          { nameptr numnames =
-              { s nameptr "{ff }{vv }{ll}{ jj}" format.name$ "others" =
-                  { "{\etalchar{+}}" * }
-                  { s nameptr "{v{}}{l{}}" format.name$ * }
-                if$
-              }
-              { s nameptr "{v{}}{l{}}" format.name$ * }
-            if$
-            nameptr #1 + 'nameptr :=
-            namesleft #1 - 'namesleft :=
-          }
-        while$
-        numnames #4 >
-          { "{\etalchar{+}}" * }
-          'skip$
-        if$
-      }
-      { s #1 "{v{}}{l{}}" format.name$
-        duplicate$ text.length$ #2 <
-          { pop$ s #1 "{ll}" format.name$ #3 text.prefix$ }
-          'skip$
-        if$
-      }
-    if$
-}
-
-FUNCTION {author.key.label}
-{ author empty$
-    { key empty$
-{ cite$ #1 #3 substring$ }
-{ key #3 text.prefix$ }
-      if$
-    }
-    { author format.lab.names }
-  if$
-}
-
-FUNCTION {author.editor.key.label}
-{ author empty$
-    { editor empty$
-{ key empty$
-    { cite$ #1 #3 substring$ }
-    { key #3 text.prefix$ }
-  if$
-}
-{ editor format.lab.names }
-      if$
-    }
-    { author format.lab.names }
-  if$
-}
-
-FUNCTION {author.key.organization.label}
-{ author empty$
-    { key empty$
-{ organization empty$
-    { cite$ #1 #3 substring$ }
-    { "The " #4 organization chop.word #3 text.prefix$ }
-  if$
-}
-{ key #3 text.prefix$ }
-      if$
-    }
-    { author format.lab.names }
-  if$
-}
-
-FUNCTION {editor.key.organization.label}
-{ editor empty$
-    { key empty$
-{ organization empty$
-    { cite$ #1 #3 substring$ }
-    { "The " #4 organization chop.word #3 text.prefix$ }
-  if$
-}
-{ key #3 text.prefix$ }
-      if$
-    }
-    { editor format.lab.names }
-  if$
-}
-
-FUNCTION {calc.label}{
-    type$ "book" =  type$ "inbook" =  OR
-    'author.editor.key.label
-    { type$ "proceedings" =
-'editor.key.organization.label
-{ type$ "manual" =
-    'author.key.organization.label
-    'author.key.label
-  if$
-}
-      if$
-    }
-    if$
-    strip.label
-    sortify
-    year field.or.null
-    purify$ *
-    'label :=
-}
-FUNCTION {sort.format.names} {
-    's :=
-    #1 'ptr :=
-    ""
-    s num.names$ 'numnames :=
-    numnames 'namesleft :=
-      { namesleft #0 > }
-      { ptr #1 >
-          { " " * }
-          'skip$
-        if$
-        s ptr "{ll}{ ff}{ jj}" format.name$ 't :=
-        ptr numnames = t "others" = AND
-          { "et al" }
-          { t sortify }
-        if$
-        #20 rpad *
-        ptr #1 + 'ptr :=
-        namesleft #1 - 'namesleft :=
-      }
-    while$
-}
-FUNCTION {sort.warning} {
-    "to sort, need " swap$ * " or key in " * cite$ * warning$
-}
-FUNCTION {author.sort}
-{ author empty$
-    { key empty$
-        { "author" sort.warning
-          ""
-        }
-        { key sortify }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-FUNCTION {author.editor.sort}
-{ author empty$
-    { editor empty$
-        { key empty$
-            { "author, editor," sort.warning
-              ""
-            }
-            { key sortify }
-          if$
-        }
-        { editor sort.format.names }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-FUNCTION {author.organization.sort}
-{ author empty$
-    { organization empty$
-        { key empty$
-            { "author, organization," sort.warning
-              ""
-            }
-            { key sortify }
-          if$
-        }
-        { "The " #4 organization chop.word sortify }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-FUNCTION {editor.organization.sort}
-{ editor empty$
-    { organization empty$
-        { key empty$
-            { "editor, organization," sort.warning
-              ""
-            }
-            { key sortify }
-          if$
-        }
-        { "The " #4 organization chop.word sortify }
-      if$
-    }
-    { editor sort.format.names }
-  if$
-}
-FUNCTION {presort} {
-    calc.label
-    label #20 rpad
-    type$ "book" = type$ "inbook" = OR type$ "collection" = OR
-        'author.editor.sort
-        { type$ "proceedings" =
-            'editor.organization.sort
-            { type$ "manual" =
-                'author.organization.sort
-                'author.sort
-              if$
-            }
-          if$
-        }
-    if$
-    * " " *
-    title field.or.null sort.format.title *
-    #1 entry.max$ substring$
-    'sort.key$ :=
-}
-ITERATE {presort}
-
-SORT
-FUNCTION {write.with.newlines}
-{ 's :=  #1 'ptr :=
-  { s ptr #2 + #1 substring$ "" = NOT }
-  { s ptr #3 substring$ "^^M" =
-    { s #1 ptr #1 - substring$ write$ newline$
-      ptr #3 + 'ptr :=
-      s ptr global.max$ substring$ 's :=
-      #1 'ptr :=
-    }
-    { incr.ptr }
-    if$
-  }
-  while$
-  s write$ newline$
-}
-FUNCTION {begin.bib} {
-    preamble$ empty$
-        'skip$
-        { preamble$ write.with.newlines }
-    if$
-    "% \bib, bibdiv, biblist are defined by the amsrefs package."
-        write$ newline$
-    "\begin{bibdiv}" write$ newline$
-    "\begin{biblist}" write$ newline$
-}
-FUNCTION {end.bib} {
-    newline$
-    "\end{biblist}" write$ newline$
-    "\end{bibdiv}" write$ newline$
-}
-EXECUTE {begin.bib}
-
-ITERATE {call.type$}
-
-EXECUTE {end.bib}
-%% 
-%%
-%% End of file `amsry.bst'.
diff --git a/Master/texmf-dist/doc/latex/amslatex/00readme.txt b/Master/texmf-dist/doc/latex/amslatex/00readme.txt
deleted file mode 100644
index 0dec0fb6419..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/00readme.txt
+++ /dev/null
@@ -1,143 +0,0 @@
-00readme.txt for amsrefs 2.0 [2004-06-30]
-
-See also install.txt and manifest.txt. There is a history of changes at
-the end of this file.
-
-Please send bug reports and questions to tech-support@ams.org.
-
-========================================================================
-
-The amsrefs package deals with bibliographies and citations in LaTeX
-documents. The basic citation command remains more or less the same as
-in standard LaTeX (\cite), but a number of additional variations address
-certain known pitfalls or gaps in the standard LaTeX set of citation
-features.
-
-The command for bibliography items is different---\bib instead of
-\bibitem---for reasons that will be evident upon further reading in the
-documentation.
-
-A set of BibTeX style files are provided to allow people to extract
-data from .bib files and produce .bbl files in amsrefs format instead
-of conventional \bibitem format.
-
-User documentation is in amsrdoc.pdf.
-
-Technical documentation (including documentation for package writers)
-is in amsrefs.pdf.
-
-========================================================================
-I. FEATURES
-
----Preservation of structure.
-
-The internal structural information of the bibliography entries is not
-lost when they are imported from the database file into the LaTeX
-document. This takes on its greatest significance when archiving
-documents in LaTeX form or transmitting them to another user (such as a
-publisher).
-
----Deferred formatting.
-
-This means that the style of the bibliography can be changed on demand
-without reimporting everything from the original database(s).
-
----More natural data format for titles.
-
-Proper nouns do not need to have braces added to prevent capitalization
-problems.
-
----Less ambiguous format for author names.
-
-When author names are given in inverted order (last name first) it is
-possible for LaTeX to unambiguously identify the last name without any
-further markup, even in cases like Saunders Mac Lane (Mac Lane,
-Saunders) versus Stephen H. Lane (Lane, Stephen H.), or Cam Van Tran
-(Tran, Cam Van) versus Bert Van Keulen (Van Keulen, Bert). In
-BibTeX some of these would need to have extra braces added to ensure
-that the surname is accurately distinguished.
-
----Author-year citations.
-
-There is integrated support for citations in author-year form.
-
----Back-reference support.
-
-Works in conjunction with the hyperref package.
-
----Setup requires only LaTeX knowledge.
-
-All bibliography setup can be done in LaTeX; learning another
-programming language (such as, the one used in BibTeX bst files) is
-unnecessary.
-
----Self-printable database files.
-
-A LaTeX document that contains only a bibliography in amsrefs forms can
-be used as a database for exporting entries to other documents. And
-because it is a LaTeX document, the database can be printed directly at
-any time simply by running it through LaTeX in the usual way.
-
----Self-contained.
-
-In many cases it seems possible to do without BibTeX entirely. For
-example, if the entries are extracted from a single database file that
-is maintained in sorted order, the bibliography can be printed directly
-by LaTeX on the first pass and the citations resolved on the second
-pass.
-
-========================================================================
-II. GETTING STARTED
-
-1. Install the package, referring to install.txt as needed.
-
-2. There are four example files provided:
-
-  cite-xa : Demonstrates an author-year citation scheme. The
-            bibliography is embedded in the .tex file instead of
-            residing in a separate .bbl file.
-
-  cite-xb : Demonstrates usage with more-or-less standard BibTeX
-            methods.
-
-  cite-xs : Shows how the bbl file can be created by LaTeX itself from a
-            suitably presorted ltb file.
-
-  cite-xh : A working hyperref/backrefs example.
-
-3. Run LaTeX on cite-xa.tex. Take a look at the messages that have to do
-with citations and the bibliography section. Run LaTeX again to resolve
-the citations and check the output.
-
-4. Run LaTeX on cite-xb.tex. Run BibTeX. Look at the bbl file.
-Interesting, huh? Run LaTeX twice more to resolve the citations.
-
-5. Run LaTeX on cite-xs.tex and look at the output.
-
-6. Run pdflatex on cite-xh.tex (it is set up to use BibTeX also, like
-cite-xb).
-
-========================================================================
-III. REMARKS ON THIS RELEASE
-
-This is a thorough overhaul and rewrite of the the amsrefs package.
-Many (perhaps even most) of the internals have changed and a number of
-new features have been added.  Backwards compatibility for documents
-created with previous versions of this package has been
-
-See changes.pdf for information on the user-visible changes.
-
-========================================================================
-IV. SETTING UP A CUSTOM BIBLIOGRAPHY STYLE
-
-More documentation is needed here, but the discussion in amsrefs.pdf
-should be enough to get you started.  See especially sections 4, 6.10,
-6.26.15, and 6.27.
-
-========================================================================
-V. CHANGE LOG
-
-*amsrefs.dtx 2.0 2004-06-30 11:24:39 EDT
-
-Major rewrite of internals.  See changes.pdf for information on the
-user-visible changes.
diff --git a/Master/texmf-dist/doc/latex/amslatex/amsart.template b/Master/texmf-dist/doc/latex/amslatex/amsart.template
deleted file mode 100644
index 1923a23557c..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/amsart.template
+++ /dev/null
@@ -1,61 +0,0 @@
-%-----------------------------------------------------------------------
-% Beginning of amsart.template
-%-----------------------------------------------------------------------
-%
-%     AMS-LaTeX v.2 template for use with amsart
-%
-%     Remove any commented or uncommented macros you do not use.
-
-\documentclass{amsart}
-
-\newtheorem{theorem}{Theorem}[section]
-\newtheorem{lemma}[theorem]{Lemma}
-
-\theoremstyle{definition}
-\newtheorem{definition}[theorem]{Definition}
-\newtheorem{example}[theorem]{Example}
-\newtheorem{xca}[theorem]{Exercise}
-
-\theoremstyle{remark}
-\newtheorem{remark}[theorem]{Remark}
-
-\numberwithin{equation}{section}
-
-\begin{document}
-
-\title{}
-
-%    Remove any unused author tags.
-
-%    author one information
-\author{}
-\address{}
-\curraddr{}
-\email{}
-\thanks{}
-
-%    author two information
-\author{}
-\address{}
-\curraddr{}
-\email{}
-\thanks{}
-
-\subjclass[2000]{Primary }
-
-\keywords{}
-
-\date{}
-
-\dedicatory{}
-
-\begin{abstract}
-\end{abstract}
-
-\maketitle
-
-\end{document}
-
-%-----------------------------------------------------------------------
-% End of amsart.template
-%-----------------------------------------------------------------------
diff --git a/Master/texmf-dist/doc/latex/amslatex/amsbook.template b/Master/texmf-dist/doc/latex/amslatex/amsbook.template
deleted file mode 100644
index 4ac9c928dd9..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/amsbook.template
+++ /dev/null
@@ -1,99 +0,0 @@
-%-----------------------------------------------------------------------
-% Beginning of amsbook.template
-%-----------------------------------------------------------------------
-%
-%    AMS-LaTeX v.2 driver file template for use with amsbook
-%
-%    Remove any commented or uncommented macros you do not use.
-
-\documentclass{amsart}
-
-%    For use when working on individual chapters
-%\includeonly{}
-
-%    Include referenced packages here.
-\usepackage{}
-
-\newtheorem{theorem}{Theorem}[chapter]
-\newtheorem{lemma}[theorem]{Lemma}
-
-\theoremstyle{definition}
-\newtheorem{definition}[theorem]{Definition}
-\newtheorem{example}[theorem]{Example}
-\newtheorem{xca}[theorem]{Exercise}
-
-\theoremstyle{remark}
-\newtheorem{remark}[theorem]{Remark}
-
-\numberwithin{section}{chapter}
-\numberwithin{equation}{chapter}
-
-%    For a single index; for multiple indexes, see the manual
-%    "Instructions for preparation of papers and monographs:
-%    AMS-LaTeX" (instr-l.pdf in the AMS-LaTeX distribution).
-\makeindex
-
-\begin{document}
-
-\frontmatter
-
-\title{}
-
-%    Remove any unused author tags.
-
-%    author one information
-\author{}
-\address{}
-\curraddr{}
-\email{}
-\thanks{}
-
-%    author two information
-\author{}
-\address{}
-\curraddr{}
-\email{}
-\thanks{}
-
-\subjclass[2000]{Primary }
-
-\keywords{}
-
-\date{}
-
-\begin{abstract}
-\end{abstract}
-
-\maketitle
-
-\setcounter{page}{4}
-
-%    See the AMS Author FAQ, http://www.ams.org/authors/author-faq.html
-%    regarding a dedication page.
-
-\tableofcontents
-
-%    Include unnumbered chapters (preface, acknowledgments, etc.) here.
-\include{}
-
-\mainmatter
-%    Include main chapters here.
-\include{}
-
-\appendix
-%    Include appendix "chapters" here.
-\include{}
-
-\backmatter
-%    Bibliography styles amsplain or harvard are also acceptable.
-\bibliographystyle{amsalpha}
-\bibliography{}
-%    See note above about multiple indexes.
-\printindex
-\end{document}
-
-\end{document}
-
-%-----------------------------------------------------------------------
-% End of amsbook.template
-%-----------------------------------------------------------------------
diff --git a/Master/texmf-dist/doc/latex/amslatex/amsldoc.pdf b/Master/texmf-dist/doc/latex/amslatex/amsldoc.pdf
deleted file mode 100644
index 24abc4d3f27..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/amsldoc.pdf
+++ /dev/null
@@ -1,5623 +0,0 @@
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diff --git a/Master/texmf-dist/doc/latex/amslatex/amsldoc.tex b/Master/texmf-dist/doc/latex/amslatex/amsldoc.tex
deleted file mode 100644
index abb532cccb8..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/amsldoc.tex
+++ /dev/null
@@ -1,2620 +0,0 @@
-%%% ====================================================================
-%%%  @LaTeX-file{
-%%%     filename        = "amsldoc.tex",
-%%%     version         = "2.09",
-%%%     date            = "2004/04/06",
-%%%     time            = "15:13:33 EDT",
-%%%     checksum        = "39446 2620 11111 93831",
-%%%     author          = "American Mathematical Society",
-%%%     address         = "American Mathematical Society,
-%%%                        Technical Support,
-%%%                        Electronic Products and Services,
-%%%                        P. O. Box 6248,
-%%%                        Providence, RI 02940,
-%%%                        USA",
-%%%     telephone       = "401-455-4080 or (in the USA and Canada)
-%%%                        800-321-4AMS (321-4267)",
-%%%     FAX             = "401-331-3842",
-%%%     email           = "tech-support@ams.org (Internet)",
-%%%     copyright       = "Copyright 1999 American Mathematical Society,
-%%%                        all rights reserved.  Copying of this file is
-%%%                        authorized only if either:
-%%%                        (1) you make absolutely no changes to your copy,
-%%%                        including name; OR
-%%%                        (2) if you do make changes, you first rename it
-%%%                        to some other name.",
-%%%     supported       = "yes",
-%%%     keywords        = "latex, amsmath",
-%%%     abstract        = "This file is the source file for the user's
-%%%                        guide of the \LaTeX{} package amsmath .",
-%%%     docstring       = "The checksum field above contains a CRC-16
-%%%                        checksum as the first value, followed by the
-%%%                        equivalent of the standard UNIX wc (word
-%%%                        count) utility output of lines, words, and
-%%%                        characters.  This is produced by Robert
-%%%                        Solovay's checksum utility.",
-%%%  }
-%%% ====================================================================
-\documentclass[leqno,titlepage,openany]{amsldoc}[1999/12/13]
-
-\ifx\UndEfiNed\url
-  \ClassError{amsldoc}{%
-    This version of amsldoc.tex must be processed\MessageBreak
-    with a newer version of amsldoc.cls (2.02 or later)}{}
-\fi
-
-\title{User's Guide for the \pkg{amsmath} Package (Version~2.0)}
-\author{American Mathematical Society}
-\date{1999-12-13 (revised 2002-02-25)}
-
-%    Use the amsmath package and amscd package in order to print
-%    examples.
-\usepackage{amsmath}
-\usepackage{amscd}
-
-\makeindex % generate index data
-\providecommand{\see}[2]{\textit{see} #1}
-
-%    The amsldoc class includes a number of features useful for
-%    documentation about TeX, including:
-%
-%    ---Commands \tex/, \amstex/, \latex/, ... for uniform treatment
-%    of the various logos and easy handling of following spaces.
-%
-%    ---Commands for printing various common elements: \cn for command
-%    names, \fn for file names (including font-file names), \env for
-%    environments, \pkg and \cls for packages and classes, etc.
-
-%    Many of the command names used here are rather long and will
-%    contribute to poor linebreaking if we follow the \latex/ practice
-%    of not hyphenating anything set in tt font; instead we selectively
-%    allow some hyphenation.
-\allowtthyphens % defined in amsldoc.cls
-
-\hyphenation{ac-cent-ed-sym-bol add-to-counter add-to-length align-at
-  aligned-at allow-dis-play-breaks ams-art ams-cd ams-la-tex amsl-doc
-  ams-symb ams-tex ams-text ams-xtra bmatrix bold-sym-bol cen-ter-tags
-  eqn-ar-ray idots-int int-lim-its latex med-space neg-med-space
-  neg-thick-space neg-thin-space no-int-lim-its no-name-lim-its
-  over-left-arrow over-left-right-arrow over-right-arrow pmatrix
-  qed-sym-bol set-length side-set small-er tbinom the-equa-tion
-  thick-space thin-space un-der-left-arrow un-der-left-right-arrow
-  un-der-right-arrow use-pack-age var-inj-lim var-proj-lim vmatrix
-  xalign-at xx-align-at}
-
-%    Prepare for illustrating the \vec example
-\newcommand{\vect}[1]{\mathbf{#1}}
-
-\newcommand{\booktitle}[1]{\textit{#1}}
-\newcommand{\journalname}[1]{\textit{#1}}
-\newcommand{\seriesname}[1]{\textit{#1}}
-
-%    Command to insert and index a particular phrase. Doesn't work for
-%    certain kinds of special characters in the argument.
-\newcommand{\ii}[1]{#1\index{#1}}
-
-\newcommand{\vstrut}[1]{\vrule width0pt height#1\relax}
-
-%    An environment for presenting comprehensive address information:
-\newenvironment{infoaddress}{%
-  \par\topsep\medskipamount
-  \trivlist\centering
-  \item[]%
-  \begin{minipage}{.7\columnwidth}%
-  \raggedright
-}{%
-  \end{minipage}%
-  \endtrivlist
-}
-
-\newenvironment{eqxample}{%
-  \par\addvspace\medskipamount
-  \noindent\begin{minipage}{.5\columnwidth}%
-  \def\producing{\end{minipage}\begin{minipage}{.5\columnwidth}%
-    \hbox\bgroup\kern-.2pt\vrule width.2pt%
-      \vbox\bgroup\parindent0pt\relax
-%    The 3pt is to cancel the -\lineskip from \displ@y
-    \abovedisplayskip3pt \abovedisplayshortskip\abovedisplayskip
-    \belowdisplayskip0pt \belowdisplayshortskip\belowdisplayskip
-    \noindent}
-}{%
-  \par
-%    Ensure that a lonely \[\] structure doesn't take up width less than
-%    \hsize.
-  \hrule height0pt width\hsize
-  \egroup\vrule width.2pt\kern-.2pt\egroup
-  \end{minipage}%
-  \par\addvspace\medskipamount
-}
-
-%    The chapters are so short, perhaps we shouldn't call them by the
-%    name `Chapter'. We make \chaptername read an argument in order to
-%    remove a following \space or "{} " (both possibilities are present
-%    in book.cls).
-
-\renewcommand{\chaptername}[1]{}
-\newcommand{\chapnum}[1]{\mdash #1\mdash }
-\makeatletter
-\def\@makechapterhead#1{%
-  \vspace{1.5\baselineskip}%
-  {\parindent \z@ \raggedright \reset@font
-    \ifnum \c@secnumdepth >\m@ne
-      \large\bfseries \chapnum{\thechapter}%
-      \par\nobreak
-      \vskip.5\baselineskip\relax
-    \fi
-    #1\par\nobreak
-    \vskip\baselineskip
-  }}
-\makeatother
-
-%    A command for ragged-right parbox in a tabular.
-\newcommand{\rp}{\let\PBS\\\raggedright\let\\\PBS}
-
-%    Non-indexed file name
-\newcommand{\nfn}[1]{\texttt{#1}}
-
-%    For the examples in the math spacing table.
-%%\newcommand{\lspx}{\mbox{\rule{5pt}{.6pt}\rule{.6pt}{6pt}}}
-%%\newcommand{\rspx}{\mbox{\rule[-1pt]{.6pt}{7pt}%
-%%  \rule[-1pt]{5pt}{.6pt}}}
-\newcommand{\lspx}{\mathord{\Rightarrow\mkern-1mu}}
-\newcommand{\rspx}{\mathord{\mkern-1mu\Leftarrow}}
-\newcommand{\spx}[1]{$\lspx #1\rspx$}
-
-%    For a list of characters representing document input.
-\newcommand{\clist}[1]{%
-  \mbox{\ntt\spaceskip.2em plus.1em \xspaceskip\spaceskip#1}}
-
-%    Fix weird \latex/ definition of rightmark.
-\makeatletter
-\def\rightmark{\expandafter\@rightmark\botmark{}{}}
-%    Also turn off section marks.
-\let\sectionmark\@gobble
-\renewcommand{\chaptermark}[1]{%
-  \uppercase{\markboth{\rhcn#1}{\rhcn#1}}}
-\newcommand{\rhcn}{\thechapter. }
-\makeatother
-
-%    Include down to \section but not \subsection, in toc:
-\setcounter{tocdepth}{1}
-
-\DeclareMathOperator{\ix}{ix}
-\DeclareMathOperator{\nul}{nul}
-\DeclareMathOperator{\End}{End}
-\DeclareMathOperator{\xxx}{xxx}
-
-\begin{document}
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\frontmatter
-
-\maketitle
-\pagestyle{headings}
-\tableofcontents
-\cleardoublepage % for better page number placement
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\mainmatter
-\chapter{Introduction}
-
-The \pkg{amsmath} package is a \LaTeX{} package that provides
-miscellaneous enhancements for improving the information structure and
-printed output of documents that contain mathematical formulas. Readers
-unfamiliar with \LaTeX{} should refer to \cite{lamport}. If you have an
-up-to-date version of \LaTeX{}, the \pkg{amsmath} package is normally
-provided along with it. Upgrading when a newer version of the
-\pkg{amsmath} package is released can be done via
-\url{http://www.ams.org/tex/amsmath.html} or
-\url{ftp://ftp.ams.org/pub/tex/}.
-
-This documentation describes the features of the \pkg{amsmath} package
-and discusses how they are intended to be used. It also covers some
-ancillary packages:
-\begin{ctab}{ll}
-\pkg{amsbsy}& \pkg{amstext}\\
-\pkg{amscd}& \pkg{amsxtra}\\
-\pkg{amsopn}
-\end{ctab}
-These all have something to do with the contents of math formulas. For
-information on extra math symbols and math fonts, see \cite{amsfonts}
-and \url{http://www.ams.org/tex/amsfonts.html}. For documentation of the
-\pkg{amsthm} package or AMS document classes (\cls{amsart},
-\cls{amsbook}, etc.\@) see \cite{amsthdoc} or \cite{instr-l} and
-\url{http://www.ams.org/tex/author-info.html}.
-
-If you are a long-time \latex/ user and have lots of mathematics in what
-you write, then you may recognize solutions for some familiar problems
-in this list of \pkg{amsmath} features:
-\begin{itemize}
-
-\item A convenient way to define new `operator name' commands analogous
-to \cn{sin} and \cn{lim}, including proper side spacing and automatic
-selection of the correct font style and size (even when used in
-sub- or superscripts).
-
-\item Multiple substitutes for the \env{eqnarray} environment to make
-various kinds of equation arrangements easier to write.
-
-\item Equation numbers automatically adjust up or down to avoid
-overprinting on the equation contents (unlike \env{eqnarray}).
-
-\item Spacing around equals signs matches the normal spacing in the
-\env{equation} environment (unlike \env{eqnarray}).
-
-\item A way to produce multiline subscripts as are often used with
-summation or product symbols.
-
-\item An easy way to substitute a variant equation number for a given
-equation instead of the automatically supplied number.
-
-\item An easy way to produce subordinate equation numbers of the form
-(1.3a) (1.3b) (1.3c) for selected groups of equations.
-
-\end{itemize}
-
-The \pkg{amsmath} package is distributed together with some small
-auxiliary packages:
-\begin{description}
-\item[\pkg{amsmath}] Primary package, provides various features for
-  displayed equations and other mathematical constructs.
-
-\item[\pkg{amstext}] Provides a \cn{text} command for
-  typesetting a fragment of text inside a display.
-
-\item[\pkg{amsopn}] Provides \cn{DeclareMathOperator} for defining new
-  `operator names' like \cn{sin} and \cn{lim}.
-
-\item[\pkg{amsbsy}] For backward compatibility this package continues
-to exist but use of the newer \pkg{bm} package that comes with \LaTeX{}
-is recommended instead.
-
-\item[\pkg{amscd}] Provides a \env{CD} environment for simple
-  commutative diagrams (no support for diagonal arrows).
-
-\item[\pkg{amsxtra}] Provides certain odds and ends such as
-  \cn{fracwithdelims} and \cn{accentedsymbol}, for compatibility with
-  documents created using version 1.1.
-
-\end{description}
-
-The \pkg{amsmath} package incorporates \pkg{amstext}, \pkg{amsopn}, and
-\pkg{amsbsy}. The features of \pkg{amscd} and \pkg{amsxtra}, however,
-are available only by invoking those packages separately.
-
-\chapter{Options for the \pkg{amsmath} package}\label{options}
-
-The \pkg{amsmath} package has the following options:
-\begin{description}
-
-\item[\opt{centertags}] (default) For a split equation, place equation
-numbers\index{equation numbers!vertical placement} vertically centered
-on the total height of the equation.
-
-\item[\opt{tbtags}] `Top-or-bottom tags': For a split equation, place
-equation numbers\index{equation numbers!vertical placement} level with
-the last (resp.\@ first) line, if numbers are on the right (resp.\@
-left).
-
-\item[\opt{sumlimits}] (default) Place the subscripts and
-superscripts\index{subscripts and superscripts!placement}\relax
-\index{limits|see{subscripts and superscripts}} of summation symbols
-above and below, in displayed equations. This option also affects other
-symbols of the same type\mdash $\prod$, $\coprod$, $\bigotimes$,
-$\bigoplus$, and so forth\mdash but excluding integrals (see below).
-
-\item[\opt{nosumlimits}] Always place the subscripts and superscripts of
-summation-type symbols to the side, even in displayed equations.
-
-\item[\opt{intlimits}] Like \opt{sumlimits}, but for
-integral\index{integrals!placement of limits} symbols.
-
-\item[\opt{nointlimits}] (default) Opposite of \opt{intlimits}.
-
-\item[\opt{namelimits}] (default) Like \opt{sumlimits}, but for certain
-`operator names' such as $\det$, $\inf$, $\lim$, $\max$, $\min$, that
-traditionally have subscripts \index{subscripts and
-superscripts!placement} placed underneath when they occur in a displayed
-equation.
-
-\item[\opt{nonamelimits}] Opposite of \opt{namelimits}.
-
-\end{description}
-
-To use one of these package options, put the option name in the optional
-argument of the \cn{usepackage} command\mdash e.g.,
-\verb"\usepackage[intlimits]{amsmath}".
-
-The \pkg{amsmath} package also recognizes the following options which
-are normally selected (implicitly or explicitly) through the
-\cn{documentclass} command, and thus need not be repeated in the option
-list of the \cn{usepackage}|{amsmath}| statement.
-\begin{description}
-
-\item[\opt{leqno}] Place equation numbers on the left.\index{equation
-numbers!left or right placement}
-
-\item[\opt{reqno}] Place equation numbers on the right.
-
-\item[\opt{fleqn}] Position equations at a fixed indent from the left
-margin rather than centered in the text column.\index{displayed
-equations!centering}
-
-\end{description}
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\chapter{Displayed equations}
-
-\section{Introduction}
-The \pkg{amsmath} package provides a number of additional displayed
-equation structures\index{displayed
-  equations}\index{equations|see{displayed equations}} beyond the ones
-provided in basic \latex/. The augmented set includes:
-\begin{verbatim}
-  equation     equation*     align       align*
-  gather       gather*       flalign     flalign*
-  multline     multline*     alignat     alignat*
-  split
-\end{verbatim}
-(Although the standard \env{eqnarray} environment remains available,
-it is better to use \env{align} or \env{equation}+\env{split} instead.)
-
-Except for \env{split}, each environment has both starred and unstarred
-forms, where the unstarred forms have automatic numbering using
-\latex/'s \env{equation} counter. You can suppress the number on any
-particular line by putting \cn{notag} before the \cn{\\}; you can also
-override\index{equation numbers!overriding} it with a tag of your own
-using \cn{tag}|{|\<label>|}|, where \<label> means arbitrary text such
-as |$*$| or |ii| used to \qq{number} the equation. There is also a
-\cn{tag*} command that causes the text you supply to be typeset
-literally, without adding parentheses around it. \cn{tag} and \cn{tag*}
-can also be used within the unnumbered versions of all the \pkg{amsmath}
-alignment structures. Some examples of the use of \cn{tag} may be found
-in the sample files \fn{testmath.tex} and \fn{subeqn.tex} provided with
-the \pkg{amsmath} package.
-
-The \env{split} environment is a special subordinate form that is used
-only \emph{inside} one of the others. It cannot be used inside
-\env{multline}, however.
-
-In the structures that do alignment (\env{split}, \env{align} and
-variants), relation symbols have an \verb'&' before them but not
-after\mdash unlike \env{eqnarray}. Putting the \verb'&' after the
-relation symbol will interfere with the normal spacing; it has to go
-before.
-
-\begin{table}[p]
-\caption[]{Comparison of displayed equation environments (vertical lines
-indicating nominal margins)}\label{displays}
-\renewcommand{\theequation}{\arabic{equation}}
-\begin{eqxample}
-\begin{verbatim}
-\begin{equation*}
-a=b
-\end{equation*}
-\end{verbatim}
-\producing
-\begin{equation*}
-a=b
-\end{equation*}
-\end{eqxample}
-
-\begin{eqxample}
-\begin{verbatim}
-\begin{equation}
-a=b
-\end{equation}
-\end{verbatim}
-\producing
-\begin{equation}
-a=b
-\end{equation}
-\end{eqxample}
-
-\begin{eqxample}
-\begin{verbatim}
-\begin{equation}\label{xx}
-\begin{split}
-a& =b+c-d\\
- & \quad +e-f\\
- & =g+h\\
- & =i
-\end{split}
-\end{equation}
-\end{verbatim}
-\producing
-\begin{equation}\label{xx}
-\begin{split}
-a& =b+c-d\\
- & \quad +e-f\\
- & =g+h\\
- & =i
-\end{split}
-\end{equation}
-\end{eqxample}
-
-\begin{eqxample}
-\begin{verbatim}
-\begin{multline}
-a+b+c+d+e+f\\
-+i+j+k+l+m+n
-\end{multline}
-\end{verbatim}
-\producing
-\begin{multline}
-a+b+c+d+e+f\\
-+i+j+k+l+m+n
-\end{multline}
-\end{eqxample}
-
-\begin{eqxample}
-\begin{verbatim}
-\begin{gather}
-a_1=b_1+c_1\\
-a_2=b_2+c_2-d_2+e_2
-\end{gather}
-\end{verbatim}
-\producing
-\begin{gather}
-a_1=b_1+c_1\\
-a_2=b_2+c_2-d_2+e_2
-\end{gather}
-\end{eqxample}
-
-\begin{eqxample}
-\begin{verbatim}
-\begin{align}
-a_1& =b_1+c_1\\
-a_2& =b_2+c_2-d_2+e_2
-\end{align}
-\end{verbatim}
-\producing
-\begin{align}
-a_1& =b_1+c_1\\
-a_2& =b_2+c_2-d_2+e_2
-\end{align}
-\end{eqxample}
-
-\begin{eqxample}
-\begin{verbatim}
-\begin{align}
-a_{11}& =b_{11}&
-  a_{12}& =b_{12}\\
-a_{21}& =b_{21}&
-  a_{22}& =b_{22}+c_{22}
-\end{align}
-\end{verbatim}
-\producing
-\begin{align}
-a_{11}& =b_{11}&
-  a_{12}& =b_{12}\\
-a_{21}& =b_{21}&
-  a_{22}& =b_{22}+c_{22}
-\end{align}
-\end{eqxample}
-
-\begin{eqxample}
-\begin{verbatim}
-\begin{flalign*}
-a_{11}& =b_{11}&
-  a_{12}& =b_{12}\\
-a_{21}& =b_{21}&
-  a_{22}& =b_{22}+c_{22}
-\end{flalign*}
-\end{verbatim}
-\producing
-\begin{flalign*}
-a_{11}& =b_{11}&
-  a_{12}& =b_{12}\\
-a_{21}& =b_{21}&
-  a_{22}& =b_{22}+c_{22}
-\end{flalign*}
-\end{eqxample}
-\end{table}
-
-\section{Single equations}
-
-The \env{equation} environment is for a single equation with an
-automatically generated number. The \env{equation*} environment is the
-same except for omitting the number.%
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\footnote{Basic \latex/ doesn't provide an \env{equation*} environment,
-but rather a functionally equivalent environment named
-\env{displaymath}.}
-
-\section{Split equations without alignment}
-
-The \env{multline} environment is a variation of the \env{equation}
-environment used for equations that don't fit on a single line. The
-first line of a \env{multline} will be at the left margin and the last
-line at the right margin, except for an indention on both sides in the
-amount of \cn{multlinegap}. Any additional lines in between will be
-centered independently within the display width (unless the \opt{fleqn}
-option is in effect).
-
-Like \env{equation}, \env{multline} has only a single equation number
-(thus, none of the individual lines should be marked with \cn{notag}).
-The equation number is placed on the last line (\opt{reqno} option) or
-first line (\opt{leqno} option); vertical centering as for \env{split}
-is not supported by \env{multline}.
-
-It's possible to force one of the middle lines to the left or right with
-commands \cn{shoveleft}, \cn{shoveright}. These commands take the entire
-line as an argument, up to but not including the final \cn{\\}; for
-example
-\begin{multline}
-\framebox[.65\columnwidth]{A}\\
-\framebox[.5\columnwidth]{B}\\
-\shoveright{\framebox[.55\columnwidth]{C}}\\
-\framebox[.65\columnwidth]{D}
-\end{multline}
-\begin{verbatim}
-\begin{multline}
-\framebox[.65\columnwidth]{A}\\
-\framebox[.5\columnwidth]{B}\\
-\shoveright{\framebox[.55\columnwidth]{C}}\\
-\framebox[.65\columnwidth]{D}
-\end{multline}
-\end{verbatim}
-
-The value of \cn{multlinegap} can be changed with the usual \latex/
-commands \cn{setlength} or \cn{addtolength}.
-
-\section{Split equations with alignment}
-
-Like \env{multline}, the \env{split} environment is for \emph{single}
-equations that are too long to fit on one line and hence must be split
-into multiple lines.  Unlike \env{multline}, however, the \env{split}
-environment provides for alignment among the split lines, using |&| to
-mark alignment points. Unlike the other \pkg{amsmath} equation
-structures, the \env{split} environment provides no numbering, because
-it is intended to be used \emph{only inside some other displayed
-  equation structure}, usually an \env{equation}, \env{align}, or
-\env{gather} environment, which provides the numbering. For example:
-\begin{equation}\label{e:barwq}\begin{split}
-H_c&=\frac{1}{2n} \sum^n_{l=0}(-1)^{l}(n-{l})^{p-2}
-\sum_{l _1+\dots+ l _p=l}\prod^p_{i=1} \binom{n_i}{l _i}\\
-&\quad\cdot[(n-l )-(n_i-l _i)]^{n_i-l _i}\cdot
-\Bigl[(n-l )^2-\sum^p_{j=1}(n_i-l _i)^2\Bigr].
-\kern-2em % adjust equation body to the right [mjd,13-Nov-1994]
-\end{split}\end{equation}
-
-\begin{verbatim}
-\begin{equation}\label{e:barwq}\begin{split}
-H_c&=\frac{1}{2n} \sum^n_{l=0}(-1)^{l}(n-{l})^{p-2}
-\sum_{l _1+\dots+ l _p=l}\prod^p_{i=1} \binom{n_i}{l _i}\\
-&\quad\cdot[(n-l )-(n_i-l _i)]^{n_i-l _i}\cdot
-\Bigl[(n-l )^2-\sum^p_{j=1}(n_i-l _i)^2\Bigr].
-\end{split}\end{equation}
-\end{verbatim}
-
-The \env{split} structure should constitute the entire body of the
-enclosing structure, apart from commands like \cn{label} that produce no
-visible material.
-
-\section{Equation groups without alignment}
-
-The \env{gather} environment is used for a group of consecutive
-equations when there is no alignment desired among them; each one is
-centered separately within the text width (see Table~\ref{displays}).
-Equations inside \env{gather} are separated by a \cn{\\} command.
-Any equation in a \env{gather} may consist of a \verb'\begin{split}'
-  \dots\ \verb'\end{split}' structure\mdash for example:
-\begin{verbatim}
-\begin{gather}
-  first equation\\
-  \begin{split}
-    second & equation\\
-           & on two lines
-  \end{split}
-  \\
-  third equation
-\end{gather}
-\end{verbatim}
-
-\section{Equation groups with mutual alignment}
-
-The \env{align} environment is used for two or more equations when
-vertical alignment is desired; usually binary relations such as equal
-signs are aligned (see Table~\ref{displays}).
-
-To have several equation columns side-by-side, use extra ampersands
-to separate the columns:
-\begin{align}
-x&=y       & X&=Y       & a&=b+c\\
-x'&=y'     & X'&=Y'     & a'&=b\\
-x+x'&=y+y' & X+X'&=Y+Y' & a'b&=c'b
-\end{align}
-%
-\begin{verbatim}
-\begin{align}
-x&=y       & X&=Y       & a&=b+c\\
-x'&=y'     & X'&=Y'     & a'&=b\\
-x+x'&=y+y' & X+X'&=Y+Y' & a'b&=c'b
-\end{align}
-\end{verbatim}
-Line-by-line annotations on an equation can be done by judicious
-application of \cn{text} inside an \env{align} environment:
-\begin{align}
-x& = y_1-y_2+y_3-y_5+y_8-\dots
-                    && \text{by \eqref{eq:C}}\\
- & = y'\circ y^*    && \text{by \eqref{eq:D}}\\
- & = y(0) y'        && \text {by Axiom 1.}
-\end{align}
-%
-\begin{verbatim}
-\begin{align}
-x& = y_1-y_2+y_3-y_5+y_8-\dots
-                    && \text{by \eqref{eq:C}}\\
- & = y'\circ y^*    && \text{by \eqref{eq:D}}\\
- & = y(0) y'        && \text {by Axiom 1.}
-\end{align}
-\end{verbatim}
-A variant environment \env{alignat} allows the horizontal space between
-equations to be explicitly specified. This environment takes one argument,
-the number of \qq{equation columns}: count the maximum number of \verb'&'s
-in any row, add 1 and divide by 2.
-\begin{alignat}{2}
-x& = y_1-y_2+y_3-y_5+y_8-\dots
-                  &\quad& \text{by \eqref{eq:C}}\\
- & = y'\circ y^*  && \text{by \eqref{eq:D}}\\
- & = y(0) y'      && \text {by Axiom 1.}
-\end{alignat}
-%
-\begin{verbatim}
-\begin{alignat}{2}
-x& = y_1-y_2+y_3-y_5+y_8-\dots
-                  &\quad& \text{by \eqref{eq:C}}\\
- & = y'\circ y^*  && \text{by \eqref{eq:D}}\\
- & = y(0) y'      && \text {by Axiom 1.}
-\end{alignat}
-\end{verbatim}
-
-\section{Alignment building blocks}
-
-Like \env{equation}, the multi-equation environments \env{gather},
-\env{align}, and \env{alignat} are designed to produce a structure
-whose width is the full line width. This means, for example, that one
-cannot readily add parentheses around the entire structure. But variants
-\env{gathered}, \env{aligned}, and \env{alignedat} are provided whose
-total width is the actual width of the contents; thus they can be used
-as a component in a containing expression. E.g.,
-\begin{equation*}
-\left.\begin{aligned}
-  B'&=-\partial\times E,\\
-  E'&=\partial\times B - 4\pi j,
-\end{aligned}
-\right\}
-\qquad \text{Maxwell's equations}
-\end{equation*}
-\begin{verbatim}
-\begin{equation*}
-\left.\begin{aligned}
-  B'&=-\partial\times E,\\
-  E'&=\partial\times B - 4\pi j,
-\end{aligned}
-\right\}
-\qquad \text{Maxwell's equations}
-\end{equation*}
-\end{verbatim}
-Like the \env{array} environment, these \texttt{-ed} variants also take
-an optional \verb'[t]' or \verb'[b]' argument to specify vertical
-positioning.
-
-\qq{Cases} constructions like the following are common in
-mathematics:
-\begin{equation}\label{eq:C}
-P_{r-j}=
-  \begin{cases}
-    0&  \text{if $r-j$ is odd},\\
-    r!\,(-1)^{(r-j)/2}&  \text{if $r-j$ is even}.
-  \end{cases}
-\end{equation}
-and in the \pkg{amsmath} package there is a \env{cases} environment to
-make them easy to write:
-\begin{verbatim}
-P_{r-j}=\begin{cases}
-    0&  \text{if $r-j$ is odd},\\
-    r!\,(-1)^{(r-j)/2}&  \text{if $r-j$ is even}.
-  \end{cases}
-\end{verbatim}
-Notice the use of \cn{text} (cf.~\secref{text}) and the nested
-math formulas.
-
-\section{Adjusting tag placement}
-
-Placing equation numbers can be a rather complex problem in multiline
-displays. The environments of the \pkg{amsmath} package try hard to
-avoid overprinting an equation number on the equation contents, if
-necessary moving the number down or up to a separate line. Difficulties
-in accurately calculating the profile of an equation can occasionally
-result in number movement that doesn't look right. There is a
-\cn{raisetag} command provided to adjust the vertical position of the
-current equation number, if it has been shifted away from its normal
-position. To move a particular number up by six points, write
-|\raisetag{6pt}|. This kind of adjustment is fine tuning like line
-breaks and page breaks, and should therefore be left undone until your
-document is nearly finalized, or you may end up redoing the fine tuning
-several times to keep up with changing document contents.
-
-\section{Vertical spacing and page breaks in multiline displays}
-
-You can use the \cn{\\}|[|\<dimension>|]| command to get extra vertical
-space between lines in all the \pkg{amsmath} displayed equation
-environments, as is usual in \latex/.  When the \pkg{amsmath} package is
-in use \ii{page breaks} between equation lines are normally disallowed;
-the philosophy is that page breaks in such material should receive
-individual attention from the author. To get an individual page break
-inside a particular displayed equation, a \cn{displaybreak} command is
-provided. \cn{displaybreak} is best placed immediately before the
-\cn{\\} where it is to take effect.  Like \latex/'s \cn{pagebreak},
-\cn{displaybreak} takes an optional argument between 0 and 4 denoting
-the desirability of the pagebreak. |\displaybreak[0]| means \qq{it is
-  permissible to break here} without encouraging a break;
-\cn{displaybreak} with no optional argument is the same as
-|\displaybreak[4]| and forces a break.
-
-If you prefer a strategy of letting page breaks fall where they may,
-even in the middle of a multi-line equation, then you might put
-\cn{allowdisplaybreaks}\texttt{[1]} in the preamble of your document. An
-optional argument 1\ndash 4 can be used for finer control: |[1]| means
-allow page breaks, but avoid them as much as possible; values of 2,3,4
-mean increasing permissiveness. When display breaks are enabled with
-\cn{allowdisplaybreaks}, the \cn{\\*} command can be used to prohibit a
-pagebreak after a given line, as usual.
-
-\begin{bfseries}
-Note: Certain equation environments wrap their contents in an
-unbreakable box, with the consequence that neither \cn{displaybreak} nor
-\cn{allowdisplaybreaks} will have any effect on them. These include
-\env{split}, \env{aligned}, \env{gathered}, and \env{alignedat}.
-\end{bfseries}
-
-\section{Interrupting a display}
-
-The command \cn{intertext} is used for a short interjection of one or
-two lines of text\index{text fragments inside math} in the middle of a
-multiple-line display structure (see also the \cn{text} command in
-\secref{text}). Its salient feature is preservation of the alignment,
-which would not happen if you simply ended the display and then started
-it up again afterwards. \cn{intertext} may only appear right after a
-\cn{\\} or \cn{\\*} command. Notice the position of the word \qq{and} in
-this example.
-\begin{align}
-A_1&=N_0(\lambda;\Omega')-\phi(\lambda;\Omega'),\\
-A_2&=\phi(\lambda;\Omega')-\phi(\lambda;\Omega),\\
-\intertext{and}
-A_3&=\mathcal{N}(\lambda;\omega).
-\end{align}
-\begin{verbatim}
-\begin{align}
-A_1&=N_0(\lambda;\Omega')-\phi(\lambda;\Omega'),\\
-A_2&=\phi(\lambda;\Omega')-\phi(\lambda;\Omega),\\
-\intertext{and}
-A_3&=\mathcal{N}(\lambda;\omega).
-\end{align}
-\end{verbatim}
-
-\section{Equation numbering}
-
-\subsection{Numbering hierarchy}
-In \latex/ if you wanted to have equations numbered within
-sections\mdash that is, have
-equation numbers (1.1), (1.2), \dots, (2.1), (2.2),
-\dots, in sections 1, 2, and so forth\mdash you could redefine
-\cn{theequation} as suggested in the \latex/ manual \cite[\S6.3, \S
-C.8.4]{lamport}:
-\begin{verbatim}
-\renewcommand{\theequation}{\thesection.\arabic{equation}}
-\end{verbatim}
-
-This works pretty well, except that the equation counter won't be reset
-to zero at the beginning of a new section or chapter, unless you do it
-yourself using \cn{setcounter}. To make this a little more convenient,
-the \pkg{amsmath} package provides a command\index{equation
-numbers!hierarchy} \cn{numberwithin}. To have equation numbering tied to
-section numbering, with automatic reset of the equation counter, write
-\begin{verbatim}
-\numberwithin{equation}{section}
-\end{verbatim}
-As its name implies, the \cn{numberwithin} command can be applied to
-any counter, not just the \texttt{equation} counter.
-
-\subsection{Cross references to equation numbers}
-
-To make cross-references to equations easier, an \cn{eqref}
-command\index{equation numbers!cross-references} is provided. This
-automatically supplies the parentheses around the equation number. I.e.,
-if \verb'\ref{abc}' produces 3.2 then \verb'\eqref{abc}' produces
-(3.2).
-
-\subsection{Subordinate numbering sequences}
-
-The \pkg{amsmath} package provides also a \env{subequations}
-environment\index{equation numbers!subordinate numbering} to make it
-easy to number equations in a particular group with a subordinate
-numbering scheme. For example
-\begin{verbatim}
-\begin{subequations}
-...
-\end{subequations}
-\end{verbatim}
-causes all numbered equations within that part of the document to be
-numbered (4.9a) (4.9b) (4.9c) \dots, if the preceding numbered
-equation was (4.8). A \cn{label} command immediately after
-\verb/\begin{subequations}/ will produce a \cn{ref} of the parent
-number 4.9, not 4.9a. The counters used by the subequations
-environment are \verb/parentequation/ and \verb/equation/ and
-\cn{addtocounter}, \cn{setcounter}, \cn{value}, etc., can be applied
-as usual to those counter names. To get anything other than lowercase
-letters for the subordinate numbers, use standard \latex/ methods for
-changing numbering style \cite[\S6.3, \S C.8.4]{lamport}. For example,
-redefining \cn{theequation} as follows will produce roman numerals.
-\begin{verbatim}
-\begin{subequations}
-\renewcommand{\theequation}{\theparentequation \roman{equation}}
-...
-\end{verbatim}
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\chapter{Miscellaneous mathematical features}
-
-\section{Matrices}\label{ss:matrix}
-
-The \pkg{amsmath} package provides some environments for
-matrices\index{matrices} beyond the basic \env{array} environment of
-\latex/. The \env{pmatrix}, \env{bmatrix}, \env{Bmatrix}, \env{vmatrix}
-and \env{Vmatrix} have (respectively) $(\,)$, $[\,]$, $\lbrace\,\rbrace$,
-$\lvert\,\rvert$, and
-$\lVert\,\rVert$ delimiters built in. For naming consistency there is a
-\env{matrix} environment sans delimiters. This is not entirely redundant
-with the \env{array} environment; the matrix environments all use more
-economical horizontal spacing than the rather prodigal spacing of the
-\env{array} environment. Also, unlike the \env{array} environment, you
-don't have to give column specifications for any of the matrix
-environments; by default you can have up to 10 centered columns.%
-\footnote{%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-More precisely: The maximum number of columns in a matrix is determined
-by the counter |MaxMatrixCols| (normal value = 10), which you can change
-if necessary using \latex/'s \cn{setcounter} or \cn{addtocounter}
-commands.%
-}\space%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-(If you need left or right alignment in a column or other special
-formats you must resort to \env{array}.)
-
-To produce a small matrix suitable for use in text, there is a
-\env{smallmatrix} environment (e.g.,
-\begin{math}
-\bigl( \begin{smallmatrix}
-  a&b\\ c&d
-\end{smallmatrix} \bigr)
-\end{math})
-that comes closer to fitting within a single text line than a normal
-matrix. Delimiters must be provided; there are no |p|,|b|,|B|,|v|,|V|
-versions of \env{smallmatrix}. The above example was produced by
-\begin{verbatim}
-\bigl( \begin{smallmatrix}
-  a&b\\ c&d
-\end{smallmatrix} \bigr)
-\end{verbatim}
-
-\cn{hdotsfor}|{|\<number>|}| produces a row of dots in a
-matrix\index{matrices!ellipsis dots}\index{ellipsis dots!in
-matrices}\index{dots|see{ellipsis dots}} spanning the given number of
-columns. For example,
-\begin{center}
-\begin{minipage}{.3\columnwidth}
-\noindent$\begin{matrix} a&b&c&d\\
-e&\hdotsfor{3} \end{matrix}$
-\end{minipage}%
-\qquad
-\begin{minipage}{.45\columnwidth}
-\begin{verbatim}
-\begin{matrix} a&b&c&d\\
-e&\hdotsfor{3} \end{matrix}
-\end{verbatim}
-\end{minipage}%
-\end{center}
-
-The spacing of the dots can be varied through use of a square-bracket
-option, for example, |\hdotsfor[1.5]{3}|.  The number in square brackets
-will be used as a multiplier (i.e., the normal value is 1.0).
-\begin{equation}\label{eq:D}
-\begin{pmatrix} D_1t&-a_{12}t_2&\dots&-a_{1n}t_n\\
--a_{21}t_1&D_2t&\dots&-a_{2n}t_n\\
-\hdotsfor[2]{4}\\
--a_{n1}t_1&-a_{n2}t_2&\dots&D_nt\end{pmatrix},
-\end{equation}
-\begin{verbatim}
-\begin{pmatrix} D_1t&-a_{12}t_2&\dots&-a_{1n}t_n\\
--a_{21}t_1&D_2t&\dots&-a_{2n}t_n\\
-\hdotsfor[2]{4}\\
--a_{n1}t_1&-a_{n2}t_2&\dots&D_nt\end{pmatrix}
-\end{verbatim}
-
-\section{Math spacing commands}
-
-The \pkg{amsmath} package slightly extends the set of math
-spacing\index{horizontal space!in math mode} commands, as shown below.
-Both the spelled-out and abbreviated forms of these commands are robust,
-and they can also be used outside of math.
-\begin{ctab}{lll|lll}
-Abbrev.& Spelled out& Example & Abbrev.& Spelled out& Example\\
-\hline
-\vstrut{2.5ex}
-& no space& \spx{}& & no space & \spx{}\\
-\cn{\,}& \cn{thinspace}& \spx{\,}&
-  \cnbang& \cn{negthinspace}& \spx{\!}\\
-\cn{\:}& \cn{medspace}& \spx{\:}&
-  & \cn{negmedspace}& \spx{\negmedspace}\\
-\cn{\;}& \cn{thickspace}& \spx{\;}&
-  & \cn{negthickspace}& \spx{\negthickspace}\\
-& \cn{quad}& \spx{\quad}\\
-& \cn{qquad}& \spx{\qquad}
-\end{ctab}
-For the greatest possible control over math spacing, use \cn{mspace}
-and `math units'. One math unit, or |mu|, is equal to 1/18 em. Thus to
-get a negative \cn{quad} you could write |\mspace{-18.0mu}|.
-
-\section{Dots}
-
-For preferred placement of ellipsis dots (raised or on-line) in various
-contexts there is no general consensus. It may therefore be considered a
-matter of taste. By using the semantically oriented commands
-\begin{itemize}
-\item \cn{dotsc} for \qq{dots with commas}
-\item \cn{dotsb} for \qq{dots with binary operators/relations}
-\item \cn{dotsm} for \qq{multiplication dots}
-\item \cn{dotsi} for \qq{dots with integrals}
-\item \cn{dotso} for \qq{other dots} (none of the above)
-\end{itemize}
-instead of \cn{ldots} and \cn{cdots}, you make it possible for your
-document to be adapted to different conventions on the fly, in case (for
-example) you have to submit it to a publisher who insists on following
-house tradition in this respect. The default treatment for the various
-kinds follows American Mathematical Society conventions:
-\begin{center}
-\begin{tabular}{@{}l@{}l@{}}
-\begin{minipage}[t]{.54\textwidth}
-\begin{verbatim}
-Then we have the series $A_1, A_2,
-\dotsc$, the regional sum $A_1
-+A_2 +\dotsb $, the orthogonal
-product $A_1 A_2 \dotsm $, and
-the infinite integral
-\[\int_{A_1}\int_{A_2}\dotsi\].
-\end{verbatim}
-\end{minipage}
-&
-\begin{minipage}[t]{.45\textwidth}
-\noindent
-Then we have the series $A_1,A_2,\dotsc$,
-the regional sum $A_1+A_2+\dotsb$,
-the orthogonal product $A_1A_2\dotsm$,
-and the infinite integral
-\[\int_{A_1}\int_{A_2}\dotsi.\]
-\end{minipage}
-\end{tabular}
-\end{center}
-
-\section{Nonbreaking dashes}
-
-A command \cn{nobreakdash} is provided to suppress the possibility
-of a linebreak after the following hyphen or dash. For example, if you
-write `pages 1\ndash 9' as |pages 1\nobreakdash--9| then a linebreak will
-never occur between the dash and the 9. You can also use
-\cn{nobreakdash} to prevent undesirable hyphenations in combinations
-like |$p$-adic|. For frequent use, it's advisable to make abbreviations,
-e.g.,
-\begin{verbatim}
-\newcommand{\p}{$p$\nobreakdash}% for "\p-adic"
-\newcommand{\Ndash}{\nobreakdash--}% for "pages 1\Ndash 9"
-%    For "\n dimensional" ("n-dimensional"):
-\newcommand{\n}[1]{$n$\nobreakdash-\hspace{0pt}}
-\end{verbatim}
-The last example shows how to prohibit a linebreak after the hyphen but
-allow normal hyphenation in the following word. (It suffices to add a
-zero-width space after the hyphen.)
-
-\section{Accents in math}
-
-In ordinary \LaTeX{} the placement of the second accent in doubled math
-accents is often poor. With the \pkg{amsmath} package you
-will get improved placement of the second accent:
-$\hat{\hat{A}}$ (\cn{hat}|{\hat{A}}|).
-
-The commands \cn{dddot} and \cn{ddddot} are available to produce triple
-and quadruple dot accents in addition to the \cn{dot} and \cn{ddot}
-accents already available in \latex/.
-
-To get a superscripted hat or tilde character, load the \pkg{amsxtra}
-package and use \cn{sphat} or \cn{sptilde}. Usage is \verb'A\sphat'
-(note the absence of the \verb'^' character).
-
-To place an arbitrary symbol in math accent position, or to get under
-accents, see the \pkg{accents} package by Javier Bezos.
-
-\section{Roots}
-
-In ordinary \latex/ the placement of root indices is sometimes not so
-good: $\sqrt[\beta]{k}$ (|\sqrt||[\beta]{k}|).  In the
-\pkg{amsmath} package \cn{leftroot} and \cn{uproot} allow you to adjust
-the position of the root:
-\begin{verbatim}
-  \sqrt[\leftroot{-2}\uproot{2}\beta]{k}
-\end{verbatim}
-will move the beta up and to the right:
-$\sqrt[\leftroot{-2}\uproot{2}\beta]{k}$. The negative argument used
-with \cn{leftroot} moves the $\beta$ to the right. The units are a small
-amount that is a useful size for such adjustments.
-
-\section{Boxed formulas}
-
-The command \cn{boxed} puts a box around its
-argument, like \cn{fbox} except that the contents are in math mode:
-\begin{equation}
-\boxed{\eta \leq C(\delta(\eta) +\Lambda_M(0,\delta))}
-\end{equation}
-\begin{verbatim}
-  \boxed{\eta \leq C(\delta(\eta) +\Lambda_M(0,\delta))}
-\end{verbatim}
-
-\section{Over and under arrows}
-
-Basic \latex/ provides \cn{overrightarrow} and \cn{overleftarrow}
-commands. Some additional over and under arrow commands are provided
-by the \pkg{amsmath} package to extend the set:
-
-\begin{tabbing}
-\qquad\=\ncn{overleftrightarrow}\qquad\=\kill
-\> \cn{overleftarrow}    \> \cn{underleftarrow} \+\\
-   \cn{overrightarrow}    \> \cn{underrightarrow} \\
-   \cn{overleftrightarrow}\> \cn{underleftrightarrow}
-\end{tabbing}
-
-\section{Extensible arrows}
-
-\cn{xleftarrow} and \cn{xrightarrow} produce
-arrows\index{arrows!extensible} that extend automatically to accommodate
-unusually wide subscripts or superscripts. These commands take one
-optional argument (the subscript) and one mandatory argument (the
-superscript, possibly empty):
-\begin{equation}
-A\xleftarrow{n+\mu-1}B \xrightarrow[T]{n\pm i-1}C
-\end{equation}
-\begin{verbatim}
-  \xleftarrow{n+\mu-1}\quad \xrightarrow[T]{n\pm i-1}
-\end{verbatim}
-
-\section{Affixing symbols to other symbols}
-
-\latex/ provides \cn{stackrel} for placing a
-superscript\index{subscripts and superscripts} above a binary relation.
-In the \pkg{amsmath} package there are somewhat more general commands,
-\cn{overset} and \cn{underset}, that can be used to place one symbol
-above or below another symbol, whether it's a relation or something
-else. The input |\overset{*}{X}| will place a superscript-size $*$ above
-the $X$: $\overset{*}{X}$; \cn{underset} is the analog for adding a
-symbol underneath.
-
-See also the description of \cn{sideset} in \secref{sideset}.
-
-\section{Fractions and related constructions}
-
-\subsection{The \cn{frac}, \cn{dfrac}, and \cn{tfrac} commands}
-
-The \cn{frac} command, which is in the basic command set of
-\latex/,\index{fractions} takes two arguments\mdash numerator and
-denominator\mdash and typesets them in normal fraction form. The
-\pkg{amsmath} package provides also \cn{dfrac} and \cn{tfrac} as
-convenient abbreviations for |{\displaystyle\frac| |...| |}|
-and\indexcs{textstyle}\relax
-\indexcs{displaystyle} |{\textstyle\frac| |...| |}|.
-\begin{equation}
-\frac{1}{k}\log_2 c(f)\quad\tfrac{1}{k}\log_2 c(f)\quad
-\sqrt{\frac{1}{k}\log_2 c(f)}\quad\sqrt{\dfrac{1}{k}\log_2 c(f)}
-\end{equation}
-\begin{verbatim}
-\begin{equation}
-\frac{1}{k}\log_2 c(f)\;\tfrac{1}{k}\log_2 c(f)\;
-\sqrt{\frac{1}{k}\log_2 c(f)}\;\sqrt{\dfrac{1}{k}\log_2 c(f)}
-\end{equation}
-\end{verbatim}
-
-\subsection{The \cn{binom}, \cn{dbinom}, and \cn{tbinom} commands}
-
-For binomial expressions\index{binomials} such as $\binom{n}{k}$
-\pkg{amsmath} has \cn{binom}, \cn{dbinom} and \cn{tbinom}:
-\begin{equation}
-2^k-\binom{k}{1}2^{k-1}+\binom{k}{2}2^{k-2}
-\end{equation}
-\begin{verbatim}
-2^k-\binom{k}{1}2^{k-1}+\binom{k}{2}2^{k-2}
-\end{verbatim}
-
-\subsection{The \cn{genfrac} command}
-
-The capabilities of \cn{frac}, \cn{binom}, and their variants are
-subsumed by a generalized fraction command \cn{genfrac} with six
-arguments. The last two correspond to \cn{frac}'s numerator and
-denominator; the first two are optional delimiters (as seen in
-\cn{binom}); the third is a line thickness override (\cn{binom} uses
-this to set the fraction line thickness to 0\mdash i.e., invisible); and
-the fourth argument is a mathstyle override: integer values 0\ndash 3 select
-respectively \cn{displaystyle}, \cn{textstyle}, \cn{scriptstyle}, and
-\cn{scriptscriptstyle}. If the third argument is left empty, the line
-thickness defaults to `normal'.
-
-\begin{center}\begin{minipage}{.85\columnwidth}
-\raggedright \normalfont\ttfamily \exhyphenpenalty10000
-\newcommand{\ma}[1]{%
-  \string{{\normalfont\itshape#1}\string}\penalty9999 \ignorespaces}
-\string\genfrac \ma{left-delim} \ma{right-delim} \ma{thickness}
-\ma{mathstyle} \ma{numerator} \ma{denominator}
-\end{minipage}\end{center}
-To illustrate, here is how \cn{frac}, \cn{tfrac}, and
-\cn{binom} might be defined.
-\begin{verbatim}
-\newcommand{\frac}[2]{\genfrac{}{}{}{}{#1}{#2}}
-\newcommand{\tfrac}[2]{\genfrac{}{}{}{1}{#1}{#2}}
-\newcommand{\binom}[2]{\genfrac{(}{)}{0pt}{}{#1}{#2}}
-\end{verbatim}
-If you find yourself repeatedly using \cn{genfrac} throughout a document
-for a particular notation, you will do yourself a favor (and your
-publisher) if you define a meaningfully-named abbreviation for that
-notation, along the lines of \cn{frac} and \cn{binom}.
-
-The primitive generalized fraction commands \cs{over}, \cs{overwithdelims},
-\cs{atop}, \cs{atopwithdelims}, \cs{above}, \cs{abovewithdelims} produce
-warning  messages if used with the \pkg{amsmath} package, for reasons
-discussed in \fn{technote.tex}.
-
-\section{Continued fractions}
-
-The continued fraction\index{continued fractions}
-\begin{equation}
-\cfrac{1}{\sqrt{2}+
- \cfrac{1}{\sqrt{2}+
-  \cfrac{1}{\sqrt{2}+\cdots
-}}}
-\end{equation}
-can be obtained by typing
-{\samepage
-\begin{verbatim}
-\cfrac{1}{\sqrt{2}+
- \cfrac{1}{\sqrt{2}+
-  \cfrac{1}{\sqrt{2}+\dotsb
-}}}
-\end{verbatim}
-}% End of \samepage
-This produces better-looking results than straightforward use of
-\cn{frac}. Left or right placement of any of the numerators is
-accomplished by using \cn{cfrac}|[l]| or \cn{cfrac}|[r]| instead of
-\cn{cfrac}.
-
-\section{Smash options}
-
-The command \cn{smash} is used to typeset a subformula with an effective height and depth of zero, which is sometimes
-useful in adjusting the subformula's position with respect to adjacent
-symbols. With the \pkg{amsmath} package \cn{smash} has optional
-arguments |t| and |b|, because occasionally it is advantageous to be
-able to \qq{smash} only the top or only the bottom of something while
-retaining the natural depth or height. For example, when adjacent
-radical symbols are unevenly sized or positioned because of differences
-in the height and depth of their contents, \cn{smash} can be employed to
-make them more consistent. Compare
-$\sqrt{x}+\sqrt{y}+\sqrt{z}$ and $\sqrt{x}+\sqrt{\smash[b]{y}}+\sqrt{z}$,
-where the latter was produced by
-\verb"$\sqrt{x}" \verb"+"
-\verb"\sqrt{"\5\verb"\smash[b]{y}}" \verb"+" \verb"\sqrt{z}$".
-
-\section{Delimiters}
-
-\subsection{Delimiter sizes}\label{bigdel}
-
-The automatic delimiter sizing done by \cn{left} and \cn{right} has two
-limitations: First, it is applied mechanically to produce delimiters
-large enough to encompass the largest contained item, and second, the
-range of sizes is not even approximately continuous but has fairly large
-quantum jumps. This means that a math fragment that is infinitesimally
-too large for a given delimiter size will get the next larger size, a
-jump of 3pt or so in normal-sized text. There are two or three
-situations where the delimiter size is commonly adjusted, using a set of
-commands that have `big' in their names.
-\begin{ctab}{l|llllll}
-Delimiter&
-  text& \ncn{left}& \ncn{bigl}& \ncn{Bigl}& \ncn{biggl}& \ncn{Biggl}\\
-size&
-  size& \ncn{right}& \ncn{bigr}& \ncn{Bigr}& \ncn{biggr}& \ncn{Biggr}\\
-\hline
-Result\vstrut{5ex}&
-  $\displaystyle(b)(\frac{c}{d})$&
-  $\displaystyle\left(b\right)\left(\frac{c}{d}\right)$&
-  $\displaystyle\bigl(b\bigr)\bigl(\frac{c}{d}\bigr)$&
-  $\displaystyle\Bigl(b\Bigr)\Bigl(\frac{c}{d}\Bigr)$&
-  $\displaystyle\biggl(b\biggr)\biggl(\frac{c}{d}\biggr)$&
-  $\displaystyle\Biggl(b\Biggr)\Biggl(\frac{c}{d}\Biggr)$
-\end{ctab}
-The first kind of situation is a cumulative operator with limits above
-and below. With \cn{left} and \cn{right} the delimiters usually turn out
-larger than necessary, and using the |Big| or |bigg|
-sizes\index{big@\cn{big}, \cn{Big}, \cn{bigg}, \dots\ delimiters}
-instead gives better results:
-\begin{equation*}
-\left[\sum_i a_i\left\lvert\sum_j x_{ij}\right\rvert^p\right]^{1/p}
-\quad\text{versus}\quad
-\biggl[\sum_i a_i\Bigl\lvert\sum_j x_{ij}\Bigr\rvert^p\biggr]^{1/p}
-\end{equation*}
-\begin{verbatim}
-\biggl[\sum_i a_i\Bigl\lvert\sum_j x_{ij}\Bigr\rvert^p\biggr]^{1/p}
-\end{verbatim}
-The second kind of situation is clustered pairs of delimiters where
-\cn{left} and \cn{right} make them all the same size (because that is
-adequate to cover the encompassed material) but what you really want
-is to make some of the delimiters slightly larger to make the nesting
-easier to see.
-\begin{equation*}
-\left((a_1 b_1) - (a_2 b_2)\right)
-\left((a_2 b_1) + (a_1 b_2)\right)
-\quad\text{versus}\quad
-\bigl((a_1 b_1) - (a_2 b_2)\bigr)
-\bigl((a_2 b_1) + (a_1 b_2)\bigr)
-\end{equation*}
-\begin{verbatim}
-\left((a_1 b_1) - (a_2 b_2)\right)
-\left((a_2 b_1) + (a_1 b_2)\right)
-\quad\text{versus}\quad
-\bigl((a_1 b_1) - (a_2 b_2)\bigr)
-\bigl((a_2 b_1) + (a_1 b_2)\bigr)
-\end{verbatim}
-The third kind of situation is a slightly oversize object in running
-text, such as $\left\lvert\frac{b'}{d'}\right\rvert$ where the
-delimiters produced by \cn{left} and \cn{right} cause too much line
-spreading. In that case \ncn{bigl} and \ncn{bigr}\index{big@\cn{big},
-\cn{Big}, \cn{bigg}, \dots\ delimiters} can be used to produce
-delimiters that are slightly larger than the base size but still able to
-fit within the normal line spacing:
-$\bigl\lvert\frac{b'}{d'}\bigr\rvert$.
-
-In ordinary \latex/ \ncn{big}, \ncn{bigg}, \ncn{Big}, and \ncn{Bigg}
-delimiters aren't scaled properly over the full range of \latex/ font
-sizes.  With the \pkg{amsmath} package they are.
-
-\subsection{Vertical bar notations}
-
-The \pkg{amsmath} package provides commands \cn{lvert}, \cn{rvert},
-\cn{lVert}, \cn{rVert} (compare \cn{langle}, \cn{rangle}) to address the
-problem of overloading for the vert bar character \qc{\|}. This
-character is currently used in \latex/ documents to represent a wide
-variety of mathematical objects: the `divides' relation in a
-number-theory expression like $p\vert q$, or the absolute-value
-operation $\lvert z\rvert$, or the `such that' condition in set
-notation, or the `evaluated at' notation $f_\zeta(t)\bigr\rvert_{t=0}$.
-The multiplicity of uses in itself is not so bad; what is bad, however,
-is that fact that not all of the uses take the same typographical
-treatment, and that the complex discriminatory powers of a knowledgeable
-reader cannot be replicated in computer processing of mathematical
-documents. It is recommended therefore that there should be a one-to-one
-correspondence in any given document between the vert bar character
-\qc{\|} and a selected mathematical notation, and similarly for the
-double-bar command \ncn{\|}\index{"|@\verb"*+"\"|+}. This immediately
-rules out the use of \qc{|}
-and \ncn{\|}\index{"|@\verb"*+"\"|+} for delimiters, because left and right
-delimiters are distinct usages that do not relate in the same way to
-adjacent symbols; recommended practice is therefore to define suitable
-commands in the document preamble for any paired-delimiter use of vert
-bar symbols:
-\begin{verbatim}
-\providecommand{\abs}[1]{\lvert#1\rvert}
-\providecommand{\norm}[1]{\lVert#1\rVert}
-\end{verbatim}
-whereupon the document would contain |\abs{z}| to produce $\lvert
-z\rvert$ and |\norm{v}| to produce $\lVert v\rVert$.
-
-\chapter{Operator names}
-
-\section{Defining new operator names}\label{s:opname}
-
-Math functions\index{operator names}\relax \index{function
-names|see{operator names}} such as $\log$, $\sin$, and $\lim$ are
-traditionally typeset in roman type to make them visually more distinct
-from one-letter math variables, which are set in math italic. The more
-common ones have predefined names, \cn{log}, \cn{sin}, \cn{lim}, and so
-forth, but new ones come up all the time in mathematical papers, so the
-\pkg{amsmath} package provides a general mechanism for defining new
-`operator names'. To define a math function \ncn{xxx} to work like
-\cn{sin}, you write
-\begin{verbatim}
-\DeclareMathOperator{\xxx}{xxx}
-\end{verbatim}
-whereupon ensuing uses of \ncn{xxx} will produce {\upshape xxx} in the
-proper font and automatically add proper spacing\index{horizontal
-space!around operator names} on either side when necessary, so that you
-get $A\xxx B$ instead of $A\mathrm{xxx}B$. In the second argument of
-\cn{DeclareMathOperator} (the name text), a pseudo-text mode prevails:
-the hyphen character \qc{\-} will print as a text hyphen rather than a
-minus sign and an asterisk \qc{\*} will print as a raised text asterisk
-instead of a centered math star. (Compare
-\textit{a}-\textit{b}*\textit{c} and $a-b*c$.) But otherwise the name
-text is printed in math mode, so that you can use, e.g., subscripts and
-superscripts there.
-
-If the new operator should have subscripts and superscripts placed in
-`limits' position above and below as with $\lim$, $\sup$, or $\max$, use
-the \qc{\*} form of the \cn{DeclareMathOperator} command:
-\begin{verbatim}
-\DeclareMathOperator*{\Lim}{Lim}
-\end{verbatim}
-See also the discussion of subscript placement in
-Section~\ref{subplace}.
-
-The following operator names are predefined:
-\begin{ctab}{rlrlrlrl}
-\cn{arccos}& $\arccos$ &\cn{deg}& $\deg$ &      \cn{lg}& $\lg$ &        \cn{projlim}& $\projlim$\\
-\cn{arcsin}& $\arcsin$ &\cn{det}& $\det$ &      \cn{lim}& $\lim$ &      \cn{sec}& $\sec$\\
-\cn{arctan}& $\arctan$ &\cn{dim}& $\dim$ &      \cn{liminf}& $\liminf$ &\cn{sin}& $\sin$\\
-\cn{arg}& $\arg$ &      \cn{exp}& $\exp$ &      \cn{limsup}& $\limsup$ &\cn{sinh}& $\sinh$\\
-\cn{cos}& $\cos$ &      \cn{gcd}& $\gcd$ &      \cn{ln}& $\ln$ &        \cn{sup}& $\sup$\\
-\cn{cosh}& $\cosh$ &    \cn{hom}& $\hom$ &      \cn{log}& $\log$ &      \cn{tan}& $\tan$\\
-\cn{cot}& $\cot$ &      \cn{inf}& $\inf$ &      \cn{max}& $\max$ &      \cn{tanh}& $\tanh$\\
-\cn{coth}& $\coth$ &    \cn{injlim}& $\injlim$ &\cn{min}& $\min$\\
-\cn{csc}& $\csc$ &      \cn{ker}& $\ker$ &      \cn{Pr}& $\Pr$
-\end{ctab}
-\begin{ctab}{rlrl}
-\cn{varlimsup}&  $\displaystyle\varlimsup$&
-  \cn{varinjlim}&  $\displaystyle\varinjlim$\\
-\cn{varliminf}&  $\displaystyle\varliminf$&
-  \cn{varprojlim}& $\displaystyle\varprojlim$
-\end{ctab}
-
-There is also a command \cn{operatorname} such that using
-\begin{verbatim}
-\operatorname{abc}
-\end{verbatim}
-in a math formula is equivalent to a use of \ncn{abc} defined by
-\cn{DeclareMathOperator}. This may be occasionally useful for
-constructing more complex notation or other purposes. (Use the variant
-\cn{operatorname*} to get limits.)
-
-\section{\cn{mod} and its relatives}
-
-Commands \cn{mod}, \cn{bmod}, \cn{pmod}, \cn{pod} are provided to deal
-with the special spacing conventions of \qq{mod} notation. \cn{bmod} and
-\cn{pmod} are available in \latex/, but with the \pkg{amsmath} package
-the spacing of \cn{pmod} will adjust to a smaller value if it's used in
-a non-display-mode formula. \cn{mod} and \cn{pod} are variants of
-\cn{pmod} preferred by some authors; \cn{mod} omits the parentheses,
-whereas \cn{pod} omits the \qq{mod} and retains the parentheses.
-\begin{equation}
-\gcd(n,m\bmod n);\quad x\equiv y\pmod b;
-\quad x\equiv y\mod c;\quad x\equiv y\pod d
-\end{equation}
-\begin{verbatim}
-\gcd(n,m\bmod n);\quad x\equiv y\pmod b;
-\quad x\equiv y\mod c;\quad x\equiv y\pod d
-\end{verbatim}
-
-\chapter{The \cn{text} command}\label{text}
-
-The main use of the command \cn{text} is for words or
-phrases\index{text fragments inside math} in a display. It is very
-similar to the \latex/ command \cn{mbox} in its effects, but has a
-couple of advantages. If you want a word or phrase of text in a
-subscript, you can type |..._{\text{word or phrase}}|, which is slightly
-easier than the \cn{mbox} equivalent: |..._{\mbox{\scriptsize| |word|
-|or| |phrase}}|. The other advantage is the more descriptive name.
-\begin{equation}
-f_{[x_{i-1},x_i]} \text{ is monotonic,}
-\quad i = 1,\dots,c+1
-\end{equation}
-\begin{verbatim}
-f_{[x_{i-1},x_i]} \text{ is monotonic,}
-\quad i = 1,\dots,c+1
-\end{verbatim}
-
-\chapter{Integrals and sums}
-
-\section{Multiline subscripts and superscripts}
-
-The \cn{substack} command can be used to produce a multiline subscript
-or superscript:\index{subscripts and superscripts!multi-line}\relax
-\index{superscripts|see{subscripts and superscripts}} for example
-\begin{ctab}{ll}
-\begin{minipage}[t]{.6\columnwidth}
-\begin{verbatim}
-\sum_{\substack{
-         0\le i\le m\\
-         0<j<n}}
-  P(i,j)
-\end{verbatim}
-\end{minipage}
-&
-$\displaystyle
-\sum_{\substack{0\le i\le m\\ 0<j<n}} P(i,j)$
-\end{ctab}
-A slightly more generalized form is the \env{subarray} environment which
-allows you to specify that each line should be left-aligned instead of
-centered, as here:
-\begin{ctab}{ll}
-\begin{minipage}[t]{.6\columnwidth}
-\begin{verbatim}
-\sum_{\begin{subarray}{l}
-        i\in\Lambda\\ 0<j<n
-      \end{subarray}}
- P(i,j)
-\end{verbatim}
-\end{minipage}
-&
-$\displaystyle
-  \sum_{\begin{subarray}{l}
-        i\in \Lambda\\ 0<j<n
-      \end{subarray}}
- P(i,j)$
-\end{ctab}
-
-\section{The \cn{sideset} command}\label{sideset}
-
-There's also a command called \cn{sideset}, for a rather special
-purpose: putting symbols at the subscript and
-superscript\index{subscripts and superscripts!on sums} corners of a
-large operator symbol such as $\sum$ or $\prod$. \emph{Note: this
-command is not designed to be applied to anything other than sum-class symbols.} The prime
-example is the case when you want to put a prime on a sum symbol. If
-there are no limits above or below the sum, you could just use
-\cn{nolimits}: here's
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-|\sum\nolimits' E_n| in display mode:
-\begin{equation}
-\sum\nolimits' E_n
-\end{equation}
-If, however, you want not only the prime but also something below or
-above the sum symbol, it's not so easy\mdash indeed, without
-\cn{sideset}, it would be downright difficult. With \cn{sideset}, you
-can write
-\begin{ctab}{ll}
-\begin{minipage}[t]{.6\columnwidth}
-\begin{verbatim}
-\sideset{}{'}
-  \sum_{n<k,\;\text{$n$ odd}} nE_n
-\end{verbatim}
-\end{minipage}
-&$\displaystyle
-\sideset{}{'}\sum_{n<k,\;\text{$n$ odd}} nE_n
-$
-\end{ctab}
-The extra pair of empty braces is explained by the fact that
-\cn{sideset} has the capability of putting an extra symbol or symbols at
-each corner of a large operator; to put an asterisk at each corner of a
-product symbol, you would type
-\begin{ctab}{ll}
-\begin{minipage}[t]{.6\columnwidth}
-\begin{verbatim}
-\sideset{_*^*}{_*^*}\prod
-\end{verbatim}
-\end{minipage}
-&$\displaystyle
-\sideset{_*^*}{_*^*}\prod
-$
-\end{ctab}
-
-\section{Placement of subscripts and limits}\label{subplace}
-
-The default positioning for subscripts depends on the
-base symbol involved. The default for sum-class symbols is
-`displaylimits' positioning: When a sum-class symbol appears
-in a displayed formula, subscript and superscript are placed in `limits'
-position above and below, but in an inline formula, they are placed to
-the side, to avoid unsightly and wasteful spreading of the
-surrounding text lines.
-The default for integral-class symbols is to have sub- and
-superscripts always to the side, even in displayed formulas.
-(See the discussion of the \opt{intlimits} and related options in
-Section~\ref{options}.)
-
-Operator names such as $\sin$ or $\lim$ may have either `displaylimits'
-or `limits' positioning depending on how they were defined. The standard
-operator names are defined according to normal mathematical usage.
-
-The commands \cn{limits} and \cn{nolimits} can be used to override the
-normal behavior of a base symbol:
-\begin{equation*}
-\sum\nolimits_X,\qquad \iint\limits_{A},
-\qquad\varliminf\nolimits_{n\to \infty}
-\end{equation*}
-To define a command whose subscripts follow the
-same `displaylimits' behavior as \cn{sum}, put
-\cn{displaylimits} at the tail end of the definition. When multiple
-instances of \cn{limits}, \cn{nolimits}, or \cn{displaylimits} occur
-consecutively, the last one takes precedence.
-
-\section{Multiple integral signs}
-
-\cn{iint}, \cn{iiint}, and \cn{iiiint} give multiple integral
-signs\index{integrals!multiple} with the spacing between them nicely
-adjusted, in both text and display style. \cn{idotsint} is an extension
-of the same idea that gives two integral signs with dots between them.
-\begin{gather}
-\iint\limits_A f(x,y)\,dx\,dy\qquad\iiint\limits_A
-f(x,y,z)\,dx\,dy\,dz\\
-\iiiint\limits_A
-f(w,x,y,z)\,dw\,dx\,dy\,dz\qquad\idotsint\limits_A f(x_1,\dots,x_k)
-\end{gather}
-
-\chapter{Commutative diagrams}\label{s:commdiag}
-
-Some commutative diagram commands like the ones in \amstex/ are
-available as a separate package, \pkg{amscd}. For complex commutative
-diagrams authors will need to turn to more comprehensive packages like
-\pkg{kuvio} or \xypic/, but for simple diagrams without diagonal
-arrows\index{arrows!in commutative diagrams} the \pkg{amscd} commands
-may be more convenient. Here is one example.
-\begin{equation*}
-\begin{CD}
-S^{{\mathcal{W}}_\Lambda}\otimes T   @>j>>   T\\
-@VVV                                    @VV{\End P}V\\
-(S\otimes T)/I                  @=      (Z\otimes T)/J
-\end{CD}
-\end{equation*}
-\begin{verbatim}
-\begin{CD}
-S^{{\mathcal{W}}_\Lambda}\otimes T   @>j>>   T\\
-@VVV                                    @VV{\End P}V\\
-(S\otimes T)/I                  @=      (Z\otimes T)/J
-\end{CD}
-\end{verbatim}
-In the \env{CD} environment the commands |@>>>|,
-|@<<<|, |@VVV|, and |@AAA| give respectively right, left, down, and up
-arrows. For the horizontal arrows, material between the first and second
-|>| or |<| symbols will be typeset as a superscript, and material
-between the second and third will be typeset as a subscript. Similarly,
-material between the first and second or second and third |A|s or |V|s
-of vertical arrows will be typeset as left or right \qq{sidescripts}.
-The commands |@=| and \verb'@|' give horizontal and vertical double lines.
-A \qq{null arrow} command |@.| can be used instead of a visible arrow
-to fill out an array where needed.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\chapter{Using math fonts}
-
-\section{Introduction}
-
-For more comprehensive information on font use in \latex/, see the
-\latex/ font guide (\fn{fntguide.tex}) or \booktitle{The \latex/
-Companion} \cite{tlc}. The basic set of math font commands\index{math
-fonts}\relax \index{math symbols|see{math fonts}} in \latex/ includes
-\cn{mathbf}, \cn{mathrm}, \cn{mathcal}, \cn{mathsf}, \cn{mathtt},
-\cn{mathit}. Additional math alphabet commands such as
-\cn{mathbb} for blackboard bold, \cn{mathfrak} for Fraktur, and
-\cn{mathscr} for Euler script are available through the packages
-\pkg{amsfonts} and \pkg{euscript} (distributed separately).
-
-\section{Recommended use of math font commands}
-
-If you find yourself employing math font commands frequently in your
-document, you might wish that they had shorter names, such as \ncn{mb}
-instead of \cn{mathbf}. Of course, there is nothing to keep you from
-providing such abbreviations for yourself by suitable \cn{newcommand}
-statements. But for \latex/ to provide shorter names would actually be a
-disservice to authors, as that would obscure a much better alternative:
-defining custom command names derived from the names of the underlying
-mathematical objects, rather than from the names of the fonts used to
-distinguish the objects. For example, if you are using bold to indicate
-vectors, then you will be better served in the long run if you define a
-`vector' command instead of a `math-bold' command:
-\begin{verbatim}
-  \newcommand{\vect}[1]{\mathbf{#1}}
-\end{verbatim}
-you can write |\vect{a} + \vect{b}| to produce $\vect{a} +
-\vect{b}$.
-If you decide several months down the road that you want to use the bold
-font for some other purpose, and mark vectors by a small over-arrow
-instead, then you can put the change into effect merely by changing the
-definition of \ncn{vect}; otherwise you would have to replace all
-occurrences of \cn{mathbf} throughout your document, perhaps even
-needing to inspect each one to see whether it is indeed
-an instance of a vector.
-
-It can also be useful to assign distinct
-command names for different letters of a particular font:
-\begin{verbatim}
-\DeclareSymbolFont{AMSb}{U}{msb}{m}{n}% or use amsfonts package
-\DeclareMathSymbol{\C}{\mathalpha}{AMSb}{"43}
-\DeclareMathSymbol{\R}{\mathalpha}{AMSb}{"52}
-\end{verbatim}
-These statements would define the commands \cn{C} and \cn{R} to produce
-blackboard-bold letters from the `AMSb' math symbols font. If you refer
-often to the\break complex numbers or real numbers in your document, you
-might find this method more convenient than (let's say) defining a
-\ncn{field} command and writing\break |\field{C}|, |\field{R}|. But for
-maximum flexibility and control, define such a \ncn{field} command and
-then define \ncn{C} and \ncn{R} in terms of that
-command:\indexcs{mathbb}
-\begin{verbatim}
-\usepackage{amsfonts}% to get the \mathbb alphabet
-\newcommand{\field}[1]{\mathbb{#1}}
-\newcommand{\C}{\field{C}}
-\newcommand{\R}{\field{R}}
-\end{verbatim}
-
-\section{Bold math symbols}
-
-The \cn{mathbf} command is commonly used to obtain bold Latin letters in
-math, but for most other kinds of math symbols it has no effect, or its
-effects depend unreliably on the set of math fonts that are in use. For
-example, writing
-\begin{verbatim}
-\Delta \mathbf{\Delta}\mathbf{+}\delta \mathbf{\delta}
-\end{verbatim}
-produces $\Delta \mathbf{\Delta}\mathbf{+}\delta
-\mathbf{\delta}$; the \cn{mathbf} has no effect on the plus
-sign or the small delta.
-
-The \pkg{amsmath} package therefore provides two additional commands,
-\cn{boldsymbol} and \cn{pmb}, that can be applied to other kinds of math
-symbols. \cn{boldsymbol} can be used for a math symbol that remains
-unaffected by \cn{mathbf} if (and only if) your current math font set
-includes a bold version of that symbol. \cn{pmb} can be used as a last
-resort for any math symbols that do not have a true bold version
-provided by your set of math fonts; \qq{pmb} stands for \qq{poor man's
-bold} and the command works by typesetting multiple copies of the symbol
-with slight offsets. The quality of the output is inferior, especially
-for symbols that contain any hairline strokes. When the standard default set of
-\latex/ math fonts are in use (Computer Modern), the only symbols that
-are likely to require \cn{pmb} are large operator symbols like \cn{sum},
-extended delimiter symbols, or the extra math symbols provided by
-the \pkg{amssymb} package \cite{amsfonts}.
-
-The following formula shows some of the results that are possible:
-\begin{verbatim}
-A_\infty + \pi A_0
-\sim \mathbf{A}_{\boldsymbol{\infty}} \boldsymbol{+}
-  \boldsymbol{\pi} \mathbf{A}_{\boldsymbol{0}}
-\sim\pmb{A}_{\pmb{\infty}} \pmb{+}\pmb{\pi} \pmb{A}_{\pmb{0}}
-\end{verbatim}
-\begin{equation*}
-A_\infty + \pi A_0
-\sim \mathbf{A}_{\boldsymbol{\infty}} \boldsymbol{+}
-  \boldsymbol{\pi} \mathbf{A}_{\boldsymbol{0}}
-\sim\pmb{A}_{\pmb{\infty}} \pmb{+}\pmb{\pi} \pmb{A}_{\pmb{0}}
-\end{equation*}
-If you want to use only the \cn{boldsymbol} command without loading the
-whole \pkg{amsmath} package, the \pkg{bm} package is recommended (this
-is a standard \latex/ package, not an AMS package; you probably have it
-already if you have a 1997 or newer version of \latex/).
-
-\section{Italic Greek letters}
-
-For italic versions of the capital Greek letters, the following commands
-are provided:
-\begin{ctab}{rlrl}
-\cn{varGamma}& $\varGamma$& \cn{varSigma}& $\varSigma$\\
-\cn{varDelta}& $\varDelta$& \cn{varUpsilon}& $\varUpsilon$\\
-\cn{varTheta}& $\varTheta$& \cn{varPhi}& $\varPhi$\\
-\cn{varLambda}& $\varLambda$& \cn{varPsi}& $\varPsi$\\
-\cn{varXi}& $\varXi$& \cn{varOmega}& $\varOmega$\\
-\cn{varPi}& $\varPi$
-\end{ctab}
-
-\chapter{Error messages and output problems}
-
-\section{General remarks}
-
-This is a supplement to Chapter~8 of the \latex/ manual \cite{lamport} (first
-edition: Chapter~6). For the reader's convenience, the set of error
-messages discussed here overlaps somewhat with the set in that chapter,
-but please be aware that we don't provide exhaustive coverage here.
-The error messages are arranged in alphabetical order, disregarding
-unimportant text such as |! LaTeX Error:| at the beginning, and
-nonalphabetical characters such as \qc{\\}. Where examples are given, we
-show also the help messages that appear on screen when you respond to an
-error message prompt by entering |h|.
-
-There is also a section discussing some output errors, i.e., instances
-where the printed document has something wrong but there was no \latex/
-error during typesetting.
-
-\section{Error messages}
-
-\begin{error}{\begin{split} won't work here.}
-\errexa
-\begin{verbatim}
-! Package amsmath Error: \begin{split} won't work here.
- ...
-
-l.8 \begin{split}
-
-? h
-\Did you forget a preceding \begin{equation}?
-If not, perhaps the `aligned' environment is what you want.
-?
-\end{verbatim}
-\errexpl
-The \env{split} environment does not construct a stand-alone displayed
-equation; it needs to be used within some other environment such as
-\env{equation} or \env{gather}.
-
-\end{error}
-
-\begin{error}{Extra & on this line}
-\errexa
-\begin{verbatim}
-! Package amsmath Error: Extra & on this line.
-
-See the amsmath package documentation for explanation.
-Type  H <return>  for immediate help.
- ...
-
-l.9 \end{alignat}
-
-? h
-\An extra & here is so disastrous that you should probably exit
- and fix things up.
-?
-\end{verbatim}
-\errexpl
-In an \env{alignat} structure the number of alignment points per line
-is dictated by the numeric argument given after |\begin{alignat}|.
-If you use more alignment points in a line it is assumed that you
-accidentally left out a newline command \cn{\\} and the above error is
-issued.
-\end{error}
-
-\begin{error}{Improper argument for math accent}
-\errexa
-\begin{verbatim}
-! Package amsmath Error: Improper argument for math accent:
-(amsmath)                Extra braces must be added to
-(amsmath)                prevent wrong output.
-
-See the amsmath package documentation for explanation.
-Type  H <return>  for immediate help.
- ...
-
-l.415 \tilde k_{\lambda_j} = P_{\tilde \mathcal
-                                               {M}}
-?
-\end{verbatim}
-\errexpl
-Non-simple arguments for any \LaTeX{} command should be enclosed in
-braces. In this example extra braces are needed as follows:
-\begin{verbatim}
-... P_{\tilde{\mathcal{M}}}
-\end{verbatim}
-\end{error}
-
-\begin{error}{Font OMX/cmex/m/n/7=cmex7 not loadable ...}
-\errexa
-\begin{verbatim}
-! Font OMX/cmex/m/n/7=cmex7 not loadable: Metric (TFM) file not found.
-<to be read again>
-                   relax
-l.8 $a
-      b+b^2$
-? h
-I wasn't able to read the size data for this font,
-so I will ignore the font specification.
-[Wizards can fix TFM files using TFtoPL/PLtoTF.]
-You might try inserting a different font spec;
-e.g., type `I\font<same font id>=<substitute font name>'.
-?
-\end{verbatim}
-\errexpl
-Certain extra sizes of some Computer Modern fonts that were formerly
-available mainly through the AMSFonts\index{AMSFonts collection}
-distribution are considered part of standard \latex/ (as of June 1994):
-\fn{cmex7}\ndash \texttt{9}, \fn{cmmib5}\ndash \texttt{9}, and
-\fn{cmbsy5}\ndash \texttt{9}. If these extra sizes are missing on your
-system, you should try first to get them from the source where you
-obtained \latex/. If that fails, you could try getting the fonts from
-CTAN (e.g., in the form of Metafont\index{Metafont source files} source
-files, directory \nfn{/tex-archive/fonts/latex/mf}, or in PostScript
-Type 1 format, directory
-\nfn{/tex-archive/fonts/cm/ps-type1/bakoma}\index{BaKoMa fonts}\relax
-\index{PostScript fonts}).
-
-If the font name begins with \fn{cmex}, there is a special option
-\fn{cmex10} for the \pkg{amsmath} package that provides a temporary
-workaround. I.e., change the \cn{usepackage} to
-\begin{verbatim}
-\usepackage[cmex10]{amsmath}
-\end{verbatim}
-This will force the use of the 10-point size of the \fn{cmex} font in
-all cases. Depending on the contents of your document this may be
-adequate.
-\end{error}
-
-\begin{error}{Math formula deleted: Insufficient extension fonts}
-\errexa
-\begin{verbatim}
-! Math formula deleted: Insufficient extension fonts.
-l.8 $ab+b^2$
-
-?
-\end{verbatim}
-\errexpl
-This usually follows a previous error |Font ... not loadable|; see the
-discussion of that error (above) for solutions.
-\end{error}
-
-\begin{error}{Missing number, treated as zero}
-\errexa
-\begin{verbatim}
-! Missing number, treated as zero.
-<to be read again>
-                   a
-l.100 \end{alignat}
-
-? h
-A number should have been here; I inserted `0'.
-(If you can't figure out why I needed to see a number,
-look up `weird error' in the index to The TeXbook.)
-
-?
-\end{verbatim}
-\errexpl
-There are many possibilities that can lead to this error. However, one
-possibility that is relevant for the \pkg{amsmath} package is that you
-forgot to give the number argument of an \env{alignat} environment, as
-in:
-\begin{verbatim}
-\begin{alignat}
- a&  =b&    c& =d\\
-a'& =b'&   c'& =d'
-\end{alignat}
-\end{verbatim}
-where the first line should read instead
-\begin{verbatim}
-\begin{alignat}{2}
-\end{verbatim}
-
-Another possibility is that you have a left bracket character |[|
-following a linebreak command \cn{\\} in a multiline construction such
-as \env{array}, \env{tabular}, or \env{eqnarray}. This will be
-interpreted by \latex/ as the beginning of an `additional vertical
-space' request \cite[\S C.1.6]{lamport}, even if it occurs on the following
-line and is intended to be part of the contents. For example
-\begin{verbatim}
-\begin{array}
-a+b\\
-[f,g]\\
-m+n
-\end{array}
-\end{verbatim}
-To prevent the error message in such a case, you can
-add braces as discussed in the \latex/ manual \cite[\S C.1.1]{lamport}:
-\begin{verbatim}
-\begin{array}
-a+b\\
-{[f,g]}\\
-m+n
-\end{array}
-\end{verbatim}
-
-\end{error}
-
-\begin{error}{Missing \right. inserted}
-\errexa
-\begin{verbatim}
-! Missing \right. inserted.
-<inserted text>
-                \right .
-l.10 \end{multline}
-
-? h
-I've inserted something that you may have forgotten.
-(See the <inserted text> above.)
-With luck, this will get me unwedged. But if you
-really didn't forget anything, try typing `2' now; then
-my insertion and my current dilemma will both disappear.
-\end{verbatim}
-\errexpl
-This error typically arises when you try to insert a linebreak inside a
-\cn{left}-\cn{right} pair of delimiters in a \env{multline} or
-\env{split} environment:
-\begin{verbatim}
-\begin{multline}
-AAA\left(BBB\\
-  CCC\right)
-\end{multline}
-\end{verbatim}
-There are two possible solutions: (1)~instead of using \cn{left} and
-\cn{right}, use `big' delimiters of fixed size (\cn{bigl} \cn{bigr}
-\cn{biggl} \cn{biggr} \dots; see \secref{bigdel}); or (2)~use null
-delimiters to break up the \cn{left}-\cn{right} pair into parts for each
-line:
-\begin{verbatim}
-AAA\left(BBB\right.\\
-  \left.CCC\right)
-\end{verbatim}
-The latter solution may result in mismatched delimiter sizes;
-ensuring that they match requires using \cn{vphantom} in the line
-that has the smaller delimiter (or possibly \cn{smash} in the line that
-has the larger delimiter). In the argument of \cn{vphantom} put a copy
-of the tallest element that occurs in the other line, e.g.,
-\begin{verbatim}
-xxx \left(\int_t yyy\right.\\
-  \left.\vphantom{\int_t} zzz ... \right)
-\end{verbatim}
-\end{error}
-
-\begin{error}{Paragraph ended before \xxx was complete}
-\errexa
-\begin{verbatim}
-Runaway argument?
-
-! Paragraph ended before \multline was complete.
-<to be read again>
-                   \par
-l.100
-
-? h
-I suspect you've forgotten a `}', causing me to apply this
-control sequence to too much text. How can we recover?
-My plan is to forget the whole thing and hope for the best.
-?
-\end{verbatim}
-\errexpl
-This might be produced by a misspelling in the |\end{multline}| command,
-e.g.,
-\begin{verbatim}
-\begin{multline}
-...
-\end{multiline}
-\end{verbatim}
-or by using abbreviations for certain environments, such as |\bal| and
-|\eal| for |\begin{align}| and |\end{align}|:
-\begin{verbatim}
-\bal
-...
-\eal
-\end{verbatim}
-For technical reasons that kind of abbreviation does not work with
-the more complex displayed equation environments of the \pkg{amsmath} package
-(\env{gather}, \env{align}, \env{split}, etc.; cf.\@ \fn{technote.tex}).
-\end{error}
-
-\begin{error}{Runaway argument?}
-See the discussion for the error message
-\texttt{Paragraph ended before \ncn{xxx} was complete}.
-\end{error}
-
-\begin{error}{Unknown option `xxx' for package `yyy'}
-\errexa
-\begin{verbatim}
-! LaTeX Error: Unknown option `intlim' for package `amsmath'.
-...
-? h
-The option `intlim' was not declared in package `amsmath', perhaps you
-misspelled its name. Try typing  <return>  to proceed.
-?
-\end{verbatim}
-\errexpl
-This means that you misspelled the option name, or the package simply
-does not have an option that you expected it to have. Consult the
-documentation for the given package.
-\end{error}
-
-\begin{error}{Old form `\pmatrix' should be \begin{pmatrix}.}
-\errexa
-\begin{verbatim}
-! Package amsmath Error: Old form `\pmatrix' should be
-                         \begin{pmatrix}.
-
-See the amsmath package documentation for explanation.
-Type  H <return>  for immediate help.
- ...
-
-\pmatrix ->\left (\matrix@check \pmatrix
-                                         \env@matrix
-l.16 \pmatrix
-             {a&b\cr c&d\cr}
-? h
-`\pmatrix{...}' is old Plain-TeX syntax whose use is
-ill-advised in LaTeX.
-?
-\end{verbatim}
-\errexpl
-When the \pkg{amsmath} package is used, the old forms of \cn{pmatrix},
-\cn{matrix}, and \cn{cases} cannot be used any longer because of naming
-conflicts. Their syntax did not conform with standard \LaTeX{} syntax
-in any case.
-\end{error}
-
-\begin{error}{Erroneous nesting of equation structures}
-\errexa
-\begin{verbatim}
-! Package amsmath Error: Erroneous nesting of equation structures;
-(amsmath)                trying to recover with `aligned'.
-
-See the amsmath package documentation for explanation.
-Type  H <return>  for immediate help.
- ...
-
-l.260 \end{alignat*}
-                    \end{equation*}
-\end{verbatim}
-\errexpl
-The structures \env{align}, \env{alignat}, etc., are designed
-for top-level use and for the most part cannot be nested inside some
-other displayed equation structure. The chief exception is that
-\env{align} and most of its variants can be used inside the
-\env{gather} environment.
-\end{error}
-
-\section{Warning messages}
-
-\begin{error}{Foreign command \over [or \atop or \above]}
-\errexa
-\begin{verbatim}
-Package amsmath Warning: Foreign command \over; \frac or \genfrac
-(amsmath)                should be used instead.
-\end{verbatim}
-\errexpl The primitive generalized fraction commands of \tex/\mdash
-\cs{over}, \cs{atop}, \cs{above}\mdash are deprecated when the
-\pkg{amsmath} package is used because their syntax is foreign to \latex/
-and \pkg{amsmath} provides native \latex/ equivalents. See
-\fn{technote.tex} for further information.
-\end{error}
-
-\begin{error}{Cannot use `split' here}
-\errexa
-\begin{verbatim}
-Package amsmath Warning: Cannot use `split' here;
-(amsmath)                trying to recover with `aligned'
-\end{verbatim}
-\errexpl The \env{split} environment is designed to serve as the entire
-body of an equation, or an entire line of an \env{align} or \env{gather}
-environment. There cannot be any printed material before or
-after it within the same enclosing structure:
-\begin{verbatim}
-\begin{equation}
-\left\{ % <-- Not allowed
-\begin{split}
-...
-\end{split}
-\right. % <-- Not allowed
-\end{equation}
-\end{verbatim}
-\end{error}
-
-\section{Wrong output}
-
-\subsection{Section numbers 0.1, 5.1, 8.1 instead of 1, 2, 3}
-\label{numinverse}
-
-This most likely means that you have the arguments for \cn{numberwithin}
-in reverse order:
-\begin{verbatim}
-\numberwithin{section}{equation}
-\end{verbatim}
-That means `print the section number as \textit{equation
-number}.\textit{section number} and reset to 1 every time an equation
-occurs' when what you probably wanted was the inverse
-\begin{verbatim}
-\numberwithin{equation}{section}
-\end{verbatim}
-
-\subsection{The \cn{numberwithin} command had no effect on equation
-numbers}
-
-Are you looking at the first section in your document? Check the section
-numbers elsewhere to see if the problem is the one described in
-\secref{numinverse}.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\chapter{Additional information}
-
-\section{Converting existing documents}
-
-\subsection{Converting from plain \LaTeX{}}
-
-A \LaTeX{} document will typically continue to work the same in most
-respects if \verb'\usepackage{amsmath}' is added in the document
-preamble. By default, however, the \pkg{amsmath} package suppresses page
-breaks inside multiple-line displayed equation structures such as
-\env{eqnarray}, \env{align}, and \env{gather}. To continue allowing page
-breaks inside \env{eqnarray} after switching to \pkg{amsmath}, you will
-need to add the following line in your document preamble:
-\begin{verbatim}
-\allowdisplaybreaks[1]
-\end{verbatim}
-To ensure normal spacing around relation symbols, you might also want to
-change \env{eqnarray} to \env{align}, \env{multline}, or
-\env{equation}\slash\env{split} as appropriate.
-
-Most of the other differences in \pkg{amsmath} usage can be considered
-optional refinements, e.g., using
-\begin{verbatim}
-\DeclareMathOperator{\Hom}{Hom}
-\end{verbatim}
-instead of \verb'\newcommand{\Hom}{\mbox{Hom}}'.
-
-\subsection{Converting from \amslatex/ 1.1}
-See \fn{diffs-m.txt}.
-
-\section{Technical notes}
-The file \fn{technote.tex} contains some remarks on miscellaneous
-technical questions that are less likely to be of general interest.
-
-\section{Getting help}
-
-Questions or comments regarding \pkg{amsmath} and related packages
-should be sent to:
-\begin{infoaddress}
-American Mathematical Society\\
-Technical Support\\
-Electronic Products and Services\\
-P. O. Box 6248\\
-Providence, RI 02940\\[3pt]
-Phone: 800-321-4AMS (321-4267) \quad or \quad 401-455-4080\\
-Internet: \mail{tech-support@ams.org}
-\end{infoaddress}
-If you are reporting a problem you should include
-the following information to make proper investigation possible:
-\begin{enumerate}
-\item The source file where the problem occurred, preferably reduced
-  to minimum size by removing any material that can be removed without
-  affecting the observed problem.
-\item A \latex/ log file showing the error message (if applicable) and
-  the version numbers of the document class and option files being used.
-\end{enumerate}
-
-\section{Of possible interest}\label{a:possible-interest}
-Information about obtaining AMSFonts or other \tex/-related
-software from the AMS Internet archive \fn{e-math.ams.org}
-can be obtained by sending a request through electronic mail to:
-\mail{webmaster@ams.org}.
-
-Information about obtaining the \pkg{amsmath} distribution on diskette
-from the AMS is available from:
-\begin{infoaddress}
-American Mathematical Society\\
-Customer Services\\
-P. O. Box 6248\\
-Providence, RI 02940\\[3pt]
-Phone: 800-321-4AMS (321-4267) \quad or \quad 401-455-4000\\
-Internet: \mail{cust-serv@ams.org}
-\end{infoaddress}
-
-The \tex/ Users Group\index{TeX Users@\tex/ Users Group} is a nonprofit
-organization that publishes a journal
-(\journalname{TUGboat}\index{TUGboat@\journalname{TUGboat}}), holds
-meetings, and serves as a clearing-house of general information about
-\tex/ and \tex/-related software.
-\begin{infoaddress}
-\tex/ Users Group\\
-PO Box 2311\\
-Portland, OR 97208-2311\\
-USA\\[3pt]
-Phone: +1-503-223-9994\\
-Email: \mail{office@tug.org}
-\end{infoaddress}
-Membership in the \tex/ Users Group is a good way to support continued
-development of free \tex/-related software. There are also many local
-\tex/ user groups in other countries; information about contacting a
-local user group can be gotten from the \tex/ Users Group.
-
-There is a Usenet newsgroup called \fn{comp.text.tex} that is a fairly
-good source of information about \latex/ and \tex/ in general. If you
-don't know about reading newsgroups, check with your local system
-administrator to see if newsgroup service is available at your site.
-
-\begin{thebibliography}{9}
-\addcontentsline{toc}{chapter}{Bibliography}
-
-\bibitem{amsfonts}\booktitle{AMSFonts version \textup{2.2}\mdash user's guide},
-Amer. Math. Soc., Providence, RI, 1994; distributed
-with the AMSFonts package.
-
-\bibitem{instr-l}\booktitle{Instructions for preparation of
-papers and monographs\mdash \amslatex/},
-Amer. Math. Soc., Providence, RI, 1996, 1999.
-
-\bibitem{amsthdoc}\booktitle{Using the \pkg{amsthm} Package},
-Amer. Math. Soc., Providence, RI, 1999.
-
-\bibitem{tlc} Michel Goossens, Frank Mittelbach, and Alexander Samarin,
-\booktitle{The \latex/ companion}, Addison-Wesley, Reading, MA, 1994.
-  [\emph{Note: The 1994 edition is not a reliable guide for the
-    \pkg{amsmath} package unless you refer to the errata for Chapter
-    8\mdash file \fn{compan.err}, distributed with \LaTeX{}.}]
-
-% Deal with a line breaking problem
-\begin{raggedright}
-\bibitem{mil} G. Gr\"{a}tzer,
-\emph{Math into \LaTeX{}: An Introduction to \LaTeX{} and AMS-\LaTeX{}}
-  \url{http://www.ams.org/cgi-bin/bookstore/bookpromo?fn=91&arg1=bookvideo&itmc=MLTEX},
-Birkh\"{a}user, Boston, 1995.\par
-\end{raggedright}
-
-\bibitem{kn} Donald E. Knuth, \booktitle{The \tex/book},
-Addison-Wesley, Reading, MA, 1984.
-
-\bibitem{lamport} Leslie Lamport, \booktitle{\latex/: A document preparation
-system}, 2nd revised ed., Addison-Wesley, Reading, MA, 1994.
-
-\bibitem{msf} Frank Mittelbach and Rainer Sch\"opf,
-\textit{The new font family selection\mdash user
-interface to standard \latex/}, \journalname{TUGboat} \textbf{11},
-no.~2 (June 1990), pp.~297\ndash 305.
-
-\bibitem{jt} Michael Spivak, \booktitle{The joy of \tex/}, 2nd revised ed.,
-Amer. Math. Soc., Providence, RI, 1990.
-
-\end{thebibliography}
-
-\begin{theindex}
-
-  \item {\normalfont  \ttfamily  \bslchar \qcbang  }, 11
-  \item \verb*+\,+, 11
-  \item \verb*+\:+, 11
-  \item \verb*+\;+, 11
-  \item \verb*+\\+, 3, 5, 6, 8, 9, 24, 26
-  \item \verb*+\\*+, 9
-  \item \verb*+\|+, 16
-
-  \indexspace
-
-  \item \verb*+\above+, 14, 29
-  \item \verb*+\abovewithdelims+, 14
-  \item \verb*+\accentedsymbol+, 2
-  \item \texttt{accents} package, 12
-  \item \verb*+\addtocounter+, 10
-  \item \verb*+\addtolength+, 5
-  \item \texttt{align} environment, 3, 5--7, 28--30
-  \item \texttt{alignat} environment, 7, 24, 26, 29
-  \item \texttt{aligned} environment, 7, 9
-  \item \texttt{alignedat} environment, 7, 9
-  \item \verb*+\allowdisplaybreaks+, 8, 9
-  \item \texttt{amsart} class, 1
-  \item \texttt{amsbook} class, 1
-  \item \texttt{amsbsy} package, 1, 2
-  \item \texttt{amscd} package, 1, 2, 20
-  \item \texttt{amsfonts} package, 21
-  \item AMSFonts collection, 25
-  \item \texttt{amsmath} package, i, 1--3, 5, 8--18, 22, 23, 25, 26,
-		28--32
-  \item \texttt{amsopn} package, 1, 2
-  \item \texttt{amssymb} package, 22
-  \item \texttt{amstext} package, 1, 2
-  \item \texttt{amsthm} package, 1, 32
-  \item \texttt{amsxtra} package, 1, 2, 12
-  \item \verb*+\arccos+, 18
-  \item \verb*+\arcsin+, 18
-  \item \verb*+\arctan+, 18
-  \item \verb*+\arg+, 18
-  \item \texttt{array} environment, 8, 10, 26
-  \item arrows
-    \subitem extensible, 13
-    \subitem in commutative diagrams, 20
-  \item \verb*+\atop+, 14, 29
-  \item \verb*+\atopwithdelims+, 14
-
-  \indexspace
-
-  \item BaKoMa fonts, 25
-  \item \cn{big}, \cn{Big}, \cn{bigg}, \dots\ delimiters, 16
-  \item \verb*+\biggl+, 27
-  \item \verb*+\biggr+, 27
-  \item \verb*+\bigl+, 27
-  \item \verb*+\bigr+, 27
-  \item \verb*+\binom+, 14
-  \item binomials, 14
-  \item \texttt{bm} package, 2, 23
-  \item \texttt{Bmatrix} environment, 10
-  \item \texttt{bmatrix} environment, 10
-  \item \verb*+\bmod+, 18
-  \item \verb*+\boldsymbol+, 22, 23
-  \item \verb*+\boxed+, 13
-
-  \indexspace
-
-  \item \verb*+\C+, 22
-  \item \texttt{cases} environment, 8
-  \item \verb*+\cases+, 28
-  \item \texttt{CD} environment, 2, 21
-  \item \verb*+\cdots+, 12
-  \item \texttt{centertags} option, 2
-  \item \verb*+\cfrac+, 15
-  \item \texttt{cmbsy5}, 25
-  \item \texttt{cmex}, 25
-  \item \texttt{cmex10}, 25
-  \item \texttt{cmex7}, 25
-  \item \texttt{cmmib5}, 25
-  \item \texttt{comp.text.tex}, 31
-  \item \texttt{compan.err}, 32
-  \item continued fractions, 15
-  \item \verb*+\cos+, 18
-  \item \verb*+\cosh+, 18
-  \item \verb*+\cot+, 18
-  \item \verb*+\coth+, 18
-  \item \verb*+\csc+, 18
-
-  \indexspace
-
-  \item \verb*+\dbinom+, 14
-  \item \verb*+\ddddot+, 12
-  \item \verb*+\dddot+, 12
-  \item \verb*+\ddot+, 12
-  \item \verb*+\DeclareMathOperator+, 2, 17, 18
-  \item \verb*+\deg+, 18
-  \item \verb*+\det+, 18
-  \item \verb*+\dfrac+, 14
-  \item \texttt{diffs-m.txt}, 30
-  \item \verb*+\dim+, 18
-  \item \verb*+\displaybreak+, 8, 9
-  \item displayed   equations, 3
-  \item displayed equations
-    \subitem centering, 3
-  \item \verb*+\displaylimits+, 20
-  \item \texttt{displaymath} environment, 3
-  \item \verb*+\displaystyle+, 14
-  \item \verb*+\documentclass+, 2
-  \item \verb*+\dot+, 12
-  \item dots, \see{ellipsis dots}{11}
-  \item \verb*+\dotsb+, 12
-  \item \verb*+\dotsc+, 12
-  \item \verb*+\dotsi+, 12
-  \item \verb*+\dotsm+, 12
-  \item \verb*+\dotso+, 12
-
-  \indexspace
-
-  \item \texttt{e-math.ams.org}, 31
-  \item ellipsis dots
-    \subitem in matrices, 11
-  \item \texttt{eqnarray} environment, 1, 3, 26, 30
-  \item \verb*+\eqref+, 10
-  \item \texttt{equation} environment, 1, 3, 5, 7, 24, 30
-  \item equation numbers
-    \subitem cross-references, 10
-    \subitem hierarchy, 9
-    \subitem left or right placement, 3
-    \subitem overriding, 3
-    \subitem subordinate numbering, 10
-    \subitem vertical placement, 2
-  \item \texttt{equation*} environment, 3
-  \item equations, \see{displayed equations}{3}
-  \item \texttt{euscript} package, 21
-  \item \verb*+\exp+, 18
-
-  \indexspace
-
-  \item \verb*+\fbox+, 13
-  \item \texttt{fleqn} option, 3, 5
-  \item \texttt{fntguide.tex}, 21
-  \item \verb*+\frac+, 14, 15
-  \item fractions, 14
-  \item \verb*+\fracwithdelims+, 2
-  \item function names, \see{operator names}{17}
-
-  \indexspace
-
-  \item \texttt{gather} environment, 5--7, 24, 28--30
-  \item \texttt{gathered} environment, 7, 9
-  \item \verb*+\gcd+, 18
-  \item \verb*+\genfrac+, 14
-
-  \indexspace
-
-  \item \verb*+\hat+, 12
-  \item \verb*+\hdotsfor+, 11
-  \item \verb*+\hom+, 18
-  \item horizontal space
-    \subitem around operator names, 17
-    \subitem in math mode, 11
-
-  \indexspace
-
-  \item \verb*+\idotsint+, 20
-  \item \verb*+\iiiint+, 20
-  \item \verb*+\iiint+, 20
-  \item \verb*+\iint+, 20
-  \item \verb*+\inf+, 18
-  \item \verb*+\injlim+, 18
-  \item integrals
-    \subitem multiple, 20
-    \subitem placement of limits, 2
-  \item \verb*+\intertext+, 9
-  \item \texttt{intlimits} option, 2, 20
-
-  \indexspace
-
-  \item \verb*+\ker+, 18
-  \item \texttt{kuvio} package, 20
-
-  \indexspace
-
-  \item \verb*+\label+, 6, 10
-  \item \verb*+\langle+, 16
-  \item \verb*+\ldots+, 12
-  \item \verb*+\left+, 15, 16, 27
-  \item \verb*+\leftroot+, 13
-  \item \texttt{leqno} option, 3, 5
-  \item \verb*+\lg+, 18
-  \item \verb*+\lim+, 1, 2, 17, 18
-  \item \verb*+\liminf+, 18
-  \item limits, \see{subscripts and superscripts}{2}
-  \item \verb*+\limits+, 20
-  \item \verb*+\limsup+, 18
-  \item \verb*+\ln+, 18
-  \item \verb*+\log+, 17, 18
-  \item \verb*+\lVert+, 16
-  \item \verb*+\lvert+, 16
-
-  \indexspace
-
-  \item math fonts, 21
-  \item math symbols, \see{math fonts}{21}
-  \item \verb*+\mathbb+, 21, 22
-  \item \verb*+\mathbf+, 21, 22
-  \item \verb*+\mathcal+, 21
-  \item \verb*+\mathfrak+, 21
-  \item \verb*+\mathit+, 21
-  \item \verb*+\mathrm+, 21
-  \item \verb*+\mathscr+, 21
-  \item \verb*+\mathsf+, 21
-  \item \verb*+\mathtt+, 21
-  \item matrices, 10
-    \subitem ellipsis dots, 11
-  \item \texttt{matrix} environment, 10
-  \item \verb*+\matrix+, 28
-  \item \verb*+\max+, 18
-  \item \verb*+\mbox+, 18
-  \item \verb*+\medspace+, 11
-  \item Metafont source files, 25
-  \item \verb*+\min+, 18
-  \item \verb*+\mod+, 18
-  \item \verb*+\mspace+, 11
-  \item \texttt{multline} environment, 3, 5, 27, 30
-  \item \verb*+\multlinegap+, 5
-
-  \indexspace
-
-  \item \texttt{namelimits} option, 2
-  \item \verb*+\negmedspace+, 11
-  \item \verb*+\negthickspace+, 11
-  \item \verb*+\negthinspace+, 11
-  \item \verb*+\newcommand+, 21
-  \item \verb*+\nobreakdash+, 12
-  \item \texttt{nointlimits} option, 2
-  \item \verb*+\nolimits+, 19, 20
-  \item \texttt{nonamelimits} option, 2
-  \item \texttt{nosumlimits} option, 2
-  \item \verb*+\notag+, 3, 5
-  \item \verb*+\numberwithin+, 9, 29, 30
-
-  \indexspace
-
-  \item operator names, 17
-  \item \verb*+\operatorname+, 18
-  \item \verb*+\operatorname*+, 18
-  \item \verb*+\over+, 14, 29
-  \item \verb*+\overleftarrow+, 13
-  \item \verb*+\overleftrightarrow+, 13
-  \item \verb*+\overrightarrow+, 13
-  \item \verb*+\overset+, 13
-  \item \verb*+\overwithdelims+, 14
-
-  \indexspace
-
-  \item page breaks, 8
-  \item \verb*+\pagebreak+, 8
-  \item \texttt{pmatrix} environment, 10
-  \item \verb*+\pmatrix+, 28
-  \item \verb*+\pmb+, 22
-  \item \verb*+\pmod+, 18
-  \item \verb*+\pod+, 18
-  \item PostScript fonts, 25
-  \item \verb*+\Pr+, 18
-  \item \verb*+\projlim+, 18
-
-  \indexspace
-
-  \item \verb*+\qquad+, 11
-  \item \verb*+\quad+, 11
-
-  \indexspace
-
-  \item \verb*+\R+, 22
-  \item \verb*+\raisetag+, 8
-  \item \verb*+\rangle+, 16
-  \item \verb*+\ref+, 10
-  \item \texttt{reqno} option, 3, 5
-  \item \verb*+\right+, 15, 16, 27
-  \item \verb*+\rVert+, 16
-  \item \verb*+\rvert+, 16
-
-  \indexspace
-
-  \item \verb*+\scriptscriptstyle+, 14
-  \item \verb*+\scriptstyle+, 14
-  \item \verb*+\sec+, 18
-  \item \verb*+\setcounter+, 9, 10
-  \item \verb*+\setlength+, 5
-  \item \verb*+\shoveleft+, 5
-  \item \verb*+\shoveright+, 5
-  \item \verb*+\sideset+, 13, 19
-  \item \verb*+\sin+, 1, 2, 17, 18
-  \item \verb*+\sinh+, 18
-  \item \texttt{smallmatrix} environment, 11
-  \item \verb*+\smash+, 15, 27
-  \item \verb*+\sphat+, 12
-  \item \texttt{split} environment, 3, 5, 6, 9, 24, 27--30
-  \item \verb*+\sptilde+, 12
-  \item \verb*+\stackrel+, 13
-  \item \texttt{subarray} environment, 19
-  \item \texttt{subeqn.tex}, 3
-  \item \texttt{subequations} environment, 10
-  \item subscripts and superscripts, 13
-    \subitem multi-line, 19
-    \subitem on sums, 19
-    \subitem placement, 2
-  \item \verb*+\substack+, 19
-  \item \verb*+\sum+, 20, 22
-  \item \texttt{sumlimits} option, 2
-  \item \verb*+\sup+, 18
-  \item superscripts, \see{subscripts and superscripts}{19}
-
-  \indexspace
-
-  \item \texttt{tabular} environment, 26
-  \item \verb*+\tag+, 3
-  \item \verb*+\tag*+, 3
-  \item \verb*+\tan+, 18
-  \item \verb*+\tanh+, 18
-  \item \verb*+\tbinom+, 14
-  \item \texttt{tbtags} option, 2
-  \item \texttt{technote.tex}, 14, 28--30
-  \item \texttt{testmath.tex}, 3
-  \item \tex/ Users Group, 31
-  \item \verb*+\text+, 2, 7--9, 18
-  \item text fragments inside math, 9, 18
-  \item \verb*+\textstyle+, 14
-  \item \verb*+\tfrac+, 14
-  \item \verb*+\theequation+, 9, 10
-  \item \verb*+\thickspace+, 11
-  \item \verb*+\thinspace+, 11
-  \item \journalname{TUGboat}, 31
-
-  \indexspace
-
-  \item \verb*+\underleftarrow+, 13
-  \item \verb*+\underleftrightarrow+, 13
-  \item \verb*+\underrightarrow+, 13
-  \item \verb*+\underset+, 13
-  \item \verb*+\uproot+, 13
-  \item \verb*+\usepackage+, 2, 25
-
-  \indexspace
-
-  \item \verb*+\value+, 10
-  \item \verb*+\varDelta+, 23
-  \item \verb*+\varGamma+, 23
-  \item \verb*+\varinjlim+, 18
-  \item \verb*+\varLambda+, 23
-  \item \verb*+\varliminf+, 18
-  \item \verb*+\varlimsup+, 18
-  \item \verb*+\varOmega+, 23
-  \item \verb*+\varPhi+, 23
-  \item \verb*+\varPi+, 23
-  \item \verb*+\varprojlim+, 18
-  \item \verb*+\varPsi+, 23
-  \item \verb*+\varSigma+, 23
-  \item \verb*+\varTheta+, 23
-  \item \verb*+\varUpsilon+, 23
-  \item \verb*+\varXi+, 23
-  \item \texttt{Vmatrix} environment, 10
-  \item \texttt{vmatrix} environment, 10
-  \item \verb*+\vphantom+, 27
-
-  \indexspace
-
-  \item \verb*+\xleftarrow+, 13
-  \item \verb*+\xrightarrow+, 13
-
-\end{theindex}
-
-\end{document}
diff --git a/Master/texmf-dist/doc/latex/amslatex/amsproc.template b/Master/texmf-dist/doc/latex/amslatex/amsproc.template
deleted file mode 100644
index 2409fc62991..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/amsproc.template
+++ /dev/null
@@ -1,61 +0,0 @@
-%-----------------------------------------------------------------------
-% Beginning of amsproc.template
-%-----------------------------------------------------------------------
-%
-%     AMS-LaTeX v.2 template for use with amsproc
-%
-%     Remove any commented or uncommented macros you do not use.
-
-\documentclass{amsproc}
-
-\newtheorem{theorem}{Theorem}[section]
-\newtheorem{lemma}[theorem]{Lemma}
-
-\theoremstyle{definition}
-\newtheorem{definition}[theorem]{Definition}
-\newtheorem{example}[theorem]{Example}
-\newtheorem{xca}[theorem]{Exercise}
-
-\theoremstyle{remark}
-\newtheorem{remark}[theorem]{Remark}
-
-\numberwithin{equation}{section}
-
-\begin{document}
-
-\title{}
-
-%    Remove any unused author tags.
-
-%    author one information
-\author{}
-\address{}
-\curraddr{}
-\email{}
-\thanks{}
-
-%    author two information
-\author{}
-\address{}
-\curraddr{}
-\email{}
-\thanks{}
-
-\subjclass[2000]{Primary }
-
-\keywords{}
-
-\date{}
-
-\dedicatory{}
-
-\begin{abstract}
-\end{abstract}
-
-\maketitle
-
-\end{document}
-
-%-----------------------------------------------------------------------
-% End of amsproc.template
-%-----------------------------------------------------------------------
diff --git a/Master/texmf-dist/doc/latex/amslatex/amsrdoc.pdf b/Master/texmf-dist/doc/latex/amslatex/amsrdoc.pdf
deleted file mode 100644
index ab9fe5ab91d..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/amsrdoc.pdf
+++ /dev/null
diff --git a/Master/texmf-dist/doc/latex/amslatex/amsrefs.faq b/Master/texmf-dist/doc/latex/amslatex/amsrefs.faq
deleted file mode 100644
index 3484e5d13d8..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/amsrefs.faq
+++ /dev/null
@@ -1,15 +0,0 @@
-amsrefs.faq  [2004/06/30] American Mathematical Society
-
-Frequently asked questions about the amsrefs package and its companion
-packages.
-
-Suggestions? Please send mail to tech-support@ams.org.
-
-------------------------------------------------------------------------
-(1) Question: Where should I look for documentation?
-
-Answer: User documentation is found in the file amsrdoc.pdf (or
-amsrdoc.dvi).
-
-Some example files (cite-xa.tex cite-xb.tex cite-xh.tex cite-xs.tex
-gktest.ltb) are also provided.
diff --git a/Master/texmf-dist/doc/latex/amslatex/amsrefs.pdf b/Master/texmf-dist/doc/latex/amslatex/amsrefs.pdf
deleted file mode 100644
index 79061f69b83..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/amsrefs.pdf
+++ /dev/null
diff --git a/Master/texmf-dist/doc/latex/amslatex/amsthdoc.pdf b/Master/texmf-dist/doc/latex/amslatex/amsthdoc.pdf
deleted file mode 100644
index 5a0a59efa2f..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/amsthdoc.pdf
+++ /dev/null
diff --git a/Master/texmf-dist/doc/latex/amslatex/amsthdoc.tex b/Master/texmf-dist/doc/latex/amslatex/amsthdoc.tex
deleted file mode 100644
index 21e824f5ba0..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/amsthdoc.tex
+++ /dev/null
@@ -1,374 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsthdoc.tex",
-%%%   version   = "2.20",
-%%%   date      = "2004/08/03",
-%%%   time      = "15:02:46 EDT",
-%%%   checksum  = "15807 374 1763 14655",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1999, 2004 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Publications Technical Group,
-%%%                201 Charles Street,
-%%%                Providence, RI 02904,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   supported = "yes",
-%%%   keywords  = "latex, theorem, proof, amsthm",
-%%%   abstract  = "This file is the User's Guide for the amsthm
-%%%                package.",
-%%%   docstring = "The checksum field above contains a CRC-16
-%%%                checksum as the first value, followed by the
-%%%                equivalent of the standard UNIX wc (word
-%%%                count) utility output of lines, words, and
-%%%                characters.  This is produced by Robert
-%%%                Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\documentclass[twoside]{article}
-\pagestyle{myheadings}
-
-% Use the same version numbers as for the amslatex instructions.
-\def\instrversion{2.20}
-\def\instrdate{August 2004}
-
-\title{Using the \pkg{amsthm} Package}
-\author{Version \instrversion, \instrdate\\American Mathematical Society}
-\date{}
-
-\providecommand{\qq}[1]{\textquotedblleft#1\textquotedblright}
-\providecommand{\mdash}{\textemdash\penalty\hyphenpenalty}
-
-% Embedded \index commands are a legacy from the time when this
-% documentation was part of amsldoc. Since they don't hurt anything,
-% let's leave them in. Maybe they will become useful again in the
-% future. [mjd,2000/06/06]
-
-\chardef\bslchar=`\\ % p. 424, TeXbook
-\newcommand{\ntt}{%
-  \fontfamily\ttdefault \fontseries\mddefault \fontshape\updefault
-  \selectfont
-}
-\DeclareRobustCommand{\cn}[1]{{\ntt\bslchar#1}}
-\DeclareRobustCommand{\cls}[1]{{\ntt#1}}
-\DeclareRobustCommand{\pkg}[1]{{\ntt#1}}
-\DeclareRobustCommand{\opt}[1]{{\ntt#1}}
-\DeclareRobustCommand{\env}[1]{{\ntt#1}}
-\DeclareRobustCommand{\fn}[1]{{\ntt#1}}
-
-\providecommand{\qedsymbol}{\leavevmode
-  \hbox to.77778em{%
-  \hfil\vrule
-  \vbox to.675em{\hrule width.6em\vfil\hrule}%
-  \vrule\hfil}}
-
-%%  Provide a meta-command facility; provide an alternate escape
-%%  character so it can be used within the verbatim environment.
-
-\catcode`\|=0
-\begingroup \catcode`\>=13 % in LaTeX2e verbatim env makes > active
-\gdef\?#1>{{\normalfont$\langle$\textup{#1}$\rangle$}}
-\gdef\0{\relax}
-\endgroup
-\def\<#1>{{\normalfont$\langle$\textup{#1}$\rangle$}}
-\def\ntnote#1{{\normalfont$^{#1}$}}
-
-\hfuzz4pt \vbadness9999 \hbadness5000
-\def\latex/{{\protect\LaTeX}}
-
-\setlength{\textwidth}{210mm}\addtolength{\textwidth}{-2in}
-\setlength{\oddsidemargin}{39pt}
-\setlength{\evensidemargin}{39pt}
-\addtolength{\textwidth}{-2\oddsidemargin}
-
-\begin{document}
-\maketitle
-\markboth{USING THE \pkg{amsthm} PACKAGE}{USING THE \pkg{amsthm} PACKAGE}
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\section{Introduction}
-
-\begin{sloppypar}
-The \pkg{amsthm} package provides an enhanced version of \latex/'s
-\cn{newtheorem} command for defining theorem-like environments. The
-enhanced \cn{newtheorem} recognizes a
-\cn{theoremstyle} specification (as in Mittelbach's \pkg{theorem}
-package) and has a \verb'*' form for defining unnumbered environments. The
-\pkg{amsthm} package also defines a \env{proof} environment that
-automatically adds a QED symbol at the end. AMS document classes
-incorporate the \pkg{amsthm} package, so everything described here
-applies to them as well.
-\end{sloppypar}
-
-If the \pkg{amsthm} package is used with a non-AMS document class and
-with the \pkg{amsmath} package, \pkg{amsthm} must be loaded
-\emph{after} \pkg{amsmath}, not before.
-
-Examples are given in the file \fn{thmtest.tex}.  For best understanding,
-examine the output side-by-side with the input.
-
-
-\section{The \cn{newtheorem} command}
-
-In mathematical research articles and books, theorems\index{theorems}
-and proofs\index{proofs} are among the most common elements, but authors
-also use many others that fall in the same general class: lemmas,
-propositions, axioms, corollaries, conjectures, definitions, remarks,
-cases, steps, and so forth. It is natural to handle these elements as
-\latex/ environments, but document classes do not
-provide predefined environments for theorem-like elements because
-(a)~that would make it difficult for authors to exercise the necessary
-control over the automatic numbering, and (b)~the variety of such
-elements is so wide that it's not possible for a document class to
-provide every one that will ever be needed. Instead there is a command
-\cn{newtheorem}, similar in effect to \cn{newenvironment}, that makes it
-easy for authors to set up the elements required for a particular
-document.
-
-The \cn{newtheorem} command has two mandatory arguments; the first one
-is the environment name that the author would like to use for this
-element; the second one is the heading text. For example,
-\begin{verbatim}
-\newtheorem{lem}{Lemma}
-\end{verbatim}
-means that instances in the document of
-\begin{verbatim}
-\begin{lem} Text text ... \end{lem}
-\end{verbatim}
-will produce
-\[\makebox[.8\columnwidth]{%
-  \textbf{Lemma 1.} \textit{Text text \dots}\hfill}\]
-where the heading consists of the specified text \qq{Lemma} and an
-automatically generated number and punctuation.
-
-If \cn{newtheorem*} is used instead of \cn{newtheorem} in this
-example, numbers will not be generated automatically for
-any of the lemmas in the document. This form of the command can be
-useful if you have only one lemma and don't want it to be
-numbered; more often, though, it is used to produce a special named
-variant of one of the common theorem types. For example, if you have a
-lemma that should be labeled \qq{Klein's Lemma}, then the statement
-\begin{verbatim}
-\newtheorem*{KL}{Klein's Lemma}
-\end{verbatim}
-would allow you to write
-\begin{verbatim}
-\begin{KL} Text text ... \end{KL}
-\end{verbatim}
-and get the desired output.
-
-Sometimes additional information is desired in the heading of a
-theorem or lemma, often because it is cited from another source.
-An optional argument is used to provide this information:
-\begin{verbatim}
-\begin{lem}[Alinhac-Lerner \cite{a-l}]
-\end{verbatim}
-yielding the output
-\[\makebox[.8\columnwidth]{%
-  \textbf{Lemma 2.} (Alinhac-Lerner [1]). \textit{Text text \dots}\hfill}\]
-
-
-\section{Numbering modifications}
-
-In addition to the two mandatory arguments, \cn{newtheorem} has two
-mutually exclusive optional arguments. These affect the
-sequencing\index{theorems!numbering} and hierarchy of the numbering.
-
-By default each kind of theorem-like environment is numbered
-independently. Thus if you have three lemmas and two theorems
-interspersed, they will be numbered something like this: Lemma 1, Lemma
-2, Theorem 1, Lemma 3, Theorem 2. If you want lemmas and theorems to
-share the same numbering sequence\mdash Lemma 1, Lemma 2, Theorem 3, Lemma
-4, Theorem 5\mdash then you should indicate the desired relationship as
-follows:
-\begin{verbatim}
-\newtheorem{thm}{Theorem}
-\newtheorem{lem}[thm]{Lemma}
-\end{verbatim}
-The optional argument \verb'[thm]' in the second statement means that
-the \texttt{lem} environment should share the \texttt{thm} numbering
-sequence instead of having its own independent sequence.
-
-To have a theorem environment numbered subordinately within a
-sectional unit\mdash e.g., to get propositions numbered Proposition 2.1,
-Proposition 2.2, and so on in Section~2\mdash put the name of the parent
-unit in square brackets in final position:
-\begin{verbatim}
-\newtheorem{prop}{Proposition}[section]
-\end{verbatim}
-With the optional argument \verb'[section]', the \verb'prop' counter
-will be reset to 0 whenever the parent counter \verb'section' is
-incremented, and the proposition label will have the section number
-prepended.
-
-Note that theorem numbering is not accomplished by the same method
-as the \cn{numberwithin} facility of \pkg{amsmath}, so an attempt to
-use that to relate theorem numbers to equation numbers will not work
-in the expected way.  A method for accomplishing that, as well as
-some other variations, is given in the AMS Author FAQ \cite{AF},
-in the section on \qq{Theorems in AMS-\LaTeX}.
-
-
-\section{Changing styles for theorem-like environments}
-
-\subsection{The \cn{theoremstyle} command}
-
-The \pkg{amsthm} package supports the notion of a current theorem style,
-which determines what will be produced by a given \cn{newtheorem}
-command. The three theorem styles provided\mdash
-\verb'plain',\index{plain theo@\texttt{plain} theorem style}\relax
-\index{definition theo@\texttt{definition} theorem style}\relax
-\index{remark theo@\texttt{remark} theorem style} \verb'definition',
-and \verb'remark'\mdash specify different degrees of
-visual emphasis corresponding to their relative importance. The
-details of this typographical treatment may vary depending on the
-document class, but typically the \verb'plain' style produces italic
-body text, while the other two styles produce roman body text.
-
-If no \cn{theoremstyle} command is given, the style used will be
-\texttt{plain}. To specify different styles,
-divide your \cn{new\-theorem} commands into groups and preface each
-group with the appropriate \cn{theo\-rem\-style}. Some examples:
-\begin{verbatim}
-\theoremstyle{plain}% default
-\newtheorem{thm}{Theorem}[section]
-\newtheorem{lem}[thm]{Lemma}
-\newtheorem{prop}[thm]{Proposition}
-\newtheorem*{cor}{Corollary}
-\newtheorem*{KL}{Klein's Lemma}
-
-\theoremstyle{definition}
-\newtheorem{defn}{Definition}[section]
-\newtheorem{conj}{Conjecture}[section]
-\newtheorem{exmp}{Example}[section]
-
-\theoremstyle{remark}
-\newtheorem*{rem}{Remark}
-\newtheorem*{note}{Note}
-\newtheorem{case}{Case}
-\end{verbatim}
-
-The following list summarizes the types of structures which are
-normally associated with each theorem style.
-
-\smallskip
-\begin{tabular}{ll}
- \relax\env{plain} & Theorem, Lemma, Corollary, Proposition, Conjecture, \\
-                   & Criterion, Algorithm \\
- \relax\env{definition} \quad & Definition, Condition, Problem, Example \\
- \relax\env{remark} & Remark, Note, Notation, Claim, Summary, \\
-                    & Acknowledgment, Case, Conclusion
-\end{tabular}
-
-\subsection{Number swapping}
-
-A common style variation is to have the theorem number at the beginning
-of the heading instead of at the end, for example \qq{1.4 Theorem}
-instead of \qq{Theorem 1.4}.  As this variation is usually applied
-to all \cn{theoremstyle}s, it is done by
-placing a \cn{swapnumbers} command at the beginning of the list of
-\cn{newtheorem} statements that should be affected. For example:
-\begin{verbatim}
-\swapnumbers
-\theoremstyle{plain}
-\newtheorem{thm}{Theorem}
-\theoremstyle{remark}
-\newtheorem{rem}{Remark}
-\end{verbatim}
-
-In AMS document classes, when numbers are swapped, the style of the
-numbers matches that of section headings; this may not be the same
-style as the rest of the theorem heading.
-
-\subsection{New theorem styles}
-
-The \pkg{amsthm} package provides a \cn{newtheoremstyle} command
-to aid in the creation of custom styles, should the three predefined
-styles prove insufficient.  The following example illustrates the use
-of the \cn{newtheoremstyle} command.
-\begin{verbatim}
-\newtheoremstyle{note}%  |?name>
-  {3pt}%      |?Space above>
-  {3pt}%      |?Space below>
-  {}%         |?Body font>
-  {}%         |?Indent amount>|ntnote1
-  {\itshape}% |?Theorem head font>
-  {:}%        |?Punctuation after theorem head>
-  {.5em}%     |?Space after theorem head>|ntnote2
-  {}%         |?Theorem head spec (can be left empty, meaning `normal')>
-\end{verbatim}
-\noindent
-\ntnote1 Indent amount: empty = no indent, \cn{parindent} = normal
- paragraph indent
-
-\noindent
-\ntnote2 Space after theorem head: \verb+{ }+ = normal interword space;
- \cn{newline} = linebreak
-
-\smallskip
-Apply the new theorem style in the same manner as the predefined ones.
-For examples, see the file \fn{thmtest.tex}.
-
-
-\section{Proofs}
-
-A predefined \env{proof} environment provided by the \pkg{amsthm}
-package produces the heading \qq{Proof} with appropriate spacing and
-punctuation. The proof environment is primarily intended for short
-proofs, no more than a page or two in length; longer proofs are
-usually better done as a separate \cn{section} or \cn{subsection} in
-your document.
-
-An optional argument of the proof environment allows you to substitute
-a different name for the standard \qq{Proof\/}. If you want
-the proof heading to be, say, \qq{Proof of the Main Theorem}, then write
-\begin{verbatim}
-\begin{proof}[Proof of the Main Theorem]
-\end{verbatim}
-
-A QED symbol, \qedsymbol, is automatically appended at the end of
-a \env{proof} environment. To substitute a different end-of-proof
-symbol, use \cn{renewcommand} to redefine the command \cn{qedsymbol}.
-For a long proof done as a subsection or section instead of with the
-\env{proof} environment, you can obtain the symbol and the usual
-amount of preceding space by using \cn{qed}.
-
-Placement of the QED symbol can be problematic if the last part of
-a \env{proof} environment is a displayed equation or list environment
-or something of that nature. In that case put a \cn{qedhere} command at
-the place where the QED symbol should appear, for example,
-\begin{verbatim}
-\begin{proof}
-...
-\begin{equation}
-G(t)=L\gamma!\,t^{-\gamma}+t^{-\delta}\eta(t) \qedhere
-\end{equation}
-\end{proof}
-\end{verbatim}
-When used with the \pkg{amsmath} package, version 2 or later, \cn{qedhere}
-will position the QED symbol flush right; with earlier versions, the
-symbol will be spaced a quad away from the end of the text or display.
-
-If \cn{qedhere} produces an error message in an equation, try using
-\verb'\mbox{\qedhere}' instead.
-
-\begin{thebibliography}{[AF]}
-
-\bibitem[AF]{AF} AMS Author FAQ,
-\texttt{http://www.ams.org/authors/author-faq.html}
-
-\end{thebibliography}
-
-\end{document}
diff --git a/Master/texmf-dist/doc/latex/amslatex/changes.pdf b/Master/texmf-dist/doc/latex/amslatex/changes.pdf
deleted file mode 100644
index c74e7bc063f..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/changes.pdf
+++ /dev/null
diff --git a/Master/texmf-dist/doc/latex/amslatex/cite-xa.tex b/Master/texmf-dist/doc/latex/amslatex/cite-xa.tex
deleted file mode 100644
index d6930f7cbf1..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/cite-xa.tex
+++ /dev/null
@@ -1,221 +0,0 @@
-\documentclass{article}
-\usepackage[author-year]{amsrefs}
-
-\newcommand{\latin}{\emph}
-
-\begin{document}
-
-\title{Evolutionary walks through a land plant morphospace}
-\author{Karl J. Niklas}
-\def\jinfo{Journal of Experimental Botany, Vol. 50, No. 330, pp. 39-52,
-  January 1999, \copyright\ Oxford University Press 1999}
-
-\maketitle
-\section{Introduction}
-
-Wright's protocol has been successfully recast in terms of spatial
-domains containing all (or at least many) of the conceivable
-morphological variants (`morphospaces' \latin{sensu}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%Thomas and Reif, 1993).
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ocite{TR93}).
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-In this paper, I review the construction of a morphospace for early land
-plants
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%(Niklas and Kerchner, 1984; Niklas, 1997a, b)
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\cites{NK84,N97-adaptive-walks,N97-effects}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-and show how it can be used \ldots.
-
-\ldots\ horizontally cantilevered branches impose the largest bending
-moments on subtending branches
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%(Niklas, 1992, 1994a).
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\cites{N92,N94-allometry}.
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\ldots\ This definition removes the sharp dichotomy said to exist
-between `object' and `process' complexity (i.e. the number of different
-parts in an organic system versus the number of different interactions
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%among them; McShea, 1996).
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-among them \cite{M96}).
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\ldots\ fossil record for Devonian and Carboniferous vascular land
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%plants (Niklas et al., 1980, 1983; Gensel and Andrews, 1984).
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-plants \cites{NTK80,NTK83,GA84}.
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\begin{bibsection}
-\begin{biblist}
-
-\bib*{HSW80}{collection}{
-  editor={Hecht, M.},
-  editor={Steere, W.},
-  editor={Wallace, B.},
-  date={1980},
-  title={Evolutionary biology},
-  publisher={Plenum Publishing},
-  address={New York},
-}
-
-\bib{fn95}{article}{
-  author={Farnsworth, K. D.},
-  author={Niklas, K. J.},
-  date={1995},
-  title={Theories of optimization, form and function in branching
-  architectures in plants},
-  journal={Functional Ecology},
-  volume={9},
-  pages={355\ndash 363},
-}
-
-\typeout{}
-\typeout{ [Testing some of the amsrefs warning messages ...]}
-
-\bib{GMW81}{book}{
-  author={Gill, P. E.},
-  author={Murray, W.}
-  author={Wright, M. H.},
-  date={1981},
-  title={Practical optimization},
-  publisher={Academic Press},
-  address={London},
-}
-
-\bib{GA84}{book}{
-  author={Gensel, P. G.},
-  author={Andrews, H. N.},
-  date={1984},
-  title={Plant life in the Devonian},
-  publisher={Praeger Press},
-  address={New York},
-}
-
-\bib{M96}{article}{
-  author={McShea, D. W.},
-  date={1996},
-  title={Metazoan complexity and evolution: is there a trend},
-  journal={Evolution},
-  volume={50},
-  pages={477\ndash 492},
-}
-
-\bib{MWWW73}{book}{
-  author={Meredith, D. D.},
-  author={Wong, K. W.},
-  author={Woodhead, R. W.},
-  author={Wortman, R. H.},
-  date={1973},
-  title={Design and planning of engineering systems},
-  publisher={Prentice-Hall},
-  address={Englewood Cliffs, New Jersey},
-}
-
-\bib{N92}{book}{
-  author={Niklas, K. J.},
-  date={1992},
-  title={Plant biomechanics: an engineering approach to plant form and
-  function},
-  publisher={University of Chicago Press},
-  address={Illinois},
-}
-
-\bib{N94-allometry}{book}{
-  author={Niklas, K. J.},
-  date={1994},
-  title={Plant allometry: the scaling of form and process},
-  publisher={University of Chicago Press},
-  address={Illinois},
-}
-
-\bib{N94-simulation}{article}{
-  author={Niklas, K. J.},
-  date={1994},
-  title={Simulation of organic shape: the roles of phenomenology and
-         mechanism},
-  journal={Journal of Morphology},
-  volume={219},
-  pages={243\ndash 246},
-}
-
-\bib{N97-adaptive-walks}{article}{
-  author={Niklas, K. J.},
-  date={1997},
-  title={Adaptive walks through fitness landscapes for early vascular
-         land plants},
-  journal={American Journal of Botany},
-  volume={84},
-  pages={16\ndash 25},
-}
-
-\bib{N97-effects}{article}{
-  author={Niklas, K. J.},
-  date={1997},
-  title={Effects of hypothetical developmental barriers and abrupt
-         environmental changes on adaptive walks in a computer-generated
-         domain for early vascular land plants},
-  journal={Paleobiology},
-  volume={23},
-  pages={63\ndash 76},
-}
-
-\bib{NK84}{article}{
-  author={Niklas, K. J.},
-  author={Kerchner, V.},
-  date={1984},
-  title={Mechanical and photosynthetic constraints on the evolution of
-  plant shape},
-  journal={Paleobiology},
-  volume={10},
-  pages={79\ndash 101},
-}
-
-\bib{NTK80}{article}{
-  author={Niklas, K. J.},
-  author={Tiffney, B. H.},
-  author={Knoll, A. H.},
-  date={1980},
-  title={Apparent changes in the diversity of fossil plants: a
-         preliminary assessment},
-  xref={HSW80},
-  volume={12},
-  pages={1\ndash 89},
-}
-
-\bib{NTK83}{article}{
-  author={Niklas, K. J.},
-  author={Tiffney, B. H.},
-  author={Knoll, A. H.},
-  date={1983},
-  title={Patterns in vascular land plant diversification},
-  journal={Nature},
-  volume={303},
-  pages={614\ndash 616},
-}
-
-\bib{TR93}{article}{
-  author={Thomas, R. D. K.},
-  author={Reif, W.-E.},
-  % This is just to show what the warning looks like for an empty field:
-  author={},
-  date={1993},
-  title={The skeleton space: a finite set of organic designs},
-  journal={Evolution},
-  volume={47},
-  pages={341\ndash 360},
-}
-
-\end{biblist}
-\end{bibsection}
-
-\end{document}
diff --git a/Master/texmf-dist/doc/latex/amslatex/cite-xb.tex b/Master/texmf-dist/doc/latex/amslatex/cite-xb.tex
deleted file mode 100644
index ab6265a6cec..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/cite-xb.tex
+++ /dev/null
@@ -1,143 +0,0 @@
-\documentclass{amsart}
-\usepackage{amsrefs}
-
-%\usepackage{dual} % not released yet, needs more work
-%\setlength{\dualindent}{-2em}
-
-\newenvironment{dual}{%
-  \par\medskip
-  \trivlist\item[]%
-}{%
-  \endtrivlist
-}
-
-\newcommand{\backup}{%
-  \vspace*{-\baselineskip}\vspace*{-\medskipamount}\nopagebreak
-}
-
-\newtheorem{thm}{Theorem}[section]
-
-\begin{document}
-\title{Citation tests}
-\author{Michael Downes}
-
-   The following examples are derived from
-   \emph{Homology manifold bordism} by Heather Johnston and Andrew
-   Ranicki (Trans.\ Amer.\ Math.\ Soc.\ \textbf{352} no 11 (2000), PII: S
-   0002-9947(00)02630-1).
-
-\bigskip \noindent \rule{\columnwidth}{0.5pt}\par
-
-\setcounter{section}{3}
-\begin{dual}
-The results of Johnston \cite{Jo} on homology
-manifolds are extended here. It is not
-possible to investigate transversality by
-geometric methods---as in \cite{Jo} we employ
-bordism and surgery instead.
-\end{dual}
-
-%Kirby and Siebenmann \cite{KS} (III,\S 1),
-\begin{dual}
-The proof of transversality is indirect,
-relying heavily on surgery theory\mdash see
-Kirby and Siebenmann \cite{KS}*{III, \S 1},
-Marin \cite{M} and Quinn \cite{Q3}. We shall
-use the formulation in terms of topological
-block bundles of Rourke and Sanderson
-\cite{RS}.
-\end{dual}
-
-\begin{dual}
-$Q$ is a codimension $q$ subspace by Theorem
-4.9 of Rourke and Sanderson \cite{RS}.
-(Hughes, Taylor and Williams \cite{HTW}
-obtained a topological regular neighborhood
-theorem for arbitrary submanifolds \dots.)
-\end{dual}
-
-%Wall \cite{Wa} (Chapter 11) obtained a
-\begin{dual}
-Wall \cite{Wa}*{Chapter 11} obtained a
-codimension $q$ splitting obstruction \dots.
-\end{dual}
-
-\begin{dual}
-\dots\ following the work of Cohen \cite{Co}
-on $PL$ manifold transversality.
-\end{dual}
-
-\begin{dual}
-In this case each inverse image is
-automatically a $PL$ submanifold of
-codimension $\sigma$ (Cohen \cite{Co}), so
-there is no need to use $s$-cobordisms.
-\end{dual}
-
-%Quinn (\cite{Q2}, 1.1) proved that \dots
-\begin{dual}
-Quinn \cite{Q2}*{1.1} proved that \dots
-\end{dual}
-
-\begin{dual}\backup
-\begin{thm}[The additive structure of
-  homology manifold bordism, Johnston
-  \cite{Jo}]
-\dots
-\end{thm}
-\end{dual}
-
-\begin{dual}
-For $m\geq 5$ the Novikov-Wall surgery theory
-for topological manifolds gives an exact
-sequence (Wall \cite{Wa}*{Chapter 10}.
-\end{dual}
-
-\begin{dual}
-The surgery theory of topological manifolds
-was extended to homology manifolds in Quinn
-\cites{Q1,Q2} and Bryant, Ferry, Mio
-and Weinberger \cite{BFMW}.
-\end{dual}
-
-\begin{dual}
-The 4-periodic obstruction is equivalent to
-an $m$-dimensional homology manifold, by
-\cite{BFMW}.
-\end{dual}
-
-\begin{dual}
-Thus, the surgery exact sequence of
-\cite{BFMW} does not follow Wall \cite{Wa} in
-relating homology manifold structures and
-normal invariants.
-\end{dual}
-
-\begin{dual}
-\dots\ the canonical $TOP$ reduction
-(\cite{FP}) of the Spivak normal fibration of
-$M$ \dots
-\end{dual}
-
-\begin{dual}\backup
-\begin{thm}[Johnston \cite{Jo}]
-\dots
-\end{thm}
-\end{dual}
-
-\begin{dual}
-Actually \cite{Jo}*{(5.2)} is for $m\geq 7$,
-but we can improve to $m\geq 6$ by a slight
-variation of the proof as described below.
-\end{dual}
-
-\begin{dual}
-(This type of surgery on a Poincar\'e space
-is in the tradition of Lowell Jones
-\cite{Jn}.)
-\end{dual}
-
-\bibliographystyle{amsxport}
-\bibliography{jr}
-
-\end{document}
diff --git a/Master/texmf-dist/doc/latex/amslatex/cite-xh.brf b/Master/texmf-dist/doc/latex/amslatex/cite-xh.brf
deleted file mode 100644
index 217558e24ab..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/cite-xh.brf
+++ /dev/null
@@ -1,24 +0,0 @@
-\backcite {Jo}{{1}{4}{section.1}}
-\backcite {Jo}{{1}{4}{section.1}}
-\backcite {KS}{{1}{4}{section.1}}
-\backcite {M}{{1}{4}{section.1}}
-\backcite {Q3}{{1}{4}{section.1}}
-\backcite {RS}{{1}{4}{section.1}}
-\backcite {RS}{{1}{4}{section.1}}
-\backcite {HTW}{{1}{4}{section.1}}
-\backcite {Wa}{{1}{4}{section.1}}
-\backcite {Co}{{1}{4}{section.1}}
-\backcite {Co}{{1}{4}{section.1}}
-\backcite {Q2}{{1}{4}{section.1}}
-\backcite {Jo}{{2}{4.1}{thm.2}}
-\backcite {Wa}{{2}{4}{thm.2}}
-\backcite {Q1}{{2}{4}{thm.2}}
-\backcite {Q2}{{2}{4}{thm.2}}
-\backcite {BFMW}{{2}{4}{thm.2}}
-\backcite {BFMW}{{2}{4}{thm.2}}
-\backcite {BFMW}{{2}{4}{thm.2}}
-\backcite {Wa}{{2}{4}{thm.2}}
-\backcite {FP}{{2}{4}{thm.2}}
-\backcite {Jo}{{2}{4.2}{thm.3}}
-\backcite {Jo}{{2}{4}{thm.3}}
-\backcite {Jn}{{2}{4}{thm.3}}
diff --git a/Master/texmf-dist/doc/latex/amslatex/cite-xh.tex b/Master/texmf-dist/doc/latex/amslatex/cite-xh.tex
deleted file mode 100644
index e6bc80cc6aa..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/cite-xh.tex
+++ /dev/null
@@ -1,154 +0,0 @@
-%&pdfelatex
-%% This is intended to be a working example of using the amsrefs
-%% backrefs option in conjunction with hyperref. It works for me using
-%% pdflatex [mjd,2002-01-03]. Cf testbib.tex in the hyperref distrib.
-%%
-%% This is pdfTeX, Version 3.14159-14h-released-20010417 (Web2C 7.3.3.1)
-%% (format=pdflatex 2001.12.21)
-%% Package: hyperref 2000/01/22 v6.69c Hypertext links for LaTeX
-
-\documentclass{article}
-\usepackage{times}
-\usepackage[colorlinks,citecolor=red,pagebackref,hypertexnames=false]{hyperref}
-\usepackage[backrefs]{amsrefs}
-
-\newenvironment{dual}{%
-  \par\medskip
-  \trivlist\item[]%
-}{%
-  \endtrivlist
-}
-
-\newcommand{\backup}{%
-  \vspace*{-\baselineskip}\vspace*{-\medskipamount}\nopagebreak
-}
-
-\newtheorem{thm}{Theorem}[section]
-
-\providecommand{\MR}{}
-
-\begin{document}
-\title{Testing amsrefs with the hyperref package}
-\author{MJD}
-\maketitle
-
-   The following examples are derived from
-   \emph{Homology manifold bordism} by Heather Johnston and Andrew
-   Ranicki (Trans.\ Amer.\ Math.\ Soc.\ \textbf{352} no 11 (2000), PII: S
-   0002-9947(00)02630-1).
-
-\setcounter{section}{3}
-\section{Homology manifold bordism}
-
-\begin{dual}
-The results of Johnston \cite{Jo} on homology
-manifolds are extended here. It is not
-possible to investigate transversality by
-geometric methods---as in \cite{Jo} we employ
-bordism and surgery instead.
-\end{dual}
-
-%Kirby and Siebenmann \cite{KS} (III,\S 1),
-\begin{dual}
-The proof of transversality is indirect,
-relying heavily on surgery theory\mdash see
-Kirby and Siebenmann \cite{KS}*{III, \S 1},
-Marin \cite{M} and Quinn \cite{Q3}. We shall
-use the formulation in terms of topological
-block bundles of Rourke and Sanderson
-\cite{RS}.
-\end{dual}
-
-\begin{dual}
-$Q$ is a codimension $q$ subspace by Theorem
-4.9 of Rourke and Sanderson \cite{RS}.
-(Hughes, Taylor and Williams \cite{HTW}
-obtained a topological regular neighborhood
-theorem for arbitrary submanifolds \dots.)
-\end{dual}
-
-%Wall \cite{Wa} (Chapter 11) obtained a
-\begin{dual}
-Wall \cite{Wa}*{Chapter 11} obtained a
-codimension $q$ splitting obstruction \dots.
-\end{dual}
-
-\begin{dual}
-\dots\ following the work of Cohen \cite{Co}
-on $PL$ manifold transversality.
-\end{dual}
-
-\begin{dual}
-In this case each inverse image is
-automatically a $PL$ submanifold of
-codimension $\sigma$ (Cohen \cite{Co}), so
-there is no need to use $s$-cobordisms.
-\end{dual}
-
-%Quinn (\cite{Q2}, 1.1) proved that \dots
-\begin{dual}
-Quinn \cite{Q2}*{1.1} proved that \dots
-\end{dual}
-
-\begin{dual}\backup
-\begin{thm}[The additive structure of
-  homology manifold bordism, Johnston
-  \cite{Jo}]
-\dots
-\end{thm}
-\end{dual}
-
-\begin{dual}
-For $m\geq 5$ the Novikov-Wall surgery theory
-for topological manifolds gives an exact
-sequence (Wall \cite{Wa}*{Chapter 10}.
-\end{dual}
-
-\begin{dual}
-The surgery theory of topological manifolds
-was extended to homology manifolds in Quinn
-\cites{Q1,Q2} and Bryant, Ferry, Mio
-and Weinberger \cite{BFMW}.
-\end{dual}
-
-\begin{dual}
-The 4-periodic obstruction is equivalent to
-an $m$-dimensional homology manifold, by
-\cite{BFMW}.
-\end{dual}
-
-\begin{dual}
-Thus, the surgery exact sequence of
-\cite{BFMW} does not follow Wall \cite{Wa} in
-relating homology manifold structures and
-normal invariants.
-\end{dual}
-
-\begin{dual}
-\dots\ the canonical $TOP$ reduction
-(\cite{FP}) of the Spivak normal fibration of
-$M$ \dots
-\end{dual}
-
-\begin{dual}\backup
-\begin{thm}[Johnston \cite{Jo}]
-\dots
-\end{thm}
-\end{dual}
-
-\begin{dual}
-Actually \cite{Jo}*{(5.2)} is for $m\geq 7$,
-but we can improve to $m\geq 6$ by a slight
-variation of the proof as described below.
-\end{dual}
-
-\begin{dual}
-(This type of surgery on a Poincar\'e space
-is in the tradition of Lowell Jones
-\cite{Jn}.)
-\end{dual}
-
-\bibliographystyle{amsxport}
-\bibliography{jr}
-
-\end{document}
diff --git a/Master/texmf-dist/doc/latex/amslatex/cite-xs.tex b/Master/texmf-dist/doc/latex/amslatex/cite-xs.tex
deleted file mode 100644
index 15167b3b9f1..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/cite-xs.tex
+++ /dev/null
@@ -1,19 +0,0 @@
-\documentclass{amsart}
-\usepackage{amsrefs}
-
-\begin{document}
-
-\section{Introduction}
-
-A single cite \cite{MR1451594}
-and a multiple \cites{Weyl,Gould,Rob,MR95f:17013,Ser77}.
-And then with an option in the middle:
-\citelist{\cite{Rob} \cite{Gould} \cite{MR95f:17013}*{Chapter 18}}.
-
-\begin{bibsection}
-\begin{biblist}
-\bibselect{gktest}
-\end{biblist}
-\end{bibsection}
-
-\end{document}
diff --git a/Master/texmf-dist/doc/latex/amslatex/classes/00readme.txt b/Master/texmf-dist/doc/latex/amslatex/classes/00readme.txt
deleted file mode 100644
index 3422ab571fb..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/classes/00readme.txt
+++ /dev/null
@@ -1,145 +0,0 @@
-00readme.txt for AMS document classes amsart/book/proc 2.0 [2004/08/06]
-
-See manifest.txt for a list of all the files in the distribution.
-
-See install.txt for installation instructions.
-
-The document classes amsart, amsbook, amsproc and related packages are
-provided by the American Mathematical Society for authors to use with
-LaTeX. They produce the overall layout and appearance of AMS
-publications.
-
-In order to use an AMS document class you need to have TeX software
-installed first. TeX is not an AMS product. If you need information on
-getting TeX see one of the following:
-
-  http://www.tug.org/
-  http://www.ams.org/tex/tex-resources.html
-
-Documentation for the AMS document classes is found in
-
-  instr-l.pdf
-  diffs-c.txt
-  amsthdoc.pdf
-  thmtest.tex
-  thmtest.pdf
-
-which are included in the collection.  Additional documentation can be
-found in the amsclass FAQ:
-
-  http://www.ams.org/tex/amsclass-faq.html
-
-The recommended procedure for making a custom document class based on an
-AMS class is to make a copy of the relevant .cls file using a different
-name and edit the copy---e.g., copy amsbook.cls to mybook.cls. (In
-general we advise against using \LoadClass, unless the base class is
-frozen or changes to the base class are under your control.)
-
-For technical support:
-
-  American Mathematical Society
-  Technical Support
-  Publications Technical Group
-  P. O. Box 6248
-  Providence, RI 02940-6248
-  Phone: 800-321-4AMS (321-4267) (USA/Canada) or 401-455-4080
-  tech-support@ams.org
-
-========================================================================
-RECENT CHANGES
-
----ams-c1.ins 2.20 2004/08/03
-Added amsmidx package.
-
----amsclass.dtx 2.20 2004/08/06
-1. Added facility for additional line(s) in copyright block.
-2. Corrected handling of section heading with no title.
-3. Got rid of spurious "Appendix" in t-of-c in \backmatter.
-4. Changed MR number formatting to use new style as on MathSciNet.
-5. Created commands for various style elements and substituted them
-   for hard-coded values to simplify building derived classes.
-6. Added sectioning and otherwise cleaned up commentary.
-
----amsclass.faq - 2004/08/06
-Removed from distribution; replaced by on-line FAQ at
-http://www.ams.org/tex/amsclass-faq.html
-
----amsdtx.dtx 2.06 2004/08/06
-1. Reworked indexing commands for compatibility with doc.sty.
-2. Added option environment for enhanced indexing.
-3. Improved formatting.
-
----amsthdoc.tex 2.20 2004/08/03
-1. Substantially rewritten for clarity.
-2. Added documentation for \newtheoremstyle.
-
----instr-l.tex 2.20 2004/08/05
-Substantially rewritten for clarity and to add instructions for new
-features; see note on amsclass.dtx regarding features.
-
----mrabbrev.bib - 2004/08/05
-Removed from distribution; this is now available separately from
-http://www.ams.org/tools/mrabbrev.bib 
-
----thmtest.tex 2.01 2004/08/02
-1. Corrected counter for theorems with switched headers.
-2. Added section headings for clarity.
-3. Added example ending with a display and \qedhere.
-
----upref.dtx 2.01 2004/07/29
-1. Added code to make package work with hyperref.
-2. Improved documentation.
-
----amsclass.dtx 2.14 2004/04/26 (not released)
-1. Incorporated pending changes left by Michael Downes:
-  - Added trap in headings in case \thanks was set within \author,
-    and added \thanks@warning.
-  - Cleaned up and completed unfinished documentation.
-2. Added braces in \uppercasenonmath to limit scope.
-3. Added \contrib mechanism to handle "non-author" authors.
-4. Segregated definitions of administrative footnotes to permit easier
-   customization for AMS journals.
-5. Added explicit \bibliofont to permit easy change for special uses.
-6. Changed MR number formatting to correspond to new access numbers
-   used by MathSciNet.
-7. Added \@citestyle and \citeform to simplify font changes in citations.
-8. Added OT1 defaults for \DH, \dh, \DJ, \dj, required for author names.
-9. Added \markleft to permit changing of only left running head
-
----amsclass.dtx 2.13 2002/12/04 (not released)
-1. Fixed handling of theorem head punctuation with \swapnumbers.
-2. Changed \proofname to \providecommand in case it's already defined.
-3. Made \small, \Small, etc., robust.
-4. Better spacing in \l@figure to prevent overprinting of figure number.
-5. Changed handling of author names to prevent internal line breaks.
-6. Added \@noparitemfalse in \dth@everypar to prevent weird results in
-   certain (rare) kinds of usage.
-7. Some other cosmetic changes.
-
----amsthdoc.tex 2.02 2000/06/06
-Use article class instead of amsldoc (which is overkill).
-
----amsldoc.cls - 2000/06/06
-Removed from distribution, no longer needed by amsthdoc.
-
----amsclass.dtx 2.07 2000/06/05
-Guard against \\ in argument of \author.
-
----amsclass.dtx 2.06 2000/06/02
-Avoid using \@elt in qed stack because LaTeX output routine falls over
-if triggered when something else is using \@elt.
-
----amsclass.dtx 2.05 2000/05/16
-1. Added \indexintro.
-2. Fixed erroneous init for thm@preskip, thm@postskip.
-
----amsclass.dtx 2.04 2000/03/10
-\newtoks fix for old versions of LaTeX. Added some commentary about \cal.
-
----amsclass.dtx 2.03 2000/01/17
-1. Removed dependency on amsgen package.
-2. Added a warning about graphics for the draft option.
-3. Improved qedhere handling for article/amsthm combination.
-
----amsclass.dtx 2.02 2000/01/17
-Some fixes for the fleqn/qedhere case.
diff --git a/Master/texmf-dist/doc/latex/amslatex/classes/install.txt b/Master/texmf-dist/doc/latex/amslatex/classes/install.txt
deleted file mode 100644
index 87fedfdc25c..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/classes/install.txt
+++ /dev/null
@@ -1,106 +0,0 @@
-install.txt for amscls 2.20 [2004/08/05]
-
-If you have a relatively up-do-date TeX system that complies with the
-TeX Directory Structure (TDS) standard, installing according to the
-instructions in section I below is the easiest method.  See
-
-    http://www.tug.org/tds/tds.pdf
-
-for details on the TDS standard.  If your TeX system does not comply
-with the  TDS standard, please contact the manufacturer of your TeX
-system for details on how to install third-party TeX packages.
-
-The first step is to identify the TEXMF folder that contains files used
-by LaTeX. To do this, look for the file article.cls. If you find, e.g.,
-
-  /usr/local/share/texmf/tex/latex/base/article.cls
-
-then we will define TEXMF to mean /usr/local/share/texmf (everything
-up to the /tex/latex/base part). On a Windows system the file location
-will probably be something like
-
-  c:\sw\texmf\tex\latex\base\article.cls
-
-Then we define TEXMF to mean c:\sw\texmf. In the following
-instructions, wherever you see "TEXMF" substitute the folder name
-determined in this way.
-
-If this terminology does not make sense to you, seek assistance from
-a friend or colleague, or from the company that you bought your TeX
-system from, or contact us at
-
-  tech-support@ams.org
-  800-321-4AMS (321-4267) (USA/Canada)
-  401-455-4080
-
-========================================================================
-I. Installing the easy way.
-
-1. Download the following archive file:
-
-   ftp://ftp.ams.org/pub/tex/amscls.zip
-
-2. View the following files to assess the effects of the upgrade on
-your system:
-
-  00readme.txt
-  install.txt (this file)
-  diffs-c.txt
-
-3. Backup the old version of AMS-LaTeX, preferably by moving it out of the
-TEXMF tree.
-
-4. Extract files fromthe .zip archive using your favorite unzip tool, setting
-the extraction target directory to the texmf root directory.
-
-5. To check the end result, you should find that you now have amsmath.sty
-in the following location
-
-  TEXMF/tex/latex/amscls/amsart.cls
-
-Some TeX systems also use a database to keep track of TeX input files. If
-this database is not updated, your TeX system might not find the newly
-installed files.  Consult your system's documentation to determine how
-to update this database.
-
-6. Some files will appear in both the source area and another area.
-This is because the source form and the in-use form are identical.
-As distributed, the files in the source/latex/amscls area comprise a
-complete copy of the distribution from which all the other files can
-be regenerated if need be. If you need to conserve disk space, you
-could delete the files in the source area, since they are not needed
-for normal use.
-
-========================================================================
-II. Installing the not-so-easy way.
-
-Download ftp://ftp.ams.org/pub/tex/amscls.zip.
-
-Make the following directories, if not already present:
-
-  TEXMF/source/latex/amscls
-  TEXMF/tex/latex/amscls
-  TEXMF/doc/latex/amscls
-
-Backup your old AMS-LaTeX files if they are installed, preferably moving them
-out of the TEXMF tree.
-
-Create a temporary directory and generate documentation files (these assume
-a UNIX TeX installation):
-
-  - make directory /tmp/amscls
-  - unzip -d /tmp/amscls amscls.zip
-  - cd /tmp/amscls
-  - Run latex on the file ams-c1.ins to produce .cls and .sty files
-  - Run latex on *.tex
-  - [optional] Run latex on *.dtx (technical documentation)
-  - move *.dvi, *.pdf, *.tex to TEXMF/doc/latex/amscls
-  - [optional] move *.dtx to TEXMF/doc/latex/amscls
-  - [optional] convert .dvi to .ps or .pdf
-  - move *.sty and *.cls to TEXMF/tex/latex/amscls
-  - delete /tmp/amscls
-
-Some TeX systems also use a database to keep track of TeX input files. If
-this database is not updated, your TeX system might not find the newly
-installed files.  Consult your system's documentation to determine how to
-update this database.
diff --git a/Master/texmf-dist/doc/latex/amslatex/classes/manifest.txt b/Master/texmf-dist/doc/latex/amslatex/classes/manifest.txt
deleted file mode 100644
index 9cc4cd958e7..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/classes/manifest.txt
+++ /dev/null
@@ -1,41 +0,0 @@
-
-texmf/bibtex/bst/ams/
-  amsalpha.bst
-  amsplain.bst
-
-texmf/doc/latex/amscls/
-  amsart.template
-  amsbook.template
-  amsproc.template
-  amsthdoc.pdf
-  diffs-c.txt
-  instr-l.pdf
-  thmtest.pdf
-
-texmf/source/latex/amscls/
-  00readme.txt
-  ams-c1.ins
-  amsalpha.bst
-  amsart.template
-  amsbook.template
-  amsclass.dtx
-  amsdtx.dtx
-  amsmidx.dtx
-  amsplain.bst
-  amsproc.template
-  amsthdoc.tex
-  diffs-c.txt
-  install.txt
-  instr-l.tex
-  manifest.txt
-  thmtest.tex
-  upref.dtx
-
-texmf/tex/latex/amscls/
-  amsart.cls
-  amsbook.cls
-  amsdtx.cls
-  amsmidx.sty
-  amsproc.cls
-  amsthm.sty
-  upref.sty
diff --git a/Master/texmf-dist/doc/latex/amslatex/diffs-c.txt b/Master/texmf-dist/doc/latex/amslatex/diffs-c.txt
deleted file mode 100644
index 55a1c98793e..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/diffs-c.txt
+++ /dev/null
@@ -1,319 +0,0 @@
-diffs-c.txt [2004/08/06]
-
-History of changes for AMS document classes, the amsthm package, and
-other packages distributed in this collection.
-
-========================================================================
-Differences in amsthm 2.20 (August 2004)
-
----Added a fallback definition for \swappedhead@plain (used in
-   amsthm.sty 1.x).
-
----For \proofname, changed from \newcommand to \providecommand in case
-   it's already defined.
-
----Improved the handling of \qed when the [fleqn] option is used.
-
----Avoid using \@elt in qed stack because LaTeX output routine falls
-   over if triggered when something else is using \@elt.
-
-========================================================================
-Differences in amsart/amsbook/amsproc 2.20 (August 2004)
-
----Removed dependency on amsgen package.
-
----Added warning message about graphics when draft option is used.
-
----Added a check for \ifhmode when adding punctuation, and provided
-   \nopunct for omitting punctuation when not wanted.
-
----Made \small, \Small, etc., robust in case they are used in a
-   \caption.
-
----Changed handling of author names to prevent line breaks within
-   names.
-
----For author URLs, made ~ a printable character.
-
----amsart, amsproc: Defined \@logofont and \@copyinsfont and moved font
-   instructions out of \set@logo and \@setcopyright, to simplify style
-   changes in derivative classes.
-
----Added \copyins to \@reinserts so that it would be included in the
-   page length calculation when a float is input on the first page
-
-!! This change may affect line breaks and page breaks.
-
----Added provision for an extra line following the copyright line with
-   \@extracrline (for use in derivative classes).
-
----amsart, amsproc: Added \contrib (similar to \author) to handle names
-   of persons who provided, e.g., an introduction or appendix.  Usage:
-     \contrib[with Appendix 1 by]{John Smith}
-     \contrib[and Appendix 2 by]{Henry Moore}
-     \contrib{Roger Williams}
-   This will be set as part of the author block:
-     ...[authors]..., with Appendix 1 by John Smith, and Appendix 2
-     by Henry Moore and Roger Williams
-   Contributors are ignored when generating running heads.
-
----Added \thanks@warning in case \thanks is included in \author.
-
----Added \markleft to permit easy changes to left running head only.
-
----Defined \@cleartopmattertags and moved commands to do this out of
-   \maketitle.
-
----Added OT1 defaults for \DH, \dh, \DJ, \dj (ordinarily in T1 only).
-
----Added braces to limit scope of \uppercasenonmath.
-
----Segregated definition of administrative footnotes (\@adminfootnotes)
-   to permit easier customization for derivative document styles.
-
----amsart: When subsection has no title, made number bold.
-
----Fixed the handling of theorem head punctuation when \swapnumbers is
-   used.  Used \thm@headsep instead of \labelsep for theorem heads.
-
----Provided \@citestyle and \citeform to simplify change of font used
-   in citation.
-
----Provided \bibliofont to allow author to make change.
-
----Provided \@bibtitlestyle, \@defaultbiblabelstyle and
-   \@indextitlestyle to simplify style changes.
-
----Changed output format of \MR to recognize change in format of
-   MathSciNet reference numbers; output is now all lightface instead
-   of having a bold volume number.
-
-!! This change will result in a change of appearance.
-
----Reset \chaptername with \backmatter to avoid spurious "Appendix" in
-   t-of-c.
-
----Added \indexintro to allow a block of text at the top of an index.
-
----Made index ragged right and suppressed hyphenation.
-
----Added \seeonly = "see" to get around unfortunate use of \see for
-   "see also"; added \seealso (from makeindex) for compatibility with
-   material originally set with a LaTeX document class.
-
-========================================================================
-Differences in upref 2.0 (July 2004)
-
----Package will now work with hyperref, regardless of package input
-   order.
-
-========================================================================
-========================================================================
-Differences in amsthm 2.0 (November 1999)
-
----Allow line breaks in theorem headings (added \deferred@thm@head and
-   related code).
-
----Make \end{proof} force end of paragraph so following text is
-   indented (oversight in version 1.2).
-
-!! This change may affect line breaks and page breaks.
-
----Added \qedhere command for flush-right QED symbol in displayed
-   equations.
-
----Added amsthdoc.tex documentation file (taken from amsldoc.tex).
-
----Merged amsthm.dtx into amsclass.dtx.
-
-========================================================================
-Differences in amsart/amsbook/amsproc 2.0 (November 1999)
-
----Corrected erroneous default style for labelenumi (should be parens
-   instead of period); increase list left margins slightly.
-
-!! To revert to former style: \renewcommand{\labelenumi}{\theenumi.}
-
----amsart: For "swapped" theorem heads (numbers shifted to the left
-   margin) the number font was changed to lightface to match subsection
-   numbers. This is an AMS journal style requirement---old behavior was
-   incorrect.
-
-!! This change may affect line breaks and page breaks.
-
----Overfull \vbox messages for every other page: increased headheight
-
----Added openany option for amsbook
-
----Moved erroneously placed \endgroup in \curraddr, \email and \urladdr
-
----Added a year option to \subjclass (default to 1991 for backward
-   compatibility).
-
----For \cleardoublepage, use \pagestyle{empty} for blank pages.
-
----Empty argument of \thanks: do nothing instead of printing an empty
-   footnote.
-
----Clear up contradictory font size commands for abstract; always
-   \Small,
-
----Omit final punctuation for \section{} head containing only a number.
-
----Added \contentsnamefont to make changes easier.
-
----Read a .cfg file.
-
----Changed \parindent\z@ to \@parboxrestore in \@serieslogo to avoid
-   side effects depending on context of pagebreaks.
-
----Use \protect instead of \@nx in \@secmark.
-
----Moved \thispagestyle{firstpage} closer to beginning of \maketitle to
-   assure that the logo will be set on the first page if long abstract
-   breaks to second page (for derivative classes that don't box the
-   abstract).
-
----Added support for paragraph, subparagraph.
-
----In \partrunhead, added \ignorespaces, \unskip.
-
----In \@starttoc, set \parskip to zero.
-
----In \indexchap, rearranged commands to fix vertical spacing for
-   title; wrong \baselineskip was being used, resulting in title 6pt
-   too low.
-
----Footnote failure in minipage: Changed \@makefnmark so that it
-   doesn't use math mode.
-
----Added figure* and table* environments
-
----Revised \@cflci to do the right thing with drop folio at the end of
-   a two-column page.
-
----Incorporate amsthm package by direct embedding instead of
-   \RequirePackage.
-
----Added missing default definition for \MRhref.
-
----Use \MakeTextUppercase if available to handle latin-1 characters in
-   author names.
-
----amsbook: Print keywords and date info on title-page obverse if
-   given.
-
----Added various features for AMS in-house use: \dateposted, e-only
-   option, \Mc, etc.
-
-========================================================================
-Differences in amsart/amsbook/amsproc 1.2 (January 1995)
-
----Documentation
-
-The documentation for the AMS documentclasses, formerly contained in
-amslatex.tex, is now found in instr-l.tex in the amslatex/classes area.
-This is a copy of the file instr-l.tex that is found in the author-info
-area of e-math.ams.org. That area contains additional information
-pertaining specifically to the submission of LaTeX or AmS-TeX documents
-to AMS publications.
-
----New documentclass "amsproc".
-
-A document class amsproc has been added for books that consist of a
-collection of articles, such as the proceedings of a conference.
-
----Different placement of "abstract" environment.
-
-The abstract should now be entered *before* the \maketitle command.
-This provides maximum control over the position and vertical spacing
-when printing the abstract information at different places, as required
-by different AMS publications---for example, in some publications the
-abstract may be required to fall between certain other elements in the
-beginning section of a document, or it may be postponed to the end of
-the document, or it might even be omitted entirely. If an abstract is
-entered after \maketitle, it will still be printed, but with a warning
-(and possibly in the wrong place or with wrong spacing).
-
----Treatment of the @ character.
-
-As the AMS document classes automatically load the amsmath package, all
-changes for amsmath 1.2 affect the AMS classes also. Note in particular
-that the @ character is no longer a special command prefix, so to
-produce a printed @ in an e-mail address you should now write simply
-@ instead of @@.
-
----The nonbreaking dash commands @-, @--, @--- are no longer available
-because @ as a special command prefix has disappeared. An alternative
-\nobreakdash command is provided in the amsmath package.
-
----Added "nomath" option.
-
-The AMS document classes now take an option nomath that suppresses
-the automatic loading of the amsmath package. This is sometimes helpful
-in converting a pre-existing document to AMS style if you only want to
-do a quick conversion without attempting to deal with any of the math.
-
----Theorem handling.
-
-Theorem setup is now handled by the amsthm package instead of the
-"theorem" package. \theorembodyfont, \theoremheaderfont, etc are not
-used any more. See amsldoc.tex and thmtest.tex for details.
-
----The old environments pf, pf* are superseded by a single proof
-environment. It takes an optional argument to specify an alternative
-heading text.
-
-If you are converting an older document to run with \documentclass
-instead of \documentstyle, here is how you could provide
-backward-compatible definitions for pf and pf*:
-
-  \newenvironment{pf}{\proof[\proofname]}{\endproof}
-  \newenvironment{pf*}[1]{\proof[#1]}{\endproof}
-
----\small now produces 9pt text; \tiny now produces 6pt text
-
-Formerly \small produced the same typesize as \footnotesize (8pt). Now
-they produce different sizes, normally 9 and 8 respectively. Also the
-range of typesize-changing commands is filled out to include, below
-\normalsize, the following: \small, \Small, \SMALL, \tiny, \Tiny.
-\footnotesize and \scriptsize are retained as synonyms of \Small and
-\SMALL respectively. As it stands \tiny no longer produces the same
-typesize as it did before (now 6 instead of 5), except in compatibility
-mode. This might affect some existing documents if they are updated to
-use \documentclass instead of \documentstyle. Similarly, \large now
-produces 11pt if the base size is 10pt, where formerly it produced
-12pt.
-
-New commands \larger and \smaller are provided for changing the
-typesize relative to the current size. These commands take an optional
-integer argument to specify how many steps to go up or down: \larger[2]
-means go up two sizes, and \larger without an optional argument is the
-same as \larger[1]. The list of sizes is a standard progression of
-type sizes and associated linespacing values as defined by the
-documentclass. If you need finer control over type size or linespacing,
-consult the LaTeX documentation about the \fontsize command.
-
----Extra documentclass options 8pt, 9pt, 11pt, 12pt
-
----The \qed symbol is now an open square
-
-The \qed symbol is no longer a filled black square, but an open square,
-and it is positioned at the right margin, instead of at a fixed
-horizontal distance from the preceding text. If the \qed command is
-used inside a displayed equation, however, it will be placed at a fixed
-distance from the preceding material (correct placement in this case is
-limited by some technical difficulties).
-
----The command \rom was renamed to \upn.
-
-The command \rom, for making numbers and punctuation roman/upright in
-italic text, has been renamed \upn ``upright punctuation or number''.
-It will in most cases suffice to leave this refinement undone until a
-document is sent to a publisher for final typesetting, and furthermore,
-certain publications at the AMS now use special in-house italic fonts
-that have upright numbers and punctuation built in, making the use of
-\upn unnecessary even then. For general preprint-type use, this
-refinement is one that most users probably won't care to bother with.
-
-========================================================================
diff --git a/Master/texmf-dist/doc/latex/amslatex/diffs-m.txt b/Master/texmf-dist/doc/latex/amslatex/diffs-m.txt
deleted file mode 100644
index 0bfa0ff69d4..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/diffs-m.txt
+++ /dev/null
@@ -1,552 +0,0 @@
-diffs-m.txt [1999/12/15] American Mathematical Society
-
-This is a synopsis of the principal differences between various versions
-of the amsmath package and its companion packages.
-
-A synopsis of changes in the "AMS-LaTeX" distribution is included at the
-end of this file. See also diffs-c.txt in the amslatex/classes area.
-
-Those upgrading from version 1.2 to version 2.0 will probably be
-interested in the question:
-
-  After I upgrade will anything fail in my pre-existing documents?
-
-Certain of the bug fixes have the potential to affect the output of
-existing documents in the following ways:
-
----Vertical spacing for some displayed equations will change because
-"abovedisplayshortskip" is now applied when possible.
-
----Incorrect horizontal spacing for certain math constructs will change,
-e.g., for \iint\nolimits or a subscript on a double-accented letter.
-
----The default subscript placement in displayed formulas for \varinjlim,
-\varprojlim, \varliminf, \varlimsup is now below rather than to the
-side. To get the old behavior, add \nolimits---e.g.,
-\varliminf\nolimits_{...}.
-
----Ellipsis dots in text (\ldots or \dots) will now behave the same as
-in standard LaTeX; the surrounding space may therefore change.
-
-During regression testing we found some errors cropping up in documents
-from incorrect usage that had not been caught with version 1.2. Although
-these errors are relatively rare, documents containing such usage will
-need to be corrected before they will run properly with version 2.0:
-
----Use of two mutually exclusive display structures for the same
-display. In this example the outer \[ \] are redundant:
-
-      \[
-      \begin{align*}
-      ...
-      \end{align*}
-      \]
-
----Inadequate argument markup for math accents:
-
-      \hat \mathcal{C}
-
-This should have been written with braces surrounding the argument of
-the \hat command: \hat{\mathcal{C}}.
-
-For documents where error messages crop up after the upgrade, there are
-various possible approaches, including:
-
-(a) Change instances of incorrect usage (if applicable).
-
-(b) Put a copy of amsmath.sty version 1.2 into the home directory of the
-document. Then it should continue to work the same as before.
-
-(c) Use the snapshot package in combination with a shell script to
-arrange that version 1.2 of amsmath is found instead of 2.0 when
-processing the document. See ftp://ftp.ams.org/pub/tex/snapshot.*. This
-approach requires a certain amount of technical knowledge.
-
-(d) Downgrade to version 1.2 again.
-
-========================================================================
-Changes in amsmath 2.0 [November 1999]
-
----The AMS-LaTeX User's Guide (amsldoc.tex) has been turned into the
-   AMSmath User's Guide by moving the amsthm documentation into a
-   separate file (amsthdoc.tex) in the amslatex/classes area.
-
----Restored normal use of "shortskip" spacing in single equations.
-
-[!! NOTE: This means that page breaks may change in existing documents.]
-
----Restored normal use of available shrink around binary operators in
-   single equations.
-
----Fixed poor subscript placement for double-accented letters. Math
-accent handling was reworked in the process in such a way that the
-capitalized forms of the math accent commands are no longer necessary.
-\hat{\hat{X}} will do proper alignment of the second accent. \Hat et
-cetera are retained for compabitility reasons. (Thanks to Javier Bezos
-for donating some code from his accents package.)
-
-[!! NOTE: Improper math accent use will now produce wrong output.]
-
-Suppose that we have \boldH defined in the preamble as
-\newcommand{\boldH}{\mathbf{H}}. Then the following examples illustrate
-recommended usage.
-
-     \hat{\mathbf{H}}    OK
-     \hat{\boldH}        OK
-     \hat\boldH          Works OK, but deprecated by the LaTeX book
-     \hat\mathbf{H}      Not OK! Output will be incorrect.
-
-Since the output will be wrong, amsmath gives an error message when the
-last variant is detected.
-
----The following kinds of mixed structures worked by happenstance with
-   amsmath 1.2, although they should have produced an error message.
-   With amsmath 2.0 they will produce an error or warning message.
-
-   [!! NOTE: Potential error messages]
-
-    % Outer \[ \] is redundant
-
-    \[
-    \begin{align*}
-     ...
-    \end{align*}
-    \]
-
-    % Outer \begin{equation*} ... \end{equation*} is redundant
-
-    \begin{equation*}\begin{alignat*}{2}
-    ...
-    \end{alignat*}
-    \end{equation*}
-
-    % No printed material is allowed between \begin{equation} and
-    % \begin{split}:
-
-    \begin{equation*}\left \{
-    \begin{split}
-     ...
-    \end{split}\right .
-    \end{equation*}
-
----diff12.tex is replaced by diffs-m.txt and diffs-c.txt, with the
-   latter moving to the amslatex/classes area.
-
----Added an "?" option which gives some information about the available
-   documentation.
-
----The amsmath definitions for matrix, pmatrix, and cases are
-   incompatible with the plain-TeX syntax for \pmatrix, \matrix, and
-   \cases, which are used occasionally by some authors in LaTeX
-   documents. In version 2.0 the error messages resulting from the
-   plain-TeX syntax have been made more intelligible.
-
----If you need the boldsymbol facilities of the amsbsy package, use of
-   the "bm" (boldmath) package is recommended instead for new documents.
-   The amsbsy package is retained for compatibility with existing
-   documents. If you have a recent version of LaTeX (1998 or newer) you
-   already have the bm package; otherwise you may need to get it from
-   CTAN. (It is not an AMS package.)
-
----\iint\nolimits: Fixed poor placement of subscript (also \iiint,
-\idotsint, etc).
-
----\varinjlim, \varprojlim, \varliminf, \varlimsup: Default to
-\displaylimits instead of nolimits.
-
----Fixed alignedat so that it doesn't take the first token of its
-   contents and try to interpret it as a number.
-
----Leave text version of \dots and \ldots unchanged.
-
----Changed \numberwithin so it no longer assumes previous definition of
-   \thesomething contained no prefixes.
-
----\mathbf{\Gamma}: Leave cap Greek letters alone instead of converting
-   them from variable (fam 7) to fixed (fam 0). \mathbf{\gamma} still
-   fails---but that's a math font problem.
-
----\mathindent is aliased to \@mathmargin so that when the fleqn option
-   is used, users can reset it as the LaTeX book advertises.
-
----With the showkeys package: Corrected loss of marginal notes when
-labels occurred inside an align environment.
-
----Carried over some tweaks (\bmod, \right/leftarrowfill) from the 1996
-   version of plain.tex.
-
----Adjusted spacing of overarrow@ and underarrow@ to allow more room for
-   larger cmsy arrowheads.
-
----Corrected spurious "overfull \hbox" warnings for \xrightarrow.
-
----Corrected poor spacing for \xleftarrow.
-
----Removed the \leavevmode in \smash which caused trouble for some
-   applications (e.g., the crop package) that expected the original
-   LaTeX definition.
-
----Changed \def to \newcommand/\newenvironment where appropriate.
-
----Use \sqrtsign instead of \@@sqrt (but include a backward
-   compatibility hack for the latter).
-
----Left brace in \env{cases} environment would fail to work in
-   certain circumstances: Fix by using \lbrace instead of \{.
-
----Use \ignorespacesafterend where applicable instead of
-   \global\@ignoretrue.
-
----Protected commands in the definition of \theequation were
-   incorrectly expanded by the subequations environment when copying
-   the definition to \theparentequation: Fix by using \protected@edef.
-
----Spurious extra space following punctuation at that end of a display:
-   In \math@cr, \math@cr@@, etc, use \iffalse{\fi instead of simply { to
-   keep an unwanted mathord atom from being added at the end of the
-   current math list; added \endmultline@math to work around a similar
-   sort of problem specific to the `multline' environment.
-
----Various wrong results or no effect for \displaybreak inside "align",
-   "alignat", etc. Resetting \dspbrk@level in the \everycr of
-   \@display@init cleared most of these up.
-
----Changed \displaybreak to issue an error message if enclosed in boxing
-   environment that will keep it from having any effect.
-
----Turned off \displaybreak during the measuring phase of multline.
-
----Fixed some numbering problems with multline and multline* and error
-   for use of \tag.
-
----Use \@gtempa instead of \@tempa where assigned globally (standard
-   save stack precaution).
-
----Save and restore \column@ to keep aligned from screwing up the column
-   counting of a parent align environment. Made \column@ assignments
-   uniformly global, except in a couple of places where the risk of side
-   effects seemed too great.
-
----Error recovery for misspelled '\end{multline}' was not very helpful.
-   Improve \collect@body along lines suggested by Hellström.
-
----Fixed up certain number placement problems with align
-
----Add \alignsafe@testopt to work around a LaTeX bug: when a nested
-   alignment environment that takes an optional argument has an empty
-   first cell (i.e., begins with an &) LaTeX's optional argument
-   scanning screws up the alignment state.
-
----Add `mathdisplay' environment (internal use) to correct several
-   problems of \[ \] and the `equation' environment arising from the
-   previous implementation as a degenerate case of `gather'.
-
----It is possible now to use \eeq as an abbreviation for \end{equation}
-(one of the consequences of the preceding change). But still not \eal
-for \end{align} or certain other display structures.
-
----Reorganize `split' internal calling sequence to go along with the use
-   of `mathdisplay' in \[ \] and `equation'.
-
----Suppression of LaTeX error messages during measuring phase made
-   primitive TeX errors harder to understand; stop suppressing. (As a
-   result, users will sometimes get redundant error messages now.)
-   Remove obsolete Sb, Sp environments again.
-
----The file amsintx.dtx was removed from the distribution pending
-   further development.
-
----Remove the \ifinany@ switch, use \spread@equation instead to achieve
-   the same ends.
-
----Remove unbracefonts@ function, no longer needed after changes in
-   math accent handling.
-
----Got rid of the special trap for '^x that had been carried over from
-AMS-TeX.
-
----Made \overline, \doteq, \longrightarrow, etc, robust.
-
----Changed \relbar to use \std@minus---otherwise \underleftrightarrow
-works poorly in a \DeclareMathOperator definition.
-
----Use \new@ifnextchar in matrix, pmatrix, cases so that \\<newline>[x]
-doesn't trigger an error.
-
----Bug fix for nested use of \label inside minipage inside equation.
-
----Add minalignsep after every second column in aligned, for consistency
-with align.
-
-========================================================================
-Changes in amsmath 1.2 [January 1995]
-
----Name change; relation to the "amsfonts" package
-
-In version 1.1 of AMS-LaTeX, the name of this package was "amstex". The
-new name is "amsmath". The amstex package automatically invoked the
-amsfonts package as well; the amsmath package does not.
-
----Adapted for LaTeX2e
-
-Old method of invocation:
-
-  \documentstyle[amstex]{article}% LaTeX 2.09
-
-New method of invocation:
-
-  \documentclass{article}
-  \usepackage{amsmath}
-
----Handling of options intlim, nosumlim, nonamelm, righttag, ctagsplt
-
-Old usage:
-
-  \documentstyle[amstex,righttag,intlim]
-
-New usage:
-
-  \usepackage[reqno,intlimits]{amsmath}
-
-Several option names were changed (mainly, they are no longer restricted
-to eight characters):
-
-  intlim   -> intlimits
-  nosumlim -> nosumlimits
-  nonamelm -> nonamelimits
-  righttag -> reqno         [for consistency with "leqno"]
-  ctagsplt -> centertags
-
----Character @ is no longer used as a special command prefix
-
-Certain commands in the amstex pkg started with "@" instead of "\". This
-special usage has been discontinued, except for the amscd package, and
-then only within the CD environment. Practically speaking, this means
-primarily that it is no longer necessary to use doubled @@ to get a
-single printed @ character (e.g., in e-mail addresses).
-
----The @, and @! micro-spacing commands are no longer provided
-
-As a consequence of the @ character change, "@," and "@!" are no longer
-recognized spacing commands. An \mspace command is provided that can be
-used instead; see the AMSmath User's Guide.
-
----Extensible arrow commands @>>> and @<<<
-
-The commands @>>> and @<<< are no longer available [except in the CD
-environment of the amscd package]; alternative commands \xleftarrow and
-\xrightarrow are provided by the amsmath package. The sub and
-superscripts are given through an optional resp. mandatory argument, for
-example
-
-  X\xleftarrow{b}Y                  % superscript "b" only
-  X\xrightarrow[\alpha]{\beta}Y     % sub alpha, sup beta
-
----The command \bold has been superseded by the command \mathbf, as the
-latter is now the standard name provided by LaTeX for this purpose.
-
----The commands \newsymbol, \frak, \Bbb are no longer available because
-the amsfonts package is not loaded by amsmath. In any case those
-commands now have new names---\frak -> \mathfrak, \Bbb -> \mathbb, etc.
-See the amsfonts documentation for further details.
-
----The amsmath package provides \lvert and \rvert to use for vert-bar
-symbols when they act as delimiters (compare \langle, \rangle for
-angle-bracket delimiters). Commands \lVert and \rVert are likewise
-provided instead of \| for paired-delimiter use of the double-vert
-symbol. Use of | and \| for paired delimiters can lead to incorrect
-spacing in rare cases. Further discussion is found in the AMS-LaTeX
-user's guide (amsldoc.tex).
-
----The ~ command is now left unchanged by amsmath; the change
-that makes it remove a redundant preceding or following space character
-is now done only by AMS documentclasses (in version 1.1 this was done by
-the amstex package).
-
----The following rarely used commands are removed to the amsxtra
-package: \accentedsymbol, \sphat, \spcheck, \sptilde, \spdot, \spddot,
-\spdddot, \spbreve, \@))), \@(((.
-
----The six generalized fraction commands \over, \overwithdelims, \atop,
-\atopwithdelims, \above, \abovewithdelims are deprecated and produce
-warning messages. Their functionality can be obtained through \frac,
-\binom, and \genfrac instead. See amsldoc.tex and technote.tex for
-further details.
-
----The \fracwithdelims command is gone, as \genfrac provides
-equivalent functionality (and a little more).
-
----The optional argument of \frac that allowed changing the thickness of
-the fraction line is gone. That functionality is now provided only
-through \genfrac: the need to change the line thickness is so rare in
-practice that it seems better not to burden the ubiquitous \frac command
-with the somewhat time-consuming look-ahead process required for an
-optional argument. I.e., this change will contribute in a small way to
-making your documents run faster.
-
----The commands \lcfrac and \rcfrac for left or right alignment of
-continued fraction numerators are gone; they are replaced by an optional
-argument of the \cfrac command.
-
----A new command \DeclareMathOperator is provided for defining new
-operator names:
-
-\DeclareMathOperator{\Tr}{Tr}
-\DeclareMathOperator*{\xlim}{x-lim}
-
-The * form makes the operator name produce limit-style sub and
-superscripts, like \max or \lim. This is now the preferred method,
-instead of using the old command \operatorname (which is, however,
-retained for now). The command \operatornamewithlimits has been renamed
-\operatorname*. These commands now can also be obtained through a
-separate package amsopn, so it's not necessary to load the entire
-amsmath package just to get that feature.
-
----Environments "Sb", "Sp" retired.
-
-The environments Sb and Sp for multiline subscripts have been replaced
-by a single command \substack, used as follows:
-
-\sum_{\substack{first line\\second line}}
-
-This command can be used equally well in a subscript or superscript, and
-provides better vertical positioning (as compared to Sb, Sp) if a
-multiline subscript is placed on the side, as perhaps for an integral.
-There is also a slightly generalized alternative, an environment
-subarray that allows you to specify either centering or left alignment
-for the contents:
-
-\sum_{\begin{subarray}{l}first line\\second line\end{subarray}}
-
----New command \nobreakdash
-
-A command \nobreakdash is provided to suppress the possibility of a
-linebreak after the following hyphen or dash. For example, if you write
-"$p$\nobreakdash-adic" then a linebreak will never be taken between the
-hyphen and the "adic".
-
----The placement of equation numbers has been substantially improved for
-align, gather, and split. Numbers will now never overlap on top of the
-equation body (as far as we can ascertain), and they are much less
-likely to be shifted up or down unnecessarily when there is actually
-adequate space to leave the number in the normal place. In a few
-remaining cases, an equation number will be shifted unnecessarily
-because technical complications make accurate measurement of the
-available room too difficult; for those cases a \raisetag command is
-provided that allows you to manually adjust the vertical position of the
-equation number.
-
----The [xx]align[at] family of environments has been thoroughly revised:
-now the xalignat environment is gone, as its function has been merged
-into the align environment (it's no longer necessary to specify how many
-side-by-side structures, as was required for xalignat, because align
-automatically handles any number of them). Similarly, the xxalignat
-environment has been replaced by an environment flalign that doesn't
-require you to specify how many side-by-side structures will be needed.
-Certain numbering problems (presence of an equation number when it
-should be absent, or vice versa) have also been cleared up.
-
-(Thanks to David M. Jones for his substantial [volunteer] work behind
-this change and the preceding one.)
-
----The alignedat environment was changed to take two arguments rather
-than one: a mandatory argument (as formerly) specifying the number of
-align structures, and a new optional one specifying the placement of the
-environment (parallel to the optional argument of aligned). However,
-aligned is simpler to use, allowing any number of aligned structures
-automatically, and therefore the use of alignedat is deprecated.
-
----The seldom-used command \oldnos is gone; if you need it, you should
-consult the LaTeX documentation on using fonts (e.g., fntguide.tex) to
-find out how to construct an equivalent command.
-
----A new subequations environment causes all numbered equation
-environments within its scope to be numbered (4.9a) (4.9b) (4.9c) etc.,
-if the preceding numbered equation was 4.8. A \label command immediately
-after \begin{subequations} will produce a \ref of the parent number
-`4.9', not `4.9a'. The counters used by the subequations environment are
-parentequation and equation and standard uses of \addtocounter,
-\setcounter, etc., are possible with those counter names.
-
----The amsmath package (unlike amstex) respects the setting provided by
-the documentclass for putting equation numbers on the right or the left.
-[Technical note: a documentclass that has leqno as the default should
-explicitly pass that option to the amsmath package with
-\PassOptionsToPackage in order for it to be effective.]
-
----The fleqn option for left-aligned instead of centered equations is
-now supported (thanks to David M. Jones).
-
-************************************************************************
-The remainder of this file discusses some changes that do not directly
-pertain to the amsmath package but to the parent distribution known as
-"AMS-LaTeX".
-
-========================================================================
-Changes in AMS-LaTeX 2.0
-
----The AMS-LaTeX User's Guide (amsldoc.tex) is split up into amsldoc.tex
-and amsthdoc.tex, with the latter moving into the "classes" area.
-
----The file amslatex.faq was split into amsmath.faq and amsclass.faq.
-
----The file amslatex.bug was done away with; most of the information was
-merged into diffs-m.txt, diffs-c.txt, amsmath.faq, and amsclass.faq.
-
-========================================================================
-Changes in AMS-LaTeX 1.2
-
----Adapted for LaTeX2e
-
-AMS-LaTeX 1.0 and 1.1 were designed to work with LaTeX 2.09, which
-became obsolete in 1994 with the appearance of "LaTeX2e". AMS-LaTeX 1.2
-has been extensively adapted to take advantage of various features of
-LaTeX2e. It is no longer a separate TeX format---i.e., it does not need
-to be invoked by a separate "amslatex" command.
-
----LaTeX 2.09 font commands (\bf, \it, etc)
-
-Pre-existing documents will for the most part continue to work fine
-without requiring any changes. However, depending on the installation
-options used for your copy of AMS-LaTeX 1.1 you may need to update the
-options list of the \documentstyle command by adding newlfont, for
-example:
-
-  \documentstyle[newlfont]{amsart}
-
----The packages amsfonts, amssymb were moved to the AMSFonts
-distribution. They used to be included in the AMS-LaTeX distribution for
-pragmatic reasons but their natural home is with the AMSFonts
-distribution.
-
----Package amstex renamed to amsmath
-
-The amstex package has been renamed amsmath. The old name `amstex' came
-from the fact that version 1.0 was a more or less straight port into
-LaTeX of selected portions from the macro package AmS-TeX written by
-Michael Spivak, but the historical origins of the package are likely of
-less interest to the general usership---especially looking to the
-future---than a straightforward declaration in the name `amsmath' of the
-sort of features that are provided.
-
-Another important reason for the name change was to make possible some
-progress that would be out of the question (because of the impact on
-existing documents) if the name `amstex' were retained. For example,
-unlike amstex, amsmath doesn't automatically load the amsfonts package,
-as that package was moved out to the AMSFonts distribution as described
-above. If this change were not accompanied by a name change, many
-existing documents would have to be updated by hand (adding
-\usepackage{amsfonts}) in order to run without error. A frozen version
-of amstex.sty is provided for processing pre-existing documents; it
-won't have active maintainence henceforth except for bug fixes. For new
-documents, authors should use the amsmath package.
-
-Therefore, "\usepackage{amstex}" is incorrect usage---do not rely on the
-1994 edition of `The LaTeX Companion' in this respect (unless you obtain
-the errata for Chapter 8; see
-http://ctan.tug.org/info/compan-rev/ch8.pdf).
-
----New documentclass amsproc
-
-A new documentclass amsproc was added for collections of articles, such as
-the proceedings of a conference.
diff --git a/Master/texmf-dist/doc/latex/amslatex/exercise.thm b/Master/texmf-dist/doc/latex/amslatex/exercise.thm
deleted file mode 100644
index 93929b3beb0..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/exercise.thm
+++ /dev/null
@@ -1,8 +0,0 @@
-%% LaTeX2e file `exercise.thm'
-%% generated by the `filecontents' environment
-%% from source `thmtest' on 2005/02/14.
-%%
-\def\th@exercise{%
-  \normalfont % body font
-  \thm@headpunct{:}%
-}
diff --git a/Master/texmf-dist/doc/latex/amslatex/gktest.ltb b/Master/texmf-dist/doc/latex/amslatex/gktest.ltb
deleted file mode 100644
index 4236749372b..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/gktest.ltb
+++ /dev/null
@@ -1,440 +0,0 @@
-\documentclass{amsbook}
-\usepackage{amsrefs}
-\providecommand{\cyr}{}
-\providecommand{\cprime}{\textprime}
-\providecommand{\germ}{\mathfrak }
-
-\begin{document}
-\begin{bibdiv}
-\begin{biblist}
-
-\bib{MR58:27738}{book}{
-    author={Andrews, G.~E.},
-     title={The theory of partitions},
- publisher={Encyclopedia of Mathematics and its Applications, Vol. 2,
-  Addison-Wesley, Mass.-London-Amsterdam},
-      date={1976},
-}
-
-\bib{MR90b:82001}{book}{
-    author={Baxter, R.~J.},
-     title={Exactly solved models in statistical mechanics},
- publisher={Academic Press Inc.},
-   address={London},
-      date={1989},
-      ISBN={0-12-083182-1},
-}
-
-\bib{MR1451594}{article}{
-    author={Benkart, G.},
-    author={Kang, S.-J.},
-    author={Melville, D.},
-     title={Quantized enveloping algebras for Borcherds superalgebras},
-      date={1998},
-      ISSN={0002-9947},
-   journal={Trans. Amer. Math. Soc.},
-    volume={350},
-    number={8},
-     pages={3297\ndash 3319},
-}
-
-\bib{MR95d:17023}{article}{
-    author={Benkart, G.},
-    author={Kang, S.-J.},
-    author={Misra, K.~C.},
-     title={Indefinite Kac-Moody algebras of classical type},
-      date={1994},
-      ISSN={0001-8708},
-   journal={Adv. Math.},
-    volume={105},
-    number={1},
-     pages={76\ndash 110},
-}
-
-\bib{MR93d:17017}{article}{
-    author={Chari, V.},
-    author={Pressley, A.},
-     title={Quantum affine algebras},
-      date={1991},
-      ISSN={0010-3616},
-   journal={Comm. Math. Phys.},
-    volume={142},
-    number={2},
-     pages={261\ndash 283},
-}
-
-\bib{MR26:2519}{book}{
-    author={Curtis, Charles~W.},
-    author={Reiner, Irving},
-     title={Representation theory of finite groups and associative algebras},
- publisher={Interscience Publishers, a division of John Wiley \& Sons, New
-  York-London},
-      date={1962},
-    review={\MR{26 \#2519}},
-}
-
-\bib{Dr86}{incollection}{
-    author={Drinfel$'$d, V.~G.},
-     title={Quantum Groups},
-      date={1987},
-conference={
-    title={Proceedings of the International Congress of Mathematicians},
-    address={Berkeley},
-    date={1986}
-},
- publisher={American Mathematical Society, Providence},
-     pages={798\ndash 820},
-}
-
-\bib{MR94d:17032}{article}{
-    author={Feingold, A.~J.},
-    author={Frenkel, I.~B.},
-    author={Ries, J.~F.~X.},
-     title={Representations of hyperbolic Kac-Moody algebras},
-      date={1993},
-      ISSN={0021-8693},
-   journal={J. Algebra},
-    volume={156},
-    number={2},
-     pages={433\ndash 453},
-}
-
-\bib{MR84f:17004}{article}{
-    author={Frenkel, I.~B.},
-    author={Kac, V.~G.},
-     title={Basic representations of affine Lie algebras and dual resonance
-  models},
-      date={1981},
-      ISSN={0020-9910},
-   journal={Invent. Math.},
-    volume={62},
-    number={1},
-     pages={23\ndash 66},
-}
-
-\bib{Gould}{article}{
-    author={Gould, M.~D.},
-    author={Zhang, R.~B.},
-    author={Bracken, A.~J.},
-     title={Quantum double construction for graded Hopf algebras},
-      date={1993},
-   journal={Bull. Austral. Math. Soc.},
-    volume={47},
-     pages={353\ndash 375},
-}
-
-\bib{MR1633090}{article}{
-    author={Hong, J.},
-    author={Kang, S.-J.},
-    author={Miwa, T.},
-    author={Weston, R.},
-     title={Mixing of ground states in vertex models},
-      date={1998},
-      ISSN={0305-4470},
-   journal={J. Phys. A},
-    volume={31},
-    number={28},
-     pages={L515\ndash L525},
-}
-
-\bib{Jac1}{book}{
-    author={Jacobson, N.},
-     title={Basic algebra II},
- publisher={W. H. Freeman and Company},
-   address={San Francisco},
-      date={1980},
-      ISBN={0-7167-1079-X (v. 2)},
-}
-
-\bib{MR98k:17037}{article}{
-    author={Jeong, K.},
-    author={Kang, S.-J.},
-    author={Lee, H.},
-     title={Lie-admissible algebras and Kac-Moody algebras},
-      date={1997},
-      ISSN={0021-8693},
-   journal={J. Algebra},
-    volume={197},
-    number={2},
-     pages={492\ndash 505},
-}
-
-\bib{Joseph}{book}{
-    author={Joseph, A.},
-     title={Quantum groups and their primitive ideals},
- publisher={Springer-Verlag},
-   address={Berlin},
-      date={1995},
-      ISBN={3-540-57057-8},
-}
-
-\bib{Kac90}{book}{
-    author={Kac, V.~G.},
-     title={Infinite dimensional Lie algebras},
-   edition={3},
- publisher={Cambridge University Press},
-   address={Cambridge},
-      date={1990},
-      ISBN={0-521-37215-1; 0-521-46693-8},
-}
-
-\bib{KMW}{incollection}{
-    author={Kac, V.~G.},
-    author={Moody, R.~V.},
-    author={Wakimoto, M.},
-     title={On ${E}\sb {10}$},
-      date={1988},
-conference={
-    title={Differential geometrical methods in theoretical physics},
-    address={Como},
-    date={1987}
-},
- publisher={Kluwer Acad. Publ.},
-   address={Dordrecht},
-     pages={109\ndash 128},
-}
-
-\bib{Ka93-1}{article}{
-    author={Kang, S.-J.},
-     title={Root multiplicities of the hyperbolic Kac-Moody Lie algebra
-  $HA\sp{(1)}\sb 1$},
-      date={1993},
-      ISSN={0021-8693},
-   journal={J. Algebra},
-    volume={160},
-    number={2},
-     pages={492\ndash 523},
-}
-
-\bib{MR94d:17033}{article}{
-    author={Kang, S.-J.},
-     title={On the hyperbolic Kac-Moody Lie algebra $HA\sb 1\sp
-  {(1)}$},
-      date={1994},
-      ISSN={0002-9947},
-   journal={Trans. Amer. Math. Soc.},
-    volume={341},
-    number={2},
-     pages={623\ndash 638},
-}
-
-\bib{MR97e:17041}{incollection}{
-    author={Kang, S.-J.},
-     title={Root multiplicities of graded Lie algebras},
-      date={1996},
-conference={
-    title={Lie algebras and their representations},
-    address={Seoul},
-    date={1995},
-},
- publisher={Amer. Math. Soc.},
-   address={Providence, RI},
-     pages={161\ndash 176},
-}
-
-\bib{MR1641035}{article}{
-    author={Kang, S.-J.},
-    author={Kashiwara, M.},
-     title={Quantized affine algebras and crystals with core},
-      date={1998},
-      ISSN={0010-3616},
-   journal={Comm. Math. Phys.},
-    volume={195},
-    number={3},
-     pages={725\ndash 740},
-}
-
-\bib{MR93g:17027}{article}{
-    author={Kang, S.-J.},
-    author={Kashiwara, M.},
-    author={Misra, K.~C.},
-    author={Miwa, T.},
-    author={Nakashima, T.},
-    author={Nakayashiki, A.},
-     title={Vertex models and crystals},
-      date={1992},
-      ISSN={0764-4442},
-   journal={C. R. Acad. Sci. Paris S\'er. I Math.},
-    volume={315},
-    number={4},
-     pages={375\ndash 380},
-}
-
-\bib{MR1464137}{article}{
-    author={Kang, S.-J.},
-    author={Kim, M.-H.},
-     title={Borcherds superalgebras and a monstrous Lie superalgebra},
-      date={1997},
-      ISSN={0025-5831},
-   journal={Math. Ann.},
-    volume={307},
-    number={4},
-     pages={677\ndash 694},
-}
-
-\bib{MR95f:17013}{article}{
-    author={Kang, S.-J.},
-    author={Misra, K.~C.},
-     title={Crystal bases and tensor product decompositions of $U\sb q(G\sb
-  2)$-modules},
-      date={1994},
-      ISSN={0021-8693},
-   journal={J. Algebra},
-    volume={163},
-    number={3},
-     pages={675\ndash 691},
-}
-
-\bib{Kash90}{article}{
-    author={Kashiwara, M.},
-     title={Crystalizing the $q$-analogue of universal enveloping algebras},
-      date={1990},
-   journal={Comm. Math. Phys.},
-    volume={133},
-     pages={249\ndash 260},
-}
-
-\bib{Keng82}{book}{
-    author={Keng, H.~L.},
-     title={Introduction to number theory},
- publisher={Springer-Verlag},
-      date={1982},
-}
-
-\bib{Wang}{article}{
-    author={Li, W.~L.},
-     title={Classification of generalized Cartan matrices of hyperbolic
-  type},
-      date={1988},
-   journal={Chinese Ann. Math. Ser. B},
-    volume={9},
-    number={1},
-     pages={68\ndash 77},
-}
-
-\bib{MR98a:20041}{incollection}{
-    author={Littelmann, P.},
-     title={An effective method to classify nilpotent orbits},
-      date={1996},
-conference={
-     title={Algorithms in algebraic geometry and applications},
-   address={Santander},
-      year={1994}
-},
- publisher={Birkh\"auser},
-   address={Basel},
-     pages={255\ndash 269},
-}
-
-\bib{MR2000d:17019}{article}{
-    author={Littelmann, P.},
-     title={Bases canoniques et applications},
-      date={1998},
-      ISSN={0303-1179},
-   journal={Ast\'erisque},
-    number={252},
-     pages={Exp.\ No.\ 847, 5, 287\ndash 306},
-      note={S\'eminaire Bourbaki. Vol.\ 1997/98},
-}
-
-\bib{MR92d:16032}{article}{
-    author={Littelmann, P.},
-    author={Procesi, C.},
-     title={On the Poincar\'e series of the invariants of binary forms},
-      date={1990},
-      ISSN={0021-8693},
-   journal={J. Algebra},
-    volume={133},
-    number={2},
-     pages={490\ndash 499},
-}
-
-\bib{MR92g:20067}{incollection}{
-    author={Littelmann, Peter},
-     title={Good filtrations, decomposition rules and standard monomial
-  theory},
-      date={1991},
-conference={
-     title={Computational aspects of Lie group representations and
-            related topics},
-   address={Amsterdam},
-      date={1990}
-},
- publisher={Math. Centrum Centrum Wisk. Inform.},
-   address={Amsterdam},
-     pages={89\ndash 106},
-}
-
-\bib{MR92b:14027}{incollection}{
-    author={Littelmann, Peter},
-    author={Procesi, Claudio},
-     title={Equivariant cohomology of wonderful compactifications},
-      date={1990},
-conference={
-     title={Operator algebras, unitary representations, enveloping
-            algebras, and invariant theory},
-   address={Paris},
-      date={1989}
-},
- publisher={Birkh\"auser Boston},
-   address={Boston, MA},
-     pages={219\ndash 262},
-}
-
-\bib{MR94m:17016}{book}{
-    author={Lusztig, G.},
-     title={Introduction to quantum groups},
- publisher={Birkh\"auser Boston Inc.},
-   address={Boston, MA},
-      date={1993},
-      ISBN={0-8176-3712-5},
-}
-
-\bib{Nak96}{article}{
-    author={Nakayashiki, A.},
-     title={Fusion of the $q$-vertex operators and its applications
-            to solvable vertex models},
-      date={1996},
-      ISSN={0010-3616},
-   journal={Commun. Math. Phys.},
-    volume={177},
-    number={2},
-     pages={27\ndash 62},
-}
-
-\bib{Rob}{article}{
-    author={Robinson, D.},
-     title={On representations of the symmetric group},
-      date={1938},
-   journal={Amer. J. Math.},
-    volume={60},
-     pages={745\ndash 760},
-}
-
-\bib{Ser77}{book}{
-    author={Serre, J.-P.},
-     title={Linear representations of finite groups},
- publisher={Springer-Verlag},
-      date={1977},
-}
-
-\bib{Weyl}{book}{
-    author={Weyl, H.},
-     title={Classical groups},
-   edition={2},
- publisher={Princeton University Press},
-      date={1946},
-}
-
-\bib{Young4}{article}{
-    author={Young, A.},
-     title={On quantitative substitutional analysis IV},
-      date={1929},
-   journal={Proc. Lond. Math. Soc. (2)},
-    volume={31},
-     pages={253\ndash 272},
-}
-
-\end{biblist}
-\end{bibdiv}
-\end{document}
diff --git a/Master/texmf-dist/doc/latex/amslatex/install.txt b/Master/texmf-dist/doc/latex/amslatex/install.txt
deleted file mode 100644
index e03f5411a1e..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/install.txt
+++ /dev/null
@@ -1,69 +0,0 @@
-install.txt for amsrefs 2.0 [2004-06-30]
-
-Preliminary note: The normal destination directory for amsrefs.sty in a
-standard TDS structure would be texmf/tex/latex/amscls (see step 3
-below). In the future, the amsrefs package will be integrated more
-thoroughly into the amscls distribution, but the current release has to
-be provided in the form of a separate distribution for those who already
-have the amscls distrib but not amsrefs.
-
-------------------------------------------------------------------------
-The first step is to identify the primary location for LaTeX input files
-on your system. Typical examples are
-
-  /usr/local/share/texmf/tex/latex...   (Unix)
-
-  C:\SWP30\TCITeX\TeX\LaTeX...          (Windows)
-
-We define "ROOT" to mean everything preceding the "/tex/latex" part. In
-the second example, this would be "C:\SWP30\TCITeX". ROOT will normally
-end in "texmf"; if it doesn't you may need to consult the documentation
-for your TeX system to find out what to use. In the following
-instructions, wherever you see ROOT substitute the actual directory or
-folder name that is used on your system.
-
-If this terminology doesn't make sense to you, seek assistance from
-a friend or colleague, or from the company that you bought your TeX
-system from, or contact us at
-
-  tech-support@ams.org
-  800-321-4AMS (321-4267) (USA/Canada)
-  401-455-4080
-
-If you have multiple texmf trees (as discussed, for example, in the
-teTeX documentation), you may want to install amsrefs using the
-TEXMFLOCAL tree as the value of ROOT. In due course when you upgrade to
-a newer TeX system, we expect that you will find amsrefs already
-incorporated into the TEXMFMAIN tree as part of the tex/latex/amscls
-area, at which point you will no longer need the copy in your TEXMFLOCAL
-tree.
-
-------------------------------------------------------------------------
-1. Download the following archive file:
-
-   ftp://ftp.ams.org/pub/tex/amsrefs.zip
-
-2. Extract files using the texmf root directory as the destination. Some
-typical examples:
-
-WinZip: Click on "Extract" and then in the "Extract to" box, enter
-        c:\sw\texmf (or whatever ROOT is on your system)
-
-unzip:  unzip amsrefs.zip -d ROOT
-
-3. Please note that although the source files for amsrefs unpack into
-the ROOT/source/latex/amsrefs area at the present time [2001-12-28], the
-other files unpack into .../latex/amscls because that is the natural
-location for them.
-
-To check the end result, you should find that you now have amsrefs.sty
-in the following location (substituting \ or : for / if appropriate):
-
-  ROOT/tex/latex/amscls/amsrefs.sty
-
-If you have a teTeX system you may need to rerun mktexlsr [known in
-earlier versions of teTeX as "texhash"].
-
-For a MikTeX system the command would be "initexmf -u", or look for
-"Refresh the Filename Database" in the MikTeX menus (this may be
-somewhat version-dependent).
diff --git a/Master/texmf-dist/doc/latex/amslatex/instr-l.pdf b/Master/texmf-dist/doc/latex/amslatex/instr-l.pdf
deleted file mode 100644
index 76fabaa0e54..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/instr-l.pdf
+++ /dev/null
diff --git a/Master/texmf-dist/doc/latex/amslatex/instr-l.tex b/Master/texmf-dist/doc/latex/amslatex/instr-l.tex
deleted file mode 100644
index 30aa283237b..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/instr-l.tex
+++ /dev/null
@@ -1,1233 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "instr-l.tex",
-%%%   version   = "2.20",
-%%%   date      = "2004/08/06",
-%%%   time      = "16:17:21 EDT",
-%%%   checksum  = "60855 1233 6587 50183",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1994, 2004 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Publications Technical Group,
-%%%                201 Charles Street,
-%%%                Providence, RI 02904,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, AMS, amslatex, ams-latex, author instructions",
-%%%   supported = "yes",
-%%%   abstract  = "These are instructions for preparing documents for
-%%%                submission to the AMS, using amsmath and AMS LaTeX
-%%%                document classes.",
-%%%   docstring = "The checksum field above contains a CRC-16 checksum
-%%%                as the first value, followed by the equivalent of
-%%%                the standard UNIX wc (word count) utility output of
-%%%                lines, words, and characters.  This is produced by
-%%%                Robert Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1995/06/01]% LaTeX date must be June 1995 or later
-\documentclass{amsart}
-
-\hyphenation{man-u-script man-u-scripts over-view pre-par-ing which-ever}
-
-%%  Define macros for text substitution and for presentation of examples
-\newcommand{\AMS}{American Mathematical Society}
-\def\latex/{{\protect\LaTeX}}
-\def\latexe/{{\protect\LaTeXe}}
-\def\amslatex/{{\protect\AmS-\protect\LaTeX}}
-\def\tex/{{\protect\TeX}}
-\def\amstex/{{\protect\AmS-\protect\TeX}}
-\def\bibtex/{{Bib\protect\TeX}}
-\def\makeindx/{\textit{MakeIndex}}
-
-\newcommand{\filnam}[1]{\mbox{\texttt{\ignorespaces#1\unskip}}}
-\let\fn=\filnam
-\let\cls=\filnam
-\let\env=\filnam
-\let\pkg=\filnam
-\def\opt#1{\filnam{[#1]}}
-
-%%  For this manual, add a section number to the references header, and
-%%  include that section header in the contents list.
-\makeatletter
-\def\thebibliography#1{\section\refname
-  \normalfont\small\labelsep .5em\relax
-  \list{\@arabic\c@enumiv.}{\settowidth\labelwidth{#1.}%
-  \leftmargin\labelwidth \advance\leftmargin\labelsep
-  \usecounter{enumiv}}%
-  \sloppy \clubpenalty4000\relax \widowpenalty\clubpenalty
-  \sfcode`\.\@m}
-%
-%%  Turn off series logo and copyright note
-\let\serieslogo@\relax
-\let\@setcopyright\relax
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%%  Table of contents customizations
-
-\let\tocori=\tableofcontents
-\def\tableofcontents{\tocori
-  \skip@\lastskip \vskip-\lastskip
-  \addtocontents{toc}{\protect\tocpatch}%
-  \vskip\skip@ \relax}
-
-\def\tocsection#1#2#3{%
-  \indentlabel{\@ifnotempty{#2}{\tocnbox{\hss#1 #2.\quad}}}#3}
-\let\tocnbox=\hbox
-\def\tocpatch{%
-  \@xp\let\csname r@tocindent2\@xp\endcsname\csname r@tocindent1\endcsname
-  \def\tocnbox{\hbox to\@tempdima}}
-%%  In this document, subsections are unnumbered, but we want an indent
-%%  to be used.
-\def\tocsubsection#1#2#3{\hbox to\leftskip{}#3}
-\def\l@subsection{\@tocline{2}{0pt}{.5pc}{}{}}
-\makeatother
-
-\newdimen\exindent
-\exindent=3\parindent
-%% Add a high penalty to discourage line breaks within an example
-%% without absolutely prohibiting them.
-{\obeylines
- \gdef^^M{\par\penalty9999 }%
- \gdef\beginexample#1{\medskip\bgroup %
-   \def\(##1){\makebox[0pt]{\normalfont\mdseries##1}}%
-   \def~{\char`\~}\def\\{\char`\\}%
-   \normalfont\ttfamily\frenchspacing %
-   \parindent=0pt#1\leftskip=\exindent\obeylines}
-}%  end \obeylines
-\def\endexample{\endgraf\egroup\medskip}
-\newdimen\exboxwidth
-\exboxwidth=3in
-\def\exbox#1#2{\noindent \hangindent=\exboxwidth
-  \makebox[0pt][r]{\null\normalfont\mdseries#1\unskip\enspace}%
-  \makebox[\exboxwidth][l]{\normalfont\ttfamily\ignorespaces#2}%
-  \normalfont\mdseries\ignorespaces}
-
-\newcommand\cn[1]{\mbox{\def\\{\char`\\}%
-    \normalfont\ttfamily\\\ignorespaces#1\unskip}}
-\let\ttcs=\cn
-\newcommand\ttcsb[2]{%
-  \mbox{\def\\{\char`\\}%
-    \normalfont\ttfamily
-    \\begin\{\ignorespaces#1\unskip\}\ignorespaces#2\unskip}}
-\newcommand\ttcse[1]{\mbox{\def\\{\char`\\}%
-    \normalfont\ttfamily\\end\{\ignorespaces#1\unskip\}}}
-\def\{{\char`\{\relax}
-\def\}{\char`\}\relax}
-
-%%  Provide a meta-command facility; provide an alternate escape
-%%  character so it can be used within the verbatim environment.
-
-\catcode`\|=0
-\begingroup \catcode`\>=13 % in LaTeX2e verbatim env makes > active
-\gdef\?#1>{{\normalfont$\langle$\textup{#1}$\rangle$}}
-\gdef\0{\relax}
-\endgroup
-\def\<#1>{{\normalfont$\langle$\textup{#1}$\rangle$}}
-\newcommand{\Dimen}{\<dimen>}
-\newcommand{\tab}{\textsc{tab}}
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-%%  Provide a dummy titlepage, saving maketitle for the article title.
-%%  Table of contents goes onto the inside front cover.
-
-\def\instrversion{2.20}
-\def\instrdate{August 2004}
-
-\begin{document}
-
-\thispagestyle{empty}
-\vspace*{1.5in}
-\begin{center}
-  {\huge\bfseries Instructions\\[2pt] for Preparation\\[2pt]
-    of Papers\\[2pt] and Monographs
-    \par\vspace{\baselineskip}
-    \amslatex/
-    \par}
-  \vspace{3\baselineskip}
-  \Large
-  Version \instrversion\\[4pt] \instrdate
-\end{center}
-\newpage
-
-\thispagestyle{empty}
-\tableofcontents
-\newpage
-
-\setcounter{page}{1}
-
-\title [ELECTRONIC MANUSCRIPTS: \amslatex/]
-   {Instructions for Preparation\\
-   of Papers and Monographs: \amslatex/}
-\dedicatory{%
-  \mbox{\normalfont\mdseries\small Version \instrversion: \instrdate}}
-
-\maketitle
-
-\section{Introduction}
-
-This manual is directed mainly to authors preparing material for
-publication by the AMS, using \amslatex/ document classes.  As such,
-it deals with the AMS publishing style.  Since these document classes
-are also used by authors who are not submitting items to the AMS,
-the manual also covers topics of more general relevance.  However, it
-assumes familiarity with standard \latex/ techniques and conventions,
-and contains only material specific to AMS packages.
-
-Links to information useful in preparing manuscripts and graphics
-can be found on the AMS Author Resource Center web page \cite{ARC}\@.
-That information supplements this manual, and we recommend that you
-review it.
-
-The AMS produces three major types of publications: journals (both
-print and electronic), proceedings volumes, and monographs.  There
-is a core AMS document class for each: \cls{amsart}, \cls{amsproc}
-and \cls{amsbook}, respectively.  For most journals or book series,
-there is a specific author package, based on one of the core classes.
-If the specific publication is known, the appropriate author package
-should be obtained from the AMS web server \cite{AP} and used for
-preparation of manuscripts.  In addition, there is a separate package
-for editors of proceedings volumes \cite{EP}, with facilities for
-preparing material that does not fit into the normal ``article''
-category.
-
-If the specific publication is not known, an appropriate generic AMS
-document class can be used:
-
-\begin{itemize}
-\item \pkg{gen-j-l} for journal articles (based on \pkg{amsart})
-\item \pkg{gen-p-l} for articles in book proceedings (based on \pkg{amsproc})
-\item \pkg{gen-m-l} for monographs (based on \pkg{amsbook})
-\end{itemize}
-
-The tagging of elements in a manuscript---title, author(s), section
-headings, theorems, etc.--- is consistent through all author packages.
-Thus a manuscript prepared using the appropriate generic document
-class can be modified trivially to use the specific package, simply by
-updating the \cn{documentclass} statement.  For example, to specify
-the \textit{Contemporary Mathematics} proceedings series:
-\begin{verbatim}
-\documentclass{conm-p-l}
-\end{verbatim}
-
-Each author package contains an electronic version of this manual,
-class files, sample documents, and a \texttt{README} file that
-contains information about each of the files in the package.
-
-When an AMS author package is used, both \latex/ and a recent version
-of \amslatex/ must be installed on the computer being used for
-manuscript preparation.  The AMS Author Resource Center web page
-\cite{ARC} has a link to download the most recent version of
-\amslatex/.  The version number appears at the top of the file
-\pkg{amsmath.sty} (and other files in the collection), and is also
-reported in the log file of a \latex/ run; make sure you have
-version 2.0 or later.
-
-\section{Article preparation}
-
-We first address articles intended for journals and proceedings.
-Monographs are addressed in a separate section (see
-page~\pageref{s:mono}).
-
-\subsection*{Starting a new article}\label{ss:newamsart}
-%%
-Individual articles generally have the following structure:
-\begin{itemize}
-\item \verb+\documentclass{...}+
-\item preamble (for document-specific customizations)
-\item \verb+\begin{document}+
-\item top matter information
-\item \verb+\maketitle+ (to set the top matter)
-\item article body
-\item reference list
-\item \verb+\end{document}+
-\end{itemize}
-A detailed template file (included in each package) provides
-a complete set of commands for the article top matter, and the
-instructions for using them.  The most efficient way to start a
-new article is to make a copy of the template and fill it in.
-
-
-\section{The preamble}
-
-The area between the \verb+\documentclass+ statement and the line
-\verb+\begin{document}+ is referred to as the ``preamble''.  This is
-the place to load external packages and define document-specific
-commands.
-
-Available \cn{documentclass} options are described in the file
-\filnam{amsclass.dtx}.  Process this file with \latex/ to obtain a
-version with human-readable documentation.  One option does need to
-be mentioned here: \opt{psamsfonts}; include this option as
-\begin{verbatim}
-\documentclass[psamsfonts]{...}
-\end{verbatim}
-to ensure correct sizing of fonts in environments other than normal text.
-
-\subsection*{Packages}
-%%
-The AMS document classes incorporate the code for the AMS theorem
-(\pkg{amsthm}) package and automatically load the \pkg{amsmath}
-package.  It is not necessary to request either one explicitly.
-The user guides for these packages \cite{ATP,AMP} contain the details,
-which will not be repeated here.  The \pkg{amsfonts} package is loaded
-as well, unless the \opt{noamsfonts} option is specified; see the
-AMSFonts User's Guide \cite{AFG} for the features provided.
-
-Not all publicly available packages are compatible with the AMS
-document classes.  For this reason, we mention some that are:
-\begin{itemize}
-\item \pkg{amssymb} provides names for additional symbols from the
-  AMS symbol fonts; see \cite{AFG} for details.
-\item \pkg{amsmidx} supports multiple indexes for a book; see
-  page~\pageref{ss:indexing}.
-\item \pkg{graphicx} is part of the \latex/ suite, preferred for
-  inclusion of graphics.
-\item \pkg{longtable} facilitates tables longer than one page.
-\item \pkg{upref} forces cross-references with \cn{ref} to roman;
-  see ``Roman type'', page~\pageref{ss:roman}.
-\item \pkg{xypic} is recommended for creating commutative diagrams.
-\end{itemize}
-
-There are several packages that cause particular problems for AMS
-production.  Their use should be avoided if possible:
-\begin{itemize}
-\item \pkg{psfrag}, for applying labels externally to included graphics,
-  may result in a PostScript that can't be converted properly to PDF.
-\item \pkg{epsfig} has been superseded by \pkg{graphicx}.
-\end{itemize}
-
-Don't load any packages that aren't actually needed.
-
-
-\subsection*{New commands}
-%%
-Place all definitions for new commands in the preamble.  This includes
-instructions to access fonts that are not already defined in the AMS
-document classes or \pkg{amsmath}, such as a new math alphabet (see
-\cite{AMP}).
-
-Always use \cn{newcommand}; this will let you know if the name you
-have chosen has already been used.  Do not redefine any command from
-\latex/, \pkg{amsmath}, or any AMS document class, as this could cause
-problems in AMS production.  New definitions may be used to provide
-shorthand forms for mathematical expressions that are used frequently,
-but do not use new definitions for text; for articles posted on-line,
-this will prevent indexing software from identifying relevant
-references.
-
-Use commands and environments provided by the AMS document classes
-and standard packages whenever applicable---for example, you should
-use the AMS \env{proof} environment rather than define your own
-alternative.
-
-When the file is complete, remove any commands that haven't been used.
-
-
-\section{Top matter}\label{s:topmatter}
-
-The top matter associated with an article includes information that
-would appear in a bibliographic reference to the paper, plus additional
-information about the author(s), subject classifications, key words,
-acknowledgments of support, and the abstract.
-
-
-\subsection*{Summary of tags and elements}
-%%
-Table 1 lists the top matter commands provided by \amslatex/
-version 2.0 and later.  Not every tag is necessary for each paper.
-The table shows which tags are necessary and which are optional.
-Requirements for monographs are somewhat different and are described
-later.  The template file included in every author package contains
-all the necessary tags and instructions for using them.
-
-\begin{table}[ht]
-\caption{Top matter tags}
-\begin{minipage}{\textwidth}
-\begin{verbatim}
-\documentclass{amsart}
-|?preamble commands, such as |ttcs|bgroup|0newcommand|egroup, etc.>
-
-\begin{document}
-\end{verbatim}
-\begin{center}
-\begin{tabular}{lcc}
-\                 & \multicolumn{2}{c}{Required by}\\
-\                               & Journals  & Books \\
-\verb+\title[...]{...}+         & yes\rlap{${}^1$} & yes\rlap{${}^1$} \\
-
-\verb+\author[...]{...}+        & yes\rlap{${}^1$} & yes\rlap{${}^1$} \\
-\verb+\contrib[...]{...}+       & no\rlap{${}^2$} & --- \\
-\verb+\address{...}+            & yes & yes \\
-\verb+\curraddr{...}+           & no  & no \\
-\verb+\email{...}+              & no  & no \\
-\verb+\urladdr{...}+		& no  & no \\
-\verb+\dedicatory{...}+         & no  & no \\
-\verb+\date{...}+               & ---\rlap{${}^3$} & --- \\
-\verb+\thanks{...}+             & no & no \\
-\verb+\translator{...}+         & ---\rlap{${}^3$} & ---\rlap{${}^3$} \\
-\verb+\keywords{...}+           & no & no \\
-\verb+\subjclass[2000]{...}+    & yes & yes \\
-\verb+\begin{abstract}...\end{abstract}+ & yes\rlap{${}^4$} & no \\
-\verb+\maketitle+               & yes & yes \\
-\end{tabular}
-\end{center}
-\vspace*{1pc}
-
-{\Small
-${}^1$ If no short form is needed, omit the brackets.
-
-${}^2$ For contributors, see details on page~\pageref{ss:contrib}.
-
-${}^3$ If this is necessary, it  will be filled in by the AMS staff.
-
-${}^4$ For the \textit{Journal of the  American Mathematical Society},
-abstracts are optional.
-\par
-}
-\end{minipage}
-\vspace{.25\baselineskip}
-\hrule width \textwidth
-\vspace{.5\baselineskip}
-\end{table}
-
-\subsection*{Title}
-%%
-For AMS journal articles, capitalize only the first word and proper
-nouns in the title.  For articles in an AMS proceedings volume,
-capitalize the first and last words of the title and all nouns,
-pronouns, adjectives, adverbs, and verbs.  Articles, conjunctions, and
-prepositions should be lowercased unless they are the first or last
-word of the title.  These rules should be followed even if the
-publication in which the article appears has another style.  The style
-for the particular publication will be generated automatically when
-the article is processed at the AMS.
-
-A multiline title may be left for \latex/ to break, or a desired break
-may be indicated by \cn{\\}.
-
-Unless the title is very short, provide a form of the title suitable
-for use in running heads.  This should be entered in brackets between the
-tag \cn{title} and the full title:
-\verb+\title[+short title\verb+]{+full title\verb+}+.
-Do not use author-defined macros in the title.
-
-\subsection*{Author information}\label{ss:authorinfo}
-%%
-Enter the name(s) of the author(s) with the tag \cn{author}, using
-standard capitalization for proper names.  Use a separate \cn{author}
-command for each author.  Names will be combined by \latex/ according
-to the dictates of the document class.  See also ``contributors'',
-below.
-
-If the author name(s) cannot fit in the space available for the running
-head, enter a shortened form for each name in [brackets]
-between the tag \cn{author} and the full name.  Acceptable shortened
-forms use initials for all but the surname(s).  For example,
-\begin{verbatim}
-\author[J. Smith]{Joseph Smith}
-\end{verbatim}
-If the list of shortened author names is still too long for the running
-head (including a reasonable space for the page number), it can be
-shortened as in the following example, as a last resort:
-\begin{trivlist}
-\item\relax
-\verb+\markleft{J. SMITH ET AL.}+
-\end{trivlist}
-
-\noindent
-Note that \cn{markleft} is available only for \amslatex/ versions 2.20
-and later; it is not a basic \latex/ command.
-Data provided with \cn{markleft\{\}} \emph{must} be in all capital letters
-(except for included math). Place \cn{markleft\{\}} before the first
-\cn{author} in your file.
-
-For each author you should provide one or more addresses.  Tag them
-as follows, grouping them in this order by author:
-\begin{verbatim}
-\address{...}   |rm address where the research was carried out |tt
-\curraddr{...}  |rm current address, if different from the research address |tt
-\email{...}     |rm address for electronic mail |tt
-\urladdr{...}   |rm URL address (optional)
-\end{verbatim}
-Do \emph{not} include any addresses within the scope of an
-\cn{author\{\}} command (this is different from basic \latex/).
-Do not use abbreviations in addresses.
-
-The main address should be divided by \cn{\\} into segments that
-correspond to address lines for use on an envelope.  When typeset, the
-lines will be strung together separated by commas, but the division by
-\cn{\\} will be useful to a person preparing an envelope to return
-proofs.
-
-Addresses are considered part of the top matter, but in AMS articles
-they are ordinarily printed at the end of the article following the
-bibliography (this is different from basic \latex/).  Suitable labels
-will indicate the current, e-mail, and URL addresses, typically
-\textit{Current address}:, \textit{E-mail address}:, \textit{URL}:,
-respectively.
-
-If \texttt{\textasciitilde} is needed in a URL address, enter it
-directly as \texttt{\textasciitilde} if you are using \amslatex/
-version 2.20 or later; otherwise, see the Author FAQ \cite{AF}
-for instructions.
-
-\subsection*{Contributors
-  {\mdseries (new with version 2.20)}}\label{ss:contrib}
-%%
-Contributors are much like authors, but are responsible for only
-a portion of an article, e.g., an appendix or auxiliary tables.
-The bracketed portion is not optional; it gives the exact text that
-will be printed to indicate the nature of the contribution:
-\begin{verbatim}
-\contrib[with an appendix by]{William Rogers}
-\end{verbatim}
-Multiple contributors and contributions are input like this:
-\begin{verbatim}
-\contrib[with Appendix A by]{William Rogers}
-\contrib[]{Henry Taylor}
-\contrib[and Appendix B by]{John Henderson}
-\end{verbatim}
-Note the empty brackets on the second line.  Multiple contributors
-indicated in this way will be combined and ``andified'' appropriately.
-Contributors will not be included in running heads.  Addresses provided
-for contributors will be treated the same as for regular authors.
-
-\subsection*{Dedication}
-%%
-Use the tag \cn{dedicatory} for such things as ``Dedicated to
-Professor X on the occasion of his eightieth birthday.''  If the
-dedication is longer than one line, you may indicate a break with
-\cn{\\}.
-
-\subsection*{Acknowledgments of support and other first-page footnotes}
-%%
-Use the command \cn{thanks} to acknowledge grants and other kinds of
-support or for other general information not covered by one of the
-more specific commands such as \cn{keywords} or \cn{subjclass}.  Enter
-\cn{thanks} immediately following the address(es) for the relevant
-author, \emph{not} within the scope of the \cn{author\{\}} command
-(this is different from basic \latex/).  Like \cn{address}, \cn{thanks}
-can appear more than once in the top matter.  Each occurrence will be
-printed as an unnumbered footnote at the bottom of the first page of
-the article.
-
-\subsection*{Subject information}
-%%
-Subject classifications and key words, like acknowledg-\linebreak ments, are
-part of the top matter and appear as unnumbered footnotes at the bottom of
-the first page.
-
-Subject classifications may be primary (the major topic(s) of the
-paper) or secondary (subject areas covered by ancillary results,
-motivation or origin of problems discussed, intended or potential
-field of application, or other significant aspects worthy of notice).
-At least one primary subject classification is \textbf{required}.
-Additional primaries and secondaries are optional.
-
-\begin{samepage}
-These classifications are entered as
-\begin{verbatim}
-\subjclass[2000]{Primary |?primary class>; Secondary |?secondary classes>}
-\end{verbatim}
-(Omitting \texttt{[2000]} will cause the 1991 Subject Classification
-to be cited.)
-\end{samepage}
-
-To determine the classifications, use the 2000 Mathematics Subject
-Classification scheme that appears in annual indexes of \textit{Mathematical
-Reviews} beginning in 1999.  It can also be accessed on the Web at URL:
-\texttt{http://www.ams.org/msc/} or obtained in printed form from
-Customer Services.
-Please use the full number; the two-digit code from the Contents of
-\textit{Mathematical Reviews} is \textbf{not} sufficient.
-
-Key words are not required but may be provided by an author if desired.
-They should be tagged as \cn{keywords\{...\}}.
-
-\subsection*{Abstract}
-%%
-With an AMS document class, place the abstract before \cn{maketitle},
-contrary to the practice with the basic \latex/ document classes.
-This is necessary to ensure that the abstract can always be printed in
-the proper location and style.  If the abstract is given after
-\cn{maketitle}, it will be printed in place and generate a warning
-message.
-
-Input the abstract text between \verb+\begin{abstract}...\end{abstract}+.
-It may comprise multiple paragraphs and include displayed material if
-appropriate.  The length of the abstract depends primarily on the
-length of the paper itself and on the difficulty of summarizing the
-material.  An upper limit of about 150 words for short papers and 300
-words for long papers is suggested.  Do not use author-defined macros
-or \cn{ref} in the abstract.
-
-
-\section{Document body (all document classes)}
-
-\subsection*{Linking for the Web}
-%%
-All AMS primary journals are posted on-line.  Electronic
-manuscripts prepared in \latex/ for any AMS journal should be tagged
-for maximum linking on the Web. For use of \cn{label}, \cn{ref},
-and \cn{cite}, see \cite{LC}; for \cn{eqref}, see \cite{AMP}.
-
-\subsection*{Headings}
-%%
-Four levels of headings are provided to permit logical sectioning of
-a manuscript.  These headings are applicable to individual articles
-and to chapters of a monograph.  (Headings specific to monographs are
-listed under \textit{Monograph formatting}.)
-
-\begin{verbatim}
-\specialsection{...}
-\section[...]{...}
-\subsection[...]{...}
-\subsubsection[...]{...}
-\end{verbatim}
-
-\cn{specialsection} is for long articles that need extra divisions
-(e.g., parts) at a level above the \cn{section} level.
-
-Explicit line breaks are obtained by \verb+\\+ in first-level section
-headings.
-
-Any heading may be given a label to allow references to be made to it,
-by including a \cn{label\{...\}} command with a unique identifier
-directly \emph{after} the heading.  References are made using the
-command \cn{ref\{...\}} and the same identifier.  For example,
-\begin{verbatim}
-\section{Monograph formatting}
-\label{s:mono}
-\end{verbatim}
-will establish a label for this section that can be referred to with
-\cn{ref\{s:mono\}}. Cross references of
-this sort will require \latex/ to be run at least twice for proper
-resolution.  A warning at the end of the \latex/ run, ``Cross
-references may have changed\dots\unskip'', should be heeded in this regard.
-
-
-\subsection*{Mathematical text}
-%%
-For instructions on preparing mathematical text, refer to
-\cite{AMP} and \cite{ML}.  See also ``Roman type'', below.
-
-\subsection*{Lists}
-%%
-Follow usual \latex/ conventions for producing list environments.
-
-\subsection*{Theorems, lemmas, and other proclamations}
-%%
-See the manual \textit{Using the \pkg{amsthm} package} \cite{ATP}
-for details. Theorem environments following AMS style with respect to
-punctuation, spacing and paragraphing are defined in the AMS document
-classes.  This is incompatible with the \latex/ \pkg{theorem} package,
-which cannot be used with the AMS document classes.
-
-Three different theorem styles are provided by AMS document classes:
-\cls{plain}, \cls{definition}, and \cls{remark}. By referring to these
-styles and using the \cn{newtheorem} command, you can build a
-complement of theorem environments appropriate for any paper or
-monograph.  All \cn{newtheorem} specifications should be included in
-the preamble; a starter set is included in the template for every
-AMS author package.
-
-Theorem support is also available separately in the \pkg{amsthm} package
-for users of document classes other than those from the AMS.
-
-\subsection*{Equations}
-%%
-Check displayed equations carefully, making sure they are broken and
-aligned following the guidelines in \cite[pp. 44--48]{MIT}.
-
-\subsection*{Roman type}\label{ss:roman}
-%%
-Numbers, punctuation, (parentheses), [brackets],
-$\lbrace$braces$\rbrace$, and symbols used as labels should always be
-set in roman type.  This is true even within the statement of a theorem,
-which is ordinarily set in italic type.
-
-Be careful to distinguish between roman elements that are mathematical
-in nature (e.g., ``a group of class 2''), and those that are part of
-the text (e.g., a label or a year).  Mathematical expressions, no matter
-how short or insignificant, should be coded as math, by enclosing them
-within dollar signs \verb+$...$+ or \verb+\(...\)+.  Roman text elements
-should be coded as \cn{textup\{...\}} in potentially nonroman
-environments such as theorems.
-
-Abbreviated forms of mathematical terms are also usually set in roman
-type to distinguish them from mathematical variables or constants.
-Use the control sequences for common mathematical functions and
-operators like \verb+log+ and \verb+lim+; use \cn{DeclareMathOperator}
-to add additional operator names (see \cite[\S5]{AMP}).
-
-The style of reference citations, though publication-dependent, is
-usually roman.  To ensure consistency and support linking for the Web,
-\textbf{always} use the standard \latex/ \cn{cite} command when citing
-a reference.  Internal references with the \cn{ref} command are not
-automatically roman in non-roman environments, but can be forced by
-using the \pkg{upref} package (part of the \amslatex/ collection).
-
-\subsection*{Exercises}
-%%
-Exercises are produced using the \env{xca} and \env{xcb} environments.
-\env{xca} may be used in any publication, but must be defined in
-the document preamble with \cn{theoremstyle\{definition\}} and the
-\cn{newtheorem} command; it is used for exercises that occur within a
-section.  \env{xcb} is defined only for monographs and is used for
-exercises that occur at the end of a chapter.
-
-\subsection*{Indexing facilities}
-\label{ss:indexing}
-%%
-The tags needed for \makeindx/ are already included in AMS document
-classes.  Do not include the \pkg{makeidx} package, but do put the
-command \cn{makeindex} in the preamble to launch a single index.
-See \cite[chapter 11]{LC} and \cite[chapter 11]{GL} for use of
-\makeindx/.
-
-A package for multiple indexes, \pkg{amsmidx}, is included in the
-\amslatex/ collection beginning with version 2.20.  Unlike other
-multiple-index packages, \pkg{amsmidx} is compatible with the AMS
-document classes.  To use this package, put these commands into the
-preamble:
-\begin{verbatim}
-\usepackage{amsmidx}
-\makeindex{|?name of first index file>}
-\makeindex{|?name of second index file>}
-\end{verbatim}
-To identify index entries in the text:
-\begin{verbatim}
-\index{|?name of index file>}{|?index term>}
-\end{verbatim}
-In the backmatter, where the indexes are to appear:
-\begin{verbatim}
-\Printindex{|?name of first index file>}{|?title of first index>}
-\Printindex{|?name of second index file>}{|?title of second index>}
-\end{verbatim}
-Note the capitalization of the \cn{Printindex} command.
-
-\section{Floating objects: Figures and tables}
-
-Figures and tables are usually handled as floating inserts.  Such
-items are often so large that fitting them into the document at the
-point of reference may cause problems with pagination.  Placing such
-items into a floating insert allows them to be repositioned
-automatically by \latex/ as required for good pagination.
-
-A floating insert generally contains one of these possibilities:
-\begin{itemize}
-\item \latex/ code that produces an object such as a table or
-  commutative diagram;
-\item a command to incorporate an item produced by another application
-  (most often an Encapsulated PostScript (EPS) file produced by a
-  graphics utility; see \textit{Electronic graphics},
-  page~\pageref{ss:electronicgraphics}).
-\end{itemize}
-
-If a figure is described by \latex/ code (e.g., using \pkg{xypic} or
-the \env{picture} environment), it should be included directly in the
-file.
-
-\subsection*{Placement}
-%%
-Floats should
-\begin{enumerate}
-\item be numbered consistently throughout the paper (figures and tables
-  are numbered separately),
-\item be placed at the top or bottom of the page,
-\item have an in-text reference, and
-\item definitely appear within the same section as their first text
-  reference.
-\end{enumerate}
-
-A figure or table should not precede its first text reference unless
-they both appear on the same page spread.  When a figure or table is
-an integral part of text, it may appear unnumbered in place in the
-middle of text.
-
-Figures and tables should be allowed to float according to the \latex/
-defaults preset by the document class.  If you are submitting a file
-that will be processed at the AMS (this applies to all journal
-articles), you could introduce major problems with pagination if you
-hard-set your figures and tables by using the \verb+[h!]+ option.
-Production problems will be avoided when you use the appropriate
-author package class file and avoid using figure or table options.
-For electronic manuscripts, the final placement of inserts will be
-determined by the AMS editorial staff, on the basis of the most
-appropriate page layout.
-
-\subsection*{Captions}
-%%
-Captions for floating inserts are usually positioned above a table and
-below a figure. The following is the general structure used to specify
-a figure insert, with a caption at the bottom:
-\begin{verbatim}
-\begin{figure}
-\includegraphics{|?file name of |tt.eps|rm| file>}|quad|rm or|tt|quad|?code for the insertion>
-\caption{|?caption text>}
-\label{|?reference label>}|quad|rm (optional)|tt
-\end{figure}
-\end{verbatim}
-
-This is the general structure for a table insert, with a caption at
-the top:
-\begin{verbatim}
-\begin{table}
-\caption{|?caption text>}
-\label{|?reference label>}|quad|rm (optional)|tt
-|?code for the insertion body>
-\end{table}
-\end{verbatim}
-
-Caption headings (e.g., ``\textsc{Table 3.1.}''\ or
-``\textsc{Figure 7.}'')\ will be supplied automatically.  The
-\<caption text> is any appropriate descriptive text, and may be
-omitted if no descriptive text is desired.  (The style of the caption
-differs from the basic \latex/ caption style.)  A reference label
-should usually be associated with the caption, and must be given
-\emph{after} the caption.  A reference in text to the figure or table
-has the form \cn{ref\{\<reference label>\}}.
-
-\latex/ packages for captions may appear to work with the AMS document
-classes, but the caption style doesn't usually match the AMS style.
-
-\subsection*{Electronic graphics}\label{ss:electronicgraphics}
-%%
-Graphics created by applications other than \latex/ may be submitted
-to the AMS in an electronic format.  This includes output from
-graphics applications as well as scanned photographs or other
-computer-generated images.  The AMS requires such graphics in
-Encapsulated PostScript (EPS) format.
-
-Use the \pkg{graphicx} package (part of the \pkg{graphics} bundle
-of \latex/) to embed references to EPS graphics directly in a \latex/
-file; see the manual, \filnam{grfguide.tex} \cite{GB}.  Another
-valuable reference is the manual ``Using EPS Graphics in \latexe/
-Documents'' \cite{EG}.
-
-Other packages are not recommended, as there are numerous areas of
-incompatibility which may result in the need for manual intervention,
-delaying processing and increasing the cost.
-
-The EPS files will not be physically included in the \latex/ file.
-You must submit a separate file for each graphic along with the \latex/
-document.  No matter what method is used to produce a graphic, it is
-necessary to provide a paper copy to the AMS for verification.  Double
-check to make sure the electronic and paper versions are the same.
-
-\subsection*{Compatibility requirements for graphics}
-There are two important requirements that must be observed when
-embedding graphics.
-
-\emph{Omit path names} for the included files.  Instead of
-\begin{verbatim}
-\includegraphics*{/usr/joe/book/figures/fig1.ps}
-\end{verbatim}
-use just the name of the file:
-\begin{verbatim}
-\includegraphics*{fig1.ps}
-\end{verbatim}
-The easiest way to do this is to place the graphics files in the
-same directory as the file(s) being {\TeX}ed.
-
-Do not use the \cn{graphicspath\{\<directory list>\}} command to
-establish a path.  This will result in the path being included in
-the DVI file, which will be impossible to process at the AMS\@.
-It may be possible to specify a path using one of the environments
-recognized by the {\TeX} engine (\fn{TEXINPUTS}, for example);
-instructions for setting these environments should be in the
-documentation for your system.
-
-Graphics commands must be compatible with the \textit{dvips} output
-driver.  This is particularly important if you are submitting a DVI
-file for a camera-ready publication.  The method is specific to the
-graphics package you are using; a typical method is to use a file
-\filnam{graphics.cfg} containing the line \cn{ExecuteOptions\{dvips\}}
-when you run \latex/ to create the DVI or PostScript file to send to
-the AMS.
-
-\subsection*{Technical requirements for graphics}
-%%
-If you scale a figure before submitting it, remember that line weights
-also scale.  The lightest line weight that will reproduce clearly at
-high resolution is 0.5pt after scaling.  Do \emph{not} specify
-``hairline'' weight, as this will be nearly invisible at high
-resolution and will disappear in the printing process. If a rule line
-is screened, its weight should be no less than 1 point \emph{after}
-scaling.
-
-Graded line weights should increase in increments of at least 0.5pt.
-Increments less than this are insufficiently distinguishable at high
-resolution.
-
-Screened fills should be screened not less than 15\% (less will print
-as white) and not greater than 85\% (greater will print as black).
-
-Ideally, text included in graphics files should be font outlines
-rather than bitmaps, because the AMS typesets its publications on a
-high-resolution imagesetter, not a laser printer.  Text or lines in
-graphics which are 300dpi bitmaps (which look fine in the
-laser-printed output of your article) may appear poor in quality next
-to the high-resolution text of AMS publications.  If bitmaps of
-characters are part of bitmapped line art files, output will be
-satisfactory if the bitmapped characters are at 1200dpi.
-
-\subsection*{Color graphics}
-%%
-AMS publications are ordinarily printed in black and white.
-Use of color requires explicit permission from the AMS.
-
-Color figures should have the resolution of at least 266 pixels per
-inch when printed at 100\%, and must also be suitable for printing
-as grayscale.  The files must be in EPS format
-
-
-\section{Bibliographic references}
-%%
-\subsection*{Using \protect\bibtex/ to prepare a bibliography}%
-An author may find it convenient to maintain a file of references in
-\bibtex/ form, as described in \textit{The \latex/ Companion}
-\cite[Section 13.2]{LC}. Two \bibtex/ styles are provided:
-
-\begingroup
-\exindent=2\parindent
-\beginexample{\exboxwidth=1.05in}
-\exbox{}{amsplain.bst} will produce numeric labels; preferred for articles;
-\exbox{}{amsalpha.bst} will produce labels constructed from the %
-  author name(s)\newline and year of publication.
-\endexample
-\endgroup
-
-\noindent
-Both will translate references in a \bibtex/ input (\filnam{.bib})
-file to \latex/ input in a \filnam{.bbl} file in the form appropriate
-for AMS publications, including all necessary formatting instructions.
-This method of preparing bibliographies is therefore recommended.
-
-To access a \bibtex/ bibliography in a paper or monograph, include these
-instructions in the appropriate place in the input file:
-\begin{verbatim}
-\bibliographystyle{|?style>}|qquad|rm(|tt|0amsplain  |rm or|tt  amsalpha|rm)|tt
-\bibliography{|?name of bibliography |bgroup|tt.bib|egroup| file>}
-\end{verbatim}
-
-Running \bibtex/ on the \filnam{.bib} file will produce a \filnam{.bbl}
-file.  The \filnam{.bib} file may have any name the author finds convenient;
-however, the \filnam{.bbl} file must have the same name as the source file
-for a monograph from which it is input, so it may be necessary for the
-author to rename it.  For an article, after the bibliography has been
-completed (including processing by \bibtex/), the contents of the
-\filnam{.bbl} file should be inserted into the main article input file,
-replacing the \cn{bibliographystyle} and \cn{bibliography} statements.
-
-Items in the bibliography are usually ordered alphabetically by author.
-\bibtex/ processing may alter this order, especially if the
-\filnam{amsalpha} style is used.
-
-All categories of bibliographic entries listed in
-\cite[Table 13.1]{LC} are supported in the two AMS \bibtex/ styles.
-In addition to the fields listed in Table 13.1, a \verb+language+
-field is provided for use in identifying the original language of an
-item whose title has been translated.
-
-The \pkg{harvard} package (available from CTAN) provides an
-author-year style that is compatible with the AMS document classes.
-This should ordinarily be used only for monographs on historical
-topics.
-
-Standard abbreviations for periodicals should be obtained from
-\cite{ASMR}\@.
-
-\subsection*{Preparing a bibliography without \protect\bibtex/}
-%%
-The references section of a paper is contained between the commands
-\begin{verbatim}
-\begin{thebibliography}{|?model label>}
-\end{thebibliography}
-\end{verbatim}
-This environment is resolved as an unnumbered section in an article
-or an unnumbered chapter in a monograph, following AMS publication
-specifications.  The indentation for the labels is set to an
-appropriate width using the model given with the \cn{begin} command.
-Thus the widest label in the bibliography should be used as the model;
-for example, \verb+99+ will provide space for a 2-digit numeric label.
-
-For the proper order of reference elements and use of fonts and
-punctuation, look at an issue or volume in the journal or book series
-for which your document is intended and follow the examples you see
-there.  More examples are given in \cite{MIT}.
-
-\subsubsection*{Reference input}
-%%
-Begin each item with the command \cn{bibitem\{\<bibitem label>\}}.
-The \latex/ default is to number references automatically; however,
-other labels may be used by inserting an optional key argument in
-square brackets between the command and the internal label:
-\begin{verbatim}
-\bibitem[ABC]{Arno1994}
-\end{verbatim}
-The item label and the key need not be identical.  Whatever appears
-within the \verb+[ ]+ is what prints; whatever is within the curly
-braces is used for linking and must not include any math or special
-characters.
-
-Give at least one full name; initials and last name is an acceptable
-form.  If a subsequent reference is by the same author(s), use
-\cn{bysame} instead of the name(s).
-
-For examples, refer to \cite{MIT}.
-
-
-\section{Monograph formatting}\label{s:mono}
-
-A monograph is a long work by a single author or co-authors on a
-single subject.  Each chapter should be prepared as a separate file,
-as should the bibliography.  In addition, a ``driver'' file should be
-used to input all the others.  These files should be given meaningful
-names, so that when they are transmitted to the AMS, there will be no
-question about which file represents which chapter.  For example, a
-monograph by author Grey might be composed of files named
-\filnam{grey.tex} (the driver file), \filnam{grey-ch1.tex},
-\filnam{grey-ch2.tex}, \dots, \filnam{grey-ch12.tex},
-\filnam{grey-appa.tex}, etc., and \filnam{grey-bib.tex}.
-If the author name is a common one, please include something to make
-it unique, such as first initials.
-
-Information that identifies the author(s), the subject matter of the
-monograph, acknowledgments of support, and so forth, will appear in the
-front matter of the book.  Place this information in the driver file,
-and use the tags shown below.  Most of these are the same as the tags
-associated with the top matter of an article; see the \textit{Top
-matter} section (page~\pageref{s:topmatter}) for explanations and an
-indication of which tags are required.
-
-\subsection*{Starting a new monograph}\label{s:newamsbook}
-%%
-The driver file for a monograph is generally made up of the following:
-\begin{itemize}
-\item \verb+\documentclass{...}+
-\item preamble (where extra definitions might go)
-\item \verb+\begin{document}+
-\item \verb+\frontmatter+
-\item title page and copyright page information
-\item \verb+\maketitle+ (to set the title page and copyright page; see note)
-\item \verb+\include+ files (e.g., preface, introduction)
-\item \verb+\mainmatter+
-\item \verb+\include+ files (e.g., main chapters, appendices)
-\item \verb+\backmatter+
-\item commands for bibliography, index
-\item \verb+\end{document}+
-\end{itemize}
-
-\noindent
-Note: The title and copyright pages are for information only, so that
-a printed copy can be associated with the correct author(s).  The final
-copy will be prepared at the AMS.
-
-For a typical driver file, see the template for \cls{amsbook}, included
-in the \amslatex/ collection.
-
-Instructions for preparing a dedication page are given in the AMS
-Author FAQ \cite{AF}.
-
-The table of contents will be produced automatically from a
-\filnam{.toc} file produced anew in each run of \latex/. Since there is
-no \filnam{.toc} before the first run, the body of the table of contents
-will be empty on the first run. It is AMS style to include only
-first-level heads, chapter titles, and part titles in the table of
-contents.
-
-Chapters in AMS book series start on right-hand (odd-numbered) pages.
-Blank pages will be provided as necessary at the end of earlier material
-to accomplish this.
-
-
-\subsection*{Chapter titles}
-%%
-Chapter titles should be capitalized as follows: the first and last
-words of the title and all nouns, pronouns, adjectives, adverbs, and
-verbs should be capitalized.  Articles, conjunctions, and prepositions
-should be lowercased unless they are the first or last word of the title.
-
-There are three common variations of the chapter title.  The form with
-a chapter number is most common:
-\begin{verbatim}
-\chapter{Matrix Algebras}
-\end{verbatim}
-
-The second variation is an appendix, where the word ``Appendix''
-replaces the word ``Chapter''. Use the command \cn{appendix} before
-the first \cn{chapter} command in a sequence of appendix chapters.
-\begin{verbatim}
-\appendix
-\chapter{Poisson Integral}
-\end{verbatim}
-In addition to ``Appendix'', the counter will produce letters ``A'',
-``B'', ``C'', etc.,\ instead of numbers.
-
-The third variation is used for an element such as a preface or
-introduction, which has no pretitle text at all.  For this, use the
-\cn{chapter*} command:
-\begin{verbatim}
-\chapter*{Preface}
-\end{verbatim}
-Unlike the \latex/ \cls{book} class, the AMS document classes will
-place entries for unnumbered chapters in the table of contents, as
-required by AMS style.
-
-\subsection*{Monograph running heads}
-%%
-The chapter title is used for the left running head and section
-headings for the right running head.  The chapter title repeats if
-there are no sections.  If the text of a section heading is too long
-to fit as a running head, use the square-bracket option to specify a
-shortened form for use in the running heads:
-
-\begin{verbatim}
-\section[Fourier coefficients of periodic functions]
-   {Fourier coefficients of continuous periodic functions
-   of bounded entropy norm}
-\end{verbatim}
-
-If the chapter title is too long to fit as a running head, a shortened
-form can be supplied in a similar way.  Full chapter titles and section
-headings will be used in the table of contents (this is different from
-basic \latex/).
-
-\subsection*{Numbering of figures and tables}
-%%
-The preferred AMS style for numbering figures and tables is to start
-numbering from 1 within each chapter, and to include both the chapter
-and element number in the printed caption heading.  For example, the
-first figure in Chapter 5 would be numbered ``\textsc{Figure} 5.1''.
-The \cls{amsbook} document class resets figure and table numbers
-automatically, but does not include the chapter number in the printed
-caption.  To add the chapter number, place these lines in the preamble
-of the driver file:
-\begin{verbatim}
-\numberwithin{figure}{chapter}
-\numberwithin{table}{chapter}
-\end{verbatim}
-
-
-\section{Getting help}
-
-Many questions raised by authors are answered in the AMS Author FAQ
-\cite{AF}.  Please check that before asking for assistance.
-
-If you encounter difficulties in preparing or submitting your
-manuscript in electronic form after it has been accepted for
-publication by the appropriate editorial board, you can ask for help
-from the \AMS\ at:
-
-\penalty-100
-\begin{samepage}
-\beginexample{\normalfont\mdseries}
-Technical Support
-Publications Technical Group
-201 Charles Street
-Providence, RI  02904-2294
-\vspace{3pt}
-Phone: 800-321-4267, ext.\ 4080 \quad or \quad 401-455-4080
-E-mail: {\texttt{tech-support@ams.org}}
-\endexample
-\end{samepage}
-
-\noindent
-Please supply the name of the journal or book series, the editor's
-name if the manuscript is for a proceedings volume, and a concise
-explanation of the problem.
-
-
-\begin{thebibliography}{[ASMR]}
-
-\bibitem[AF]{AF} AMS Author FAQ,
-\texttt{http://www.ams.org/authors/author-faq.html}
-
-\bibitem[AFG]{AFG} \textit{AMSFonts{} version~\textup{2.2d} user's guide},
-Amer. Math. Soc.,  Providence, RI, 2002.
-PDF file linked from \texttt{http://www.ams.org/tex/amsfonts.html}
-
-\bibitem[AMP]{AMP} \textit{User's guide for the \pkg{amsmath} package
-\textup{(}version~\textup{2.0)}}, Amer. Math. Soc., Providence, RI, 2004.
-PDF file linked from \texttt{http://www.ams.org/tex/amslatex.html}
-
-\bibitem[AP]{AP} Author packages for publishing with the AMS,\\
-\texttt{http://www.ams.org/tex/author-info.html}
-
-\bibitem[ARC]{ARC} AMS Author Resource Center,
-\texttt{http://www.ams.org/authors/}
-
-\bibitem[ASMR]{ASMR} \textit{Abbreviations of names of serials reviewed in
-Mathematical Reviews}, Amer. Math. Soc., Providence, RI,
-revised annually; searchable on-line at\\
-\texttt{http://www.ams.org/msnhtml/serials-list/annser\_frames.html}.
-
-\bibitem[ATP]{ATP} \textit{Using the \pkg{amsthm} package,
-version~\textup{2.0}}, Amer. Math. Soc., Providence, RI, 2004.\\
-PDF file linked from \texttt{http://www.ams.org/tex/amslatex.html}
-
-\bibitem[EG]{EG} Keith Reckdahl, ``Using EPS graphics in \latexe/
-documents'', available in electronic form as \texttt{info/epslatex.ps}
-or \filnam{.pdf} from\newline
-\texttt{http://www.ctan.org/tex-archive/}
-
-\bibitem[EP]{EP} Guide to AMS editor's package,
-\texttt{http://www.ams.org/authors/editpkg.html}
-
-\bibitem[GB]{GB} David Carlisle, ``Packages in the `graphics' bundle'',
-available in electronic form as
-\filnam{macros/latex/required/graphics/grfguide.tex} or \filnam{.ps}
-from\\ \texttt{http://www.ctan.org/tex-archive/}
-
-\bibitem[GL]{GL} Helmut Kopka and Patrick Daly, \textit{A Guide to
- \latex/}, 4th ed., Addison-Wesley, Reading, MA, 2004.
-
-\bibitem[HBW]{HBW} Nicholas J. Higham, \textit{Handbook of Writing for
-the Mathematical Sciences}, 2nd ed., SIAM, Philadelphia, PA, 1998.
-
-\bibitem[HWM]{HWM}
-Norman E. Steenrod, Paul R. Halmos, Menahem M. Schiffer, and Jean A.
-Dieudonn\'e, \textit{How to Write Mathematics}, 5th printing 1995,
-Amer. Math. Soc., Providence, RI, 1973.
-
-\bibitem[Joy]{Joy} M. D. Spivak, \textit{The Joy of \tex/},
-2nd revised ed., Amer. Math. Soc., Providence, RI, 1990.
-
-\bibitem[LC]{LC} Frank Mittelbach and Michel Goossens, with
-Johannes Braams, David Carlisle and Chris Rowley,
-\textit{The \latex/ Companion}, 2nd ed., Addison-Wesley Co.,
-Reading, MA, 2004.
-
-\bibitem[LGC]{LGC} Michel Goossens, Sebastian Rahtz, and Frank Mittelbach,
-\textit{The \latex/ graphics Companion}, Addison-Wesley Co., Reading,
-MA, 1997.
-
-\bibitem[MIT]{MIT} Ellen E. Swanson, updated by Arlene O'Sean and
-Antoinette Schleyer, \textit{Mathematics into Type},
-Updated ed., Amer. Math. Soc., Providence, RI, 1999.
-
-\bibitem[ML]{ML} George Gr\"{a}tzer, \textit{Math into \latex/},
-3rd ed., Birkh\"{a}user, Boston, MA/Springer Verlag, NY, 2000.
-
-\bibitem[MSC]{MSC} \textit{\textup{2000} Mathematics subject classification},
-Amer. Math. Soc., Providence, RI, 1999; searchable on-line at
-\texttt{http://www.ams.org/msc/}.
-
-\end{thebibliography}
-
-\end{document}
diff --git a/Master/texmf-dist/doc/latex/amslatex/manifest.txt b/Master/texmf-dist/doc/latex/amslatex/manifest.txt
deleted file mode 100644
index ffeebfacf43..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/manifest.txt
+++ /dev/null
@@ -1,56 +0,0 @@
-
-texmf/bibtex/bst/ams/
-  amsra.bst
-  amsrn.bst
-  amsrs.bst
-  amsru.bst
-  amsry.bst
-
-texmf/doc/latex/amscls/
-  amsrdoc.pdf
-  amsrefs.faq
-  amsrefs.pdf
-  changes.pdf
-  cite-xa.tex
-  cite-xb.tex
-  cite-xh.tex
-  cite-xs.tex
-  gktest.ltb
-  jr.bib
-  mathscinet.pdf
-  textcmds.pdf
-
-texmf/source/latex/amsrefs/
-  00readme.txt
-  ams-r1.ins
-  amsrdoc.pdf
-  amsrefs.dtx
-  amsrefs.faq
-  amsrefs.pdf
-  amsxport.dtx
-  changes.pdf
-  cite-xa.tex
-  cite-xb.tex
-  cite-xh.tex
-  cite-xs.tex
-  gktest.ltb
-  ifoption.dtx
-  install.txt
-  jr.bib
-  manifest.txt
-  mathscinet.dtx
-  mathscinet.pdf
-  pcatcode.dtx
-  rkeyval.dtx
-  textcmds.dtx
-  textcmds.pdf
-
-texmf/tex/latex/amscls/
-  amsrbeta.sty
-  amsrefs.sty
-  ifoption.sty
-  mathscinet.sty
-  pcatcode.sty
-  rkeyval.sty
-  rkvbeta.sty
-  textcmds.sty
diff --git a/Master/texmf-dist/doc/latex/amslatex/math/00readme.txt b/Master/texmf-dist/doc/latex/amslatex/math/00readme.txt
deleted file mode 100644
index 080ed622537..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/math/00readme.txt
+++ /dev/null
@@ -1,123 +0,0 @@
-00readme.txt for amsmath 2.0 [2004/08/06] American Mathematical Society
-
-See manifest.txt for a list of all the files in the distribution.
-
-See install.txt for installation instructions. [Installing from an
-archive file such as ftp://ftp.ams.org/pub/tex/amsmath.zip is
-recommended.]
-
-The amsmath package is an extension package for LaTeX that provides
-additional features to facilitate mathematical typesetting. It has been
-developed by the American Mathematical Society and released for general
-use as a service to the mathematical community. A number of smaller
-auxiliary packages are also distributed with the amsmath package.
-
-In order to use amsmath you need to have TeX installed first. TeX is not
-an AMS product. For information on getting TeX see one of the following:
-
-  http://www.tug.org/
-  http://www.ams.org/tex/tex-resources.html
-
-The primary documentation for amsmath is in
-
-  amsldoc.pdf
-
-Additional documentation files include:
-
-  diffs-m.txt
-  subeqn.pdf
-  technote.pdf
-  testmath.pdf
-
-which are included in the collection.  Additional documentation can be
-found in the amsmath FAQ:
-
-  http://www.ams.org/tex/amsmath-faq.html
-
-For technical support:
-
-  American Mathematical Society
-  Technical Support
-  Publications Technical Group
-  P. O. Box 6248
-  Providence, RI 02940-6248
-  Phone: 800-321-4AMS (321-4267) (USA/Canada) or 401-455-4080
-  tech-support@ams.org
-
-For submitting bug reports, however, users are encouraged to use the
-standard LaTeX bug reporting system: Issue the command
-
-  latex latexbug.tex
-
-and follow the resulting instructions (selecting the "amslatex" category
-when the list of possible categories is shown).
-
-========================================================================
-RECENT CHANGES (REVERSE ORDER)
-
----amsmath.faq - 2004/08/06
-Removed from distribution; replaced by on-line FAQ at
-http://www.ams.org/tex/amsmath-faq.html
-
----amsmath.dtx 2.13 2000/07/18:
-
-After the numbering patches in 2.11, \notag failed in certain
-circumstances: introduce some more auxiliary functions to sort things
-out, and redefine \nonumber.
-
----amstext.dtx 2.01 2000/06/29:
-
-Use \f@size instead of \tf@size because they are not necessarily the
-same and the former is better for putting a few words into a display.
-
----amsmath.dtx 2.12 2000/06/06:
-
-Fix transposed lines in 2.11 patch.
-
----amsdtx.dtx - 2000/06/02:
-
-Move to the amscls distribution.
-
----amsmath.dtx 2.11 2000/06/02:
-
-Prevent "Arithmetic overflow" error by guarding against divide-by-zero
-in \x@calc@shift@lc (align environment).
-
----amsmath.dtx 2.10 2000/05/25:
-
-Clear up error message for \allowdisplaybreaks[0].
-
-Make mathdisplay re-entrant by introducing mathdisplay@stack, to
-clear up numbering problems in unusual circumstances such as \[ \]
-nested inside minipage inside equation.
-
----amsmath.dtx 2.09 2000/04/21:
-
-Ensure good catcodes for " etc.
-
----amsmath.dtx 2.08 2000/03/16:
-
-Fixed erroneous tag placement on split with fleqn/tbtags options.
-
----amsmath.dtx 2.07 2000/03/15:
-
-Add \reset@strutbox@ to deal with the following bug: After
-$...\mbox{\Huge $...$}...$, line spacing is wrong in a following
-"gather" or other environment that uses \strut@.
-
-Patch to fix bug with intlimits option: too much space in the middle of
-\iint.
-
-Overhaul math accents again to fix a couple of bugs reported by Thimm.
-
----amsmath.dtx 2.06 2000/03/10:
-
-Change \MathAccent to \mathaccentV so \DeclareMathAccent won't give an
-error when redefining an accent.
-
----amsmath.dtx 2.05 2000/01/06:
-
-Fixed incorrect placement of fleqn/reqno equation numbers inside
-indented lists (displaywidth < columnwidth). Changed the
-multline/fleqn/leqno indent to match mathmargin when possible instead of
-always just using multlinetaggap.
diff --git a/Master/texmf-dist/doc/latex/amslatex/math/amsdtx.cls b/Master/texmf-dist/doc/latex/amslatex/math/amsdtx.cls
deleted file mode 100644
index 96a50814c8f..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/math/amsdtx.cls
+++ /dev/null
@@ -1,517 +0,0 @@
-%%
-%% This is file `amsdtx.cls',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsdtx.dtx  (with options: `amsdtx')
-%% 
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsdtx.dtx",
-%%%   version   = "2.06",
-%%%   date      = "2004/08/06",
-%%%   time      = "12:18:49 EDT",
-%%%   checksum  = "19929 1192 3506 39423",
-%%%   author    = "Michael J. Downes, updated by David M. Jones",
-%%%   copyright = "Copyright 1996, 1999, 2004
-%%%                American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Publications Technical Group,
-%%%                201 Charles Street,
-%%%                Providence, RI 02904,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, amslatex, ams-latex, user documentation",
-%%%   supported = "yes",
-%%%   abstract  = "This is the source for two document classes, amsdtx
-%%%                and amsldoc, used to produce AMS user documentation
-%%%                or technical documentation.",
-%%%   docstring = "The checksum field above contains a CRC-16
-%%%                checksum as the first value, followed by the
-%%%                equivalent of the standard UNIX wc (word
-%%%                count) utility output of lines, words, and
-%%%                characters.  This is produced by Robert
-%%%                Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1995/06/01]% LaTeX date must be June 1995 or later
-\ProvidesClass{amsdtx}[2004/08/06 v2.06]
-\DeclareOption*{\PassOptionsToClass{\CurrentOption}{book}}
-\ProcessOptions
-\LoadClass{book}
-\IfFileExists{url.sty}{%
-    \RequirePackage{url}\relax
-    \@gobble
-}{%
-    \@firstofone
-}
-{
-    \DeclareRobustCommand{\url}[1]{%
-        \def\@tempa{#1}%
-        \texttt{\urlsetup $\expandafter\strip@prefix\meaning\@tempa$}%
-    }%
-    \def\urlsetup{%
-        \check@mathfonts \textfont\@ne\the\font \textfont\z@\the\font
-        \urlfix +\urlfix\=\urlfix\:\urlfix\-\urlfix\.\urlfix\,\urlfix\;%
-        \urlbreak\&\urlbreak\/\urlbreak\?%
-    }%
-    \def\urlbreak#1{%
-        \mathcode`#1="8000
-        \begingroup \lccode`\~=`#1 \lowercase{\endgroup \edef~}%
-        {\mathchar\number`#1\penalty\hyphenpenalty}%
-    }%
-    \def\urlfix#1{%
-        \mathcode`#1=`#1\relax
-    }%
-}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\providecommand{\qq}[1]{\textquotedblleft#1\/\textquotedblright}
-\providecommand{\mdash}{\textemdash\penalty\exhyphenpenalty}
-\providecommand{\ndash}{\textendash\penalty\exhyphenpenalty}
-\let\@xp\expandafter
-\newcommand*{\autoindex}[1]{%
-    \index{#1\ifcodeline@index\encapchar usage\fi}%
-}
-\newcommand{\ntt}{\normalfont\ttfamily}
-\newcommand*{\indexcs}[1]{%
-    \@xp\@xp\@xp\@indexcs\@xp\@nobslash\string#1\@nil
-}
-\def\@indexcs#1\@nil{%
-    \autoindex{#1\actualchar
-        \string\verb\quotechar*\verbatimchar
-            \@xp\@bothoftwo\string\ #1\@empty
-        \verbatimchar
-    }%
-}
-\def\@bothoftwo#1#2{#1#2}
-\def\category@index#1#2{%
-    {\ntt#2}%
-    \@category@index{#1}{#2}%
-}
-\def\@category@index#1#2{%
-    \autoindex{%
-        #2\actualchar\string\texttt{#2}%
-        \ifx\@nil#1\@nil\else\space#1\fi
-    }%
-}
-\chardef\bslchar=`\\ % p. 424, TeXbook
-\newcommand{\addbslash}{\expandafter\@addbslash\string}
-\def\@addbslash#1{\bslchar\@nobslash#1}
-\newcommand{\nobslash}{\expandafter\@nobslash\string}
-\def\@nobslash#1{\ifnum`#1=\bslchar\else#1\fi}
-\def\@boxorbreak{%
-    \leavevmode
-    \ifmmode\hbox\else\ifdim\lastskip=\z@\penalty9999 \fi\fi
-}
-\DeclareRobustCommand{\cs}[1]{%
-    \@boxorbreak{%
-        \ntt
-        \addbslash#1\@empty
-        \@xp\@xp\@xp\@indexcs\@xp\@nobslash\string#1\@nil
-    }%
-}
-\let\cn\cs
-\DeclareRobustCommand{\cls}{\category@index{class}}
-\DeclareRobustCommand{\pkg}{\category@index{package}}
-\DeclareRobustCommand{\opt}{\category@index{option}}
-\DeclareRobustCommand{\env}[1]{{\ntt#1}\SpecialEnvIndex{#1}}
-\DeclareRobustCommand{\fn}{\category@index{}}
-\DeclareRobustCommand{\bst}{\category@index{\string\BibTeX{} style}}
-\DeclareRobustCommand{\cnt}{\category@index{counter}}
-\DeclareRobustCommand{\fnt}{\category@index{font}}
-\def\allowtthyphens{\begingroup
-  \fontencoding{OT1}\fontfamily{cmtt}%
-  \expandafter\let\csname OT1+cmtt\endcsname\relax
-  \try@load@fontshape
-  \endgroup
-  \expandafter\let\csname OT1+cmtt\endcsname\@empty
-}
-\hfuzz2pc
-\vbadness9999 \hbadness5000
-\def\AmS{{\protect\usefont{OMS}{cmsy}{m}{n}%
-  A\kern-.1667em\lower.5ex\hbox{M}\kern-.125emS}}
-\def\latex/{{\protect\LaTeX}}
-\def\amslatex/{{\protect\AmS-\protect\LaTeX}}
-\def\tex/{{\protect\TeX}}
-\def\amstex/{{\protect\AmS-\protect\TeX}}
-\def\bibtex/{{Bib\protect\TeX}}
-\def\makeindx/{MakeIndex}
-\def\xypic/{XY\mbox{-}pic}
-\newcommand{\Textures}{\textit{Textures}}
-\def\<#1>{\textit{$\langle$#1\/$\rangle$}}
-\def\@listi{%
-  \leftmargin\leftmargini
-  \topsep 3\p@ \@plus2\p@ \@minus\p@
-  \parsep \p@ \@plus\p@ \itemsep\parsep
-}
-\let\@listI\@listi
-\@listi
-\def\@listii{%
-  \leftmargin\leftmarginii
-  \labelwidth\leftmarginii \advance\labelwidth-\labelsep
-  \topsep\p@\@plus\p@ \@minus\p@
-  \parsep\z@skip \itemsep\z@skip
-}
-\def\@listiii{%
-  \leftmargin\leftmarginiii
-  \labelwidth\leftmarginiii \advance\labelwidth-\labelsep
-  \topsep\z@skip \parsep\z@skip \itemsep\z@skip
-}
-\newenvironment{histnote}{%
-  \trivlist\item[\hspace{\labelsep}\bfseries Historical Note:]%
-}{%
-  \endtrivlist
-}
-\def\@starttoc#1{\begingroup
-  \let\autoindex\@gobble
-  \makeatletter
-  \@input{\jobname.#1}\if@filesw
-  \expandafter\newwrite\csname tf@#1\endcsname
-             \immediate\openout
-                 \csname tf@#1\endcsname \jobname.#1\relax
-  \fi \global\@nobreakfalse \endgroup}
-\newcommand*{\secref}[1]{\S\ref{#1}}
-\newcommand{\qc}[1]{}% check for prior definition
-\edef\qc#1{\noexpand\protect\expandafter\noexpand\csname qc \endcsname
-  \noexpand\protect#1}
-\@namedef{qc }#1#2{\begingroup\ntt
-  \ifx\ #2\char`\ \else\escapechar\m@ne\string#2\fi\endgroup}
-\DeclareRobustCommand{\qcat}{\qc\@}%
-\DeclareRobustCommand{\qcamp}{\qc\&}%
-\DeclareRobustCommand{\qcbang}{\qc\!}%
-\DeclareRobustCommand{\arg}[1]{{\ntt\##1}}
-\def\ncn#1{{\let\index\@gobble\cn{#1}}}
-
-\DeclareRobustCommand{\cnbang}{%
-  \ncn{\!}\index{"!@{\ntt\bslchar\qcbang}}}
-\DeclareRobustCommand{\cnat}{%
-  \ncn{\!}\index{"@@{\ntt\bslchar\qcat}}}
-\def\5{\penalty500 }
-\newcommand{\errexa}{\par\noindent\textit{Example}:\ }
-\newcommand{\errexpl}{\par\noindent\textit{Explanation}:\ }
-\renewcommand\chapter{\par \@afterindentfalse
-                    \secdef\@chapter\@schapter}
-\def\@chapter[#1]#2{\ifnum \c@secnumdepth >\m@ne
-                       \if@mainmatter
-                         \refstepcounter{chapter}%
-                         \typeout{\@chapapp\space\thechapter.}%
-                         \addcontentsline{toc}{chapter}%
-                                   {\protect\numberline{\thechapter}#1}%
-                       \else
-                         \addcontentsline{toc}{chapter}{#1}\fi
-                    \else
-                      \addcontentsline{toc}{chapter}{#1}
-                    \fi
-                    \chaptermark{#1}%
-                    \addtocontents{lof}{\protect\addvspace{10\p@}}%
-                    \addtocontents{lot}{\protect\addvspace{10\p@}}%
-                    \if@twocolumn
-                      \@topnewpage[\@makechapterhead{#2}]%
-                    \else
-                      \@makechapterhead{#2}%
-                      \@afterheading
-                    \fi}
-\def\@makechapterhead#1{%
-  \vspace{1.5\baselineskip}%
-  {\parindent \z@ \raggedright \reset@font
-    \ifnum \c@secnumdepth >\m@ne
-      \large\bfseries \@chapapp\space\thechapter
-      \par\nobreak
-      \vskip.5\baselineskip\relax
-    \fi
-    #1\par\nobreak
-    \vskip\baselineskip
-  }}
-\def\@schapter#1{\if@twocolumn
-                   \@topnewpage[\@makeschapterhead{#1}]%
-                 \else
-                   \@makeschapterhead{#1}%
-                   \@afterheading
-                 \fi}
-\def\@makeschapterhead#1{%
-  \vspace*{1.5\baselineskip}%
-  {\parindent \z@ \raggedright
-    \reset@font
-    \large \bfseries  #1\par\nobreak
-    \vskip\baselineskip
-  }}
-\def\@removefromreset#1#2{\let\@tempb\@elt
-   \expandafter\let\expandafter\@tempa\csname c@#1\endcsname
-   \def\@elt##1{\expandafter\ifx\csname c@##1\endcsname\@tempa\else
-         \noexpand\@elt{##1}\fi}%
-   \expandafter\edef\csname cl@#2\endcsname{\csname cl@#2\endcsname}%
-   \let\@elt\@tempb}
-\@removefromreset{footnote}{chapter}
-\def\ps@headings{%
-  \let\@oddfoot\@empty\let\@evenfoot\@empty
-  \def\@evenhead{\thepage\hfil{\footnotesize\leftmark{}{}}}%
-  \def\@oddhead{{\footnotesize\rightmark{}{}}\hfil\thepage}%
-  \let\@mkboth\markboth
-  \def\chaptermark##1{%
-    \markboth {\uppercase{\ifnum \c@secnumdepth >\m@ne
-      \if@mainmatter
-        \@chapapp\ \thechapter. \ \fi
-      \fi
-        ##1}}{}}%
-  \def\sectionmark##1{%
-    \markright {\uppercase{\ifnum \c@secnumdepth >\z@
-        \thesection. \ \fi
-        ##1}}}}
-\renewcommand\maketitle{\par
-  \begingroup
-    \renewcommand\thefootnote{\fnsymbol{footnote}}%
-    \def\@makefnmark{\hbox to\z@{$\m@th^{\@thefnmark}$\hss}}%
-    \long\def\@makefntext##1{\parindent 1em\noindent
-            \hbox to1.8em{\hss$\m@th^{\@thefnmark}$}##1}%
-    \if@twocolumn
-      \ifnum \col@number=\@ne
-        \@maketitle
-      \else
-        \twocolumn[\@maketitle]%
-      \fi
-    \else
-      \newpage
-      \global\@topnum\z@   % Prevents figures from going at top of page.
-      \@maketitle
-    \fi
-    \thispagestyle{plain}\@thanks
-  \endgroup
-  \setcounter{footnote}{0}%
-  \let\thanks\relax
-  \let\maketitle\relax\let\@maketitle\relax
-  \gdef\@thanks{}\gdef\@author{}\gdef\@title{}}
-\def\@maketitle{%
-  \newpage
-  \null
-  \vskip 2em%
-  \begin{center}%
-    {\LARGE \@title \par}%
-    \vskip 1.5em%
-    {\large
-      \lineskip .5em%
-      \begin{tabular}[t]{c}%
-        \@author
-      \end{tabular}\par}%
-    \vskip 1em%
-    {\large \@date}%
-  \end{center}%
-  \par
-  \uppercase\expandafter{\expandafter\toks@\expandafter{\@title}}%
-  \edef\@tempa{\noexpand\markboth{\the\toks@}{\the\toks@}}%
-  \@tempa
-  \vskip 1.5em}
-\renewcommand\tableofcontents{%
-    \if@twocolumn
-      \@restonecoltrue\onecolumn
-    \else
-      \@restonecolfalse
-    \fi
-    \subsection*{\contentsname}%
-    \@starttoc{toc}%
-    \if@restonecol\twocolumn\fi
-    }
-\renewcommand\section{\@startsection {section}{1}{\z@}%
-                                   {-.6\baselineskip \@plus -3\p@}%
-                                   {.4\baselineskip}
-                          {\reset@font\Large\bfseries}}
-\renewcommand\subsection{\@startsection{subsection}{2}{\z@}%
-                                     {-.3\baselineskip\@plus -2\p@}%
-                                     {.2\baselineskip}%
-                          {\reset@font\large\bfseries}}
-\renewcommand\subsubsection{\@startsection{subsubsection}{3}{\z@}%
-                                     {-.2\baselineskip\@plus -2\p@}%
-                                     {.2\baselineskip}%
-                                     {\reset@font\normalsize\bfseries}}
-\renewenvironment{theindex}{%
-  \if@twocolumn \@restonecolfalse \else \@restonecoltrue \fi
-  \columnseprule \z@ \columnsep 35\p@
-  \let\autoindex\@gobble
-  \twocolumn[\section*{\indexname}]%
-  \addcontentsline{toc}{chapter}{\indexname}%
-  \@mkboth{\uppercase{\indexname}}{\uppercase{\indexname}}%
-  \thispagestyle{plain}\parindent\z@
-  \parskip\z@ \@plus .3\p@\relax
-  \let\item\@idxitem
-}{%
-  \if@restonecol\onecolumn\else\clearpage\fi
-}
-\renewcommand{\thesection}{\arabic{section}}
-\long\def\@makecaption#1#2{%
-  \addvspace\abovecaptionskip
-  \begingroup
-    \countdef\@parcycles=8 % local count register
-    \@parcycles\z@
-    \@setpar{\advance\@parcycles\@ne \ifnum\@parcycles>999
-      \@@par\@parcycles\z@\fi
-      \ifhmode \unskip\hskip\parfillskip\penalty-\@M\fi}%
-    \@hangfrom{\textbf{#1.} }\vadjust{\penalty\m@ne}#2%
-  \endgroup
-  \ifhmode\unpenalty\fi\par
-  \ifnum\lastpenalty=\m@ne % only one line in the caption
-    \unpenalty \setbox\@tempboxa\lastbox
-    \nointerlineskip
-    \hbox to\hsize{\hfill\unhbox\@tempboxa\unskip\hfill}%
-  \fi
-  \nobreak\vskip\belowcaptionskip
-}
-\renewenvironment{table}{%
-  \belowcaptionskip\abovecaptionskip \abovecaptionskip\z@skip
-  \@float{table}%
-}{%
-  \end@float
-}
-\renewenvironment{table*}{%
-  \belowcaptionskip\abovecaptionskip \abovecaptionskip\z@skip
-  \@dblfloat{table}%
-}{%
-  \end@dblfloat
-}
-\setcounter{topnumber}{4}\setcounter{bottomnumber}{4}
-\setcounter{totalnumber}{4}\setcounter{dbltopnumber}{4}
-\renewcommand{\topfraction}{.97}\renewcommand{\bottomfraction}{.97}
-\renewcommand{\textfraction}{.03}\renewcommand{\floatpagefraction}{.9}
-\renewcommand{\dbltopfraction}{.97}
-\renewcommand{\dblfloatpagefraction}{.9}
-\setlength{\floatsep}{8pt plus6pt}
-\setlength{\textfloatsep}{10pt plus8pt}
-\setlength{\intextsep}{8pt plus6pt}
-\setlength{\dblfloatsep}{8pt plus6pt}
-\setlength{\dbltextfloatsep}{10pt plus8pt}
-\setlength{\@fptop}{0pt}\setlength{\@fpsep}{8pt}%
-\setlength{\@fpbot}{0pt plus 1fil}
-\setlength{\@dblfptop}{0pt}\setlength{\@dblfpsep}{8pt}%
-\setlength{\@dblfpbot}{0pt plus 1fil}
-
-\pagestyle{headings}
-\newcommand{\arrayargpatch}{%
-  \let\@oldarray\@array
-  \edef\@array[##1]##2{\catcode\number`\|=\number\catcode`\|
-    \catcode\number`\@=\number\catcode`\@ \relax
-    \let\noexpand\@array\noexpand\@oldarray
-    \noexpand\@array[##1]{##2}}%
-  \catcode`\|=12 \catcode`\@=12 \relax
-}
-\newenvironment{ctab}{%
-  \par\topsep\medskipamount
-  \trivlist\centering
-  \item[]%
-  \arrayargpatch
-  \begin{tabular}%
-}{%
-  \end{tabular}%
-  \endtrivlist
-}
-\RequirePackage{doc}
-\def\AltMacroFont{\MacroFont}
-\def\SpecialMainEnvIndex#1{%
-    \@bsphack
-    \special@index{%
-        #1\actualchar\string\texttt{#1} environment\encapchar main%
-    }%
-    \special@index{%
-        environments:\levelchar#1%
-        \actualchar\string\texttt{#1}%
-        \encapchar main}%
-    \@esphack
-}
-\def\SpecialEnvIndex#1{%
-    \@bsphack
-    \index{#1\actualchar\string\texttt{#1} environment\encapchar usage}%
-    \index{%
-        environments:\levelchar#1%
-        \actualchar\string\texttt{#1}%
-        \encapchar usage}%
-    \@esphack
-}
-\def\DescribeOption{%
-    \leavevmode
-    \@bsphack
-    \begingroup
-        \MakePrivateLetters
-    \Describe@Option
-}
-\def\Describe@Option#1{%
-    \endgroup
-    \marginpar{\raggedleft\PrintDescribeOption{#1}}%
-    \SpecialOptionIndex{#1}%
-    \@esphack
-    \ignorespaces
-}
-\def\PrintDescribeOption#1{\strut \MacroFont #1\ }
-\def\option{%
-    \let\SpecialMainEnvIndex\SpecialMainOptionIndex
-\begingroup
-   \catcode`\\12
-   \MakePrivateLetters \m@cro@ \iffalse}
-\def\SpecialMainOptionIndex#1{%
-    \@bsphack
-    \special@index{#1\actualchar\string\texttt{#1} option\encapchar main}%
-    \@esphack
-}
-\def\SpecialOptionIndex{\@category@index{option}}
-\def\hDocInput#1{\MakePercentIgnore
-  \begingroup
-  \begingroup \lccode`\~=`\@
-  \lowercase{\endgroup\long\def ~}##1##{%
-    \catcode`\==12 \skipfileheader{##1}}%
-  \catcode`\@=\active \catcode`\==14 % comment
-  \def\filename{#1}%
-  \@@input#1 \MakePercentComment}
-\def\skipfileheader#1#2 {\endgroup
-  \hGetFileInfo#2 version = "??" date = "??"\@nil
-  \begingroup\catcode`\==9 \catcode`\ =9 \futurelet\0\endgroup
-}
-\long\def\hGetFileInfo#1 version = "#2"#3 date = "#4"#5\@nil{%
-  \def\fileversion{#2}\def\filedate{#4}}
-\DoNotIndex{\@xp,\@nx,\@empty,\newcommand,\renewcommand}
-\DoNotIndex{\newenvironment,\renewenvironment,\providecommand}
-\DoNotIndex{\if,\fi,\ifnum,\fi,\@let@token,\futurelet,\fsa@n}
-\DoNotIndex{\ignorespaces,\@tempcnta,\@tempcntb,\count@}
-\DoNotIndex{\toks@,\@ne,\advance}
-\DoNotIndex{\!,\/,\?,\@,\^,\_}
-\DoNotIndex{\@@par,\@M,\@auxout,\@bsphack,\@esphack,\@depth,\@ehc}
-\DoNotIndex{\@for,\@flushglue,\@gobble,\@gobbletwo,\@height,\@idxitem}
-\DoNotIndex{\@ifnextchar,\@ifstar,\@ifundefined,\@input,\@latexerr}
-\DoNotIndex{\@makeschapterhead,\@namedef,\@nameuse,\@nil}
-\DoNotIndex{\@nobreakfalse,\@restonecolfalse,\@restonecoltrue}
-\DoNotIndex{\@tempa,\@tempb,\@tempc,\@tempf,\@temptokena,\@themark,\@width}
-\DoNotIndex{\active,\aindex,\baselineskip,\begin,\begingroup,\box}
-\DoNotIndex{\c@page,\catcode,\chapter,\char,\chardef,\closeout}
-\DoNotIndex{\CodelineIndex,\sp,\sb,\label,\leavevmode,\mark}
-\DoNotIndex{\mark,\newinsert,\newwrite,\newtoks,\xdef}
-\DoNotIndex{\columnsep,\columnseprule,\columnwidth,\csname,\def}
-\DoNotIndex{\dimen,\do,\DocInput,\documentstyle,\edef,\em}
-\DoNotIndex{\EnableCrossrefs,\end,\endcsname,\endgroup,\endinput}
-\DoNotIndex{\everypar,\expandafter,\filedate,\fileversion}
-\DoNotIndex{\footnotesize,\gdef,\global,\glossary,\hangindent}
-\DoNotIndex{\if@filesw,\else,\fi}
-\DoNotIndex{\if@nobreak,\if@twocolumn,\if@twoside,\fi,\fi,\fi}
-\DoNotIndex{\hsize,\hskip}
-\DoNotIndex{\ifhmode,\ifmmode,\ifodd,\ifvmode,\ifx,\fi,\fi,\fi,\fi,\fi}
-\DoNotIndex{\ifcase,\ifdim,\ifeof,\iffalse,\iftrue,\fi,\fi,\fi,\fi,\fi}
-\DoNotIndex{\ifcat,\fi}
-\DoNotIndex{\immediate,\insert,\item,\jobname,\long}
-\DoNotIndex{\let,\lineskip,\marginparsep,\marginparwidth,\maxdimen}
-\DoNotIndex{\makeatletter,\noexpand,\openout,\protect,\rlap}
-\DoNotIndex{\min,\newpage,\nobreak,\normalbaselineskip}
-\DoNotIndex{\normallineskip,\p@,\par,\parfillskip,\parindent,\parskip}
-\DoNotIndex{\penalty,\relax,\section,\sin,\sloppy,\space,\string}
-\DoNotIndex{\tableofcontents,\the,\thepage,\thispagestyle,\toks,\tt}
-\DoNotIndex{\twocolumn,\uppercase,\vbox,\vrule,\vskip,\vss}
-\DoNotIndex{\write,\z@,\z@skip}
-\endinput
-%%
-%% End of file `amsdtx.cls'.
diff --git a/Master/texmf-dist/doc/latex/amslatex/math/install.txt b/Master/texmf-dist/doc/latex/amslatex/math/install.txt
deleted file mode 100644
index fb4b835f282..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/math/install.txt
+++ /dev/null
@@ -1,108 +0,0 @@
-install.txt for amsmath 2.16 [2004/08/05]
-
-If you have a relatively up-do-date TeX system that complies with the
-TeX Directory Structure (TDS) standard, installing according to the
-instructions in section I below is the easiest method.  See
-
-    http://www.tug.org/tds/tds.pdf
-
-for details on the TDS standard.  If your TeX system does not comply
-with the  TDS standard, please contact the manufactuer of your TeX
-system for details on how to install third-party TeX packages.
-
-The first step is to identify the TEXMF folder that contains files used
-by LaTeX. To do this, look for the file article.cls. If you find, e.g.,
-
-  /usr/local/share/texmf/tex/latex/base/article.cls
-
-then we will define TEXMF to mean /usr/local/share/texmf (everything
-up to the /tex/latex/base part). On a Windows system the file location
-will probably be something like
-
-  c:\sw\texmf\tex\latex\base\article.cls
-
-Then we define TEXMF to mean c:\sw\texmf. In the following instructions,
-wherever you see "TEXMF" substitute the folder name determined in this
-way.
-
-If this terminology does not make sense to you, seek assistance from
-a friend or colleague, or from the company that you bought your TeX
-system from, or contact us at
-
-  tech-support@ams.org
-  800-321-4AMS (321-4267) (USA/Canada)
-  401-455-4080
-
-========================================================================
-I. Installing the easy way.
-
-1. Download the following archive file:
-
-   ftp://ftp.ams.org/pub/tex/amsmath.zip
-
-2. View the following files to assess the effects of the upgrade on
-your system:
-
-  00readme.txt
-  install.txt (this file)
-  diffs-m.txt
-
-3. Backup the old version of AMS-LaTeX, preferably by moving it out of the
-TEXMF tree.
-
-4. Extract files from the .zip archive using your favorite unzip tool,
-setting the extraction target directory to the texmf root directory.
-
-5. To check the end result, you should find that you now have amsmath.sty
-in the following location
-
-  TEXMF/tex/latex/amsmath/amsmath.sty
-
-Some TeX systems also use a database to keep track of TeX input files.
-If this database is not updated, your TeX system might not find the
-newly installed files.  Consult your TeX system's documentation to
-determine how to update this database.
-
-6. Some files will appear in both the source area and another area.
-This is because the source form and the in-use form are identical.
-As distributed, the files in the source/latex/ams* areas comprise a
-complete copy of the distribution from which all the other files can
-be regenerated if need be. If you need to conserve disk space, you
-could delete the files in the source area, since they are not needed
-for normal use.
-
-========================================================================
-II. Installing the not-so-easy way.
-
-Download ftp://ftp.ams.org/pub/tex/amsmath.zip.
-
-Make the following directories, if not already present:
-
-  TEXMF/source/latex/amsmath
-  TEXMF/tex/latex/amsmath
-  TEXMF/doc/latex/amsmath
-
-Backup your old AMS-LaTeX files if they are installed, preferably moving them
-out of the TEXMF tree.
-
-******** revise -- pdf file amsldoc will be included in distrib
-
-Create a temporary directory and generate documentation files (these assume
-a UNIX TeX installation):
-
-  - make directory /tmp/amsmath
-  - unzip -d /tmp/amscls amsmath.zip
-  - cd /tmp/amsmath
-  - Run latex on the file ams-m1.ins to produce .cls and .sty files
-  - Run latex on *.tex
-  - [optional] Run latex on *.dtx (technical documentation)
-  - move *.dvi, *.pdf, *.tex to TEXMF/doc/latex/amsmath
-  - [optional] move *.dtx to TEXMF/doc/latex/amsmath
-  - [optional] convert .dvi to .ps or .pdf
-  - move *.sty and *.cls to TEXMF/tex/latex/amsmath
-  - delete /tmp/amsmath
-
-Some TeX systems also use a database to keep track of TeX input files.
-If this database is not updated, your TeX system might not find the
-newly installed files.  Consult your system's documentation to determine
-how to update this database.
diff --git a/Master/texmf-dist/doc/latex/amslatex/math/manifest.txt b/Master/texmf-dist/doc/latex/amslatex/math/manifest.txt
deleted file mode 100644
index 2ea274a32d7..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/math/manifest.txt
+++ /dev/null
@@ -1,38 +0,0 @@
-
-texmf/doc/latex/amsmath/
-  amsldoc.pdf
-  diffs-m.txt
-  subeqn.pdf
-  technote.pdf
-  testmath.pdf
-
-texmf/source/latex/amsmath/
-  00readme.txt
-  ams-m1.ins
-  amsbsy.dtx
-  amscd.dtx
-  amsdtx.cls
-  amsgen.dtx
-  amsldoc.cls
-  amsldoc.tex
-  amsmath.dtx
-  amsopn.dtx
-  amstex.sty
-  amstext.dtx
-  amsxtra.dtx
-  diffs-m.txt
-  install.txt
-  manifest.txt
-  subeqn.tex
-  technote.tex
-  testmath.tex
-
-texmf/tex/latex/amsmath/
-  amsbsy.sty
-  amscd.sty
-  amsgen.sty
-  amsmath.sty
-  amsopn.sty
-  amstex.sty
-  amstext.sty
-  amsxtra.sty
diff --git a/Master/texmf-dist/doc/latex/amslatex/mathscinet.pdf b/Master/texmf-dist/doc/latex/amslatex/mathscinet.pdf
deleted file mode 100644
index 2392932a506..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/mathscinet.pdf
+++ /dev/null
diff --git a/Master/texmf-dist/doc/latex/amslatex/other/amsmidx.sty b/Master/texmf-dist/doc/latex/amslatex/other/amsmidx.sty
deleted file mode 100644
index 9fd19b0a06e..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/other/amsmidx.sty
+++ /dev/null
@@ -1,82 +0,0 @@
-% amsmidx.sty
-% 2001/09/26
-% preliminary version
-% 
-%  Package for use with AMS document classes to produce multiple indexes
-% 
-%  Adapted from multind.sty (version 1.1b, 31 August 1991), by F.W. Long
-
-%  Modified \makeindex and \index commands to allow multiple indexes
-%  The first argument of \makeindex and \index is the index file name.
-%  These commands now work more like \@starttoc and \addcontentsline.
-%  \index is no longer defined inside \makeindex but determines whether
-%  the appropriate file is defined before writing to it.
-
-\def\makeindex#1{\begingroup
-  \makeatletter
-  \if@filesw \expandafter\newwrite\csname #1@idxfile\endcsname
-  \expandafter\immediate\openout \csname #1@idxfile\endcsname #1.idx\relax
-  \typeout{Writing index file #1.idx }\fi \endgroup}
-
-\def\index#1{\@bsphack
-  \begingroup
-  \def\protect##1{\string##1\space}\@sanitize
-  \@wrindex{#1}}
-
-%  \@wrindex now checks that the appropriate file is defined.
-
-\def\@wrindex#1#2{\let\thepage\relax
-  \xdef\@gtempa{\@ifundefined{#1@idxfile}{}{%
-    \expandafter\write\csname #1@idxfile\endcsname
-      {\string\indexentry{#2}{\thepage}}}}%
-  \endgroup\@gtempa
-  \if@nobreak \ifvmode\nobreak\fi\fi
-  \@esphack}
-
-%  Modified \printindex command to accept the name of an index file.
-
-\renewcommand{\printindex}[1]{\@input{#1.ind}}
-
-%  Alternate command with new name:
-%  \Printindex locally modifies some formatting commands for an improved
-%  appearance, sets the index title and reads in the requested index file.
-%  #1 = file name, #2 = index title
-
-\newcommand\Printindex[2]{%
-  \begingroup
-    \cleardoublepage
-    \def\indexname{#2}%
-    \raggedright
-    \hyphenpenalty=10000
-    \renewcommand{\seename}{see~also}
-    \renewcommand{\subitem}{\par\hangindent 3em\hspace*{1em}}
-    \@input{#1.ind}%
-  \endgroup
-}
-
-\endinput
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-Instructions for using amsmidx.sty
-
-Put these commands in the preamble:
-
-     \usepackage{amsmidx}
-     \makeindex{filename-a}
-     \makeindex{filename-b}
-
-To identify the index entries in the text:
-
-     \index{filename-a}{index term}
-     \index{filename-b}{index term}
-
-In the backmatter, where the indexes are to appear:
-
-     \Printindex{filename-a}{First Index}
-     \Printindex{filename-b}{Second Index}
-
-Two files of index terms, filename-a.idx and filename-b.idx, will be
-generated.  To sort the index terms, process the two .idx files
-separately with Makeindex; this will create the files filename-a.ind
-and filename-b.ind, which will in turn be input by \Printindex.
diff --git a/Master/texmf-dist/doc/latex/amslatex/subeqn.pdf b/Master/texmf-dist/doc/latex/amslatex/subeqn.pdf
deleted file mode 100644
index a2aa7a40fd2..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/subeqn.pdf
+++ /dev/null
diff --git a/Master/texmf-dist/doc/latex/amslatex/subeqn.tex b/Master/texmf-dist/doc/latex/amslatex/subeqn.tex
deleted file mode 100644
index d0fa7d9b023..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/subeqn.tex
+++ /dev/null
@@ -1,202 +0,0 @@
-%%% ====================================================================
-%%%  @LaTeX-file{
-%%%     filename  = "subeqn.tex",
-%%%     version   = "1.2c",
-%%%     date      = "1999/11/29",
-%%%     time      = "14:49:29 EST",
-%%%     checksum  = "29866 202 668 6426",
-%%%     author    = "American Mathematical Society",
-%%%     copyright = "Copyright 1999 American Mathematical Society,
-%%%                  all rights reserved.  Copying of this file is
-%%%                  authorized only if either:
-%%%                  (1) you make absolutely no changes to your copy,
-%%%                  including name; OR
-%%%                  (2) if you do make changes, you first rename it
-%%%                  to some other name.",
-%%%     address   = "American Mathematical Society,
-%%%                  Technical Support,
-%%%                  Electronic Products and Services,
-%%%                  P. O. Box 6248,
-%%%                  Providence, RI 02940,
-%%%                  USA",
-%%%     telephone = "401-455-4080 or (in the USA and Canada)
-%%%                  800-321-4AMS (321-4267)",
-%%%     FAX       = "401-331-3842",
-%%%     email     = "tech-support@ams.org (Internet)",
-%%%     supported = "yes",
-%%%     keywords  = "latex, amslatex, ams-latex, amstex",
-%%%     abstract  = "This is part of the AMS-\LaTeX{} distribution.
-%%%                  It is a sample document illustrating the use of
-%%%                  the subequations environment and the effect of
-%%%                  the fleqn option.",
-%%%     docstring = "The checksum field above contains a CRC-16
-%%%                  checksum as the first value, followed by the
-%%%                  equivalent of the standard UNIX wc (word
-%%%                  count) utility output of lines, words, and
-%%%                  characters.  This is produced by Robert
-%%%                  Solovay's checksum utility.",
-%%%  }
-%%% ====================================================================
-\documentclass[fleqn]{article}
-
-\title{Test of subequations environment}
-\author{mjd}
-
-\usepackage{amsmath}
-\numberwithin{equation}{section}
-
-\newcommand{\env}[1]{{\normalfont\texttt{#1}}}
-
-\AtEndDocument{\multipasswarning}
-\newcommand{\multipasswarning}{%
-  \clearpage
-  \typeout{%
-  **********************************************************************}
-  \typeout{%
-  Note: This document needs to run through LaTeX three times, instead of}
-  \typeout{%
-  the usual two, to resolve indirect cross-references.}
-  \typeout{%
-  **********************************************************************}
-}
-
-\makeatletter
-%    Omit the warning message if three passes have been completed (on
-%    first pass \ref{check} is undefined and it is set to 0; on second
-%    pass \ref{check} is 0 and set to 1; on third pass it is 1).
-\def\checkref{\begingroup
-  \@ifundefined{r@check}{\def\@currentlabel{0}}{\def\@currentlabel{1}}%
-  \ifnum1=0\expandafter\@firstoftwo\r@check\relax
-    \global\let\multipasswarning\relax
-  \fi
-  \label{check}%
-  \endgroup}
-\makeatother
-
-\begin{document}
-\section{Prime equation numbers}
-
-First an equation.
-\begin{equation}\label{e:previous}
-A=B
-\end{equation}
-That was equation \eqref{e:previous}.
-
-Then the same, with a prime on the number.\checkref
-\begin{equation}
-\tag{\ref{e:previous}$'$}\label{e:prevprime}
-C=D
-\end{equation}
-And that was equation \eqref{e:prevprime}.
-
-Notice, by the way, that when a \verb"\ref" occurs inside a \verb"\tag",
-and that \verb"\tag" is then \verb"\label"'d, a \verb"\ref" for the the
-second \verb"\label" requires \emph{three} runs of \LaTeX{} in order to
-get the proper value. (If you run through the logic of \LaTeX{}'s
-cross-referencing mechanisms as they apply in this case, you will see
-that this is necessary.)
-
-\section{Subnumbered equations}
-
-Here is a,b,c sub-numbering.
-\begin{subequations}
-\begin{eqnarray}
-A&=&B\\
-D&=&C \label{e:middle}\\
-E&=&F
-\end{eqnarray}
-\end{subequations}
-That was produced with the \env{eqnarray} environment; the middle line
-was labeled as \eqref{e:middle}.
-
-An equation following the end of the \verb"subequations" environment
-should revert to normal numbering:
-\begin{equation}\label{e:check}
-H<K
-\end{equation}
-A check on the labeling: that was equation~\eqref{e:check}.
-
-The sub-numbered equations can be spread out through the text, like
-this:
-\begin{subequations}
-\begin{equation}
-A=B
-\end{equation}
-The \verb"subequations" environment can span arbitrary text between
-subsidiary equations. The only restriction is that if there are any
-numbered equations inside the \verb"subequations" environment that break
-out of the subequation numbering sequence, they would have to be handled
-specially.
-\begin{equation}
-D=C \label{e:newmiddle}
-\end{equation}
-More arbitrary text.
-\begin{equation}
-E=F
-\end{equation}
-\end{subequations}
-Label check: the middle one was \eqref{e:newmiddle}
-
-A final equation for a numbering check.
-\begin{equation}\label{e:final}
-G=H
-\end{equation}
-That equation was labeled as \eqref{e:final}.
-
-\section{Tests of \env{align}, \env{gather}, and other
-AMS-\protect\LaTeX{} environments}
-
-The \env{align} environment:
-\begin{subequations}
-\begin{align}
-\label{align:a}A+B&=B+A\\
-\label{align:b}C&=D+E\\
-\label{align:c}E&=F
-\end{align}
-\end{subequations}
-Label check: that was \eqref{align:a}, \eqref{align:b}, and
-\eqref{align:c}.
-
-The \env{align} environment again:
-\begin{subequations}
-\begin{align}
-\label{xalign:a}A+B&=B&     B&=B+A\\
-\label{xalign:b}C&=D+E&     C\oplus D&=E\\
-\label{xalign:c}E&=F&       E'&=F'
-\end{align}
-\end{subequations}
-Label check: that was \eqref{xalign:a}, \eqref{xalign:b}, and
-\eqref{xalign:c}.
-
-The \env{gather} environment. For the third line we refer to one of the
-numbers in the first \env{align} structure.
-\begin{subequations}
-\begin{gather}
-\label{gather:a}A+B=B\\
-\label{gather:b}C=D+E\\
-\tag{\ref{align:c}$'$}\label{gather:c}E=F
-\end{gather}
-\end{subequations}
-Label check: that was \eqref{gather:a},
-\eqref{gather:b}, and
-\eqref{gather:c}.
-
-The next \env{subequations} environment encompasses two separate
-equations. A \env{split} environment:
-\begin{subequations}
-\begin{equation}
-\label{split:x}
-\begin{split}
-A&=B+C+F\\
-&=G
-\end{split}
-\end{equation}
-and a \env{multline} environment:
-\begin{multline}\label{multline:x}
-A[B]C[D]E[F]G[[H[I]J[K]L[M]N]]=\\
-H[I]J[K]L[M]N[O]P[Q]R[S]T[U]V[W]X[Y]Z
-\end{multline}
-\end{subequations}
-Label check: That was \eqref{split:x} and \eqref{multline:x}.
-
-\end{document}
diff --git a/Master/texmf-dist/doc/latex/amslatex/technote.pdf b/Master/texmf-dist/doc/latex/amslatex/technote.pdf
deleted file mode 100644
index 11b67dfa4dc..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/technote.pdf
+++ /dev/null
diff --git a/Master/texmf-dist/doc/latex/amslatex/technote.tex b/Master/texmf-dist/doc/latex/amslatex/technote.tex
deleted file mode 100644
index aede450621e..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/technote.tex
+++ /dev/null
@@ -1,233 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "technote.tex",
-%%%   version   = "2.0",
-%%%   date      = "1999/11/15",
-%%%   time      = "15:07:20 EST",
-%%%   checksum  = "58506 233 1647 12005",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995, 1999 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Electronic Products and Services,
-%%%                P. O. Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   supported = "yes",
-%%%   keywords  = "amsmath, latex",
-%%%   abstract  = "This is part of the AMS-\LaTeX{} distribution. It
-%%%                is a document discussing some technical issues in the
-%%%                contents and interface of AMS-\LaTeX{} packages."
-%%%   docstring = "The checksum field above contains a CRC-16 checksum
-%%%                as the first value, followed by the equivalent of
-%%%                the standard UNIX wc (word count) utility output of
-%%%                lines, words, and characters.  This is produced by
-%%%                Robert Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1994/12/01]% LaTeX date must December 1994 or later
-\documentclass{amsdtx}
-
-\title{Technical notes on the \pkg{amsmath} package}
-\author{American Mathematical Society\\Michael Downes}
-\date{1999/10/29}
-
-\markboth
-  {Technical notes on the \pkg{amsmath} package}
-  {Technical notes on the \pkg{amsmath} package}
-\renewcommand{\sectionmark}[1]{}
-
-\providecommand{\etc}[1]{etc.}
-
-\providecommand{\begend}[1]{%
-  {\ntt \symbol{92}begin\symbol{123}#1\symbol{125}}
-    \ldots\ {\ntt\symbol{92}end\symbol{123}#1\symbol{125}}%
-}
-
-\MakeShortVerb{\|}
-
-\begin{document}
-\maketitle
-
-\section{Introduction}
-
-These notes are miscellaneous remarks on some technical questions
-applicable to version 2.0 of \amslatex/.
-
-\section{Deprecated and disallowed commands}
-
-Certain commands that were in the \pkg{amstex} package (the predecessor,
-in \amslatex/ 1.0 and 1.1, of the \pkg{amsmath} package) were moved into
-\pkg{amsxtra} because they seemed to be little-used relics:
-\cn{accentedsymbol}, \qq{sup accents} (\cn{sptilde}, \cn{sphat}, etc.).
-
-Certain other commands\mdash e.g., \cn{over}, \cn{pmatrix}, and
-\cn{cases}\mdash are changed by the \pkg{amsmath} package to produce
-warning messages or error messages, depending on their history; these
-are discussed in more detail in the following sections.
-
-\section{Why do \cn{matrix}, \cn{pmatrix}, and \cn{cases} stop working
-when I add the \pkg{amsmath} package?}
-
-If you used the \fn{plain.tex} versions of \cn{matrix}, \cn{pmatrix}, or
-\cn{cases} in a document and then later converted the document to use
-the \pkg{amsmath} package (or one of the AMS documentclasses, which
-automatically call the \pkg{amsmath} package internally), the instances
-of those commands will produce error messages. The problem is that when
-\latex/ was originally created, it adopted most of its mathematics
-features straight from \fn{plain.tex}. But in the case of \cn{matrix},
-\cn{pmatrix}, \cn{cases} this was a mistake\mdash the \fn{plain.tex}
-syntax for them is decidedly non-\latex/ in style, for example the fact
-that they use \cs{cr} instead of \cn{\\} to mark line breaks, and they
-don't use \cn{begin} and \cn{end}. In basic \latex/ this mistake will be
-perpetuated at least until \latex/3 appears, in order to avoid breaking
-existing documents. But no existing documents that were written with the
-\pkg{amsmath} package have that syntactic problem, as \pkg{amsmath}
-provides proper \latex/-syntax versions of \cn{matrix} and the others.
-The possibility of optionally allowing the \fn{plain.tex} variants to
-make document conversion easier seems ill-advised since those variants
-are so blatantly wrong in a \latex/ context. The \env{array} environment
-ought to have been used instead.
-
-\section{Why do \cn{over}, \cn{atop}, \cn{above} [\dots{\ntt withdelims}]
- give a warning when I add the \pkg{amsmath} package?}
-
-Using the six generalized fraction commands \cn{over},
-\cn{overwithdelims}, \cn{atop}, \cn{atopwithdelims}, \cn{above},
-\cn{abovewithdelims} is not really a good idea in \latex/, for reasons
-explained below. I construe \latex/'s provision of \cs{frac}, and the
-lack of any mention in the \latex/ book of the primitive fraction
-commands, as an implicit injunction against their use, although I don't
-think Lamport actually spent a lot of time pondering the issue, and the
-basic \latex/ version of \cn{frac} provides access only to \cn{over},
-not to \cn{atop}, \cn{above}, or the \verb'withdelims' variants. The
-\pkg{amsmath} package, however, provides a \cn{genfrac} command that
-gives user-level access to all six of the generalized fraction
-primitives in a way that conforms to the syntactic conventions followed
-by all other \latex/ commands.
-
-Not only is the unusual syntax of the \tex/ primitives rather out of
-place in \latex/, but furthermore that syntax seems to be responsible
-for one of the most significant flaws in \tex/'s mathematical
-typesetting capabilities: the fact that the current mathstyle at any
-given point in a math formula cannot be determined until the end of the
-formula, because of the possibility that a following generalized
-fraction command will change the mathstyle of the \emph{preceding}
-material. To cite two of the worst side effects: \cn{mathchoice} must
-actually typeset all four of its arguments, instead of being able to
-immediately select only one; and, were it possible to always know the
-current math style at a given point, math font selection would be
-greatly simplified and the upper limit of 16 different math font
-\cn{fam}s would never be a problem as \cn{text,script[script]font}
-assignments for any \cn{fam} could take immediate effect and therefore
-could be changed arbitrarily often within a single formula. More
-concretely, math font selection difficulties are responsible for many of
-the more convoluted passages in the source code of \latex/'s NFSS (that
-does font loading on demand) and of the \pkg{amsmath} package, and by
-extension it has historically been responsible for significant delays in
-making new features available to end users and for making those features
-more prone to bugs.
-
-There are additional bad consequences following from the syntax of those
-generalized fraction commands that only become evident when you do some
-writing of nontrivial macros for math use. For example, as things
-currently stand you cannot measure the size of any object in math
-without going through \cn{mathchoice} and \emph{leaving and reentering
-math mode} via \verb'\hbox{$' (which then introduces complications
-regarding \cn{everymath} and \cn{mathsurround}). And it seems that
-uncertainty about the current mathstyle is the only barrier to allowing
-the use of mu units with \cn{vrule}, to make vertical struts in
-constructing compound symbols or notation. And so on and so forth.
-
-\section{The \opt{fleqn} option and \cn{mathindent}}
-
-Strictly speaking, the \pkg{amsmath} package doesn't use \cn{mathindent}
-to control the left indent of displayed equations when the \opt{fleqn}
-option is in effect: it uses an internal parameter \cs{@mathmargin}
-instead. However, for compatibility with existing \latex/ documentation,
-\pkg{amsmath} turns \cn{mathindent} into an alias for \cs{@mathmargin}.
-There is a small risk here: In the plain \latex/ implementation,
-\cn{mathindent} is a dimen register, but with \pkg{amsmath}
-\cs{@mathmargin} is a skip register and, by association, so is
-\cn{mathindent}. If any package or documentclass uses \cn{mathindent} in
-a way that depends on it being a dimen register, when used in
-conjunction with the \pkg{amsmath} package it may be vulnerable to a
-well-known pitfall having to do with the primitive \tex/ lookahead for a
-\texttt{plus} or \texttt{minus} key word. However if the standard
-\latex/ commands \cn{setlength} and \cn{addtolength} are used to modify
-\cn{mathindent} then this problem will not arise.
-
-\section{Why can't I use abbreviations for \protect\begend{align}?}
-
-Authors often like to use abbreviations such as |\beq| |\eeq| for
-|\begin{equation}| |\end{equation}|. For some environments defined by
-the \pkg{amsmath} package, such as \env{align}, \env{gather},
-\env{multline}, and others of the same general type, this does not work:
-An attempt to define |\bal| |\eal| as shorthand for |\begin{align}|
-|\end{align}| will fail with a puzzling error message. This has to do
-with unfortunately nontrivial technical complications: the given
-environments must read their contents as a delimited macro argument
-because they do multipass processing of the contents using algorithms
-inherited from Spivak's \fn{amstex.tex}. The obvious
-solution\mdash substitution of different algorithms that do box shuffling
-instead of token shuffling for the multipass calculations\mdash would
-require rewriting these display environments from the ground up; while
-that is a worthy goal, it was beyond the original scope of the
-\amslatex/ project. Work is under way on an auxiliary package called
-\pkg{breqn} that addresses not only this problem but a number of others;
-at the time of this writing, however [September 1999] it has only
-progressed as far as a beta release.
-
-Some workarounds:
-\begin{itemize}
-\item |\def\bal#1\eal{\begin{align}#1\end{align}}|
-\item Define |\newcommand{\env}[2]{\begin{#1}#2\end{#1}}| and then use
-  |\env{align}{...}|
-\end{itemize}
-
-\section{The \pkg{upref} package}
-
-The reason for splitting out the \pkg{upref} package instead of
-automatically incorporating it in the \cls{amsart} and \cls{amsbook}
-classes is this: It involves low-level surgery on an important \latex/
-command. This means that if ever this command changes in the future (as
-it did between versions 2.09 and 2e of \latex/) we have a maintenance
-problem. And the benefit that \pkg{upref} provides is something that
-most end users don't care much about.
-
-\section{The \pkg{amsintx} package}
-
-After a very preliminary trial release the \pkg{amsintx} package was
-withdrawn to await further development. It is still considered a worthy
-project but has simply not yet made it to the head of the priority queue
-in the AMS \latex/ development program, as it has had to contend with a
-number of other equally worthy projects for development time.
-
-\section{Hyphenation in the documentation}
-
-Hyphenation was allowed for certain long command names in
-\fn{amsldoc.tex}; this presented technical difficulties because \latex/
-normally deactivates hyphenation for tt fonts. The method chosen to
-reinstate hyphenation was to turn off the encoding-specific function
-\cs{OT1+cmtt} that disables the \cs{hyphenchar} for tt fonts; see the
-definition of \cn{allowtthyphens} in \fn{amsdtx.dtx}. Then a list of all
-tt words in the document was gathered (from the \fn{.idx} file, produced
-by the \cn{cn}, \cn{fn}, \cn{pkg}, etc. commands) and \cn{showhyphens}
-was applied to this list. The result was another list in the resulting
-\tex/ log, containing those words in a form suitable for the argument of
-\cn{hyphenation}. That list was then edited by hand to overrule
-undesirable hyphenations; words with acceptable hyphenations were
-dropped from the list, as they don't need to be repeated there.
-
-\end{document}
diff --git a/Master/texmf-dist/doc/latex/amslatex/testmath.pdf b/Master/texmf-dist/doc/latex/amslatex/testmath.pdf
deleted file mode 100644
index 9d638a0b796..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/testmath.pdf
+++ /dev/null
diff --git a/Master/texmf-dist/doc/latex/amslatex/testmath.tex b/Master/texmf-dist/doc/latex/amslatex/testmath.tex
deleted file mode 100644
index 069944ee9d0..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/testmath.tex
+++ /dev/null
@@ -1,2342 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "testmath.tex",
-%%%   version   = "2.0",
-%%%   date      = "1999/11/15",
-%%%   time      = "15:09:17 EST",
-%%%   checksum  = "07762 2342 7811 82371",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995, 1999 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Electronic Products and Services,
-%%%                P. O. Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, amsmath, examples, documentation",
-%%%   supported = "yes",
-%%%   abstract  = "This is a test file containing extensive examples of
-%%%                mathematical constructs supported by the amsmath
-%%%                package.",
-%%%   docstring = "The checksum field above contains a CRC-16
-%%%                checksum as the first value, followed by the
-%%%                equivalent of the standard UNIX wc (word
-%%%                count) utility output of lines, words, and
-%%%                characters.  This is produced by Robert
-%%%                Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1994/12/01]% LaTeX date must December 1994 or later
-\documentclass[draft]{article}
-\pagestyle{headings}
-
-\title{Sample Paper for the \pkg{amsmath} Package\\
-File name: \fn{testmath.tex}}
-\author{American Mathematical Society}
-\date{Version 2.0, 1999/11/15}
-
-\usepackage{amsmath,amsthm}
-
-%    Some definitions useful in producing this sort of documentation:
-\chardef\bslash=`\\ % p. 424, TeXbook
-%    Normalized (nonbold, nonitalic) tt font, to avoid font
-%    substitution warning messages if tt is used inside section
-%    headings and other places where odd font combinations might
-%    result.
-\newcommand{\ntt}{\normalfont\ttfamily}
-%    command name
-\newcommand{\cn}[1]{{\protect\ntt\bslash#1}}
-%    LaTeX package name
-\newcommand{\pkg}[1]{{\protect\ntt#1}}
-%    File name
-\newcommand{\fn}[1]{{\protect\ntt#1}}
-%    environment name
-\newcommand{\env}[1]{{\protect\ntt#1}}
-\hfuzz1pc % Don't bother to report overfull boxes if overage is < 1pc
-
-%       Theorem environments
-
-%% \theoremstyle{plain} %% This is the default
-\newtheorem{thm}{Theorem}[section]
-\newtheorem{cor}[thm]{Corollary}
-\newtheorem{lem}[thm]{Lemma}
-\newtheorem{prop}[thm]{Proposition}
-\newtheorem{ax}{Axiom}
-
-\theoremstyle{definition}
-\newtheorem{defn}{Definition}[section]
-
-\theoremstyle{remark}
-\newtheorem{rem}{Remark}[section]
-\newtheorem*{notation}{Notation}
-
-%\numberwithin{equation}{section}
-
-\newcommand{\thmref}[1]{Theorem~\ref{#1}}
-\newcommand{\secref}[1]{\S\ref{#1}}
-\newcommand{\lemref}[1]{Lemma~\ref{#1}}
-
-\newcommand{\bysame}{\mbox{\rule{3em}{.4pt}}\,}
-
-%       Math definitions
-
-\newcommand{\A}{\mathcal{A}}
-\newcommand{\B}{\mathcal{B}}
-\newcommand{\st}{\sigma}
-\newcommand{\XcY}{{(X,Y)}}
-\newcommand{\SX}{{S_X}}
-\newcommand{\SY}{{S_Y}}
-\newcommand{\SXY}{{S_{X,Y}}}
-\newcommand{\SXgYy}{{S_{X|Y}(y)}}
-\newcommand{\Cw}[1]{{\hat C_#1(X|Y)}}
-\newcommand{\G}{{G(X|Y)}}
-\newcommand{\PY}{{P_{\mathcal{Y}}}}
-\newcommand{\X}{\mathcal{X}}
-\newcommand{\wt}{\widetilde}
-\newcommand{\wh}{\widehat}
-
-\DeclareMathOperator{\per}{per}
-\DeclareMathOperator{\cov}{cov}
-\DeclareMathOperator{\non}{non}
-\DeclareMathOperator{\cf}{cf}
-\DeclareMathOperator{\add}{add}
-\DeclareMathOperator{\Cham}{Cham}
-\DeclareMathOperator{\IM}{Im}
-\DeclareMathOperator{\esssup}{ess\,sup}
-\DeclareMathOperator{\meas}{meas}
-\DeclareMathOperator{\seg}{seg}
-
-%    \interval is used to provide better spacing after a [ that
-%    is used as a closing delimiter.
-\newcommand{\interval}[1]{\mathinner{#1}}
-
-%    Notation for an expression evaluated at a particular condition. The
-%    optional argument can be used to override automatic sizing of the
-%    right vert bar, e.g. \eval[\biggr]{...}_{...}
-\newcommand{\eval}[2][\right]{\relax
-  \ifx#1\right\relax \left.\fi#2#1\rvert}
-
-%    Enclose the argument in vert-bar delimiters:
-\newcommand{\envert}[1]{\left\lvert#1\right\rvert}
-\let\abs=\envert
-
-%    Enclose the argument in double-vert-bar delimiters:
-\newcommand{\enVert}[1]{\left\lVert#1\right\rVert}
-\let\norm=\enVert
-
-\begin{document}
-\maketitle
-\markboth{Sample paper for the {\protect\ntt\lowercase{amsmath}} package}
-{Sample paper for the {\protect\ntt\lowercase{amsmath}} package}
-\renewcommand{\sectionmark}[1]{}
-
-\section{Introduction}
-
-This paper contains examples of various features from \AmS-\LaTeX{}.
-
-\section{Enumeration of Hamiltonian paths in a graph}
-
-Let $\mathbf{A}=(a_{ij})$ be the adjacency matrix of graph $G$. The
-corresponding Kirchhoff matrix $\mathbf{K}=(k_{ij})$ is obtained from
-$\mathbf{A}$ by replacing in $-\mathbf{A}$ each diagonal entry by the
-degree of its corresponding vertex; i.e., the $i$th diagonal entry is
-identified with the degree of the $i$th vertex. It is well known that
-\begin{equation}
-\det\mathbf{K}(i|i)=\text{ the number of spanning trees of $G$},
-\quad i=1,\dots,n
-\end{equation}
-where $\mathbf{K}(i|i)$ is the $i$th principal submatrix of
-$\mathbf{K}$.
-\begin{verbatim}
-\det\mathbf{K}(i|i)=\text{ the number of spanning trees of $G$},
-\end{verbatim}
-
-Let $C_{i(j)}$ be the set of graphs obtained from $G$ by attaching edge
-$(v_iv_j)$ to each spanning tree of $G$. Denote by $C_i=\bigcup_j
-C_{i(j)}$. It is obvious that the collection of Hamiltonian cycles is a
-subset of $C_i$. Note that the cardinality of $C_i$ is $k_{ii}\det
-\mathbf{K}(i|i)$. Let $\wh X=\{\hat x_1,\dots,\hat x_n\}$.
-\begin{verbatim}
-$\wh X=\{\hat x_1,\dots,\hat x_n\}$
-\end{verbatim}
-Define multiplication for the elements of $\wh X$ by
-\begin{equation}\label{multdef}
-\hat x_i\hat x_j=\hat x_j\hat x_i,\quad \hat x^2_i=0,\quad
-i,j=1,\dots,n.
-\end{equation}
-Let $\hat k_{ij}=k_{ij}\hat x_j$ and $\hat k_{ij}=-\sum_{j\not=i} \hat
-k_{ij}$. Then the number of Hamiltonian cycles $H_c$ is given by the
-relation \cite{liuchow:formalsum}
-\begin{equation}\label{H-cycles}
-\biggl(\prod^n_{\,j=1}\hat x_j\biggr)H_c=\frac{1}{2}\hat k_{ij}\det
-\wh{\mathbf{K}}(i|i),\qquad i=1,\dots,n.
-\end{equation}
-The task here is to express \eqref{H-cycles}
-in a form free of any $\hat x_i$,
-$i=1,\dots,n$. The result also leads to the resolution of enumeration of
-Hamiltonian paths in a graph.
-
-It is well known that the enumeration of Hamiltonian cycles and paths in
-a complete graph $K_n$ and in a complete bipartite graph $K_{n_1n_2}$
-can only be found from \textit{first combinatorial principles}
-\cite{hapa:graphenum}. One wonders if there exists a formula which can
-be used very efficiently to produce $K_n$ and $K_{n_1n_2}$. Recently,
-using Lagrangian methods, Goulden and Jackson have shown that $H_c$ can
-be expressed in terms of the determinant and permanent of the adjacency
-matrix \cite{gouja:lagrmeth}. However, the formula of Goulden and
-Jackson determines neither $K_n$ nor $K_{n_1n_2}$ effectively. In this
-paper, using an algebraic method, we parametrize the adjacency matrix.
-The resulting formula also involves the determinant and permanent, but
-it can easily be applied to $K_n$ and $K_{n_1n_2}$. In addition, we
-eliminate the permanent from $H_c$ and show that $H_c$ can be
-represented by a determinantal function of multivariables, each variable
-with domain $\{0,1\}$. Furthermore, we show that $H_c$ can be written by
-number of spanning trees of subgraphs. Finally, we apply the formulas to
-a complete multigraph $K_{n_1\dots n_p}$.
-
-The conditions $a_{ij}=a_{ji}$, $i,j=1,\dots,n$, are not required in
-this paper. All formulas can be extended to a digraph simply by
-multiplying $H_c$ by 2.
-
-\section{Main Theorem}
-\label{s:mt}
-
-\begin{notation} For $p,q\in P$ and $n\in\omega$ we write
-$(q,n)\le(p,n)$ if $q\le p$ and $A_{q,n}=A_{p,n}$.
-\begin{verbatim}
-\begin{notation} For $p,q\in P$ and $n\in\omega$
-...
-\end{notation}
-\end{verbatim}
-\end{notation}
-
-Let $\mathbf{B}=(b_{ij})$ be an $n\times n$ matrix. Let $\mathbf{n}=\{1,
-\dots,n\}$. Using the properties of \eqref{multdef}, it is readily seen
-that
-
-\begin{lem}\label{lem-per}
-\begin{equation}
-\prod_{i\in\mathbf{n}}
-\biggl(\sum_{\,j\in\mathbf{n}}b_{ij}\hat x_i\biggr)
-=\biggl(\prod_{\,i\in\mathbf{n}}\hat x_i\biggr)\per \mathbf{B}
-\end{equation}
-where $\per \mathbf{B}$ is the permanent of $\mathbf{B}$.
-\end{lem}
-
-Let $\wh Y=\{\hat y_1,\dots,\hat y_n\}$. Define multiplication
-for the elements of $\wh Y$ by
-\begin{equation}
-\hat y_i\hat y_j+\hat y_j\hat y_i=0,\quad i,j=1,\dots,n.
-\end{equation}
-Then, it follows that
-\begin{lem}\label{lem-det}
-\begin{equation}\label{detprod}
-\prod_{i\in\mathbf{n}}
-\biggl(\sum_{\,j\in\mathbf{n}}b_{ij}\hat y_j\biggr)
-=\biggl(\prod_{\,i\in\mathbf{n}}\hat y_i\biggr)\det\mathbf{B}.
-\end{equation}
-\end{lem}
-
-Note that all basic properties of determinants are direct consequences
-of Lemma ~\ref{lem-det}. Write
-\begin{equation}\label{sum-bij}
-\sum_{j\in\mathbf{n}}b_{ij}\hat y_j=\sum_{j\in\mathbf{n}}b^{(\lambda)}
-_{ij}\hat y_j+(b_{ii}-\lambda_i)\hat y_i\hat y
-\end{equation}
-where
-\begin{equation}
-b^{(\lambda)}_{ii}=\lambda_i,\quad b^{(\lambda)}_{ij}=b_{ij},
-\quad i\not=j.
-\end{equation}
-Let $\mathbf{B}^{(\lambda)}=(b^{(\lambda)}_{ij})$. By \eqref{detprod}
-and \eqref{sum-bij}, it is
-straightforward to show the following
-result:
-\begin{thm}\label{thm-main}
-\begin{equation}\label{detB}
-\det\mathbf{B}=
-\sum^n_{l =0}\sum_{I_l \subseteq n}
-\prod_{i\in I_l}(b_{ii}-\lambda_i)
-\det\mathbf{B}^{(\lambda)}(I_l |I_l ),
-\end{equation}
-where $I_l =\{i_1,\dots,i_l \}$ and $\mathbf{B}^{(\lambda)}(I_l |I_l )$
-is the principal submatrix obtained from $\mathbf{B}^{(\lambda)}$
-by deleting its $i_1,\dots,i_l $ rows and columns.
-\end{thm}
-
-\begin{rem}
-Let $\mathbf{M}$ be an $n\times n$ matrix. The convention
-$\mathbf{M}(\mathbf{n}|\mathbf{n})=1$ has been used in \eqref{detB} and
-hereafter.
-\end{rem}
-
-Before proceeding with our discussion, we pause to note that
-\thmref{thm-main} yields immediately a fundamental formula which can be
-used to compute the coefficients of a characteristic polynomial
-\cite{mami:matrixth}:
-\begin{cor}\label{BI}
-Write $\det(\mathbf{B}-x\mathbf{I})=\sum^n_{l =0}(-1)
-^l b_l x^l $. Then
-\begin{equation}\label{bl-sum}
-b_l =\sum_{I_l \subseteq\mathbf{n}}\det\mathbf{B}(I_l |I_l ).
-\end{equation}
-\end{cor}
-Let
-\begin{equation}
-\mathbf{K}(t,t_1,\dots,t_n)
-=\begin{pmatrix} D_1t&-a_{12}t_2&\dots&-a_{1n}t_n\\
--a_{21}t_1&D_2t&\dots&-a_{2n}t_n\\
-\hdotsfor[2]{4}\\
--a_{n1}t_1&-a_{n2}t_2&\dots&D_nt\end{pmatrix},
-\end{equation}
-\begin{verbatim}
-\begin{pmatrix} D_1t&-a_{12}t_2&\dots&-a_{1n}t_n\\
--a_{21}t_1&D_2t&\dots&-a_{2n}t_n\\
-\hdotsfor[2]{4}\\
--a_{n1}t_1&-a_{n2}t_2&\dots&D_nt\end{pmatrix}
-\end{verbatim}
-where
-\begin{equation}
-D_i=\sum_{j\in\mathbf{n}}a_{ij}t_j,\quad i=1,\dots,n.
-\end{equation}
-
-Set
-\begin{equation*}
-D(t_1,\dots,t_n)=\frac{\delta}{\delta t}\eval{\det\mathbf{K}(t,t_1,\dots,t_n)
-}_{t=1}.
-\end{equation*}
-Then
-\begin{equation}\label{sum-Di}
-D(t_1,\dots,t_n)
-=\sum_{i\in\mathbf{n}}D_i\det\mathbf{K}(t=1,t_1,\dots,t_n; i|i),
-\end{equation}
-where $\mathbf{K}(t=1,t_1,\dots,t_n; i|i)$ is the $i$th principal
-submatrix of $\mathbf{K}(t=1,t_1,\dots,t_n)$.
-
-Theorem ~\ref{thm-main} leads to
-\begin{equation}\label{detK1}
-\det\mathbf{K}(t_1,t_1,\dots,t_n)
-=\sum_{I\in\mathbf{n}}(-1)^{\envert{I}}t^{n-\envert{I}}
-\prod_{i\in I}t_i\prod_{j\in I}(D_j+\lambda_jt_j)\det\mathbf{A}
-^{(\lambda t)}(\overline{I}|\overline I).
-\end{equation}
-Note that
-\begin{equation}\label{detK2}
-\det\mathbf{K}(t=1,t_1,\dots,t_n)=\sum_{I\in\mathbf{n}}(-1)^{\envert{I}}
-\prod_{i\in I}t_i\prod_{j\in I}(D_j+\lambda_jt_j)\det\mathbf{A}
-^{(\lambda)}(\overline{I}|\overline{I})=0.
-\end{equation}
-
-Let $t_i=\hat x_i,i=1,\dots,n$. Lemma ~\ref{lem-per} yields
-\begin{multline}
-\biggl(\sum_{\,i\in\mathbf{n}}a_{l _i}x_i\biggr)
-\det\mathbf{K}(t=1,x_1,\dots,x_n;l |l )\\
-=\biggl(\prod_{\,i\in\mathbf{n}}\hat x_i\biggr)
-\sum_{I\subseteq\mathbf{n}-\{l \}}
-(-1)^{\envert{I}}\per\mathbf{A}^{(\lambda)}(I|I)
-\det\mathbf{A}^{(\lambda)}
-(\overline I\cup\{l \}|\overline I\cup\{l \}).
-\label{sum-ali}
-\end{multline}
-\begin{verbatim}
-\begin{multline}
-\biggl(\sum_{\,i\in\mathbf{n}}a_{l _i}x_i\biggr)
-\det\mathbf{K}(t=1,x_1,\dots,x_n;l |l )\\
-=\biggl(\prod_{\,i\in\mathbf{n}}\hat x_i\biggr)
-\sum_{I\subseteq\mathbf{n}-\{l \}}
-(-1)^{\envert{I}}\per\mathbf{A}^{(\lambda)}(I|I)
-\det\mathbf{A}^{(\lambda)}
-(\overline I\cup\{l \}|\overline I\cup\{l \}).
-\label{sum-ali}
-\end{multline}
-\end{verbatim}
-
-By \eqref{H-cycles}, \eqref{detprod}, and \eqref{sum-bij}, we have
-\begin{prop}\label{prop:eg}
-\begin{equation}
-H_c=\frac1{2n}\sum^n_{l =0}(-1)^{l}
-D_{l},
-\end{equation}
-where
-\begin{equation}\label{delta-l}
-D_{l}=\eval[2]{\sum_{I_{l}\subseteq \mathbf{n}}
-D(t_1,\dots,t_n)}_{t_i=\left\{\begin{smallmatrix}
-0,& \text{if }i\in I_{l}\quad\\% \quad added for centering
-1,& \text{otherwise}\end{smallmatrix}\right.\;,\;\; i=1,\dots,n}.
-\end{equation}
-\end{prop}
-
-\section{Application}
-\label{lincomp}
-
-We consider here the applications of Theorems~\ref{th-info-ow-ow} and
-~\ref{th-weak-ske-owf} to a complete
-multipartite graph $K_{n_1\dots n_p}$. It can be shown that the
-number of spanning trees of $K_{n_1\dots n_p}$
-may be written
-\begin{equation}\label{e:st}
-T=n^{p-2}\prod^p_{i=1}
-(n-n_i)^{n_i-1}
-\end{equation}
-where
-\begin{equation}
-n=n_1+\dots+n_p.
-\end{equation}
-
-It follows from Theorems~\ref{th-info-ow-ow} and
-~\ref{th-weak-ske-owf} that
-\begin{equation}\label{e:barwq}
-\begin{split}
-H_c&=\frac1{2n}
-\sum^n_{{l}=0}(-1)^{l}(n-{l})^{p-2}
-\sum_{l _1+\dots+l _p=l}\prod^p_{i=1}
-\binom{n_i}{l _i}\\
-&\quad\cdot[(n-l )-(n_i-l _i)]^{n_i-l _i}\cdot
-\biggl[(n-l )^2-\sum^p_{j=1}(n_i-l _i)^2\biggr].\end{split}
-\end{equation}
-\begin{verbatim}
-... \binom{n_i}{l _i}\\
-\end{verbatim}
-and
-\begin{equation}\label{joe}
-\begin{split}
-H_c&=\frac12\sum^{n-1}_{l =0}
-(-1)^{l}(n-l )^{p-2}
-\sum_{l _1+\dots+l _p=l}
-\prod^p_{i=1}\binom{n_i}{l _i}\\
-&\quad\cdot[(n-l )-(n_i-l _i)]^{n_i-l _i}
-\left(1-\frac{l _p}{n_p}\right)
-[(n-l )-(n_p-l _p)].
-\end{split}
-\end{equation}
-
-The enumeration of $H_c$ in a $K_{n_1\dotsm n_p}$ graph can also be
-carried out by Theorem ~\ref{thm-H-param} or ~\ref{thm-asym}
-together with the algebraic method of \eqref{multdef}.
-Some elegant representations may be obtained. For example, $H_c$ in
-a $K_{n_1n_2n_3}$ graph may be written
-\begin{equation}\label{j:mark}
-\begin{split}
-H_c=&
-\frac{n_1!\,n_2!\,n_3!}
-{n_1+n_2+n_3}\sum_i\left[\binom{n_1}{i}
-\binom{n_2}{n_3-n_1+i}\binom{n_3}{n_3-n_2+i}\right.\\
-&+\left.\binom{n_1-1}{i}
-\binom{n_2-1}{n_3-n_1+i}
-\binom{n_3-1}{n_3-n_2+i}\right].\end{split}
-\end{equation}
-
-\section{Secret Key Exchanges}
-\label{SKE}
-
-Modern cryptography is fundamentally concerned with the problem of
-secure private communication.  A Secret Key Exchange is a protocol
-where Alice and Bob, having no secret information in common to start,
-are able to agree on a common secret key, conversing over a public
-channel.  The notion of a Secret Key Exchange protocol was first
-introduced in the seminal paper of Diffie and Hellman
-\cite{dihe:newdir}. \cite{dihe:newdir} presented a concrete
-implementation of a Secret Key Exchange protocol, dependent on a
-specific assumption (a variant on the discrete log), specially
-tailored to yield Secret Key Exchange. Secret Key Exchange is of
-course trivial if trapdoor permutations exist. However, there is no
-known implementation based on a weaker general assumption.
-
-The concept of an informationally one-way function was introduced
-in \cite{imlelu:oneway}. We give only an informal definition here:
-
-\begin{defn} A polynomial time
-computable function $f = \{f_k\}$ is informationally
-one-way if there is no probabilistic polynomial time algorithm which
-(with probability of the form $1 - k^{-e}$ for some $e > 0$)
-returns on input $y \in \{0,1\}^{k}$ a random element of $f^{-1}(y)$.
-\end{defn}
-In the non-uniform setting \cite{imlelu:oneway} show that these are not
-weaker than one-way functions:
-\begin{thm}[\cite{imlelu:oneway} (non-uniform)]
-\label{th-info-ow-ow}
-The existence of informationally one-way functions
-implies the existence of one-way functions.
-\end{thm}
-We will stick to the convention introduced above of saying
-``non-uniform'' before the theorem statement when the theorem
-makes use of non-uniformity. It should be understood that
-if nothing is said then the result holds for both the uniform and
-the non-uniform models.
-
-It now follows from \thmref{th-info-ow-ow} that
-
-\begin{thm}[non-uniform]\label{th-weak-ske-owf} Weak SKE
-implies the existence of a one-way function.
-\end{thm}
-
-More recently, the polynomial-time, interior point algorithms for linear
-programming have been extended to the case of convex quadratic programs
-\cite{moad:quadpro,ye:intalg}, certain linear complementarity problems
-\cite{komiyo:lincomp,miyoki:lincomp}, and the nonlinear complementarity
-problem \cite{komiyo:unipfunc}. The connection between these algorithms
-and the classical Newton method for nonlinear equations is well
-explained in \cite{komiyo:lincomp}.
-
-\section{Review}
-\label{computation}
-
-We begin our discussion with the following definition:
-
-\begin{defn}
-
-A function $H\colon \Re^n \to \Re^n$ is said to be
-\emph{B-differentiable} at the point $z$ if (i)~$H$ is Lipschitz
-continuous in a neighborhood of $z$, and (ii)~ there exists a positive
-homogeneous function $BH(z)\colon \Re^n \to \Re^n$, called the
-\emph{B-derivative} of $H$ at $z$, such that
-\[ \lim_{v \to 0} \frac{H(z+v) - H(z) - BH(z)v}{\enVert{v}} = 0. \]
-The function $H$ is \textit{B-differentiable in set $S$} if it is
-B-differentiable at every point in $S$. The B-derivative $BH(z)$ is said
-to be \textit{strong} if
-\[ \lim_{(v,v') \to (0,0)} \frac{H(z+v) - H(z+v') - BH(z)(v
- -v')}{\enVert{v - v'}} = 0. \]
-\end{defn}
-
-
-\begin{lem}\label{limbog} There exists a smooth function $\psi_0(z)$
-defined for $\abs{z}>1-2a$ satisfying the following properties\textup{:}
-\begin{enumerate}
-\renewcommand{\labelenumi}{(\roman{enumi})}
-\item $\psi_0(z)$ is bounded above and below by positive constants
-$c_1\leq \psi_0(z)\leq c_2$.
-\item If $\abs{z}>1$, then $\psi_0(z)=1$.
-\item For all $z$ in the domain of $\psi_0$, $\Delta_0\ln \psi_0\geq 0$.
-\item If $1-2a<\abs{z}<1-a$, then $\Delta_0\ln \psi_0\geq
-c_3>0$.
-\end{enumerate}
-\end{lem}
-
-\begin{proof}
-We choose $\psi_0(z)$ to be a radial function depending only on $r=\abs{z}$.
-Let $h(r)\geq 0$ be a suitable smooth function satisfying $h(r)\geq c_3$
-for $1-2a<\abs{z}<1-a$, and $h(r)=0$ for $\abs{z}>1-\tfrac a2$. The radial
-Laplacian
-\[\Delta_0\ln\psi_0(r)=\left(\frac {d^2}{dr^2}+\frac
-1r\frac d{dr}\right)\ln\psi_0(r)\]
-has smooth coefficients for $r>1-2a$. Therefore, we may
-apply the existence and uniqueness theory for ordinary differential
-equations. Simply let $\ln \psi_0(r)$ be the solution of the differential
-equation
-\[\left(\frac{d^2}{dr^2}+\frac 1r\frac d{dr}\right)\ln \psi_0(r)=h(r)\]
-with initial conditions given by $\ln \psi_0(1)=0$ and
-$\ln\psi_0'(1)=0$.
-
-Next, let $D_\nu$ be a finite collection of pairwise disjoint disks,
-all of which are contained in the unit disk centered at the origin in
-$C$. We assume that $D_\nu=\{z\mid \abs{z-z_\nu}<\delta\}$. Suppose that
-$D_\nu(a)$ denotes the smaller concentric disk $D_\nu(a)=\{z\mid
-\abs{z-z_\nu}\leq (1-2a)\delta\}$. We define a smooth weight function
-$\Phi_0(z)$ for $z\in C-\bigcup_\nu D_\nu(a)$ by setting $\Phi_
-0(z)=1$ when $z\notin \bigcup_\nu D_\nu$ and $\Phi_
-0(z)=\psi_0((z-z_\nu)/\delta)$ when $z$ is an element of $D_\nu$. It
-follows from \lemref{limbog} that $\Phi_ 0$ satisfies the properties:
-\begin{enumerate}
-\renewcommand{\labelenumi}{(\roman{enumi})}
-\item \label{boundab}$\Phi_ 0(z)$ is bounded above and below by
-positive constants $c_1\leq \Phi_ 0(z)\leq c_2$.
-\item \label{d:over}$\Delta_0\ln\Phi_ 0\geq 0$ for all
-$z\in C-\bigcup_\nu D_\nu(a)$,
-the domain where the function $\Phi_ 0$ is defined.
-\item \label{d:ad}$\Delta_0\ln\Phi_ 0\geq c_3\delta^{-2}$
-when $(1-2a)\delta<\abs{z-z_\nu}<(1-a)\delta$.
-\end{enumerate}
-Let $A_\nu$ denote the annulus $A_\nu=\{(1-2a)\delta<\abs{z-z_\nu}<(1-a)
-\delta \}$, and set $A=\bigcup_\nu A_\nu$. The
-properties (\ref{d:over}) and (\ref{d:ad}) of $\Phi_ 0$
-may be summarized as $\Delta_0\ln \Phi_ 0\geq c_3\delta^{-2}\chi_A$,
-where $\chi _A$ is the characteristic function of $A$.
-\end{proof}
-
-Suppose that $\alpha$ is a nonnegative real constant. We apply
-Proposition~\ref{prop:eg} with $\Phi(z)=\Phi_ 0(z) e^{\alpha\abs{z}^2}$. If
-$u\in C^\infty_0(R^2-\bigcup_\nu D_\nu(a))$, assume that $\mathcal{D}$
-is a bounded domain containing the support of $u$ and $A\subset
-\mathcal{D}\subset R^2-\bigcup_\nu D_\nu(a)$. A calculation gives
-\[\int_{\mathcal{D}}\abs{\overline\partial u}^2\Phi_ 0(z) e^{\alpha\abs{z}^2}
-\geq c_4\alpha\int_{\mathcal{D}}\abs{u}^2\Phi_ 0e^{\alpha\abs{z}^2}
-+c_5\delta^{-2}\int_ A\abs{u}^2\Phi_ 0e^{\alpha\abs{z}^2}.\]
-
-The boundedness, property (\ref{boundab}) of $\Phi_ 0$, then yields
-\[\int_{\mathcal{D}}\abs{\overline\partial u}^2e^{\alpha\abs{z}^2}\geq c_6\alpha
-\int_{\mathcal{D}}\abs{u}^2e^{\alpha\abs{z}^2}
-+c_7\delta^{-2}\int_ A\abs{u}^2e^{\alpha\abs{z}^2}.\]
-
-Let $B(X)$ be the set of blocks of $\Lambda_{X}$
-and let $b(X) = \abs{B(X)}$. If $\phi \in Q_{X}$ then
-$\phi$ is constant on the blocks of $\Lambda_{X}$.
-\begin{equation}\label{far-d}
- P_{X} = \{ \phi \in M \mid \Lambda_{\phi} = \Lambda_{X} \},
-\qquad
-Q_{X} = \{\phi \in M \mid \Lambda_{\phi} \geq \Lambda_{X} \}.
-\end{equation}
-If $\Lambda_{\phi} \geq \Lambda_{X}$ then
-$\Lambda_{\phi} = \Lambda_{Y}$ for some $Y \geq X$ so that
-\[ Q_{X} = \bigcup_{Y \geq X} P_{Y}. \]
-Thus by M\"obius inversion
-\[ \abs{P_{Y}}= \sum_{X\geq Y} \mu (Y,X)\abs{Q_{X}}.\]
-Thus there is a bijection from $Q_{X}$ to $W^{B(X)}$.
-In particular $\abs{Q_{X}} = w^{b(X)}$.
-
-Next note that $b(X)=\dim X$. We see this by choosing a
-basis for $X$ consisting of vectors $v^{k}$ defined by
-\[v^{k}_{i}=
-\begin{cases} 1 & \text{if $i \in \Lambda_{k}$},\\
-0 &\text{otherwise.} \end{cases}
-\]
-\begin{verbatim}
-\[v^{k}_{i}=
-\begin{cases} 1 & \text{if $i \in \Lambda_{k}$},\\
-0 &\text{otherwise.} \end{cases}
-\]
-\end{verbatim}
-
-\begin{lem}\label{p0201}
-Let $\A$ be an arrangement. Then
-\[ \chi (\A,t) = \sum_{\B \subseteq \A}
-(-1)^{\abs{\B}} t^{\dim T(\B)}. \]
-\end{lem}
-
-In order to compute $R''$ recall the definition
-of $S(X,Y)$ from \lemref{lem-per}. Since $H \in \B$,
-$\A_{H} \subseteq \B$. Thus if $T(\B) = Y$ then
-$\B \in S(H,Y)$. Let $L'' = L(\A'')$. Then
-\begin{equation}\label{E_SXgYy}
-\begin{split}
-R''&= \sum_{H\in \B \subseteq \A} (-1)^{\abs{\B}}
-t^{\dim T(\B)}\\
-&= \sum_{Y \in L''} \sum_{\B \in S(H,Y)}
-(-1)^{\abs{\B}}t^{\dim Y} \\
-&= -\sum_{Y \in L''} \sum_{\B \in S(H,Y)} (-1)^
-{\abs{\B - \A_{H}}} t^{\dim Y} \\
-&= -\sum_{Y \in L''} \mu (H,Y)t^{\dim Y} \\
-&= -\chi (\A '',t).
-\end{split}
-\end{equation}
-
-\begin{cor}\label{tripleA}
-Let $(\A,\A',\A'')$ be a triple of arrangements. Then
-\[ \pi (\A,t) = \pi (\A',t) + t \pi (\A'',t). \]
-\end{cor}
-
-\begin{defn}
-Let $(\A,\A',\A'')$ be a triple with respect to
-the hyperplane $H \in \A$. Call $H$ a \textit{separator}
-if $T(\A) \not\in L(\A')$.
-\end{defn}
-
-\begin{cor}\label{nsep}
-Let $(\A,\A',\A'')$ be a triple with respect to $H \in \A$.
-\begin{enumerate}
-\renewcommand{\labelenumi}{(\roman{enumi})}
-\item
-If $H$ is a separator then
-\[ \mu (\A) = - \mu (\A'') \]
-and hence
-\[ \abs{\mu (\A)} = \abs{ \mu (\A'')}. \]
-
-\item If $H$ is not a separator then
-\[\mu (\A) = \mu (\A') - \mu (\A'') \]
-and
-\[ \abs{\mu (\A)} = \abs{\mu (\A')} + \abs{\mu (\A'')}. \]
-\end{enumerate}
-\end{cor}
-
-\begin{proof}
-It follows from \thmref{th-info-ow-ow} that $\pi(\A,t)$
-has leading term
-\[(-1)^{r(\A)}\mu (\A)t^{r(\A)}.\]
-The conclusion
-follows by comparing coefficients of the leading
-terms on both sides of the equation in
-Corollary~\ref{tripleA}. If $H$ is a separator then
-$r(\A') < r(\A)$ and there is no contribution
-from $\pi (\A',t)$.
-\end{proof}
-
-The Poincar\'e polynomial of an arrangement
-will appear repeatedly
-in these notes. It will be shown to equal the
-Poincar\'e polynomial
-of the graded algebras which we are going to
-associate with $\A$. It is also the Poincar\'e
-polynomial of the complement $M(\A)$ for a
-complex arrangement. Here we prove
-that the Poincar\'e polynomial is the chamber
-counting function for a real arrangement. The
-complement $M(\A)$ is a disjoint union of chambers
-\[M(\A) = \bigcup_{C \in \Cham(\A)} C.\]
-The number
-of chambers is determined by the Poincar\'e
-polynomial as follows.
-
-\begin{thm}\label{th-realarr}
-Let $\A_{\mathbf{R}}$ be a real arrangement. Then
-\[ \abs{\Cham(\A_{\mathbf{R}})} = \pi (\A_{\mathbf{R}},1). \]
-\end{thm}
-
-\begin{proof}
-We check the properties required in Corollary~\ref{nsep}:
-(i) follows from $\pi (\Phi_{ l},t) = 1$, and (ii) is a
-consequence of Corollary~\ref{BI}.
-\end{proof}
-
-\begin{figure}
-\vspace{5cm}
-\caption[]{$Q(\A_{1}) = xyz(x-z)(x+z)(y-z)(y+z)$}
-\end{figure}
-
-\begin{figure}
-\vspace{5cm}
-\caption[]{$Q(\A_{2})= xyz(x+y+z)(x+y-z)(x-y+z)(x-y-z)$}
-\end{figure}
-
-
-\begin{thm}
-\label{T_first_the_int}
-Let $\phi$ be a protocol for a random pair $\XcY$.
-If one of $\st_\phi(x',y)$ and $\st_\phi(x,y')$ is a prefix of the other
-and $(x,y)\in\SXY$, then
-\[
-\langle \st_j(x',y)\rangle_{j=1}^\infty
-=\langle \st_j(x,y)\rangle_{j=1}^\infty
-=\langle \st_j(x,y')\rangle_{j=1}^\infty .
-\]
-\end{thm}
-\begin{proof}
-We show by induction on $i$ that
-\[
-\langle \st_j(x',y)\rangle_{j=1}^i
-=\langle \st_j(x,y)\rangle_{j=1}^i
-=\langle \st_j(x,y')\rangle_{j=1}^i.
-\]
-The induction hypothesis holds vacuously for $i=0$. Assume it holds for
-$i-1$, in particular
-$[\st_j(x',y)]_{j=1}^{i-1}=[\st_j(x,y')]_{j=1}^{i-1}$. Then one of
-$[\st_j(x',y)]_{j=i}^{\infty}$ and $[\st_j(x,y')]_{j=i}^{\infty}$ is a
-prefix of the other which implies that one of $\st_i(x',y)$ and
-$\st_i(x,y')$ is a prefix of the other. If the $i$th message is
-transmitted by $P_\X$ then, by the separate-transmissions property and
-the induction hypothesis, $\st_i(x,y)=\st_i(x,y')$, hence one of
-$\st_i(x,y)$ and $\st_i(x',y)$ is a prefix of the other. By the
-implicit-termination property, neither $\st_i(x,y)$ nor $\st_i(x',y)$
-can be a proper prefix of the other, hence they must be the same and
-$\st_i(x',y)=\st_i(x,y)=\st_i(x,y')$. If the $i$th message is
-transmitted by $\PY$ then, symmetrically, $\st_i(x,y)=\st_i(x',y)$ by
-the induction hypothesis and the separate-transmissions property, and,
-then, $\st_i(x,y)=\st_i(x,y')$ by the implicit-termination property,
-proving the induction step.
-\end{proof}
-
-If $\phi$ is a protocol for $(X,Y)$, and $(x,y)$, $(x',y)$ are distinct
-inputs in $\SXY$, then, by the correct-decision property,
-$\langle\st_j(x,y)\rangle_{j=1}^\infty\ne\langle
-\st_j(x',y)\rangle_{j=1}^\infty$.
-
-Equation~(\ref{E_SXgYy}) defined $\PY$'s ambiguity set $\SXgYy$
-to be the set of possible $X$ values when $Y=y$.
-The last corollary implies that for all $y\in\SY$,
-the multiset%
-\footnote{A multiset allows multiplicity of elements.
-Hence, $\{0,01,01\}$ is prefix free as a set, but not as a multiset.}
-of codewords $\{\st_\phi(x,y):x\in\SXgYy\}$ is prefix free.
-
-\section{One-Way Complexity}
-\label{S_Cp1}
-
-$\Cw1$, the one-way complexity of a random pair $\XcY$,
-is the number of bits $P_\X$ must transmit in the worst case
-when $\PY$ is not permitted to transmit any feedback messages.
-Starting with $\SXY$, the support set of $\XcY$, we define $\G$,
-the \textit{characteristic hypergraph} of $\XcY$, and show that
-\[
-\Cw1=\lceil\,\log\chi(\G)\rceil\ .
-\]
-
-Let $\XcY$ be a random pair. For each $y$ in $\SY$, the support set of
-$Y$, Equation~(\ref{E_SXgYy}) defined $\SXgYy$ to be the set of possible
-$x$ values when $Y=y$. The \textit{characteristic hypergraph} $\G$ of
-$\XcY$ has $\SX$ as its vertex set and the hyperedge $\SXgYy$ for each
-$y\in\SY$.
-
-
-We can now prove a continuity theorem.
-\begin{thm}\label{t:conl}
-Let $\Omega \subset\mathbf{R}^n$ be an open set, let
-$u\in BV(\Omega ;\mathbf{R}^m)$, and let
-\begin{equation}\label{quts}
-T^u_x=\left\{y\in\mathbf{R}^m:
- y=\tilde u(x)+\left\langle \frac{Du}{\abs{Du}}(x),z
-\right\rangle \text{ for some }z\in\mathbf{R}^n\right\}
-\end{equation}
-for every $x\in\Omega \backslash S_u$. Let $f\colon \mathbf{R}^m\to
-\mathbf{R}^k$ be a Lipschitz continuous function such that $f(0)=0$, and
-let $v=f(u)\colon \Omega \to \mathbf{R}^k$. Then $v\in BV(\Omega
-;\mathbf{R}^k)$ and
-\begin{equation}
-Jv=\eval{(f(u^+)-f(u^-))\otimes \nu_u\cdot\,
-\mathcal{H}_{n-1}}_{S_u}.
-\end{equation}
-In addition, for $\abs{\wt{D}u}$-almost every $x\in\Omega $ the
-restriction of the function $f$ to $T^u_x$ is differentiable at $\tilde
-u(x)$ and
-\begin{equation}
-\wt{D}v=\nabla (\eval{f}_{T^u_x})(\tilde u)
-\frac{\wt{D}u}{\abs{\wt{D}u}}\cdot\abs{\wt{D}u}.\end{equation}
-\end{thm}
-
-Before proving the theorem, we state without proof three elementary
-remarks which will be useful in the sequel.
-\begin{rem}\label{r:omb}
-Let $\omega\colon \left]0,+\infty\right[\to \left]0,+\infty\right[$
-be a continuous function such that $\omega (t)\to 0$ as $t\to
-0$. Then
-\[\lim_{h\to 0^+}g(\omega(h))=L\Leftrightarrow\lim_{h\to
-0^+}g(h)=L\]
-for any function $g\colon \left]0,+\infty\right[\to \mathbf{R}$.
-\end{rem}
-\begin{rem}\label{r:dif}
-Let $g \colon  \mathbf{R}^n\to \mathbf{R}$ be a Lipschitz
-continuous function and assume that
-\[L(z)=\lim_{h\to 0^+}\frac{g(hz)-g(0)}h\]
-exists for every $z\in\mathbf{Q}^n$ and that $L$ is a linear function of
-$z$. Then $g$ is differentiable at 0.
-\end{rem}
-\begin{rem}\label{r:dif0}
-Let $A \colon \mathbf{R}^n\to \mathbf{R}^m$ be a linear function, and
-let $f \colon \mathbf{R}^m\to \mathbf{R}$ be a function. Then the
-restriction of $f$ to the range of $A$ is differentiable at 0 if and
-only if $f(A)\colon \mathbf{R}^n\to \mathbf{R}$ is differentiable at 0
-and
-\[\nabla(\eval{f}_{\IM(A)})(0)A=\nabla (f(A))(0).\]
-\end{rem}
-
-\begin{proof}
- We begin by showing that $v\in BV(\Omega;\mathbf{R}^k)$ and
-\begin{equation}\label{e:bomb}
-\abs{Dv}(B)\le K\abs{Du}(B)\qquad\forall B\in\mathbf{B}(\Omega ),
-\end{equation}
-where $K>0$ is the Lipschitz constant of $f$. By \eqref{sum-Di} and by
-the approximation result quoted in \secref{s:mt}, it is possible to find
-a sequence $(u_h)\subset C^1(\Omega ;\mathbf{R}^m)$ converging to $u$ in
-$L^1(\Omega ;\mathbf{R}^m)$ and such that
-\[\lim_{h\to +\infty}\int_\Omega \abs{\nabla u_h}\,dx=\abs{Du}(\Omega ).\]
-The functions $v_h=f(u_h)$ are locally Lipschitz continuous in $\Omega
-$, and the definition of differential implies that $\abs{\nabla v_h}\le
-K\abs{\nabla u_h}$ almost everywhere in $\Omega $. The lower semicontinuity
-of the total variation and \eqref{sum-Di} yield
-\begin{equation}
-\begin{split}
-\abs{Dv}(\Omega )\le\liminf_{h\to +\infty}\abs{Dv_h}(\Omega) &
-=\liminf_{h\to +\infty}\int_\Omega \abs{\nabla v_h}\,dx\\
-&\le K\liminf_{h\to +\infty}\int_\Omega
-\abs{\nabla u_h}\,dx=K\abs{Du}(\Omega).
-\end{split}\end{equation}
-Since $f(0)=0$, we have also
-\[\int_\Omega \abs{v}\,dx\le K\int_\Omega \abs{u}\,dx;\]
-therefore $u\in BV(\Omega ;\mathbf{R}^k)$. Repeating the same argument
-for every open set $A\subset\Omega $, we get \eqref{e:bomb} for every
-$B\in\mathbf{B}(\Omega)$, because $\abs{Dv}$, $\abs{Du}$ are Radon measures. To
-prove \lemref{limbog}, first we observe that
-\begin{equation}\label{e:SS}
-S_v\subset S_u,\qquad\tilde v(x)=f(\tilde u(x))\qquad \forall x\in\Omega
-\backslash S_u.\end{equation}
-In fact, for every $\varepsilon >0$ we have
-\[\{y\in B_\rho(x): \abs{v(y)-f(\tilde u(x))}>\varepsilon \}\subset \{y\in
-B_\rho(x): \abs{u(y)-\tilde u(x)}>\varepsilon /K\},\]
-hence
-\[\lim_{\rho\to 0^+}\frac{\abs{\{y\in B_\rho(x): \abs{v(y)-f(\tilde u(x))}>
-\varepsilon \}}}{\rho^n}=0\]
-whenever $x\in\Omega \backslash S_u$. By a similar argument, if $x\in
-S_u$ is a point such that there exists a triplet $(u^+,u^-,\nu_u)$
-satisfying \eqref{detK1}, \eqref{detK2}, then
-\[
-(v^+(x)-v^-(x))\otimes \nu_v=(f(u^+(x))-f(u^-(x)))\otimes\nu_u\quad
-\text{if }x\in S_v
-\]
-and $f(u^-(x))=f(u^+(x))$ if $x\in S_u\backslash S_v$. Hence, by (1.8)
-we get
-\begin{equation*}\begin{split}
-Jv(B)=\int_{B\cap S_v}(v^+-v^-)\otimes \nu_v\,d\mathcal{H}_{n-1}&=
-\int_{B\cap S_v}(f(u^+)-f(u^-))\otimes \nu_u\,d\mathcal{H}_{n-1}\\
-&=\int_{B\cap S_u}(f(u^+)-f(u^-))\otimes \nu_u\,d\mathcal{H}_{n-1}
-\end{split}\end{equation*}
-and \lemref{limbog} is proved.
-\end{proof}
-
-To prove \eqref{e:SS}, it is not restrictive to assume that $k=1$.
-Moreover, to simplify our notation, from now on we shall assume that
-$\Omega = \mathbf{R}^n$. The proof of \eqref{e:SS} is divided into two
-steps. In the first step we prove the statement in the one-dimensional
-case $(n=1)$, using \thmref{th-weak-ske-owf}. In the second step we
-achieve the general result using \thmref{t:conl}.
-
-\subsection*{Step 1}
-Assume that $n=1$. Since $S_u$ is at most countable, \eqref{sum-bij}
-yields that $\abs{\wt{D}v}(S_u\backslash S_v)=0$, so that
-\eqref{e:st} and \eqref{e:barwq} imply that $Dv=\wt{D}v+Jv$ is
-the Radon-Nikod\'ym decomposition of $Dv$ in absolutely continuous and
-singular part with respect to $\abs{\wt{D} u}$. By
-\thmref{th-weak-ske-owf}, we have
-\begin{equation*}
-\frac{\wt{D}v}{\abs{\wt{D}u}}(t)=\lim_{s\to t^+}
-\frac{Dv(\interval{\left[t,s\right[})}
-{\abs{\wt{D}u}(\interval{\left[t,s\right[})},\qquad
-\frac{\wt{D}u}{\abs{\wt{D}u}}(t)=\lim_{s\to t^+}
-\frac{Du(\interval{\left[t,s\right[})}
-{\abs{\wt{D}u}(\interval{\left[t,s\right[})}
-\end{equation*}
-$\abs{\wt{D}u}$-almost everywhere in $\mathbf{R}$. It is well known
-(see, for instance, \cite[2.5.16]{ste:sint}) that every one-dimensional
-function of bounded variation $w$ has a unique left continuous
-representative, i.e., a function $\hat w$ such that $\hat w=w$ almost
-everywhere and $\lim_{s\to t^-}\hat w(s)=\hat w(t)$ for every $t\in
-\mathbf{R}$. These conditions imply
-\begin{equation}
-\hat u(t)=Du(\interval{\left]-\infty,t\right[}),
-\qquad \hat v(t)=Dv(\interval{\left]-\infty,t\right[})\qquad
-\forall t\in\mathbf{R}
-\end{equation}
-and
-\begin{equation}\label{alimo}
-\hat v(t)=f(\hat u(t))\qquad\forall t\in\mathbf{R}.\end{equation}
-Let $t\in\mathbf{R}$ be such that
-$\abs{\wt{D}u}(\interval{\left[t,s\right[})>0$ for every $s>t$ and
-assume that the limits in \eqref{joe} exist. By \eqref{j:mark} and
-\eqref{far-d} we get
-\begin{equation*}\begin{split}
-\frac{\hat v(s)-\hat
-v(t)}{\abs{\wt{D}u}(\interval{\left[t,s\right[})}&=\frac {f(\hat
-u(s))-f(\hat u(t))}{\abs{\wt{D}u}(\interval{\left[t,s\right[})}\\
-&=\frac{f(\hat u(s))-f(\hat
-u(t)+\dfrac{\wt{D}u}{\abs{\wt{D}u}}(t)\abs{\wt{D}u
-}(\interval{\left[t,s\right[}))}%
-{\abs{\wt{D}u}(\interval{\left[t,s\right[})}\\
-&+\frac
-{f(\hat u(t)+\dfrac{\wt{D}u}{\abs{\wt{D}u}}(t)\abs{\wt{D}
-u}(\interval{\left[t,s\right[}))-f(\hat
-u(t))}{\abs{\wt{D}u}(\interval{\left[t,s\right[})}
-\end{split}\end{equation*}
-for every $s>t$. Using the Lipschitz condition on $f$ we find
-{\setlength{\multlinegap}{0pt}
-\begin{multline*}
-\left\lvert\frac{\hat v(s)-\hat
-v(t)}{\abs{\wt{D}u}(\interval{\left[t,s\right[})} -\frac{f(\hat
-u(t)+\dfrac{\wt{D}u}{\abs{\wt{D}u}}(t)
-\abs{\wt{D}u}(\interval{\left[t,s\right[}))-f(\hat
-u(t))}{\abs{\wt{D}u}(\interval{\left[t,s\right[})}\right\rvert\\
-\le K\left\lvert
-\frac{\hat u(s)-\hat u(t)}
-  {\abs{\wt{D}u}(\interval{\left[t,s\right[})}
--\frac{\wt{D}u}{\abs{
-\wt{D}u}}(t)\right\rvert.\end{multline*}
-}% end of group with \multlinegap=0pt
-By \eqref{e:bomb}, the function $s\to
-\abs{\wt{D}u}(\interval{\left[t,s\right[})$ is continuous and
-converges to 0 as $s\downarrow t$. Therefore Remark~\ref{r:omb} and the
-previous inequality imply
-\[\frac{\wt{D}v}{\abs{\wt{D}u}}(t)=\lim_{h\to 0^+}
-\frac{f(\hat u(t)+h\dfrac{\wt{D}u}{\abs{\wt{D}u}}
-(t))-f(\hat u(t))}h\quad\abs{\wt{D}u}\text{-a.e. in }\mathbf{R}.\]
-By \eqref{joe}, $\hat u(x)=\tilde u(x)$ for every
-$x\in\mathbf{R}\backslash S_u$; moreover, applying the same argument to
-the functions $u'(t)=u(-t)$, $v'(t)=f(u'(t))=v(-t)$, we get
-\[\frac{\wt{D}v}{\abs{\wt{D}u}}(t)=\lim_{h\to 0}
-\frac{f(\tilde u(t)
-+h\dfrac{\wt{D}u}{\abs{\wt{D}u}}(t))-f(\tilde u(t))}{h}
-\qquad\abs{\wt{D}u}\text{-a.e. in }\mathbf{R}\]
-and our statement is proved.
-
-\subsection*{Step 2}
-
-Let us consider now the general case $n>1$. Let $\nu\in \mathbf{R}^n$ be
-such that $\abs{\nu}=1$, and let $\pi_\nu=\{y\in\mathbf{R}^n: \langle
-y,\nu\rangle =0\}$. In the following, we shall identify $\mathbf{R}^n$
-with $\pi_\nu\times\mathbf{R}$, and we shall denote by $y$ the variable
-ranging in $\pi_\nu$ and by $t$ the variable ranging in $\mathbf{R}$. By
-the just proven one-dimensional result, and by \thmref{thm-main}, we get
-\[\lim_{h\to 0}\frac{f(\tilde u(y+t\nu)+h\dfrac{\wt{D}u_y}{\abs{
-\wt{D}u_y}}(t))-f(\tilde u(y+t\nu))}h=\frac{\wt{D}v_y}{\abs{
-\wt{D}u_y}}(t)\qquad\abs{\wt{D}u_y}\text{-a.e. in }\mathbf{R}\]
-for $\mathcal{H}_{n-1}$-almost every $y\in \pi_\nu$. We claim that
-\begin{equation}
-\frac{\langle \wt{D}u,\nu\rangle }{\abs{\langle \wt{D}u,\nu\rangle
-}}(y+t\nu)=\frac{\wt{D}u_y}
-{\abs{\wt{D}u_y}}(t)\qquad\abs{\wt{D}u_y}\text{-a.e. in }\mathbf{R}
-\end{equation}
-for $\mathcal{H}_{n-1}$-almost every $y\in\pi_\nu$. In fact, by
-\eqref{sum-ali} and \eqref{delta-l} we get
-\begin{multline*}
-\int_{\pi_\nu}\frac{\wt{D}u_y}{\abs{\wt{D}u_y}}\cdot\abs{\wt{D}u_y
-}\,d\mathcal{H}_{n-1}(y)=\int_{\pi_\nu}\wt{D}u_y\,d\mathcal{H}_{n-1}(y)\\
-=\langle \wt{D}u,\nu\rangle =\frac
-{\langle \wt{D}u,\nu\rangle }{\abs{\langle \wt{D}u,\nu\rangle}}\cdot
-\abs{\langle \wt{D}u,\nu\rangle }=\int_{\pi_\nu}\frac{
-\langle \wt{D}u,\nu\rangle }{\abs{\langle \wt{D}u,\nu\rangle }}
-(y+\cdot \nu)\cdot\abs{\wt{D}u_y}\,d\mathcal{H}_{n-1}(y)
-\end{multline*}
-and \eqref{far-d} follows from \eqref{sum-Di}. By the same argument it
-is possible to prove that
-\begin{equation}
-\frac{\langle \wt{D}v,\nu\rangle }{\abs{\langle \wt{D}u,\nu\rangle
-}}(y+t\nu)=\frac{\wt{D}v_y}{\abs{\wt{D}u_y}}(t)\qquad\abs{
-\wt{D}u_y}\text{-a.e. in }\mathbf{R}\end{equation}
-for $\mathcal{H}_{n-1}$-almost every $y\in \pi_\nu$. By \eqref{far-d}
-and \eqref{E_SXgYy} we get
-\[
-\lim_{h\to 0}\frac{f(\tilde u(y+t\nu)+h\dfrac{\langle \wt{D}
-u,\nu\rangle }{\abs{\langle \wt{D}u,\nu\rangle }}(y+t\nu))-f(\tilde
-u(y+t\nu))}{h}
-=\frac{\langle \wt{D}v,\nu\rangle }{\abs{\langle
-\wt{D}u,\nu\rangle }}(y+t\nu)\]
-for $\mathcal{H}_{n-1}$-almost every $y\in\pi_\nu$, and using again
-\eqref{detK1}, \eqref{detK2} we get
-\[
-\lim_{h\to 0}\frac{f(\tilde u(x)+h\dfrac{\langle
-\wt{D}u,\nu\rangle }{\abs{\langle \wt{D}u,\nu\rangle }}(x))-f(\tilde
-u(x))}{h}=\frac{\langle \wt{D}v,\nu\rangle }{\abs{\langle \wt{D}u,\nu
-\rangle }}(x)
-\]
-$\abs{\langle \wt{D}u,\nu\rangle}$-a.e. in $\mathbf{R}^n$.
-
-Since the function $\abs{\langle \wt{D}u,\nu\rangle }/\abs{\wt{D}u}$
-is strictly positive $\abs{\langle \wt{D}u,\nu\rangle }$-almost everywhere,
-we obtain also
-\begin{multline*}
-\lim_{h\to 0}\frac{f(\tilde u(x)+h\dfrac{\abs{\langle
-\wt{D}u,\nu\rangle }}{\abs{\wt{D}u}}(x)\dfrac{\langle \wt{D}
-u,\nu\rangle }{\abs{\langle \wt{D}u,\nu\rangle }}(x))-f(\tilde u(x))}{h}\\
-=\frac{\abs{\langle \wt{D}u,\nu\rangle }}{\abs{\wt{D}u}}(x)\frac
-{\langle \wt{D}v,\nu\rangle }{\abs{\langle
-\wt{D}u,\nu\rangle }}(x)
-\end{multline*}
-$\abs{\langle \wt{D}u,\nu\rangle }$-almost everywhere in $\mathbf{R}^n$.
-
-Finally, since
-\begin{align*}
-&\frac{\abs{\langle \wt{D}u,\nu\rangle }}{\abs{\wt{D}u}}
-\frac{\langle \wt{D}u,\nu\rangle }{\abs{\langle \wt{D}u,\nu\rangle}}
-=\frac{\langle \wt{D}u,\nu\rangle }{\abs{\wt{D}u}}
-=\left\langle \frac{\wt{D}u}{\abs{\wt{D}u}},\nu\right\rangle
-        \qquad\abs{\wt{D}u}\text{-a.e. in }\mathbf{R}^n\\
-&\frac{\abs{\langle \wt{D}u,\nu\rangle }}{\abs{\wt{D}u}}
-\frac{\langle \wt{D}v,\nu\rangle }{\abs{\langle \wt{D}u,\nu\rangle}}
-=\frac{\langle \wt{D}v,\nu\rangle }{\abs{\wt{D}u}}
-=\left\langle \frac{\wt{D}v}{\abs{\wt{D}u}},\nu\right\rangle
-        \qquad\abs{\wt{D}u}\text{-a.e. in }\mathbf{R}^n
-\end{align*}
-and since both sides of \eqref{alimo}
-are zero $\abs{\wt{D}u}$-almost everywhere
-on $\abs{\langle \wt{D}u,\nu\rangle }$-negligible sets, we conclude that
-\[
-\lim_{h\to 0}\frac{f\left(
-\tilde u(x)+h\left\langle \dfrac{\wt{D}
-u}{\abs{\wt{D}u}}(x),\nu\right\rangle \right)-f(\tilde u(x))}h
-=\left\langle \frac{\wt{D}v}{\abs{\wt{D}u}}(x),\nu\right\rangle,
-\]
-$\abs{\wt{D}u}$-a.e. in $\mathbf{R}^n$.
-Since $\nu$ is arbitrary, by Remarks \ref{r:dif} and~\ref{r:dif0}
-the restriction of $f$ to
-the affine space $T^u_x$ is differentiable at $\tilde u(x)$ for $\abs{\wt{D}
-u}$-almost every $x\in \mathbf{R}^n$ and \eqref{quts} holds.\qed
-
-It follows from \eqref{sum-Di}, \eqref{detK1}, and \eqref{detK2} that
-\begin{equation}\label{Dt}
-D(t_1,\dots,t_n)=\sum_{I\in\mathbf{n}}(-1)^{\abs{I}-1}\abs{I}
-\prod_{i\in I}t_i\prod_{j\in I}(D_j+\lambda_jt_j)\det\mathbf{A}^{(\lambda)}
-(\overline I|\overline I).
-\end{equation}
-Let $t_i=\hat x_i$, $i=1,\dots,n$. Lemma 1 leads to
-\begin{equation}\label{Dx}
-D(\hat x_1,\dots,\hat x_n)=\prod_{i\in\mathbf{n}}\hat x_i
-\sum_{I\in\mathbf{n}}(-1)^{\abs{I}-1}\abs{I}\per \mathbf{A}
-^{(\lambda)}(I|I)\det\mathbf{A}^{(\lambda)}(\overline I|\overline I).
-\end{equation}
-By \eqref{H-cycles}, \eqref{sum-Di}, and \eqref{Dx},
-we have the following result:
-\begin{thm}\label{thm-H-param}
-\begin{equation}\label{H-param}
-H_c=\frac{1}{2n}\sum^n_{l =1}l (-1)^{l -1}A_{l}
-^{(\lambda)},
-\end{equation}
-where
-\begin{equation}\label{A-l-lambda}
-A^{(\lambda)}_l =\sum_{I_l \subseteq\mathbf{n}}\per \mathbf{A}
-^{(\lambda)}(I_l |I_l )\det\mathbf{A}^{(\lambda)}
-(\overline I_{l}|\overline I_l ),\abs{I_{l}}=l .
-\end{equation}
-\end{thm}
-
-It is worth noting that $A_l ^{(\lambda)}$ of \eqref{A-l-lambda} is
-similar to the coefficients $b_l $ of the characteristic polynomial of
-\eqref{bl-sum}. It is well known in graph theory that the coefficients
-$b_l $ can be expressed as a sum over certain subgraphs. It is
-interesting to see whether $A_l $, $\lambda=0$, structural properties
-of a graph.
-
-We may call \eqref{H-param} a parametric representation of $H_c$. In
-computation, the parameter $\lambda_i$ plays very important roles. The
-choice of the parameter usually depends on the properties of the given
-graph. For a complete graph $K_n$, let $\lambda_i=1$, $i=1,\dots,n$.
-It follows from \eqref{A-l-lambda} that
-\begin{equation}\label{compl-gr}
-A^{(1)}_l =\begin{cases} n!,&\text{if }l =1\\
-0,&\text{otherwise}.\end{cases}
-\end{equation}
-By \eqref{H-param}
-\begin{equation}
-H_c=\frac 12(n-1)!.
-\end{equation}
-For a complete bipartite graph $K_{n_1n_2}$, let $\lambda_i=0$, $i=1,\dots,n$.
-By \eqref{A-l-lambda},
-\begin{equation}
-A_l =
-\begin{cases} -n_1!n_2!\delta_{n_1n_2},&\text{if }l =2\\
-0,&\text{otherwise }.\end{cases}
-\label{compl-bip-gr}
-\end{equation}
-Theorem ~\ref{thm-H-param}
-leads to
-\begin{equation}
-H_c=\frac1{n_1+n_2}n_1!n_2!\delta_{n_1n_2}.
-\end{equation}
-
-Now, we consider an asymmetrical approach. Theorem \ref{thm-main} leads to
-\begin{multline}
-\det\mathbf{K}(t=1,t_1,\dots,t_n;l |l )\\
-=\sum_{I\subseteq\mathbf{n}-\{l \}}
-(-1)^{\abs{I}}\prod_{i\in I}t_i\prod_{j\in I}
-(D_j+\lambda_jt_j)\det\mathbf{A}^{(\lambda)}
-(\overline I\cup\{l \}|\overline I\cup\{l \}).
-\end{multline}
-
-By \eqref{H-cycles} and \eqref{sum-ali} we have the following asymmetrical
-result:
-\begin{thm}\label{thm-asym}
-\begin{equation}
-H_c=\frac12\sum_{I\subseteq\mathbf{n}-\{l \}}
-(-1)^{\abs{I}}\per\mathbf{A}^{(\lambda)}(I|I)\det
-\mathbf{A}^{(\lambda)}
-(\overline I\cup\{l \}|\overline I\cup\{l \})
-\end{equation}
-which reduces to Goulden--Jackson's formula when $\lambda_i=0,i=1,\dots,n$
-\cite{mami:matrixth}.
-\end{thm}
-
-\section{Various font features of the \pkg{amsmath} package}
-\label{s:font}
-\subsection{Bold versions of special symbols}
-
-In the \pkg{amsmath} package \cn{boldsymbol} is used for getting
-individual bold math symbols and bold Greek letters---everything in
-math except for letters of the Latin alphabet,
-where you'd use \cn{mathbf}.  For example,
-\begin{verbatim}
-A_\infty + \pi A_0 \sim
-\mathbf{A}_{\boldsymbol{\infty}} \boldsymbol{+}
-\boldsymbol{\pi} \mathbf{A}_{\boldsymbol{0}}
-\end{verbatim}
-looks like this:
-\[A_\infty + \pi A_0 \sim \mathbf{A}_{\boldsymbol{\infty}}
-\boldsymbol{+} \boldsymbol{\pi} \mathbf{A}_{\boldsymbol{0}}\]
-
-\subsection{``Poor man's bold''}
-If a bold version of a particular symbol doesn't exist in the
-available fonts,
-then \cn{boldsymbol} can't be used to make that symbol bold.
-At the present time, this means that
-\cn{boldsymbol} can't be used with symbols from
-the \fn{msam} and \fn{msbm} fonts, among others.
-In some cases, poor man's bold (\cn{pmb}) can be used instead
-of \cn{boldsymbol}:
-%  Can't show example from msam or msbm because this document is
-%  supposed to be TeXable even if the user doesn't have
-%  AMSFonts.  MJD 5-JUL-1990
-\[\frac{\partial x}{\partial y}
-\pmb{\bigg\vert}
-\frac{\partial y}{\partial z}\]
-\begin{verbatim}
-\[\frac{\partial x}{\partial y}
-\pmb{\bigg\vert}
-\frac{\partial y}{\partial z}\]
-\end{verbatim}
-So-called ``large operator'' symbols such as $\sum$ and $\prod$
-require an additional command, \cn{mathop},
-to produce proper spacing and limits when \cn{pmb} is used.
-For further details see \textit{The \TeX book}.
-\[\sum_{\substack{i<B\\\text{$i$ odd}}}
-\prod_\kappa \kappa F(r_i)\qquad
-\mathop{\pmb{\sum}}_{\substack{i<B\\\text{$i$ odd}}}
-\mathop{\pmb{\prod}}_\kappa \kappa(r_i)
-\]
-\begin{verbatim}
-\[\sum_{\substack{i<B\\\text{$i$ odd}}}
-\prod_\kappa \kappa F(r_i)\qquad
-\mathop{\pmb{\sum}}_{\substack{i<B\\\text{$i$ odd}}}
-\mathop{\pmb{\prod}}_\kappa \kappa(r_i)
-\]
-\end{verbatim}
-
-\section{Compound symbols and other features}
-\label{s:comp}
-\subsection{Multiple integral signs}
-
-\cn{iint}, \cn{iiint}, and \cn{iiiint} give multiple integral signs
-with the spacing between them nicely adjusted,  in both text and
-display style.  \cn{idotsint} gives two integral signs with dots
-between them.
-\begin{gather}
-\iint\limits_A f(x,y)\,dx\,dy\qquad\iiint\limits_A
-f(x,y,z)\,dx\,dy\,dz\\
-\iiiint\limits_A
-f(w,x,y,z)\,dw\,dx\,dy\,dz\qquad\idotsint\limits_A f(x_1,\dots,x_k)
-\end{gather}
-
-\subsection{Over and under arrows}
-
-Some extra over and under arrow operations are provided in
-the \pkg{amsmath} package.  (Basic \LaTeX\ provides
-\cn{overrightarrow} and \cn{overleftarrow}).
-\begin{align*}
-\overrightarrow{\psi_\delta(t) E_t h}&
-=\underrightarrow{\psi_\delta(t) E_t h}\\
-\overleftarrow{\psi_\delta(t) E_t h}&
-=\underleftarrow{\psi_\delta(t) E_t h}\\
-\overleftrightarrow{\psi_\delta(t) E_t h}&
-=\underleftrightarrow{\psi_\delta(t) E_t h}
-\end{align*}
-\begin{verbatim}
-\begin{align*}
-\overrightarrow{\psi_\delta(t) E_t h}&
-=\underrightarrow{\psi_\delta(t) E_t h}\\
-\overleftarrow{\psi_\delta(t) E_t h}&
-=\underleftarrow{\psi_\delta(t) E_t h}\\
-\overleftrightarrow{\psi_\delta(t) E_t h}&
-=\underleftrightarrow{\psi_\delta(t) E_t h}
-\end{align*}
-\end{verbatim}
-These all scale properly in subscript sizes:
-\[\int_{\overrightarrow{AB}} ax\,dx\]
-\begin{verbatim}
-\[\int_{\overrightarrow{AB}} ax\,dx\]
-\end{verbatim}
-
-\subsection{Dots}
-
-Normally you need only type \cn{dots} for ellipsis dots in a
-math formula.  The main exception is when the dots
-fall at the end of the formula; then you need to
-specify one of \cn{dotsc} (series dots, after a comma),
-\cn{dotsb} (binary dots, for binary relations or operators),
-\cn{dotsm} (multiplication dots), or \cn{dotsi} (dots after
-an integral).  For example, the input
-\begin{verbatim}
-Then we have the series $A_1,A_2,\dotsc$,
-the regional sum $A_1+A_2+\dotsb$,
-the orthogonal product $A_1A_2\dotsm$,
-and the infinite integral
-\[\int_{A_1}\int_{A_2}\dotsi\].
-\end{verbatim}
-produces
-\begin{quotation}
-Then we have the series $A_1,A_2,\dotsc$,
-the regional sum $A_1+A_2+\dotsb$,
-the orthogonal product $A_1A_2\dotsm$,
-and the infinite integral
-\[\int_{A_1}\int_{A_2}\dotsi\]
-\end{quotation}
-
-\subsection{Accents in math}
-
-Double accents:
-\[\Hat{\Hat{H}}\quad\Check{\Check{C}}\quad
-\Tilde{\Tilde{T}}\quad\Acute{\Acute{A}}\quad
-\Grave{\Grave{G}}\quad\Dot{\Dot{D}}\quad
-\Ddot{\Ddot{D}}\quad\Breve{\Breve{B}}\quad
-\Bar{\Bar{B}}\quad\Vec{\Vec{V}}\]
-\begin{verbatim}
-\[\Hat{\Hat{H}}\quad\Check{\Check{C}}\quad
-\Tilde{\Tilde{T}}\quad\Acute{\Acute{A}}\quad
-\Grave{\Grave{G}}\quad\Dot{\Dot{D}}\quad
-\Ddot{\Ddot{D}}\quad\Breve{\Breve{B}}\quad
-\Bar{\Bar{B}}\quad\Vec{\Vec{V}}\]
-\end{verbatim}
-This double accent operation is complicated
-and tends to slow down the processing of a \LaTeX\ file.
-
-
-\subsection{Dot accents}
-\cn{dddot} and \cn{ddddot} are available to
-produce triple and quadruple dot accents
-in addition to the \cn{dot} and \cn{ddot} accents already available
-in \LaTeX:
-\[\dddot{Q}\qquad\ddddot{R}\]
-\begin{verbatim}
-\[\dddot{Q}\qquad\ddddot{R}\]
-\end{verbatim}
-
-\subsection{Roots}
-
-In the \pkg{amsmath} package \cn{leftroot} and \cn{uproot} allow you to adjust
-the position of the root index of a radical:
-\begin{verbatim}
-\sqrt[\leftroot{-2}\uproot{2}\beta]{k}
-\end{verbatim}
-gives good positioning of the $\beta$:
-\[\sqrt[\leftroot{-2}\uproot{2}\beta]{k}\]
-
-\subsection{Boxed formulas} The command \cn{boxed} puts a box around its
-argument, like \cn{fbox} except that the contents are in math mode:
-\begin{verbatim}
-\boxed{W_t-F\subseteq V(P_i)\subseteq W_t}
-\end{verbatim}
-\[\boxed{W_t-F\subseteq V(P_i)\subseteq W_t}.\]
-
-\subsection{Extensible arrows}
-\cn{xleftarrow} and \cn{xrightarrow} produce
-arrows that extend automatically to accommodate unusually wide
-subscripts or superscripts.  The text of the subscript or superscript
-are given as an optional resp.\@ mandatory argument:
-Example:
-\[0 \xleftarrow[\zeta]{\alpha} F\times\triangle[n-1]
-  \xrightarrow{\partial_0\alpha(b)} E^{\partial_0b}\]
-\begin{verbatim}
-\[0 \xleftarrow[\zeta]{\alpha} F\times\triangle[n-1]
-  \xrightarrow{\partial_0\alpha(b)} E^{\partial_0b}\]
-\end{verbatim}
-
-\subsection{\cn{overset}, \cn{underset}, and \cn{sideset}}
-Examples:
-\[\overset{*}{X}\qquad\underset{*}{X}\qquad
-\overset{a}{\underset{b}{X}}\]
-\begin{verbatim}
-\[\overset{*}{X}\qquad\underset{*}{X}\qquad
-\overset{a}{\underset{b}{X}}\]
-\end{verbatim}
-
-The command \cn{sideset} is for a rather special
-purpose: putting symbols at the subscript and superscript
-corners of a large operator symbol such as $\sum$ or $\prod$,
-without affecting the placement of limits.
-Examples:
-\[\sideset{_*^*}{_*^*}\prod_k\qquad
-\sideset{}{'}\sum_{0\le i\le m} E_i\beta x
-\]
-\begin{verbatim}
-\[\sideset{_*^*}{_*^*}\prod_k\qquad
-\sideset{}{'}\sum_{0\le i\le m} E_i\beta x
-\]
-\end{verbatim}
-
-\subsection{The \cn{text} command}
-The main use of the command \cn{text} is for words or phrases in a
-display:
-\[\mathbf{y}=\mathbf{y}'\quad\text{if and only if}\quad
-y'_k=\delta_k y_{\tau(k)}\]
-\begin{verbatim}
-\[\mathbf{y}=\mathbf{y}'\quad\text{if and only if}\quad
-y'_k=\delta_k y_{\tau(k)}\]
-\end{verbatim}
-
-\subsection{Operator names}
-The more common math functions such as $\log$, $\sin$, and $\lim$
-have predefined control sequences: \verb=\log=, \verb=\sin=,
-\verb=\lim=.
-The \pkg{amsmath} package provides \cn{DeclareMathOperator} and
-\cn{DeclareMathOperator*}
-for producing new function names that will have the
-same typographical treatment.
-Examples:
-\[\norm{f}_\infty=
-\esssup_{x\in R^n}\abs{f(x)}\]
-\begin{verbatim}
-\[\norm{f}_\infty=
-\esssup_{x\in R^n}\abs{f(x)}\]
-\end{verbatim}
-\[\meas_1\{u\in R_+^1\colon f^*(u)>\alpha\}
-=\meas_n\{x\in R^n\colon \abs{f(x)}\geq\alpha\}
-\quad \forall\alpha>0.\]
-\begin{verbatim}
-\[\meas_1\{u\in R_+^1\colon f^*(u)>\alpha\}
-=\meas_n\{x\in R^n\colon \abs{f(x)}\geq\alpha\}
-\quad \forall\alpha>0.\]
-\end{verbatim}
-\cn{esssup} and \cn{meas} would be defined in the document preamble as
-\begin{verbatim}
-\DeclareMathOperator*{\esssup}{ess\,sup}
-\DeclareMathOperator{\meas}{meas}
-\end{verbatim}
-
-The following special operator names are predefined in the \pkg{amsmath}
-package: \cn{varlimsup}, \cn{varliminf}, \cn{varinjlim}, and
-\cn{varprojlim}. Here's what they look like in use:
-\begin{align}
-&\varlimsup_{n\rightarrow\infty}
-       \mathcal{Q}(u_n,u_n-u^{\#})\le0\\
-&\varliminf_{n\rightarrow\infty}
-  \left\lvert a_{n+1}\right\rvert/\left\lvert a_n\right\rvert=0\\
-&\varinjlim (m_i^\lambda\cdot)^*\le0\\
-&\varprojlim_{p\in S(A)}A_p\le0
-\end{align}
-\begin{verbatim}
-\begin{align}
-&\varlimsup_{n\rightarrow\infty}
-       \mathcal{Q}(u_n,u_n-u^{\#})\le0\\
-&\varliminf_{n\rightarrow\infty}
-  \left\lvert a_{n+1}\right\rvert/\left\lvert a_n\right\rvert=0\\
-&\varinjlim (m_i^\lambda\cdot)^*\le0\\
-&\varprojlim_{p\in S(A)}A_p\le0
-\end{align}
-\end{verbatim}
-
-\subsection{\cn{mod} and its relatives}
-The commands \cn{mod} and \cn{pod} are variants of
-\cn{pmod} preferred by some authors; \cn{mod} omits the parentheses,
-whereas \cn{pod} omits the `mod' and retains the parentheses.
-Examples:
-\begin{align}
-x&\equiv y+1\pmod{m^2}\\
-x&\equiv y+1\mod{m^2}\\
-x&\equiv y+1\pod{m^2}
-\end{align}
-\begin{verbatim}
-\begin{align}
-x&\equiv y+1\pmod{m^2}\\
-x&\equiv y+1\mod{m^2}\\
-x&\equiv y+1\pod{m^2}
-\end{align}
-\end{verbatim}
-
-\subsection{Fractions and related constructions}
-\label{fracs}
-
-The usual notation for binomials is similar to the fraction concept,
-so it has a similar command \cn{binom} with two arguments. Example:
-\begin{equation}
-\begin{split}
-\sum_{\gamma\in\Gamma_C} I_\gamma&
-=2^k-\binom{k}{1}2^{k-1}+\binom{k}{2}2^{k-2}\\
-&\quad+\dots+(-1)^l\binom{k}{l}2^{k-l}
-+\dots+(-1)^k\\
-&=(2-1)^k=1
-\end{split}
-\end{equation}
-\begin{verbatim}
-\begin{equation}
-\begin{split}
-[\sum_{\gamma\in\Gamma_C} I_\gamma&
-=2^k-\binom{k}{1}2^{k-1}+\binom{k}{2}2^{k-2}\\
-&\quad+\dots+(-1)^l\binom{k}{l}2^{k-l}
-+\dots+(-1)^k\\
-&=(2-1)^k=1
-\end{split}
-\end{equation}
-\end{verbatim}
-There are also abbreviations
-\begin{verbatim}
-\dfrac        \dbinom
-\tfrac        \tbinom
-\end{verbatim}
-for the commonly needed constructions
-\begin{verbatim}
-{\displaystyle\frac ... }   {\displaystyle\binom ... }
-{\textstyle\frac ... }      {\textstyle\binom ... }
-\end{verbatim}
-
-The generalized fraction command \cn{genfrac} provides full access to
-the six \TeX{} fraction primitives:
-\begin{align}
-\text{\cn{over}: }&\genfrac{}{}{}{}{n+1}{2}&
-\text{\cn{overwithdelims}: }&
-  \genfrac{\langle}{\rangle}{}{}{n+1}{2}\\
-\text{\cn{atop}: }&\genfrac{}{}{0pt}{}{n+1}{2}&
-\text{\cn{atopwithdelims}: }&
-  \genfrac{(}{)}{0pt}{}{n+1}{2}\\
-\text{\cn{above}: }&\genfrac{}{}{1pt}{}{n+1}{2}&
-\text{\cn{abovewithdelims}: }&
-  \genfrac{[}{]}{1pt}{}{n+1}{2}
-\end{align}
-\begin{verbatim}
-\text{\cn{over}: }&\genfrac{}{}{}{}{n+1}{2}&
-\text{\cn{overwithdelims}: }&
-  \genfrac{\langle}{\rangle}{}{}{n+1}{2}\\
-\text{\cn{atop}: }&\genfrac{}{}{0pt}{}{n+1}{2}&
-\text{\cn{atopwithdelims}: }&
-  \genfrac{(}{)}{0pt}{}{n+1}{2}\\
-\text{\cn{above}: }&\genfrac{}{}{1pt}{}{n+1}{2}&
-\text{\cn{abovewithdelims}: }&
-  \genfrac{[}{]}{1pt}{}{n+1}{2}
-\end{verbatim}
-
-\subsection{Continued fractions}
-The continued fraction
-\begin{equation}
-\cfrac{1}{\sqrt{2}+
- \cfrac{1}{\sqrt{2}+
-  \cfrac{1}{\sqrt{2}+
-   \cfrac{1}{\sqrt{2}+
-    \cfrac{1}{\sqrt{2}+\dotsb
-}}}}}
-\end{equation}
-can be obtained by typing
-\begin{verbatim}
-\cfrac{1}{\sqrt{2}+
- \cfrac{1}{\sqrt{2}+
-  \cfrac{1}{\sqrt{2}+
-   \cfrac{1}{\sqrt{2}+
-    \cfrac{1}{\sqrt{2}+\dotsb
-}}}}}
-\end{verbatim}
-Left or right placement of any of the numerators is accomplished by using
-\cn{cfrac[l]} or \cn{cfrac[r]} instead of \cn{cfrac}.
-
-\subsection{Smash}
-
-In \pkg{amsmath} there are optional arguments \verb"t" and \verb"b" for
-the plain \TeX\ command \cn{smash}, because sometimes it is advantageous
-to be able to `smash' only the top or only the bottom of something while
-retaining the natural depth or height. In the formula
-$X_j=(1/\sqrt{\smash[b]{\lambda_j}})X_j'$ \cn{smash}\verb=[b]= has been
-used to limit the size of the radical symbol.
-\begin{verbatim}
-$X_j=(1/\sqrt{\smash[b]{\lambda_j}})X_j'$
-\end{verbatim}
-Without the use of \cn{smash}\verb=[b]= the formula would have appeared
-thus: $X_j=(1/\sqrt{\lambda_j})X_j'$, with the radical extending to
-encompass the depth of the subscript $j$.
-
-\subsection{The `cases' environment}
-`Cases' constructions like the following can be produced using
-the \env{cases} environment.
-\begin{equation}
-P_{r-j}=
-  \begin{cases}
-    0&  \text{if $r-j$ is odd},\\
-    r!\,(-1)^{(r-j)/2}&  \text{if $r-j$ is even}.
-  \end{cases}
-\end{equation}
-\begin{verbatim}
-\begin{equation} P_{r-j}=
-  \begin{cases}
-    0&  \text{if $r-j$ is odd},\\
-    r!\,(-1)^{(r-j)/2}&  \text{if $r-j$ is even}.
-  \end{cases}
-\end{equation}
-\end{verbatim}
-Notice the use of \cn{text} and the embedded math.
-
-\subsection{Matrix}
-
-Here are samples of the matrix environments,
-\cn{matrix}, \cn{pmatrix}, \cn{bmatrix}, \cn{Bmatrix}, \cn{vmatrix}
-and \cn{Vmatrix}:
-\begin{equation}
-\begin{matrix}
-\vartheta& \varrho\\\varphi& \varpi
-\end{matrix}\quad
-\begin{pmatrix}
-\vartheta& \varrho\\\varphi& \varpi
-\end{pmatrix}\quad
-\begin{bmatrix}
-\vartheta& \varrho\\\varphi& \varpi
-\end{bmatrix}\quad
-\begin{Bmatrix}
-\vartheta& \varrho\\\varphi& \varpi
-\end{Bmatrix}\quad
-\begin{vmatrix}
-\vartheta& \varrho\\\varphi& \varpi
-\end{vmatrix}\quad
-\begin{Vmatrix}
-\vartheta& \varrho\\\varphi& \varpi
-\end{Vmatrix}
-\end{equation}
-%
-\begin{verbatim}
-\begin{matrix}
-\vartheta& \varrho\\\varphi& \varpi
-\end{matrix}\quad
-\begin{pmatrix}
-\vartheta& \varrho\\\varphi& \varpi
-\end{pmatrix}\quad
-\begin{bmatrix}
-\vartheta& \varrho\\\varphi& \varpi
-\end{bmatrix}\quad
-\begin{Bmatrix}
-\vartheta& \varrho\\\varphi& \varpi
-\end{Bmatrix}\quad
-\begin{vmatrix}
-\vartheta& \varrho\\\varphi& \varpi
-\end{vmatrix}\quad
-\begin{Vmatrix}
-\vartheta& \varrho\\\varphi& \varpi
-\end{Vmatrix}
-\end{verbatim}
-
-To produce a small matrix suitable for use in text, use the
-\env{smallmatrix} environment.
-\begin{verbatim}
-\begin{math}
-  \bigl( \begin{smallmatrix}
-      a&b\\ c&d
-    \end{smallmatrix} \bigr)
-\end{math}
-\end{verbatim}
-To show
-the effect of the matrix on the surrounding lines of
-a paragraph, we put it here: \begin{math}
-  \bigl( \begin{smallmatrix}
-      a&b\\ c&d
-    \end{smallmatrix} \bigr)
-\end{math}
-and follow it with enough text to ensure that there will
-be at least one full line below the matrix.
-
-\cn{hdotsfor}\verb"{"\textit{number}\verb"}" produces a row of dots in a matrix
-spanning the given number of columns:
-\[W(\Phi)= \begin{Vmatrix}
-\dfrac\varphi{(\varphi_1,\varepsilon_1)}&0&\dots&0\\
-\dfrac{\varphi k_{n2}}{(\varphi_2,\varepsilon_1)}&
-\dfrac\varphi{(\varphi_2,\varepsilon_2)}&\dots&0\\
-\hdotsfor{5}\\
-\dfrac{\varphi k_{n1}}{(\varphi_n,\varepsilon_1)}&
-\dfrac{\varphi k_{n2}}{(\varphi_n,\varepsilon_2)}&\dots&
-\dfrac{\varphi k_{n\,n-1}}{(\varphi_n,\varepsilon_{n-1})}&
-\dfrac{\varphi}{(\varphi_n,\varepsilon_n)}
-\end{Vmatrix}\]
-\begin{verbatim}
-\[W(\Phi)= \begin{Vmatrix}
-\dfrac\varphi{(\varphi_1,\varepsilon_1)}&0&\dots&0\\
-\dfrac{\varphi k_{n2}}{(\varphi_2,\varepsilon_1)}&
-\dfrac\varphi{(\varphi_2,\varepsilon_2)}&\dots&0\\
-\hdotsfor{5}\\
-\dfrac{\varphi k_{n1}}{(\varphi_n,\varepsilon_1)}&
-\dfrac{\varphi k_{n2}}{(\varphi_n,\varepsilon_2)}&\dots&
-\dfrac{\varphi k_{n\,n-1}}{(\varphi_n,\varepsilon_{n-1})}&
-\dfrac{\varphi}{(\varphi_n,\varepsilon_n)}
-\end{Vmatrix}\]
-\end{verbatim}
-The spacing of the dots can be varied through use of a square-bracket
-option, for example, \verb"\hdotsfor[1.5]{3}".  The number in square brackets
-will be used as a multiplier; the normal value is 1.
-
-\subsection{The \cn{substack} command}
-
-The \cn{substack} command can be used to produce a multiline
-subscript or superscript:
-for example
-\begin{verbatim}
-\sum_{\substack{0\le i\le m\\ 0<j<n}} P(i,j)
-\end{verbatim}
-produces a two-line subscript underneath the sum:
-\begin{equation}
-\sum_{\substack{0\le i\le m\\ 0<j<n}} P(i,j)
-\end{equation}
-A slightly more generalized form is the \env{subarray} environment which
-allows you to specify that each line should be left-aligned instead of
-centered, as here:
-\begin{equation}
-\sum_{\begin{subarray}{l}
-        0\le i\le m\\ 0<j<n
-      \end{subarray}}
- P(i,j)
-\end{equation}
-\begin{verbatim}
-\sum_{\begin{subarray}{l}
-        0\le i\le m\\ 0<j<n
-      \end{subarray}}
- P(i,j)
-\end{verbatim}
-
-
-\subsection{Big-g-g delimiters}
-Here are some big delimiters, first in \cn{normalsize}:
-\[\biggl(\mathbf{E}_{y}
-  \int_0^{t_\varepsilon}L_{x,y^x(s)}\varphi(x)\,ds
-  \biggr)
-\]
-\begin{verbatim}
-\[\biggl(\mathbf{E}_{y}
-  \int_0^{t_\varepsilon}L_{x,y^x(s)}\varphi(x)\,ds
-  \biggr)
-\]
-\end{verbatim}
-and now in \cn{Large} size:
-{\Large
-\[\biggl(\mathbf{E}_{y}
-  \int_0^{t_\varepsilon}L_{x,y^x(s)}\varphi(x)\,ds
-  \biggr)
-\]}
-\begin{verbatim}
-{\Large
-\[\biggl(\mathbf{E}_{y}
-  \int_0^{t_\varepsilon}L_{x,y^x(s)}\varphi(x)\,ds
-  \biggr)
-\]}
-\end{verbatim}
-
-\newpage
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\makeatletter
-
-%% This turns on vertical rules at the right and left margins, to
-%% better illustrate the spacing for certain multiple-line equation
-%% structures.
-\def\@makecol{\ifvoid\footins \setbox\@outputbox\box\@cclv
-   \else\setbox\@outputbox
-     \vbox{\boxmaxdepth \maxdepth
-     \unvbox\@cclv\vskip\skip\footins\footnoterule\unvbox\footins}\fi
-  \xdef\@freelist{\@freelist\@midlist}\gdef\@midlist{}\@combinefloats
-  \setbox\@outputbox\hbox{\vrule width\marginrulewidth
-        \vbox to\@colht{\boxmaxdepth\maxdepth
-         \@texttop\dimen128=\dp\@outputbox\unvbox\@outputbox
-         \vskip-\dimen128\@textbottom}%
-        \vrule width\marginrulewidth}%
-     \global\maxdepth\@maxdepth}
-\newdimen\marginrulewidth
-\setlength{\marginrulewidth}{.1pt}
-\makeatother
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\appendix
-\section{Examples of multiple-line equation structures}
-\label{s:eq}
-
-\textbf{\large Note: Starting on this page, vertical rules are
-added at the margins so that the positioning of various display elements
-with respect to the margins can be seen more clearly.}
-
-\subsection{Split}
-The \env{split} environment is not an independent environment
-but should be used inside something else such as \env{equation}
-or \env{align}.
-
-If there is not enough room for it, the equation number for  a
-\env{split} will be shifted to the previous line, when equation numbers are
-on the left; the number shifts down to the next line when numbers are on
-the right.
-\begin{equation}
-\begin{split}
-f_{h,\varepsilon}(x,y)
-&=\varepsilon\mathbf{E}_{x,y}\int_0^{t_\varepsilon}
-L_{x,y_\varepsilon(\varepsilon u)}\varphi(x)\,du\\
-&= h\int L_{x,z}\varphi(x)\rho_x(dz)\\
-&\quad+h\biggl[\frac{1}{t_\varepsilon}\biggl(\mathbf{E}_{y}
-  \int_0^{t_\varepsilon}L_{x,y^x(s)}\varphi(x)\,ds
-  -t_\varepsilon\int L_{x,z}\varphi(x)\rho_x(dz)\biggr)\\
-&\phantom{{=}+h\biggl[}+\frac{1}{t_\varepsilon}
-  \biggl(\mathbf{E}_{y}\int_0^{t_\varepsilon}L_{x,y^x(s)}
-    \varphi(x)\,ds -\mathbf{E}_{x,y}\int_0^{t_\varepsilon}
-   L_{x,y_\varepsilon(\varepsilon s)}
-   \varphi(x)\,ds\biggr)\biggr]\\
-&=h\wh{L}_x\varphi(x)+h\theta_\varepsilon(x,y),
-\end{split}
-\end{equation}
-Some text after to test the below-display spacing.
-
-\begin{verbatim}
-\begin{equation}
-\begin{split}
-f_{h,\varepsilon}(x,y)
-&=\varepsilon\mathbf{E}_{x,y}\int_0^{t_\varepsilon}
-L_{x,y_\varepsilon(\varepsilon u)}\varphi(x)\,du\\
-&= h\int L_{x,z}\varphi(x)\rho_x(dz)\\
-&\quad+h\biggl[\frac{1}{t_\varepsilon}\biggl(\mathbf{E}_{y}
-  \int_0^{t_\varepsilon}L_{x,y^x(s)}\varphi(x)\,ds
-  -t_\varepsilon\int L_{x,z}\varphi(x)\rho_x(dz)\biggr)\\
-&\phantom{{=}+h\biggl[}+\frac{1}{t_\varepsilon}
-  \biggl(\mathbf{E}_{y}\int_0^{t_\varepsilon}L_{x,y^x(s)}
-    \varphi(x)\,ds -\mathbf{E}_{x,y}\int_0^{t_\varepsilon}
-   L_{x,y_\varepsilon(\varepsilon s)}
-   \varphi(x)\,ds\biggr)\biggr]\\
-&=h\wh{L}_x\varphi(x)+h\theta_\varepsilon(x,y),
-\end{split}
-\end{equation}
-\end{verbatim}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\newpage
-Unnumbered version:
-\begin{equation*}
-\begin{split}
-f_{h,\varepsilon}(x,y)
-&=\varepsilon\mathbf{E}_{x,y}\int_0^{t_\varepsilon}
-L_{x,y_\varepsilon(\varepsilon u)}\varphi(x)\,du\\
-&= h\int L_{x,z}\varphi(x)\rho_x(dz)\\
-&\quad+h\biggl[\frac{1}{t_\varepsilon}\biggl(\mathbf{E}_{y}
-  \int_0^{t_\varepsilon}L_{x,y^x(s)}\varphi(x)\,ds
-  -t_\varepsilon\int L_{x,z}\varphi(x)\rho_x(dz)\biggr)\\
-&\phantom{{=}+h\biggl[}+\frac{1}{t_\varepsilon}
-  \biggl(\mathbf{E}_{y}\int_0^{t_\varepsilon}L_{x,y^x(s)}
-    \varphi(x)\,ds -\mathbf{E}_{x,y}\int_0^{t_\varepsilon}
-   L_{x,y_\varepsilon(\varepsilon s)}
-   \varphi(x)\,ds\biggr)\biggr]\\
-&=h\wh{L}_x\varphi(x)+h\theta_\varepsilon(x,y),
-\end{split}
-\end{equation*}
-Some text after to test the below-display spacing.
-
-\begin{verbatim}
-\begin{equation*}
-\begin{split}
-f_{h,\varepsilon}(x,y)
-&=\varepsilon\mathbf{E}_{x,y}\int_0^{t_\varepsilon}
-L_{x,y_\varepsilon(\varepsilon u)}\varphi(x)\,du\\
-&= h\int L_{x,z}\varphi(x)\rho_x(dz)\\
-&\quad+h\biggl[\frac{1}{t_\varepsilon}\biggl(\mathbf{E}_{y}
-  \int_0^{t_\varepsilon}L_{x,y^x(s)}\varphi(x)\,ds
-  -t_\varepsilon\int L_{x,z}\varphi(x)\rho_x(dz)\biggr)\\
-&\phantom{{=}+h\biggl[}+\frac{1}{t_\varepsilon}
-  \biggl(\mathbf{E}_{y}\int_0^{t_\varepsilon}L_{x,y^x(s)}
-    \varphi(x)\,ds -\mathbf{E}_{x,y}\int_0^{t_\varepsilon}
-   L_{x,y_\varepsilon(\varepsilon s)}
-   \varphi(x)\,ds\biggr)\biggr]\\
-&=h\wh{L}_x\varphi(x)+h\theta_\varepsilon(x,y),
-\end{split}
-\end{equation*}
-\end{verbatim}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\newpage
-If the option \env{centertags} is included in the options
-list of the \pkg{amsmath} package,
-the equation numbers for \env{split} environments will be
-centered vertically on the height
-of  the \env{split}:
-{\makeatletter\ctagsplit@true
-\begin{equation}
-\begin{split}
- \abs{I_2}&=\left\lvert \int_{0}^T \psi(t)\left\{u(a,t)-\int_{\gamma(t)}^a
-  \frac{d\theta}{k(\theta,t)}
-  \int_{a}^\theta c(\xi)u_t(\xi,t)\,d\xi\right\}dt\right\rvert\\
-&\le C_6\left\lvert \left\lvert f\int_\Omega\left\lvert \wt{S}^{-1,0}_{a,-}
-  W_2(\Omega,\Gamma_l)\right\rvert\right\rvert
-  \left\lvert \abs{u}\overset{\circ}\to W_2^{\wt{A}}
-  (\Omega;\Gamma_r,T)\right\rvert\right\rvert.
-\end{split}
-\end{equation}}%
-Some text after to test the below-display spacing.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\newpage
-Use of \env{split} within \env{align}:
-{\delimiterfactor750
-\begin{align}
-\begin{split}\abs{I_1}
-  &=\left\lvert \int_\Omega gRu\,d\Omega\right\rvert\\
-&\le C_3\left[\int_\Omega\left(\int_{a}^x
-  g(\xi,t)\,d\xi\right)^2d\Omega\right]^{1/2}\\
-&\quad\times \left[\int_\Omega\left\{u^2_x+\frac{1}{k}
-  \left(\int_{a}^x cu_t\,d\xi\right)^2\right\}
-  c\Omega\right]^{1/2}\\
-&\le C_4\left\lvert \left\lvert f\left\lvert \wt{S}^{-1,0}_{a,-}
-  W_2(\Omega,\Gamma_l)\right\rvert\right\rvert
-  \left\lvert \abs{u}\overset{\circ}\to W_2^{\wt{A}}
-  (\Omega;\Gamma_r,T)\right\rvert\right\rvert.
-\end{split}\label{eq:A}\\
-\begin{split}\abs{I_2}&=\left\lvert \int_{0}^T \psi(t)\left\{u(a,t)
-  -\int_{\gamma(t)}^a\frac{d\theta}{k(\theta,t)}
-  \int_{a}^\theta c(\xi)u_t(\xi,t)\,d\xi\right\}dt\right\rvert\\
-&\le C_6\left\lvert \left\lvert f\int_\Omega
- \left\lvert \wt{S}^{-1,0}_{a,-}
-  W_2(\Omega,\Gamma_l)\right\rvert\right\rvert
-  \left\lvert \abs{u}\overset{\circ}\to W_2^{\wt{A}}
-  (\Omega;\Gamma_r,T)\right\rvert\right\rvert.
-\end{split}
-\end{align}}%
-Some text after to test the below-display spacing.
-
-\begin{verbatim}
-\begin{align}
-\begin{split}\abs{I_1}
-  &=\left\lvert \int_\Omega gRu\,d\Omega\right\rvert\\
-&\le C_3\left[\int_\Omega\left(\int_{a}^x
-  g(\xi,t)\,d\xi\right)^2d\Omega\right]^{1/2}\\
-&\quad\times \left[\int_\Omega\left\{u^2_x+\frac{1}{k}
-  \left(\int_{a}^x cu_t\,d\xi\right)^2\right\}
-  c\Omega\right]^{1/2}\\
-&\le C_4\left\lvert \left\lvert f\left\lvert \wt{S}^{-1,0}_{a,-}
-  W_2(\Omega,\Gamma_l)\right\rvert\right\rvert
-  \left\lvert \abs{u}\overset{\circ}\to W_2^{\wt{A}}
-  (\Omega;\Gamma_r,T)\right\rvert\right\rvert.
-\end{split}\label{eq:A}\\
-\begin{split}\abs{I_2}&=\left\lvert \int_{0}^T \psi(t)\left\{u(a,t)
-  -\int_{\gamma(t)}^a\frac{d\theta}{k(\theta,t)}
-  \int_{a}^\theta c(\xi)u_t(\xi,t)\,d\xi\right\}dt\right\rvert\\
-&\le C_6\left\lvert \left\lvert f\int_\Omega
-  \left\lvert \wt{S}^{-1,0}_{a,-}
-  W_2(\Omega,\Gamma_l)\right\rvert\right\rvert
-  \left\lvert \abs{u}\overset{\circ}\to W_2^{\wt{A}}
-  (\Omega;\Gamma_r,T)\right\rvert\right\rvert.
-\end{split}
-\end{align}
-\end{verbatim}
-
-%%%%%%%%%%%%%%%%%%
-
-\newpage
-Unnumbered \env{align}, with a number on the second \env{split}:
-\begin{align*}
-\begin{split}\abs{I_1}&=\left\lvert \int_\Omega gRu\,d\Omega\right\rvert\\
-  &\le C_3\left[\int_\Omega\left(\int_{a}^x
-  g(\xi,t)\,d\xi\right)^2d\Omega\right]^{1/2}\\
-&\phantom{=}\times \left[\int_\Omega\left\{u^2_x+\frac{1}{k}
-  \left(\int_{a}^x cu_t\,d\xi\right)^2\right\}
-  c\Omega\right]^{1/2}\\
-&\le C_4\left\lvert \left\lvert f\left\lvert \wt{S}^{-1,0}_{a,-}
-  W_2(\Omega,\Gamma_l)\right\rvert\right\rvert
-  \left\lvert \abs{u}\overset{\circ}\to W_2^{\wt{A}}
-  (\Omega;\Gamma_r,T)\right\rvert\right\rvert.
-\end{split}\\
-\begin{split}\abs{I_2}&=\left\lvert \int_{0}^T \psi(t)\left\{u(a,t)
-  -\int_{\gamma(t)}^a\frac{d\theta}{k(\theta,t)}
-  \int_{a}^\theta c(\xi)u_t(\xi,t)\,d\xi\right\}dt\right\rvert\\
-&\le C_6\left\lvert \left\lvert f\int_\Omega
-  \left\lvert \wt{S}^{-1,0}_{a,-}
-  W_2(\Omega,\Gamma_l)\right\rvert\right\rvert
-  \left\lvert \abs{u}\overset{\circ}\to W_2^{\wt{A}}
-  (\Omega;\Gamma_r,T)\right\rvert\right\rvert.
-\end{split}\tag{\theequation$'$}
-\end{align*}
-Some text after to test the below-display spacing.
-
-\begin{verbatim}
-\begin{align*}
-\begin{split}\abs{I_1}&=\left\lvert \int_\Omega gRu\,d\Omega\right\rvert\\
-  &\le C_3\left[\int_\Omega\left(\int_{a}^x
-  g(\xi,t)\,d\xi\right)^2d\Omega\right]^{1/2}\\
-&\phantom{=}\times \left[\int_\Omega\left\{u^2_x+\frac{1}{k}
-  \left(\int_{a}^x cu_t\,d\xi\right)^2\right\}
-  c\Omega\right]^{1/2}\\
-&\le C_4\left\lvert \left\lvert f\left\lvert \wt{S}^{-1,0}_{a,-}
-  W_2(\Omega,\Gamma_l)\right\rvert\right\rvert
-  \left\lvert \abs{u}\overset{\circ}\to W_2^{\wt{A}}
-  (\Omega;\Gamma_r,T)\right\rvert\right\rvert.
-\end{split}\\
-\begin{split}\abs{I_2}&=\left\lvert \int_{0}^T \psi(t)\left\{u(a,t)
-  -\int_{\gamma(t)}^a\frac{d\theta}{k(\theta,t)}
-  \int_{a}^\theta c(\xi)u_t(\xi,t)\,d\xi\right\}dt\right\rvert\\
-&\le C_6\left\lvert \left\lvert f\int_\Omega
-  \left\lvert \wt{S}^{-1,0}_{a,-}
-  W_2(\Omega,\Gamma_l)\right\rvert\right\rvert
-  \left\lvert \abs{u}\overset{\circ}\to W_2^{\wt{A}}
-  (\Omega;\Gamma_r,T)\right\rvert\right\rvert.
-\end{split}\tag{\theequation$'$}
-\end{align*}
-\end{verbatim}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\newpage
-\subsection{Multline}
-Numbered version:
-\begin{multline}\label{eq:E}
-\int_a^b\biggl\{\int_a^b[f(x)^2g(y)^2+f(y)^2g(x)^2]
- -2f(x)g(x)f(y)g(y)\,dx\biggr\}\,dy \\
- =\int_a^b\biggl\{g(y)^2\int_a^bf^2+f(y)^2
-  \int_a^b g^2-2f(y)g(y)\int_a^b fg\biggr\}\,dy
-\end{multline}
-To test the use of \verb=\label= and
-\verb=\ref=, we refer to the number of this
-equation here: (\ref{eq:E}).
-
-\begin{verbatim}
-\begin{multline}\label{eq:E}
-\int_a^b\biggl\{\int_a^b[f(x)^2g(y)^2+f(y)^2g(x)^2]
- -2f(x)g(x)f(y)g(y)\,dx\biggr\}\,dy \\
- =\int_a^b\biggl\{g(y)^2\int_a^bf^2+f(y)^2
-  \int_a^b g^2-2f(y)g(y)\int_a^b fg\biggr\}\,dy
-\end{multline}
-\end{verbatim}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-Unnumbered version:
-\begin{multline*}
-\int_a^b\biggl\{\int_a^b[f(x)^2g(y)^2+f(y)^2g(x)^2]
- -2f(x)g(x)f(y)g(y)\,dx\biggr\}\,dy \\
- =\int_a^b\biggl\{g(y)^2\int_a^bf^2+f(y)^2
-  \int_a^b g^2-2f(y)g(y)\int_a^b fg\biggr\}\,dy
-\end{multline*}
-Some text after to test the below-display spacing.
-
-\begin{verbatim}
-\begin{multline*}
-\int_a^b\biggl\{\int_a^b[f(x)^2g(y)^2+f(y)^2g(x)^2]
- -2f(x)g(x)f(y)g(y)\,dx\biggr\}\,dy \\
- =\int_a^b\biggl\{g(y)^2\int_a^bf^2+f(y)^2
-  \int_a^b g^2-2f(y)g(y)\int_a^b fg\biggr\}\,dy
-\end{multline*}
-\end{verbatim}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\iffalse % bugfix needed, error message "Multiple \tag"
-         % [mjd,24-Jan-1995]
-\newpage
-And now an ``unnumbered'' version numbered with a literal tag:
-\begin{multline*}\tag*{[a]}
-\int_a^b\biggl\{\int_a^b[f(x)^2g(y)^2+f(y)^2g(x)^2]
- -2f(x)g(x)f(y)g(y)\,dx\biggr\}\,dy \\
- =\int_a^b\biggl\{g(y)^2\int_a^bf^2+f(y)^2
-  \int_a^b g^2-2f(y)g(y)\int_a^b fg\biggr\}\,dy
-\end{multline*}
-Some text after to test the below-display spacing.
-
-\begin{verbatim}
-\begin{multline*}\tag*{[a]}
-\int_a^b\biggl\{\int_a^b[f(x)^2g(y)^2+f(y)^2g(x)^2]
- -2f(x)g(x)f(y)g(y)\,dx\biggr\}\,dy \\
- =\int_a^b\biggl\{g(y)^2\int_a^bf^2+f(y)^2
-  \int_a^b g^2-2f(y)g(y)\int_a^b fg\biggr\}\,dy
-\end{multline*}
-\end{verbatim}
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-The same display with \verb=\multlinegap= set to zero.
-Notice that the space on the left in
-the first line does not change, because of the equation number, while
-the second line is pushed over to the right margin.
-{\setlength{\multlinegap}{0pt}
-\begin{multline*}\tag*{[a]}
-\int_a^b\biggl\{\int_a^b[f(x)^2g(y)^2+f(y)^2g(x)^2]
- -2f(x)g(x)f(y)g(y)\,dx\biggr\}\,dy \\
- =\int_a^b\biggl\{g(y)^2\int_a^bf^2+f(y)^2
-  \int_a^b g^2-2f(y)g(y)\int_a^b fg\biggr\}\,dy
-\end{multline*}}%
-Some text after to test the below-display spacing.
-
-\begin{verbatim}
-{\setlength{\multlinegap}{0pt}
-\begin{multline*}\tag*{[a]}
-\int_a^b\biggl\{\int_a^b[f(x)^2g(y)^2+f(y)^2g(x)^2]
- -2f(x)g(x)f(y)g(y)\,dx\biggr\}\,dy \\
- =\int_a^b\biggl\{g(y)^2\int_a^bf^2+f(y)^2
-  \int_a^b g^2-2f(y)g(y)\int_a^b fg\biggr\}\,dy
-\end{multline*}}
-\end{verbatim}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\fi % matches \iffalse above [mjd,24-Jan-1995]
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\newpage
-\subsection{Gather}
-Numbered version with \verb;\notag; on the second line:
-\begin{gather}
-D(a,r)\equiv\{z\in\mathbf{C}\colon \abs{z-a}<r\},\\
-\seg(a,r)\equiv\{z\in\mathbf{C}\colon
-\Im z= \Im a,\ \abs{z-a}<r\},\notag\\
-c(e,\theta,r)\equiv\{(x,y)\in\mathbf{C}
-\colon \abs{x-e}<y\tan\theta,\ 0<y<r\},\\
-C(E,\theta,r)\equiv\bigcup_{e\in E}c(e,\theta,r).
-\end{gather}
-\begin{verbatim}
-\begin{gather}
-D(a,r)\equiv\{z\in\mathbf{C}\colon \abs{z-a}<r\},\\
-\seg(a,r)\equiv\{z\in\mathbf{C}\colon
-\Im z= \Im a,\ \abs{z-a}<r\},\notag\\
-c(e,\theta,r)\equiv\{(x,y)\in\mathbf{C}
-\colon \abs{x-e}<y\tan\theta,\ 0<y<r\},\\
-C(E,\theta,r)\equiv\bigcup_{e\in E}c(e,\theta,r).
-\end{gather}
-\end{verbatim}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-Unnumbered version.
-\begin{gather*}
-D(a,r)\equiv\{z\in\mathbf{C}\colon \abs{z-a}<r\},\\
-\seg (a,r)\equiv\{z\in\mathbf{C}\colon
-\Im z= \Im a,\ \abs{z-a}<r\},\\
-c(e,\theta,r)\equiv\{(x,y)\in\mathbf{C}
- \colon \abs{x-e}<y\tan\theta,\ 0<y<r\},\\
-C(E,\theta,r)\equiv\bigcup_{e\in E}c(e,\theta,r).
-\end{gather*}
-Some text after to test the below-display spacing.
-\begin{verbatim}
-\begin{gather*}
-D(a,r)\equiv\{z\in\mathbf{C}\colon \abs{z-a}<r\},\\
-\seg (a,r)\equiv\{z\in\mathbf{C}\colon
-\Im z= \Im a,\ \abs{z-a}<r\},\\
-c(e,\theta,r)\equiv\{(x,y)\in\mathbf{C}
- \colon \abs{x-e}<y\tan\theta,\ 0<y<r\},\\
-C(E,\theta,r)\equiv\bigcup_{e\in E}c(e,\theta,r).
-\end{gather*}
-\end{verbatim}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\newpage
-\subsection{Align}
-Numbered version:
-\begin{align}
-\gamma_x(t)&=(\cos tu+\sin tx,v),\\
-\gamma_y(t)&=(u,\cos tv+\sin ty),\\
-\gamma_z(t)&=\left(\cos tu+\frac\alpha\beta\sin tv,
-  -\frac\beta\alpha\sin tu+\cos tv\right).
-\end{align}
-Some text after to test the below-display spacing.
-
-\begin{verbatim}
-\begin{align}
-\gamma_x(t)&=(\cos tu+\sin tx,v),\\
-\gamma_y(t)&=(u,\cos tv+\sin ty),\\
-\gamma_z(t)&=\left(\cos tu+\frac\alpha\beta\sin tv,
-  -\frac\beta\alpha\sin tu+\cos tv\right).
-\end{align}
-\end{verbatim}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-Unnumbered version:
-\begin{align*}
-\gamma_x(t)&=(\cos tu+\sin tx,v),\\
-\gamma_y(t)&=(u,\cos tv+\sin ty),\\
-\gamma_z(t)&=\left(\cos tu+\frac\alpha\beta\sin tv,
-  -\frac\beta\alpha\sin tu+\cos tv\right).
-\end{align*}
-Some text after to test the below-display spacing.
-
-\begin{verbatim}
-\begin{align*}
-\gamma_x(t)&=(\cos tu+\sin tx,v),\\
-\gamma_y(t)&=(u,\cos tv+\sin ty),\\
-\gamma_z(t)&=\left(\cos tu+\frac\alpha\beta\sin tv,
-  -\frac\beta\alpha\sin tu+\cos tv\right).
-\end{align*}
-\end{verbatim}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-A variation:
-\begin{align}
-x& =y && \text {by (\ref{eq:C})}\\
-x'& = y' && \text {by (\ref{eq:D})}\\
-x+x' & = y+y' && \text {by Axiom 1.}
-\end{align}
-Some text after to test the below-display spacing.
-
-\begin{verbatim}
-\begin{align}
-x& =y && \text {by (\ref{eq:C})}\\
-x'& = y' && \text {by (\ref{eq:D})}\\
-x+x' & = y+y' && \text {by Axiom 1.}
-\end{align}
-\end{verbatim}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\newpage
-\subsection{Align and split within gather}
-When using the \env{align} environment within the \env{gather}
-environment, one or the other, or both, should be unnumbered (using the
-\verb"*" form); numbering both the outer and inner environment would
-cause a conflict.
-
-Automatically numbered \env{gather} with \env{split} and \env{align*}:
-\begin{gather}
-\begin{split} \varphi(x,z)
-&=z-\gamma_{10}x-\gamma_{mn}x^mz^n\\
-&=z-Mr^{-1}x-Mr^{-(m+n)}x^mz^n
-\end{split}\\[6pt]
-\begin{align*}
-\zeta^0 &=(\xi^0)^2,\\
-\zeta^1 &=\xi^0\xi^1,\\
-\zeta^2 &=(\xi^1)^2,
-\end{align*}
-\end{gather}
-Here the \env{split} environment gets a number from the outer
-\env{gather} environment; numbers for individual lines of the
-\env{align*} are suppressed because of the star.
-
-\begin{verbatim}
-\begin{gather}
-\begin{split} \varphi(x,z)
-&=z-\gamma_{10}x-\gamma_{mn}x^mz^n\\
-&=z-Mr^{-1}x-Mr^{-(m+n)}x^mz^n
-\end{split}\\[6pt]
-\begin{align*}
-\zeta^0 &=(\xi^0)^2,\\
-\zeta^1 &=\xi^0\xi^1,\\
-\zeta^2 &=(\xi^1)^2,
-\end{align*}
-\end{gather}
-\end{verbatim}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-The \verb"*"-ed form of \env{gather} with the non-\verb"*"-ed form of
-\env{align}.
-\begin{gather*}
-\begin{split} \varphi(x,z)
-&=z-\gamma_{10}x-\gamma_{mn}x^mz^n\\
-&=z-Mr^{-1}x-Mr^{-(m+n)}x^mz^n
-\end{split}\\[6pt]
-\begin{align} \zeta^0&=(\xi^0)^2,\\
-\zeta^1 &=\xi^0\xi^1,\\
-\zeta^2 &=(\xi^1)^2,
-\end{align}
-\end{gather*}
-Some text after to test the below-display spacing.
-
-\begin{verbatim}
-\begin{gather*}
-\begin{split} \varphi(x,z)
-&=z-\gamma_{10}x-\gamma_{mn}x^mz^n\\
-&=z-Mr^{-1}x-Mr^{-(m+n)}x^mz^n
-\end{split}\\[6pt]
-\begin{align} \zeta^0&=(\xi^0)^2,\\
-\zeta^1 &=\xi^0\xi^1,\\
-\zeta^2 &=(\xi^1)^2,
-\end{align}
-\end{gather*}
-\end{verbatim}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\newpage
-\subsection{Alignat}
-Numbered version:
-\begin{alignat}{3}
-V_i & =v_i - q_i v_j, & \qquad X_i & = x_i - q_i x_j,
- & \qquad U_i & = u_i,
- \qquad \text{for $i\ne j$;}\label{eq:B}\\
-V_j & = v_j, & \qquad X_j & = x_j,
-  & \qquad U_j & u_j + \sum_{i\ne j} q_i u_i.
-\end{alignat}
-Some text after to test the below-display spacing.
-
-\begin{verbatim}
-\begin{alignat}{3}
-V_i & =v_i - q_i v_j, & \qquad X_i & = x_i - q_i x_j,
- & \qquad U_i & = u_i,
- \qquad \text{for $i\ne j$;}\label{eq:B}\\
-V_j & = v_j, & \qquad X_j & = x_j,
-  & \qquad U_j & u_j + \sum_{i\ne j} q_i u_i.
-\end{alignat}
-\end{verbatim}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-Unnumbered version:
-\begin{alignat*}3
-V_i & =v_i - q_i v_j, & \qquad X_i & = x_i - q_i x_j,
- & \qquad U_i & = u_i,
- \qquad \text{for $i\ne j$;} \\
-V_j & = v_j, & \qquad X_j & = x_j,
-  & \qquad U_j & u_j + \sum_{i\ne j} q_i u_i.
-\end{alignat*}
-Some text after to test the below-display spacing.
-
-\begin{verbatim}
-\begin{alignat*}3
-V_i & =v_i - q_i v_j, & \qquad X_i & = x_i - q_i x_j,
- & \qquad U_i & = u_i,
- \qquad \text{for $i\ne j$;} \\
-V_j & = v_j, & \qquad X_j & = x_j,
-  & \qquad U_j & u_j + \sum_{i\ne j} q_i u_i.
-\end{alignat*}
-\end{verbatim}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\newpage
-The most common use for \env{alignat} is for things like
-\begin{alignat}{2}
-x& =y && \qquad \text {by (\ref{eq:A})}\label{eq:C}\\
-x'& = y' && \qquad \text {by (\ref{eq:B})}\label{eq:D}\\
-x+x' & = y+y' && \qquad \text {by Axiom 1.}
-\end{alignat}
-Some text after to test the below-display spacing.
-
-\begin{verbatim}
-\begin{alignat}{2}
-x& =y && \qquad \text {by (\ref{eq:A})}\label{eq:C}\\
-x'& = y' && \qquad \text {by (\ref{eq:B})}\label{eq:D}\\
-x+x' & = y+y' && \qquad \text {by Axiom 1.}
-\end{alignat}
-\end{verbatim}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\newpage
-\setlength{\marginrulewidth}{0pt}
-
-\begin{thebibliography}{10}
-
-\bibitem{dihe:newdir}
-W.~Diffie and E.~Hellman, \emph{New directions in cryptography}, IEEE
-Transactions on Information Theory \textbf{22} (1976), no.~5, 644--654.
-
-\bibitem{fre:cichon}
-D.~H. Fremlin, \emph{Cichon's diagram}, 1983/1984, presented at the
-S{\'e}minaire Initiation {\`a} l'Analyse, G. Choquet, M. Rogalski, J.
-Saint Raymond, at the Universit{\'e} Pierre et Marie Curie, Paris, 23e
-ann{\'e}e.
-
-\bibitem{gouja:lagrmeth}
-I.~P. Goulden and D.~M. Jackson, \emph{The enumeration of directed
-closed {E}uler trails and directed {H}amiltonian circuits by
-{L}angrangian methods}, European J. Combin. \textbf{2} (1981), 131--212.
-
-\bibitem{hapa:graphenum}
-F.~Harary and E.~M. Palmer, \emph{Graphical enumeration}, Academic
-Press, 1973.
-
-\bibitem{imlelu:oneway}
-R.~Impagliazzo, L.~Levin, and M.~Luby, \emph{Pseudo-random generation
-from one-way functions}, Proc. 21st STOC (1989), ACM, New York,
-pp.~12--24.
-
-\bibitem{komiyo:unipfunc}
-M.~Kojima, S.~Mizuno, and A.~Yoshise, \emph{A new continuation method
-for complementarity problems with uniform p-functions}, Tech. Report
-B-194, Tokyo Inst. of Technology, Tokyo, 1987, Dept. of Information
-Sciences.
-
-\bibitem{komiyo:lincomp}
-\bysame, \emph{A polynomial-time algorithm for a class of linear
-complementarity problems}, Tech. Report B-193, Tokyo Inst. of
-Technology, Tokyo, 1987, Dept. of Information Sciences.
-
-\bibitem{liuchow:formalsum}
-C.~J. Liu and Yutze Chow, \emph{On operator and formal sum methods for
-graph enumeration problems}, SIAM J. Algorithms Discrete Methods
-\textbf{5} (1984), 384--438.
-
-\bibitem{mami:matrixth}
-M.~Marcus and H.~Minc, \emph{A survey of matrix theory and matrix
-inequalities}, Complementary Series in Math. \textbf{14} (1964), 21--48.
-
-\bibitem{miyoki:lincomp}
-S.~Mizuno, A.~Yoshise, and T.~Kikuchi, \emph{Practical polynomial time
-algorithms for linear complementarity problems}, Tech. Report~13, Tokyo
-Inst. of Technology, Tokyo, April 1988, Dept. of Industrial Engineering
-and Management.
-
-\bibitem{moad:quadpro}
-R.~D. Monteiro and I.~Adler, \emph{Interior path following primal-dual
-algorithms, part {II}: Quadratic programming}, August 1987, Working
-paper, Dept. of Industrial Engineering and Operations Research.
-
-\bibitem{ste:sint}
-E.~M. Stein, \emph{Singular integrals and differentiability properties
-of functions}, Princeton Univ. Press, Princeton, N.J., 1970.
-
-\bibitem{ye:intalg}
-Y.~Ye, \emph{Interior algorithms for linear, quadratic and linearly
-constrained convex programming}, Ph.D. thesis, Stanford Univ., Palo
-Alto, Calif., July 1987, Dept. of Engineering--Economic Systems,
-unpublished.
-
-\end{thebibliography}
-
-\end{document}
-\endinput
diff --git a/Master/texmf-dist/doc/latex/amslatex/textcmds.pdf b/Master/texmf-dist/doc/latex/amslatex/textcmds.pdf
deleted file mode 100644
index 5af7f0177e3..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/textcmds.pdf
+++ /dev/null
diff --git a/Master/texmf-dist/doc/latex/amslatex/thmtest.pdf b/Master/texmf-dist/doc/latex/amslatex/thmtest.pdf
deleted file mode 100644
index f1bbf14e5d3..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/thmtest.pdf
+++ /dev/null
diff --git a/Master/texmf-dist/doc/latex/amslatex/thmtest.tex b/Master/texmf-dist/doc/latex/amslatex/thmtest.tex
deleted file mode 100644
index 21193949e83..00000000000
--- a/Master/texmf-dist/doc/latex/amslatex/thmtest.tex
+++ /dev/null
@@ -1,255 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "thmtest.tex",
-%%%   version   = "2.01",
-%%%   date      = "2004/08/02",
-%%%   time      = "14:18:27 EDT",
-%%%   checksum  = "26819 255 963 8277",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1996, 2004 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Publications Technical Group,
-%%%                201 Charles Street,
-%%%                Providence, RI 02904,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   supported = "yes",
-%%%   keywords  = "latex, amslatex, ams-latex, theorem, proof",
-%%%   abstract  = "This is part of the AMS-\LaTeX{} distribution.
-%%%                It is a sample document illustrating the use of
-%%%                the amsthm package.",
-%%%   docstring = "The checksum field above contains a CRC-16
-%%%                checksum as the first value, followed by the
-%%%                equivalent of the standard UNIX wc (word
-%%%                count) utility output of lines, words, and
-%%%                characters.  This is produced by Robert
-%%%                Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%    Option test file, will be created during the first LaTeX run;
-%    this facility is not available when using an AMS document class.
-\begin{filecontents}{exercise.thm}
-\def\th@exercise{%
-  \normalfont % body font
-  \thm@headpunct{:}%
-}
-\end{filecontents}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\documentclass{article}
-\title{Newtheorem and theoremstyle test}
-\author{Michael Downes\\updated by Barbara Beeton}
-
-\usepackage[exercise]{amsthm}
-
-\newtheorem{thm}{Theorem}[section]
-\newtheorem{cor}[thm]{Corollary}
-\newtheorem{prop}{Proposition}
-\newtheorem{lem}[thm]{Lemma}
-
-\theoremstyle{remark}
-\newtheorem*{rmk}{Remark}
-
-\theoremstyle{plain}
-\newtheorem*{Ahlfors}{Ahlfors' Lemma}
-
-\newtheoremstyle{note}% name
-  {3pt}%      Space above
-  {3pt}%      Space below
-  {}%         Body font
-  {}%         Indent amount (empty = no indent, \parindent = para indent)
-  {\itshape}% Thm head font
-  {:}%        Punctuation after thm head
-  {.5em}%     Space after thm head: " " = normal interword space;
-        %       \newline = linebreak
-  {}%         Thm head spec (can be left empty, meaning `normal')
-
-\theoremstyle{note}
-\newtheorem{note}{Note}
-
-\newtheoremstyle{citing}% name
-  {3pt}%      Space above, empty = `usual value'
-  {3pt}%      Space below
-  {\itshape}% Body font
-  {}%         Indent amount (empty = no indent, \parindent = para indent)
-  {\bfseries}% Thm head font
-  {.}%        Punctuation after thm head
-  {.5em}%     Space after thm head: " " = normal interword space;
-        %       \newline = linebreak
-  {\thmnote{#3}}% Thm head spec
-
-\theoremstyle{citing}
-\newtheorem*{varthm}{}% all text supplied in the note
-
-\newtheoremstyle{break}% name
-  {9pt}%      Space above, empty = `usual value'
-  {9pt}%      Space below
-  {\itshape}% Body font
-  {}%         Indent amount (empty = no indent, \parindent = para indent)
-  {\bfseries}% Thm head font
-  {.}%        Punctuation after thm head
-  {\newline}% Space after thm head: \newline = linebreak
-  {}%         Thm head spec
-
-\theoremstyle{break}
-\newtheorem{bthm}{B-Theorem}
-
-\theoremstyle{exercise}
-\newtheorem{exer}{Exercise}
-
-\swapnumbers
-\theoremstyle{plain}
-\newtheorem{thmsw}{Theorem}[section]
-\newtheorem{corsw}[thmsw]{Corollary}
-\newtheorem{propsw}{Proposition}
-\newtheorem{lemsw}[thmsw]{Lemma}
-
-%    Because the amsmath pkg is not used, we need to define a couple of
-%    commands in more primitive terms.
-\let\lvert=|\let\rvert=|
-\newcommand{\Ric}{\mathop{\mathrm{Ric}}\nolimits}
-
-%    Dispel annoying problem of slightly overlong lines:
-\addtolength{\textwidth}{8pt}
-
-\begin{document}
-\maketitle
-
-\section{Test of standard theorem styles}
-
-Ahlfors' Lemma gives the principal criterion for obtaining lower bounds
-on the Kobayashi metric.
-
-\begin{Ahlfors}
-Let $ds^2 = h(z)\lvert dz\rvert^2$ be a Hermitian pseudo-metric on
-$\mathbf{D}_r$, $h\in C^2(\mathbf{D}_r)$, with $\omega$ the associated
-$(1,1)$-form. If $\Ric\omega\geq\omega$ on $\mathbf{D}_r$,
-then $\omega\leq\omega_r$ on all of $\mathbf{D}_r$ (or equivalently,
-$ds^2\leq ds_r^2$).
-\end{Ahlfors}
-
-\begin{lem}[negatively curved families]
-Let $\{ds_1^2,\dots,ds_k^2\}$ be a negatively curved family of metrics
-on $\mathbf{D}_r$, with associated forms $\omega^1$, \dots, $\omega^k$.
-Then $\omega^i \leq\omega_r$ for all $i$.
-\end{lem}
-
-Then our main theorem:
-\begin{thm}\label{pigspan}
-Let $d_{\max}$ and $d_{\min}$ be the maximum, resp.\ minimum distance
-between any two adjacent vertices of a quadrilateral $Q$. Let $\sigma$
-be the diagonal pigspan of a pig $P$ with four legs.
-Then $P$ is capable of standing on the corners of $Q$ iff
-\begin{equation}\label{sdq}
-\sigma\geq \sqrt{d_{\max}^2+d_{\min}^2}.
-\end{equation}
-\end{thm}
-
-\begin{cor}
-Admitting reflection and rotation, a three-legged pig $P$ is capable of
-standing on the corners of a triangle $T$ iff (\ref{sdq}) holds.
-\end{cor}
-
-\begin{rmk}
-As two-legged pigs generally fall over, the case of a polygon of order
-$2$ is uninteresting.
-\end{rmk}
-
-\section{Custom theorem styles}
-
-\begin{exer}
-Generalize Theorem~\ref{pigspan} to three and four dimensions.
-\end{exer}
-
-\begin{note}
-This is a test of the custom theorem style `note'. It is supposed to have
-variant fonts and other differences.
-\end{note}
-
-\begin{bthm}
-Test of the `linebreak' style of theorem heading.
-\end{bthm}
-
-This is a test of a citing theorem to cite a theorem from some other source.
-
-\begin{varthm}[Theorem 3.6 in \cite{thatone}]
-No hyperlinking available here yet \dots\ but that's not a
-bad idea for the future.
-\end{varthm}
-
-\section{The proof environment}
-
-\begin{proof}
-Here is a test of the proof environment.
-\end{proof}
-
-\begin{proof}[Proof of Theorem \ref{pigspan}]
-And another test.
-\end{proof}
-
-\begin{proof}[Proof \textup(necessity\textup)]
-And another.
-\end{proof}
-
-\begin{proof}[Proof \textup(sufficiency\textup)]
-And another, ending with a display:
-\[
-1+1=2\,. \qedhere
-\]
-\end{proof}
-
-\section{Test of number-swapping}
-
-This is a repeat of the first section but with numbers in theorem heads
-swapped to the left.
-
-Ahlfors' Lemma gives the principal criterion for obtaining lower bounds
-on the Kobayashi metric.
-\begin{Ahlfors}
-Let $ds^2 = h(z)\lvert dz\rvert^2$ be a Hermitian pseudo-metric on
-$\mathbf{D}_r$, $h\in C^2(\mathbf{D}_r)$, with $\omega$ the associated
-$(1,1)$-form. If $\Ric\omega\geq\omega$ on $\mathbf{D}_r$,
-then $\omega\leq\omega_r$ on all of $\mathbf{D}_r$ (or equivalently,
-$ds^2\leq ds_r^2$).
-\end{Ahlfors}
-
-\begin{lemsw}[negatively curved families]
-Let $\{ds_1^2,\dots,ds_k^2\}$ be a negatively curved family of metrics
-on $\mathbf{D}_r$, with associated forms $\omega^1$, \dots, $\omega^k$.
-Then $\omega^i \leq\omega_r$ for all $i$.
-\end{lemsw}
-
-Then our main theorem:
-\begin{thmsw}
-Let $d_{\max}$ and $d_{\min}$ be the maximum, resp.\ minimum distance
-between any two adjacent vertices of a quadrilateral $Q$. Let $\sigma$
-be the diagonal pigspan of a pig $P$ with four legs.
-Then $P$ is capable of standing on the corners of $Q$ iff
-\begin{equation}\label{sdqsw}
-\sigma\geq \sqrt{d_{\max}^2+d_{\min}^2}.
-\end{equation}
-\end{thmsw}
-
-\begin{corsw}
-Admitting reflection and rotation, a three-legged pig $P$ is capable of
-standing on the corners of a triangle $T$ iff (\ref{sdqsw}) holds.
-\end{corsw}
-
-\begin{thebibliography}{99}
-\bibitem{thatone} Dummy entry.
-\end{thebibliography}
-
-\end{document}
diff --git a/Master/texmf-dist/source/latex/amslatex/ams-c1.ins b/Master/texmf-dist/source/latex/amslatex/ams-c1.ins
deleted file mode 100644
index 3145608a278..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/ams-c1.ins
+++ /dev/null
@@ -1,80 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "ams-c1.ins",
-%%%   version   = "2.20",
-%%%   date      = "2004/08/03",
-%%%   time      = "14:18:09 EDT",
-%%%   checksum  = "43968 80 304 2992",
-%%%   author    = "American Mathematical Society",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Electronic Products and Services,
-%%%                P. O. Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   copyright = "Copyright 1999 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   email     = "tech-support@math.ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, amsart, amsbook, amsproc, amsthm, install",
-%%%   supported = "yes",
-%%%   abstract  = "This is an installation file that will generate
-%%%                loadable package and class files when run
-%%%                through \LaTeX{}.",
-%%%   docstring = "The checksum field above contains a CRC-16
-%%%                checksum as the first value, followed by the
-%%%                equivalent of the standard UNIX wc (word
-%%%                count) utility output of lines, words, and
-%%%                characters.  This is produced by Robert
-%%%                Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\def\batchfile{ams-c1.ins}
-\input docstrip.tex
-\preamble
-\endpreamble
-
-\keepsilent
-
-\csname newtoks\endcsname\filesmsg
-\def\dofile#1#2#3{\generateFile{#1}{f}{\from{#2}{#3}}%
-  \filesmsg\expandafter{\the\filesmsg
-    \Msg{* \space\space#1}}}
-
-%    Packages
-\dofile{amsthm.sty}{amsclass.dtx}{amsthm}
-\dofile{upref.sty}{upref.dtx}{}
-\dofile{amsmidx.sty}{amsmidx.dtx}{}
-
-%    Document class amsart:
-\dofile{amsart.cls}{amsclass.dtx}{amsart,classes}
-%    Document class amsbook:
-\dofile{amsbook.cls}{amsclass.dtx}{amsbook,classes}
-%    Document class amsproc:
-\dofile{amsproc.cls}{amsclass.dtx}{amsproc,classes}
-
-%    Document class for printing AMS documentation files:
-\dofile{amsdtx.cls}{amsdtx.dtx}{amsdtx}
-
-\ifToplevel{
-\Msg{******************************************************************}
-\Msg{*}
-\Msg{* To get documentation for the amsart, amsbook, and amsproc}
-\Msg{* documentclasses, run LaTeX on instr-l.tex.}
-\Msg{*}
-\Msg{* To get documentation for the amsthm package, run LaTeX on}
-\Msg{* amsthdoc.tex; see also thmtest.tex.}
-\Msg{*}
-\Msg{******************************************************************}
-}
-
-\endinput
-}
diff --git a/Master/texmf-dist/source/latex/amslatex/ams-m1.ins b/Master/texmf-dist/source/latex/amslatex/ams-m1.ins
deleted file mode 100644
index a03642e51a7..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/ams-m1.ins
+++ /dev/null
@@ -1,69 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "ams-m1.ins",
-%%%   version   = "1.05",
-%%%   date      = "2000/05/25",
-%%%   time      = "16:28:35 EDT",
-%%%   checksum  = "13352 69 258 2600",
-%%%   author    = "American Mathematical Society",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Electronic Products and Services,
-%%%                P. O. Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@math.ams.org (Internet)",
-%%%   supported = "yes",
-%%%   copyright = "Copyright 1999 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   keywords  = "latex, amsmath, ams-latex, installation",
-%%%   abstract  = "This is an installation file that will generate
-%%%                loadable package and class files when run
-%%%                through \LaTeX{}.",
-%%%   docstring = "The checksum field above contains a CRC-16
-%%%                checksum as the first value, followed by the
-%%%                equivalent of the standard UNIX wc (word
-%%%                count) utility output of lines, words, and
-%%%                characters.  This is produced by Robert
-%%%                Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\def\batchfile{ams-m1.ins}
-\input docstrip.tex
-\preamble
-\endpreamble
-
-\keepsilent
-
-\csname newtoks\endcsname\filesmsg
-\def\dofile#1#2#3{\generateFile{#1}{f}{\from{#2}{#3}}%
-  \filesmsg\expandafter{\the\filesmsg
-    \Msg{* \space\space#1}}}
-
-%    Math packages
-\dofile{amsmath.sty}{amsmath.dtx}{}
-\dofile{amsgen.sty}{amsgen.dtx}{}
-\dofile{amstext.sty}{amstext.dtx}{}
-\dofile{amsopn.sty}{amsopn.dtx}{}
-\dofile{amsbsy.sty}{amsbsy.dtx}{}
-\dofile{amscd.sty}{amscd.dtx}{}
-\dofile{amsxtra.sty}{amsxtra.dtx}{}
-
-\ifToplevel{
-\Msg{******************************************************************}
-\Msg{*}
-\Msg{* To produce the User's Guide for amsmath, run amsldoc.tex through}
-\Msg{* LaTeX.}
-\Msg{*}
-\Msg{******************************************************************}
-}
-
-\endinput
diff --git a/Master/texmf-dist/source/latex/amslatex/ams-r1.ins b/Master/texmf-dist/source/latex/amslatex/ams-r1.ins
deleted file mode 100644
index c4a552ebcba..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/ams-r1.ins
+++ /dev/null
@@ -1,43 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "ams-r1.ins",
-%%%   version   = "1.04",
-%%%   date      = "2001/12/24",
-%%%   time      = "12:50:14 EST",
-%%%   author    = "Michael J Downes",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support@ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "A docstrip batch file for the amsrefs package",
-%%%   checksum  = "21160 39 121 1555",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-\def\batchfile{ams-r1.ins}
-\input docstrip.tex
-\preamble
-\endpreamble
-\keepsilent
-\generateFile{pcatcode.sty}{f}{\from{pcatcode.dtx}{}}
-\generateFile{ifoption.sty}{f}{\from{ifoption.dtx}{}}
-\generateFile{rkeyval.sty}{f}{\from{rkeyval.dtx}{}}
-\generateFile{amsrefs.sty}{f}{\from{amsrefs.dtx}{pkg}}
-\generateFile{textcmds.sty}{f}{\from{textcmds.dtx}{pkg}}
-\generateFile{mathscinet.sty}{f}{\from{mathscinet.dtx}{}}
-%\generateFile{amsjpa.sty}{f}{\from{amsjpa.dtx}{}}
-% Remove \endinput from postamble
-\postamble
-\endpostamble
-\generateFile{amsrn.bst}{f}{\from{amsxport.dtx}{bst,sort,plain}}
-\generateFile{amsru.bst}{f}{\from{amsxport.dtx}{bst,plain}}
-\generateFile{amsra.bst}{f}{\from{amsxport.dtx}{bst,sort,alpha}}
-\generateFile{amsry.bst}{f}{\from{amsxport.dtx}{bst,sort,alpha,y2k}}
-\generateFile{amsrs.bst}{f}{\from{amsxport.dtx}{bst,sort,short}}
-%\generateFile{amsj.bib}{f}{\from{amsxport.dtx}{abbrevs}}
-\endinput
diff --git a/Master/texmf-dist/source/latex/amslatex/amsbsy.dtx b/Master/texmf-dist/source/latex/amslatex/amsbsy.dtx
deleted file mode 100644
index 30c4dee1bbf..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/amsbsy.dtx
+++ /dev/null
@@ -1,251 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsbsy.dtx",
-%%%   version   = "1.2d",
-%%%   date      = "1999/11/29",
-%%%   time      = "14:26:42 EST",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Electronic Products and Services,
-%%%                P. O. Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   checksum  = "08988 251 1238 9625",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, bold symbol, pmb",
-%%%   supported = "yes",
-%%%   abstract  = "This is a \LaTeX{} package that provides a command
-%%%                for producing bold math symbols when appropriate
-%%%                fonts exist, and a `poor man's bold' command that
-%%%                can be applied when no appropriate bold font
-%%%                is available.",
-%%%   docstring = "The checksum field above contains a CRC-16
-%%%                checksum as the first value, followed by the
-%%%                equivalent of the standard UNIX wc (word
-%%%                count) utility output of lines, words, and
-%%%                characters.  This is produced by Robert
-%%%                Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-%\iffalse
-%<*driver>
-\documentclass{amsdtx}
-\usepackage{amsbsy}
-\begin{document}
-\title{The \pkg{amsbsy} package}
-\author{Frank Mittelbach\and Rainer Sch\"opf\and Michael Downes}
-\date{Version \fileversion, \filedate}
-\hDocInput{amsbsy.dtx}
-\end{document}
-%</driver>
-%\fi
-%
-% \maketitle
-%
-% \MakeShortVerb\|
-%
-% \section{Introduction}
-%
-%    The package \texttt{amsbsy}, first written in 1989, implements a
-%    few commands for producing \textbf{bold} characters in the `normal'
-%    \emph{math version}.
-% \begin{quote}\em
-%    Note: It is recommended nowadays to use the \pkg{bm} package, which
-%    became available in 1997.
-% \end{quote}
-%
-%    If we have bold fonts which contain the character in question then
-%    we will use these fonts to produce the wanted character. But
-%    sometimes math fonts are only available in a certain weight
-%    (e.g.\ the AMS symbol fonts).
-% \DescribeMacro\pmb
-%    For these cases we provide a command which is called \verb+\pmb+ (an
-%    acronym for \textbf{p}oor \textbf{m}an's \textbf{b}old) with one argument.
-%    The bolder weight is achieved by copying the argument three times in
-%    slightly different positions which is better than nothing but no
-%    match for a real bold font.
-%
-% \DescribeMacro\boldsymbol
-%    There also exists the \verb+\boldsymbol+ command which is better in
-%    all cases where bold fonts exists. This command will internally
-%    switch to the corresponding `bold' \emph{math version} typeset its
-%    argument in this version.
-%
-%    Both commands will preserve the nature of their arguments, i.e.\ if
-%    they get a relational atom their result will again be a relation as
-%    far as \tex/'s mathspacing is concerned.
-%
-%    Since it is good policy to make at least a small test we try to
-%    typeset the infinity sign ($\infty$) first with \verb+\pmb+ and then
-%    with \verb+\boldsymbol+.
-% \[
-%           \pmb{\infty} = \boldsymbol{\infty} \quad ?
-% \]
-% \StopEventually{}
-%
-%    Standard package info.
-%    \begin{macrocode}
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1994/12/01]% LaTeX date must December 1994 or later
-\ProvidesPackage{amsbsy}[1999/11/29 v1.2d]
-%    \end{macrocode}
-%
-% \section{The implementation}
-%
-%    We need some functions from the \pkg{amsgen} package.
-%    \begin{macrocode}
-\RequirePackage{amsgen}
-%    \end{macrocode}
-%
-%\begin{macro}{\boldsymbol}
-%    In implementing boldsymbol, we must take into account \tex/'s
-%    limitation of only 16 mathgroups (math families, in Knuth's
-%    terminology). If we wanted to maintain mathgroups for both the bold
-%    and non-bold version of each math font, it would not take long to
-%    run out of mathgroups. Therefore what we do instead for a bold
-%    symbol is embed it in an \verb|\hbox|; inside that \verb|\hbox|,
-%    when we start another math formula, we can change all the
-%    mathgroups to their bold equivalents.
-%
-%    However, to get the correct math style inside the hbox (display,
-%    text, script or scriptscript) we have to use \verb|\mathchoice|.
-%    Since \verb|\mathversion{bold}| has a lot of overhead, and
-%    \verb|\mathchoice| typesets the argument text four times, we would
-%    rather not put the \verb|\mathversion| command inside each
-%    \verb|\hbox| in the \verb|\mathchoice|; on the other hand,
-%    \verb|\mathversion| gives an error message if it's used in math
-%    mode. Therefore if we want to execute \verb|\mathversion{bold}|
-%    before starting the \verb|\mathchoice| we have to temporarily
-%    disable the \verb|\@nomath| error. (The error message is intended
-%    to keep people from accidentally emboldening a preceding part of a
-%    math formula, since only the mathgroups defined at the end of a
-%    math formula will determine the fonts used in that formula; but we
-%    are going to typeset our bold symbol not in the current formula but
-%    in an embedded formula, so that this danger doesn't apply here.)
-%    \begin{macrocode}
-\DeclareRobustCommand{\boldsymbol}[1]{%
-%    \end{macrocode}
-%    Start a group to localize the change of \verb|\@nomath|:
-%    \begin{macrocode}
-  \begingroup
-%    \end{macrocode}
-%    Disable \verb|\@nomath| so that we don't have to leave math
-%    mode before executing \verb|\mathversion|:
-%    \begin{macrocode}
-  \let\@nomath\@gobble \mathversion{bold}%
-%    \end{macrocode}
-%    \cs{math@atom} is a test macro which looks at its argument and
-%    produces a math atom of the proper class.
-%    \begin{macrocode}
-  \math@atom{#1}{%
-%    \end{macrocode}
-%    Although it is tempting to use \verb|\text| here, to save some
-%    main memory, that caused a bug in the past due to some internal
-%    interactions with \verb|\mathversion|.
-%    \begin{macrocode}
-  \mathchoice%
-    {\hbox{$\m@th\displaystyle#1$}}%
-    {\hbox{$\m@th\textstyle#1$}}%
-    {\hbox{$\m@th\scriptstyle#1$}}%
-    {\hbox{$\m@th\scriptscriptstyle#1$}}}%
-%    \end{macrocode}
-%    End the group we started earlier.
-%    \begin{macrocode}
-  \endgroup}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\math@atom}
-%    The macro \verb+\math@atom+ looks at its argument and produce a
-%    correct math atom, i.e.\ a primitive like \verb+\mathopen+.
-%    Until the day we have a real implementation for all cases we use
-%    the \verb+\binrel@+ command from \amstex/ which can distinguish
-%    between binary, relation and ord atoms.
-%    \begin{macrocode}
-\def\math@atom#1#2{%
-   \binrel@{#1}\binrel@@{#2}}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\pmb}
-%    Poor man's bold command, works by typesetting multiple copies of
-%    the given argument with small offsets.
-%    \begin{macrocode}
-\DeclareRobustCommand{\pmb}{%
-  \ifmmode\else \expandafter\pmb@@\fi\mathpalette\pmb@}
-%    \end{macrocode}
-%
-%    \cs{pmb@@} is called by \cn{pmb} in the non-math-mode case.
-%    Discard the first two arguments which are for the math-mode case.
-%    \begin{macrocode}
-\def\pmb@@#1#2#3{\leavevmode\setboxz@h{#3}%
-   \dimen@-\wdz@
-   \kern-.5\ex@\copy\z@
-   \kern\dimen@\kern.25\ex@\raise.4\ex@\copy\z@
-   \kern\dimen@\kern.25\ex@\box\z@
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\newdimen\pmbraise@
-%    \end{macrocode}
-%    Note: because of the use of \cs{mathpalette}, if \cs{pmb@} is applied to a
-%    single math italic character (or a single character from some other
-%    slanted math font), the italic correction will be added. This will
-%    cause subscripts to fall too far away from the character in some
-%    cases, e.g., $\pmb{T}_1$ or $\pmb{\mathcal{T}}_1$.
-%    \begin{macrocode}
-\def\pmb@#1#2{\setbox8\hbox{$\m@th#1{#2}$}%
-  \setboxz@h{$\m@th#1\mkern.5mu$}\pmbraise@\wdz@
-  \binrel@{#2}%
-  \dimen@-\wd8 %
-  \binrel@@{%
-    \mkern-.8mu\copy8 %
-    \kern\dimen@\mkern.4mu\raise\pmbraise@\copy8 %
-    \kern\dimen@\mkern.4mu\box8 }%
-}
-%    \end{macrocode}
-% \end{macro}
-%
-%    \begin{macrocode}
-\def\binrel@#1{\begingroup
-  \setboxz@h{\thinmuskip0mu
-    \medmuskip\m@ne mu\thickmuskip\@ne mu
-    \setbox\tw@\hbox{$#1\m@th$}\kern-\wd\tw@
-    ${}#1{}\m@th$}%
-%    \end{macrocode}
-%    The \cn{noexpand} here should be unnecessary, but just in case
-%    \ldots
-%    \begin{macrocode}
-  \edef\@tempa{\endgroup\let\noexpand\binrel@@
-    \ifdim\wdz@<\z@ \mathbin
-    \else\ifdim\wdz@>\z@ \mathrel
-    \else \relax\fi\fi}%
-  \@tempa
-}
-%    \end{macrocode}
-%    For completeness, assign a default value for \cs{binrel@@}.
-%    \begin{macrocode}
-\let\binrel@@\relax
-%    \end{macrocode}
-%
-%    The usual \cs{endinput} to ensure that random garbage at the end of
-%    the file doesn't get copied by \fn{docstrip}.
-%    \begin{macrocode}
-\endinput
-%    \end{macrocode}
-%
-% \CheckSum{131}
-% \Finale
diff --git a/Master/texmf-dist/source/latex/amslatex/amscd.dtx b/Master/texmf-dist/source/latex/amslatex/amscd.dtx
deleted file mode 100644
index 7dd765109d1..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/amscd.dtx
+++ /dev/null
@@ -1,333 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amscd.dtx",
-%%%   version   = "2.0",
-%%%   date      = "1999/11/29",
-%%%   time      = "14:30:07 EST",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995, 1999 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Electronic Products and Services,
-%%%                P. O. Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   checksum  = "07428 333 1152 12117",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, commutative diagram",
-%%%   supported = "yes",
-%%%   abstract  = "This is a \LaTeX{} package that adapts the
-%%%                commutative diagram macros of AMS-\TeX{} for
-%%%                use in \LaTeX{}",
-%%%   docstring = "The checksum field above contains a CRC-16
-%%%                checksum as the first value, followed by the
-%%%                equivalent of the standard UNIX wc (word
-%%%                count) utility output of lines, words, and
-%%%                characters.  This is produced by Robert
-%%%                Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-%\iffalse
-%<*driver>
-\documentclass{amsdtx}
-\usepackage{amscd}
-%    Dummy citation to avoid error in an example.
-\bibcite{fre:cichon}{C}
-\begin{document}
-\title{The \pkg{amscd} package}
-\author{Frank Mittelbach\and Rainer Sch\"opf\and Michael Downes}
-\date{Version \fileversion, \filedate}
-\hDocInput{amscd.dtx}
-\end{document}
-%</driver>
-%\fi
-%
-% \maketitle
-%
-% \MakeShortVerb\|
-% \newcommand{\operatorname}[1]{\mathop{\mathrm{#1}}}
-% \newcommand{\per}{\operatorname{per}}
-% \newcommand{\cov}{\operatorname{cov}}
-% \newcommand{\non}{\operatorname{non}}
-% \newcommand{\cf}{\operatorname{cf}}
-% \newcommand{\add}{\operatorname{add}}
-% \newcommand{\End}{\operatorname{End}}
-%
-% \section{Introduction}
-%
-%    The \pkg{amscd} package provides a \env{CD} environment that
-%    emulates the commutative diagram capabilities of \amstex/ version
-%    2.x. This means that only simple rectangular diagrams are
-%    supported, with no diagonal arrows or more exotic features. Many
-%    users will be better served by one of the more powerful diagram
-%    packages such as \pkg{diagram}, \pkg{xypic}, or \pkg{kuvio}.
-%
-%    Example:
-%    \begin{equation}\begin{CD}
-%    S^{{\mathcal{W}}_\Lambda}\otimes T   @>j>>   T\\
-%    @VVV                                    @VV{\End P}V\\
-%    (S\otimes T)/I                  @=      (Z\otimes T)/J
-%    \end{CD}\end{equation}
-% \begin{verbatim}
-% \begin{equation}\begin{CD}
-% S^{{\mathcal{W}}_\Lambda}\otimes T   @>j>>   T\\
-% @VVV                                    @VV{\End P}V\\
-% (S\otimes T)/I                  @=      (Z\otimes T)/J
-% \end{CD}\end{equation}
-% \end{verbatim}
-%    (assuming \cn{End} is defined as an `operator name'.
-%
-%    Another example:
-%
-%    We will make liberal use of Cichon's Diagram \cite{fre:cichon}:
-%    \begin{equation}
-%    \begin{CD}
-%    \cov(\mathcal{L}) @>>> \non(\mathcal{K}) @>>> \cf(\mathcal{K}) @>>>
-%    \cf(\mathcal{L})\\
-%    @VVV @AAA @AAA @VVV\\
-%    \add(\mathcal{L}) @>>> \add(\mathcal{K}) @>>> \cov(\mathcal{K}) @>>>
-%    \non(\mathcal{L})
-%    \end{CD}\end{equation}
-% \begin{verbatim}
-% \begin{equation}\begin{CD}
-% \cov(\mathcal{L}) @>>> \non(\mathcal{K}) @>>> \cf(\mathcal{K}) @>>>
-% \cf(\mathcal{L})\\
-% @VVV @AAA @AAA @VVV\\
-% \add(\mathcal{L}) @>>> \add(\mathcal{K}) @>>> \cov(\mathcal{K}) @>>>
-% \non(\mathcal{L})
-% \end{CD}\end{equation}
-% \end{verbatim}
-%
-% \StopEventually{}
-%
-%    Standard package info.
-%    \begin{macrocode}
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1994/12/01]% LaTeX date must December 1994 or later
-\ProvidesPackage{amscd}[1999/11/29 v2.0]
-%    \end{macrocode}
-%    \begin{macrocode}
-\RequirePackage{amsgen}
-%    \end{macrocode}
-%      Better not to redefine \verb|\math@cr| if it is already defined,
-%      because for CD use only we want to omit the part of the code
-%      related to \verb|\dspbrk@lvl| (see \fn{amsmath.sty}).
-%
-%    [mjd,1999/11/04] These definitions have gone somewhat obsolete; but
-%    we had probably better leave them as they are for backward
-%    compatibility.
-%    \begin{macrocode}
-\@ifundefined{math@cr}{%
-  \def\math@cr{{\ifnum0=`}\fi
-    \@ifstar{\global\@eqpen\@M\math@cr@}%
-          {\global\@eqpen\interdisplaylinepenalty \math@cr@}}
-%    \end{macrocode}
-%    The following section merely duplicates some code from the
-%    \pkg{amsmath} package, in case the \pkg{amscd} package is used by
-%    itself. For documentation of the code refer to \fn{amsmath.dtx}.
-%    \begin{macrocode}
-  \def\math@cr@{\new@ifnextchar[\math@cr@@{\math@cr@@[\z@]}}
-  \def\math@cr@@[#1]{\ifnum0=`{\fi}\math@cr@@@
-    \noalign{\vskip#1\relax}}
-  \def\restore@math@cr{\def\math@cr@@@{\cr}}
-}{}
-\restore@math@cr
-%    \end{macrocode}
-%    [mjd,1999/11/04] These definitions too are somewhat obsolete;
-%    but we had probably better leave them as they are for backward
-%    compatibility.
-%    \begin{macrocode}
-\@ifundefined{rightarrowfill@}{
-  \def\rightarrowfill@#1{\m@th\setboxz@h{$#1-$}\ht\z@\z@
-    $#1\copy\z@\mkern-6mu\cleaders
-    \hbox{$#1\mkern-2mu\box\z@\mkern-2mu$}\hfill
-    \mkern-6mu\mathord\rightarrow$}
-  \def\leftarrowfill@#1{\m@th\setboxz@h{$#1-$}\ht\z@\z@
-    $#1\mathord\leftarrow\mkern-6mu\cleaders
-    \hbox{$#1\mkern-2mu\copy\z@\mkern-2mu$}\hfill
-    \mkern-6mu\box\z@$}
-  \def\leftrightarrowfill@#1{\m@th\setboxz@h{$#1-$}\ht\z@\z@
-    $#1\mathord\leftarrow\mkern-6mu\cleaders
-    \hbox{$#1\mkern-2mu\box\z@\mkern-2mu$}\hfill
-    \mkern-6mu\mathord\rightarrow$}
-}{}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\atdef@#1{\expandafter\def\csname\space @\string#1\endcsname}
-\@ifundefined{Iat}{%
-  \DeclareRobustCommand{\Iat}{\FN@\at@}
-}{}
-\begingroup \catcode`\@=\active
-%    \end{macrocode}
-%    Define math \qc{\@} to replicate its mathcode-dictated behavior.
-%    This is in case \qc{\@} occurs outside of \env{CD}.
-%    \begin{macrocode}
-\csname if\string @compatibility\endcsname
-\else \fam=\mathcode`\@
-  \xdef @{\mathchar\number\fam\space }
-\fi
-\gdef\CDat{\let @=\Iat}
-\endgroup
-\mathcode`\@="8000 % make @ pseudo-active in math
-\def\at@{\let\next@\at@@
- \ifcat\noexpand\next a\else
- \ifcat\noexpand\next0\else
- \ifcat\noexpand\next\relax\else
- \let\next@\at@@@\fi\fi\fi\next@}
-\def\at@@#1{\expandafter
-  \ifx\csname\space @\string#1\endcsname\relax
-    \DN@{\at@@@#1}%
-  \else
-    \DN@{\csname\space @\string#1\endcsname}%
-  \fi\next@}%
-%    \end{macrocode}
-%    The following items should be defined only if they are not
-%    already defined, either to leave the package name untouched (in
-%    the case of \cs{PackageError}) or to avoid redundant allocation
-%    of token or dimen registers.
-%    \begin{macrocode}
-\@ifundefined{default@tag}{%
-  \def\default@tag{%
-    \def\tag{\PackageError{amscd}{\protect\tag\space not allowed
-      here}\@eha}}%
-}{}%
-\@ifundefined{at@@@}{%
-  \def\at@@@{\PackageError{amscd}{\Invalid@@ @}{\the\athelp@}\char64\relax}
-}{}
-\@ifundefined{athelp@}{\csname newhelp\endcsname\athelp@
-{Only certain combinations beginning with @ make sense to me.^^J%
-I'll assume you wanted @@ for a printed @.}}{}
-\@ifundefined{minaw@}{\newdimen\minaw@}{}
-\@ifundefined{bigaw@}{\newdimen\bigaw@}{}
-%    \end{macrocode}
-%
-%      Assignment of a couple of dimensions, and initialization of
-%      \verb=\ampersand@=. We check to see if we need to define
-%      \verb=\minaw@= and \verb=\bigaw@=.
-%    \begin{macrocode}
-\minaw@11.111pt
-\newdimen\minCDarrowwidth
-\minCDarrowwidth2.5pc
-\newif\ifCD@
-\let\ampersand@\relax
-%    \end{macrocode}
-%
-%      Added \verb|\restore@math@cr\default@tag| to fix line numbering
-%      problems, 7-JUN-1991. Suggested by I.~Zakharevich.
-%    \begin{macrocode}
-\newenvironment{CD}{%
-  \CDat
-  \bgroup\relax\iffalse{\fi\let\ampersand@&\iffalse}\fi
-  \CD@true\vcenter\bgroup\let\\\math@cr\restore@math@cr\default@tag
-  \tabskip\z@skip\baselineskip20\ex@
-  \lineskip3\ex@\lineskiplimit3\ex@\halign\bgroup
-  &\hfill$\m@th##$\hfill\crcr
-}{%
-  \crcr\egroup\egroup\egroup
-}
-%    \end{macrocode}
-%
-% \begin{macro}{\CD@check}
-%    This check is used by all macros that must not appear outside the
-%    \env{CD} environment. The first argument is the symbol to be used
-%    after \verb+@+, the second one the action to be performed.
-%
-%    Once again we use the trick of defining a temporary control
-%    sequence \verb+\next@+ and calling it after the final \verb+\fi+.
-%    This is not absolutely necessary, but it ensures that the
-%    conditional text is processed in one and the same column
-%    of the enclosing alignment.
-%    \begin{macrocode}
-\def\CD@check#1#2{\ifCD@\DN@{#2}\else
-  \DN@{\PackageError{amscd}{@\protect#1 not
-    allowed outside of the CD environment}\@eha}%
-  \fi\next@}
-%    \end{macrocode}
-% \end{macro}
-%
-%    \begin{macrocode}
-\atdef@>#1>#2>{\ampersand@
-  \ifCD@ \global\bigaw@\minCDarrowwidth \else \global\bigaw@\minaw@ \fi
-  \setboxz@h{$\m@th\scriptstyle\;{#1}\;\;$}%
-  \ifdim\wdz@>\bigaw@\global\bigaw@\wdz@\fi
-%    \end{macrocode}
-%      If \verb|#2| is empty we can save some work.
-%    \begin{macrocode}
-  \@ifnotempty{#2}{\setbox\@ne\hbox{$\m@th\scriptstyle\;{#2}\;\;$}%
-    \ifdim\wd\@ne>\bigaw@\global\bigaw@\wd\@ne\fi}%
- \ifCD@\enskip\fi
-   \mathrel{\mathop{\hbox to\bigaw@{\rightarrowfill@\displaystyle}}%
-     \limits^{#1}\@ifnotempty{#2}{_{#2}}}%
- \ifCD@\enskip\fi \ampersand@}
-%
-\atdef@<#1<#2<{\ampersand@
-  \ifCD@ \global\bigaw@\minCDarrowwidth \else \global\bigaw@\minaw@ \fi
-  \setboxz@h{$\m@th\scriptstyle\;\;{#1}\;$}%
-  \ifdim\wdz@>\bigaw@ \global\bigaw@\wdz@ \fi
-  \@ifnotempty{#2}{\setbox\@ne\hbox{$\m@th\scriptstyle\;\;{#2}\;$}%
-    \ifdim\wd\@ne>\bigaw@ \global\bigaw@\wd\@ne \fi}%
-  \ifCD@\enskip\fi
-    \mathrel{\mathop{\hbox to\bigaw@{\leftarrowfill@\displaystyle}}%
-      \limits^{#1}\@ifnotempty{#2}{_{#2}}}%
-  \ifCD@\enskip\fi \ampersand@}
-%    \end{macrocode}
-%
-%      Variants of the above two arrows, using \verb|(| and \verb|)|
-%      characters instead of \verb|<| and \verb|>| characters, are
-%      provided for those whose keyboards don't have the latter.
-%    \begin{macrocode}
-\begingroup \catcode`\~=\active \lccode`\~=`\@
-\lowercase{%
-  \global\atdef@)#1)#2){~>#1>#2>}
-  \global\atdef@(#1(#2({~<#1<#2<}
-}% end lowercase
-\endgroup
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\atdef@ A#1A#2A{\CD@check{A..A..A}{\llap{$\m@th\vcenter{\hbox
-  {$\scriptstyle#1$}}$}\Big\uparrow
-  \rlap{$\m@th\vcenter{\hbox{$\scriptstyle#2$}}$}&&}}
-%
-\atdef@ V#1V#2V{\CD@check{V..V..V}{\llap{$\m@th\vcenter{\hbox
-  {$\scriptstyle#1$}}$}\Big\downarrow
-  \rlap{$\m@th\vcenter{\hbox{$\scriptstyle#2$}}$}&&}}
-%
-\atdef@={\CD@check={&\enskip\mathrel
-  {\vbox{\hrule\@width\minCDarrowwidth\vskip2\ex@\hrule\@width
-  \minCDarrowwidth}}\enskip&}}
-%
-\atdef@|{\CD@check|{\Big\Vert&&}}
-%
-\atdef@\vert{\CD@check\vert{\Big\Vert&&}}
-%
-\atdef@.{\CD@check.{&&}}
-%    \end{macrocode}
-%
-%    The \cn{pretend} command has weird syntax that doesn't fit well
-%    with standard \latex/ syntax so we leave it undone, at least for
-%    now. [mjd,1994/10/27]
-%    \begin{macrocode}
-%\def\pretend#1\haswidth#2{\setboxz@h{$\m@th\scriptstyle{#2}$}\hbox
-% to\wdz@{\hfill$\m@th\scriptstyle{#1}$\hfill}}
-%    \end{macrocode}
-%
-%    The usual \cs{endinput} to ensure that random garbage at the end of
-%    the file doesn't get copied by \fn{docstrip}.
-%    \begin{macrocode}
-\endinput
-%    \end{macrocode}
-%
-% \CheckSum{459}
-% \Finale
diff --git a/Master/texmf-dist/source/latex/amslatex/amsclass.dtx b/Master/texmf-dist/source/latex/amslatex/amsclass.dtx
deleted file mode 100644
index 956b379d23a..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/amsclass.dtx
+++ /dev/null
@@ -1,5204 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsclass.dtx",
-%%%   version   = "2.20",
-%%%   date      = "2004/08/06",
-%%%   time      = "13:03:53 EDT",
-%%%   checksum  = "53558 5204 20497 185872",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995, 1999, 2004
-%%%                American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Publications Technical Group,
-%%%                201 Charles Street,
-%%%                Providence, RI 02904,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, AMS, documentclass, theorem",
-%%%   supported = "yes",
-%%%   abstract  = "This is the source for the amsthm package and three
-%%%                AMS document classes: amsart, amsproc, and amsbook.
-%%%                They are designed for use with LaTeX.",
-%%%   docstring = "The checksum field above contains a CRC-16 checksum
-%%%                as the first value, followed by the equivalent of
-%%%                the standard UNIX wc (word count) utility output of
-%%%                lines, words, and characters.  This is produced by
-%%%                Robert Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-%
-% \iffalse
-%<*driver>
-\documentclass{amsdtx}
-
-\CodelineIndex
-
-\begin{document}
-\title{%
-  The \cls{amsart}, \cls{amsproc}, and \cls{amsbook} document~classes}
-\author{American Mathematical Society\\Michael Downes\\
-  updated by Barbara Beeton}
-\date{Version \fileversion, \filedate}
-\hDocInput{amsclass.dtx}
-\end{document}
-%</driver>
-% \fi
-%
-% \maketitle
-%
-% \MakeShortVerb\|
-%
-%  \section{Introduction}
-%    This file (\fn{amsclass.dtx}) is the master file for three \latex/
-%    document classes, \cls{amsart}, \cls{amsproc}, and \cls{amsbook},
-%    which are intended for articles and books containing mathematical
-%    research. They produce output that follows the style conventions of
-%    American Mathematical Society publications. The theorem setup
-%    features of these document classes are also available in a separate
-%    package, \pkg{amsthm}.
-%
-% \StopEventually{}
-%
-%  \section{Implementation}
-%
-%    Three document class files and one package file (\fn{amsthm.sty})
-%    are produced from this source. Most of the code of the \fn{amsthm}
-%    package is used in all four derived files. Most of the remaining
-%    code is used in all three document class files. Fine tuning is done
-%    with additional docstrip guards.
-%
-%    The usual name, date, and version information. (Note: the reason
-%    each \cs{ProvidesClass} command is placed on a line by itself, with
-%    separate begin and end guards for docstripping, is to make
-%    automatic update of file date and version slightly easier and more
-%    robust.)
-%
-%    \begin{macrocode}
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1995/06/01]% LaTeX date must be June 1995 or later
-%<*amsart>
-\ProvidesClass{amsart}[2004/08/06 v2.20]
-%</amsart>
-%<*amsproc>
-\ProvidesClass{amsproc}[2004/08/06 v2.20]
-%</amsproc>
-%<*amsbook>
-\ProvidesClass{amsbook}[2004/08/06 v2.20]
-%</amsbook>
-%    \end{macrocode}
-%    For \pkg{amsthm} we need to guard against redundant loading via
-%\begin{verbatim}
-% \documentclass{amsart}
-% \usepackage{amsthm}
-%\end{verbatim}
-%    because in that case the usual \cs{RequirePackage} mechanism for
-%    avoiding redundant loading will not apply. We need to simulate the
-%    loading of the \pkg{amsthm} package.
-%    \begin{macrocode}
-%<*classes>
-\global\expandafter\let\csname ver@amsthm.sty\expandafter\endcsname
-  \csname ver@\@currname.\@currext\endcsname
-%</classes>
-%<*amsthm>
-\ProvidesPackage{amsthm}[2004/08/06 v2.20]
-%</amsthm>
-%    \end{macrocode}
-%
-%    The following code is shared by the classes and the \pkg{amsthm}
-%    package. Cf.~\fn{amsgen.sty}.
-%    \begin{macrocode}
-\let\@xp=\expandafter
-\let\@nx=\noexpand
-\def\@oparg#1[#2]{\@ifnextchar[{#1}{#1[#2]}}
-\long\def\@ifempty#1{\@xifempty#1@@..\@nil}
-\long\def\@xifempty#1#2@#3#4#5\@nil{%
-  \ifx#3#4\@xp\@firstoftwo\else\@xp\@secondoftwo\fi}
-\long\def\@ifnotempty#1{\@ifempty{#1}{}}
-\def\setboxz@h{\setbox\z@\hbox}
-\def\@addpunct#1{%
-  \relax\ifhmode
-    \ifnum\spacefactor>\@m \else#1\fi
-  \fi}
-%    \end{macrocode}
-%    \cn{nopunct} should have a value for \cn{spacefactor} that is
-%    not used for \cn{frenchspacing}.
-%    \begin{macrocode}
-\def\nopunct{\spacefactor 1007 }
-\def\frenchspacing{\sfcode`\.1006\sfcode`\?1005\sfcode`\!1004%
-  \sfcode`\:1003\sfcode`\;1002\sfcode`\,1001 }
-%    \end{macrocode}
-%
-%    If this class is loaded by a parent document class, then we want
-%    to use the name of the parent class. Otherwise the name of the
-%    current class file.
-%    \begin{macrocode}
-%<*classes>
-\def\@tempa#1#2\@nil{\edef\@classname{#1}}
-\expandafter\@tempa\@currnamestack{}{}{}\@nil
-\ifx\@classname\@empty \edef\@classname{\@currname}\fi
-%    \end{macrocode}
-%
-%  \subsection{Support for conditional text}
-%
-%    [This needs to be documented in the users' guide, including the
-%    idea of using \verb'\for{5ed}{\linebreak}' to mark edition-specific
-%    line and page breaks. [mjd,1999/12/27]]
-%
-%    We would sometimes like to be able to mark fragments of text to be
-%    conditionally discarded or typeset. For example in the title of a
-%    section if we want to add a linebreak but prevent this linebreak
-%    from also taking effect in the table of contents.
-%
-%    Certain kinds of switches need to be built into the low-level
-%    structure of our document class in order to be useful. For example,
-%    inside the toc we need to arrange for an \qq{in-toc?} test to yield
-%    true.
-%
-%    \begin{macrocode}
-\def\@True{00}
-\def\@False{01}
-\newcommand\newswitch[2][False]{%
-  \expandafter\@ifdefinable\csname ?@#2\endcsname{%
-    \global\expandafter\let\csname ?@#2\expandafter\endcsname
-      \csname @#1\endcsname
-  }%
-}
-\newcommand{\setFalse}[1]{%
-  \expandafter\let\csname ?@#1\endcsname\@False
-}
-\newcommand{\setTrue}[1]{%
-  \expandafter\let\csname ?@#1\endcsname\@True
-}
-%    \end{macrocode}
-%    The empty switch is by default false; i.e., if you write
-%\begin{verbatim}
-% \for{}{...}
-%\end{verbatim}
-%    the material will be discarded.
-%    \begin{macrocode}
-\newswitch{}
-%    \end{macrocode}
-%
-%    To get a line break in a section title but not in the table of
-%    contents line for that section, use
-%    \verb'\except{toc}{\linebreak}'. (Presumably you are already giving
-%    a shortened running head version separately, if applicable.)
-%    \begin{macrocode}
-\DeclareRobustCommand{\except}[1]{%
-  \if\csname ?@#1\endcsname \expandafter\@gobble
-  \else \expandafter\@firstofone
-  \fi
-}
-\DeclareRobustCommand{\for}[1]{%
-  \if\csname ?@#1\endcsname \expandafter\@firstofone
-  \else \expandafter\@gobble
-  \fi
-}
-%    \end{macrocode}
-%
-%    The \cn{forany} command needs to run through a comma-separated list
-%    of switch names and print its second argument if any of the
-%    switches are true.
-%    \begin{macrocode}
-\DeclareRobustCommand{\forany}[1]{%
-  \csname for@any@01\endcsname#1,?,\@nil
-}
-\@namedef{for@any@\@False}#1,{%
-  \csname for@any@%
-    \csname ?@\zap@space#1 \@empty\endcsname
-  \endcsname
-}
-\@namedef{?@?}{x}
-\@namedef{for@any@\@True}#1\@nil#2{#2}
-\def\for@any@x{\@car\@gobble}
-%    \end{macrocode}
-%
-%  \subsection{Options}
-%  \subsubsection{Notes}
-%    Options will be processed in the order they are declared;
-%    cf.~\cs{ProcessOptions}.
-%
-%  \subsubsection{Paper size}
-%
-%    The option \opt{letterpaper} (default) sets the target paper width
-%    and height to U.S. letter size, 8.5 in x 11 in. An option
-%    \opt{a4paper} is also supported, but we don't include some of the
-%    more unusual paper options (\opt{legalpaper}, \opt{a5paper},
-%    \opt{executivepaper}) of the generic \cls{article} class. For A4
-%    paper we not only change the paper size but also add 4pc to the
-%    normal textheight of 50.5pc (the difference between 297mm and 11in
-%    is 50pt).
-%    \begin{macrocode}
-\DeclareOption{a4paper}{\paperheight 297mm\paperwidth 210mm
-  \textheight 54.5pc }
-\DeclareOption{letterpaper}{\paperheight 11in\paperwidth 8.5in }
-%    \end{macrocode}
-%
-%    The options \opt{landscape} and \opt{portrait} swap paper height
-%    and width.
-%    \begin{macrocode}
-\DeclareOption{landscape}{\@tempdima\paperheight
-  \paperheight\paperwidth \paperwidth\@tempdima}
-\DeclareOption{portrait}{}
-%    \end{macrocode}
-%
-%  \subsubsection{Two-sided or one-sided printing}
-%
-%    For two-sided printing we set the switch \cs{if@twoside} which
-%    will cause the margins to be adjusted so that the type blocks of
-%    back-to-back pages will line up. The \cs{if@mparswitch} makes margin
-%    paragraphs print in the outside margin.
-%    \begin{macrocode}
-\DeclareOption{oneside}{\@twosidefalse \@mparswitchfalse}
-\DeclareOption{twoside}{\@twosidetrue  \@mparswitchtrue}
-%    \end{macrocode}
-%
-%  \subsubsection{Draft or final version}
-%
-%    The \opt{draft} option causes overfull lines to be marked with
-%    a black slug in the right margin.
-%    \begin{macrocode}
-\DeclareOption{draft}{\overfullrule5\p@
-  \ClassWarningNoLine{\@classname}{%
-    When the draft option is used, the
-      \protect\includegraphics\MessageBreak
-    command will print blank placeholder boxes\MessageBreak
-    for the graphics}%
-}
-\DeclareOption{final}{\overfullrule\z@ }
-%    \end{macrocode}
-%
-%  \subsubsection{Posting date}
-%
-%    The date when an article is officially posted to the WWW is recorded
-%    in a variable \cs{@dateposted} with the \cn{dateposted} command.
-%
-%    \begin{macrocode}
-\def\dateposted#1{\def\@dateposted{#1}}%
-\let\@dateposted\@empty
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-%<*amsart>
-\def\@setdateposted{%
-  \newline Article electronically published on \@dateposted}
-%</amsart>
-%    \end{macrocode}
-%
-%  \subsubsection{Logos}
-%
-%    The following logo is used for regular journal articles. The one
-%    for proceedings articles and the one for e-only journals are given
-%    separately.
-%    \begin{macrocode}
-%<*amsart>
-\def\article@logo{%
-  \set@logo{%
-    \publname
-%    \end{macrocode}
-%    Current volume might be empty when an article is first posted to
-%    the WWW. In that case leave out the issue-specific info.
-%    \begin{macrocode}
-    \ifx\@empty\currentvolume
-    \else \newline\volinfo, \pageinfo
-    \fi
-    \newline \@PII
-    \ifx\@empty\@dateposted \else \@setdateposted\fi
-  }%
-}
-\def\eonly@logo{%
-  \set@logo{%
-    \publname
-    \newline\volinfo, \pageinfo
-    \ifx\@empty\@dateposted \else \@setdateposted\fi
-    \newline \@PII
-  }%
-}
-%</amsart>
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-%<*amsart|amsproc>
-\def\@logofont{\fontsize{6}{7\p@}\selectfont}
-\long\def\set@logo#1{%
-  \vbox to\headheight{%
-    \@parboxrestore \@logofont
-    \noindent#1\par\vss
-  }%
-}
-%</amsart|amsproc>
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-%<*amsproc>
-\def\procart@logo{%
-  \set@logo{\publname
-    \ifx\@empty\volinfo \else\newline\volinfo\fi}%
-}
-%</amsproc>
-%    \end{macrocode}
-%
-%  \subsubsection{E-only journal}
-%
-%    Electronic-only journals (for \cls{amsart} only) have different
-%    information in the series logo than paper-only or dual journals.
-%    Only the volume number is reported (no issue or year), and the
-%    posting date is added following the page numbers.  [bnb, 1996/10/31]
-%
-%    This option will be invoked only from publication-specific \fn{.cls}
-%    files.
-%    \begin{macrocode}
-%<*amsart>
-\DeclareOption{e-only}{%
-  \def\volinfo{Volume \currentvolume}%
-  \dateposted{Xxxx XX, XXXX}%
-  \def\@setdateposted{\ (\@dateposted)}%
-  \let\article@logo\eonly@logo
-}
-%</amsart>
-%    \end{macrocode}
-%
-%  \subsubsection{Title page}
-%
-%    The title and related information can optionally be printed on a
-%    separate page.
-%    \begin{macrocode}
-\newif\if@titlepage
-\DeclareOption{titlepage}{\@titlepagetrue}
-\DeclareOption{notitlepage}{\@titlepagefalse}
-%    \end{macrocode}
-%
-%  \subsubsection{Start on right- or left-hand page}
-%
-%    For some book series, it's permissible to start chapters on a
-%    left-hand page.  Default to `openright', the usual AMS book style.
-%    \begin{macrocode}
-%<*amsbook>
-\newif\if@openright
-\DeclareOption{openright}{\@openrighttrue}
-\DeclareOption{openany}{\@openrightfalse}
-\@openrighttrue
-%</amsbook>
-%    \end{macrocode}
-%
-%  \subsubsection{Two-column printing}
-%
-%    Two-column layout is handled through a predefined internal switch.
-%    \begin{macrocode}
-\DeclareOption{onecolumn}{\@twocolumnfalse}
-\DeclareOption{twocolumn}{\@twocolumntrue}
-%    \end{macrocode}
-%
-%  \subsubsection{The nomath option}
-%
-%    The \opt{nomath} option causes most of the extra math features to
-%    be omitted.  Some utility functions will be defined below if this
-%    option is specified.
-%    \begin{macrocode}
-\DeclareOption{nomath}{}
-%    \end{macrocode}
-%
-%  \subsubsection{Some font options}
-%
-%    The \opt{noamsfonts} option means to avoid declaring math alphabets
-%    or symbol fonts for the extra math fonts in the AMSFonts set. If
-%    these fonts are declared, it means that the corresponding \fn{.tfm}
-%    files are required even for documents that do not use any symbols
-%    from those fonts. So we allow optionally to not declare them, for
-%    convenience of users who don't have those fonts on their system and
-%    don't want the hassle of getting them.
-%    \begin{macrocode}
-\DeclareOption{noamsfonts}{}
-%    \end{macrocode}
-%    The \opt{psamsfonts} option, passed on to the \pkg{amsfonts} package,
-%    means that alternative \fn{.fd} files should be used that do not
-%    refer to \fn{.tfm} files for sizes 6,8,9 (which are not present in
-%    the PostScript (Type 1) AMS fonts set from Y\&Y/Blue Sky Research).
-%    This should also trigger the \opt{cmex10} option of \pkg{amsmath},
-%    to avoid trying to load sizes 7--9 of \fn{cmex}.
-%    \begin{macrocode}
-\DeclareOption{psamsfonts}{%
-  \PassOptionsToPackage{psamsfonts}{amsfonts}%
-  \PassOptionsToPackage{cmex10}{amsmath}}
-%    \end{macrocode}
-%
-%  \subsubsection{Equation numbering on the left or right}
-%
-%    The option \opt{leqno}---equation numbers on the left---is the
-%    default in AMS styles. Therefore we provide also a \opt{reqno}
-%    option.
-%    \begin{macrocode}
-\newif\iftagsleft@
-\DeclareOption{leqno}{%
-  \tagsleft@true \PassOptionsToPackage{leqno}{amsmath}}
-\DeclareOption{reqno}{%
-  \tagsleft@false \PassOptionsToPackage{reqno}{amsmath}}
-%    \end{macrocode}
-%
-%  \subsubsection{Vertical centering of equation numbers}
-%    For multiline equations the equation number is by default centered
-%    vertically on the total height of the equation. To make the
-%    equation number print on the first line (for left-hand
-%    numbers) or the last line (right-hand numbers), there is a
-%    \opt{tbtags} option `top/bottom tags'.
-%    \begin{macrocode}
-\newif\ifctagsplit@
-\DeclareOption{centertags}{%
-  \ctagsplit@true \PassOptionsToPackage{centertags}{amsmath}}
-\DeclareOption{tbtags}{%
-  \ctagsplit@false \PassOptionsToPackage{tbtags}{amsmath}}
-%    \end{macrocode}
-%
-%  \subsubsection{Flush left displays}
-%
-%    The option \opt{fleqn} causes displayed equations to print
-%    aligned on the left instead of centered, with an indentation
-%    of \cs{mathindent} from the prevailing left margin. If the
-%    \pkg{amsmath} package is loaded, most of this code will be
-%    overridden, but it seems we need it anyway because of the
-%    possibility of the \opt{nomath} class option.
-%
-%    \begin{macrocode}
-\DeclareOption{fleqn}{}%
-%    \end{macrocode}
-%
-%  \subsubsection{Dealing with font sizes}
-%
-%  \begin{macro}{\@mainsize}
-%  \begin{macro}{\@ptsize}
-%    Instead of the miserly \cs{@ptsize} variable from \latex/'s
-%    ancient history that contains only the last digit of the main
-%    typesize, we set up a proper variable \cs{@mainsize} that
-%    contains all the digits of the main typesize. Just in case it is
-%    needed for someone using an old package, we will keep
-%    \cs{@ptsize} also.
-%    \begin{macrocode}
-\newcommand{\@mainsize}{10}
-\newcommand{\@ptsize}{0}
-%    \end{macrocode}
-%  \end{macro}
-%  \end{macro}
-%
-%  \begin{macro}{\larger}
-%  \begin{macro}{\smaller}
-%    This function is an easy byproduct of the work done to fold
-%    typesize-specific code into the main class file. The range of font
-%    sizes is \cn{normalsize}, \cn{small}, \cn{Small}, \cn{SMALL},
-%    \cn{tiny}, \cn{Tiny}, \cn{large}, \cn{Large}, \cn{LARGE},
-%    \cn{huge}, \cn{Huge}. Spaces are left at either end of the case
-%    statement to accommodate adding \cn{TINY} and \cn{HUGE} in the
-%    future but it's not clear that they're really needed.
-%    \begin{macrocode}
-\newcommand{\larger}[1][1]{%
-  \count@\@currsizeindex \advance\count@#1\relax
-  \ifnum\count@<\z@ \count@\z@ \else\ifnum\count@>12 \count@12 \fi\fi
-%    \end{macrocode}
-%    The various size-changing commands \cn{normalsize}, etc., will take
-%    care of updating \cs{@currsizeindex}.
-%    \begin{macrocode}
-  \ifcase\count@
-    \Tiny\or\Tiny\or\tiny\or\SMALL\or\Small\or\small
-    \or\normalsize
-    \or\large\or\Large\or\LARGE\or\huge\or\Huge\else\Huge
-  \fi
-}
-\newcommand{\smaller}[1][1]{\larger[-#1]}
-%    \end{macrocode}
-%  \end{macro}
-%  \end{macro}
-%
-%    The \cs{@adjustvertspacing} function adapts some vertical spacing
-%    amounts to the current type size. We don't expect large sections of
-%    vertical text to occur in the extraordinarily small or large type
-%    sizes, so the \cs{@adjustvertspacing} function is only called in
-%    the range between `footnote' size and `Large' size. Notice that no
-%    shrinkability is used.
-%    \begin{macrocode}
-\def\@adjustvertspacing{%
-%    \end{macrocode}
-%    \cs{big/med/smallskipamount} are generic space values that will be
-%    used by the commands \cn{bigskip}, \cn{medskip}, \cn{smallskip}. We
-%    also link the spacing around displayed equations to these amounts.
-%    \begin{macrocode}
-  \bigskipamount.7\baselineskip plus.7\baselineskip
-  \medskipamount\bigskipamount \divide\medskipamount\tw@
-  \smallskipamount\medskipamount \divide\smallskipamount\tw@
-  \abovedisplayskip\medskipamount
-  \belowdisplayskip \abovedisplayskip
-%    \end{macrocode}
-%    The above-display short space is zero but with the same
-%    stretchability as the above-display normal space. And the
-%    below-display short space is similar, but has a base value equal to
-%    \cs{smallskipamount}. Use of the multiplier |1| is an arcane \TeX{}
-%    trick that coerces the skip value to a dimen value, i.e., gives us
-%    the base value of the skip register without the stretch or shrink
-%    values.
-%    \begin{macrocode}
-  \abovedisplayshortskip\abovedisplayskip
-  \advance\abovedisplayshortskip-1\abovedisplayskip
-  \belowdisplayshortskip\abovedisplayshortskip
-  \advance\belowdisplayshortskip 1\smallskipamount
-%    \end{macrocode}
-%    The traditional value for \cs{jot} is 3pt, which we generalize
-%    to \cs{baselineskip}/4. This is used to adjust interline spacing in
-%    multiline displayed equations.
-%    \begin{macrocode}
-  \jot\baselineskip \divide\jot 4 \relax
-}
-%    \end{macrocode}%
-%
-%    We fill out the range of typesize changing commands to a full
-%    eleven: five large/huge commands and five small/tiny commands. (The
-%    capitalization of the command names suggests that there should
-%    actually be thirteen---add \cn{TINY} and \cn{HUGE}---but let's be
-%    conservative and leave those out until a real need for them is
-%    known to exist.) An unavoidable side effect is that \cn{tiny} now
-%    selects 6pt instead of 5pt by default.
-%
-%    In version 1.1 of \cls{amsart} and \cls{amsbook} \cn{small} was
-%    the same as \cn{footnotesize} (\cls{amsproc} didn't exist in v. 1.1).
-%
-%    The only size-changing command that is predefined by \latex/ is
-%    \cn{normalsize}; that's why it's the only one for which we use
-%    \cn{renewcommand} below.
-%    \begin{macrocode}
-\renewcommand\normalsize{\@xsetfontsize\normalsize 6%
-  \@adjustvertspacing \let\@listi\@listI}
-\DeclareRobustCommand{\Tiny}{\@xsetfontsize\Tiny 1}
-\DeclareRobustCommand{\tiny}{\@xsetfontsize\tiny 2}
-\DeclareRobustCommand{\SMALL}{\@xsetfontsize\SMALL 3}
-\DeclareRobustCommand{\Small}{\@xsetfontsize\Small 4%
-  \@adjustvertspacing
-  \def\@listi{\topsep\smallskipamount \parsep\z@skip \itemsep\z@skip
-    \leftmargin=\leftmargini
-    \labelwidth=\leftmargini \advance\labelwidth-\labelsep
-  }%
-}
-\DeclareRobustCommand{\small}{\@xsetfontsize\small 5\@adjustvertspacing}
-%    \end{macrocode}
-%    For backward compatibility we had better define \cn{footnotesize}
-%    and \cn{scriptsize}. Also there is the small discrepancy with
-%    \cn{tiny} to worry about.
-%    \begin{macrocode}
-\def\footnotesize{\Small}
-\def\scriptsize{\SMALL}
-%    \end{macrocode}
-%
-%    The sizes above 10pt use magstep values, stored in the functions
-%    \cs{@xipt}, \cs{@xiipt}, etc.
-%    \begin{macrocode}
-\DeclareRobustCommand{\large}{\@xsetfontsize\large 7\@adjustvertspacing}
-\DeclareRobustCommand{\Large}{\@xsetfontsize\Large 8\@adjustvertspacing}
-\DeclareRobustCommand{\LARGE}{\@xsetfontsize\LARGE 9}
-\DeclareRobustCommand{\huge}{\@xsetfontsize\huge{10}}
-\DeclareRobustCommand{\Huge}{\@xsetfontsize\Huge{11}}
-%\DeclareRobustCommand\HUGE{\@xsetfontsize\HUGE{12}}
-%    \end{macrocode}
-%
-%    So now we had better define the \cs{@xsetfontsize} function.
-%    The size-changing commands use \cs{@setfontsize} instead of
-%    \cn{fontsize} to (a)~give an error message if used in math mode and
-%    (b)~set the \cs{@currsize} variable.
-%    \begin{macrocode}
-\def\@xsetfontsize#1#2{%
-  \chardef\@currsizeindex#2\relax
-  \edef\@tempa{\@nx\@setfontsize\@nx#1%
-    \@xp\ifcase\@xp\@currsizeindex\@typesizes
-%    \end{macrocode}
-%    Add nonsense values 99/99 at the end just in case some extreme
-%    error turns up.
-%    \begin{macrocode}
-      \else{99}{99}\fi}%
-  \@tempa
-}
-%    \end{macrocode}
-%    For the record let's initialize \cs{@currsizeindex}.
-%    \begin{macrocode}
-\chardef\@currsizeindex=6
-%    \end{macrocode}
-%
-%    Set page-breaking penalties to prevent all widows, orphans, and
-%    hyphens at the end of a page.
-%    \begin{macrocode}
-\widowpenalty=10000
-\clubpenalty=10000
-\brokenpenalty=10000
-%    \end{macrocode}
-%
-%    Set some default linespacing values. The variable \cs{linespacing}
-%    is usually the normal interline space in the main text. It is used
-%    to specify vertical space for elements such as section heads and
-%    theorems in proportion to the normal interline space.
-%    \begin{macrocode}
-\newdimen\linespacing
-\lineskip=1pt \lineskiplimit=1pt
-\normallineskip=1pt \normallineskiplimit=1pt
-\let\baselinestretch=\@empty
-%    \end{macrocode}
-%
-%    Settings for \cn{textheight} and \cn{textwidth}. We start with the
-%    value 50.5pc specified in AMS journal specifications as the total
-%    height of the type block and then subtract the running head height
-%    and adjust for \cs{topskip} to get the proper value for the text
-%    block.
-%    \begin{macrocode}
-\headheight=8pt \headsep=14pt
-%<amsbook>\footskip=18pt
-%<amsart|amsproc>\footskip=12pt
-\textheight=50.5pc \topskip=10pt
-\textwidth=30pc
-\columnsep=10pt \columnseprule=0pt
-%    \end{macrocode}
-%    Some settings for marginpars.
-%    \begin{macrocode}
-\marginparwidth=90pt
-\marginparsep=11pt
-\marginparpush=5pt
-%    \end{macrocode}
-%    To avoid setting text before begin-document, we postpone the
-%    setting of \cs{footnotesep} using \cs{AtBeginDocument}.
-%    \begin{macrocode}
-\AtBeginDocument{\settoheight{\footnotesep}{\footnotesize M$^1$}}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\skip\footins=7pt plus11pt
-\skip\@mpfootins=\skip\footins
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\fboxsep=3pt \fboxrule=.4pt
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\arrayrulewidth=.4pt    \doublerulesep=2pt
-\labelsep=5pt           \arraycolsep=\labelsep
-\tabcolsep=\labelsep    \tabbingsep=\labelsep
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\floatsep=15pt plus 12pt    \dblfloatsep=15pt plus 12pt
-\textfloatsep=\floatsep  \dbltextfloatsep=15pt plus 12pt
-\intextsep=\floatsep
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\@fptop=0pt plus1fil     \@dblfptop=0pt plus1fil
-\@fpbot=0pt plus1fil     \@dblfpbot=0pt plus1fil
-\@fpsep=8pt plus2fil     \@dblfpsep=8pt plus2fil\relax
-%    \end{macrocode}
-%    Note that \cs{parskip} gets no stretch; this is at variance with
-%    the generic \latex/ classes.
-%    \begin{macrocode}
-\parskip=0pt \relax
-%    \end{macrocode}
-%
-%    \cs{@parboxrestore}, used by \cs{@footnotetext}, sets
-%    \cs{parindent} to |0pt|; since this is not what we want, we
-%    make a new dimen \cs{normalparindent} and after calling
-%    \cs{@parboxrestore}, \cs{@footnotetext} resets
-%    \cs{parindent} back to normal.
-%    \begin{macrocode}
-\newdimen\normalparindent
-%<amsart>\normalparindent=12pt
-%<amsproc|amsbook>\normalparindent=18pt
-\parindent=\normalparindent
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\partopsep=0pt \relax \parsep=0pt \relax \itemsep=0pt \relax
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\@lowpenalty=51         \@medpenalty=151        \@highpenalty=301
-\@beginparpenalty=-\@lowpenalty
-\@endparpenalty=-\@lowpenalty
-\@itempenalty=-\@lowpenalty
-%    \end{macrocode}
-%
-%  \subsubsection{Typesize-specific code}
-%
-%    The class option \opt{12pt} sets the main typesize to 12 pt and
-%    makes various adaptations, primarily sliding the size-changing
-%    commands up the scale of magsteps. This makes it more likely that
-%    someone with bitmapped fonts will have all the fonts and sizes
-%    that they need. The \opt{8pt} option is for those who like to
-%    conserve paper.
-%
-%    By parameterizing some aspects it is possible to make a great deal
-%    of the typesize-specific code automatically adapt to the selected
-%    size. Then there is so little typesize-specific code remaining
-%    that it no longer makes sense to put the code in separate \fn{.clo}
-%    files. So instead of analogs for the generic \fn{size10,11,12.clo}
-%    files we have the code for those options entirely contained in the
-%    \fn{.cls} file in the form of declared options.
-%
-%    Some miscellaneous remarks.
-%
-%    ---If PostScript fonts are used, it may seem a little strange to
-%    use fonts following the magstep'd point sizes 10.95, 14.4, 17.28,
-%    20.74, 24.88 instead of simply 11, 14, 17, 21, 25. But it is not
-%    easy for us to make that distinction here in the document class
-%    definitions of the fontsize changing commands. So we don't try.
-%
-%    \begin{macrocode}
-\DeclareOption{10pt}{\def\@mainsize{10}\def\@ptsize{0}%
-  \def\@typesizes{%
-%    \end{macrocode}
-%    There should be 11 typesize/baselineskip pairs: five below
-%    \cn{normalsize} and five above.
-%    \begin{macrocode}
-    \or{5}{6}\or{6}{7}\or{7}{8}\or{8}{10}\or{9}{11}%
-    \or{10}{12}% normalsize
-    \or{\@xipt}{13}\or{\@xiipt}{14}\or{\@xivpt}{17}%
-    \or{\@xviipt}{20}\or{\@xxpt}{24}}%
-  \normalsize \linespacing=\baselineskip
-}
-%
-\DeclareOption{11pt}{\def\@mainsize{11}\def\@ptsize{1}%
-  \def\@typesizes{%
-    \or{6}{7}\or{7}{8}\or{8}{10}\or{9}{11}\or{10}{12}%
-    \or{\@xipt}{13}% normalsize
-    \or{\@xiipt}{14}\or{\@xivpt}{17}\or{\@xviipt}{20}%
-    \or{\@xxpt}{24}\or{\@xxvpt}{30}}%
-  \normalsize \linespacing=\baselineskip
-}
-%
-\DeclareOption{12pt}{\def\@mainsize{12}\def\@ptsize{2}%
-  \def\@typesizes{%
-    \or{7}{8}\or{8}{10}\or{9}{11}\or{10}{12}\or{\@xipt}{13}%
-    \or{\@xiipt}{14}% normalsize
-    \or{\@xivpt}{17}\or{\@xviipt}{20}\or{\@xxpt}{24}%
-    \or{\@xxvpt}{30}\or{\@xxvpt}{30}}%
-  \normalsize \linespacing=\baselineskip
-}
-%
-\DeclareOption{8pt}{\def\@mainsize{8}\def\@ptsize{8}%
-  \def\@typesizes{%
-    \or{5}{6}\or{5}{6}\or{5}{6}\or{6}{7}\or{7}{8}%
-    \or{8}{10}% normalsize
-    \or{9}{11}\or{10}{12}\or{\@xipt}{13}%
-    \or{\@xiipt}{14}\or{\@xivpt}{17}}%
-  \normalsize \linespacing=\baselineskip
-}
-%
-\DeclareOption{9pt}{\def\@mainsize{9}\def\@ptsize{9}%
-  \def\@typesizes{%
-    \or{5}{6}\or{5}{6}\or{6}{7}\or{7}{8}\or{8}{10}%
-    \or{9}{11}% normalsize
-    \or{10}{12}\or{\@xipt}{13}\or{\@xiipt}{14}%
-    \or{\@xivpt}{17}\or{\@xviipt}{20}}%
-  \normalsize \linespacing=\baselineskip
-}
-%    \end{macrocode}
-%
-%  \subsubsection{Running heads}
-%    The normal application of pagestyle functions \cs{ps@xxx} is to
-%    determine the contents of running heads and feet. The function
-%    \cs{@mkboth} is used internally by commands \cn{chapter},
-%    \cn{section}, and the like to set the running heads.
-%    \begin{macrocode}
-\def\ps@empty{\let\@mkboth\@gobbletwo
-  \let\@oddhead\@empty \let\@evenhead\@empty
-  \let\@oddfoot\@empty \let\@evenfoot\@empty
-%    \end{macrocode}
-%    The current implementation in \cls{amsart}/\cls{amsproc}/\cls{amsbook}
-%    of the vertical space at the top of an opening page uses \cs{topskip},
-%    which means that we need to do some resetting here.
-%    \begin{macrocode}
-  \global\topskip\normaltopskip}
-%    \end{macrocode}
-%    Pagestyle `plain' has the page numbers in the running feet.
-%    \begin{macrocode}
-\def\ps@plain{\ps@empty
-  \def\@oddfoot{\normalfont\scriptsize \hfil\thepage\hfil}%
-  \let\@evenfoot\@oddfoot}
-%    \end{macrocode}
-%
-%    Pagestyle `headings' uses text from sectioning commands for
-%    running heads.  Empty running feet.
-%    \begin{macrocode}
-\newswitch{runhead}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\ps@headings{\ps@empty
-  \def\@evenhead{%
-    \setTrue{runhead}%
-    \normalfont\scriptsize
-    \rlap{\thepage}\hfil
-    \def\thanks{\protect\thanks@warning}%
-    \leftmark{}{}\hfil}%
-  \def\@oddhead{%
-    \setTrue{runhead}%
-    \normalfont\scriptsize \hfil
-    \def\thanks{\protect\thanks@warning}%
-    \rightmark{}{}\hfil \llap{\thepage}}%
-  \let\@mkboth\markboth
-%<*amsbook>
-  \def\partmark{\@secmark\markboth\partrunhead\partname}%
-  \def\chaptermark{%
-    \@secmark\markboth\chapterrunhead{}}%
-  \def\sectionmark{%
-    \@secmark\markright\sectionrunhead\sectionname}%
-%</amsbook>
-}
-%    \end{macrocode}
-%
-%  \begin{macro}{\sectionname}
-%  \begin{macro}{\subsectionname}
-%  \begin{macro}{\subsubsectionname}
-%  \begin{macro}{\paragraphname}
-%  \begin{macro}{\subparagraphname}
-%    Initialize section headings.
-%    \begin{macrocode}
-\let\sectionname\@empty
-\let\subsectionname\@empty
-\let\subsubsectionname\@empty
-\let\paragraphname\@empty
-\let\subparagraphname\@empty
-%    \end{macrocode}
-%  \end{macro}
-%  \end{macro}
-%  \end{macro}
-%  \end{macro}
-%  \end{macro}
-%
-%    The default definitions of \cs{leftmark}, \cs{rightmark} are not
-%    what we want: the section title (or whatever) reported in the
-%    right-hand running head should report the section that is current
-%    at the bottom of the right-hand page. And the left-hand running
-%    head should report the status at the top of the page.
-%    Cf.~\fn{amsppt.sty}.
-%    \begin{macrocode}
-\def\leftmark{\expandafter\@firstoftwo\topmark{}{}}
-\def\rightmark{\expandafter\@secondoftwo\botmark{}{}}
-%    \end{macrocode}
-%
-%    Journal and Proceedings articles require an indication of the first
-%    page so the logo and copyright line can appear.
-%    \begin{macrocode}
-%<*amsart|amsproc>
-\def\ps@firstpage{\ps@plain
-  \def\@oddfoot{\normalfont\scriptsize \hfil\thepage\hfil
-%    \end{macrocode}
-%    Stick in the reset of \cs{topskip} here so it only gets executed
-%    after the first page is completed.
-%    \begin{macrocode}
-     \global\topskip\normaltopskip}%
-  \let\@evenfoot\@oddfoot
-  \def\@oddhead{\@serieslogo\hss}%
-  \let\@evenhead\@oddhead % in case an article starts on a left-hand page
-}
-%</amsart|amsproc>
-%    \end{macrocode}
-%
-%  \begin{macro}{\@nilgobble}
-%    Something that apparently doesn't exist in the kernel?
-%    \begin{macrocode}
-\long\def\@nilgobble#1\@nil{}
-%    \end{macrocode}
-%  \end{macro}
-%
-%    A general section-marking function. Arg 1 is either \cn{markright}
-%    or \cn{markboth} indicating which kind of marking action is desired
-%    (this gives us some string pool/hash table savings by allowing the
-%    \cs{@secmark} function to serve for both cases). Arg 2 is the
-%    function that should be called in the running head to process the
-%    remaining three args. Arg 3 is normally \cs{xxxname} (but could be
-%    empty). Arg 4 is the section-title text. Assumption: whenever
-%    \cs{@secmark} is called, the section-number variable
-%    \cs{@secnumber} has been set to the value of the current section
-%    number (possibly empty, in the case of a |*| section for example).
-%    \begin{macrocode}
-%<*amsbook>
-\def\@secmark#1#2#3#4{%
-%    \end{macrocode}
-%    We want to apply expansion to \cs{xxxname} and \cs{thexxx} but not
-%    to the other elements.
-%    \begin{macrocode}
-  \begingroup \let\protect\@unexpandable@protect
-  \edef\@tempa{\endgroup \toks@{\protect#2{#3}{\@secnumber}}}%
-  \@tempa
-  \toks@\@xp{\the\toks@{#4}}%
-%    \end{macrocode}
-%    If a \cn{markright} operation is called for, use the current
-%    left-mark via \cs{@temptokena}.
-%    \begin{macrocode}
-  \afterassignment\@nilgobble\@temptokena\@themark{}\@nil
-  \edef\@tempa{\@nx\@mkboth{%
-    \ifx\markright#1\the\@temptokena\else\the\toks@\fi}{\the\toks@}}%
-  \@tempa}
-%    \end{macrocode}
-%    Init \cs{@secnumber}.
-%    \begin{macrocode}
-\let\@secnumber\@empty
-%</amsbook>
-%    \end{macrocode}
-%
-%    Fix \cn{markboth} so that \cs{@secmark} can work without too much
-%    thrashing.
-%    \begin{macrocode}
-\def\markboth#1#2{%
-  \begingroup
-    \@temptokena{{#1}{#2}}\xdef\@themark{\the\@temptokena}%
-    \mark{\the\@temptokena}%
-  \endgroup
-  \if@nobreak\ifvmode\nobreak\fi\fi}
-%    \end{macrocode}
-%
-%    With the myheadings pagestyle, no automatic running heads will be
-%    provided by the document class; only running heads specified by
-%    the user through explicit \cn{markboth} or \cn{markright}
-%    commands will be used.
-%    \begin{macrocode}
-\def\ps@myheadings{\ps@headings \let\@mkboth\@gobbletwo}
-%    \end{macrocode}
-%
-%    Save normal topskip value in a skip register.
-%    \begin{macrocode}
-\newskip\normaltopskip
-\normaltopskip=10pt \relax
-%    \end{macrocode}
-%
-%    We also want to turn off all section marks.  First-level section
-%    heads will be defined in \cs{ps@headings}.
-%    \begin{macrocode}
-\let\sectionmark\@gobble
-\let\subsectionmark\@gobble
-\let\subsubsectionmark\@gobble
-\let\paragraphmark\@gobble
-%    \end{macrocode}
-
-%  \subsubsection{Unrecognized options}
-%
-%    The \opt{makeidx} option is redundant; everything that it does in
-%    the generic \latex/ classes is already done anyway in this class.
-%    \begin{macrocode}
-\DeclareOption{makeidx}{}
-%</classes>
-%    \end{macrocode}
-%
-%    Unrecognized options for \pkg{amsthm} are treated as references
-%    to auxiliary theorem setup (\fn{.thm}) files.  This allows a user
-%    to create theorem styles using internal commands (with |@| signs)
-%    without having to be concerned about category coding.
-%
-%    Here is an example from the file \fn{thmtest.tex} which is part
-%    of this collection.  See that file for further information.
-%\begin{verbatim}
-% \begin{filecontents}{exercise.thm}
-% \def\th@exercise{%
-%   \normalfont % body font
-%   \thm@headpunct{:}%
-% }
-% \end{filecontents}
-%\end{verbatim}
-%
-%    This facility is available only when \pkg{amsthm} is used as an
-%    independent package, not as part of an AMS document class.
-%    \begin{macrocode}
-%<*amsthm>
-\DeclareOption*{\input{\CurrentOption .thm}}
-\ProcessOptions
-%</amsthm>
-%    \end{macrocode}
-%
-% \subsection{Process options}
-%
-%    Black boxes for overfull lines are turned off by default (the
-%    \opt{final} option). This can be overridden with the \opt{draft}
-%    option.
-%    \begin{macrocode}
-%<*classes>
-\ExecuteOptions{leqno,centertags,letterpaper,portrait,%
-  10pt,twoside,onecolumn,final}
-%    \end{macrocode}
-%    Options will be processed in the order of the associated
-%    \cs{DeclareOption} commands.
-%    \begin{macrocode}
-\ProcessOptions\relax
-%    \end{macrocode}
-%
-%    In compatibility  mode, we want to load the frozen version of
-%    \fn{amstex.sty} instead of the \pkg{amsmath} package. This is
-%    rather a horrible kluge but I can't see anything better at the
-%    moment. [mjd,1995/01/27]
-%    \begin{macrocode}
-\if@compatibility
-  \def\@tempa{\RequirePackage{amstex}\relax}%
-\else
-  \@ifclasswith{\@classname}{nomath}{%
-    \let\@tempa\relax
-  }{%
-    \def\@tempa{\RequirePackage{amsmath}\relax}%
-  }%
-\fi
-\@tempa % load amstex.sty or amsmath.sty
-%    \end{macrocode}
-%    If the \opt{nomath} option was specified, then \cn{numberwithin}
-%    and \cs{@emptytoks} remain to be defined.
-%    \begin{macrocode}
-\@ifundefined{numberwithin}{%
-  \newcommand{\numberwithin}[3][\arabic]{%
-    \@ifundefined{c@#2}{\@nocounterr{#2}}{%
-      \@ifundefined{c@#3}{\@nocnterr{#3}}{%
-        \@addtoreset{#2}{#3}%
-        \@xp\xdef\csname the#2\endcsname{%
-          \@xp\@nx\csname the#3\endcsname .\@nx#1{#2}}}}%
-  }
-  \csname newtoks\endcsname\@emptytoks
-}{}
-%    \end{macrocode}
-%
-%    If the \opt{noamsfonts} option was called for, skip the
-%    \pkg{amsfonts} package load.
-%    \begin{macrocode}
-\if@compatibility
-\else
-  \@ifclasswith{\@classname}{noamsfonts}{%
-    % amsfonts package is not wanted
-  }{%
-    % amsfonts package IS wanted; test whether a recent enough version
-    % seems to be installed
-    \begingroup \fontencoding{U}\fontfamily{msa}\try@load@fontshape\endgroup
-    \global\@xp\let\csname U+msa\endcsname\relax % reset
-    \@ifundefined{U/msa/m/n}{%
-      \ClassError{\@classname}{%
-  Package `amsfonts' not installed, or version too old?\MessageBreak
-  Unable to get font info for the `msam' fonts in the expected form%
-      }{%
-  The amsfonts package will not be loaded, to avoid probable\MessageBreak
-  incompatibility problems. You can (a) use the `noamsfonts'
-      documentclass\MessageBreak
-  option next time, or (b) check that the amsfonts package is
-      installed\MessageBreak
-  correctly, and is not too old to be compatible.%
-      }%
-    }{%
-      \RequirePackage{amsfonts}[1995/01/01]\relax
-    }%
-  }
-\fi % end yesamsfonts branch
-%    \end{macrocode}
-%
-%    \subsection{Basic AMS style features}
-%
-%    AMS style requires that blank pages between chapters be \emph{really}
-%    blank: no running heads, no page numbers.  To accomplish this,
-%    redefine \cn{cleardoublepage} to do the right thing.  [bnb, 1999/07/17]
-%    \begin{macrocode}
-\let\cleardouble@page\cleardoublepage
-%    \end{macrocode}
-%    Postpone the redefinition of \cs{cleardoublepage} to begin-document
-%    to work around difficulties with old versions of \fn{gsm-l.cls}.
-%    \begin{macrocode}
-\AtBeginDocument{%
-  \ifx\cleardouble@page\cleardoublepage
-    \def\cleardoublepage{\clearpage{\pagestyle{empty}\cleardouble@page}}
-  \fi
-}
-%    \end{macrocode}
-%
-%    Now a utility macro to do \cn{uppercase} but sidestep any math, to
-%    prevent uppercasing math variables.  In order to be handled properly
-%    the |$...$| or |\(...\)| must be on the outer level (not
-%    enclosed in braces).  We did not try to handle the possibility
-%    |\begin{math}| |...| |\end{math}| in a title at the present time (too
-%    complicated).  Also we increase inter-word space in the uppercase
-%    text.
-%
-%    One other little problem: uppercasing of a few special characters
-%    like the German {\ss} (\cn{ss}) and the undotted i and j (\cn{i}
-%    and \cn{j}), used sometimes with accents. We redefine them to be
-%    uppercase equivalents. (Undotted \cn{i} and \cn{j} in math would be
-%    typed as \cn{imath} and \cn{jmath}.)
-%
-%    Spaceskip is changed in accordance with recommendations for
-%    increased interword spacing in all-caps text by e.g.\ `Words into
-%    Type'.
-%    \begin{macrocode}
-\newcommand{\uppercasenonmath}[1]{\toks@\@emptytoks
-%    Insert an extra \@empty to avoid removing braces around arg \arg{1}.
-  \@xp\@skipmath\@xp\@empty#1$$%
-%    \end{macrocode}
-%    The \cs{protect} here is in case the shorttitle gets used for
-%    shortauthors and we get redundant application of \cn{MakeUppercase}.
-%    Double braces limit the scope so that later elements in title block
-%    aren't uppercased, e.g., \cn{i} in an address.  [bnb, 2004/04/01]
-%    \begin{macrocode}
-  \edef#1{{\@nx\protect\@nx\@upprep\the\toks@}}%
-}
-%    \end{macrocode}
-%
-%  \begin{macro}{\@upprep}
-%    Preparations for printing all-caps text.
-%    \begin{macrocode}
-\newcommand{\@upprep}{%
-  \spaceskip1.3\fontdimen2\font plus1.3\fontdimen3\font
-  \upchars@}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{\upchars@}
-%    In all-caps text, esszet should print as SS, dotless i should print
-%    as normal cap I, Mc should print with a small-caps (not lowercase)
-%    c, and so forth.
-%    \begin{macrocode}
-\newcommand{\upchars@}{%
-  \def\ss{SS}\def\i{I}\def\j{J}\def\ae{\AE}\def\oe{\OE}%
-  \def\o{\O}\def\aa{\AA}\def\l{\L}\def\Mc{M{\scshape c}}}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{\Mc}
-%    The use of \cn{Mc} makes it possible for `Mc' to get special
-%    treatment when uppercasing is applied.
-%    \begin{macrocode}
-\providecommand{\Mc}{Mc}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{\@skipmath}
-%  \begin{macro}{\@xskipmath}
-%    \cs{@skipmath} searches for |$...$| in order to keep from applying
-%    \cn{uppercase} to the contents. Then it calls \cs{@xskipmath} to
-%    search for |\(...\)|.
-%    \begin{macrocode}
-\newcommand{\@skipmath}{}
-\long\def\@skipmath#1$#2${%
-  \@xskipmath#1\(\)%
-  \@ifnotempty{#2}{\toks@\@xp{\the\toks@$#2$}\@skipmath\@empty}}%
-%
-\newcommand{\@xskipmath}{}
-\long\def\@xskipmath#1\(#2\){%
-%    Expand away the added \@empty
-  \uppercase{\toks@\@xp\@xp\@xp{\@xp\the\@xp\toks@#1}}%
-  \@ifnotempty{#2}{\toks@\@xp{\the\toks@\(#2\)}\@xskipmath\@empty}}%
-%    \end{macrocode}
-%  \end{macro}
-%  \end{macro}
-%
-%  \begin{macro}{\altucnm}
-%    \begin{macrocode}
-\def\altucnm#1{%
-  \MakeTextUppercase{\toks@{#1}}%
-  \edef#1{\the\toks@}%
-}
-\AtBeginDocument{%
-  \@ifundefined{MakeTextUppercase}{}{\let\uppercasenonmath\altucnm}%
-}
-%    \end{macrocode}
-%  \end{macro}
-%
-%    For older versions of \latex/ this might be needed too:
-%    \begin{macrocode}
-\@ifundefined{MakeUppercase}{\let\MakeUppercase\uppercase}{}%
-%    \end{macrocode}
-%
-%  \begin{macro}{\today}
-%    The command \cn{today} produces today's date in the form most
-%    commonly used in the U.S.
-%    \begin{macrocode}
-\newcommand{\today}{%
-  \relax\ifcase\month\or
-  January\or February\or March\or April\or May\or June\or
-  July\or August\or September\or October\or November\or December\fi
-  \space\number\day, \number\year}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \subsection{Old font commands}
-%    The \cn{em} command is not redefined here (let's say, to give an
-%    `obsolete' warning and recommend instead \cn{emph}) because there
-%    is no alternative internal command \cs{emshape}.
-%    \begin{macrocode}
-\DeclareOldFontCommand{\rm}{\normalfont\rmfamily}{\mathrm}
-\DeclareOldFontCommand{\sf}{\normalfont\sffamily}{\mathsf}
-\DeclareOldFontCommand{\tt}{\normalfont\ttfamily}{\mathtt}
-\DeclareOldFontCommand{\bf}{\normalfont\bfseries}{\mathbf}
-\DeclareOldFontCommand{\it}{\normalfont\itshape}{\mathit}
-\DeclareOldFontCommand{\sl}{\normalfont\slshape}{\@nomath\sl}
-\DeclareOldFontCommand{\sc}{\normalfont\scshape}{\@nomath\sc}
-%    \end{macrocode}
-%
-%    This warning might have been a good idea back in 1995 but I don't
-%    think we can add it now [mjd,2000/03/10].
-%\begin{verbatim}
-%%\if@compatibility
-%%\else
-%%  \def\@obsolete@fontswitch#1#2#3{%
-%%    \@latex@warning@no@line{%
-%%      Command {\string#1...}\on@line\space is obsolete;\MessageBreak
-%%      the LaTeX2e equivalent is \string#3{...}}%
-%%    \gdef#1{\@fontswitch\relax#3}%
-%%  }
-%%  \DeclareRobustCommand*\cal{%
-%%    \@xp\@obsolete@fontswitch\csname cal \endcsname\relax\mathcal}
-%%  \DeclareRobustCommand*\mit{%
-%%    \@xp\@obsolete@fontswitch\csname mit \endcsname\relax\mathnormal}
-%%\fi
-%\end{verbatim}
-%    There's too great a chance that some people out there have
-%    documents that begin with
-%\begin{verbatim}
-%\documentclass{amsart}
-%...
-%\newcommand{\cal}{\mathcal}
-%\end{verbatim}
-%    and such documents would now get error messages.
-%
-%    Since \cs{cal} is not documented as a valid command for \LaTeXe/, I
-%    think it is OK to leave the status as is for AMS document classes.
-%    If you use \cs{documentstyle}, \cs{cal} will work. If you use
-%    \cs{documentclass}, well, it's a good idea to update to
-%    \cs{mathcal} instead of leaving old instances of \cs{cal}.
-%
-%  \subsection{Top matter}
-%    For the \cn{title} command, we support an optional argument to give
-%    a shortened version of the title for running heads.
-%    \begin{macrocode}
-\renewcommand*{\title}[2][]{\gdef\shorttitle{#1}\gdef\@title{#2}}
-%    \end{macrocode}
-%    The default value for the optional argument is `same as the
-%    mandatory arg' but there doesn't seem to be an easy way to get that
-%    effect with \ncn{[re]newcommand}. Here is how to use \cs{@dblarg}
-%    in conjunction with the preceding \cn{newcommand}:
-%    \begin{macrocode}
-\edef\title{\@nx\@dblarg
-  \@xp\@nx\csname\string\title\endcsname}
-%    \end{macrocode}
-%    The \cn{author} command accepts an optional argument similar to
-%    that of the \cn{title} command.
-%    Moved update of \cn{addresses} within scope of \cs{else} to avoid
-%    adding anything if no authors, and thus avoiding output of ``Author
-%    address'' on monograph titlepage.  [bnb, 1996/11/03]
-%    \begin{macrocode}
-\renewcommand{\author}[2][]{%
-  \ifx\@empty\authors
-    \gdef\authors{#2}%
-  \else
-    \g@addto@macro\authors{\and#2}%
-    \g@addto@macro\addresses{\author{}}%
-  \fi
-  \@ifnotempty{#1}{%
-    \ifx\@empty\shortauthors
-      \gdef\shortauthors{#1}%
-    \else
-      \g@addto@macro\shortauthors{\and#1}%
-    \fi
-  }%
-}
-\edef\author{\@nx\@dblarg
-  \@xp\@nx\csname\string\author\endcsname}
-%    \end{macrocode}
-%    Initialize some variables.
-%    \begin{macrocode}
-\let\shortauthors\@empty   \let\authors\@empty
-%    \end{macrocode}
-%
-%  \begin{macro}{\contrib}
-%
-%    Contributors are similar to authors except that they are responsible
-%    for only part of a work, e.g., an appendix.  The optional argument
-%    for the first contributor of a group identifies what has been
-%    contributed.  There can be more than one group of contributors;
-%    each group is treated separately, using the same ``and'' conventions
-%    within the group as for authors.  Contributor groups are strung
-%    together separated by a comma; if the word ``and'' is desired before
-%    the final group of contributors, it must be included in the optional
-%    argument for that group.
-%    \begin{macrocode}
-%<*amsart|amsproc>
-\newif\ifresetcontrib  \resetcontribfalse
-\newcommand\contrib[2][]{%
-  \def\@tempa{#1}%
-  \ifx\@empty\@tempa
-  \else
-    \ifresetcontrib \@xcontribs
-    \else \global\resetcontribtrue
-    \fi
-  \fi
-  \ifx\@empty\contribs
-    \gdef\contribs{#1 #2}%
-  \else
-    \g@addto@macro\contribs{\and#1 #2}%
-  \fi
-%    \end{macrocode}
-%    Accumulate contribs separately for the table of contents.  Here,
-%    this is just a dummy; it is fully defined for in-house processing.
-%    \begin{macrocode}
-  \@wraptoccontribs{#1}{#2}%
-}
-\def\wraptoccontribs#1#2{}
-\def\@xcontribs{%
-  \author@andify\contribs
-  \ifx\@empty\xcontribs
-    \xdef\xcontribs{\contribs}%
-  \else
-    \xdef\xcontribs{\xcontribs, \contribs}%
-  \fi
-  \let\contribs\@empty
-}
-%    \end{macrocode}
-%  \end{macro}
-%
-%    Initialize some more variables.
-%    \begin{macrocode}
-\let\contribs\@empty  \let\xcontribs\@empty  \let\toccontribs\@empty
-%</amsart|amsproc>
-\let\addresses\@empty      \let\thankses\@empty
-%    \end{macrocode}
-%
-%    The optional arguments of \cn{address}, \cn{curraddr}, \cn{email}
-%    are to indicate which author the address applies to, if a document
-%    has multiple authors and there is not a normal one-to-one
-%    correspondence between authors and addresses.
-%    \begin{macrocode}
-\newcommand{\address}[2][]{\g@addto@macro\addresses{\address{#1}{#2}}}
-\newcommand{\curraddr}[2][]{\g@addto@macro\addresses{\curraddr{#1}{#2}}}
-\newcommand{\email}[2][]{\g@addto@macro\addresses{\email{#1}{#2}}}
-\newcommand{\urladdr}[2][]{\g@addto@macro\addresses{\urladdr{#1}{#2}}}
-%    \end{macrocode}
-%
-%    Someone who does not look closely at the \cls{amsart} documentation
-%    is likely to put the \cn{thanks} command inside that argument of
-%    \cn{author}.
-%    \begin{macrocode}
-\long\def\thanks@warning#1{%
-  \ClassError{\@classname}{%
-    \protect\thanks\space should be given separately, not inside author name.%
-  }\@ehb
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\renewcommand{\thanks}[1]{%
-  \@ifnotempty{#1}{\g@addto@macro\thankses{\thanks{#1}}}%
-}
-%    \end{macrocode}
-%
-%    The following example of addresses for three authors of a
-%    tri-author paper illustrates the kind of complications that need to
-%    be handled.
-%\begin{verbatim}
-%  \author{Roland Campbell}
-%  \address{Department of Mathematics\\
-%    Pennsylvania State University\\
-%    Pittsburgh, Pennsylvania 13593}
-%  \email[R.~Campbell]{campr@@galois.psu.edu}
-%
-%  \author{Mark M. Dane}
-%  % Same address as R. Campbell
-%  \curraddr[M.~Dane]{Atmospheric Research Station\\
-%    Pala Lundi, Fiji}
-%  \email[M.~Dane]{DaneMark@@ffr.choice}
-%
-%  \author{Jeremiah Jones}
-%  \address[J.~Jones]{Department of Philosophy\\
-%  Freedman College\\
-%  Periwinkle, Colorado 84320}
-%  \email[J.~Jones]{id739e@@oseoi44 (Bitnet)}
-%\end{verbatim}
-%    In an article, typesetting of the address information is done at
-%    the end of the document, by calling \cs{@setaddresses}. This is done
-%    through a parent function \cs{enddoc@text}, because some AMS journals
-%    also print the abstract there instead of at the beginning, and it's
-%    easier to redefine \cs{enddoc@text} than to try undoing material
-%    already added to the \cs{AtEndDocument} hook.
-%    \begin{macrocode}
-%<*amsart|amsproc>
-\def\enddoc@text{\ifx\@empty\@translators \else\@settranslators\fi
-  \ifx\@empty\addresses \else\@setaddresses\fi}
-\AtEndDocument{\enddoc@text}
-%</amsart|amsproc>
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\curraddrname{{\itshape Current address}}
-\def\emailaddrname{{\itshape E-mail address}}
-\def\urladdrname{{\itshape URL}}
-\def\@setaddresses{\par
-  \nobreak \begingroup
-%<amsart|amsproc>\footnotesize
-  \def\author##1{\nobreak\addvspace\bigskipamount}%
-%    \end{macrocode}
-%    Address is supposed to go all on one line, so we redefine |\\|
-%    to just insert a comma instead of doing a line break.
-%    \begin{macrocode}
-  \def\\{\unskip, \ignorespaces}%
-%    \end{macrocode}
-%    No page breaks in the address section is accomplished by
-%    |\interlinepenalty\@M| and by the \cn{nobreak} before the \cn{bigskip}.
-%    \begin{macrocode}
-  \interlinepenalty\@M
-  \def\address##1##2{\begingroup
-%    \end{macrocode}
-%    If there are two addresses for the same author, add a \cn{bigskip}
-%    between them.
-%    \begin{macrocode}
-    \par\addvspace\bigskipamount\indent
-%    \end{macrocode}
-%    If the name of the author to whom this address applies
-%    was given, typeset it.
-%    \begin{macrocode}
-    \@ifnotempty{##1}{(\ignorespaces##1\unskip) }%
-%    \end{macrocode}
-%    Now the main part of the address:
-%    \begin{macrocode}
-    {\scshape\ignorespaces##2}\par\endgroup}%
-%    \end{macrocode}
-%    Current address:
-%    \begin{macrocode}
-  \def\curraddr##1##2{\begingroup
-    \@ifnotempty{##2}{\nobreak\indent\curraddrname
-      \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space
-      ##2\par}\endgroup}%
-%    \end{macrocode}
-%    And then email. In versions 1.0 and 1.1 |@@| was required to print
-%    a single \qc{\@} character; for bulletproofing we convert doubled
-%    \qc{\@} characters if found.
-%    \begin{macrocode}
-  \def\email##1##2{\begingroup
-    \@ifnotempty{##2}{\nobreak\indent\emailaddrname
-      \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space
-      \ttfamily##2\par}\endgroup}%
-%    \end{macrocode}
-%    URLaddr is simply a replica of the email address, with the
-%    addition of a feature to enable |~| to print.
-%    \begin{macrocode}
-  \def\urladdr##1##2{\begingroup
-    \def~{\char`\~}%
-    \@ifnotempty{##2}{\nobreak\indent\urladdrname
-      \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space
-      \ttfamily##2\par}\endgroup}%
-  \addresses
-  \endgroup
-}
-%    \end{macrocode}
-%
-%    Some other administrative info. For \cn{date} we can just use the
-%    default definition provided by \latex/, except that we initialize
-%    the date to empty instead of to \cn{today}.
-%    \begin{macrocode}
-\let\@date\@empty
-\def\dedicatory#1{\def\@dedicatory{#1}}
-\let\@dedicatory=\@empty
-\def\keywords#1{\def\@keywords{#1}}
-\let\@keywords=\@empty
-%    \end{macrocode}
-%
-%    To allow various versions of the subject classification, accept an
-%    optional value to identify the version, provide text for the two
-%    currently in use, and give a warning if the version specified is
-%    unknown.  Default to 1991 version.  [bnb, 1999/04/30]
-%    \begin{macrocode}
-\newcommand*\subjclass[2][1991]{%
-  \def\@subjclass{#2}%
-  \@ifundefined{subjclassname@#1}{%
-    \ClassWarning{\@classname}{Unknown edition (#1) of Mathematics
-      Subject Classification; using '1991'.}%
-  }{%
-    \@xp\let\@xp\subjclassname\csname subjclassname@#1\endcsname
-  }%
-}
-\let\@subjclass=\@empty
-%<amsart>\def\commby#1{\def\@commby{(Communicated by #1)}}
-%<amsart>\let\@commby=\@empty
-%    \end{macrocode}
-%
-%    We handle translator names like author names, just in case there is
-%    more than one translator. [mjd,1994/10/19]
-%    \begin{macrocode}
-\def\translname{Translated by}
-\def\translator#1{%
-  \ifx\@empty\@translators \def\@translators{#1}%
-  \else\g@addto@macro\@translators{\and#1}\fi}
-\let\@translators=\@empty
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-%<*amsart|amsproc>
-\def\@settranslators{\par\begingroup
-  \addvspace{6\p@\@plus9\p@}%
-  \hbox to\columnwidth{\hss\normalfont\normalsize
-    \translname{ }%
-    \andify\@translators \uppercasenonmath\@translators
-    \@translators}
-  \endgroup
-}
-%</amsart|amsproc>
-%    \end{macrocode}
-%
-%    The general function to convert a list of items in the form
-%\begin{verbatim}
-% A\and B\and C\and D
-%\end{verbatim}
-%    to the form `A, B, C, and D' is \cs{xandlist}:
-%\begin{verbatim}
-% \xandlist{, }{ and }{, and }{A\and B\and C\and D}
-%\end{verbatim}
-%    This is a completely expandable macro, with the return value being
-%    the converted list. There is also a `no-execute' version whose
-%    fourth argument should be a macro; the text to be converted will be
-%    taken from that macro and after conversion will be put back as the
-%    macro's new replacement text.
-%\begin{verbatim}
-%      \nxandlist{, }{ and }{, and }\result
-%\end{verbatim}
-%    I don't think I want to explain this except by recommending that
-%    you watch it in operation with \cs{tracingmacros} if you're
-%    interested. [mjd,1994/10/19]
-%    \begin{macrocode}
-\newcommand{\xandlist}[4]{\@andlista{{#1}{#2}{#3}}#4\and\and}
-\def\@andlista#1#2\and#3\and{\@andlistc{#2}\@ifnotempty{#3}{%
-  \@andlistb#1{#3}}}
-\def\@andlistb#1#2#3#4#5\and{%
-  \@ifempty{#5}{%
-    \@andlistc{#2#4}%
-  }{%
-    \@andlistc{#1#4}\@andlistb{#1}{#3}{#3}{#5}%
-  }}
-\let\@andlistc\@iden
-\newcommand{\nxandlist}[4]{%
-  \def\@andlistc##1{\toks@\@xp{\the\toks@##1}}%
-  \toks@{\toks@\@emptytoks \@andlista{{#1}{#2}{#3}}}%
-  \the\@xp\toks@#4\and\and
-  \edef#4{\the\toks@}%
-  \let\@andlistc\@iden}
-%    \end{macrocode}
-%
-%  \begin{macro}{andify}
-%
-%    The \cs{andify} function is provided as a convenient abbreviation
-%    for the most common case.  See also \cs{author@andify} (for
-%    \cls{amsart} and \cls{amsproc} only), which gives better results
-%    in cases with a large number of authors.  Provide a substitutable
-%    text string to simplify language-specific modifications.
-%    \begin{macrocode}
-\def\@@and{and}
-\newcommand{\andify}{%
-  \nxandlist{\unskip, }{\unskip{} \@@and~}{\unskip, \@@and~}}
-%    \end{macrocode}
-%    Override the funny default definition of \cn{and} from \latex/.
-%    This is not actually used by AMS classes, however.
-%    \begin{macrocode}
-\def\and{\unskip{ }\@@and{ }\ignorespaces}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{maketitle}
-%
-%    Set up the style of an article opening page.  For books, see below.
-%    For articles, we must add the copyright info footnote.
-%    \begin{macrocode}
-%<*amsart|amsproc>
-\def\maketitle{\par
-  \@topnum\z@ % this prevents figures from falling at the top of page 1
-  \@setcopyright
-  \thispagestyle{firstpage}% this sets first page specifications
-%    \end{macrocode}
-%    Do some setup for the running heads here. If there are no author names,
-%    we set the left-hand running head to the value of the right-hand running
-%    head.
-%    \begin{macrocode}
-  \uppercasenonmath\shorttitle
-  \ifx\@empty\shortauthors \let\shortauthors\shorttitle
-  \else \andify\shortauthors
-  \fi
-%    \end{macrocode}
-%    The following hook is used to activate the writing of author and
-%    title information to an `issue table of contents' when multiple
-%    articles are being processed for a journal issue or a proceedings
-%    volume.
-%    \begin{macrocode}
-  \@maketitle@hook
-  \begingroup
-  \@maketitle
-  \toks@\@xp{\shortauthors}\@temptokena\@xp{\shorttitle}%
-  \toks4{\def\\{ \ignorespaces}}% defend against questionable usage
-  \edef\@tempa{%
-    \@nx\markboth{\the\toks4
-      \@nx\MakeUppercase{\the\toks@}}{\the\@temptokena}}%
-  \@tempa
-  \endgroup
-  \c@footnote\z@
-  \@cleartopmattertags
-}
-\def\@cleartopmattertags{%
-  \def\do##1{\let##1\relax}%
-  \do\maketitle \do\@maketitle \do\title \do\@xtitle \do\@title
-  \do\author \do\@xauthor \do\address \do\@xaddress
-  \do\contrib \do\contribs \do\xcontribs \do\toccontribs
-  \do\email \do\@xemail \do\curraddr \do\@xcurraddr
-%<amsart>  \do\commby \do\@commby
-  \do\dedicatory \do\@dedicatory \do\thanks \do\thankses
-  \do\keywords \do\@keywords \do\subjclass \do\@subjclass
-}
-%</amsart|amsproc>
-%    \end{macrocode}
-%  \end{macro}
-%
-%    The hook \cs{@maketitle@hook} is placed into \cn{maketitle} rather
-%    than \cs{@maketitle} because the latter tends to get redefined by
-%    derived classes using this one as a base. The initial motivation
-%    for this hook is to extract title and author information to an
-%    external file, so we can't do it with \cs{AtBeginDocument}:
-%    \cn{title} and \cn{author} commands might occur between
-%    \verb'\begin{document}' and \cn{maketitle}.
-%
-%    \begin{macrocode}
-%<*amsart|amsproc>
-\def\@maketitle@hook{\global\let\@maketitle@hook\@empty}
-%</amsart|amsproc>
-%    \end{macrocode}
-%
-%    Set up the style of an article opening page.
-%    \begin{macrocode}
-%<*amsart|amsproc>
-\def\@maketitle{%
-%    \end{macrocode}
-%    Set font to normal, just in case.
-%    \begin{macrocode}
-  \normalfont\normalsize
-%    \end{macrocode}
-%    Special footnotes are put here to ensure that they come first at
-%    the bottom of the page.
-%    \begin{macrocode}
-  \@adminfootnotes
-%    \end{macrocode}
-%    If |\pagestyle{myheadings}| was specified, \cs{@mkboth} will be a no-op.
-%    \begin{macrocode}
-  \@mkboth{\@nx\shortauthors}{\@nx\shorttitle}%
-%<amsproc>  \global\topskip8pc\relax % 10pc to base of first title line
-%<amsart>  \global\topskip42\p@\relax % 5.5pc   "   "   "     "     "
-  \@settitle
-  \ifx\@empty\authors \else \@setauthors \fi
-%    \end{macrocode}
-%    Likewise with \cs{@dedicatory} and \cs{@date}.
-%    \begin{macrocode}
-  \ifx\@empty\@dedicatory
-  \else
-%<amsproc>    \baselineskip26\p@
-%<amsart>    \baselineskip18\p@
-    \vtop{\centering{\footnotesize\itshape\@dedicatory\@@par}%
-      \global\dimen@i\prevdepth}\prevdepth\dimen@i
-  \fi
-  \@setabstract
-%    \end{macrocode}
-%    Space before the main text should be 32 + 14 base-to-base; we
-%    accomplish this by doing a vskip of that amount with \cs{baselineskip}
-%    subtracted.
-%    \begin{macrocode}
-  \normalsize
-  \if@titlepage
-    \newpage
-  \else
-    \dimen@34\p@ \advance\dimen@-\baselineskip
-    \vskip\dimen@\relax
-  \fi
-} % end \@maketitle
-%    \end{macrocode}
-%
-%    Segregate the definitions of administrative footnotes to permit
-%    easier customization, especially for translation journals.
-%    \begin{macrocode}
-\def\@adminfootnotes{%
-  \let\@makefnmark\relax  \let\@thefnmark\relax
-%<amsart>  \ifx\@empty\@date\else \@footnotetext{\@setdate}\fi
-  \ifx\@empty\@subjclass\else \@footnotetext{\@setsubjclass}\fi
-  \ifx\@empty\@keywords\else \@footnotetext{\@setkeywords}\fi
-%    \end{macrocode}
-%    In order to make multiple thanks footnotes work inside a single
-%    \cs{@footnotetext} argument we need to make the first \cn{par} be
-%    ignored. Cf.~\cs{@setthanks}.
-%    \begin{macrocode}
-  \ifx\@empty\thankses\else \@footnotetext{%
-    \def\par{\let\par\@par}\@setthanks}%
-  \fi
-}
-%</amsart|amsproc>
-%    \end{macrocode}
-%
-%  \subsection{Journal/series logo for articles}
-%
-%    \cs{publname} either will be defined by a parent class that is calling
-%    \cls{amsart} or \cls{amsproc} as a base class, or will be absent, in
-%    which case this can be used as a signal to omit the \cs{@serieslogo}.
-%    A typical value for \cs{publname} would be
-%\begin{verbatim}
-% \def\publname{JOURNAL OF THE\newline
-%   AMERICAN MATHEMATICAL SOCIETY}
-%\end{verbatim}
-%
-%    Initialize \cs{publname} and \cs{@serieslogo} to no-op if
-%    \cs{publname} is not already defined.
-%    \begin{macrocode}
-%<*amsart|amsproc>
-\AtBeginDocument{%
-  \@ifundefined{publname}{%
-    \let\publname\@empty
-    \let\@serieslogo\@empty
-  }{%
-%<amsart>    \def\@serieslogo{\article@logo}%
-%<amsproc>    \def\@serieslogo{\procart@logo}%
-  }%
-}
-%</amsart|amsproc>
-%    \end{macrocode}
-%
-%    The \cs{number} prefix on current issue is to work around
-%    inconsistencies in the form of issue numbers as passed in from
-%    system level. Sometimes they will get passed in with a leading
-%    zero, which we don't want to print if it happens to occur.
-%    The |0| prevents an error if \cs{currentissue} happens to be empty.
-%    \begin{macrocode}
-%<*amsart>
-\AtBeginDocument{%
-  \@ifundefined{volinfo}{%
-    \def\volinfo{%
-      Volume \currentvolume, Number \number0\currentissue
-%    \end{macrocode}
-%    Month/year is not included initially when a journal article is
-%    posted on the WWW prior to print publication.
-%    \begin{macrocode}
-      \if\@printyear , \currentmonth\ \currentyear\fi
-    }%
-  }{}%
-}
-\def\@printyear{TF}% boolean false
-%</amsart>
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-%<*amsproc>
-\AtBeginDocument{%
-  \@ifundefined{volinfo}{\let\volinfo\@empty}{}
-}
-%</amsproc>
-%    \end{macrocode}
-%
-%    Default values for information such as volume, year, and so on are
-%    provided as follows.
-%    \begin{macrocode}
-%<*amsart|amsproc>
-\def\issueinfo#1#2#3#4{\def\currentvolume{#1}\def\currentissue{#2}%
-  \def\currentmonth{#3}\def\currentyear{#4}}
-\issueinfo{00}% volume number
-  {0}%        % issue number
-  {Xxxx}%     % month
-  {XXXX}%     % year
-%</amsart|amsproc>
-%    \end{macrocode}
-%
-%    Copyright year may be different from issue year. Allow it to be
-%    specified separately. It is probably more natural anyway, from the
-%    user's perspective, to give the copyright year in the same command
-%    when giving the name of the copyright holder.
-%    \begin{macrocode}
-\newcommand{\copyrightinfo}[2]{%
-  \def\copyrightyear{#1}%
-  \@ifnotempty{#2}{\def\copyrightholder{#2}}%
-}
-\copyrightinfo{0000}{(copyright holder)}
-%    \end{macrocode}
-%
-%    Provide page span information. If negative number is given, convert
-%    to roman numeral form.
-%    \begin{macrocode}
-%<*amsart|amsproc>
-\def\pagespan#1#2{\setcounter{page}{#1}%
-  \ifnum\c@page<\z@ \pagenumbering{roman}\setcounter{page}{-#1}\fi
-  \def\start@page{#1}\def\end@page{#2}}
-\pagespan{000}{000}
-%</amsart|amsproc>
-%    \end{macrocode}
-%
-%    Formatting for journal page numbers. [bnb, 1996/09/11]
-%    \begin{macrocode}
-%<*amsart>
-\AtBeginDocument{%
-  \@ifundefined{pageinfo}{%
-    \def\pageinfo{%
-      \ifnum\start@page=\z@
-        Pages 000--000
-      \else
-        \ifx\start@page\end@page
-          Page \start@page
-        \else
-          Pages \start@page--\end@page
-        \fi
-      \fi}%
-  }{}%
-}
-%</amsart>
-%    \end{macrocode}
-%
-%    Publisher Item Identifier (we started using them in journal logos
-%    as of January 1997).
-%    \begin{macrocode}
-%<amsart>\@ifundefined{ISSN}{\def\ISSN{0000-0000}}{}
-%<amsart>\newcommand\PII[1]{\def\@PII{#1}}
-%<amsart>\PII{S \ISSN(XX)0000-0}
-%    \end{macrocode}
-%
-%  \subsection{Copyright block}
-%
-%    Doing the copyright info on the first page is a little tricky. We
-%    want it to come at the bottom, after any footnotes and floating
-%    inserts, but before the page number. If we simply put it into
-%    \cs{@oddfoot} (in \cs{ps@plain}) its height will not be subtracted
-%    from the height of the text and then the page number will be lower
-%    than we want. So we do it as an insert.
-%
-%    Through version 1.2, this code was included only for \pkg{amsart}
-%    and \pkg{amsproc}; the formatting of some book series requires an
-%    insert at the bottom of the text block, so this code has been
-%    extended to all AMS document classes. [bnb, 1999/07/14]
-%    \begin{macrocode}
-\newinsert\copyins
-%    \end{macrocode}
-%    We set the skip register associated with this insert to the
-%    \emph{base-to-base} distance from the bottom of the page contents
-%    to the base of the first line in the copyright info. See the
-%    definition of \cs{@setcopyright}.
-%    \begin{macrocode}
-\skip\copyins=1.5pc
-\count\copyins=1000 % magnification factor, 1000 = 100%
-\dimen\copyins=.5\textheight % maximum allowed per page
-%    \end{macrocode}
-%    \cn{copyins} is ignored if a float is input on the first page;
-%    adding it to \cs{@reinserts} will make the output routine behave.
-%    [bnb; 2004/06/09; B-365]
-%    \begin{macrocode}
-\g@addto@macro\@reinserts{%
-  \ifvoid\copyins\else\insert\copyins{\unvbox\copyins}\fi
-}
-%    \end{macrocode}
-%    Put the contents into a \tex/ insert. This information is omitted
-%    unless \cs{@serieslogo} is non-null. In other words it will
-%    normally not print except when an AMS publication-specific document
-%    class such as \cls{tran-l} is used.
-%    And even if the series logo is printed, omit the copyright line
-%    if requested by |\coprightinfo{}{}|.  [bnb, 1996/10/17]
-%    \begin{macrocode}
-\def\@copyinsfontsize{\fontsize{6}{7\p@}\normalfont\upshape}
-\newif\if@extracrline  \@extracrlinefalse
-\let\@extracrline\@empty
-\relax
-\def\@setcopyright{%
-  \ifx\@empty\@serieslogo
-  \else\ifx\@empty\copyrightyear
-  \else
-    \insert\copyins{\hsize\textwidth
-      \parfillskip\z@\relax
-      \leftskip\z@\@plus.9\textwidth\relax \rightskip\z@\relax
-      \@copyinsfontsize
-%    \end{macrocode}
-%    The spacing between the preceding text and the copyright info is
-%    done with a strut of height |\skip\copyins|. (Note that
-%    \cs{lineskip} and \cs{baselineskip} are 0 in the \latex/ output
-%    routine.) The negative vskip gives an effective distance of 0 from
-%    the top of the box to the base of the first line (assuming
-%    |\skip\copyins| is greater than the height of that line). Then the
-%    apparent total height of the box will work well with \tex/'s
-%    calculations involving |\skip\copyins| for how much room to leave
-%    for this object.  An extra 6pt is allowed when an additional line
-%    is present; this adjustment was found adequate in some borderline
-%    cases where tight pages reset with the additional line had text
-%    lines moved to the next page, causing the paper length to expand
-%    by a page.  [bnb, 2004/05/07-06/24]
-%    \begin{macrocode}
-      \everypar{}%
-      \vskip-\skip\copyins
-      \if@extracrline
-        \vskip-6pt
-      \fi
-      \nointerlineskip
-      \leavevmode\hfill\vrule\@width\z@\@height\skip\copyins
-      \copyright\copyrightyear\ \copyrightholder\ignorespaces
-      \if@extracrline \@extracrline \fi
-      \par
-%    \end{macrocode}
-%    This kern of 0pt forces the depth of the last line (if any) to be
-%    added to the height of the box.
-%    \begin{macrocode}
-      \kern\z@}%
-  \fi\fi
-}
-%    \end{macrocode}
-%
-%    When \cs{@combinefloats} is called, the box \cs{@outputbox} already
-%    contains the main text of the page and any footnotes. Then \latex/
-%    adds top and bottom figures. We want to add our copyright info at
-%    the very bottom, but still inside of the vbox.
-%    \begin{macrocode}
-\def\@combinefloats{%
-  \ifx \@toplist\@empty \else \@cflt \fi
-  \ifx \@botlist\@empty \else \@cflb \fi
-  \ifvoid\copyins \else \@cflci \fi
-}
-%    \end{macrocode}
-%  \subsubsection{combine-floats-copyright-insert}
-%
-%    In the twocolumn/firstcolumn case, postpone adding the drop folio.
-%    Put an empty box of the same height at the bottom of the left-hand
-%    column to make the columns balance.  Allow a smidge of stretch in
-%    case the first page of a chapter has no internal stretch, so that
-%    the drop folio will be flush to the bottom of the text block;
-%    don't do this for a twocolumn page, to avoid an uneven bottom.
-%    \begin{macrocode}
-\def\@cflci{%
-  \setbox\@outputbox\vbox{%
-    \unvbox\@outputbox
-    \vskip\skip\copyins
-    \if@twocolumn \else \vskip\z@ plus\p@ \fi
-    \hbox to\columnwidth{%
-      \hss\vbox to\z@{\vss
-%    \end{macrocode}
-%    In two-column layout, put an empty box in the first column
-%    instead of the drop folio.
-%    \begin{macrocode}
-        \if@twocolumn
-          \if@firstcolumn \else \unvbox\copyins \fi
-        \else
-          \unvbox\copyins
-        \fi
-        }}}%
-%    \end{macrocode}
-%    Now redo the insert to make sure we get the right amount of space
-%    reserved for it in the second column.
-%    \begin{macrocode}
-  \if@twocolumn \if@firstcolumn
-    \insert\copyins{\unvbox\copyins}%
-  \fi\fi
-%    \end{macrocode}
-%    Reset the \cs{copyins} flag so that a subsequent insert
-%    (e.g.\ \cs{@dropfolio} in some book series) will work.
-%    \begin{macrocode}
-  \global\count\copyins=999 \relax
-}
-%    \end{macrocode}
-%    [End of code to support inserts at end of text block.]
-%
-%    For journals only, provide a switch that indicates the author has
-%    agreed to revert copyright to the public domain; this results in
-%    an addition to the copyright block on the article.
-%    \begin{macrocode}
-%<*amsart>
-\newif\if@revertcopyright  \@revertcopyrightfalse
-\newcommand{\revertcopyright}{%
-  \global\@revertcopyrighttrue
-  \global\@extracrlinetrue}
-%    \end{macrocode}
-%    Add notation regarding reversion of copyright to public domain if
-%    author has agreed to it.  Permit this to be set in a different
-%    size than the copyright line (required for some author packages).
-%    \begin{macrocode}
-\def\@revertcrfontsize{\fontsize{6}{7\p@}\normalfont\upshape}
-\def\@extracrline{%
-  \if@revertcopyright
-    \unskip\\
-    \@revertcrfontsize
-    Reverts to public domain 28 years from publication
-  \fi
-}
-%</amsart>
-%    \end{macrocode}
-%
-%  \subsection{Other top matter info}
-%
-%    Some name setup.
-%    \begin{macrocode}
-\newcommand{\abstractname}{Abstract}
-\newcommand{\keywordsname}{Key words and phrases}
-%    \end{macrocode}
-%    For now, support just the two most recent versions; earlier versions
-%    were:
-%    \begin{itemize}
-%    \item \textup{1980} Mathematics Subject Classification
-%    \item \textup{1980} Mathematics Subject Classification
-%          \textup{(1985} Revision\textup{)}
-%    \end{itemize}
-%    Default to the 1991 edition, as that's what is in production at the
-%    time this change is made.  [bnb, 1999/04/30]
-%    \begin{macrocode}
-\newcommand{\subjclassname}{%
-  \textup{1991} Mathematics Subject Classification}
-\@xp\let\csname subjclassname@1991\endcsname \subjclassname
-\@namedef{subjclassname@2000}{%
-  \textup{2000} Mathematics Subject Classification}
-%    \end{macrocode}
-%    For the date we have a special little problem: We only want to add
-%    the `Received by the editors' text for publication-specific
-%    document classes such as \cls{tran-l}.
-%    \begin{macrocode}
-%<amsbook>\def\@tempb{amsbook}
-%<amsproc>\def\@tempb{amsproc}
-%<amsart>\def\@tempb{amsart}
-\ifx\@classname\@tempb
-  \newcommand{\datename}{\textit{Date}:}
-\else
-  \newcommand{\datename}{Received by the editors}
-\fi
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-%<*amsart|amsproc>
-\def\@settitle{\begin{center}%
-%<amsart>  \baselineskip14\p@\relax
-%<amsproc> \Large
-    \bfseries
-%<amsart>\uppercasenonmath\@title
-  \@title
-  \end{center}%
-}
-%</amsart|amsproc>
-%    \end{macrocode}
-%
-%    For multiple authors we need to combine the author names into a
-%    list of the form Author One, Author Two, \dots, and Author Last.
-%    Change line breaking penalties to avoid a line break in the middle of
-%    an author name if there are a lot of authors. This should probably
-%    better be done by changing spaces within author names to
-%    |\nolinebreak[3]\space|, but that would take more work.
-%    [mjd,2000/12/27]
-%    \begin{macrocode}
-%<*amsart|amsproc>
-\def\author@andify{%
-  \nxandlist {\unskip ,\penalty-1 \space\ignorespaces}%
-    {\unskip {} \@@and~}%
-    {\unskip ,\penalty-2 \space \@@and~}%
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\@setauthors{%
-  \begingroup
-  \def\thanks{\protect\thanks@warning}%
-  \trivlist
-%<amsart>  \centering\footnotesize \@topsep30\p@\relax
-%<amsart>  \advance\@topsep by -\baselineskip
-%<amsproc>  \centering \fontsize{11}{13\p@}\selectfont\@topsep13\p@\relax
-  \item\relax
-  \author@andify\authors
-%    \end{macrocode}
-%    Make dbl-backslash robust to prevent problems if/when
-%    \cs{MakeTextUppercase} expansion is applied.
-%    \begin{macrocode}
-  \def\\{\protect\linebreak}%
-%<amsart>  \MakeUppercase{\authors}%
-%<amsproc>  \authors
-  \ifx\@empty\contribs
-  \else
-    ,\penalty-3 \space \@setcontribs
-    \@closetoccontribs
-  \fi
-  \endtrivlist
-  \endgroup
-}
-\def\@closetoccontribs{}
-\def\@setcontribs{%
-  \@xcontribs
-%<amsart>  \MakeUppercase{\xcontribs}%
-%<amsproc>  \xcontribs
-}
-\def\@setdate{\datename\ \@date\@addpunct.}
-\def\@setsubjclass{%
-  {\itshape\subjclassname.}\enspace\@subjclass\@addpunct.}
-\def\@setkeywords{%
-  {\itshape \keywordsname.}\enspace \@keywords\@addpunct.}
-%</amsart|amsproc>
-%    \end{macrocode}
-%
-%    The following definitions suffice for all the AMS document classes.
-%    \begin{macrocode}
-\def\@setthanks{\def\thanks##1{\par##1\@addpunct.}\thankses}
-%    \end{macrocode}
-%
-%    `Abstract' can be changed to, say, `R\'esum\'e' (French) by
-%    redefining \cn{abstractname}. This and other control sequence names
-%    (\cn{refname}, \cn{contentsname}, \cn{appendixname}, and so on) are
-%    compatible with the \pkg{babel} package (the AMS sometimes
-%    publishes articles in languages other than English.)
-%
-%    In AMS document classes, the abstract should be placed before
-%    \cn{maketitle} (otherwise the desired ordering of frontmatter
-%    elements cannot be ensured in all cases).
-%    \begin{macrocode}
-\newbox\abstractbox
-%    \end{macrocode}
-%    We start by checking whether \cn{maketitle} has already been used
-%    (in which case it was reset to \cs{relax}); if so, we give a
-%    warning that the abstract should be placed before \cn{maketitle}.
-%    \begin{macrocode}
-\newenvironment{abstract}{%
-  \ifx\maketitle\relax
-    \ClassWarning{\@classname}{Abstract should precede
-      \protect\maketitle\space in AMS document classes; reported}%
-  \fi
-  \global\setbox\abstractbox=\vtop \bgroup
-    \normalfont\Small
-    \list{}{\labelwidth\z@
-      \leftmargin3pc \rightmargin\leftmargin
-      \listparindent\normalparindent \itemindent\z@
-      \parsep\z@ \@plus\p@
-%    \end{macrocode}
-%    In order to get equation numbers indented with the rest of the
-%    abstract, we have to do this:
-%    \begin{macrocode}
-      \let\fullwidthdisplay\relax
-    }%
-    \item[\hskip\labelsep\scshape\abstractname.]%
-}{%
-  \endlist\egroup
-%    \end{macrocode}
-%    If the abstract was supposed to be typeset earlier, then
-%    \cs{@setabstract} is now equal to \cs{relax}, and we had better
-%    drop the contents of the abstract box onto the page immediately, to
-%    salvage the situation as best we can.
-%    \begin{macrocode}
-  \ifx\@setabstract\relax \@setabstracta \fi
-}
-%    \end{macrocode}
-%
-%    Because the abstract might be postponed until the end of an
-%    article, we cannot simply use the fact of a preceding
-%    \cn{maketitle} to tell whether \cs{endabstract} should immediately
-%    put the abstract box contents on the page. So we use an auxiliary
-%    function that will be reset to no-op once we have passed the point
-%    where the abstract should normally be typeset.
-%    \begin{macrocode}
-\def\@setabstract{\@setabstracta \global\let\@setabstract\relax}
-\def\@setabstracta{%
-  \ifvoid\abstractbox
-  \else
-    \skip@20\p@ \advance\skip@-\lastskip
-    \advance\skip@-\baselineskip \vskip\skip@
-    \box\abstractbox
-    \prevdepth\z@ % because \abstractbox is a vtop
-  \fi
-}
-%    \end{macrocode}
-%
-%    Title page environment does nothing much; information and
-%    formatting to be provided by the user.
-%    \begin{macrocode}
-\def\titlepage{%
-%<amsbook>  \cleardoublepage
-%<amsart|amsproc>  \clearpage
-  \thispagestyle{empty}\setcounter{page}{0}}
-\def\endtitlepage{\newpage}
-%    \end{macrocode}
-%
-%  \subsection{Macros for list labels}
-%
-%    Through version 1.2, first-level enumerated item labels were formatted
-%    with a following period, which is not AMS style.  Effective with
-%    version 2.0 these labels are formatted with parentheses.  Anyone
-%    requiring the period style will have to redefine \cs{labelenumi}.
-%    \begin{macrocode}
-\def\labelenumi{(\theenumi)}
-\def\theenumi{\@arabic\c@enumi}
-\def\labelenumii{(\theenumii)}
-\def\theenumii{\@alph\c@enumii}
-\def\p@enumii{\theenumi}
-\def\labelenumiii{(\theenumiii)}
-\def\theenumiii{\@roman\c@enumiii}
-\def\p@enumiii{\theenumi(\theenumii)}
-\def\labelenumiv{(\theenumiv)}
-\def\theenumiv{\@Alph\c@enumiv}
-\def\p@enumiv{\p@enumiii\theenumiii}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\labelitemi{$\m@th\bullet$}
-\def\labelitemii{\bfseries --}% \upshape already done by \itemize
-\def\labelitemiii{$\m@th\ast$}
-\def\labelitemiv{$\m@th\cdot$}
-%    \end{macrocode}
-%
-%  \subsection{Verse and quotation environments}
-%    \begin{macrocode}
-\newenvironment{verse}{\let\\\@centercr
-  \list{}{\itemsep\z@ \itemindent -1.5em\listparindent\itemindent
-  \rightmargin\leftmargin \advance\leftmargin 1.5em}\item[]%
-}{%
-  \endlist
-}
-\let\endverse=\endlist % for efficiency
-%    \end{macrocode}
-%    The left/right margins of the quotation environment are supposed to
-%    be the same as for the abstract environment.
-%    \begin{macrocode}
-\newenvironment{quotation}{\list{}{%
-    \leftmargin3pc \listparindent\normalparindent
-    \itemindent\z@
-    \rightmargin\leftmargin \parsep\z@ \@plus\p@}%
-  \item[]%
-}{%
-  \endlist
-}
-\let\endquotation=\endlist % for efficiency
-\newenvironment{quote}{%
-  \list{}{\rightmargin\leftmargin}\item[]%
-}{%
-  \endlist
-}
-\let\endquote=\endlist % for efficiency
-%    \end{macrocode}
-%
-%  \subsection{List environments}
-%    Changed definition of \cs{trivlist}, \env{enumerate}, and
-%    \env{itemize} in order to have \cn{makelabel} apply \cn{upshape}.
-%    \begin{macrocode}
-\def\trivlist{\parsep\parskip\@nmbrlistfalse
-  \@trivlist \labelwidth\z@ \leftmargin\z@
-  \itemindent\z@
-  \let\@itemlabel\@empty
-  \def\makelabel##1{\upshape##1}}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\renewenvironment{enumerate}{%
-  \ifnum \@enumdepth >3 \@toodeep\else
-      \advance\@enumdepth \@ne
-      \edef\@enumctr{enum\romannumeral\the\@enumdepth}\list
-      {\csname label\@enumctr\endcsname}{\usecounter
-        {\@enumctr}\def\makelabel##1{\hss\llap{\upshape##1}}}\fi
-}{%
-  \endlist
-}
-\let\endenumerate=\endlist % for efficiency
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\renewenvironment{itemize}{%
-  \ifnum\@itemdepth>3 \@toodeep
-  \else \advance\@itemdepth\@ne
-    \edef\@itemitem{labelitem\romannumeral\the\@itemdepth}%
-    \list{\csname\@itemitem\endcsname}%
-      {\def\makelabel##1{\hss\llap{\upshape##1}}}%
-  \fi
-}{%
-  \endlist
-}
-\let\enditemize=\endlist % for efficiency
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\newcommand{\descriptionlabel}[1]{\hspace\labelsep \upshape\bfseries #1:}
-\newenvironment{description}{\list{}{%
-%    \end{macrocode}
-%    Adjust the indent of the first line to the desired value:
-%    \begin{macrocode}
-  \advance\leftmargini6\p@ \itemindent-12\p@
-  \labelwidth\z@ \let\makelabel\descriptionlabel}%
-}{
-  \endlist
-}
-\let\enddescription=\endlist % for efficiency
-%    \end{macrocode}
-%
-%  \begin{macro}{\upn}
-%    The command \cn{upn} can be used to force upright font for
-%    punctuation or digits in italic text. For example
-%\begin{verbatim}
-% ... as numbered by \upn{``A''} or \upn{``1''} hereafter\upn{)}
-%\end{verbatim}
-%    \begin{macrocode}
-\let\upn=\textup
-%    \end{macrocode}
-%  \end{macro}
-%
-%    Since these margin settings are dependent on the fonts used, we
-%    postpone them until begin-document. (This means that we cannot use
-%    the values directly for calculations before begin-document.)  Allow
-%    for a reasonable maximum value; 13 = xiii = m should be adequate.
-%    \begin{macrocode}
-\AtBeginDocument{%
-  \labelsep=5pt\relax
-  \setcounter{enumi}{13}\setcounter{enumii}{13}%
-  \setcounter{enumiii}{13}\setcounter{enumiv}{13}%
-  \settowidth\leftmargini{\labelenumi\hskip\labelsep}%
-  \advance\leftmargini by \normalparindent
-  \settowidth\leftmarginii{\labelenumii\hskip\labelsep}%
-  \settowidth\leftmarginiii{\labelenumiii\hskip\labelsep}%
-  \settowidth\leftmarginiv{\labelenumiv\hskip\labelsep}%
-  \setcounter{enumi}{0}\setcounter{enumii}{0}%
-  \setcounter{enumiii}{0}\setcounter{enumiv}{0}%
-  \leftmarginv=10pt  \leftmarginvi=\leftmarginv
-  \leftmargin=\leftmargini
-  \labelwidth=\leftmargini \advance\labelwidth-\labelsep
-  \@listi}
-%    \end{macrocode}
-%
-%    In some contexts the space above/below lists needs to be
-%    suppressed. So we put it into a variable \cs{listisep}.
-%    \begin{macrocode}
-\newskip\listisep
-\listisep\smallskipamount
-\def\@listI{\leftmargin\leftmargini \parsep\z@skip
-  \topsep\listisep \itemsep\z@skip
-  \listparindent\normalparindent}
-\let\@listi\@listI
-%    \end{macrocode}
-%
-%    Is it necessary to reset \cs{parsep}, \cs{partopsep}, \cs{itemsep}
-%    to their default values (0) in each of the subordinate list
-%    setup functions? I don't believe so, but I leave the settings in
-%    the listii function just in case some unusual nesting of
-%    environments might cause trouble. [mjd,1994/09/22]
-%    \begin{macrocode}
-\def\@listii{\leftmargin\leftmarginii
-  \labelwidth\leftmarginii \advance\labelwidth-\labelsep
-  \topsep\z@skip \parsep\z@skip \partopsep\z@skip \itemsep\z@skip}
-\def\@listiii{\leftmargin\leftmarginiii
-  \labelwidth\leftmarginiii \advance\labelwidth-\labelsep}
-\def\@listiv{\leftmargin\leftmarginiv
-  \labelwidth\leftmarginiv \advance\labelwidth-\labelsep}
-\def\@listv{\leftmargin\leftmarginv
-  \labelwidth\leftmarginv \advance\labelwidth-\labelsep}
-\def\@listvi{\leftmargin\leftmarginvi
-  \labelwidth\leftmarginvi \advance\labelwidth-\labelsep}
-%    \end{macrocode}
-%
-%  \subsection{Fleqn option}
-%
-%    \begin{macrocode}
-\@ifclasswith{\@classname}{fleqn}{%
-  \let\@tempa\@iden
-  \AtBeginDocument{\mathindent\leftmargini}%
-}{\let\@tempa\@gobble}%
-\@ifpackageloaded{amsmath}{\let\@tempa\@gobble}{%
-  \@ifpackageloaded{amstex}{\let\@tempa\@gobble}{}%
-}
-\@tempa{%
-  \def\[{\relax
-    \ifmmode\@badmath
-    \else
-      \begin{trivlist}%
-      \@beginparpenalty\predisplaypenalty
-      \@endparpenalty\postdisplaypenalty
-      \item[]\leavevmode
-      \hbox to\linewidth\bgroup$\displaystyle
-%    \end{macrocode}
-%    Note that the \cs{m@th} should go at the end in \cn{]} just in
-%    case an embedded small math formula inside \cn{text} occurs in
-%    the display.
-%
-%    Why the extra bgroup here? I think it's not needed.
-%    [mjd,3-Feb-1994]
-%    \begin{macrocode}
-      \hskip\mathindent\bgroup
-    \fi}%
-  \def\]{\relax
-    \ifmmode
-      \egroup \m@th$\hfil \egroup
-      \end{trivlist}%
-    \else \@badmath
-    \fi}%
-  \renewenvironment{equation}{%
-    \@beginparpenalty\predisplaypenalty
-    \@endparpenalty\postdisplaypenalty
-    \refstepcounter{equation}%
-    \@topsep\abovedisplayskip \trivlist
-    \item[]\leavevmode
-    \hbox to\linewidth\bgroup\hskip\mathindent$\displaystyle
-  }{%
-    \m@th$\hfil \displaywidth\linewidth \hbox{\@eqnnum}\egroup
-    \endtrivlist
-  }%
-  \renewenvironment{eqnarray}{%
-    \stepcounter{equation}\let\@currentlabel\theequation
-    \global\@eqnswtrue \global\@eqcnt\z@ \tabskip\mathindent
-    \let\\=\@eqncr \abovedisplayskip\topsep
-    \ifvmode \advance\abovedisplayskip\partopsep \fi
-    \belowdisplayskip\abovedisplayskip
-    \belowdisplayshortskip\abovedisplayskip
-    \abovedisplayshortskip\abovedisplayskip
-    $$\everycr{}\halign to\linewidth\bgroup
-      \hskip\@centering
-      $\displaystyle\tabskip\z@skip####\m@th$&%
-      \@eqnsel \global\@eqcnt\@ne
-      \hfil${}####{}\m@th$\hfil&%
-      \global\@eqcnt\tw@
-      $\displaystyle ####\m@th$\hfil\tabskip\@centering&%
-      \global\@eqcnt\thr@@
-      \hbox to \z@\bgroup\hss####\egroup\tabskip\z@skip\cr
-    }{%
-      \@@eqncr \egroup \global\advance\c@equation\m@ne$$%
-      \global\@ignoretrue
-    }%
-  \newdimen\mathindent
-  \mathindent\leftmargini
-}
-%    \end{macrocode}
-%
-%  \subsection{Redefined internal sectioning commands}
-%
-%    In amsart.sty \cs{@startsection}, \cs{@sect},
-%    and a couple of other things are redefined to fix a few hard-coded
-%    things that would interfere with the desired style.  The most
-%    noteworthy difference is that all section headings will go into the
-%    table of contents (governed by secnumdepth as usual), EVEN WHEN THE
-%    |*| FORM IS USED.  The only section heading not listed in the table of
-%    contents is the heading for the toc itself.
-%
-%    A second major departure from standard \latex/ is that when a
-%    short form of a section title is given, it is used only for the
-%    running heads; the table of contents still gets the full version of
-%    the title. This is correct for AMS editorial practice. However if
-%    one wants to get a line break into the table of contents it means
-%    that the standard \latex/ method cannot be used. See the
-%    \cn{except} and \cn{for} commands.
-%    \begin{macrocode}
-\def\@startsection#1#2#3#4#5#6{%
-%    \end{macrocode}
-%    Section titles, if they are run-in with the following text, are
-%    stored in a box instead of being typeset right away.  They will be
-%    typeset by \cs{everypar}, but if one section heading follows
-%    right after another, this won't happen.  So by doing
-%    \cs{leavevmode} we force this to happen.  (\cs{if@noskipsec}
-%    is true if the previous section title has not yet been typeset.)
-%    \begin{macrocode}
- \if@noskipsec \leavevmode \fi
- \par \@tempskipa #4\relax
- \@afterindenttrue
- \ifdim \@tempskipa <\z@ \@tempskipa -\@tempskipa \@afterindentfalse\fi
- \if@nobreak \everypar{}\else
-     \addpenalty\@secpenalty\addvspace\@tempskipa\fi
-%    Don't call \@ssect in the ifstar case:
- \@ifstar{\@dblarg{\@sect{#1}{\@m}{#3}{#4}{#5}{#6}}}%
-         {\@dblarg{\@sect{#1}{#2}{#3}{#4}{#5}{#6}}}%
-}
-%    \end{macrocode}
-%
-%    We add \cn{textup} here in order to make section
-%    numbers always roman, even if the rest of the section head is
-%    italic.
-%    \begin{macrocode}
-\def\@seccntformat#1{%
-  \protect\textup{\protect\@secnumfont
-    \csname the#1\endcsname
-    \protect\@secnumpunct
-  }%
-}
-%    \end{macrocode}
-%
-%    Some journals require a different font for section numbers. (As
-%    coded here, this option permits only a change of weight, to
-%    \cn{bfseries}.)  The \cls{amsart} font is checked again later,
-%    when processing \cn{section}, and if there is no section title,
-%    it is made bold.
-%    \begin{macrocode}
-%<amsbook|amsproc>\let\@secnumfont\@empty
-%<amsart>\def\@secnumfont{\mdseries}
-%    \end{macrocode}
-%
-%     For reference, here is the argument list for \cs{@sect}.
-%\begin{verbatim}
-% % #1    #2     #3      #4          #5         #6     #7      #8
-% {NAME}{LEVEL}{INDENT}{BEFORESKIP}{AFTERSKIP}{STYLE}[SHORTT]{TITLE}
-%\end{verbatim}
-%    \begin{macrocode}
-\def\@sect#1#2#3#4#5#6[#7]#8{%
-%    \end{macrocode}
-%    Define \cs{@toclevel} for for \cs{@tocwrite} (to
-%    \cs{@tochangmeasure}).
-%    \begin{macrocode}
-  \edef\@toclevel{\ifnum#2=\@m 0\else\number#2\fi}%
-  \ifnum #2>\c@secnumdepth \let\@secnumber\@empty
-  \else \@xp\let\@xp\@secnumber\csname the#1\endcsname\fi
-%    \end{macrocode}
-%    If the value of afterskip $>0$, then this is not a run-in section
-%    heading, and we want to suppress final punctuation.
-%    \begin{macrocode}
-  \@tempskipa #5\relax
-%    \end{macrocode}
-%    \cs{@svsec} will be the section number plus some formatting if
-%    the star form was not used and if the depth of numbering extends to
-%    the current level. The user can change secnumdepth to control how
-%    many levels of sectioning will be numbered.
-%    \begin{macrocode}
-  \ifnum #2>\c@secnumdepth
-    \let\@svsec\@empty
-  \else
-    \refstepcounter{#1}%
-%    \end{macrocode}
-%    If the section heading is not run-in and there is no title, omit
-%    final punctuation and space.  If it is run-in, omit extra space.
-%    \begin{macrocode}
-    \edef\@secnumpunct{%
-      \ifdim\@tempskipa>\z@ % not a run-in section heading
-        \@ifnotempty{#8}{.\@nx\enspace}%
-      \else
-        \@ifempty{#8}{.}{.\@nx\enspace}%
-      \fi
-    }%
-%    \end{macrocode}
-%    For \cls{amsart}, if a subsection has no title, make the section
-%    number bold; otherwise leave it alone.
-%    [bnb; 2004/06/08; per vwa, B-442]
-%    \begin{macrocode}
-%<amsart>    \@ifempty{#8}{%
-%<amsart>      \ifnum #2=\tw@ \def\@secnumfont{\bfseries}\fi}{}%
-%    \end{macrocode}
-%    If the |*|-form was not used (\arg{2} less than 1000), we add
-%    \cn{sectionname} or whatever as a prefix, separated by a space.
-%    We need the ifundefined test in order to know whether the space
-%    should be added or not.  There must be a better way to do this
-%    but I haven't thought of it yet.
-%    \begin{macrocode}
-    \protected@edef\@svsec{%
-      \ifnum#2<\@m
-        \@ifundefined{#1name}{}{%
-          \ignorespaces\csname #1name\endcsname\space
-        }%
-      \fi
-      \@seccntformat{#1}%
-    }%
-  \fi
-  \ifdim \@tempskipa>\z@ % then this is not a run-in section heading
-    \begingroup #6\relax
-    \@hangfrom{\hskip #3\relax\@svsec}{\interlinepenalty\@M #8\par}%
-    \endgroup
-%    \end{macrocode}
-%
-%    Section headings don't set marks for the running heads in the article
-%    style, only in the amsbook style. Assumption: \cs{sectionmark} is
-%    defined to call \cs{@secnumber} as its penultimate argument.
-%    \begin{macrocode}
-%<amsbook>  \csname #1mark\endcsname{#7}%
-%    \end{macrocode}
-%    If \arg{2} (level) is greater than 1000 then we don't do a table
-%    of contents entry. This happens only for the section heading above
-%    the table of contents itself.
-%    \begin{macrocode}
-    \ifnum#2>\@m \else \@tocwrite{#1}{#8}\fi
-  \else
-%    \end{macrocode}
-%    Otherwise we're doing a run-in heading; it is stored as \cs{@svsechd},
-%    which will be typeset by \cs{everypar} as soon as some text is
-%    encountered.
-%    \begin{macrocode}
-  \def\@svsechd{#6\hskip #3\@svsec
-%    \end{macrocode}
-%    To allow for the possibility that the user wants an empty section
-%    title, leaving just the section number, we check whether \arg{8}
-%    is nonempty before adding the period.
-%    \begin{macrocode}
-    \@ifnotempty{#8}{\ignorespaces#8\unskip
-%    \end{macrocode}
-%    The following test is to prevent a period being added if the
-%    section title ended in a question mark or other punctuation.
-%    \begin{macrocode}
-       \@addpunct.}%
-    \ifnum#2>\@m \else \@tocwrite{#1}{#8}\fi
-  }%
-  \fi
-%    \end{macrocode}
-%    In a previous version of \cls{amsart} \cs{@nobreaktrue} was added to
-%    \cs{@xsect} for some reason. Let's keep that just in case it was done to
-%    prevent a certain kind of bug. [mjd,17-Aug-1994]
-%    \begin{macrocode}
-  \global\@nobreaktrue
-%    \end{macrocode}
-%    \cs{@xsect} does some more stuff based on whether this is a run-in
-%    heading or not.
-%    \begin{macrocode}
-  \@xsect{#5}}
-%    \end{macrocode}
-%
-%    Undefine \cs{@ssect} to save memory; it's not needed in \cls{amsart}.
-%    \begin{macrocode}
-\let\@ssect\relax
-%    \end{macrocode}
-%
-%  \subsection{Chapters and sections}
-%    Allocate counters for sectioning commands. Paragraph and subparagraph
-%    counters are allocated but normally not used.
-%    \begin{macrocode}
-\newcounter{part}
-%<amsbook>\newcounter{chapter}
-%<amsproc|amsart>\newcounter{section}
-%<amsbook>\newcounter{section}[chapter]
-%<amsbook>\def\thesection{\arabic{section}}
-\newcounter{subsection}[section]
-\newcounter{subsubsection}[subsection]
-\newcounter{paragraph}[subsubsection]
-\newcounter{subparagraph}[paragraph]
-%    \end{macrocode}
-%    Set numbering style for sectioning commands. In a couple of cases
-%    resetting is unnecessary but we include the full list here for
-%    completeness.
-%    \begin{macrocode}
-\renewcommand\thepart          {\arabic{part}}
-%<amsbook>\renewcommand\thechapter       {\arabic{chapter}}
-\renewcommand\thesection       {\arabic{section}}
-\renewcommand\thesubsection    {\thesection.\arabic{subsection}}
-\renewcommand\thesubsubsection {\thesubsection .\arabic{subsubsection}}
-\renewcommand\theparagraph     {\thesubsubsection.\arabic{paragraph}}
-\renewcommand\thesubparagraph  {\theparagraph.\arabic{subparagraph}}
-%    \end{macrocode}
-%    Depth of section numbering; if \fn{secnumdepth} were 2 instead of
-%    3, \cn{subsubsection} would not be numbered.
-%    \begin{macrocode}
-\setcounter{secnumdepth}{3}
-%    \end{macrocode}
-%
-%    The arguments of \cs{@startsection} are given for reference:
-%\begin{verbatim}
-% % #1    #2     #3      #4          #5         #6
-% {NAME}{LEVEL}{INDENT}{BEFORESKIP}{AFTERSKIP}{STYLE}
-%\end{verbatim}
-%
-%    \begin{macrocode}
-\def\partname{Part}
-%<*amsart|amsproc>
-\def\part{\@startsection{part}{0}%
-  \z@{\linespacing\@plus\linespacing}{.5\linespacing}%
-  {\normalfont\bfseries\raggedright}}
-%</amsart|amsproc>
-%    \end{macrocode}
-%
-%    Specialsection correlates to our inhouse Z-head.
-%    \begin{macrocode}
-\def\specialsection{\@startsection{section}{1}%
-%<amsart>  \z@{\linespacing\@plus\linespacing}{.5\linespacing}%
-%<amsproc|amsbook>  \z@{2\linespacing\@plus\linespacing}{.5\linespacing}%
-%<amsart>  {\normalfont\centering}}
-%<amsproc|amsbook>  {\large\scshape\centering}}
-%    \end{macrocode}
-%
-%    In the book class \cn{part} puts the part title on a separate
-%    page.
-%    \begin{macrocode}
-%<*amsbook>
-\def\part{\cleardoublepage \thispagestyle{empty}%
-  \null\vfil  \markboth{}{}\secdef\@part\@spart}
-%
-\def\@part[#1]#2{%
-  \ifnum \c@secnumdepth >-2\relax \refstepcounter{part}%
-    \addcontentsline{toc}{part}{\partname\ \thepart.
-        \protect\enspace\protect\noindent#1}%
-  \else
-    \addcontentsline{toc}{part}{#1}\fi
-  \begingroup\centering
-  \ifnum \c@secnumdepth >-2\relax
-       {\fontsize{\@xviipt}{22}\bfseries
-         \partname\ \thepart} \vskip 20\p@ \fi
-  \fontsize{\@xxpt}{25}\bfseries
-      #1\vfil\vfil\endgroup \newpage\thispagestyle{empty}}
-
-\def\@spart#1{\addcontentsline{toc}{part}{\protect\noindent#1}%
-  \begingroup\centering
-  \fontsize{\@xxpt}{25}\bfseries
-     #1\vfil\vfil\endgroup \newpage\thispagestyle{empty}}
-%</amsbook>
-%    \end{macrocode}
-%
-%    The arguments of \cs{partrunhead} are \cs{partname},
-%    \cs{thepart}, and the text of the part title. The first two were
-%    fully expanded during the marking process. Use of a mere
-%    interword space between the first two args makes it possible
-%    to apply \cn{ignorespaces} and \cn{unskip} as shown here
-%    to produce the desired results if one or the other is empty.
-%    \begin{macrocode}
-%<*amsbook>
-\def\partrunhead#1#2#3{%
-  \@ifnotempty{#2}{\uppercase{\ignorespaces#1 #2\unskip}\@ifnotempty{#3}{. }}%
-  \def\@tempa{#3}%
-  \ifx\@empty\@tempa\else
-    \begingroup \def\\{ \ignorespaces}% defend against questionable usage
-    \uppercasenonmath\@tempa\@tempa
-    \endgroup
-  \fi
-}
-\let\chapterrunhead\partrunhead
-\let\sectionrunhead\partrunhead
-%</amsbook>
-%    \end{macrocode}
-%
-%    Section headings in the amsbook style differ from the amsart
-%    style in a couple of ways: The ones that aren't centered are
-%    indented on the left, instead of flush left; and the first
-%    level, \cn{section}, is not small caps but bold.
-%    Cf.~the definition of \cn{appendix}.
-%    \begin{macrocode}
-\def\section{\@startsection{section}{1}%
-  \z@{.7\linespacing\@plus\linespacing}{.5\linespacing}%
-%<amsart>  {\normalfont\scshape\centering}}
-%<amsbook|amsproc>  {\normalfont\bfseries\centering}}
-%    \end{macrocode}
-%
-%    Negative value for \arg{5} is a signal to make a run-in heading instead
-%    of doing a vskip after the heading.
-%    \begin{macrocode}
-\def\subsection{\@startsection{subsection}{2}%
-%<amsart>  \z@{.5\linespacing\@plus.7\linespacing}{-.5em}%
-%<amsbook|amsproc>  \normalparindent{.5\linespacing\@plus.7\linespacing}{-.5em}%
-  {\normalfont\bfseries}}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\subsubsection{\@startsection{subsubsection}{3}%
-%<amsart>  \z@{.5\linespacing\@plus.7\linespacing}{-.5em}%
-%<amsbook|amsproc>  \normalparindent\z@{-.5em}%
-  {\normalfont\itshape}}
-%    \end{macrocode}
-%
-%    Fontdimen 2 of the current font is the ideal interword space of the
-%    font. Thus the following spec says that the space after the
-%    paragraph heading should be a normal interword space (but
-%    nonstretching and nonshrinking).
-%    \begin{macrocode}
-\def\paragraph{\@startsection{paragraph}{4}%
-%<amsart>  \z@\z@{-\fontdimen2\font}%
-%<amsbook|amsproc>  \normalparindent\z@{-\fontdimen2\font}%
-  \normalfont}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\subparagraph{\@startsection{subparagraph}{5}%
-  \z@\z@{-\fontdimen2\font}%
-  \normalfont}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-%<*amsart|amsproc>
-\def\appendix{\par\c@section\z@ \c@subsection\z@
-   \let\sectionname\appendixname
-   \def\thesection{\@Alph\c@section}}
-\def\appendixname{Appendix}
-%</amsart|amsproc>
-%    \end{macrocode}
-%
-%    A slower, but fully expandable definition of \cs{@Roman} to avoid
-%    the nonexpandable \cn{uppercase} which is undesirable in certain
-%    circumstances.
-%    \begin{macrocode}
-\def\@Roman#1{\@xp\@slowromancap
-  \romannumeral#1@}%
-%
-\def\@slowromancap#1{\ifx @#1% then terminate
-  \else
-%    \end{macrocode}
-%    Note: \cs{if} is required here, not \cs{ifx}, because
-%    \cs{romannumeral} returns category 12 letters!
-%    \begin{macrocode}
-    \if i#1I\else\if v#1V\else\if x#1X\else\if l#1L\else\if
-    c#1C\else\if m#1M\else#1\fi\fi\fi\fi\fi\fi
-    \@xp\@slowromancap
-  \fi
-}
-%    \end{macrocode}
-%
-%  \subsection{Book features}
-%    Books (monographs) comprise three distinct sections,
-%    \cn{frontmatter}, \cn{mainmatter}, and \cn{backmatter}.  The
-%    \cn{frontmatter} would consist of the title page, copyright page,
-%    table of contents, preface, etc.  The \cn{mainmatter} would
-%    be the body of the book.  The \cn{backmatter} would include the
-%    appendix, bibliography, glossary, and index.
-%    \begin{macrocode}
-%<*amsbook>
-\def\frontmatter{\cleardoublepage\pagenumbering{roman}}
-\def\mainmatter{\cleardoublepage\pagenumbering{arabic}}
-\def\backmatter{%
-  \if@openright\cleardoublepage\else\clearpage\fi
-  \let\chaptername\relax}
-%</amsbook>
-%    \end{macrocode}
-%
-%    Book proceedings and monographs allow a signature to print at the
-%    end of a preface.
-%    \begin{macrocode}
-%<*!amsart>
-\def\aufm#1{\par\vspace*{12pt}{\flushright #1\par}}
-%</!amsart>
-%    \end{macrocode}
-%
-%    Monographs can have a special exercise environment.
-%
-%    \begin{macrocode}
-%<*amsbook>
-\newenvironment{xcb}{%
-  \setcounter{enumi}{0}%
-  \settowidth{\leftmargini}{\labelenumi\hskip\labelsep}%
-  \setcounter{enumii}{4}% letter d
-  \settowidth{\leftmarginii}{\labelenumii\hskip\labelsep}%
-  \@startsection{section}% counter name; ignored because of the
-                                % * below
-  {1}% sectioning level
-  {\z@}% indent to the left of the section title
-  {18\p@\@plus2\p@}% vertical space above
-  {1sp}% Space below of 13pt base-to-base, so none needs to be added
-      % here; but \z@ would cause the following text to be run-in, so we
-      % use 1sp instead.
-  {\bfseries}% The font of the subsection title
-  *% always unnumbered
-}{%
-  \par
-}
-%</amsbook>
-%    \end{macrocode}
-%
-%  \subsection{Book chapters}
-%    The \cn{chapter} command is provided only in the \cls{amsbook} class,
-%    not in \cls{amsart} or \cls{amsproc}.
-%    \begin{macrocode}
-%<*amsbook>
-\def\chapter{%
-  \if@openright\cleardoublepage\else\clearpage\fi
-  \thispagestyle{plain}\global\@topnum\z@
-  \@afterindenttrue \secdef\@chapter\@schapter}
-%    \end{macrocode}
-%    \cs{@chapter} for numbered chapters.
-%    \begin{macrocode}
-\def\@chapter[#1]#2{\refstepcounter{chapter}%
-  \ifnum\c@secnumdepth<\z@ \let\@secnumber\@empty
-  \else \let\@secnumber\thechapter \fi
-  \typeout{\chaptername\space\@secnumber}%
-  \def\@toclevel{0}%
-  \ifx\chaptername\appendixname \@tocwriteb\tocappendix{chapter}{#2}%
-  \else \@tocwriteb\tocchapter{chapter}{#2}\fi
-  \chaptermark{#1}%
-  \addtocontents{lof}{\protect\addvspace{10\p@}}%
-  \addtocontents{lot}{\protect\addvspace{10\p@}}%
-  \@makechapterhead{#2}\@afterheading}
-%    \end{macrocode}
-%    \cs{@schapter} for unnumbered chapters.
-%    \begin{macrocode}
-\def\@schapter#1{\typeout{#1}%
-  \let\@secnumber\@empty
-  \def\@toclevel{0}%
-  \ifx\chaptername\appendixname \@tocwriteb\tocappendix{chapter}{#1}%
-  \else \@tocwriteb\tocchapter{chapter}{#1}\fi
-  \chaptermark{#1}%
-  \addtocontents{lof}{\protect\addvspace{10\p@}}%
-  \addtocontents{lot}{\protect\addvspace{10\p@}}%
-  \@makeschapterhead{#1}\@afterheading}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\newcommand\chaptername{Chapter}
-\newcommand\appendixname{Appendix}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\@makechapterhead#1{\global\topskip 7.5pc\relax
-  \begingroup
-  \fontsize{\@xivpt}{18}\bfseries\centering
-%    \end{macrocode}
-%    In order to keep the chapter number ``CHAPTER III'' from
-%    getting in the way of the \cs{topskip} we put it inside
-%    the paragraph containing the main title.  Then we have to
-%    do some laborious \cs{rlap}ing and \cs{hskip}ing to
-%    position it correctly.
-%    \begin{macrocode}
-    \ifnum\c@secnumdepth>\m@ne
-      \leavevmode \hskip-\leftskip
-      \rlap{\vbox to\z@{\vss
-          \centerline{\normalsize\mdseries
-              \uppercase\@xp{\chaptername}\enspace\thechapter}
-          \vskip 3pc}}\hskip\leftskip\fi
-     #1\par \endgroup
-  \skip@34\p@ \advance\skip@-\normalbaselineskip
-  \vskip\skip@ }
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\@makeschapterhead#1{\global\topskip 7.5pc\relax
-  \begingroup
-  \fontsize{\@xivpt}{18}\bfseries\centering
-  #1\par \endgroup
-  \skip@34\p@ \advance\skip@-\normalbaselineskip
-  \vskip\skip@ }
-%</amsbook>
-%    \end{macrocode}
-%    The \cn{appendix} command, following the \latex/ book, marks the
-%    start of a division after \cn{mainmatter} and before
-%    \cn{backmatter} that consists of appendixes.
-%    \begin{macrocode}
-%<*amsbook>
-\def\appendix{\par
-  \c@chapter\z@ \c@section\z@
-  \let\chaptername\appendixname
-  \def\thechapter{\@Alph\c@chapter}}
-%</amsbook>
-%    \end{macrocode}
-%
-%  \subsection{Table of contents macros}
-%
-%    \cn{tableofcontents} is like \cn{chapter} or \cn{section} except
-%    for no number and no table of contents entry.
-%
-%    \cs{@pnumwidth} is the maximum width for page numbers in a table of
-%    contents.  |1.6em| allows enough room for three digits.
-%    \begin{macrocode}
-\newcommand{\@pnumwidth}{1.6em}
-%    \end{macrocode}
-%    \cs{@tocrmarg} is \cs{@pnumwidth} plus the desired minimum
-%    space (|1em|) between page numbers and the preceding text.
-%    \begin{macrocode}
-\newcommand{\@tocrmarg}{2.6em}
-%<amsart>\setcounter{tocdepth}{2}
-%<amsbook|amsproc>\setcounter{tocdepth}{1}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\newswitch{toc}
-\newswitch{lof}
-\newswitch{lot}
-%    \end{macrocode}
-%
-%    Since table of contents, list of figures and list of figures
-%    are identical in design as far as the chapter heading and other
-%    preliminaries go, we redefine \cs{@starttoc} to do the necessary
-%    work, rather than defining a new macro (which would use up another
-%    control sequence name).
-%
-%    We define first the article form of \cs{@starttoc}, then the book
-%    form.
-%
-%    Owing to confusion about what font to use for \cn{contentsname}, a
-%    symbolic name has been assigned to provide flexibility.
-%    \begin{macrocode}
-%<*amsart|amsproc>
-\newcommand\contentsnamefont{\scshape}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\@starttoc#1#2{\begingroup
-  \setTrue{#1}%
-%    \end{macrocode}
-%    Remove the skip after the abstract so that we can substitute another.
-%    \begin{macrocode}
-  \par\removelastskip\vskip\z@skip
-%    \end{macrocode}
-%    The first two arguments of \cs{@startsection} here are special values
-%    that cause different internal branches to be taken.
-%\begin{verbatim}
-%    Arguments: {} = name = empty
-%    \@M = no number should be used and no table of contents entry
-%    \z@ = indent amount
-%    12pt + 12pt = vskip before
-%    6pt = vskip after
-%    \centering\contentsnamefont = format
-%\end{verbatim}
-%    \begin{macrocode}
-  \@startsection{}\@M\z@{\linespacing\@plus\linespacing}%
-    {.5\linespacing}{\centering\contentsnamefont}{#2}%
-%    \end{macrocode}
-%    If we have a list of figures or list of tables we want to put
-%    them in the main table of contents, but we don't want to put an
-%    entry there for the main table of contents itself. So we check
-%    to see if argument 2 is \cn{contentsname} and if it is then
-%    we refrain from doing \cn{addcontentsline}.
-%    \begin{macrocode}
-  \ifx\contentsname#2%
-  \else \addcontentsline{toc}{section}{#2}\fi
-  \makeatletter
-  \@input{\jobname.#1}%
-  \if@filesw
-    \@xp\newwrite\csname tf@#1\endcsname
-    \immediate\@xp\openout\csname tf@#1\endcsname \jobname.#1\relax
-  \fi
-  \global\@nobreakfalse \endgroup
-  \addvspace{32\p@\@plus14\p@}%
-  \let\tableofcontents\relax
-}
-%</amsart|amsproc>
-%    \end{macrocode}
-%    And here is the book form of \cs{@starttoc}.
-%    \begin{macrocode}
-%<*amsbook>
-\def\@starttoc#1#2{%
-  \begingroup
-  \setTrue{#1}%
-%    \end{macrocode}
-%    Inside this group we change \cs{secdef} so that we can call
-%    \cn{chapter} and only get the preliminary part of its definition
-%    that we need.
-%    \begin{macrocode}
-  \let\secdef\@gobbletwo \chapter
-%    \end{macrocode}
-%    If we have a list of figures or list of tables we want to put
-%    them in the main table of contents, but we don't want to put an
-%    entry there for the main table of contents itself. So we check
-%    to see if argument 2 is \cn{contentsname} and if it is then
-%    we refrain from doing \cn{addcontentsline}.
-%    \begin{macrocode}
-  \let\@secnumber\@empty % for \@tocwrite and \chaptermark
-  \ifx\contentsname#2%
-  \else \@tocwrite{chapter}{#2}\fi
-%    \end{macrocode}
-%    Now we do the equivalent of \cs{@schapter}. Expand \arg{2} so that
-%    it will be easy to apply uppercasing to it. (For \cs{@starttoc} we
-%    assume that \arg{2} is always a control such as \cn{contentsname}.)
-%    \begin{macrocode}
-  \typeout{#2}\@xp\chaptermark\@xp{#2}%
-  \@makeschapterhead{#2}\@afterheading
-%    \end{macrocode}
-%    Protect against document classes that have nonzero \cs{parskip}.
-%    \begin{macrocode}
-  \parskip\z@skip
-%    \end{macrocode}
-%    And finally we read in the \fn{.toc} (or whatever) file.
-%    \begin{macrocode}
-  \makeatletter
-  \@input{\jobname.#1}%
-  \if@filesw
-    \@xp\newwrite\csname tf@#1\endcsname
-    \immediate\@xp\openout\csname tf@#1\endcsname \jobname.#1\relax
-  \fi
-  \global\@nobreakfalse \endgroup
-  \newpage
-}
-%</amsbook>
-%    \end{macrocode}
-%
-%    Now it is easy to define \cn{tableofcontents} and its relatives.
-%    \begin{macrocode}
-\def\contentsname{Contents}
-\def\listfigurename{List of Figures}
-\def\listtablename{List of Tables}
-\def\tableofcontents{%
-  \@starttoc{toc}\contentsname
-}
-\def\listoffigures{\@starttoc{lof}\listfigurename}
-\def\listoftables{\@starttoc{lot}\listtablename}
-%    \end{macrocode}
-%
-%    In order to automatically leave enough space for the `number' part
-%    of toc entries, we compute the maximum width of the `number' part
-%    for each sectioning level and pass that information to
-%    \cs{@tocline} through the \fn{.aux} file.
-%
-%    Init the tocindents if they are not yet set (first run).
-%    \begin{macrocode}
-\AtBeginDocument{%
-  \@for\@tempa:=-1,0,1,2,3\do{%
-    \@ifundefined{r@tocindent\@tempa}{%
-      \@xp\gdef\csname r@tocindent\@tempa\endcsname{0pt}}{}%
-  }%
-}
-%    \end{macrocode}
-%
-%  \begin{macro}{\@writetocindents}
-%    This function writes out the max toc indents to the aux file.
-%    \begin{macrocode}
-\def\@writetocindents{%
-  \begingroup
-  \@for\@tempa:=-1,0,1,2,3\do{%
-    \immediate\write\@auxout{%
-      \string\newlabel{tocindent\@tempa}{%
-        \csname r@tocindent\@tempa\endcsname}}%
-  }%
-  \endgroup}
-%
-\AtEndDocument{\@writetocindents}
-%    \end{macrocode}
-%  \end{macro}
-%
-
-%  \begin{macro}{\indentlabel}
-%    This function is a no-op except in \cs{@tocwrite} where it is a
-%    pointer to \cs{@tochangmeasure}.
-%    \begin{macrocode}
-\let\indentlabel\@empty
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{\@tochangmeasure}
-%    This function measures the hangindent part of a toc entry and
-%    updates the current max for the given sectioning level, if
-%    necessary. The max's at the end of the document will be written
-%    in the form of a pseudo-label to the \fn{.aux} file by
-%    \cs{@writetocindents}.
-%
-%    We can assume that \cs{@tochangmeasure} is already inside a group
-%    when called.
-%    \begin{macrocode}
-\def\@tochangmeasure#1{\sbox\z@{#1}%
-  \ifdim\wd\z@>\csname r@tocindent\@toclevel\endcsname\relax
-    \@xp\xdef\csname r@tocindent\@toclevel\endcsname{\the\wd\z@}%
-  \fi
-}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{\@toclevel}
-%    Initialize, for the record.
-%    \begin{macrocode}
-\def\@toclevel{0}
-%    \end{macrocode}
-%  \end{macro}
-%
-%    Since we don't have leader dots, we have \cs{@tocline} instead of
-%    \cs{@dottedtocline}.
-%    \begin{macrocode}
-\def\@tocline#1#2#3#4#5#6#7{\relax
-  \ifnum #1>\c@tocdepth % then omit
-  \else
-    \par \addpenalty\@secpenalty\addvspace{#2}%
-    \begingroup \hyphenpenalty\@M
-    \@ifempty{#4}{%
-      \@tempdima\csname r@tocindent\number#1\endcsname\relax
-    }{%
-      \@tempdima#4\relax
-    }%
-    \parindent\z@ \leftskip#3\relax \advance\leftskip\@tempdima\relax
-    \rightskip\@pnumwidth plus4em \parfillskip-\@pnumwidth
-    #5\leavevmode\hskip-\@tempdima #6\nobreak\relax
-    \hfil\hbox to\@pnumwidth{\@tocpagenum{#7}}\par
-    \nobreak
-    \endgroup
-  \fi}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\@tocpagenum#1{\hss{\mdseries #1}}
-%    \end{macrocode}
-%
-%    The function \cs{@tocwrite} writes the information of a section
-%    heading to the \fn{.toc} file in a standard form. It allows
-%    different functions to be substituted for \cs{numberline}, to get
-%    greater control of toc formatting.
-%    \begin{macrocode}
-\def\@tocwrite#1{\@xp\@tocwriteb\csname toc#1\endcsname{#1}}
-%    \end{macrocode}
-%    The \cn{chapter} command uses \cs{@tocwriteb} directly because of
-%    the need to write slightly different things to the toc file
-%    depending on the current value of \cn{chaptername}.
-%    \begin{macrocode}
-\def\@tocwriteb#1#2#3{%
-  \begingroup
-    \def\@tocline##1##2##3##4##5##6{%
-      \ifnum##1>\c@tocdepth
-      \else \sbox\z@{##5\let\indentlabel\@tochangmeasure##6}\fi}%
-    \csname l@#2\endcsname{#1{\csname#2name\endcsname}{\@secnumber}{}}%
-  \endgroup
-  \addcontentsline{toc}{#2}%
-    {\protect#1{\csname#2name\endcsname}{\@secnumber}{#3}}}
-%    \end{macrocode}
-%
-%    Specs for monograph toc are as follows (tocdepth is 1, i.e.,
-%    subsections and lower are not listed in toc).
-%\begin{verbatim}
-% Part: Space above 12pt plus2pt, indent 0pt, "Part" + wordspace +
-% number + "." + 1em + title (raggedright, no hangindent) + 1em +
-% page number in column 1.6em wide.
-%
-% Chapter: Space above 8pt, hangindent on ("Chapter 0" + "." + 1em),
-% + title (raggedright) + 1em + page number in column 1.6em wide.
-%
-% Appendix: Same as Chapter except for epithet "Appendix M"
-%
-% Section: Space above 0pt, hangindent on (1pc + "0.0" + "." + 1em),
-% + title (raggedright) + 1em + page number in column 1.6em wide.
-%\end{verbatim}
-%
-%    Specs for article toc are as follows (tocdepth 2):
-%\begin{verbatim}
-% Section: Same as for monograph.
-%
-% Subsection: Space above 0pt, hangindent 6pc (number + "." + 1em),
-% + title (raggedright) + 1em + page number in column 1.6em wide.
-%
-% Subsubsection: Same as subsection but hangindent 8pc
-%\end{verbatim}
-%
-%    Typical invocation of \cs{l@chapter}:
-%\begin{verbatim}
-% \contentsline{chapter}{%
-%   \tocchapter{Chapter}{3}{Some title stuff}}{103}
-% -->\l@chapter-->
-%           #1 #2   #3  #4 #5
-% \@tocline{0}{8pt}{0pt}{}{\bfseries}
-%    #6           6a      6b 6c                 #7
-%   {\tocchapter{Chapter}{3}{Some title stuff}}{103}
-%\end{verbatim}%
-%    The \cs{tocchapter} is a slightly more useful form than
-%    \cs{numberline} that allows control for optionally omitting strings
-%    like `Chapter' or changing fonts for subcomponents of the toc
-%    entry. Note that it is allowed to have appendix and chapter at the
-%    same toc level, with \cs{tocappendix} instead of \cs{tocchapter}
-%    written in the \fn{.toc} file.
-%
-%    The arguments of \cs{@tocline} are as follows:
-%\begin{verbatim}
-% \@tocline{LEVEL}{VSPACE}{INDENT}{NUMBERWIDTH}{EXTRA}%
-%   {TEXT}{PAGENUM}
-%\end{verbatim}%
-%    where `numberwidth' is the width of the box allotted to contain the
-%    section number, including any preceding word like `Chapter' or
-%    `Part'. If this width arg is empty then an automatically computed
-%    width (max over TOC of the numberwidths for this level) is used.
-%    The `extra' argument is formatting such as font changes.
-%    The `text' argument contains a section-command specific function
-%    like \cs{tocsection} or \cs{tocchapter} which takes in turn three
-%    arguments: epithet, number, topic.
-%    \begin{macrocode}
-\def\l@section{\@tocline{1}{0pt}{1pc}{}{}}
-%    \end{macrocode}
-%    *** The indents do not agree between in-house and distributed ***\\
-%    *** versions; no changes; get specs before revising.          ***\\
-%    The use of \cn{ignorespaces} in \cs{tocsection} and its relatives
-%    means that if \arg{1} is empty, the following space will be also
-%    removed.
-%    \begin{macrocode}
-\newcommand{\tocsection}[3]{%
-  \indentlabel{\@ifnotempty{#2}{\ignorespaces#1 #2.\quad}}#3}
-\def\l@subsection{\@tocline{2}{0pt}{1pc}{5pc}{}}
-\let\tocsubsection\tocsection
-\def\l@subsubsection{\@tocline{3}{0pt}{1pc}{7pc}{}}
-\let\tocsubsubsection\tocsection
-\let\l@paragraph\l@subsubsection
-\let\tocparagraph\tocsection
-\let\l@subparagraph\l@subsubsection
-\let\tocsubparagraph\tocsection
-%
-\def\l@part{\@tocline{-1}{12pt plus2pt}{0pt}{}{\bfseries}}
-\let\tocpart\tocsection
-\def\l@chapter{\@tocline{0}{8pt plus1pt}{0pt}{}{}}
-\let\tocchapter\tocsection
-%    \end{macrocode}
-%    In this case we are pretty sure the word "Appendix" or similar is
-%    present, so only check if arg 2 is empty:
-%    \begin{macrocode}
-\newcommand{\tocappendix}[3]{%
-  \indentlabel{#1\@ifnotempty{#2}{ #2}.\quad}#3}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\l@figure{\@tocline{0}{3pt plus2pt}{0pt}{1.5pc}{}}
-\let\l@table=\l@figure
-%    \end{macrocode}
-%
-%  \subsection{Bibliography section or chapter}
-%
-%    Following the \pkg{babel} package, we use \cn{refname} in articles
-%    and \cn{bibname} in books.
-%    \begin{macrocode}
-\def\refname{References}
-\def\bibname{Bibliography}
-%    \end{macrocode}
-%
-%    Restudy the following code; \cs{bibsetup} isn't used anywhere
-%    although it's defined for the three different bibstyles.
-%    Because some publications have different default label styles,
-%    separate that out for easy tailoring of packages.
-%    \begin{macrocode}
-\def\@defaultbiblabelstyle#1{#1.}
-\def\bibliographystyle#1{%
-    \if@filesw\immediate\write\@auxout{\string\bibstyle{#1}}\fi
-    \def\@tempa{#1}%
-    \def\@tempb{amsplain}%
-    \def\@tempc{}%
-    \ifx\@tempa\@tempb
-        \def\@biblabel##1{\@defaultbiblabelstyle{##1}}%
-        \def\bibsetup{}%
-    \else
-        \def\bibsetup{\labelsep6\p@}%
-        \ifx\@tempa\@tempc
-            \def\@biblabel##1{}%
-            \def\bibsetup{\labelwidth\z@ \leftmargin24\p@
-                \itemindent-\leftmargin
-                \labelsep\z@ }%
-        \fi
-    \fi}
-%    \end{macrocode}
-%
-%    Permit easy change of font size for unusual purpose, e.g., for
-%    an author's ``life list'' in collected works.  [bnb, 2004/04/01]
-%    \begin{macrocode}
-\newcommand{\bibliofont}{\footnotesize}
-%    \end{macrocode}
-%
-%    \env{thebibliography} differs in some author packages only in the
-%    shape of the title; make this easy to change.  [bnb, 2004/05/22]
-%    \begin{macrocode}
-\newcommand{\@bibtitlestyle}{%
-%<amsart|amsproc>  \@xp\section\@xp*\@xp{\refname}%
-%<amsbook>  \@xp\chapter\@xp*\@xp{\bibname}%
-}
-\newenvironment{thebibliography}[1]{%
-  \@bibtitlestyle
-  \normalfont\bibliofont\labelsep .5em\relax
-  \renewcommand\theenumiv{\arabic{enumiv}}\let\p@enumiv\@empty
-  \list{\@biblabel{\theenumiv}}{\settowidth\labelwidth{\@biblabel{#1}}%
-    \leftmargin\labelwidth \advance\leftmargin\labelsep
-    \usecounter{enumiv}}%
-  \sloppy \clubpenalty\@M \widowpenalty\clubpenalty
-  \sfcode`\.=\@m
-}{%
-%    \end{macrocode}
-%    Change error for empty list (no items) to warning, to allow authors
-%    to leave their bibliography temporarily empty during writing:
-%    \begin{macrocode}
-  \def\@noitemerr{\@latex@warning{Empty `thebibliography' environment}}%
-  \endlist
-}
-%    \end{macrocode}
-%
-%    The \cn{bysame} command prints a horizontal dash indicating
-%    repetition of the author's name in consecutive bibliography
-%    entries.
-%    \begin{macrocode}
-\def\bysame{\leavevmode\hbox to3em{\hrulefill}\thinspace}
-%    \end{macrocode}
-%    We define \cn{newblock} even though it's not needed for AMS
-%    publication style, just to avoid error messages when a non-AMS
-%    \fn{.bst} file is used. This is a convenience for users; use of
-%    \cn{newblock} is not recommended for submissions to the AMS.
-%    \begin{macrocode}
-\def\newblock{}
-%    \end{macrocode}
-%
-%  \begin{macro}{\MR}
-%  \begin{macro}{\MRhref}
-%    Provide an MR number for a bibliography item. At the moment
-%    [mjd,1995/08/07] this only prints the MR number, but later
-%    we expect to extend it to write an HTML \cs{special} to the
-%    \fn{.dvi} file.
-%
-%    The presentation of the MR number has been simplified (from using
-%    a bold volume number) coincident with the change in the MathSciNet
-%    database to a 7-digit reference number from the volume:number form.
-%
-%    Ensure that an old-style MR number does not break across lines if
-%    it contains a space; editorial request.  [bnb; 2004/04/01]
-%    Countermanded, to permit break between reference number and an
-%    old-style number following in parentheses.  [bnb; 2004/06/11]
-%    \begin{macrocode}
-\newcommand\MR[1]{\relax\ifhmode\unskip\spacefactor3000 \space\fi
-  MR~\MRhref{#1}{#1}}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\let\MRhref\@gobble
-%    \end{macrocode}
-%  \end{macro}
-%  \end{macro}
-%
-%  \begin{macro}{\URL}
-%  \begin{macro}{\URLhref}
-%  \begin{macro}{\@URL}
-%    Allows sticking in an arbitrary URL in a bibliography. Leading
-%    ``http'' is not assumed. Call \cn{verb} to ensure that special
-%    characters in the URL don't cause trouble.
-%    \begin{macrocode}
-\newcommand\URL{\begingroup
-  \def\@sverb##1{%
-    \def\@tempa####1##1{\@URL{####1}\egroup\endgroup}%
-    \@tempa}%
-  \verb}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\let\URLhref\@gobble
-\def\@URL#1{\URLhref{#1}#1}
-%    \end{macrocode}
-%  \end{macro}
-%  \end{macro}
-%  \end{macro}
-%
-%  \subsection{Index section or chapter}
-%
-%    Chapter or section heading for an index. Index is set up to be two
-%    columns.
-%    \begin{macrocode}
-\newif\if@restonecol
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-%<*amsbook>
-\def\indexchap#1{\global\topskip 7.5pc\relax
-  \twocolumn[{\fontsize{\@xivpt}{18}\bfseries\centering
-    \vskip\topskip\hbox{}\vskip-\baselineskip% adjust top space
-    #1\par
-%    \end{macrocode}
-%    After \cs{twocolumn} finishes operating, the top material is left in an
-%    insert register, and topskip will now be applied above the
-%    following material. So we should set it to the normal
-%    after-chapter-title space (34pt)---cf.~\cs{@makeschapterhead}.
-%    \begin{macrocode}
-   \global\topskip 34\p@\relax
-   \ifx\@empty\indexintro
-   \else
-     \begingroup \normalsize
-       \skip@\topskip \advance\skip@ -\baselineskip
-       \vskip\skip@
-       \parbox[t]{24pc}{\normalfont\indexintro\par}%
-     \endgroup
-     \global\topskip 24\p@\relax
-   \fi
-  }]%
-}
-\newcommand{\indexintro}{}
-%</amsbook>
-%    \end{macrocode}
-%
-%    \env{theindex} differs in some author packages only in the
-%    shape of the title; make this easy to change.  [bnb, 2004/05/22]
-%    \begin{macrocode}
-\newcommand{\@indextitlestyle}{%
-%<*amsbook>
-  \let\@makeschapterhead\indexchap
-  \@xp\chapter\@xp*\@xp{\indexname}%
-%</amsbook>
-%<amsart|amsproc>  \twocolumn[\@xp\section\@xp*\@xp{\indexname}]%
-}
-\def\theindex{\@restonecoltrue\if@twocolumn\@restonecolfalse\fi
-  \columnseprule\z@ \columnsep 35\p@
-  \@indextitlestyle
-  \thispagestyle{plain}%
-  \let\item\@idxitem
-  \parindent\z@  \parskip\z@\@plus.3\p@\relax
-  \raggedright
-  \hyphenpenalty\@M
-  \footnotesize}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\indexname{Index}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\@idxitem{\par\hangindent 2em}
-\def\subitem{\par\hangindent 2em\hspace*{1em}}
-\def\subsubitem{\par\hangindent 3em\hspace*{2em}}
-\def\endtheindex{\if@restonecol\onecolumn\else\clearpage\fi}
-\def\indexspace{\par\bigskip}
-%    \end{macrocode}
-%
-%  \subsection{Footnotes}
-%    In books the footnote counter should reset to 0 at the beginning of
-%    each chapter:
-%    \begin{macrocode}
-%<amsbook>\@addtoreset{footnote}{chapter}
-%    \end{macrocode}
-%
-%    Rule above footnotes is 5 picas wide.
-%    \begin{macrocode}
-\def\footnoterule{\kern-.4\p@
-        \hrule\@width 5pc\kern11\p@\kern-\footnotesep}
-%    \end{macrocode}
-%
-%    A simple superscript doesn't work here; it fails on a minipage,
-%    where \cs{itshape} (which is invalid in math mode) is used for the
-%    footnote numbers. Cf.~ the definition of \cn{textprime}.
-%    \begin{macrocode}
-\def\@makefnmark{%
-  \leavevmode
-  \raise.9ex\hbox{\fontsize\sf@size\z@\normalfont\@thefnmark}%
-}
-%
-\def\@makefntext{\indent\@makefnmark}
-%    \end{macrocode}
-%    Add \cn{normalfont} before \cn{footnotesize} so that
-%    fonts will come out properly using the new font selection scheme.
-%    \begin{macrocode}
-\long\def\@footnotetext#1{%
-  \insert\footins{%
-    \normalfont\footnotesize
-    \interlinepenalty\interfootnotelinepenalty
-    \splittopskip\footnotesep \splitmaxdepth \dp\strutbox
-    \floatingpenalty\@MM \hsize\columnwidth
-%    \end{macrocode}
-%    Mostly \cs{@parboxrestore} does what we want; but not with
-%    respect to \cs{parindent} and \cs{tolerance}.
-%    \begin{macrocode}
-    \@parboxrestore \parindent\normalparindent \sloppy
-    \protected@edef\@currentlabel{%
-      \csname p@footnote\endcsname\@thefnmark}%
-    \@makefntext{%
-      \rule\z@\footnotesep\ignorespaces#1\unskip\strut\par}}}
-%    \end{macrocode}
-%    We change \cn{sloppy} to keep it from overriding our normal value of
-%    1pt for \cs{hfuzz} and \cs{vfuzz} with a LESS sloppy value (.5pt).
-%    \begin{macrocode}
-\hfuzz=1pt \vfuzz=\hfuzz
-\def\sloppy{\tolerance9999 \emergencystretch 3em\relax}
-%    \end{macrocode}
-%
-%  \subsection{Float placement parameters}
-%    These control the placing of floating objects like tables and
-%    figures. We use much more tolerant values than the \latex/ defaults;
-%    the \latex/ defaults are geared to fussier page breaks, at a price of
-%    requiring more manual intervention to deal with difficult page
-%    breaking problems.
-%
-%    When using \latex/'s twocolumn option, `page' really means `column',
-%    for the parameters that don't have a dbl prefix: that is, topnumber
-%    is then the maximum number of top figures allowed in each column,
-%    and so forth.
-% \begin{description}
-% \item[topnumber] maximum number of top figures allowed per page
-% \item[bottomnumber] maximum number of bottom figures allowed per page
-% \item[totalnumber] maximum number of figures (top and bottom) allowed
-%    per page
-% \item[dbltopnumber] same as topnumber, but for two-column wide
-%    figures, when double-column format is used
-% \end{description}
-%    \begin{macrocode}
-\setcounter{topnumber}{4}
-\setcounter{bottomnumber}{4}
-\setcounter{totalnumber}{4}
-\setcounter{dbltopnumber}{4}
-%    \end{macrocode}
-%    Float fraction parameters.
-% \begin{description}
-% \item[\cs{topfraction}] maximum part of the page allowed for top
-%    figures, expressed as a decimal fraction. The value of .97 means
-%    roughly `accept pages that have only two lines of text, and the
-%    rest figures'.
-% \item[\cs{bottomfraction}] same as \cs{topfraction}, but for bottom
-%    figures
-% \item[\cs{textfraction}] \emph{minimum} part of the page that must be
-%    occupied by text, if the page is to have any text at all. If this
-%    value cannot be achieved, \latex/ will turn the current figure or
-%    figures into a ``float page'', i.e., a page of figures without any
-%    text.
-% \item[\cs{floatpagefraction}] minimum amount (that is, total combined
-%    height) of figures needed before \latex/ will make a float page. This
-%    is expressed as a fraction of the normal page height.
-% \item[\cs{dbltopfraction}] like \cs{topfraction}, but applies only to
-%    figures that are two columns wide, when double-column format is
-%    used.
-% \item[\cs{dblfloatpagefraction}] minimum amount of double-column
-%    figure material needed before \latex/ will make a two-column wide
-%    ``float page''
-% \end{description}
-%    \begin{macrocode}
-\renewcommand{\topfraction}{.97}
-\renewcommand{\bottomfraction}{.97}
-\renewcommand{\textfraction}{.03}
-\renewcommand{\floatpagefraction}{.9}
-\renewcommand{\dbltopfraction}{.97}
-\renewcommand{\dblfloatpagefraction}{.9}
-%    \end{macrocode}
-%
-%    We also modify the default values for spacing around floating
-%    figures: (A) so that figures on a float page will not be
-%    vertically centered on the total page height but will
-%    be flush at the top of the page, and (B) so that there will
-%    be slightly more stretchability around figures, to help find better
-%    page breaks in difficult situations.
-%
-% \begin{description}
-% \item[\cs{floatsep}] Space between consecutive figures
-% \item[\cs{textfloatsep}] Space between text and top or bottom figures
-% \item[\cs{intextsep}] Space above and below a figure in the middle of
-%    the text (i.e., placed with the |[h]| option)
-% \item[\cs{dblfloatsep}] Space between consecutive figures that are
-%    two columns wide (when two-column format is used)
-% \item[\cs{dbltextfloatsep}] Space between double-column figures and text
-% \item[\cs{@fptop}] Space above the first figure on a float page
-% \item[\cs{@fpsep}] Space between figures on a float page
-% \item[\cs{@fpbot}] Space below the last figure on a float page
-% \item[\cs{@dblfptop}] Space above the first double-column figure on a
-%    two-column wide float page
-% \item[\cs{@dblfptop}] Space between double-column figures on a  two-column
-%    wide float page
-% \item[\cs{@dblfptop}] Space below the last double-column figure on a
-%    two-column wide float page
-% \end{description}
-%    \begin{macrocode}
-\setlength{\floatsep}{12pt plus 6pt minus 4pt}
-\setlength{\textfloatsep}{15pt plus 8pt minus 5pt}
-\setlength{\intextsep}{12pt plus 6pt minus 4pt}
-\setlength{\dblfloatsep}{12pt plus 6pt minus 4pt}
-\setlength{\dbltextfloatsep}{15pt plus 8pt minus 5pt}
-\setlength{\@fptop}{0pt}% removed "plus 1fil"
-\setlength{\@fpsep}{8pt}% removed "plus 2fil"
-\setlength{\@fpbot}{0pt plus 1fil}
-\setlength{\@dblfptop}{0pt}% removed "plus 1fil"
-\setlength{\@dblfpsep}{8pt}% removed "plus 2fil"
-\setlength{\@dblfpbot}{0pt plus 1fil}
-%    \end{macrocode}
-%
-%    \cs{fps@figure}, \cs{fps@table}: placement specifications for
-%    \env{figure} and \env{table} environments. `|tbp|' means that a
-%    figure will be placed at the top or bottom of a page, or on a
-%    separate page with no text. This might be changed to `|tp|', for
-%    example, if you never want figures to appear at the bottom of a
-%    page.
-%    \begin{macrocode}
-\newcommand{\fps@figure}{tbp}
-\newcommand{\fps@table}{tbp}
-%    \end{macrocode}
-%
-%    Some more setup for figures.
-%    \begin{macrocode}
-%<amsart|amsproc>\newcounter{figure}
-%<amsbook>\newcounter{figure}[chapter]
-\def\@captionheadfont{\scshape}
-\def\@captionfont{\normalfont}
-\def\ftype@figure{1}
-\def\ext@figure{lof}
-\def\fnum@figure{\figurename\ \thefigure}
-\def\figurename{Figure}
-\newenvironment{figure}{%
-  \@float{figure}%
-}{%
-  \end@float
-}
-\newenvironment{figure*}{%
-  \@dblfloat{figure}%
-}{%
-  \end@dblfloat
-}
-%    \end{macrocode}
-%    And similar for tables.
-%    \begin{macrocode}
-%<amsart|amsproc>\newcounter{table}
-%<amsbook>\newcounter{table}[chapter]
-\def\ftype@table{2}
-\def\ext@table{lot}
-\def\fnum@table{\tablename\ \thetable}
-\def\tablename{Table}
-\newenvironment{table}{%
-  \@float{table}%
-}{%
-  \end@float
-}
-\newenvironment{table*}{%
-  \@dblfloat{table}%
-}{%
-  \end@dblfloat
-}
-%    \end{macrocode}
-%
-%    Change \cs{@floatboxreset} to add \cn{centering}. Centering is
-%    always applied to tables and figures in AMS publications. It should
-%    not be necessary to throw in |\begin{center}| \ldots |\end{center}|
-%    in every instance to achieve this.
-%    \begin{macrocode}
-\def\@floatboxreset{\global\@minipagefalse \centering}
-%    \end{macrocode}
-%
-%    This is what we want \cs{@makecaption} to do: If the total width is
-%    greater than normal columnwidth we want to break the caption into
-%    lines using a line width of $W$ = (columnwidth $-$ 6pc), and center
-%    the resulting block between the margins. Otherwise we want to set
-%    the caption as a single line, centered between the margins.
-%
-%    To do this we set the caption as a vbox with line width $W$,
-%    except that we allow the last line (which may be the only line) to
-%    have width up to full columnwidth by adding a kern of -6pc. If the
-%    result is a single hbox (i.e., a single line) we need to unpack the
-%    hbox, remove rightskip, parfillskip, and the -6pc kern, and center
-%    the remaining material. If the caption is more than one line, then
-%    box 1 contains the last line, which we need to unpack in the same
-%    way, and run through the paragraphing process again (because this
-%    last line may be up to 6 picas wider than the desired width).
-%
-%    In practice this procedure tends to fail if there are any potential
-%    breakpoints near the end of the first line (in the window between
-%    short-width and full-width). Then \TeX{} tends to choose a break
-%    (depending on spaceskip, tolerance, etc) at the last acceptable
-%    breakpoint before short-width is exceeded, \emph{without
-%    considering any later material}---in particular, the negative kern.
-%    [This was pointed out by Donald Arseneau, May 2000.] Unfortunately,
-%    setting parfillskip to a negative value does not work either. I
-%    guess this is a special case of the existing limitation on
-%    parshape: you cannot specify a parshape in terms of number of lines
-%    from the bottom of the paragraph. (We would like to specify a
-%    parshape where the last line is 6 picas longer than the others.)
-%
-%    Finally, if the caption is for a figure, it will be set below the
-%    figure, so the separating space goes above the caption;  otherwise
-%    the separating space goes below the caption.
-%    \begin{macrocode}
-\long\def\@makecaption#1#2{%
-%    \end{macrocode}
-%    Measure the contents of the caption.  If \arg{2} is not
-%    empty, then we must add a period and an en-space before
-%    typesetting it.  The \cs{@caption} macro adds an extra
-%    \cn{ignorespaces} at the beginning of \arg{2}, so in order
-%    to find out if the user-typed portion is empty we use
-%    \cs{@cdr} to pull off the \cn{ignorespaces}.
-%    \begin{macrocode}
-%    Use color-safe commands
-  \setbox\@tempboxa\vbox{\color@setgroup
-    \advance\hsize-2\captionindent\noindent
-    \@captionfont\@captionheadfont#1\@xp\@ifnotempty\@xp
-        {\@cdr#2\@nil}{.\@captionfont\upshape\enspace#2}%
-    \unskip\kern-2\captionindent\par
-    \global\setbox\@ne\lastbox\color@endgroup}%
-  \ifhbox\@ne % the normal case
-    \setbox\@ne\hbox{\unhbox\@ne\unskip\unskip\unpenalty\unkern}%
-  \fi
-%    \end{macrocode}
-%    If \cs{@tempboxa} is not empty at this point then the caption was
-%    more than one line long or there was extra vertical mode material,
-%    maybe a \cs{write} (from \cn{index} or something).
-%    Interestingly, we can't use \cs{ifvoid} to see if
-%    \cs{@tempboxa} is empty, because empty is not the same thing
-%    as void (as far as the \cs{ifvoid} test is concerned).  So
-%    instead we measure the width of \cs{@tempboxa}
-%    to see if it's zero; this should suffice for non-bizarre cases.
-%    \begin{macrocode}
-  \ifdim\wd\@tempboxa=\z@ % this means caption will fit on one line
-    \setbox\@ne\hbox to\columnwidth{\hss\kern-2\captionindent\box\@ne\hss}%
-  \else % tempboxa contained more than one line
-    \setbox\@ne\vbox{\unvbox\@tempboxa\parskip\z@skip
-        \noindent\unhbox\@ne\advance\hsize-2\captionindent\par}%
-  \fi
-  \ifnum\@tempcnta<64 % if the float IS a figure...
-    \addvspace\abovecaptionskip
-    \hbox to\hsize{\kern\captionindent\box\@ne\hss}%
-  \else % if the float IS NOT a figure...
-    \hbox to\hsize{\kern\captionindent\box\@ne\hss}%
-    \nobreak
-    \vskip\belowcaptionskip
-  \fi
-\relax
-}
-%    \end{macrocode}
-%    Allocate the skip registers for above and below caption space.
-%    \begin{macrocode}
-\newskip\abovecaptionskip \abovecaptionskip=12pt \relax
-\newskip\belowcaptionskip \belowcaptionskip=12pt \relax
-\newdimen\captionindent \captionindent=3pc
-%    \end{macrocode}
-%
-%  \subsection{Miscellaneous}
-%
-%  \begin{macro}{\nonbreakingspace}
-%    Change \qc{\~} to be more forgiving of accidental adjacent spaces.
-%    Note that this means multiple |~~~...| cannot be used to get
-%    multiple spaces in the output.
-%    \begin{macrocode}
-\def\nonbreakingspace{\unskip\nobreak\ \ignorespaces}
-\def~{\protect\nonbreakingspace}
-%    \end{macrocode}
-%  \end{macro}
-%
-%    Redefine \cs{@biblabel} to do nothing if the argument is empty. We
-%    don't really care what the previous definition was so we don't
-%    check it.
-%    \begin{macrocode}
-\def\@biblabel#1{\@ifnotempty{#1}{[#1]}}
-%    \end{macrocode}
-%    Changed \cs{@cite} to always use roman/upright, nonbold font, even
-%    in italic or bold text (following AMS style).
-%    Turn off \cs{mathsurround} just in case there are subscripts in the
-%    cite numbers.
-%    \begin{macrocode}
-\def\@citestyle{\m@th\upshape\mdseries}
-%<amsart>\let\citeform\@firstofone
-%<amsbook|amsproc>\def\citeform#1{{\bfseries#1}}
-\def\@cite#1#2{{%
-  \@citestyle[\citeform{#1}\if@tempswa, #2\fi]}}
-%    \end{macrocode}
-%
-%    Make \cn{cite} robust if it isn't already. Too many unsuspecting
-%    users get problems from this in a figure or table caption.
-%    \begin{macrocode}
-\@ifundefined{cite }{%
-  \expandafter\let\csname cite \endcsname\cite
-  \edef\cite{\@nx\protect\@xp\@nx\csname cite \endcsname}%
-}{}
-%    \end{macrocode}
-%
-%  \begin{macro}{\fullwidthdisplay}
-%    The function \cs{fullwidthdisplay} makes a displayed equation take
-%    up the full column width even if the current context is an indented
-%    list.
-%    \begin{macrocode}
-\def\fullwidthdisplay{\displayindent\z@ \displaywidth\columnwidth}
-%    \end{macrocode}
-%    And we insert the \cs{fullwidthdisplay} function at the beginning of
-%    \cs{everydisplay} just in case any later code in \cs{everydisplay}
-%    needs to use the values of \cs{displayindent} or \cs{displaywidth}.
-%    \begin{macrocode}
-\edef\@tempa{\noexpand\fullwidthdisplay\the\everydisplay}
-\everydisplay\expandafter{\@tempa}
-%    \end{macrocode}
-%  \end{macro}
-%
-%    A few odds and ends for indexes, based on \pkg{makeindex}.  The
-%    definition of \cn{see} as ``see also'' is unfortunate, but of
-%    long standing, and cannot be changed without destroying backward
-%    compatibility, so an alternate command, \cn{seeonly}, is provided
-%    to cover the basic situation.
-%    \begin{macrocode}
-\newcommand*\seeonlyname{see}
-\newcommand*\seename{see also}
-\newcommand*\alsoname{see also}
-\newcommand*\seeonly[2]{\emph{\seeonlyname} #1}
-\newcommand*\see[2]{\emph{\seename} #1}
-\newcommand*\seealso[2]{\emph{\alsoname} #1}
-\newcommand\printindex{\@input{\jobname.ind}}
-%    \end{macrocode}
-%
-%  \begin{macro}{\textprime}
-%    A text prime symbol, for applying primes to numbers such as list
-%    numbers or equation numbers that are not really math. Furthermore
-%    Cyrillic myagkii znak, or soft sign, is represented by a prime
-%    symbol in Russian names when they are transliterated into English.
-%
-%    \cn{textprime} uses the prime symbol from math, but because it's
-%    intended specifically for nonmath use, we avoid going through math
-%    mode with \verb'$...$'. We must therefore call \cs{check@mathfonts}
-%    to ensure that \verb'scriptfont2' is actually defined. Otherwise,
-%    if \cn{textprime} were used in a document before the first math
-%    formula, there would be no adequate assignment yet for
-%    \verb'\scriptfont2'.
-%
-%    The raise value of \verb'.8ex' is just a reasonable guess at making
-%    the bottom of the prime symbol fall near the top of a preceding
-%    lowercase letter but still not fall too low on an uppercase letter.
-%    We could look up the \cs{fontdimen} values used in math mode for
-%    superscripts but I don't think it's worth the bother.
-%
-%    Cf.~also the definition of \cs{@makefnmark}. The prime symbol here
-%    is not raised quite so high because I think that is desirable for
-%    the soft-sign usage.
-%    \begin{macrocode}
-\DeclareRobustCommand\textprime{\leavevmode
-  \raise.8ex\hbox{\check@mathfonts\the\scriptfont2 \char48 }}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \subsection{Book style variations}
-%    Here is the layout for a \cn{maketitle} in the \cls{amsbook} class.
-%    \begin{macrocode}
-%<*amsbook>
-\def\maketitle{\par
-  \@topnum\z@ % this prevents figures from falling at the top of page 1
-  \begingroup
-  \@maketitle
-  \endgroup
-  \c@footnote\z@
-  \def\do##1{\let##1\relax}%
-  \do\maketitle \do\@maketitle \do\title \do\@xtitle \do\@title
-  \do\author \do\@xauthor \do\address \do\@xaddress
-  \do\email \do\@xemail \do\curraddr \do\@xcurraddr
-  \do\dedicatory \do\@dedicatory \do\thanks \do\thankses
-  \do\keywords \do\@keywords \do\subjclass \do\@subjclass
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\@maketitle{%
-  \cleardoublepage \thispagestyle{empty}%
-  \begingroup \topskip\z@skip
-  \null\vfil
-  \begingroup
-  \LARGE\bfseries \centering
-  \openup\medskipamount
-  \@title\par\vspace{24pt}%
-  \def\and{\par\medskip}\centering
-  \mdseries\authors\par\bigskip
-  \endgroup
-  \vfil
-  \ifx\@empty\addresses \else \@setaddresses \fi
-  \vfil
-  \ifx\@empty\@dedicatory
-  \else \begingroup
-    \centering{\footnotesize\itshape\@dedicatory\@@par}%
-    \endgroup
-  \fi
-  \vfill
-  \newpage\thispagestyle{empty}
-  \begin{center}
-    \ifx\@empty\@subjclass\else\@setsubjclass\fi
-    \ifx\@empty\@keywords\else\@setkeywords\fi
-    \ifx\@empty\@translators\else\vfil\@settranslators\fi
-    \ifx\@empty\thankses\else\vfil\@setthanks\fi
-  \end{center}
-  \vfil
-  \@setabstract
-  \endgroup}
-%    \end{macrocode}
-%
-%    Define the desired form for translator names.
-%    \begin{macrocode}
-\def\@settranslators{\par
-  \begingroup
-  \translname: \andify\@translators \uppercasenonmath\@translators
-  \@translators \@@par
-  \endgroup}
-\def\@setdate{\par\smallskip\@date\par\smallskip}
-\def\@setsubjclass{\par\smallskip
-  {\itshape\subjclassname.}\enspace\@subjclass\par\smallskip}
-\def\@setkeywords{\par\smallskip
-  {\itshape \keywordsname.}\enspace \@keywords\par\smallskip}
-%</amsbook>
-%</classes>
-%    \end{macrocode}
-%
-%  \subsection{Setup for theorems, definitions, remarks, proofs}
-%  \subsubsection{Intended usage}
-%
-%    Here are some examples showing the kinds of theorem environment
-%    declarations that are possible.
-%\begin{verbatim}
-% \newtheorem{prop}{Proposition}
-% \newtheorem{thm}{Theorem}[section]
-% \newtheorem{lem}[thm]{Lemma}
-% \newtheorem*{Zorn}{Zorn's Lemma}
-%
-% \theoremstyle{definition}
-% \newtheorem{dfn}{Definition}
-%
-% \theoremstyle{remark}
-% \newtheorem*{rmk}{Remark}
-%\end{verbatim}
-%
-%    The first four statements all define environments using the default
-%    theorem style (`plain'), since there is no prefatory
-%    \cn{theoremstyle} declaration. The first statement defines an
-%    automatically numbered \env{prop} environment whose headings will
-%    look like this: Proposition 1, Proposition 2, and so forth. The
-%    second statement defines an environment \env{thm} with numbers
-%    subordinate to section numbers, so the headings will look like
-%    this: Theorem 1.1, Theorem 1.2, Theorem 1.3, \dots, (in section 2:)
-%    Theorem 2.1, Theorem 2.2, and so forth. The third statement defines
-%    a \env{lem} environment whose numbers will interleave in sequence
-%    with the theorem numbers: Theorem 1.3, Lemma 1.4, Lemma 1.5,
-%    Theorem 1.6, and so forth. The fourth statement defines a special
-%    unnumbered lemma named `Zorn's Lemma'. The remaining two
-%    \cn{newtheorem} statements have no special features except for the
-%    \cn{theoremstyle} declarations that cause the \env{dfn} and
-%    \env{rmk} environments to have some differences in appearance.
-%
-%    There are three basic styles provided: The `plain' style produces
-%    bold headings and italic body text; the `definition' style produces
-%    bold headings and normal body text; the `remark' style produces
-%    italic headings and normal body text.
-%
-%    A \cn{swapnumbers} command allows theorem numbers to be swapped to
-%    the front of the theorem headings. Putting \cn{swapnumbers} in your
-%    document preamble will cause \emph{all following} \cn{newtheorem}
-%    statements to produce number-first headings. (To provide maximum
-%    control, \cn{swapnumbers} is designed so that it can be used more
-%    than once; each time it is used, theorem numbers will be swapped to
-%    the opposite side for all following \cn{newtheorem} statements. But
-%    rarely will it need to be invoked more than once per document.)
-%
-% \subsubsection{Custom theorem styles}
-%    There is a \cn{newtheoremstyle} command provided to make the
-%    creation of custom theoremstyles fairly easy.
-%
-%    Usage:
-%\begin{verbatim}
-%                   #1
-% \newtheoremstyle{NAME}%
-%     #2          #3          #4
-%   {ABOVESPACE}{BELOWSPACE}{BODYFONT}%
-%     #5      #6        #7         #8
-%   {INDENT}{HEADFONT}{HEADPUNCT}{HEADSPACE}%
-%     #9
-%   {CUSTOM-HEAD-SPEC}
-%\end{verbatim}
-%    Leaving the `indent' argument empty is equivalent to entering
-%    |0pt|. The `headpunct' and `headspace' arguments are for the
-%    punctuation and horizontal space between the theorem head and the
-%    following text. There are two special values that may be used for
-%    `headspace': a single space means that a normal interword space
-%    should be used; ``\cn{newline}'' means that there should be a line
-%    break after the head instead of horizontal space. The
-%    `custom-head-spec' argument follows a special convention: it is
-%    interpreted as the replacement text for an internal three-argument
-%    function \cn{thmhead}, i.e., as if you were defining
-%\begin{verbatim}
-% \renewcommand{\thmhead}[3]{...#1...#2...#3...}
-%\end{verbatim}
-%    but omitting the initial |\renewcommand{\thmhead}[3]|. The three
-%    arguments that will be supplied to \cn{thmhead} are the name,
-%    number, and optional note components. Within the replacement text
-%    you can (and normally will want to) use other special functions
-%    \cn{thmname}, \cn{thmnumber}, and \cn{thmnote}. These will print
-%    their argument if and only if the corresponding argument of
-%    \cn{thmhead} is nonempty. For example
-%\begin{verbatim}
-% {\thmname{#1}\thmnumber{ #2}\thmnote{ (#3)}}
-%\end{verbatim}
-%    This would cause the theorem note \arg{3} to be printed with a
-%    preceding space and enclosing parentheses, if it is present, and if
-%    it is absent, the space and parentheses will be omitted because
-%    they are inside the argument of \cn{thmnote}.
-%
-%    Finally, if you have an extra bit of arbitrary code that you want
-%    to slip in somewhere, the best place to do it is in the `body font'
-%    argument.
-%
-%    The \cn{newtheoremstyle} command is designed to provide, through a
-%    relatively simple interface, control over the style aspects that
-%    are most commonly changed. More complex requirements must be
-%    addressed through a separate \latex/ package.
-%
-%    When you set up custom theorem styles with \cn{newtheoremstyle} you
-%    should not use \cn{swapnumbers}. You have full control of the
-%    ordering of elements in the theorem head, just place them where you
-%    want. Or, if you do use \cn{swapnumbers}, you must look at the
-%    definition of \cs{swappedhead} and change it appropriately.
-
-% \subsubsection{Implementation}
-%    The \cn{theoremstyle} command is very simple except for the need to
-%    warn about an unknown theoremstyle.
-%    \begin{macrocode}
-%<*amsthm|classes>
-\newcommand{\theoremstyle}[1]{%
-  \@ifundefined{th@#1}{%
-    \PackageWarning{amsthm}{Unknown theoremstyle `#1'}%
-    \thm@style{plain}%
-  }{%
-    \thm@style{#1}%
-  }%
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\newtoks\thm@style
-\thm@style{plain}
-%    \end{macrocode}
-%
-%    What's really needed is a full-fledged systematic approach for
-%    specifying the desired order and formatting of the three identified
-%    parts of a theorem head (name, number, note).
-%    \begin{macrocode}
-\newtoks\thm@bodyfont  \thm@bodyfont{\itshape}
-\newtoks\thm@headfont  \thm@headfont{\bfseries}
-\newtoks\thm@notefont  \thm@notefont{}
-\newtoks\thm@headpunct \thm@headpunct{.}
-%    \end{macrocode}
-%    Vertical spacing: initialize to current value of \cs{topsep}.
-%    If a document class loads the \pkg{amsthm} package it
-%    should take care to set these variables explicitly, if current
-%    \cs{topsep} is not the desired value.
-%    \begin{macrocode}
-\newskip\thm@preskip \newskip\thm@postskip
-%<*classes>
-\def\thm@space@setup{%
-  \thm@preskip=.5\baselineskip\@plus.2\baselineskip
-                             \@minus.2\baselineskip
-  \thm@postskip=\thm@preskip
-}
-%</classes>
-%<*amsthm>
-\def\thm@space@setup{%
-  \thm@preskip=\topsep \thm@postskip=\thm@preskip
-}
-%</amsthm>
-%    \end{macrocode}
-%    Modify \cn{newtheorem} to add |*| option. If a |*| is found, pass
-%    it on to \cs{@xnthm} as the first argument. (This information
-%    enables us to handle two different possibilities in a single
-%    function \cs{@xnthm} instead of needing two separate functions.)
-%    \begin{macrocode}
-\renewcommand{\newtheorem}{\@ifstar{\@xnthm *}{\@xnthm \relax}}
-%    \end{macrocode}
-%
-%    Check to see if an optional arg is present after the first
-%    mandatory arg (which is \arg{2} at the moment since the |*| or
-%    non-|*| is \arg{1}).
-%    \begin{macrocode}
-\def\@xnthm#1#2{%
-  \let\@tempa\relax
-  \@xp\@ifdefinable\csname #2\endcsname{%
-    \global\@xp\let\csname end#2\endcsname\@endtheorem
-    \ifx *#1% unnumbered, need to get one more mandatory arg
-      \edef\@tempa##1{%
-        \gdef\@xp\@nx\csname#2\endcsname{%
-          \@nx\@thm{\@xp\@nx\csname th@\the\thm@style\endcsname}%
-            {}{##1}}}%
-    \else % numbered theorem, need to check for optional arg
-      \def\@tempa{\@oparg{\@ynthm{#2}}[]}%
-    \fi
-  }%
-  \@tempa
-}
-%    \end{macrocode}
-%
-%    Environment numbered together with a previously defined
-%    environment.
-%
-%    Arg1: env name, e.g. `thm'\par
-%    Arg2: optional sibling counter\par
-%    Arg3: heading text e.g. `Theorem'
-%    \begin{macrocode}
-\def\@ynthm#1[#2]#3{%
-%    \end{macrocode}
-%    If optional arg \arg{2} is empty, call \cs{@xthm} to look for a
-%    possible optional arg in terminal position. Note that
-%    the two optional args are mutually exclusive. As \arg{2} is a
-%    counter name and must be processed by \cs{csname} anyway,
-%    we can use a simpler test instead of \cs{@ifempty}.
-%    \begin{macrocode}
-  \ifx\relax#2\relax
-    \def\@tempa{\@oparg{\@xthm{#1}{#3}}[]}%
-  \else
-    \@ifundefined{c@#2}{%
-      \def\@tempa{\@nocounterr{#2}}%
-    }{%
-      \@xp\xdef\csname the#1\endcsname{\@xp\@nx\csname the#2\endcsname}%
-      \toks@{#3}%
-      \@xp\xdef\csname#1\endcsname{%
-        \@nx\@thm{%
-          \let\@nx\thm@swap
-            \if S\thm@swap\@nx\@firstoftwo\else\@nx\@gobble\fi
-          \@xp\@nx\csname th@\the\thm@style\endcsname}%
-            {#2}{\the\toks@}}%
-      \let\@tempa\relax
-    }%
-  \fi
-  \@tempa
-}
-%    \end{macrocode}
-%
-%    Environment numbered relative to the counter given as \arg{3}. This
-%    function should really be named \cs{@znthm} but we're trying to
-%    save a bit of hash table and string pool by reusing one of the
-%    command names rendered obsolete by the \pkg{amsthm} package.
-%
-%    Arg1: env name e.g. `thm';
-%    Arg2: heading text e.g. `Theorem';
-%    Arg3: parent counter e.g. section.
-%    \begin{macrocode}
-\def\@xthm#1#2[#3]{%
-%    \end{macrocode}
-%    Set up the counter \verb'c@#1' and optionally add it to the reset
-%    list of counter \arg{3}. As \arg{3} is a
-%    counter name and must be processed by \cs{csname} anyway,
-%    we can use a simpler test instead of \cs{@ifempty}.
-%    \begin{macrocode}
-  \ifx\relax#3\relax
-    \newcounter{#1}%
-  \else
-    \newcounter{#1}[#3]%
-%    \end{macrocode}
-%    Define \cn{thexxx} to be \verb'\theyyy.\arabic{xxx}' (assuming
-%    default values of punctuation and numbering style). The use of
-%    \cs{xdef} here is inherited from the old \latex/ code, I'm not
-%    sure it's a good idea in general, but there should not be any
-%    problems unless someone changes the value of \cs{@thmcountersep} or
-%    \cs{@thmcounter}.
-%    \begin{macrocode}
-    \@xp\xdef\csname the#1\endcsname{\@xp\@nx\csname the#3\endcsname
-      \@thmcountersep\@thmcounter{#1}}%
-  \fi
-  \toks@{#2}%
-  \@xp\xdef\csname#1\endcsname{%
-    \@nx\@thm{%
-      \let\@nx\thm@swap
-        \if S\thm@swap\@nx\@firstoftwo\else\@nx\@gobble\fi
-      \@xp\@nx\csname th@\the\thm@style\endcsname}%
-      {#1}{\the\toks@}}%
-}
-%    \end{macrocode}
-%
-%    [mjd,1999/10/13] The following code doesn't handle the case where
-%    an equation is immediately followed by a theorem with no
-%    intervening \cs{par}---then the spacefactor is 1000.
-%    \begin{macrocode}
-% % \def\thm@check@break{%
-% %   \ifhmode \unskip \unskip
-% %     \edef\pre@thm@spacefactor{\the\spacefactor}\par
-% %     \edef\thm@topbreak{%
-% %       \ifnum\pre@thm@spacefactor<\sfcode`\!\relax
-% %          % preceding text line did not end with end-of-sentence punctuation
-% %         \ifnum\prevgraf=\@ne \penalty\widowpenalty
-% %         \else \penalty9999\relax
-% %         \fi
-% %       \else
-% %         \@nx\addpenalty{\@beginparpenalty}%
-% %       \fi
-% %     }%
-% %   \else
-% %     \def\thm@topbreak{\addpenalty\@beginparpenalty}%
-% %   \fi
-% % }
-%    \end{macrocode}
-%
-%    If arg \arg{2} is empty, this is an unnumbered environment;
-%    otherwise \arg{2} is the name of a counter. \arg{3} is descriptive
-%    name such as ``Theorem'' or ``Lemma''. Arg \arg{1} is the style
-%    function, for example \cs{th@plain}.
-%    \begin{macrocode}
-\def\@thm#1#2#3{%
-  \ifhmode\unskip\unskip\par\fi
-  \normalfont
-  \trivlist
-%    \end{macrocode}
-%    Explicitly set plain style here, then override parts as necessary
-%    in the function provided as \arg{1}.
-%    \begin{macrocode}
-  \let\thmheadnl\relax
-  \let\thm@swap\@gobble
-%<amsart>  \let\thm@indent\noindent % no indent
-%<amsart>  \thm@headfont{\bfseries}% heading font bold
-%<amsbook|amsproc>  \let\thm@indent\indent % indent
-%<amsbook|amsproc>  \thm@headfont{\scshape}% heading font small caps
-  \thm@notefont{\fontseries\mddefault\upshape}%
-  \thm@headpunct{.}% add period after heading
-  \thm@headsep 5\p@ plus\p@ minus\p@\relax
-  \thm@space@setup
-  #1% style overrides
-  \@topsep \thm@preskip               % used by thm head
-  \@topsepadd \thm@postskip           % used by \@endparenv
-  \def\@tempa{#2}\ifx\@empty\@tempa
-    \def\@tempa{\@oparg{\@begintheorem{#3}{}}[]}%
-  \else
-    \refstepcounter{#2}%
-    \def\@tempa{\@oparg{\@begintheorem{#3}{\csname the#2\endcsname}}[]}%
-  \fi
-  \@tempa
-}
-%    \end{macrocode}
-%
-%    The internal function \cs{@restorelabelsep} starts out as a no-op.
-%    I don't think this is needed any more [mjd,2000/10/26].
-%    \begin{macrocode}
-\def\@restorelabelsep{\relax}
-%    \end{macrocode}
-%
-%    This variation of the \cs{@thm} command is no longer needed. The
-%    variation \cs{@xthm} was commandeered for \cn{newtheorem} use.
-%    \begin{macrocode}
-\let\@ythm\relax
-%    \end{macrocode}
-%
-%    Init \cn{thmname} etc.
-%    \begin{macrocode}
-\let\thmname\@iden \let\thmnote\@iden \let\thmnumber\@iden
-%    \end{macrocode}
-%
-%  \begin{macro}{\@upn}
-%    The function \cs{\@upn} is used to force theorem numbers and
-%    similar elements to be upright even when the current font is
-%    italic. If a suitable italic font with upright numbers and
-%    punctuation is available, this function should be redefined to be a
-%    no-op.
-%    \begin{macrocode}
-\providecommand\@upn{\textup}
-%    \end{macrocode}
-%  \end{macro}
-%
-%    Definitions for theorem heads.
-%    \begin{macrocode}
-\def\thmhead@plain#1#2#3{%
-%    \end{macrocode}
-%    To allow for the case where the thmname part is empty and the
-%    heading consists only of a number (don't laugh, we have
-%    examples from real mathematical manuscripts), we don't add the
-%    space at the beginning of thmnumber unless \arg{1} is nonempty.
-%    \begin{macrocode}
-  \thmname{#1}\thmnumber{\@ifnotempty{#1}{ }\@upn{#2}}%
-%    \end{macrocode}
-%    In thmnote we always add a leading space, i.e., assuming that
-%    at least one of the preceding parts will always be present.
-%    \begin{macrocode}
-  \thmnote{ {\the\thm@notefont(#3)}}}
-\let\thmhead\thmhead@plain
-%    \end{macrocode}
-%    Swappedhead is for the case where the number precedes the
-%    word "Theorem". When the numbers fall on the left, like section
-%    numbers, AMS journal style calls for them to be lightface. We get
-%    this by invoking \cs{@secnumfont}.
-%
-%    In handling the punctuation after the number we have to step
-%    delicately if we want to successfully handle cases where the
-%    theorem name is empty (this is very rare, yet it sometimes arises
-%    in practice).
-%    \begin{macrocode}
-\def\swappedhead#1#2#3{%
-%<amsthm>  \thmnumber{#2}%
-%<amsthm>  \thmname{\@ifnotempty{#2}{~}#1}%
-%<classes>  \thmnumber{\@upn{\@secnumfont#2\@ifnotempty{#1}{.~}}}%
-%<classes>  \thmname{#1}%
-  \thmnote{ {\the\thm@notefont(#3)}}}
-%    \end{macrocode}
-%
-%    A customized definition of \cs{th@plain} written for version 1.x of
-%    the \pkg{amsthm} package might refer to \cs{swappedhead@plain}; this
-%    gives it a definition for backward compatibility.
-%    \begin{macrocode}
-\let\swappedhead@plain=\swappedhead
-%    \end{macrocode}
-%
-%    In \cs{@begintheorem} \cn{thmheadnl} is called after the theorem
-%    head: maybe a newline, otherwise a no-op.
-%    \begin{macrocode}
-\let\thmheadnl\relax
-\let\thm@indent\noindent
-\let\thm@swap\@gobble
-%    \end{macrocode}
-%
-%    If argument \arg{2} is empty, then this is an unnumbered
-%    environment. Otherwise \arg{2} is a numbering command such as
-%    \cn{thexyz}. We use \cs{deferred@thm@head} instead of \cs{item} in
-%    order to allow line breaking in the optional note argument.
-%    \begin{macrocode}
-\def\@begintheorem#1#2[#3]{%
-  \deferred@thm@head{\the\thm@headfont \thm@indent
-%    \end{macrocode}
-%    Changes to \cs{thmnumber} and \cs{thmnote} are local to the
-%    containing box.
-%    \begin{macrocode}
-    \@ifempty{#1}{\let\thmname\@gobble}{\let\thmname\@iden}%
-    \@ifempty{#2}{\let\thmnumber\@gobble}{\let\thmnumber\@iden}%
-    \@ifempty{#3}{\let\thmnote\@gobble}{\let\thmnote\@iden}%
-%    \end{macrocode}
-%    The \cs{thm@swap} function selects either \cs{swappedhead} or
-%    \cs{thmhead}.
-%    \begin{macrocode}
-    \thm@swap\swappedhead\thmhead{#1}{#2}{#3}%
-%    \end{macrocode}
-%    I can't think of any example where the after-head punctuation
-%    should be omitted so it seems correct not to use \cs{@addpunct}
-%    here.
-%    \begin{macrocode}
-    \the\thm@headpunct
-%    \end{macrocode}
-%    If this \emph{is} a newline (from a \cn{newtheoremstyle}), it
-%    gets lost if there isn't any text following the heading, since
-%    \cs{deferred@thm@head} packs the heading into an hbox with
-%    \cs{sbox}\cs{@labels}.  Attempting to move the \cs{thmheadnl}
-%    outside the scope of \cs{deferred@thm@head} (just outside the
-%    ending brace below) results in no improvement if no text follows
-%    the heading, and where there is text, runs it in.  Inserting a
-%    space following such a heading results in an extra blank line.
-%    [bnb, 2004/06/30]
-%    \begin{macrocode}
-    \thmheadnl % possibly a newline.
-    \hskip\thm@headsep
-  }%
-  \ignorespaces}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\newskip\thm@headsep
-\thm@headsep=5pt plus1pt minus1pt\relax
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\let\adjust@parskip@nobreak=\@nbitem
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\newtoks\dth@everypar
-\dth@everypar={%
-  \@minipagefalse \global\@newlistfalse
-  \@noparitemfalse
-  \if@inlabel
-    \global\@inlabelfalse
-    \begingroup \setbox\z@\lastbox
-     \ifvoid\z@ \kern-\itemindent \fi
-    \endgroup
-    \unhbox\@labels
-  \fi
-  \if@nobreak \@nobreakfalse \clubpenalty\@M
-  \else \clubpenalty\@clubpenalty \everypar{}%
-  \fi
-}%
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\deferred@thm@head#1{%
-  \if@inlabel \indent \par \fi % eject a section head if one is pending
-  \if@nobreak
-%    \end{macrocode}
-%    This case normally arises when a theorem follows immediately after
-%    a section head. Then we leave the below-section-head space instead
-%    of adding above-theorem space; but some adjustment of parskip is
-%    needed.
-%    \begin{macrocode}
-    \adjust@parskip@nobreak
-  \else
-    \addpenalty\@beginparpenalty
-    \addvspace\@topsep
-    \addvspace{-\parskip}%
-  \fi
-  \global\@inlabeltrue
-  \everypar\dth@everypar
-  \sbox\@labels{\normalfont#1}%
-  \ignorespaces
-}
-%    \end{macrocode}
-%
-%  \begin{macro}{\nonslanted}
-%    The \cn{nonslanted} command changes the current font to
-%    \cn{upshape} if it is \cn{itshape} or \cn{slshape}. This is used
-%    for document structure numbers that should be consistently upright
-%    in all contexts.
-%    \begin{macrocode}
-\def\nonslanted{\relax
-%    \end{macrocode}
-%    Can't do a direct \cs{ifx} between \cs{f@shape} and \cs{itdefault}
-%    because the latter is \cs{long} (grumble grumble).
-%    \begin{macrocode}
-  \@xp\let\@xp\@tempa\csname\f@shape shape\endcsname
-  \ifx\@tempa\itshape\upshape
-  \else\ifx\@tempa\slshape\upshape\fi\fi}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{\swapnumbers}
-%    The \cn{swapnumbers} command sets a switch \cs{thm@swap} that is
-%    used by \cn{newtheorem}. To conserve hash table we load
-%    \cs{thm@swap} with two uses; the first one is needed only in
-%    \cn{newtheorem} declarations and the second one is needed only in
-%    typesetting theorem environments.
-%    \begin{macrocode}
-\def\swapnumbers{\edef\thm@swap{\if S\thm@swap N\else S\fi}}
-\def\thm@swap{N}%
-%    \end{macrocode}
-%  \end{macro}
-%
-%    \cs{@opargbegintheorem} not needed, \cs{@oparg} utility serves
-%    instead.
-%    \begin{macrocode}
-\let\@opargbegintheorem\relax
-%    \end{macrocode}
-%
-%    Except for the body font, default values are built into \cs{@thm}.
-%    \begin{macrocode}
-\def\th@plain{%
-%%  \let\thm@indent\noindent % no indent
-%%  \thm@headfont{\bfseries}% heading font is bold
-%%  \thm@notefont{}% same as heading font
-%%  \thm@headpunct{.}% add period after heading
-%%  \let\thm@swap\@gobble
-%%  \thm@preskip\topsep
-%%  \thm@postskip\theorempreskipamount
-  \itshape % body font
-}
-%    \end{macrocode}
-%
-%    Theorem style `definition' is the same as `plain' except for the
-%    body font.
-%    \begin{macrocode}
-\def\th@definition{%
-  \normalfont % body font
-}
-%    \end{macrocode}
-%
-%    Theorem style `remark' differs from `plain' in head font and  body
-%    font. Also smaller spacing above and below for AMS classes only.
-%    \begin{macrocode}
-\def\th@remark{%
-%<amsart|amsthm>  \thm@headfont{\itshape}%
-  \normalfont % body font
-%<*amsthm>
-  \thm@preskip\topsep \divide\thm@preskip\tw@
-  \thm@postskip\thm@preskip
-%</amsthm>
-}
-%    \end{macrocode}
-%
-%    The standard definition of \cs{@endtheorem} is just
-%    \cs{endtrivlist}, but that doesn't automatically start a new
-%    paragraph, so we add \cs{@endpefalse} in order to ensure a new
-%    paragraph.  This differs from the basic \latex/ behavior.
-%    \begin{macrocode}
-\def\@endtheorem{\endtrivlist\@endpefalse }
-%    \end{macrocode}
-%
-%  \begin{macro}{\newtheoremstyle}
-%    An easy way to make a not too complicated variant theorem style.
-%    Usage:
-%\begin{verbatim}
-%                   #1
-% \newtheoremstyle{NAME}%
-%     #2          #3          #4
-%   {ABOVESPACE}{BELOWSPACE}{BODYFONT}%
-%     #5      #6        #7         #8
-%   {INDENT}{HEADFONT}{HEADPUNCT}{HEADSPACE}%
-%     #9
-%   {CUSTOM-HEAD-SPEC}
-%\end{verbatim}
-%    \begin{macrocode}
-\newcommand{\newtheoremstyle}[9]{%
-%    \end{macrocode}
-%    Empty or 0pt for \arg{5} is translated to \cs{noindent}.
-%    \begin{macrocode}
-  \@ifempty{#5}{\dimen@\z@skip}{\dimen@#5\relax}%
-  \ifdim\dimen@=\z@
-%    \end{macrocode}
-%    \arg{4} is body font. Extra code could be included there if
-%    necessary.
-%    \begin{macrocode}
-    \toks@{#4\let\thm@indent\noindent}%
-  \else
-    \toks@{#4\def\thm@indent{\noindent\hbox to#5{}}}%
-  \fi
-%    \end{macrocode}
-%    Arg \arg{8} is a glue spec for the space after the head. As
-%    a proper glue spec for `normal interword space' is rather hard to
-%    write, we recognize an argument of |{ }| as a special case and
-%    translate internally to the necessary fontdimen equivalent.
-%    Furthermore, if \arg{8} consists entirely of \cn{newline}, then we
-%    will perform a line break after the theorem head instead of adding
-%    horizontal space. At the moment [1995/01/23] this is not perfectly
-%    well implemented because of complications with the way \latex/'s
-%    \cn{item} adds a heading to the vertical list; for best results
-%    there should not be anything (not even a blank line) after the
-%    |\begin{xxx}| command.
-%    \begin{macrocode}
-  \def\@tempa{#8}\ifx\space\@tempa
-%    \end{macrocode}
-%    Notice that we disregard stretch and shrink for labelsep =
-%    interwordspace.
-%    \begin{macrocode}
-    \toks@\@xp{\the\toks@ \thm@headsep\fontdimen\tw@\font\relax}%
-  \else
-    \def\@tempb{\newline}%
-    \ifx\@tempb\@tempa
-      \toks@\@xp{\the\toks@ \thm@headsep\z@skip
-        \def\thmheadnl{\newline}}%
-    \else
-      \toks@\@xp{\the\toks@ \thm@headsep#8\relax}%
-    \fi
-  \fi
-  \begingroup
-  \thm@space@setup
-  \@defaultunits\@tempskipa#2\thm@preskip\relax\@nnil
-  \@defaultunits\@tempskipb#3\thm@postskip\relax\@nnil
-  \xdef\@gtempa{\thm@preskip\the\@tempskipa
-    \thm@postskip\the\@tempskipb\relax}%
-  \endgroup
-  \@temptokena\@xp{\@gtempa
-    \thm@headfont{#6}\thm@headpunct{#7}%
-  }%
-  \@ifempty{#9}{%
-    \let\thmhead\thmhead@plain
-  }{%
-    \@namedef{thmhead@#1}##1##2##3{#9}%
-    \@temptokena\@xp{\the\@temptokena
-      \@xp\let\@xp\thmhead\csname thmhead@#1\endcsname}%
-  }%
-  \@xp\xdef\csname th@#1\endcsname{\the\toks@ \the\@temptokena}%
-}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{\qed}
-%    Define \cn{qed} for end of proof. This command might
-%    occur in math mode, in a displayed equation, but it should never
-%    occur in inner math mode in ordinary paragraph text.
-%    \begin{macrocode}
-\DeclareRobustCommand{\qed}{%
-  \ifmmode \mathqed
-  \else
-    \leavevmode\unskip\penalty9999 \hbox{}\nobreak\hfill
-%    \end{macrocode}
-%    The hbox is to prevent a line break within the \cn{qedsymbol} if it
-%    is defined to be something composite--- e.g., things like
-%    \verb"(Corollary 1.2) \openbox" as are occasionally done.
-%    \begin{macrocode}
-    \quad\hbox{\qedsymbol}%
-  \fi
-}
-%    \end{macrocode}
-%  \end{macro}
-%
-%    Setup for QED stack. We use a dedicated iterator macro \cs{qed@elt}
-%    instead of the generic \cs{@elt} because the \latex/ output routine
-%    is not safe against changes in \cs{@elt}. Therefore it is not safe
-%    to use \cs{@elt} for any processing that might trigger the output
-%    routine. Although this does not seem very likely when adding a QED
-%    symbol to a horizontal list, we did in fact get a bug report for
-%    this kind of failure.
-%    \begin{macrocode}
-\let\QED@stack\@empty
-\let\qed@elt\relax
-%    \end{macrocode}
-%
-%    Puts a QED symbol on the stack:
-%    \begin{macrocode}
-\newcommand{\pushQED}[1]{%
-  \toks@{\qed@elt{#1}}\@temptokena\expandafter{\QED@stack}%
-  \xdef\QED@stack{\the\toks@\the\@temptokena}%
-}
-%    \end{macrocode}
-%
-%    Pops the QED stack and prints the result.
-%    \begin{macrocode}
-\newcommand{\popQED}{%
-  \begingroup\let\qed@elt\popQED@elt \QED@stack\relax\relax\endgroup
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\popQED@elt#1#2\relax{#1\gdef\QED@stack{#2}}
-%    \end{macrocode}
-%
-%    Prints the current QED symbol and replaces the top entry on the
-%    stack with a null entry.
-%    \begin{macrocode}
-\newcommand{\qedhere}{%
-  \begingroup \let\mathqed\math@qedhere
-    \let\qed@elt\setQED@elt \QED@stack\relax\relax \endgroup
-}
-%    \end{macrocode}
-%
-%    In case the \pkg{amsmath} or \pkg{amstext} packages are loaded, we
-%    need the following two tests. (Redundantly declaring them is
-%    harmless.)
-%    \begin{macrocode}
-\newif\ifmeasuring@
-\newif\iffirstchoice@ \firstchoice@true
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\setQED@elt#1#2\relax{%
-  \ifmeasuring@
-  \else \iffirstchoice@ \gdef\QED@stack{\qed@elt{}#2}\fi
-  \fi
-  #1%
-}
-%    \end{macrocode}
-%
-%  \begin{macro}{\mathqed}
-%    When a QED occurs inside a math formula, well, it is presumably a
-%    displayed equation. In order to find out where to place the QED
-%    symbol, we need to check what kind of equation structure we are in.
-%
-%    \begin{macrocode}
-\def\qed@warning{%
-  \PackageWarning{amsthm}{The \@nx\qedhere command may not work
-    correctly here}%
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\newcommand{\mathqed}{\quad\hbox{\qedsymbol}}
-%    \end{macrocode}
-%
-%    The \cs{linebox@qed} function comes into play with the \opt{fleqn}
-%    option.
-%    \begin{macrocode}
-\def\linebox@qed{\hfil\hbox{\qedsymbol}\hfilneg}
-%    \end{macrocode}
-% \end{macro}
-%
-%    Two large sections of code follow. One for \fn{amsmath} 2.0 and one
-%    for plain \latex/.
-%    \begin{macrocode}
-\@ifpackageloaded{amsmath}{%
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-  \def\math@qedhere{%
-    \@ifundefined{\@currenvir @qed}{%
-      \qed@warning\quad\hbox{\qedsymbol}%
-    }{%
-      \@xp\aftergroup\csname\@currenvir @qed\endcsname
-    }%
-  }
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-  \def\displaymath@qed{%
-    \relax
-    \ifmmode
-      \ifinner \aftergroup\linebox@qed
-      \else
-        \eqno
-        \let\eqno\relax \let\leqno\relax \let\veqno\relax
-        \hbox{\qedsymbol}%
-      \fi
-    \else
-       \aftergroup\linebox@qed
-    \fi
-  }
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-  \@xp\let\csname equation*@qed\endcsname\displaymath@qed
-%    \end{macrocode}
-%
-%    If the equation has both an equation number and a qed, we've got
-%    trouble, but we can provide half-way decent for the simple cases.
-%    \begin{macrocode}
-  \def\equation@qed{%
-    \iftagsleft@
-      \hbox{\phantom{\quad\qedsymbol}}%
-      \gdef\alt@tag{%
-        \rlap{\hbox to\displaywidth{\hfil\qedsymbol}}%
-        \global\let\alt@tag\@empty
-      }%
-    \else
-      \gdef\alt@tag{%
-        \global\let\alt@tag\@empty
-        \vtop{\ialign{\hfil####\cr
-                \tagform@\theequation\cr
-                \qedsymbol\cr}}%
-        \setbox\z@
-      }%
-    \fi
-  }
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-  \def\qed@tag{%
-    \global\tag@true \nonumber
-    &\omit\setboxz@h {\strut@ \qedsymbol}\tagsleft@false
-    \place@tag@gather
-    \kern-\tabskip
-    \ifst@rred \else \global\@eqnswtrue \fi \global\advance\row@\@ne \cr
-  }
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-  \def\split@qed{%
-    \def\endsplit{\crcr\egroup \egroup \ctagsplit@false \rendsplit@
-      \aftergroup\align@qed
-    }%
-  }
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-  \def\align@qed{%
-    \ifmeasuring@ \tag*{\qedsymbol}%
-    \else \let\math@cr@@@\qed@tag
-    \fi
-  }
-  \@xp\let\csname align*@qed\endcsname\align@qed
-  \@xp\let\csname gather*@qed\endcsname\align@qed
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-%% Needs some patching up for amsmath 1.2
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-}{% end of amsmath branch, start plain LaTeX branch
-%    \end{macrocode}
-%
-%    The \cn{qedhere} handling for generic \latex/ classes (\cls{article},
-%    \cls{book}) with the \pkg{amsthm} package (without \pkg{amsmath}) is
-%    fairly sketchy. When a qed symbol and an equation number are both
-%    applied to a single display, the results may not be entirely
-%    satisfactory, particularly when the \opt{fleqn} and/or \opt{leqno}
-%    options are used. [mjd,2000/01/17]
-%
-%    As for \cs{math@qedhere}, it is expected to occur only via
-%    \cn{qedhere}, where the \cs{aftergroup} makes sense.
-%    \begin{macrocode}
-  \def\math@qedhere{%
-    \@ifundefined{\@currenvir @qed}{%
-      \qed@warning \aftergroup\displaymath@qed
-    }{%
-      \@xp\aftergroup\csname\@currenvir @qed\endcsname
-    }%
-  }
-%    \end{macrocode}
-%
-%    The \cs{ifmmode} \cs{ifinner} case is expected to happen with the
-%    \opt{fleqn} option, where we have something like:
-%\begin{verbatim}
-%\hbox to\linewidth{\hbox{$...$}\hfil}
-%\end{verbatim}
-%    In order to counteract the \cs{hfil} we must jump out two grouping
-%    levels.
-%    \begin{macrocode}
-  \def\displaymath@qed{%
-    \relax
-    \ifmmode
-      \ifinner \aftergroup\aftergroup\aftergroup\linebox@qed
-      \else
-        \eqno \def\@badmath{$$}%
-        \let\eqno\relax \let\leqno\relax \let\veqno\relax
-        \hbox{\qedsymbol}%
-      \fi
-    \else
-       \aftergroup\linebox@qed
-    \fi
-  }
-%    \end{macrocode}
-%
-%    This definition is a fallback definition that places the qed and
-%    then the equation number, on the right-hand side. For \opt{leqno},
-%    not so good; but then
-%    \begin{macrocode}
-  \@ifundefined{ver@leqno.clo}{%
-    \def\equation@qed{\displaymath@qed \quad}%
-  }{%
-    \def\equation@qed{\displaymath@qed}%
-  }
-%    \end{macrocode}
-%
-%    If \pkg{amsmath} is not loaded, then we need to do some surgery
-%    on the \cn{[} macro. Normally it looks like this:
-%\begin{verbatim}
-% \[=macro:
-% ->\relax \ifmmode \@badmath \else
-% \ifvmode \nointerlineskip \makebox [.6\linewidth ]\fi $$\fi
-%\end{verbatim}
-%
-%    If arg 2 is \cs{m@th} when we make this test it indicates that the
-%    fleqn option is in effect. Perhaps try to do something there.
-%    \begin{macrocode}
-  \def\@tempa#1$#2#3\@nil{%
-    \def\[{#1$#2\def\@currenvir{displaymath}#3}%
-  }%
-  \expandafter\@tempa\[\@nil
-}
-%    \end{macrocode}
-%
-%    If an older version of \pkg{amsmath} is in use, we need to fall
-%    back to a simpler definition of \cs{math@qedhere}.
-%    \begin{macrocode}
-\@ifpackageloaded{amstex}{%
-  \def\@tempa{TT}%
-}{%
-  \@ifpackageloaded{amsmath}{%
-    \def\@tempb#1 v#2.#3\@nil{#2}%
-    \ifnum\@xp\@xp\@xp\@tempb\csname ver@amsmath.sty\endcsname v0.0\@nil
-       <\tw@
-      \def\@tempa{TT}%
-    \else
-      \def\@tempa{TF}%
-    \fi
-  }{%
-    \def\@tempa{TF}
-  }%
-}
-\if\@tempa
-  \renewcommand{\math@qedhere}{\quad\hbox{\qedsymbol}}%
-\fi
-%    \end{macrocode}
-%
-%    The reason that we do not simply use the \cn{square} symbol from
-%    \fn{msam} for the open-box qed symbol is that we want to avoid
-%    requiring users to have the AMSFonts font package. And the \fn{lasy}
-%    \cn{Box} is too large.
-%    \begin{macrocode}
-\newcommand{\openbox}{\leavevmode
-%    \end{macrocode}
-%    I think I got these numbers from measuring \fn{msam}'s \cn{square}
-%    but I forgot to make notes at the time. [mjd,1995/01/25]
-%    \begin{macrocode}
-  \hbox to.77778em{%
-  \hfil\vrule
-  \vbox to.675em{\hrule width.6em\vfil\hrule}%
-  \vrule\hfil}}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\DeclareRobustCommand{\textsquare}{%
-  \begingroup \usefont{U}{msa}{m}{n}\thr@@\endgroup
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-%<*classes>
-\@ifclasswith{\@classname}{noamsfonts}{%
-  \providecommand{\qedsymbol}{\openbox}%
-}{}
-\providecommand{\qedsymbol}{\textsquare}
-%</classes>
-%<amsthm>\providecommand{\qedsymbol}{\openbox}
-%    \end{macrocode}
-%
-%    The proof environment is never numbered, and has a \cn{qed} at the
-%    end, which makes it inconvenient to use \cn{newtheorem} for
-%    defining it. Also authors frequently need to substitute an
-%    alternative heading text (e.g.\ `Proof of Lemma 4.3')
-%    instead of the default `Proof'. For all these reasons we define the
-%    proof environment here instead of leaving it for authors to define.
-%    Text after the end of a proof, like that after the end of a theorem,
-%    begins a new paragraph.  This differs from basic \latex/ behavior.
-%    [bnb, 1999/09/27]
-%    \begin{macrocode}
-\newenvironment{proof}[1][\proofname]{\par
-  \pushQED{\qed}%
-  \normalfont \topsep6\p@\@plus6\p@\relax
-  \trivlist
-%<amsbook|amsproc>  \itemindent\normalparindent
-  \item[\hskip\labelsep
-%<amsbook|amsproc>        \scshape
-%<amsart|amsthm>        \itshape
-    #1\@addpunct{.}]\ignorespaces
-}{%
-  \popQED\endtrivlist\@endpefalse
-}
-%    \end{macrocode}
-%    Default for \cn{proofname}:
-%    \begin{macrocode}
-\providecommand{\proofname}{Proof}
-%    \end{macrocode}
-%
-%    For reference:
-%\begin{verbatim}
-% From: tycchow@math.mit.edu (Timothy Y. Chow)
-% Subject: Suppressing theorem numbering in LaTeX
-% Message-ID: <1994Aug11.234754.22523@galois.mit.edu>
-% Date: Thu, 11 Aug 94 23:47:54 GMT
-% To: tex-news@SHSU.EDU
-%
-% A friend of mine wants numbering of theorems, conjectures, and so on
-% suppressed if there is only one of them in his article.  In other words
-% he wants "Conjecture 1" to appear as simply "Conjecture" if there is no
-% Conjecture 2.  What is the best way to go about doing this?
-% ...
-%\end{verbatim}
-%    Maybe something clever can be done to make the desired behavior
-%    happen automatically. Note that this would seem to be a general
-%    numbering problem rather than a theorem-specific one, because
-%    similar behavior would be desirable for appendixes: according to
-%    standard publishing practice, if there's only one it is titled just
-%    `Appendix', and if there are more than one they are titled
-%    `Appendix A', `Appendix B', and so on.
-%
-%    \begin{macrocode}
-%</amsthm|classes>
-%<*classes>
-%    \end{macrocode}
-%
-%  \subsection{Utility commands used with AMS author packages}
-%
-%  \begin{macro}{\bb@skip}
-%    Skip to result in base-to-base distance from previous to next box.
-%    \begin{macrocode}
-\def\bb@skip#1{%
-  \skip@#1\relax \advance\skip@-\prevdepth \advance\skip@-\baselineskip
-  \vskip\skip@}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{\markleft}
-%    Basic \latex/ has \cn{markright} and \cn{markboth}, but sometimes
-%    it's necessary to change just the left running head.  This macro
-%    completes the set.  From the \pkg{altxext.sty} module of Klaus
-%    Lagally's \pkg{arabtex}.  [bnb, 2004/03/25]
-%    \begin{macrocode}
-\def\markleft#1{{\let\protect\noexpand
-    \let\label\relax \let\index\relax \let\glossary\relax
-    \expandafter\@markleft\@themark{#1}%
-    \mark{\@themark}}%
-  \if@nobreak\ifvmode\nobreak\fi\fi}
-\def\@markleft#1#2#3{\gdef\@themark{{#3}{#2}}}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{\DH}
-%  \begin{macro}{\dh}
-%  \begin{macro}{\DJ}
-%  \begin{macro}{\dj}
-%    The Icelandic thorn and eth and the Croatian barred D are part of
-%    the T1 font encoding, but aren't available in OT1.  However, they
-%    are needed (rarely) in the author names or bibliographies.  Provide
-%    emulations, using the thorn in \fn{msbm} or D's barred with a macron.
-%    The lowercase eth requires an \cs{edef} to access \fn{msbm} properly.
-%    Define it separately to permit checking for small caps.  [bnb, 2004/04/05]
-%    \begin{macrocode}
-\def\@tempa{}
-\edef\@dh{%
-  \noexpand\mathhexbox{\hexnumber@\symAMSb}67}
-\DeclareTextCommand{\dh}{OT1}{%
-  \edef\@tempb{\scdefault}%
-  \ifx\f@shape\@tempb
-    \leavevmode
-    \raisebox{-.8ex}{\makebox[\z@][l]{\hskip-.08em\accent"16\hss}}d%
-  \else
-    \@dh
-  \fi
-}
-\DeclareTextCommand{\DH}{OT1}{%
-  \leavevmode\raisebox{-.5ex}{\makebox[\z@][l]{\hskip-.07em\accent"16\hss}}D}
-\DeclareTextCommand{\DJ}{OT1}{%
-  \leavevmode\raisebox{-.5ex}{\makebox[\z@][l]{\hskip-.07em\accent"16\hss}}D}
-\DeclareTextCommand{\dj}{OT1}{%
-  \edef\@tempa{\f@shape}\edef\@tempb{\scdefault}%
-  \ifx\@tempa\@tempb
-    \leavevmode
-    \raisebox{-.75ex}{\makebox[\z@][l]{\hskip-.08em\accent"16\hss}}d%
-  \else
-    \leavevmode\raisebox{.02ex}{\makebox[\z@][l]{\hskip.1em\accent"16\hss}}d%
-  \fi}
-%    \end{macrocode}
-%  \end{macro}
-%  \end{macro}
-%  \end{macro}
-%  \end{macro}
-%
-%  \subsection{Hyphenation exceptions}
-%    Some common hyphenation exceptions, based on the listing in
-%    TUGboat vol 10, no 3, November 1989, pp.~336--341. Many words from
-%    the TUGboat list that seemed less likely to occur in mathematical
-%    text have been omitted because hyphenation exceptions use up memory
-%    (most versions of \tex/ currently have a limit of 307 on hyphenation
-%    exceptions; each added hyphenation exception uses up something like
-%    2 extra words of main memory as well). The list of hyphenations for
-%    proper names could be expanded forever if room permitted; we
-%    restrict ourselves to a rather short, extremely arbitrary list.
-%    Note that the hyphenation rules of British English differ in some
-%    particulars from the US rules, so some of the hyphenations
-%    given below may need to be overridden for proper UK hyphenation.
-%
-%    \begin{macrocode}
-\hyphenation{acad-e-my acad-e-mies af-ter-thought anom-aly anom-alies
-an-ti-deriv-a-tive an-tin-o-my an-tin-o-mies apoth-e-o-ses
-apoth-e-o-sis ap-pen-dix ar-che-typ-al as-sign-a-ble as-sist-ant-ship
-as-ymp-tot-ic asyn-chro-nous at-trib-uted at-trib-ut-able bank-rupt
-bank-rupt-cy bi-dif-fer-en-tial blue-print busier busiest
-cat-a-stroph-ic cat-a-stroph-i-cally con-gress cross-hatched data-base
-de-fin-i-tive de-riv-a-tive dis-trib-ute dri-ver dri-vers eco-nom-ics
-econ-o-mist elit-ist equi-vari-ant ex-quis-ite ex-tra-or-di-nary
-flow-chart for-mi-da-ble forth-right friv-o-lous ge-o-des-ic
-ge-o-det-ic geo-met-ric griev-ance griev-ous griev-ous-ly
-hexa-dec-i-mal ho-lo-no-my ho-mo-thetic ideals idio-syn-crasy
-in-fin-ite-ly in-fin-i-tes-i-mal ir-rev-o-ca-ble key-stroke
-lam-en-ta-ble light-weight mal-a-prop-ism man-u-script mar-gin-al
-meta-bol-ic me-tab-o-lism meta-lan-guage me-trop-o-lis
-met-ro-pol-i-tan mi-nut-est mol-e-cule mono-chrome mono-pole
-mo-nop-oly mono-spline mo-not-o-nous mul-ti-fac-eted mul-ti-plic-able
-non-euclid-ean non-iso-mor-phic non-smooth par-a-digm par-a-bol-ic
-pa-rab-o-loid pa-ram-e-trize para-mount pen-ta-gon phe-nom-e-non
-post-script pre-am-ble pro-ce-dur-al pro-hib-i-tive pro-hib-i-tive-ly
-pseu-do-dif-fer-en-tial pseu-do-fi-nite pseu-do-nym qua-drat-ic
-quad-ra-ture qua-si-smooth qua-si-sta-tion-ary qua-si-tri-an-gu-lar
-quin-tes-sence quin-tes-sen-tial re-arrange-ment rec-tan-gle
-ret-ri-bu-tion retro-fit retro-fit-ted right-eous right-eous-ness
-ro-bot ro-bot-ics sched-ul-ing se-mes-ter semi-def-i-nite
-semi-ho-mo-thet-ic set-up se-vere-ly side-step sov-er-eign spe-cious
-spher-oid spher-oid-al star-tling star-tling-ly sta-tis-tics
-sto-chas-tic straight-est strange-ness strat-a-gem strong-hold
-sum-ma-ble symp-to-matic syn-chro-nous topo-graph-i-cal tra-vers-a-ble
-tra-ver-sal tra-ver-sals treach-ery turn-around un-at-tached
-un-err-ing-ly white-space wide-spread wing-spread wretch-ed
-wretch-ed-ly Eng-lish Euler-ian Feb-ru-ary Gauss-ian
-Hamil-ton-ian Her-mit-ian Jan-u-ary Japan-ese Kor-te-weg
-Le-gendre Mar-kov-ian Noe-ther-ian No-vem-ber Rie-mann-ian Sep-tem-ber}
-%    \end{macrocode}
-%
-%  \subsection{Initialization}
-%    We define a function to do the normal calculations that we want for
-%    \cn{textheight} and \cn{textwidth}
-%
-%  \begin{macro}{\calclayout}
-%    Subtract the height of the running heads:
-%    \begin{macrocode}
-\def\calclayout{\advance\textheight -\headheight
-  \advance\textheight -\headsep
-%    \end{macrocode}
-%    We set \cn{oddsidemargin} and \cn{evensidemargin} to
-%    center the text on the page.
-%    \begin{macrocode}
-  \oddsidemargin\paperwidth
-  \advance\oddsidemargin -\textwidth
-  \divide\oddsidemargin\tw@
-%    \end{macrocode}
-%    Now we subtract the default margin provided by standard DVI
-%    drivers.  But first we make sure that the final margin will
-%    be at least .5 inch.
-%    \begin{macrocode}
-  \ifdim\oddsidemargin<.5truein \oddsidemargin.5truein \fi
-  \advance\oddsidemargin -1truein
-  \evensidemargin\oddsidemargin
-%    \end{macrocode}
-%     And we set \cn{topmargin} to get vertical centering as well.
-%    \begin{macrocode}
-  \topmargin\paperheight \advance\topmargin -\textheight
-  \advance\topmargin -\headheight \advance\topmargin -\headsep
-%    \end{macrocode}
-%    Height of running foot ignored: not present.
-%    \begin{macrocode}
-  \divide\topmargin\tw@
-%    \end{macrocode}
-%    We provide a minimum of .5in (after compensating for the default
-%    margin---see next step).
-%    \begin{macrocode}
-  \ifdim\topmargin<.5truein \topmargin.5truein \fi
-%    \end{macrocode}
-%    Now subtract the default margin provided by standard DVI
-%    drivers.
-%    \begin{macrocode}
-  \advance\topmargin -1truein\relax
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    Initialize the dimensions, page numbering, etc.  For inhouse use,
-%    administrative stuff is isolated in separate files.
-%    \begin{macrocode}
-%<amsart>\InputIfFileExists{amsart.cfg}{}{%
-%<amsproc>\InputIfFileExists{amsproc.cfg}{}{%
-%<amsbook>\InputIfFileExists{amsbook.cfg}{}{%
-  \calclayout % initialize
-  \pagenumbering{arabic}%
-  \pagestyle{headings}%
-  \thispagestyle{plain}%
-}
-%    \end{macrocode}
-%
-%    If we are in compatibility mode, add some backward compatibility
-%    stuff below. Otherwise quit here.
-%    \begin{macrocode}
-\if@compatibility \else\endinput\fi
-%    \end{macrocode}
-%
-%    Compensate for changed meaning of \cn{tiny}:
-%    \begin{macrocode}
-\def\tiny{\Tiny}
-%    \end{macrocode}
-%
-%    The macro \cn{defaultfont} was provided in version 1.1 of amsart;
-%    retained for compatibility as a synonym of \cn{normalfont}. Resets
-%    everything except for size.
-%    \begin{macrocode}
-\def\defaultfont{\normalfont}
-%    \end{macrocode}
-%
-%    Macro for making non-slanted numbers and punctuation in italic
-%    or slanted text.  This is to avoid visual inconsistencies
-%    between numbers or parentheses in math and adjacent numbers or
-%    parentheses in text.
-%    \begin{macrocode}
-\def\rom{\textup}
-%    \end{macrocode}
-%
-%    For backward compatibility with version 1.1 of \cls{amsart}, we
-%    define \env{pf}, \env{pf*} environments. And undefine \cn{proof}
-%    just in case an existing document contains a \cn{newenvironment} or
-%    \cn{newcommand} for it, as that would now cause an error.
-%    \begin{macrocode}
-\let\@newpf\proof \let\proof\relax \let\endproof\relax
-\newenvironment{pf}{\@newpf[\proofname]}{\popQED\endtrivlist}
-\newenvironment{pf*}[1]{\@newpf[#1]}{\popQED\endtrivlist}
-%    \end{macrocode}
-%
-%    The usual \cn{endinput} to ensure that random garbage at the end of
-%    the file doesn't get copied by \fn{docstrip}.
-%    \begin{macrocode}
-\endinput
-%</classes>
-%    \end{macrocode}
-%
-% \changes{v1.2a}{1995/02/01}{Added global init for @secnumber}
-% \changes{v1.2a}{1995/02/01}{Made psamsfonts option pass cmex10 to
-%   amsmath}
-% \changes{v1.2a}{1995/02/01}{Added missing endpar after authors in
-%   amsbook @maketitle}
-%
-% \changes{v1.2b}{1995/02/20}{Improve handling of abstract}
-% \changes{v1.2b}{1995/02/20}{Allow titlepage option for articles}
-% \changes{v1.2b}{1995/02/20}{Suppress logo and copyright info for
-%   generic AMS classes}
-% \changes{v1.2b}{1995/02/20}{Use `Date' instead of `Received by...' in
-%   the generic AMS classes}
-%
-% \changes{v2.13}{2002/12/06}{Added a warning for thanks inside author}
-%
-% \CheckSum{5682}
-% \Finale
diff --git a/Master/texmf-dist/source/latex/amslatex/amsdtx.dtx b/Master/texmf-dist/source/latex/amslatex/amsdtx.dtx
deleted file mode 100644
index cd9bb13b2c2..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/amsdtx.dtx
+++ /dev/null
@@ -1,1192 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsdtx.dtx",
-%%%   version   = "2.06",
-%%%   date      = "2004/08/06",
-%%%   time      = "12:18:49 EDT",
-%%%   checksum  = "19929 1192 3506 39423",
-%%%   author    = "Michael J. Downes, updated by David M. Jones",
-%%%   copyright = "Copyright 1996, 1999, 2004
-%%%                American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Publications Technical Group,
-%%%                201 Charles Street,
-%%%                Providence, RI 02904,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, amslatex, ams-latex, user documentation",
-%%%   supported = "yes",
-%%%   abstract  = "This is the source for two document classes, amsdtx
-%%%                and amsldoc, used to produce AMS user documentation
-%%%                or technical documentation.",
-%%%   docstring = "The checksum field above contains a CRC-16
-%%%                checksum as the first value, followed by the
-%%%                equivalent of the standard UNIX wc (word
-%%%                count) utility output of lines, words, and
-%%%                characters.  This is produced by Robert
-%%%                Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-%
-% \iffalse
-%    The following section of code makes this file self-printable.
-%<*driver>
-\NeedsTeXFormat{LaTeX2e}
-\documentclass{amsdtx}
-\newcommand{\rp}{\let\PBS\\\raggedright\let\\\PBS}
-
-\makeindex
-
-\CodelineIndex
-
-\begin{document}
-\title{The \cls{amsldoc} and \cls{amsdtx} document classes}
-\author{American Mathematical Society\\Michael Downes\\
-  updated by David M. Jones}
-\date{Version \fileversion, \filedate}
-\hDocInput{amsdtx.dtx}
-\PrintIndex
-\end{document}
-%</driver>
-% \fi
-%
-%^^A If this file is printed by itself the \fileversion and \filedate
-%^^A information will come from the file header rather than from the
-%^^A \ProvidesClass command. See \hDocInput.
-% \maketitle
-%
-%    \tableofcontents
-%
-% \MakeShortVerb\|
-% \section{Introduction}
-%    This file is the source for two documentclasses, \cls{amsldoc}
-%    (used for the \amslatex/ user's guide) and \cls{amsdtx} (used for
-%    printing AMS \fn{.dtx} files). The generic \cls{book} class is used
-%    as a base, but the \cls{amsdtx} class is modified to serve as an
-%    article-type class. This affects the form of documentation files
-%    mainly in the use of \cn{maketitle} and \cn{chapter}.
-%
-% \begin{table}
-% \caption{Features of the \cls{amsldoc} and \cls{amsdtx} classes}
-% \newcommand{\rpth}{\rp{.75}}
-% \centering
-% \begin{tabular}{lp{.65\columnwidth}}
-% Command Name& Purpose\\
-% \hline
-% \cn{cn}& \rp To print a user command name: \verb"\cn{title}"; leading
-%   backslash can be optionally included for control symbols:
-%   \verb"\cn{\%}". The \cn{cn} command works properly even in macro
-%   arguments (compare to, e.g., \cn{verb}\verb"'\newif'"). But beware
-%   of a fragile control symbol (are there any?) in a moving argument.\\
-% \cn{cs}& \rp `Control sequence': to print an internal command name,
-%   not intended for the end user\\
-% \cn{env}& \rp To print an environment name: \verb"\env{table}"\\
-% \cn{pkg}& \rp To print a package name: \verb"\pkg{eufrak}"\\
-% \cn{cls}& \rp To print a class name: \verb"\cls{book}"\\
-% \cn{opt}& \rp To print the name of a class or package option:
-%   \verb"\opt{twocolumn}"\\
-% \cn{bst}& \rp To print the name of a \bibtex/ style
-%   \verb"\bst{amsalpha}"\\
-% \cn{fn}& \rp To print a file name or font name: \verb"\fn{T1enc.def}",
-%   \verb"\fn{cmsy10}"\\
-% \cn{fnt}& \rp To print a font name: \verb"\fn{cmsy10}" \\
-% \cn{cnt}& \rp To print a counter name: \verb"\fn{topnumber}" \\
-% \cn{qc}& \rp To quote a single character: \verb"\qc{\%}";
-%   this works properly for special characters, even in macro
-%   arguments, unlike e.g., \verb"\verb'%'"\\
-% \cn{latex/} etc.& \rp Convenient forms of \cn{LaTeX}, \cn{TeX},
-%   \cn{BibTeX}, etc. that are easier to type and have a trailing slash
-%   to eliminate the following-space problem (without needing different
-%   markup in different contexts)
-% \end{tabular}
-% \end{table}
-%
-% \StopEventually{}
-%
-%    Standard starting pieces. (Note: the reason each \cn{ProvidesClass}
-%    command is placed on a line by itself, with separate begin and end
-%    guards for docstripping, is to make automatic update of file date
-%    and version slightly easier and more robust.)
-%    \begin{macrocode}
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1995/06/01]% LaTeX date must be June 1995 or later
-%<*amsldoc>
-\ProvidesClass{amsldoc}[2004/08/06 v2.06]
-%</amsldoc>
-%<*amsdtx>
-\ProvidesClass{amsdtx}[2004/08/06 v2.06]
-%</amsdtx>
-%    \end{macrocode}
-%
-% \section{Implementation}
-%    Start with the generic book class as a base.
-%    \begin{macrocode}
-\DeclareOption*{\PassOptionsToClass{\CurrentOption}{book}}
-\ProcessOptions
-\LoadClass{book}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\IfFileExists{url.sty}{%
-    \RequirePackage{url}\relax
-    \@gobble
-}{%
-    \@firstofone
-}
-{
-    \DeclareRobustCommand{\url}[1]{%
-        \def\@tempa{#1}%
-        \texttt{\urlsetup $\expandafter\strip@prefix\meaning\@tempa$}%
-    }%
-    \def\urlsetup{%
-        \check@mathfonts \textfont\@ne\the\font \textfont\z@\the\font
-        \urlfix +\urlfix\=\urlfix\:\urlfix\-\urlfix\.\urlfix\,\urlfix\;%
-        \urlbreak\&\urlbreak\/\urlbreak\?%
-    }%
-    \def\urlbreak#1{%
-        \mathcode`#1="8000
-        \begingroup \lccode`\~=`#1 \lowercase{\endgroup \edef~}%
-        {\mathchar\number`#1\penalty\hyphenpenalty}%
-    }%
-    \def\urlfix#1{%
-        \mathcode`#1=`#1\relax
-    }%
-}
-%    \end{macrocode}
-%
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%
-%    \begin{macrocode}
-\providecommand{\qq}[1]{\textquotedblleft#1\/\textquotedblright}
-\providecommand{\mdash}{\textemdash\penalty\exhyphenpenalty}
-\providecommand{\ndash}{\textendash\penalty\exhyphenpenalty}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\let\@xp\expandafter
-%    \end{macrocode}
-%    \section{Indexing primitives}
-%
-%    Unlike \pkg{amsdtx}, \pkg{amsldoc} doesn't load the \pkg{doc}
-%    package, so we need to provide the following logical names.  The
-%    values are consistent with \fn{makeindex}'s default conventions.
-%    \begin{macrocode}
-%<*amsldoc>
-\def\actualchar{@}
-\def\quotechar{"}
-\def\levelchar{!}
-\def\encapchar{|}
-\def\verbatimchar{+}
-%    \end{macrocode}
-%    We also need the \cs{ifcodeline@index} switch.
-%    \begin{macrocode}
-\newif\ifcodeline@index
-%</amsldoc>
-%    \end{macrocode}
-%
-%    \begin{macro}{\autoindex}
-%    When generating a codeline index, this encapsulates the page
-%    number in italics.
-%    \begin{macrocode}
-\newcommand*{\autoindex}[1]{%
-    \index{#1\ifcodeline@index\encapchar usage\fi}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ntt}
-%    To avoid font substitution warnings we make the tt font always
-%    print in the normal weight and shape.
-%    \begin{macrocode}
-\newcommand{\ntt}{\normalfont\ttfamily}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\indexcs}
-%    Index a control sequence without printing it. Note
-%    non-long. The \cs{@nobslash} strips off an optional leading
-%    backslash before passing the control sequence name to
-%    \cs{@indexcs}.  This means that |\indexcs{\cs}| and
-%    |\indexcs{cs}| produce the same index entry.
-%    \begin{macrocode}
-\newcommand*{\indexcs}[1]{%
-    \@xp\@xp\@xp\@indexcs\@xp\@nobslash\string#1\@nil
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@indexcs}
-%    Given |cs| as an argument, this writes something like
-%    |cs@\verb"*+\cs+| to the \fn{.idx} file (or |cs=\verb!*+\cs+| if
-%    using \fn{doc.sty}).
-%    \begin{macrocode}
-\def\@indexcs#1\@nil{%
-    \autoindex{#1\actualchar
-        \string\verb\quotechar*\verbatimchar
-            \@xp\@bothoftwo\string\ #1\@empty
-        \verbatimchar
-    }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@bothoftwo}
-%    This has the effect of removing spaces before each of the
-%    arguments.  In particular, it removes the space generated by
-%    \verb*+\string\ + above.
-%    \begin{macrocode}
-\def\@bothoftwo#1#2{#1#2}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\category@index}
-%    \begin{macrocode}
-\def\category@index#1#2{%
-    {\ntt#2}%
-    \@category@index{#1}{#2}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@category@index}
-%    \begin{macrocode}
-\def\@category@index#1#2{%
-    \autoindex{%
-        #2\actualchar\string\texttt{#2}%
-        \ifx\@nil#1\@nil\else\space#1\fi
-    }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    Some functions to support \cn{cn} etc. For most of these commands
-%    we don't really want them to be \cs{long}! But in some early
-%    releases of \LaTeXe\ the \verb'*' form of \cn{newcommand} was not
-%    yet available.
-%
-%    We use the name \cn{bslchar} instead of \cn{bslash} to avoid
-%    potential conflict with the \pkg{doc} package \cn{bslash} command.
-%    Unlike \cn{bslash}, \cn{bslchar} survives unlimited
-%    writing/expansion because it is a chardef.
-%    \begin{macrocode}
-\chardef\bslchar=`\\ % p. 424, TeXbook
-\newcommand{\addbslash}{\expandafter\@addbslash\string}
-\def\@addbslash#1{\bslchar\@nobslash#1}
-\newcommand{\nobslash}{\expandafter\@nobslash\string}
-\def\@nobslash#1{\ifnum`#1=\bslchar\else#1\fi}
-%    \end{macrocode}
-%
-%  \begin{macro}{\@boxorbreak}
-%    Start up for a \cn{cs} or \cn{cn} command, adds an \cs{hbox} if in
-%    math, or an allowbreak penalty if the preceding item is not a space.
-%    (In case two such commands are used side-by-side.)
-%    \begin{macrocode}
-\def\@boxorbreak{%
-    \leavevmode
-    \ifmmode\hbox\else\ifdim\lastskip=\z@\penalty9999 \fi\fi
-}
-%    \end{macrocode}
-%  \end{macro}
-%
-%    Control sequence. The function \cn{addbslash} makes this command
-%    also usable for some special control sequences like \cn{\%} \cn{\}}
-%    \cn{\{}: instead of writing |\cs{%}| which doesn't work, you can
-%    write |\cs{\%}|.
-%    \begin{macrocode}
-\DeclareRobustCommand{\cs}[1]{%
-    \@boxorbreak{%
-        \ntt
-        \addbslash#1\@empty
-        \@xp\@xp\@xp\@indexcs\@xp\@nobslash\string#1\@nil
-    }%
-}
-%    \end{macrocode}
-%
-%    Allow distinguishing non-private `command names' that will be
-%    visible to the user from internal (mostly private) `control
-%    sequences'.
-%    \begin{macrocode}
-\let\cn\cs
-%    \end{macrocode}
-%
-%    The following items should not normally appear in math mode so they
-%    don't need to call \cs{@boxorbreak}.
-%
-%    \latex/ documentclass name.
-%    \begin{macrocode}
-\DeclareRobustCommand{\cls}{\category@index{class}}
-%    \end{macrocode}
-%
-%    \latex/ package name.
-%    \begin{macrocode}
-\DeclareRobustCommand{\pkg}{\category@index{package}}
-%    \end{macrocode}
-%
-%    \latex/ option name.
-%    \begin{macrocode}
-\DeclareRobustCommand{\opt}{\category@index{option}}
-%    \end{macrocode}
-%
-%    Environment name.
-%    \begin{macrocode}
-%<amsdtx>\DeclareRobustCommand{\env}[1]{{\ntt#1}\SpecialEnvIndex{#1}}
-%<amsldoc>\DeclareRobustCommand{\env}{\category@index{environment}}
-%    \end{macrocode}
-%
-%    File name.
-%    \begin{macrocode}
-\DeclareRobustCommand{\fn}{\category@index{}}
-%    \end{macrocode}
-%
-%    \bibtex/ style.
-%    \begin{macrocode}
-\DeclareRobustCommand{\bst}{\category@index{\string\BibTeX{} style}}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\DeclareRobustCommand{\cnt}{\category@index{counter}}
-\DeclareRobustCommand{\fnt}{\category@index{font}}
-%    \end{macrocode}
-%
-%    With long command names or file names we sometimes prefer to allow
-%    hyphenation in the tt font (in combination with suitable
-%    \cn{hyphenation} statements for individual documents). To make this
-%    work we must turn off the feature of \latex/ that disables the
-%    hyphenchar of the tt fonts.
-%
-%    The method shown here depends on the assumption that OT1 encoding
-%    will be used for the tt fonts. An encoding-independent method would
-%    be more awkward: You'd have to explicitly load the relevant
-%    fonts, let's say by using \cn{AtBeginDocument}, and undo the
-%    hyphenchar change individually for each font.
-%
-%    Instead we force loading, or possibly reloading (depending on the
-%    preload options used locally for creating the \latex/ format file),
-%    of the \fn{OT1/cmtt} fd file, and then clear the macro
-%    \cs{OT1+cmtt} which contains code to execute whenever a font of
-%    this family is first loaded. The default value is to turn off the
-%    hyphenchar, and that's what we don't want.
-%
-%    This method is not especially palatable but other methods that
-%    don't involve loading the fd file are significantly less reliable.
-%    \begin{macrocode}
-\def\allowtthyphens{\begingroup
-  \fontencoding{OT1}\fontfamily{cmtt}%
-%    \end{macrocode}
-%    Undefine the csname that \cs{try@load@fontshape} tests to determine
-%    whether the fd file needs loading. Then call
-%    \cs{try@load@fontshape}. Then we can remove the `turn off
-%    hyphenation' code, which as it happens resides in the same csname
-%    that was tested.
-%    \begin{macrocode}
-  \expandafter\let\csname OT1+cmtt\endcsname\relax
-  \try@load@fontshape
-  \endgroup
-  \expandafter\let\csname OT1+cmtt\endcsname\@empty
-}
-%    \end{macrocode}
-%
-%    We allow some slop at the right margin because we have some
-%    long control sequence names and verbatim text to deal with. Also
-%    ignore underfull hboxes and vboxes unless they are really bad.
-%    \begin{macrocode}
-\hfuzz2pc
-\vbadness9999 \hbadness5000
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\AmS{{\protect\usefont{OMS}{cmsy}{m}{n}%
-  A\kern-.1667em\lower.5ex\hbox{M}\kern-.125emS}}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\latex/{{\protect\LaTeX}}
-\def\amslatex/{{\protect\AmS-\protect\LaTeX}}
-\def\tex/{{\protect\TeX}}
-\def\amstex/{{\protect\AmS-\protect\TeX}}
-\def\bibtex/{{Bib\protect\TeX}}
-%    \end{macrocode}
-%
-%    \cn{makeindex} command is already used for other purposes.
-%    \begin{macrocode}
-\def\makeindx/{MakeIndex}
-%    \end{macrocode}
-%
-%    Don't allow a break after the hyphen:
-%    \begin{macrocode}
-\def\xypic/{XY\mbox{-}pic}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\newcommand{\Textures}{\textit{Textures}}
-%    \end{macrocode}
-%
-%    `Meta' macro.
-%    \begin{macrocode}
-\def\<#1>{\textit{$\langle$#1\/$\rangle$}}
-%    \end{macrocode}
-%
-%    Reduce itemsep in lists.
-%    \begin{macrocode}
-\def\@listi{%
-  \leftmargin\leftmargini
-  \topsep 3\p@ \@plus2\p@ \@minus\p@
-  \parsep \p@ \@plus\p@ \itemsep\parsep
-}
-\let\@listI\@listi
-\@listi
-\def\@listii{%
-  \leftmargin\leftmarginii
-  \labelwidth\leftmarginii \advance\labelwidth-\labelsep
-  \topsep\p@\@plus\p@ \@minus\p@
-  \parsep\z@skip \itemsep\z@skip
-}
-\def\@listiii{%
-  \leftmargin\leftmarginiii
-  \labelwidth\leftmarginiii \advance\labelwidth-\labelsep
-  \topsep\z@skip \parsep\z@skip \itemsep\z@skip
-}
-%    \end{macrocode}
-%
-%    An environment to encapsulate remarks relevant to old versions but
-%    not essential for the current version.
-%    \begin{macrocode}
-\newenvironment{histnote}{%
-  \trivlist\item[\hspace{\labelsep}\bfseries Historical Note:]%
-}{%
-  \endtrivlist
-}
-%    \end{macrocode}
-%
-%    Turn off \cs{autoindex} during \cn{tableofcontents} or similar.
-%    \begin{macrocode}
-\def\@starttoc#1{\begingroup
-  \let\autoindex\@gobble
-  \makeatletter
-  \@input{\jobname.#1}\if@filesw
-  \expandafter\newwrite\csname tf@#1\endcsname
-             \immediate\openout
-                 \csname tf@#1\endcsname \jobname.#1\relax
-  \fi \global\@nobreakfalse \endgroup}
-%    \end{macrocode}
-%
-%    Make glossary commands a no-op for the moment. [mjd,1994/10/03]
-%    Provide a \cn{secref} command for section references.
-%    \begin{macrocode}
-%<*amsldoc>
-\newcommand{\gloss}[1]{}
-%</amsldoc>
-\newcommand*{\secref}[1]{\S\ref{#1}}
-%    \end{macrocode}
-%
-%    We can write |\qc{\%}| to quote a single
-%    character in situations where |\verb"%"| would not work, mainly
-%    when text is read as a macro argument (e.g., footnotes).
-%    \begin{macrocode}
-\newcommand{\qc}[1]{}% check for prior definition
-\edef\qc#1{\noexpand\protect\expandafter\noexpand\csname qc \endcsname
-  \noexpand\protect#1}
-%    \end{macrocode}
-%    For this function the first argument is \cn{protect} and just needs
-%    to be discarded. The method for removing a leading backslash is to
-%    turn off \cs{escapechar}; this is more forgiving of variations like
-%    |\qc{$}|. If the argument is `|\ |' we print a cmtt visible-space
-%    character, \qc{\ }.
-%    \begin{macrocode}
-\@namedef{qc }#1#2{\begingroup\ntt
-  \ifx\ #2\char`\ \else\escapechar\m@ne\string#2\fi\endgroup}
-%    \end{macrocode}
-%    Declare a few character names to avoid e.g., indexing difficulties.
-%    \begin{macrocode}
-\DeclareRobustCommand{\qcat}{\qc\@}%
-\DeclareRobustCommand{\qcamp}{\qc\&}%
-\DeclareRobustCommand{\qcbang}{\qc\!}%
-%    \end{macrocode}
-%
-%  \begin{macro}{\arg}
-%    Change \cn{arg} to print a macro argument number:
-%    \begin{macrocode}
-\DeclareRobustCommand{\arg}[1]{{\ntt\##1}}
-%    \end{macrocode}
-%  \end{macro}
-%
-%    We need to emulate the \pkg{amsthm} \cn{qedsymbol} for the
-%    \amslatex/ user's guide.
-%    \begin{macrocode}
-%<*amsldoc>
-\newcommand{\openbox}{\leavevmode
-  \hbox to.77778em{%
-  \hfil\vrule
-  \vbox to.675em{\hrule width.6em\vfil\hrule}%
-  \vrule\hfil}}
-\newcommand{\qedsymbol}{\openbox}
-%</amsldoc>
-%    \end{macrocode}
-%
-%    Logical markup for e-mail address:
-%    \begin{macrocode}
-%<amsldoc>\def\mail{\texttt}
-%    \end{macrocode}
-%
-%    Shorthand for indexing:
-%    \begin{macrocode}
-%<*amsldoc>
-\def\*#1{\def\@tempa{#1}\def\@tempb{*}%
-  \ifx\@tempa\@tempb \expandafter\index
-  \else #1\index{#1}\fi}
-%</amsldoc>
-%    \end{macrocode}
-%
-%    Non-indexed \cn{cn} (maybe call this |\cn*|?)
-%    \begin{macrocode}
-\def\ncn#1{{\let\index\@gobble\cn{#1}}}
-%    \end{macrocode}
-%    Indexing difficulties with !, @.
-%    \begin{macrocode}
-
-\DeclareRobustCommand{\cnbang}{%
-  \ncn{\!}\index{"!@{\ntt\bslchar\qcbang}}}
-\DeclareRobustCommand{\cnat}{%
-  \ncn{\!}\index{"@@{\ntt\bslchar\qcat}}}
-%    \end{macrocode}
-%
-%    Shorthand for a discouraged, but not forbidden, line break:
-%    \begin{macrocode}
-\def\5{\penalty500 }
-%    \end{macrocode}
-%
-%    Environment for error message examples. Use \cs{meaning} to allow
-%    reading the error message text as an ordinary brace-delimited arg
-%    but still be able to print embedded braces; and first change the
-%    backslash catcode to prevent extra spaces after control words.
-%    \begin{macrocode}
-%<*amsldoc>
-\newenvironment{error}{%
-  \begingroup\catcode`\\=12 \expandafter\endgroup\errora
-}{%
-  \endtrivlist
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\newcommand{\errora}[1]{%
-  \trivlist
-  \item[\hskip\labelsep\errorbullet\enspace
-    \ntt\frenchspacing\def\@tempa{#1}%
-    \expandafter\strip@prefix\meaning\@tempa]\leavevmode\par
-}
-%    \end{macrocode}
-%    \cs{errorbullet} is just an attempt at a simple graphic device that
-%    doesn't require any special fonts.
-%    \begin{macrocode}
-\newcommand{\errorbullet}{\rule[-.5pt]{2.5pt}{7.5pt}%
-  \rule[-.5pt]{5pt}{2.5pt}\kern-2.5pt%
-  \rule[4.5pt]{2.5pt}{2.5pt}}
-%</amsldoc>
-%    \end{macrocode}
-%    A couple of subheading commands:
-%    \begin{macrocode}
-\newcommand{\errexa}{\par\noindent\textit{Example}:\ }
-\newcommand{\errexpl}{\par\noindent\textit{Explanation}:\ }
-%    \end{macrocode}
-%
-% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% \section{\cls{amsldoc} style modifications for sectioning commands}
-%    The following section deals with book commands (part, chapter,
-%    frontmatter, \dots).
-%    \begin{macrocode}
-%<*amsldoc>
-%    \end{macrocode}
-%
-%    Modifications of sectioning commands from \fn{book.cls}, mostly
-%    reducing font sizes and vertical spacing.
-%    \begin{macrocode}
-\renewcommand\frontmatter{\clearpage
-            \@mainmatterfalse\pagenumbering{roman}}
-\renewcommand\mainmatter{\clearpage
-       \@mainmattertrue\pagenumbering{arabic}}
-\renewcommand\backmatter{\clearpage \@mainmatterfalse}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\renewcommand\part{\clearpage
-                 \thispagestyle{plain}%
-                 \if@twocolumn
-                     \onecolumn
-                     \@tempswatrue
-                   \else
-                     \@tempswafalse
-                 \fi
-                 \hbox{}\vfil
-                 \secdef\@part\@spart}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\@part[#1]#2{%
-    \ifnum \c@secnumdepth >-2\relax
-      \refstepcounter{part}%
-      \addcontentsline{toc}{part}{\thepart\hspace{1em}#1}%
-    \else
-      \addcontentsline{toc}{part}{#1}%
-    \fi
-    \markboth{}{}%
-    {\centering
-     \interlinepenalty \@M
-     \reset@font
-     \ifnum \c@secnumdepth >-2\relax
-       \Large\bfseries \partname~\thepart
-       \par
-       \vskip 20\p@
-     \fi
-     \Large \bfseries #2\par}%
-    \@endpart}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\@spart#1{%
-    {\centering
-     \interlinepenalty \@M
-     \reset@font
-     \Large \bfseries #1\par}%
-    \@endpart}
-\def\@endpart{\vfil\newpage
-              \if@twoside
-                \hbox{}%
-                \thispagestyle{empty}%
-                \newpage
-              \fi
-              \if@tempswa
-                \twocolumn
-              \fi}
-%</amsldoc>
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\renewcommand\chapter{\par \@afterindentfalse
-                    \secdef\@chapter\@schapter}
-\def\@chapter[#1]#2{\ifnum \c@secnumdepth >\m@ne
-                       \if@mainmatter
-                         \refstepcounter{chapter}%
-                         \typeout{\@chapapp\space\thechapter.}%
-                         \addcontentsline{toc}{chapter}%
-                                   {\protect\numberline{\thechapter}#1}%
-                       \else
-                         \addcontentsline{toc}{chapter}{#1}\fi
-                    \else
-                      \addcontentsline{toc}{chapter}{#1}
-                    \fi
-                    \chaptermark{#1}%
-                    \addtocontents{lof}{\protect\addvspace{10\p@}}%
-                    \addtocontents{lot}{\protect\addvspace{10\p@}}%
-                    \if@twocolumn
-                      \@topnewpage[\@makechapterhead{#2}]%
-                    \else
-                      \@makechapterhead{#2}%
-                      \@afterheading
-                    \fi}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\@makechapterhead#1{%
-  \vspace{1.5\baselineskip}%
-  {\parindent \z@ \raggedright \reset@font
-    \ifnum \c@secnumdepth >\m@ne
-      \large\bfseries \@chapapp\space\thechapter
-      \par\nobreak
-      \vskip.5\baselineskip\relax
-    \fi
-    #1\par\nobreak
-    \vskip\baselineskip
-  }}
-\def\@schapter#1{\if@twocolumn
-                   \@topnewpage[\@makeschapterhead{#1}]%
-                 \else
-                   \@makeschapterhead{#1}%
-                   \@afterheading
-                 \fi}
-\def\@makeschapterhead#1{%
-  \vspace*{1.5\baselineskip}%
-  {\parindent \z@ \raggedright
-    \reset@font
-    \large \bfseries  #1\par\nobreak
-    \vskip\baselineskip
-  }}
-%    \end{macrocode}
-%
-%    Add Donald Arseneau's \cs{@removefromreset}; used to decouple the
-%    footnote counter from \cn{chapter}, since chapters here do not
-%    automatically start on a new page.  [bnb, 1999/09/27]
-%  \begin{verbatim}
-%    \@removefromreset{FOO}{BAR} : Removes counter FOO from the list of
-%                       counters \cl@BAR to be reset when counter BAR
-%                       is stepped.  The opposite of \@addtoreset.
-%  \end{verbatim}
-%    \begin{macrocode}
-\def\@removefromreset#1#2{\let\@tempb\@elt
-   \expandafter\let\expandafter\@tempa\csname c@#1\endcsname
-   \def\@elt##1{\expandafter\ifx\csname c@##1\endcsname\@tempa\else
-         \noexpand\@elt{##1}\fi}%
-   \expandafter\edef\csname cl@#2\endcsname{\csname cl@#2\endcsname}%
-   \let\@elt\@tempb}
-\@removefromreset{footnote}{chapter}
-%    \end{macrocode}
-%
-%    Change running head font to \cn{footnotesize}, nonslanted.
-%    \begin{macrocode}
-\def\ps@headings{%
-  \let\@oddfoot\@empty\let\@evenfoot\@empty
-  \def\@evenhead{\thepage\hfil{\footnotesize\leftmark{}{}}}%
-  \def\@oddhead{{\footnotesize\rightmark{}{}}\hfil\thepage}%
-  \let\@mkboth\markboth
-  \def\chaptermark##1{%
-    \markboth {\uppercase{\ifnum \c@secnumdepth >\m@ne
-      \if@mainmatter
-        \@chapapp\ \thechapter. \ \fi
-      \fi
-        ##1}}{}}%
-  \def\sectionmark##1{%
-    \markright {\uppercase{\ifnum \c@secnumdepth >\z@
-        \thesection. \ \fi
-        ##1}}}}
-%    \end{macrocode}
-%
-%
-% \section{\cls{amsdtx} style modifications for sectioning commands}
-%    These definitions for \cn{maketitle} are from \fn{article.cls}.
-%    \begin{macrocode}
-%<*amsdtx>
-\renewcommand\maketitle{\par
-  \begingroup
-    \renewcommand\thefootnote{\fnsymbol{footnote}}%
-    \def\@makefnmark{\hbox to\z@{$\m@th^{\@thefnmark}$\hss}}%
-    \long\def\@makefntext##1{\parindent 1em\noindent
-            \hbox to1.8em{\hss$\m@th^{\@thefnmark}$}##1}%
-    \if@twocolumn
-      \ifnum \col@number=\@ne
-        \@maketitle
-      \else
-        \twocolumn[\@maketitle]%
-      \fi
-    \else
-      \newpage
-      \global\@topnum\z@   % Prevents figures from going at top of page.
-      \@maketitle
-    \fi
-    \thispagestyle{plain}\@thanks
-  \endgroup
-  \setcounter{footnote}{0}%
-  \let\thanks\relax
-  \let\maketitle\relax\let\@maketitle\relax
-  \gdef\@thanks{}\gdef\@author{}\gdef\@title{}}
-%
-\def\@maketitle{%
-  \newpage
-  \null
-  \vskip 2em%
-  \begin{center}%
-    {\LARGE \@title \par}%
-    \vskip 1.5em%
-    {\large
-      \lineskip .5em%
-      \begin{tabular}[t]{c}%
-        \@author
-      \end{tabular}\par}%
-    \vskip 1em%
-    {\large \@date}%
-  \end{center}%
-  \par
-%    \end{macrocode}
-%    Put the title into both running heads.
-%    \begin{macrocode}
-  \uppercase\expandafter{\expandafter\toks@\expandafter{\@title}}%
-  \edef\@tempa{\noexpand\markboth{\the\toks@}{\the\toks@}}%
-  \@tempa
-  \vskip 1.5em}
-%</amsdtx>
-%    \end{macrocode}
-%
-%    Edit the table of contents.
-%    \begin{macrocode}
-%<*amsdtx>
-\renewcommand\tableofcontents{%
-    \if@twocolumn
-      \@restonecoltrue\onecolumn
-    \else
-      \@restonecolfalse
-    \fi
-    \subsection*{\contentsname}%
-    \@starttoc{toc}%
-    \if@restonecol\twocolumn\fi
-    }
-%</amsdtx>
-%    \end{macrocode}
-%
-%    Edit the sectioning commands.
-%    \begin{macrocode}
-\renewcommand\section{\@startsection {section}{1}{\z@}%
-                                   {-.6\baselineskip \@plus -3\p@}%
-                                   {.4\baselineskip}
-%<amsdtx>                          {\reset@font\Large\bfseries}}
-%<amsldoc>                         {\reset@font\normalsize\bfseries}}
-\renewcommand\subsection{\@startsection{subsection}{2}{\z@}%
-                                     {-.3\baselineskip\@plus -2\p@}%
-                                     {.2\baselineskip}%
-%<amsdtx>                          {\reset@font\large\bfseries}}
-%<amsldoc>                         {\reset@font\normalsize\bfseries}}
-\renewcommand\subsubsection{\@startsection{subsubsection}{3}{\z@}%
-                                     {-.2\baselineskip\@plus -2\p@}%
-                                     {.2\baselineskip}%
-                                     {\reset@font\normalsize\bfseries}}
-%    \end{macrocode}
-%    Change index environment to turn off \cn{autoindex}.
-%    \begin{macrocode}
-\renewenvironment{theindex}{%
-  \if@twocolumn \@restonecolfalse \else \@restonecoltrue \fi
-  \columnseprule \z@ \columnsep 35\p@
-  \let\autoindex\@gobble
-%<amsdtx>  \twocolumn[\section*{\indexname}]%
-%<amsldoc>  \twocolumn[\@makeschapterhead{\indexname}]%
-  \addcontentsline{toc}{chapter}{\indexname}%
-  \@mkboth{\uppercase{\indexname}}{\uppercase{\indexname}}%
-  \thispagestyle{plain}\parindent\z@
-  \parskip\z@ \@plus .3\p@\relax
-  \let\item\@idxitem
-}{%
-  \if@restonecol\onecolumn\else\clearpage\fi
-}
-%    \end{macrocode}
-%
-%    Take out \cn{thechapter} from \cn{thesection}.
-%    \begin{macrocode}
-%<amsdtx>\renewcommand{\thesection}{\arabic{section}}
-%    \end{macrocode}
-%
-%    Change the style of captions slightly. Also incorporate some
-%    caption improvements from Donald Arseneau (\fn{comp.text.tex}, 11
-%    Oct 1994).
-%    \begin{macrocode}
-\long\def\@makecaption#1#2{%
-  \addvspace\abovecaptionskip
-  \begingroup
-    \countdef\@parcycles=8 % local count register
-    \@parcycles\z@
-    \@setpar{\advance\@parcycles\@ne \ifnum\@parcycles>999
-      \@@par\@parcycles\z@\fi
-      \ifhmode \unskip\hskip\parfillskip\penalty-\@M\fi}%
-    \@hangfrom{\textbf{#1.} }\vadjust{\penalty\m@ne}#2%
-  \endgroup
-  \ifhmode\unpenalty\fi\par
-  \ifnum\lastpenalty=\m@ne % only one line in the caption
-    \unpenalty \setbox\@tempboxa\lastbox
-    \nointerlineskip
-    \hbox to\hsize{\hfill\unhbox\@tempboxa\unskip\hfill}%
-  \fi
-  \nobreak\vskip\belowcaptionskip
-}
-%    \end{macrocode}
-%    For table captions, assume top captions and so put space below the
-%    caption rather than above:
-%    \begin{macrocode}
-\renewenvironment{table}{%
-  \belowcaptionskip\abovecaptionskip \abovecaptionskip\z@skip
-  \@float{table}%
-}{%
-  \end@float
-}
-\renewenvironment{table*}{%
-  \belowcaptionskip\abovecaptionskip \abovecaptionskip\z@skip
-  \@dblfloat{table}%
-}{%
-  \end@dblfloat
-}
-%    \end{macrocode}
-%
-% \section{Float placement parameters}
-%    These control the placing of floating objects like tables and
-%    figures. The values here, which are much more tolerant than the
-%    \latex/ defaults, are more or less copied from \fn{amsclass.dtx}.
-%    \begin{macrocode}
-\setcounter{topnumber}{4}\setcounter{bottomnumber}{4}
-\setcounter{totalnumber}{4}\setcounter{dbltopnumber}{4}
-\renewcommand{\topfraction}{.97}\renewcommand{\bottomfraction}{.97}
-\renewcommand{\textfraction}{.03}\renewcommand{\floatpagefraction}{.9}
-\renewcommand{\dbltopfraction}{.97}
-\renewcommand{\dblfloatpagefraction}{.9}
-\setlength{\floatsep}{8pt plus6pt}
-\setlength{\textfloatsep}{10pt plus8pt}
-\setlength{\intextsep}{8pt plus6pt}
-\setlength{\dblfloatsep}{8pt plus6pt}
-\setlength{\dbltextfloatsep}{10pt plus8pt}
-\setlength{\@fptop}{0pt}\setlength{\@fpsep}{8pt}%
-\setlength{\@fpbot}{0pt plus 1fil}
-\setlength{\@dblfptop}{0pt}\setlength{\@dblfpsep}{8pt}%
-\setlength{\@dblfpbot}{0pt plus 1fil}
-%    \end{macrocode}
-
-%    \begin{macrocode}
-\pagestyle{headings}
-%    \end{macrocode}
-%
-%    Make \verb"|...|" shorthand for verbatim fragments. In the case of
-%    the \cls{amsldoc} class, we avoid requiring an extra package
-%    (\pkg{doc} or \pkg{shortvrb}), to reduce the possibility of package
-%    files not being found at run time.
-%    \begin{macrocode}
-%<*amsldoc>
-\AtBeginDocument{\catcode`\|=\active }
-\def\activevert{\verb|}
-\expandafter\gdef\expandafter\dospecials\expandafter
-  {\dospecials \do\|}%
-\expandafter\gdef\expandafter\@sanitize\expandafter
-  {\@sanitize \@makeother\|}
-\begingroup\catcode`\|=\active \gdef|{\protect\activevert{}}\endgroup
-%</amsldoc>
-%    \end{macrocode}
-%
-%  \begin{macro}{\arrayargpatch}
-%    If the column-specs arg of array or tabular contains a vert bar
-%    character, and we have made vert bars active, it will cause
-%    trouble. The following command, used in the ctab environment,
-%    prevents the trouble.
-%    \begin{macrocode}
-\newcommand{\arrayargpatch}{%
-  \let\@oldarray\@array
-  \edef\@array[##1]##2{\catcode\number`\|=\number\catcode`\|
-    \catcode\number`\@=\number\catcode`\@ \relax
-    \let\noexpand\@array\noexpand\@oldarray
-    \noexpand\@array[##1]{##2}}%
-  \catcode`\|=12 \catcode`\@=12 \relax
-}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{environment}{ctab}
-%    An environment for centered tables.
-%    \begin{macrocode}
-\newenvironment{ctab}{%
-  \par\topsep\medskipamount
-  \trivlist\centering
-  \item[]%
-  \arrayargpatch
-  \begin{tabular}%
-}{%
-  \end{tabular}%
-  \endtrivlist
-}
-%    \end{macrocode}
-%  \end{environment}
-%
-%    Load \pkg{doc} package, reset \cn{AltMacroFont} to be the same as
-%    \cn{MacroFont} (when there are large sections of conditional
-%    code I think it looks better not to have it all slanted).
-%    \begin{macrocode}
-%<*amsdtx>
-\RequirePackage{doc}
-\def\AltMacroFont{\MacroFont}
-%    \end{macrocode}
-%
-%    \begin{macro}{\SpecialMainEnvIndex}
-%    Override \fn{doc.sty}'s main environment indexing to get rid of
-%    the parens around ``environment'', for compatibility with our
-%    \cs{env} command.
-%    \begin{macrocode}
-\def\SpecialMainEnvIndex#1{%
-    \@bsphack
-    \special@index{%
-        #1\actualchar\string\texttt{#1} environment\encapchar main%
-    }%
-    \special@index{%
-        environments:\levelchar#1%
-        \actualchar\string\texttt{#1}%
-        \encapchar main}%
-    \@esphack
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \begin{macro}{\SpecialEnvIndex}
-%    \begin{macrocode}
-\def\SpecialEnvIndex#1{%
-    \@bsphack
-    \index{#1\actualchar\string\texttt{#1} environment\encapchar usage}%
-    \index{%
-        environments:\levelchar#1%
-        \actualchar\string\texttt{#1}%
-        \encapchar usage}%
-    \@esphack
-}
-%    \end{macrocode}
-% \end{macro}
-%
-%    \begin{macro}{\DescribeOption}
-%    \begin{macrocode}
-\def\DescribeOption{%
-    \leavevmode
-    \@bsphack
-    \begingroup
-        \MakePrivateLetters
-    \Describe@Option
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\Describe@Option}
-%    \begin{macrocode}
-\def\Describe@Option#1{%
-    \endgroup
-    \marginpar{\raggedleft\PrintDescribeOption{#1}}%
-    \SpecialOptionIndex{#1}%
-    \@esphack
-    \ignorespaces
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintDescribeOption}
-%    \begin{macrocode}
-\def\PrintDescribeOption#1{\strut \MacroFont #1\ }
-%    \end{macrocode}
-%    \end{macro}
-%
-% \begin{macro}{\option}
-%    \begin{macrocode}
-\def\option{%
-    \let\SpecialMainEnvIndex\SpecialMainOptionIndex
-\begingroup
-   \catcode`\\12
-   \MakePrivateLetters \m@cro@ \iffalse}
-%    \end{macrocode}
-% \end{macro}
-%
-%    \begin{macro}{\SpecialMainOptionIndex}
-%    \begin{macrocode}
-\def\SpecialMainOptionIndex#1{%
-    \@bsphack
-    \special@index{#1\actualchar\string\texttt{#1} option\encapchar main}%
-    \@esphack
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \begin{macro}{\SpecialOptionIndex}
-%    \begin{macrocode}
-\def\SpecialOptionIndex{\@category@index{option}}
-%    \end{macrocode}
-% \end{macro}
-%
-%    Ordinary \cn{DocInput} doesn't handle standardized file headers
-%    unless you enclose them in \cs{iffalse} \dots\ \cs{fi} which I
-%    don't care to do. So instead here's an alternate version of
-%    \cn{DocInput}, called \cn{hDocInput}.
-%    \begin{macrocode}
-\def\hDocInput#1{\MakePercentIgnore
-  \begingroup
-%    \end{macrocode}
-%    Define active \qc{\@} which should be the first non-percent,
-%    non-equal-sign character when a file header is present. (If a file
-%    header is not present, \cn{hDocInput} should not be used.)
-%    \begin{macrocode}
-  \begingroup \lccode`\~=`\@
-  \lowercase{\endgroup\long\def ~}##1##{%
-    \catcode`\==12 \skipfileheader{##1}}%
-  \catcode`\@=\active \catcode`\==14 % comment
-  \def\filename{#1}%
-  \@@input#1 \MakePercentComment}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\skipfileheader#1#2 {\endgroup
-  \hGetFileInfo#2 version = "??" date = "??"\@nil
-  \begingroup\catcode`\==9 \catcode`\ =9 \futurelet\0\endgroup
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\long\def\hGetFileInfo#1 version = "#2"#3 date = "#4"#5\@nil{%
-  \def\fileversion{#2}\def\filedate{#4}}
-%</amsdtx>
-%    \end{macrocode}
-%
-%    A bunch of stuff we don't want in code indexes:
-%    \begin{macrocode}
-%<*amsdtx>
-\DoNotIndex{\@xp,\@nx,\@empty,\newcommand,\renewcommand}
-\DoNotIndex{\newenvironment,\renewenvironment,\providecommand}
-\DoNotIndex{\if,\fi,\ifnum,\fi,\@let@token,\futurelet,\fsa@n}
-\DoNotIndex{\ignorespaces,\@tempcnta,\@tempcntb,\count@}
-\DoNotIndex{\toks@,\@ne,\advance}
-\DoNotIndex{\!,\/,\?,\@,\^,\_}
-\DoNotIndex{\@@par,\@M,\@auxout,\@bsphack,\@esphack,\@depth,\@ehc}
-\DoNotIndex{\@for,\@flushglue,\@gobble,\@gobbletwo,\@height,\@idxitem}
-\DoNotIndex{\@ifnextchar,\@ifstar,\@ifundefined,\@input,\@latexerr}
-\DoNotIndex{\@makeschapterhead,\@namedef,\@nameuse,\@nil}
-\DoNotIndex{\@nobreakfalse,\@restonecolfalse,\@restonecoltrue}
-\DoNotIndex{\@tempa,\@tempb,\@tempc,\@tempf,\@temptokena,\@themark,\@width}
-\DoNotIndex{\active,\aindex,\baselineskip,\begin,\begingroup,\box}
-\DoNotIndex{\c@page,\catcode,\chapter,\char,\chardef,\closeout}
-\DoNotIndex{\CodelineIndex,\sp,\sb,\label,\leavevmode,\mark}
-\DoNotIndex{\mark,\newinsert,\newwrite,\newtoks,\xdef}
-\DoNotIndex{\columnsep,\columnseprule,\columnwidth,\csname,\def}
-\DoNotIndex{\dimen,\do,\DocInput,\documentstyle,\edef,\em}
-\DoNotIndex{\EnableCrossrefs,\end,\endcsname,\endgroup,\endinput}
-\DoNotIndex{\everypar,\expandafter,\filedate,\fileversion}
-\DoNotIndex{\footnotesize,\gdef,\global,\glossary,\hangindent}
-\DoNotIndex{\if@filesw,\else,\fi}
-\DoNotIndex{\if@nobreak,\if@twocolumn,\if@twoside,\fi,\fi,\fi}
-\DoNotIndex{\hsize,\hskip}
-\DoNotIndex{\ifhmode,\ifmmode,\ifodd,\ifvmode,\ifx,\fi,\fi,\fi,\fi,\fi}
-\DoNotIndex{\ifcase,\ifdim,\ifeof,\iffalse,\iftrue,\fi,\fi,\fi,\fi,\fi}
-\DoNotIndex{\ifcat,\fi}
-\DoNotIndex{\immediate,\insert,\item,\jobname,\long}
-\DoNotIndex{\let,\lineskip,\marginparsep,\marginparwidth,\maxdimen}
-\DoNotIndex{\makeatletter,\noexpand,\openout,\protect,\rlap}
-\DoNotIndex{\min,\newpage,\nobreak,\normalbaselineskip}
-\DoNotIndex{\normallineskip,\p@,\par,\parfillskip,\parindent,\parskip}
-\DoNotIndex{\penalty,\relax,\section,\sin,\sloppy,\space,\string}
-\DoNotIndex{\tableofcontents,\the,\thepage,\thispagestyle,\toks,\tt}
-\DoNotIndex{\twocolumn,\uppercase,\vbox,\vrule,\vskip,\vss}
-\DoNotIndex{\write,\z@,\z@skip}
-%</amsdtx>
-%    \end{macrocode}
-%
-%    The usual \cs{endinput} to ensure that random garbage at the end of
-%    the file doesn't get copied by \fn{docstrip}.
-%    \begin{macrocode}
-\endinput
-%    \end{macrocode}
-%
-% \changes{v1.2b}{1995/02/15}{Added {}{} after rightmark, leftmark to
-%   handle no-maketitle case}
-% \changes{v1.2b}{1995/02/15}{Added frenchspacing in error env heading}
-%
-% \changes{v1.2c}{1996/10/28}{Update version number, date for new release}
-%
-% \changes{v1.2d}{1997/03/13}{Fixed up loading method for OT1cmtt fd file}
-%
-% \changes{v2.03}{2004/04/06}{Reworked indexing commands for
-%    compatibility with doc.sty}
-%
-% \changes{v2.04}{2004/04/07}{Further work on indexing commands for
-% compatibility with macro and environment environments in \fn{doc.sty}.
-% Also added \env{option} environment, \cs{DescribeOption},
-% \cs{PrintDescribeOption}, \cs{SpecialOptionIndex}, and
-% \cs{SpecialMainOptionIndex}.}
-%
-% \changes{v2.05}{2004/04/27}{Fixed the amsdtx \cs{env} so that it
-% prints its argument in addition to putting it in the index.  Added
-% |\penalty\exhyphenpenalty| to \cs{mdash} and \cs{ndash} as per
-% \pkg{textcmds}.}
-%
-% \CheckSum{1516}
-% \Finale
diff --git a/Master/texmf-dist/source/latex/amslatex/amsgen.dtx b/Master/texmf-dist/source/latex/amslatex/amsgen.dtx
deleted file mode 100644
index dddaadd9af8..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/amsgen.dtx
+++ /dev/null
@@ -1,396 +0,0 @@
-%%% ====================================================================
-%%%  @LaTeX-file{
-%%%     filename  = "amsgen.dtx",
-%%%     version   = "2.0",
-%%%     date      = "1999/11/30",
-%%%     time      = "12:33:33 EST",
-%%%     author    = "American Mathematical Society",
-%%%     copyright = "Copyright 1995, 1999 American Mathematical Society,
-%%%                  all rights reserved.  Copying of this file is
-%%%                  authorized only if either:
-%%%                  (1) you make absolutely no changes to your copy,
-%%%                  including name; OR
-%%%                  (2) if you do make changes, you first rename it
-%%%                  to some other name.",
-%%%     address   = "American Mathematical Society,
-%%%                  Technical Support,
-%%%                  Electronic Products and Services,
-%%%                  P. O. Box 6248,
-%%%                  Providence, RI 02940,
-%%%                  USA",
-%%%     telephone = "401-455-4080 or (in the USA and Canada)
-%%%                  800-321-4AMS (321-4267)",
-%%%     FAX       = "401-331-3842",
-%%%     checksum  = "07569 396 1613 14368",
-%%%     email     = "tech-support@ams.org (Internet)",
-%%%     codetable = "ISO/ASCII",
-%%%     keywords  = "latex, amslatex, ams-latex",
-%%%     supported = "yes",
-%%%     abstract  = "This is part of the AMS-\LaTeX{} distribution.
-%%%                  It contains some general internal macros shared
-%%%                  by several different files in AMS-\LaTeX{}.",
-%%%     docstring = "The checksum field above contains a CRC-16
-%%%                  checksum as the first value, followed by the
-%%%                  equivalent of the standard UNIX wc (word
-%%%                  count) utility output of lines, words, and
-%%%                  characters.  This is produced by Robert
-%%%                  Solovay's checksum utility.",
-%%%  }
-%%% ====================================================================
-% \iffalse
-%<*driver>
-\documentclass{amsdtx}
-\begin{document}
-\title{The \pkg{amsgen} package}
-\author{American Mathematical Society\\Michael Downes}
-\date{Version \fileversion, \filedate}
-\hDocInput{amsgen.dtx}
-\end{document}
-%</driver>
-% \fi
-%
-% \maketitle
-%
-% \MakeShortVerb\|
-%
-% \section{Introduction}
-%    This is an internal package for storing common functions
-%    that are shared by more than one package in the \amslatex/
-%    distribution. Some of these might eventually make it into the \latex/
-%    kernel.
-%
-% \StopEventually{}
-%
-%    Standard package info.
-%    Using \cs{ProvidesFile} rather than \cs{ProvidesPackage} because
-%    the latter, when input by, e.g, \cls{amsbook}, results in
-%    \texttt{LaTeX warning: You have requested document class `amsbook',
-%    but the document class provides `amsgen'.}
-%    \begin{macrocode}
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1994/12/01]% LaTeX date must December 1994 or later
-\ProvidesFile{amsgen.sty}[1999/11/30 v2.0]
-%    \end{macrocode}
-%
-% \section{Implementation}
-%    Some general macros shared by \fn{amsart.dtx}, \fn{amsmath.dtx},
-%    \fn{amsfonts.dtx}, \dots
-%
-% \begin{macro}{\@saveprimitive}
-%    The \pkg{amsmath} package redefines a number of \tex/ primitives.
-%    In case some preceding package also decided to redefine one of
-%    those same primitives, we had better do some checking to make
-%    sure that we are able to save the primitive meaning for internal
-%    use. This is handled by the \cs{@saveprimitive} function. We
-%    follow the example of \cs{@@input} where the primitive meaning is
-%    stored in an internal control sequence with a |@@| prefix.
-%    Primitive control sequences can be distinguished by the fact that
-%    \cs{string} and \cs{meaning} return the same information.
-%    \begin{macrocode}
-\providecommand{\@saveprimitive}[2]{\begingroup\escapechar`\\\relax
-  \edef\@tempa{\string#1}\edef\@tempb{\meaning#1}%
-  \ifx\@tempa\@tempb \global\let#2#1%
-  \else
-%    \end{macrocode}
-%    Check to see if \arg{2} was already given the desired primitive
-%    meaning somewhere else.
-%    \begin{macrocode}
-    \edef\@tempb{\meaning#2}%
-    \ifx\@tempa\@tempb
-    \else
-      \@latex@error{Unable to properly define \string#2; primitive
-      \noexpand#1no longer primitive}\@eha
-    \fi
-  \fi
-  \endgroup}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\@xp}
-% \begin{macro}{\@nx}
-%    Shorthands for long command names.
-%    \begin{macrocode}
-\let\@xp=\expandafter
-\let\@nx=\noexpand
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%
-%  \begin{macro}{\@emptytoks}
-%    A token register companion for \cs{@empty}. Saves a little main mem and
-%    probably makes initializations such as |\toks@{}| run faster too.
-%    \begin{macrocode}
-\newtoks\@emptytoks
-%    \end{macrocode}
-%  \end{macro}
-%
-% \begin{macro}{\@oparg}
-%    Use of \cs{@oparg} simplifies some constructions where a macro
-%    takes an optional argument in square brackets. We can't use
-%    \cn{newcommand} here because this function might be previously
-%    defined by the \pkg{amsmath} package in a loading sequence such as
-% \begin{verbatim}
-% \usepackage{amsmath,amsthm}
-% \end{verbatim}
-%    \begin{macrocode}
-\def\@oparg#1[#2]{\@ifnextchar[{#1}{#1[#2]}}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\@ifempty}
-% \begin{macro}{\@ifnotempty}
-%    |\@ifnotempty| and |\@ifempty| use category 11 |@| characters to
-%    test whether the argument is empty or not, since these are highly
-%    unlikely to occur in the argument. As with \cn{@oparg}, there is a
-%    possibility that these commands were defined previously in
-%    \fn{amsmath.sty}.
-%    \begin{macrocode}
-\long\def\@ifempty#1{\@xifempty#1@@..\@nil}
-\long\def\@xifempty#1#2@#3#4#5\@nil{%
-  \ifx#3#4\@xp\@firstoftwo\else\@xp\@secondoftwo\fi}
-%    \end{macrocode}
-%    \cs{@ifnotempty} is a shorthand that makes code read better when
-%    no action is needed in the empty case. At a cost of double
-%    argument-reading---so for often-executed code, avoiding
-%    \cs{@ifnotempty} might be wise.
-%    \begin{macrocode}
-\long\def\@ifnotempty#1{\@ifempty{#1}{}}
-%    \end{macrocode}
-% \end{macro}
-% \end{macro}
-%
-%    Some abbreviations to conserve token mem.
-%    \begin{macrocode}
-\def\FN@{\futurelet\@let@token}
-\def\DN@{\def\next@}
-\def\RIfM@{\relax\ifmmode}
-\def\setboxz@h{\setbox\z@\hbox}
-\def\wdz@{\wd\z@}
-\def\boxz@{\box\z@}
-\def\relaxnext@{\let\@let@token\relax}
-%    \end{macrocode}
-%
-% \begin{macro}{\new@ifnextchar}
-%    This macro is a new version of \latex/'s \verb+\@ifnextchar+,
-%    macro that does not skip over spaces.
-%    \begin{macrocode}
-\long\def\new@ifnextchar#1#2#3{%
-%    \end{macrocode}
-%    By including the space after the equals sign, we make it possible
-%    for \cs{new@ifnextchar} to do look-ahead for any token, including a
-%    space!
-%    \begin{macrocode}
-  \let\reserved@d= #1%
-  \def\reserved@a{#2}\def\reserved@b{#3}%
-  \futurelet\@let@token\new@ifnch
-}
-%
-\def\new@ifnch{%
-  \ifx\@let@token\reserved@d \let\reserved@b\reserved@a \fi
-  \reserved@b
-}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\@ifstar}
-%    There will essentially never be a space before the \qc{\*}, so
-%    using \cs{@ifnextchar} is unnecessarily slow.
-%    \begin{macrocode}
-\def\@ifstar#1#2{\new@ifnextchar *{\def\reserved@a*{#1}\reserved@a}{#2}}
-%    \end{macrocode}
-% \end{macro}
-%
-%    The hook \cs{every@size} was changed to \cs{every@math@size} in the
-%    December 1994 release of \latex/ and its calling procedures changed.
-%    If \cs{every@math@size} is undefined it means the user has an older
-%    version of \latex/ so we had better define it and patch a couple of
-%    functions (\cs{glb@settings} and \cs{set@fontsize}).
-%    \begin{macrocode}
-\@ifundefined{every@math@size}{%
-%    \end{macrocode}
-%    Reuse the same token register; since it was never used except for
-%    the purposes that are affected below, this is OK.
-%    \begin{macrocode}
-\let\every@math@size=\every@size
-\def\glb@settings{%
-     \expandafter\ifx\csname S@\f@size\endcsname\relax
-       \calculate@math@sizes
-     \fi
-     \csname S@\f@size\endcsname
-      \ifmath@fonts
-%       \ifnum \tracingfonts>\tw@
-%          \@font@info{Setting up math fonts for
-%                  \f@size/\f@baselineskip}\fi
-        \begingroup
-          \escapechar\m@ne
-          \csname mv@\math@version \endcsname
-          \globaldefs\@ne
-          \let \glb@currsize \f@size
-          \math@fonts
-        \endgroup
-        \the\every@math@size
-      \else
-%       \ifnum \tracingfonts>\tw@
-%        \@font@info{No math setup for \f@size/\f@baselineskip}%
-%       \fi
-      \fi
-}
-%    \end{macrocode}
-%    Remove |\the\every@size| from \cs{size@update}.
-%    \begin{macrocode}
-\def\set@fontsize#1#2#3{%
-    \@defaultunits\@tempdimb#2pt\relax\@nnil
-    \edef\f@size{\strip@pt\@tempdimb}%
-    \@defaultunits\@tempskipa#3pt\relax\@nnil
-    \edef\f@baselineskip{\the\@tempskipa}%
-    \edef\f@linespread{#1}%
-    \let\baselinestretch\f@linespread
-      \def\size@update{%
-        \baselineskip\f@baselineskip\relax
-        \baselineskip\f@linespread\baselineskip
-        \normalbaselineskip\baselineskip
-        \setbox\strutbox\hbox{%
-          \vrule\@height.7\baselineskip
-                \@depth.3\baselineskip
-                \@width\z@}%
-%%%     \the\every@size
-        \let\size@update\relax}%
-  }
-}{}% end \@ifundefined test
-%    \end{macrocode}
-%
-% \begin{macro}{\ex@}
-%    The \cs{ex@} variable provides a small unit of space for use in
-%    math-mode constructions, that varies according to the current type
-%    size. For example, the \cn{pmb} command uses \cs{ex@} units.
-%    Since a macro or mu unit solution for the \meta{dimen} \cs{ex@} won't
-%    work without changing a lot of current code in the \pkg{amsmath}
-%    package, we set \cs{ex@} through the \cs{every@math@size} hook.
-%    The value of \cs{ex@} is scaled nonlinearly in a range of roughly
-%    0.5pt to 1.5pt, by the function \cs{compute@ex@}.
-%    \begin{macrocode}
-\newdimen\ex@
-\addto@hook\every@math@size{\compute@ex@}
-%    \end{macrocode}
-% \end{macro}
-%
-%    \cs{compute@ex@} computes \cs{ex@} as a nonlinear scaling from 10pt
-%    to current font size (\cs{f@size}). Using .97 as the multiplier makes 1
-%    |ex@| $\approx$ .9pt when the current type size is 8pt and 1 |ex@|
-%    $\approx$ 1.1pt when the current type size is 12pt.
-%
-%    The formula is essentially
-% \begin{displaymath}
-% \newcommand{\points}{\mbox{pt}}
-% \newcommand{\floor}[1]{\lfloor#1\rfloor}
-%      1\points \pm (1\points - (.97)^{\floor{\vert 10 - n\vert}})
-% \end{displaymath}
-%    where $n$ = current type size, but adjusted to differentiate
-%    half-point sizes as well as whole point sizes, and there is a
-%    cutoff for extraordinarily large values of \cs{f@size} ($>$ 20pt)
-%    so that the value of \cs{ex@} never exceeds 1.5pt.
-%
-%    \begin{macrocode}
-\def\compute@ex@{%
-  \begingroup
-  \dimen@-\f@size\p@
-  \ifdim\dimen@<-20\p@
-%    \end{macrocode}
-%    Never make \cs{ex@} larger than 1.5pt.
-%    \begin{macrocode}
-    \global\ex@ 1.5\p@
-  \else
-%    \end{macrocode}
-%    Adjust by the reference size and multiply by 2 to allow for
-%    half-point sizes.
-%    \begin{macrocode}
-    \advance\dimen@10\p@ \multiply\dimen@\tw@
-%    \end{macrocode}
-%    Save information about the current sign of \cs{dimen@}.
-%    \begin{macrocode}
-    \edef\@tempa{\ifdim\dimen@>\z@ -\fi}%
-%    \end{macrocode}
-%    Get the absolute value of \cs{dimen@}.
-%    \begin{macrocode}
-    \dimen@ \ifdim\dimen@<\z@ -\fi \dimen@
-    \advance\dimen@-\@m sp % fudge factor
-%    \end{macrocode}
-%    Here we use \cs{vfuzz} merely as a convenient scratch register
-%    \begin{macrocode}
-    \vfuzz\p@
-%    \end{macrocode}
-%    Multiply in a loop.
-%    \begin{macrocode}
-    \def\do{\ifdim\dimen@>\z@
-      \vfuzz=.97\vfuzz
-      \advance\dimen@ -\p@
-%\message{\vfuzz: \the\vfuzz, \dimen@: \the\dimen@}%
-      \@xp\do \fi}%
-    \do
-    \dimen@\p@ \advance\dimen@-\vfuzz
-    \global\ex@\p@
-    \global\advance\ex@ \@tempa\dimen@
-  \fi
-  \endgroup
-%\typeout{\string\f@size: \f@size}\showthe\ex@
-}
-%    \end{macrocode}
-%    Tests of the \cs{compute@ex@} function yield the following results:
-%
-% \begin{center}\begin{tabular}{rlrl}
-%    \cs{f@size}& \cs{ex@}&   \cs{f@size}& \cs{ex@}\\
-%    10&          1.0pt&      9&           0.94089pt\\
-%    11&          1.05911pt&  8.7&         0.91266pt\\
-%    12&          1.11473pt&  8.5&         0.91266pt\\
-%    14.4&        1.23982pt&  8.4&         0.88527pt\\
-%    17.28&       1.36684pt&  8&           0.88527pt\\
-%    20.74&       1.5pt&      7&           0.83293pt\\
-%    19.5&        1.4395pt&   6&           0.78369pt\\
-%                       &&    5&           0.73737pt\\
-%                       &&    1&           0.57785pt
-% \end{tabular}\end{center}
-%
-%  \begin{macro}{\@addpunct}
-%    Use of the \cs{@addpunct} function allows ending punctuation in
-%    section headings and elsewhere to be intelligently omitted
-%    when punctuation is already present.
-%    \begin{macrocode}
-\def\@addpunct#1{\ifnum\spacefactor>\@m \else#1\fi}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{\frenchspacing}
-%    Change \cn{frenchspacing} to ensure that \cs{@addpunct} will
-%    continue to work properly even when `french' spacing is in effect.
-%    \begin{macrocode}
-\def\frenchspacing{\sfcode`\.1006\sfcode`\?1005\sfcode`\!1004%
-  \sfcode`\:1003\sfcode`\;1002\sfcode`\,1001 }
-%    \end{macrocode}
-%  \end{macro}
-%
-% \subsection{Miscellaneous}
-%    \begin{macrocode}
-\def\nomath@env{\@amsmath@err{%
-  \string\begin{\@currenvir} allowed only in paragraph mode%
-}\@ehb% "You've lost some text"
-}
-%    \end{macrocode}
-%     A trade-off between main memory space and hash size; using
-%     \verb+\Invalid@@+ saves 14 bytes of main memory for each use of
-%     \verb+\Invalid@+, at the cost of one control sequence name.
-%     \verb+\Invalid@+ is currently used about five times and
-%     \verb+\Invalid@@+ is used by itself in some other instances,
-%     which means that it saves us more memory than \verb+\FN@+,
-%     \verb+\RIfM@+, and some of the other abbreviations above.
-%    \begin{macrocode}
-\def\Invalid@@{Invalid use of \string}
-%    \end{macrocode}
-%
-%    The usual \cs{endinput} to ensure that random garbage at the end of
-%    the file doesn't get copied by \fn{docstrip}.
-%    \begin{macrocode}
-\endinput
-%    \end{macrocode}
-%
-% \CheckSum{337}
-% \Finale
diff --git a/Master/texmf-dist/source/latex/amslatex/amsmath.dtx b/Master/texmf-dist/source/latex/amslatex/amsmath.dtx
deleted file mode 100644
index 9810bc283f0..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/amsmath.dtx
+++ /dev/null
@@ -1,5829 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsmath.dtx",
-%%%   version   = "2.13",
-%%%   date      = "2000/07/18",
-%%%   time      = "08:16:41 EDT",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995, 2000 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Publications Technical Group,
-%%%                P. O. Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   checksum  = "38084 5829 21569 202795",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, amslatex, math, amsmath",
-%%%   supported = "yes",
-%%%   abstract  = "This is a \LaTeX{} package that provides a variety of
-%%%                extra mathematical features, largely derived from
-%%%                AMS-\TeX{}.",
-%%%   docstring = "The checksum field above contains a CRC-16 checksum
-%%%                as the first value, followed by the equivalent of
-%%%                the standard UNIX wc (word count) utility output of
-%%%                lines, words, and characters.  This is produced by
-%%%                Robert Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-%
-%\iffalse
-%<*driver>
-\documentclass{amsdtx}
-\raggedbottom
-\begin{document}
-\title{The \pkg{amsmath} package}
-\author{Frank Mittelbach\and Rainer Sch\"opf\and Michael Downes\and
-  David M. Jones}
-\date{Version \fileversion, \filedate}
-\providecommand{\histnote}{}
-\renewenvironment{histnote}{%
-  \trivlist\item[\hspace{\labelsep}\bfseries Historical Note:]%
-}{%
-  \endtrivlist
-}
-\hDocInput{amsmath.dtx}
-\end{document}
-%</driver>
-%\fi
-%
-% \maketitle
-%
-% \MakeShortVerb\|
-%
-% \section{Introduction}
-%
-%    A \latex/ package named \pkg{amstex} was created in 1988--1989 by
-%    adapting \fn{amstex.tex} for use within \latex/. The \pkg{amsmath}
-%    package is the successor of the \pkg{amstex} package. It was
-%    substantially overhauled to integrate it with \latex/2e, which
-%    arrived on the scene in 1994. It provides more or less the same
-%    features, but there are quite a few organizational differences as
-%    well as some new features and bug fixes. For example, the
-%    \pkg{amstex} package automatically loaded the \pkg{amsfonts}
-%    package, but the \pkg{amsmath} package does not. At the present
-%    time (November 1999) user-level documentation of the commands
-%    provided here is found in the AMSmath Users' Guide,
-%    \fn{amsldoc.tex}.
-%
-% \StopEventually{}
-%
-%    Standard file identification.
-%    \begin{macrocode}
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1994/12/01]% LaTeX date must be December 1994 or later
-\ProvidesPackage{amsmath}[2000/07/18 v2.13 AMS math features]
-%    \end{macrocode}
-%
-% \section{Catcode defenses}
-%
-%    Some packages change the catcode of characters that are essential
-%    in low-level \tex/ syntax. Any package that does so does not
-%    qualify as a PWWO package (\qq{Plays Well With Others}) because it
-%    can cause other packages to fail if they are loaded later. \LaTeX{}
-%    is partly to blame for this because it fails to provide adequate
-%    built-in safeguards in the package loading mechanisms. In the
-%    absence of such safeguards, we will provide them here.
-%    \begin{macrocode}
-\edef\@temp{\catcode 96=\number\catcode 96 }
-\catcode\string `\`=12
-\def\do#1{\catcode\number`#1=\number\catcode`#1}
-\edef\@temp{%
-  \noexpand\AtEndOfPackage{%
-    \@temp
-    \do\"\do\'\do\(\do\)\do\*\do\+\do\,\do\-\do\.%
-    \do\/\do\<\do\=\do\>\do\[\do\]\do\^\do\_\relax
-  }%
-}
-\@temp
-\def\do#1{\catcode\number`#1=12 }
-\do\"\do\'\do\(\do\)\do\*\do\+\do\,\do\-\do\.
-\do\/\do\<\do\=\do\>\do\[\do\]
-\catcode`\^=7 \catcode`\_=8
-%    \end{macrocode}
-%
-% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% \section{Declare some options}
-%
-%    Handling of limits on integrals, sums, operatornames.
-%    \begin{macrocode}
-\DeclareOption{intlimits}{\let\ilimits@\displaylimits}
-\DeclareOption{nointlimits}{\let\ilimits@\nolimits}
-\DeclareOption{sumlimits}{\let\slimits@\displaylimits}
-\DeclareOption{nosumlimits}{\let\slimits@\nolimits}
-\DeclareOption{namelimits}{\PassOptionsToPackage{namelimits}{amsopn}}
-\DeclareOption{nonamelimits}{%
-  \PassOptionsToPackage{nonamelimits}{amsopn}}
-%    \end{macrocode}
-%
-%    The following two switches might have been defined already by the
-%    documentclass, but it doesn't hurt to re-execute the \cs{newif}'s.
-%    \begin{macrocode}
-\newif\ifctagsplit@
-\newif\iftagsleft@
-%    \end{macrocode}
-%    Right or left placement of equation numbers.
-%    \begin{macrocode}
-\DeclareOption{leqno}{\tagsleft@true}
-\DeclareOption{reqno}{\tagsleft@false}
-\DeclareOption{centertags}{\ctagsplit@true}
-\DeclareOption{tbtags}{\ctagsplit@false}
-%    \end{macrocode}
-%
-%    The \opt{cmex10} option is an escape hatch for people who don't
-%    happen to have sizes 7--9 of the \fn{cmex} fonts available to them
-%    yet. (Strictly speaking they are considered part of a minimum
-%    \latex/ distribution now, i.e., all \LaTeXe{} users should have
-%    them, without needing to get the AMSFonts distrib.)
-%    \begin{macrocode}
-\DeclareOption{cmex10}{%
-  \ifnum\cmex@opt=\@ne \def\cmex@opt{0}%
-  \else \def\cmex@opt{10}\fi
-}
-%    \end{macrocode}
-%    To help things work out better with various package loading orders
-%    of \pkg{amsmath} and \pkg{amsfonts}, we establish a variable to
-%    communicate the status of the cmex font definition. If the
-%    \pkg{amsfonts} package was loaded first this variable might be
-%    already defined, in which case we want to preserve its value.
-%    \begin{macrocode}
-\@ifundefined{cmex@opt}{\def\cmex@opt{7}}{}
-%    \end{macrocode}
-%
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% \section{Flush-left equations [DMJ]}
-%
-%    The left margin of math enviroments is controlled by
-%    \cs{@mathmargin}.  This can be set to \cs{@centering} to
-%    implement the default behaviour, i.e., centered equations, and to
-%    something else to implement the flushleft style.
-%
-%    In theory, all that's needed to activate the flushleft mode
-%    in the AMS document classes is something like this:
-% \begin{verbatim}
-% \DeclareOption{fleqn}{%
-%   \AtBeginDocument{\@mathmargin30pt\relax}%
-% }
-% \end{verbatim}
-%    (In fact, unless the document class wants to specify the
-%    \cs{@mathmargin}, it doesn't need to do anything with the
-%    \opt{fleqn} option.)
-%    \begin{macrocode}
-\newif\if@fleqn
-%
-\newskip\@mathmargin
-\@mathmargin\@centering
-%
-\DeclareOption{fleqn}{%
-    \@fleqntrue
-    \@mathmargin = -1sp
-    \let\mathindent=\@mathmargin
-    \AtBeginDocument{%
-        \ifdim\@mathmargin= -1sp
-            \@mathmargin\leftmargini minus\leftmargini
-        \fi
-    }%
-}
-%    \end{macrocode}
-%
-%    DMJ: This ensures that \cs{@mathmargin} is given some sort of
-%    sensible default if the class doesn't specify one, while still
-%    allowing a user to override the default value in their document
-%    preamble.  (Incidentally, I'm initializing \cs{@mathmargin} to
-%    \cs{leftmargini} for compatibility with \fn{fleqn.clo}, but I'm
-%    not at all convinced that's the right thing to do.)
-%
-%    The next question is what happens when amsmath is used with
-%    one of the standard classes.  Unfortunately, \latex/ implements
-%    \opt{fleqn} somewhat clumsily; instead of paramaterizing the
-%    definitions of the math structures (as I've attempted to do
-%    here), \fn{fleqn.clo} declares a dimen \cn{mathindent} that is
-%    much like my \cs{@mathmargin} and then redefines \cn\[, \cn\],
-%    \cn{equation}, and \cn{eqnarray}.  This means that things could
-%    get rather messy in 2.09 compatibility mode, since \fn{fleqn.clo}
-%    might be loaded after \fn{amsmath.sty}, which could cause a real
-%    mess.
-%
-%    [mjd,1999/07/07]: Let \cs{mathindent} = \cs{@mathmargin} as
-%    envisioned by DMJ. Compatibility-mode documents will all use the
-%    \pkg{amstex} package, not \pkg{amsmath}. There is a remote chance
-%    of a problem if someone makes an assignment to \cs{mathindent} in a
-%    way that implicitly assumes it is a dimen register (inasmuch as it
-%    has now become a skip register), and the string ``plus'' follows in
-%    the input stream, but if someone's document croaks in that way, I
-%    think they will just have to bite the bullet and fix it. The
-%    alternative is to penalize a lot of other users with a known
-%    handicap.
-%
-%    \begin{macrocode}
-\DeclareOption{?}{}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\ExecuteOptions{nointlimits,sumlimits,namelimits,centertags}
-%    \end{macrocode}
-%    The \cs{par} after \cs{ProcessOptions} is to ensure the correct
-%    line number on screen if an error occurs during option processing;
-%    otherwise the lookahead for a \qc{\*} option would result in \tex/
-%    showing the following line instead.
-%    \begin{macrocode}
-\ProcessOptions\par
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\@ifpackagewith{amsmath}{?}{%
-  \typeout{^^J%
-Documentation for the amsmath package is found in amsldoc.dvi^^J%
-(or .pdf or .tex).^^J%
-^^J%
-See also http://www.ams.org/tex/amslatex.html.^^J%
-^^J%
-Note: Using the first edition of The LaTeX Companion (1994) without^^J%
-errata as a guide for amsmath use is not recommended.^^J%
-  }%
-}{%
-  \typeout{%
-For additional information on amsmath, use the \lq ?\rq\space option.%
-  }%
-}
-%    \end{macrocode}
-%
-%    Processing to handle the \opt{cmex10} option is a little tricky
-%    because of different possible loading orders for \pkg{amsmath} and
-%    \pkg{amsfonts}. The package \pkg{amsmath} sets the \cs{cmex@opt}
-%    flag to 7 or 10, and the package \pkg{amsfonts} sets the flag to 1
-%    or 0.
-%    \begin{macrocode}
-\ifnum\cmex@opt=7 \relax
-  \DeclareFontShape{OMX}{cmex}{m}{n}{%
-    <-8>cmex7<8>cmex8<9>cmex9%
-    <10><10.95><12><14.4><17.28><20.74><24.88>cmex10%
-  }{}%
-  \expandafter\let\csname OMX/cmex/m/n/10\endcsname\relax
-\else
-  \ifnum\cmex@opt=\z@ % need to override cmex7 fontdef from amsfonts
-%    \end{macrocode}
-%    Force reloading of the OMX/cmex font definition file.
-%    \begin{macrocode}
-    \begingroup
-    \fontencoding{OMX}\fontfamily{cmex}%
-    \expandafter\let\csname OMX+cmex\endcsname\relax
-    \try@load@fontshape
-    \endgroup
-%    \end{macrocode}
-%    The \fn{cmex10} font gets special preload handling in the building
-%    of the \latex/ format file, need an extra bit here to work around
-%    that.
-%    \begin{macrocode}
-    \expandafter\let\csname OMX/cmex/m/n/10\endcsname\relax
-    \def\cmex@opt{10}%
-  \fi
-\fi
-%    \end{macrocode}
-%
-% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% \section{Call some other packages}
-%
-%    The \pkg{amstext} package provides the \cn{text} command. The
-%    \pkg{amsbsy} package provides \cn{boldsymbol} and \cn{pmb}. (Since
-%    1997 it is usually better to use the \pkg{bm} package instead; but
-%    I think we have to keep \pkg{amsbsy} here for backward
-%    compatibility [mjd,1999/11/19].) The \pkg{amsopn} package provides
-%    \cn{DeclareMathOperator}.
-%    \begin{macrocode}
-\RequirePackage{amstext}[1995/01/25]
-\RequirePackage{amsbsy}[1995/01/20]
-\RequirePackage{amsopn}[1995/01/20]
-%    \end{macrocode}
-%
-% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% \section{Miscellaneous}
-%
-%  \begin{macro}{\@amsmath@err}
-%    Defining this error function saves main mem.
-%    \begin{macrocode}
-\def\@amsmath@err{\PackageError{amsmath}}
-%    \end{macrocode}
-%  \end{macro}
-%
-% \begin{macro}{\AmS}
-%    The \cs{AmS} prefix can be used to construct the combination
-%    |\AmS-\LaTeX|.
-%    \begin{macrocode}
-\providecommand{\AmS}{{\protect\AmSfont
-  A\kern-.1667em\lower.5ex\hbox{M}\kern-.125emS}}
-%    \end{macrocode}
-%    In \cn{AmSfont} we call cmsy directly in lieu of trying to access
-%    it through the math fonts setup (e.g. |\the\textfont2|) because
-%    math fonts can't be relied on to be properly set up if we are not
-%    inside a math formula. This means that if this command is used in a
-%    document where CM fonts are not wanted, then a font substitution
-%    will need to be declared, e.g.:
-% \begin{verbatim}
-% \DeclareFontShape{OMS}{cmsy}{m}{n}{ <-> sub * xxx/m/n }{}
-% \end{verbatim}
-%    where |xxx| is some alternate font family.
-%    Taking the first letter of \cs{f@series} will produce |b| or |m|
-%    for the most common values (|b,bx,m|). It may produce nonsense for
-%    more unusual values of \cs{f@series}, so for safety's sake we have
-%    an additional \cs{if} test. We want to avoid setting the series to
-%    |bx| because in a standard \latex/ installation the combination
-%    |cmsy/bx/n| does not have a font definition, and the user
-%    would get a font substitution warning on screen.
-%    \begin{macrocode}
-\newcommand{\AmSfont}{%
-  \usefont{OMS}{cmsy}{\if\@xp\@car\f@series\@nil bb\else m\fi}{n}}
-%    \end{macrocode}
-% \end{macro}
-%
-%  \begin{macro}{\@mathmeasure}
-%    The function |\@mathmeasure| takes three arguments; the third arg
-%    is typeset as a math formula in an hbox, using arg |#2| as the
-%    mathstyle, and the result is left in the box named by the first
-%    arg. It is assumed that we are already in math mode, so we can turn
-%    off |\everymath| (in particular, |\check@mathfonts|).
-%    \begin{macrocode}
-\def\@mathmeasure#1#2#3{\setbox#1\hbox{\frozen@everymath\@emptytoks
-  \m@th$#2#3$}}
-%    \end{macrocode}
-%  \end{macro}
-%
-%    The \cs{inf@bad} constant is for testing overfull boxes.
-%    \begin{macrocode}
-\@ifundefined{inf@bad}{%
-  \newcount\inf@bad \inf@bad=1000000 \relax
-}{}
-%    \end{macrocode}
-%
-%\subsection{Math spacing commands}
-%
-%    Here we fill in some gaps in the set of spacing commands, and make them
-%    all work equally well in or out of math.
-%    We want all these commands to be robust but declaring them all with
-%    \cs{DeclareRobustCommand} uses up an control sequence name per
-%    command; to avoid this, we define a common command \cs{tmspace}
-%    (text-or-math space) which carries the robustness burden for all of
-%    them. The standard \cs{relax} before the \cs{ifmmode} is not
-%    necessary because of the \cs{protect} added by
-%    \cs{DeclareRobustCommand}.
-%    \begin{macrocode}
-\DeclareRobustCommand{\tmspace}[3]{%
-  \ifmmode\mskip#1#2\else\kern#1#3\fi\relax}
-\renewcommand{\,}{\tmspace+\thinmuskip{.1667em}}
-\let\thinspace\,
-\renewcommand{\!}{\tmspace-\thinmuskip{.1667em}}
-\let\negthinspace\!
-\renewcommand{\:}{\tmspace+\medmuskip{.2222em}}
-\let\medspace\:
-\newcommand{\negmedspace}{\tmspace-\medmuskip{.2222em}}
-\renewcommand{\;}{\tmspace+\thickmuskip{.2777em}}
-\let\thickspace\;
-\newcommand{\negthickspace}{\tmspace-\thickmuskip{.2777em}}
-%    \end{macrocode}
-%
-%  \begin{macro}{\mspace}
-%    And while we're at it, why don't we provide an equivalent of
-%    \cn{hspace} for math mode use. This allows use of |mu| units in
-%    (for example) constructing compound math symbols.
-%    \begin{macrocode}
-\newcommand{\mspace}[1]{\mskip#1\relax}
-%    \end{macrocode}
-%  \end{macro}
-%
-% \subsection{Vertical bar symbols}
-%    Add left/right specific versions of \cn{vert}, \cn{Vert}. Don't
-%    assume the delimiter codes are the CM defaults.
-%    \begin{macrocode}
-\def\@tempa#1#2\@nil{%
-  \ifx\delimiter#1\@tempcnta#2\relax\else\@tempcnta\z@\fi
-}
-\@xp\@tempa\vert\@empty\@nil
-\ifnum\@tempcnta>\z@
-  \advance\@tempcnta "4000000
-  \xdef\lvert{\delimiter\number\@tempcnta\space }
-  \advance\@tempcnta "1000000
-  \xdef\rvert{\delimiter\number\@tempcnta\space }
-\else
-  \ifx\@@undefined\lvert
-    % Fall back to cmex encoding since we don't know what else to do.
-    \DeclareMathDelimiter{\lvert}
-      {\mathopen}{symbols}{"6A}{largesymbols}{"0C}
-    \DeclareMathDelimiter{\rvert}
-      {\mathclose}{symbols}{"6A}{largesymbols}{"0C}
-  \fi
-\fi
-\@xp\@tempa\Vert\@empty\@nil
-\ifnum\@tempcnta>\z@
-  \advance\@tempcnta "4000000
-  \xdef\lVert{\delimiter\number\@tempcnta\space }
-  \advance\@tempcnta "1000000
-  \xdef\rVert{\delimiter\number\@tempcnta\space }
-\else
-  \ifx\@@undefined\lVert
-    \DeclareMathDelimiter{\lVert}
-      {\mathopen}{symbols}{"6B}{largesymbols}{"0D}
-    \DeclareMathDelimiter{\rVert}
-      {\mathclose}{symbols}{"6B}{largesymbols}{"0D}
-  \fi
-\fi
-%    \end{macrocode}
-%
-% \subsection{Fractions}
-%    Bury the generalized fraction primitives \cs{over}, \cs{atop},
-%    etc., because of their bizarre syntax, which is decidedly out of
-%    place in a \latex/ document.
-%    \begin{macrocode}
-\@saveprimitive\over\@@over
-\@saveprimitive\atop\@@atop
-\@saveprimitive\above\@@above
-\@saveprimitive\overwithdelims\@@overwithdelims
-\@saveprimitive\atopwithdelims\@@atopwithdelims
-\@saveprimitive\abovewithdelims\@@abovewithdelims
-%    \end{macrocode}
-%
-%    If someone insists on using \cs{over}, give a warning the first
-%    time and then resurrect the old definition. Laissez-faire policy.
-%    \begin{macrocode}
-\DeclareRobustCommand{\primfrac}[1]{%
-  \PackageWarning{amsmath}{%
-Foreign command \@backslashchar#1;\MessageBreak
-\protect\frac\space or \protect\genfrac\space should be used instead%
-\MessageBreak
-  }
-  \global\@xp\let\csname#1\@xp\endcsname\csname @@#1\endcsname
-  \csname#1\endcsname
-}
-\renewcommand{\over}{\primfrac{over}}
-\renewcommand{\atop}{\primfrac{atop}}
-\renewcommand{\above}{\primfrac{above}}
-\renewcommand{\overwithdelims}{\primfrac{overwithdelims}}
-\renewcommand{\atopwithdelims}{\primfrac{atopwithdelims}}
-\renewcommand{\abovewithdelims}{\primfrac{abovewithdelims}}
-%    \end{macrocode}
-%
-%    \cn{frac} calls \cn{@@over} directly instead of via \cn{genfrac}, for
-%    better speed because it is so common. \cn{tfrac} and \cn{dfrac} are
-%    abbreviations for some commonly needed mathstyle overrides. To
-%    conserve csnames we avoid making \cn{dfrac} and \cn{tfrac} robust
-%    (\cn{genfrac} is itself robust).
-%    \begin{macrocode}
-\DeclareRobustCommand{\frac}[2]{{\begingroup#1\endgroup\@@over#2}}
-\newcommand{\dfrac}{\genfrac{}{}{}0}
-\newcommand{\tfrac}{\genfrac{}{}{}1}
-%    \end{macrocode}
-%    The \cn{binom} command for binomial notation works like \cn{frac}
-%    and has similar variants. Note that we do not use \cs{z@} in
-%    \cn{dbinom} and \cn{tbinom} because they are not top-level robust
-%    like \cn{binom}, and so the \cs{z@} with the potentially
-%    problematic \qc{\@} character would become visible when writing one
-%    of those commands to a \fn{.toc} file.
-%    \begin{macrocode}
-\DeclareRobustCommand{\binom}{\genfrac()\z@{}}
-\newcommand{\dbinom}{\genfrac(){0pt}0}
-\newcommand{\tbinom}{\genfrac(){0pt}1}
-%    \end{macrocode}
-%
-%  \begin{macro}{\genfrac}
-%    This command provides access to \tex/'s generalized fraction
-%    primitives. Args: \arg{1} left delim, \arg{2} right delim, \arg{3}
-%    line thickness, \arg{4} mathstyle override, \arg{5} numerator,
-%    \arg{6} denominator. But we only read the first four args at first,
-%    in order to give us a moment to select the proper generalized
-%    fraction primitive. Any of those four args could be empty, and when
-%    empty the obvious defaults are selected (no delimiters, default
-%    line thickness (normally .4pt), and no mathstyle override).
-%    \begin{macrocode}
-\DeclareRobustCommand{\genfrac}[4]{%
-  \def\@tempa{#1#2}%
-  \edef\@tempb{\@nx\@genfrac\@mathstyle{#4}%
-    \csname @@\ifx @#3@over\else above\fi
-    \ifx\@tempa\@empty \else withdelims\fi\endcsname}
-  \@tempb{#1#2#3}}
-%    \end{macrocode}
-%    \cs{@genfrac} takes the preceding arguments and reads the
-%    numerator and denominator. Note that there's no convenient way to
-%    make the numerator and denominator \emph{contents}
-%    displaystyle, through this interface.
-%
-%    Args: \arg{1} mathstyle, \arg{2} fraction primitive,
-%    \arg{3} delimiters and rule thickness,
-%    \arg{4} numerator, \arg{5} denominator.
-%    \begin{macrocode}
-\def\@genfrac#1#2#3#4#5{{#1{\begingroup#4\endgroup#2#3\relax#5}}}
-%    \end{macrocode}
-%  \end{macro}
-%
-%    Empty mathstyle arg: no change; 0 = displaystyle, 1 = textstyle, 2
-%    = scriptstyle, 3 = scriptscriptstyle.
-%    \begin{macrocode}
-\def\@mathstyle#1{%
-  \ifx\@empty#1\@empty\relax
-  \else\ifcase#1\displaystyle % case 0
-    \or\textstyle\or\scriptstyle\else\scriptscriptstyle\fi\fi}
-%    \end{macrocode}
-%
-% \subsection{Sums and Integrals}
-%    Default value for sum limits is \cs{displaylimits}, see option
-%    `nosumlimits'.
-%
-%    We redefine all the cumulative operator symbols to use
-%    \cs{slimits@} so that switching between \cs{displaylimits} and
-%    \cs{nolimits} can be controlled by package options. Also add
-%    \cs{DOTSB} for the benefit of the dots lookahead. But we'd better
-%    make sure \cn{coprod} and the others are simple mathchars; if not,
-%    the attempted changes will probably fail miserably.
-%
-%    \begin{macrocode}
-\begingroup
-\edef\@tempa{\string\mathchar"}
-\def\@tempb#1"#2\@nil{#1"}
-\edef\@tempc{\expandafter\@tempb\meaning\coprod "\@nil}
-\ifx\@tempa\@tempc
-  \global\let\coprod@\coprod
-  \gdef\coprod{\DOTSB\coprod@\slimits@}
-  \global\let\bigvee@\bigvee
-  \gdef\bigvee{\DOTSB\bigvee@\slimits@}
-  \global\let\bigwedge@\bigwedge
-  \gdef\bigwedge{\DOTSB\bigwedge@\slimits@}
-  \global\let\biguplus@\biguplus
-  \gdef\biguplus{\DOTSB\biguplus@\slimits@}
-  \global\let\bigcap@\bigcap
-  \gdef\bigcap{\DOTSB\bigcap@\slimits@}
-  \global\let\bigcup@\bigcup
-  \gdef\bigcup{\DOTSB\bigcup@\slimits@}
-  \global\let\prod@\prod
-  \gdef\prod{\DOTSB\prod@\slimits@}
-  \global\let\sum@\sum
-  \gdef\sum{\DOTSB\sum@\slimits@}
-  \global\let\bigotimes@\bigotimes
-  \gdef\bigotimes{\DOTSB\bigotimes@\slimits@}
-  \global\let\bigoplus@\bigoplus
-  \gdef\bigoplus{\DOTSB\bigoplus@\slimits@}
-  \global\let\bigodot@\bigodot
-  \gdef\bigodot{\DOTSB\bigodot@\slimits@}
-  \global\let\bigsqcup@\bigsqcup
-  \gdef\bigsqcup{\DOTSB\bigsqcup@\slimits@}
-\fi
-\endgroup
-%    \end{macrocode}
-%
-% \subsection{Roots and radicals}
-%
-%    This root stuff needs syntax work and implementation work. Surely
-%    something more compact can be done?? [mjd, 1994/09/05]
-%    \begin{macrocode}
-\newcommand{\leftroot}{\@amsmath@err{\Invalid@@\leftroot}\@eha}
-\newcommand{\uproot}{\@amsmath@err{\Invalid@@\uproot}\@eha}
-\newcount\uproot@
-\newcount\leftroot@
-\renewcommand{\root}{\relaxnext@
-  \DN@{\ifx\@let@token\uproot\let\next@\nextii@\else
-   \ifx\@let@token\leftroot\let\next@\nextiii@\else
-   \let\next@\plainroot@\fi\fi\next@}%
-  \def\nextii@\uproot##1{\uproot@##1\relax\FN@\nextiv@}%
-  \def\nextiv@{\ifx\@let@token\@sptoken\DN@. {\FN@\nextv@}\else
-   \DN@.{\FN@\nextv@}\fi\next@.}%
-  \def\nextv@{\ifx\@let@token\leftroot\let\next@\nextvi@\else
-   \let\next@\plainroot@\fi\next@}%
-  \def\nextvi@\leftroot##1{\leftroot@##1\relax\plainroot@}%
-   \def\nextiii@\leftroot##1{\leftroot@##1\relax\FN@\nextvii@}%
-  \def\nextvii@{\ifx\@let@token\@sptoken
-   \DN@. {\FN@\nextviii@}\else
-   \DN@.{\FN@\nextviii@}\fi\next@.}%
-  \def\nextviii@{\ifx\@let@token\uproot\let\next@\nextix@\else
-   \let\next@\plainroot@\fi\next@}%
-  \def\nextix@\uproot##1{\uproot@##1\relax\plainroot@}%
-  \bgroup\uproot@\z@\leftroot@\z@\FN@\next@}
-\def\plainroot@#1\of#2{\setbox\rootbox\hbox{%
- $\m@th\scriptscriptstyle{#1}$}%
- \mathchoice{\r@@t\displaystyle{#2}}{\r@@t\textstyle{#2}}
- {\r@@t\scriptstyle{#2}}{\r@@t\scriptscriptstyle{#2}}\egroup}
-%    \end{macrocode}
-%
-% \changes{v2.0}{1999/06/17}{Normalize @@sqrt to sqrtsign}
-
-%    Name change from \cs{@@sqrt} to \cs{sqrtsign} happened in the
-%    1995/12/01 release of \latex/. If we were to assume that
-%    \cs{sqrtsign} is defined then someone with the 1995/06/01 release
-%    of \latex/ would have trouble using this package.
-%    \begin{macrocode}
-\@ifundefined{sqrtsign}{\let\sqrtsign\@@sqrt}{}
-\def\r@@t#1#2{\setboxz@h{$\m@th#1\sqrtsign{#2}$}%
- \dimen@\ht\z@\advance\dimen@-\dp\z@
- \setbox\@ne\hbox{$\m@th#1\mskip\uproot@ mu$}%
- \advance\dimen@ by1.667\wd\@ne
- \mkern-\leftroot@ mu\mkern5mu\raise.6\dimen@\copy\rootbox
- \mkern-10mu\mkern\leftroot@ mu\boxz@}
-%    \end{macrocode}
-%
-% \subsection{Et cetera}
-%
-% \changes{v2.0}{1999/06/18}{Leave Greek cap letters unaltered}
-%
-%    Specific names for the variant italic cap Greek letters are not
-%    defined by \latex/. If no preceding package defined these, we will
-%    define them now.
-%    \begin{macrocode}
-\@ifundefined{varGamma}{%
-  \DeclareMathSymbol{\varGamma}{\mathord}{letters}{"00}
-  \DeclareMathSymbol{\varDelta}{\mathord}{letters}{"01}
-  \DeclareMathSymbol{\varTheta}{\mathord}{letters}{"02}
-  \DeclareMathSymbol{\varLambda}{\mathord}{letters}{"03}
-  \DeclareMathSymbol{\varXi}{\mathord}{letters}{"04}
-  \DeclareMathSymbol{\varPi}{\mathord}{letters}{"05}
-  \DeclareMathSymbol{\varSigma}{\mathord}{letters}{"06}
-  \DeclareMathSymbol{\varUpsilon}{\mathord}{letters}{"07}
-  \DeclareMathSymbol{\varPhi}{\mathord}{letters}{"08}
-  \DeclareMathSymbol{\varPsi}{\mathord}{letters}{"09}
-  \DeclareMathSymbol{\varOmega}{\mathord}{letters}{"0A}
-}{}
-%    \end{macrocode}
-%
-%    \amstex/ redefines \cn{overline} as shown here, for reasons that
-%    are probably less important in \latex/: Make it read its argument
-%    as a macro argument rather than a ``math field'' (\emph{The
-%    \tex/book}, Chapter 26), to avoid problems when something that is
-%    apparently a single symbol is actually a non-simple macro (e.g.,
-%    \cn{dag}) \emph{and} is given as a single-token argument without
-%    enclosing braces.
-%    \begin{macrocode}
-\@saveprimitive\overline\@@overline
-\DeclareRobustCommand{\overline}[1]{\@@overline{#1}}
-%    \end{macrocode}
-%
-%    The \cs{boxed} command is specifically intended to put a box around
-%    an equation or piece of an equation. (Not including the equation
-%    number.) This isn't trivial for end-users to do it properly
-%    with \cs{fbox} so we provide a command for them.
-%    \begin{macrocode}
-\newcommand{\boxed}[1]{\fbox{\m@th$\displaystyle#1$}}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\newcommand{\implies}{\DOTSB\;\Longrightarrow\;}
-\newcommand{\impliedby}{\DOTSB\;\Longleftarrow\;}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\And{\DOTSB\;\mathchar"3026 \;}
-%    \end{macrocode}
-%
-%    The command \cn{nobreakdash} is designed only for use before a
-%    hyphen or dash (|-|, |--|, or |---|).
-%    Setting the hyphen in a box and then unboxing it means that the
-%    normal penalty will not be added after it---and if the penalty is
-%    not there a break will not be taken (unless an explicit penalty
-%    or glue follows, thus the final \verb=\nobreak=).
-%    \begin{macrocode}
-\newcommand{\nobreakdash}{\leavevmode
-  \toks@\@emptytoks \def\@tempa##1{\toks@\@xp{\the\toks@-}\FN@\next@}%
-  \DN@{\ifx\@let@token-\@xp\@tempa
-       \else\setboxz@h{\the\toks@\nobreak}\unhbox\z@\fi}%
-  \FN@\next@
-}
-%    \end{macrocode}
-%
-%    \cs{colon} is for a colon in math that resembles a text colon:
-%    small space on the left, larger space on the right. The \qc{\:}
-%    character by itself is treated as a \cs{mathrel} i.e. large, equal
-%    spacing on both sides.
-%    \begin{macrocode}
-\renewcommand{\colon}{\nobreak\mskip2mu\mathpunct{}\nonscript
-  \mkern-\thinmuskip{:}\mskip6muplus1mu\relax}
-%    \end{macrocode}
-%
-% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% \section{Ellipsis dots}
-%
-%    We can't use \cs{newif} for \cs{ifgtest@} because we want
-%    to include \cs{global} in the definitions of
-%    \cs{gtest@true} and \cs{gtest@false}.
-%    \begin{macrocode}
-\let\ifgtest@\iffalse                              % initial value
-\def\gtest@true{\global\let\ifgtest@\iftrue}
-\def\gtest@false{\global\let\ifgtest@\iffalse}
-\let\DOTSI\relax
-\let\DOTSB\relax
-\let\DOTSX\relax
-{\uccode`7=`\\ \uccode`8=`m \uccode`9=`a \uccode`0=`t \uccode`!=`h
- \uppercase{%
-  \gdef\math@#1#2#3#4#5#6\math@{\gtest@false\ifx 7#1\ifx 8#2%
-  \ifx 9#3\ifx 0#4\ifx !#5\xdef\meaning@{#6}\gtest@true
-  \fi\fi\fi\fi\fi}}}
-{\uccode`7=`c \uccode`8=`h \uccode`9=`\"
- \uppercase{\gdef\mathch@#1#2#3#4#5#6\mathch@{\gtest@false
-  \ifx 7#1\ifx 8#2\ifx 9#5\gtest@true\xdef\meaning@{9#6}\fi\fi\fi}}}
-\newcount\classnum@
-\def\getmathch@#1.#2\getmathch@{\classnum@#1 \divide\classnum@4096
- \ifcase\number\classnum@\or\or\gdef\thedots@{\dotsb@}\or
- \gdef\thedots@{\dotsb@}\fi}
-{\uccode`4=`b \uccode`5=`i \uccode`6=`n
- \uppercase{\gdef\mathbin@#1#2#3{\relaxnext@
-  \def\nextii@##1\mathbin@{\ifx\@sptoken\@let@token\gtest@true\fi}%
-  \gtest@false\DN@##1\mathbin@{}%
- \ifx 4#1\ifx 5#2\ifx 6#3\DN@{\FN@\nextii@}\fi\fi\fi\next@}}}
-{\uccode`4=`r \uccode`5=`e \uccode`6=`l
- \uppercase{\gdef\mathrel@#1#2#3{\relaxnext@
-  \def\nextii@##1\mathrel@{\ifx\@sptoken\@let@token\gtest@true\fi}%
- \gtest@false\DN@##1\mathrel@{}%
- \ifx 4#1\ifx 5#2\ifx 6#3\DN@{\FN@\nextii@}\fi\fi\fi\next@}}}
-{\uccode`5=`m \uccode`6=`a \uccode`7=`c
- \uppercase{\gdef\macro@#1#2#3#4\macro@{\gtest@false
-  \ifx 5#1\ifx 6#2\ifx 7#3\gtest@true
-  \xdef\meaning@{\macro@@#4\macro@@}\fi\fi\fi}}}
-\def\macro@@#1->#2\macro@@{#2}
-\newcount\DOTSCASE@
-{\uccode`6=`\\ \uccode`7=`D \uccode`8=`O \uccode`9=`T \uccode`0=`S
- \uppercase{\gdef\DOTS@#1#2#3#4#5{\gtest@false\DN@##1\DOTS@{}%
-  \ifx 6#1\ifx 7#2\ifx 8#3\ifx 9#4\ifx 0#5\let\next@\DOTS@@
-  \fi\fi\fi\fi\fi
-  \next@}}}
-{\uccode`3=`B \uccode`4=`I \uccode`5=`X
- \uppercase{\gdef\DOTS@@#1{\relaxnext@
-  \def\nextii@##1\DOTS@{\ifx\@sptoken\@let@token\gtest@true\fi}%
-  \DN@{\FN@\nextii@}%
-  \ifx 3#1\global\DOTSCASE@\z@\else
-  \ifx 4#1\global\DOTSCASE@\@ne\else
-  \ifx 5#1\global\DOTSCASE@\tw@\else\DN@##1\DOTS@{}%
-  \fi\fi\fi\next@}}}
-{\uccode`5=`\\ \uccode`6=`n \uccode`7=`o \uccode`8=`t
- \uppercase{\gdef\not@#1#2#3#4{\relaxnext@
-  \def\nextii@##1\not@{\ifx\@sptoken\@let@token\gtest@true\fi}%
- \gtest@false\DN@##1\not@{}%
- \ifx 5#1\ifx 6#2\ifx 7#3\ifx 8#4\DN@{\FN@\nextii@}\fi\fi\fi
- \fi\next@}}}
-\def\keybin@{\gtest@true
- \ifx\@let@token+\else\ifx\@let@token=\else
- \ifx\@let@token<\else\ifx\@let@token>\else
- \ifx\@let@token-\else\ifx\@let@token*\else\ifx\@let@token:\else
-   \gtest@false\fi\fi\fi\fi\fi\fi\fi}
-%    \end{macrocode}
-%    Patch to ensure \cs{@ldots} is defined. (Name changed to
-%    \cn{mathellipsis} in Dec 94 release of \latex/.)
-%    \begin{macrocode}
-\@ifundefined{@ldots}{\def\@ldots{\mathellipsis}}{}
-%    \end{macrocode}
-%    Reiterate the standard definition of \cs{ldots} to keep it from
-%    being clobbered by the redefinition of \cs{dots}.
-%    \begin{macrocode}
-\DeclareRobustCommand{\ldots}{%
-  \ifmmode \mathellipsis \else \textellipsis \fi
-}
-\DeclareRobustCommand{\dots}{%
-  \ifmmode \@xp\mdots@\else \@xp\textellipsis \fi
-}
-\def\tdots@{\leavevmode\unskip\relaxnext@
- \DN@{$\m@th\@ldots\,
-   \ifx\@let@token,\,$\else\ifx\@let@token.\,$\else
-   \ifx\@let@token;\,$\else\ifx\@let@token:\,$\else
-   \ifx\@let@token?\,$\else\ifx\@let@token!\,$\else
-     $ \fi\fi\fi\fi\fi\fi}%
-  \ \FN@\next@}
-\def\mdots@{\FN@\mdots@@}
-\def\mdots@@{\gdef\thedots@{\dotso@}%
- \ifx\@let@token\boldsymbol \gdef\thedots@\boldsymbol{\boldsymboldots@}%
- \else\ifx,\@let@token \gdef\thedots@{\dotsc}%
- \else\ifx\not\@let@token \gdef\thedots@{\dotsb@}%
- \else\keybin@
- \ifgtest@\gdef\thedots@{\dotsb@}%
- \else\xdef\meaning@{\meaning\@let@token..........}%
-   \xdef\meaning@@{\meaning@}%
-  \@xp\math@\meaning@\math@
-  \ifgtest@
-   \@xp\mathch@\meaning@\mathch@
-   \ifgtest@\@xp\getmathch@\meaning@\getmathch@\fi
-  \else\@xp\macro@\meaning@@\macro@
-  \ifgtest@
-   \@xp\not@\meaning@\not@\ifgtest@\gdef\thedots@{\dotsb@}%
-  \else\@xp\DOTS@\meaning@\DOTS@
-  \ifgtest@
-   \ifcase\number\DOTSCASE@\gdef\thedots@{\dotsb@}%
-    \or\gdef\thedots@{\dotsi}\else\fi
-  \else\@xp\math@\meaning@\math@
-  \ifgtest@\@xp\mathbin@\meaning@\mathbin@
-  \ifgtest@\gdef\thedots@{\dotsb@}%
-  \else\@xp\mathrel@\meaning@\mathrel@
-  \ifgtest@\gdef\thedots@{\dotsb@}%
-  \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
- \thedots@}
-%    \end{macrocode}
-%
-%    The \qc{\=} character is necessary in the two \cs{let} assignments
-%    in \cs{boldsymboldots@}, because the symbol we are making
-%    bold might be an \qc{\=} sign.
-%    \begin{macrocode}
-\def\boldsymboldots@#1{%
-  \bold@true\let\@let@token=#1\let\delayed@=#1\mdots@@
-  \boldsymbol#1\bold@false}
-%    \end{macrocode}
-%
-%    The definition of \cs{@cdots} is merely the \fn{plain.tex}
-%    definition of \cs{cdots}.
-%    \begin{macrocode}
-\def\@cdots{\mathinner{\cdotp\cdotp\cdotp}}
-\newcommand{\dotsi}{\!\@cdots}
-\let\dotsb@\@cdots
-%    \end{macrocode}
-%
-%    If any new right delimiters are defined, they would need to be
-%    added to the definition of \cs{rightdelim@} in order for \cn{dots}
-%    to work properly in all cases.
-%    \begin{macrocode}
-\def\rightdelim@{\gtest@true
- \ifx\@let@token)\else
- \ifx\@let@token]\else
- \ifx\@let@token\rbrack\else
- \ifx\@let@token\}\else
- \ifx\@let@token\rbrace\else
- \ifx\@let@token\rangle\else
- \ifx\@let@token\rceil\else
- \ifx\@let@token\rfloor\else
- \ifx\@let@token\rgroup\else
- \ifx\@let@token\rmoustache\else
- \ifx\@let@token\right\else
- \ifx\@let@token\bigr\else
- \ifx\@let@token\biggr\else
- \ifx\@let@token\Bigr\else
- \ifx\@let@token\Biggr\else\gtest@false
- \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi}
-\def\extra@{%
- \rightdelim@\ifgtest@
- \else\ifx\@let@token$\gtest@true
- \else\xdef\meaning@{\meaning\@let@token..........}%
- \@xp\macro@\meaning@\macro@\ifgtest@
- \@xp\DOTS@\meaning@\DOTS@
- \ifgtest@
- \ifnum\DOTSCASE@=\tw@\gtest@true\else\gtest@false
- \fi\fi\fi\fi\fi}
-\newif\ifbold@
-\def\dotso@{\relaxnext@
- \ifbold@
-  \let\@let@token\delayed@
-  \def\nextii@{\extra@\@ldots\ifgtest@\,\fi}%
- \else
-  \def\nextii@{\DN@{\extra@\@ldots\ifgtest@\,\fi}\FN@\next@}%
- \fi
- \nextii@}
-%    \end{macrocode}
-%    Why not save some tokens? (space vs. time).
-%    \begin{macrocode}
-\def\extrap@#1{%
- \DN@{#1\,}%
- \ifx\@let@token,\else
- \ifx\@let@token;\else
- \ifx\@let@token.\else\extra@
- \ifgtest@\else
- \let\next@#1\fi\fi\fi\fi\next@}
-%    \end{macrocode}
-%
-%    The \cn{cdots} command.
-%    \begin{macrocode}
-\DeclareRobustCommand{\cdots}{\DN@{\extrap@\@cdots}\FN@\next@}
-\let\dotsb\cdots
-\let\dotsm\cdots
-\DeclareRobustCommand{\dotso}{\relax
-  \ifmmode \DN@{\extrap@\@ldots}%
-  \else \let\next@\tdots@\fi
-  \FN@\next@}
-\DeclareRobustCommand{\dotsc}{%
-  \DN@{\ifx\@let@token;\@ldots\,%
-       \else \ifx\@let@token.\@ldots\,%
-       \else \extra@\@ldots \ifgtest@\,\fi
-       \fi\fi}%
-  \FN@\next@}
-\renewcommand{\longrightarrow}{%
-  \DOTSB\protect\relbar\protect\joinrel\rightarrow}
-\renewcommand{\Longrightarrow}{%
-  \DOTSB\protect\Relbar\protect\joinrel\Rightarrow}
-\renewcommand{\longleftarrow}{%
-  \DOTSB\leftarrow\protect\joinrel\protect\relbar}
-\renewcommand{\Longleftarrow}{%
-  \DOTSB\Leftarrow\protect\joinrel\protect\Relbar}
-\renewcommand{\longleftrightarrow}{\DOTSB\leftarrow\joinrel\rightarrow}
-\renewcommand{\Longleftrightarrow}{\DOTSB\Leftarrow\joinrel\Rightarrow}
-\renewcommand{\mapsto}{\DOTSB\mapstochar\rightarrow}
-\renewcommand{\longmapsto}{\DOTSB\mapstochar\longrightarrow}
-\renewcommand{\hookrightarrow}{\DOTSB\lhook\joinrel\rightarrow}
-\renewcommand{\hookleftarrow}{\DOTSB\leftarrow\joinrel\rhook}
-\renewcommand{\iff}{\DOTSB\;\Longleftrightarrow\;}
-%    \end{macrocode}
-%    The \cn{doteq} command formerly used \cs{buildrel}; we avoid that
-%    because it requires `\cn{over}' as part of its syntax. Use 0pt
-%    instead of \cs{z@} for robustitude.
-%    \begin{macrocode}
-\renewcommand{\doteq}{%
-  \DOTSB\mathrel{\mathop{\kern0pt =}\limits^{\textstyle.}}}
-%    \end{macrocode}
-%
-% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% \section{Integral signs}
-%
-%    The straightforward \cs{ifinner} test to see if the current math
-%    context is non-display, fails if, for instance, we are typesetting
-%    a multiline display within an \cs{halign}, with the pieces going
-%    into constructions like
-%    \begin{verbatim}
-%    $\displaystyle...$
-%    \end{verbatim}
-%    So we need a better test to find out if we are `in a display'. We
-%    therefore create \cs{if@display}.
-%
-%    \begin{macrocode}
-\newif\if@display
-\everydisplay\@xp{\the\everydisplay \@displaytrue}
-%    \end{macrocode}
-%
-%    Default value for integral limits is \cs{nolimits}, see the
-%    definition of the `nointlimits' option.
-%    \begin{macrocode}
-\renewcommand{\int}{\DOTSI\intop\ilimits@}
-\renewcommand{\oint}{\DOTSI\ointop\ilimits@}
-\def\intkern@{\mkern-6mu\mathchoice{\mkern-3mu}{}{}{}}
-\def\intdots@{\mathchoice{\@cdots}%
- {{\cdotp}\mkern1.5mu{\cdotp}\mkern1.5mu{\cdotp}}%
- {{\cdotp}\mkern1mu{\cdotp}\mkern1mu{\cdotp}}%
- {{\cdotp}\mkern1mu{\cdotp}\mkern1mu{\cdotp}}}
-%
-\newcommand{\iint}{\DOTSI\protect\MultiIntegral{2}}
-\newcommand{\iiint}{\DOTSI\protect\MultiIntegral{3}}
-\newcommand{\iiiint}{\DOTSI\protect\MultiIntegral{4}}
-\newcommand{\idotsint}{\DOTSI\protect\MultiIntegral{0}}
-%    \end{macrocode}
-%
-%    If the \cs{limits} option is applied, use \cs{mathop} and fudge
-%    the left-hand space a bit to make the subscript visually centered.
-%
-%    \verb'#1' is the multiplicity.
-%    \begin{macrocode}
-\newcommand{\MultiIntegral}[1]{%
-  \edef\ints@c{\noexpand\intop
-    \ifnum#1=\z@\noexpand\intdots@\else\noexpand\intkern@\fi
-    \ifnum#1>\tw@\noexpand\intop\noexpand\intkern@\fi
-    \ifnum#1>\thr@@\noexpand\intop\noexpand\intkern@\fi
-    \noexpand\intop
-    \noexpand\ilimits@
-  }%
-  \futurelet\@let@token\ints@a
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\ints@a{%
-  \ifx\limits\@let@token \ints@b
-  \else \ifx\displaylimits\@let@token \ints@b
-  \else\ifx\ilimits@\displaylimits \ints@b
-  \fi\fi\fi
-  \ints@c
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\ints@b{%
-  \mkern-7mu\mathchoice{\mkern-2mu}{}{}{}%
-  \mathop\bgroup
-    \mkern7mu\mathchoice{\mkern2mu}{}{}{}%
-    \let\ilimits@\egroup
-}%
-%    \end{macrocode}
-%
-% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% \section{Size dependent definitions}
-%
-%    We now define all stuff which has to change whenever a new math
-%    size is to be activated. \latex/ provides a hook called
-%    |\every@math@size| to support such a need. All assignments in the
-%    |\every@math@size| hook that need to take outside effect should be
-%    global.
-%
-% \subsection{Struts for math}
-%
-%    The various kinds of struts could use some analysis and perhaps
-%    consolidation.
-%
-%    For example perhaps the \cn{bBigg} delimiters could use
-% \begin{verbatim}
-% 1.2\ht\strutbox (1.8, 2.4, 3.0)
-% \end{verbatim}
-%    instead of
-% \begin{verbatim}
-% 1.0\big@size (1.5, 2.0, 2.5)
-% \end{verbatim}
-%    since \cs{strut} is reset with every size change [mjd, 1994/10/07].
-%    But this change would introduce the possibility of changed line
-%    and page breaks in existing documents, so would need to be
-%    handled with care.
-%
-% \begin{macro}{\Mathstrut@}
-% \begin{macro}{\Mathstrutbox@}
-% \begin{macro}{\resetMathstrut@}
-%    Here comes the code for Spivak's |\Mathstrut@|.
-%    \begin{macrocode}
-\newbox\Mathstrutbox@
-\setbox\Mathstrutbox@=\hbox{}
-\def\Mathstrut@{\copy\Mathstrutbox@}
-%    \end{macrocode}
-%    The setting of the height and depth of the |\Mathstrutbox@| is done
-%    in the |\every@math@size| hook since it depends on the height of a
-%    paren. As \cs{every@math@size} is triggered by |$| after a font
-%    size change, we want to avoid using another math formula |$...$| to
-%    measure the math paren height; instead we go through the mathcode
-%    of the \qc{\(} character. We assume that the mathcode has a leading
-%    hex digit 4 indicating `open delimiter'; this allows us to make a
-%    relatively simple function to get the correct font and character
-%    position.
-%    \begin{macrocode}
-\def\resetMathstrut@{%
-  \setbox\z@\hbox{%
-    \mathchardef\@tempa\mathcode`\(\relax
-    \def\@tempb##1"##2##3{\the\textfont"##3\char"}%
-    \expandafter\@tempb\meaning\@tempa \relax
-  }%
-%    \end{macrocode}
-%    These height and depth assignments are implicitly global.
-%    \begin{macrocode}
-  \ht\Mathstrutbox@\ht\z@ \dp\Mathstrutbox@\dp\z@
-}
-\addto@hook\every@math@size{\resetMathstrut@}
-%    \end{macrocode}
-% \end{macro}
-% \end{macro}
-% \end{macro}
-%
-% \begin{macro}{\strut@}
-% \begin{macro}{\strutbox@}
-%    Next follows a special internal strut which is supposed to match
-%    the height and the depth of a normal |\strut| minus
-%    |\normallineskiplimit| according to M. Spivak.
-%
-%    This should really go into the definition of \cs{size@update}, and
-%    then the box reset could be local; but \cs{size@update} doesn't
-%    have any hook and is handled in such a way that it cannot even be
-%    changed except by changing \cs{set@fontsize}. So instead we put
-%    \cs{reset@strutbox@} into \cs{every@math@size} and make it global.
-%    Then because of some complications in the way \cs{glb@settings} and
-%    \cs{check@mathfonts} work, we have to re-invoke it at the beginning
-%    of every environment that might use \cs{strut@}. Fortunately this
-%    can be achieved (more or less) through the \cs{spread@equation}
-%    hook. [mjd,2000/03/10]
-%    \begin{macrocode}
-\newbox\strutbox@
-\def\strut@{\copy\strutbox@}
-\def\reset@strutbox@{%
-  \global\setbox\strutbox@\hbox{%
-    \lower.5\normallineskiplimit
-       \vbox{\kern-\normallineskiplimit\copy\strutbox}}}
-\addto@hook\every@math@size{\reset@strutbox@}
-\AtBeginDocument{\reset@strutbox@}
-%    \end{macrocode}
-% \end{macro}
-% \end{macro}
-%
-% \subsection{Big delimiters}
-%
-%    We are now going to redefine the plain \tex/ commands \cn{big},
-%    \cn{bigl}, etc., to produce different results in different sizes.
-%    Actually we only have to define \cn{big}, \cn{Big}, etc., since
-%    they are used to construct the directional versions \cn{bigl},
-%    \cn{bigr}, and the rest.
-%
-% \begin{macro}{\big}
-% \begin{macro}{\Big}
-% \begin{macro}{\bigg}
-% \begin{macro}{\Bigg}
-%     To save token space we put everything into the common macro
-%    |\bBigg@|. The macros are now simply a call to |\bBigg@| with a
-%    factor to determine the correct height of the delimiter as an
-%    argument. This code should better go into a future version of
-%    the \latex/ kernel; the macro |\n@space| is then superfluous (since
-%    it is only used once) and should be removed to avoid wasting hash
-%    table space unnecessarily.
-%    \begin{macrocode}
-\renewcommand{\big}{\bBigg@\@ne}
-\renewcommand{\Big}{\bBigg@{1.5}}
-\renewcommand{\bigg}{\bBigg@\tw@}
-\renewcommand{\Bigg}{\bBigg@{2.5}}
-%    \end{macrocode}
-% \end{macro}
-% \end{macro}
-% \end{macro}
-% \end{macro}
-%
-% \begin{macro}{\bBigg@}
-%    Now we tackle the macro which has to do the real work. It
-%    actually has two arguments, the factor and the wanted delimiter.
-%    \begin{macrocode}
-\def\bBigg@#1#2{%
-%    \end{macrocode}
-%    We start with an extra set of braces because we want
-%    constructions like |\def\bigl{\mathopen\big}| to work without the
-%    overhead of extra arguments.
-%    \begin{macrocode}
-  {\@mathmeasure\z@{\nulldelimiterspace\z@}%
-     {\left#2\vcenter to#1\big@size{}\right.}%
-   \box\z@}}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\big@size}
-%    |\big@size| needs to be set to 1.2 times the height of a math
-%    paren. This height is already recorded in |\Mathstrutbox@|.
-%    \begin{macrocode}
-\addto@hook\every@math@size{%
-  \global\big@size 1.2\ht\Mathstrutbox@
-  \global\advance\big@size 1.2\dp\Mathstrutbox@ }
-\newdimen\big@size
-%    \end{macrocode}
-% \end{macro}
-%
-%
-% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% \section{Math accents}
-%
-%    We want to change the leading digit of math accents to be
-%    \cs{accentclass@} so that it can vary according to certain internal
-%    purposes.
-%    \begin{macrocode}
-\def\accentclass@{7}
-\def\noaccents@{\def\accentclass@{0}}
-%    \end{macrocode}
-%
-%    There are a few \meta{math alphabet}s in the standard fonts where
-%    we have to change the extra macros because the standard definitions
-%    don't account for these accent problems. The first is for the
-%    \cs{mathit} command.
-%    \begin{macrocode}
-\DeclareFontEncoding{OML}{}{\noaccents@}
-%    \end{macrocode}
-%    The next one corrects the \cs{cal} alphabet.
-%    \begin{macrocode}
-\DeclareFontEncoding{OMS}{}{\noaccents@}
-%    \end{macrocode}
-%
-%    Triple and quadruple dot accents.
-%    \begin{macrocode}
-\newcommand{\dddot}[1]{%
-  {\mathop{#1}\limits^{\vbox to-1.4\ex@{\kern-\tw@\ex@
-   \hbox{\normalfont ...}\vss}}}}
-\newcommand{\ddddot}[1]{%
-  {\mathop{#1}\limits^{\vbox to-1.4\ex@{\kern-\tw@\ex@
-   \hbox{\normalfont....}\vss}}}}
-%    \end{macrocode}
-%
-%    The following code deals with support for compound accents.
-%    By redefining \cs{set@mathaccent} we ensure that
-%    \cn{DeclareMathAccent} will define accent commands to run our
-%    \cs{mathaccentV} function instead of the primitive \cs{mathaccent}.
-%    \begin{macrocode}
-\def\set@mathaccent#1#2#3#4{%
-  \xdef#2{\@nx\protect\@nx\mathaccentV
-    {\@xp\@gobble\string#2}\hexnumber@#1#4}%
-}
-%    \end{macrocode}
-%
-%    We redefine the standard math accent commands to
-%    call \cs{mathaccentV}, using the mathgroup/encoding-number
-%    information embedded in their previous definitions. If the
-%    definition of an accent command does not have the expected form, we
-%    leave the accent command alone, but give a warning. For widehat and
-%    widetilde, we need to avoid clobbering the definitions done by the
-%    \pkg{amsfonts} package. Arbitrating the contention between
-%    \pkg{amsmath} and \pkg{amsfonts} to allow doubling a widetilde
-%    accent looks tricky, so for the time being [mjd,1999/07/19] we just
-%    leave \cn{widehat} and \cn{widetilde} alone. As a result, if the
-%    \pkg{amsmath} package is loaded on top of a vanilla \latex/
-%    documentclass, everything runs through with no warnings. If a
-%    Lucida Math or other math fonts package is loaded in addition to
-%    \pkg{amsmath}, there are greater difficulties, but those are
-%    addressed elsewhere.
-%    \begin{macrocode}
-\def\@tempa#1{\@xp\@tempb\meaning#1\@nil#1}
-\def\@tempb#1>#2#3 #4\@nil#5{%
-  \@xp\ifx\csname#3\endcsname\mathaccent
-    \@tempc#4?"7777\@nil#5%
-  \else
-    \PackageWarningNoLine{amsmath}{%
-      Unable to redefine math accent \string#5}%
-  \fi
-}
-\def\@tempc#1"#2#3#4#5#6\@nil#7{%
-  \chardef\@tempd="#3\relax\set@mathaccent\@tempd{#7}{#2}{#4#5}}
-\@tempa{\hat}
-\@tempa{\check}
-\@tempa{\tilde}
-\@tempa{\acute}
-\@tempa{\grave}
-\@tempa{\dot}
-\@tempa{\ddot}
-\@tempa{\breve}
-\@tempa{\bar}
-\@tempa{\vec}
-\@ifundefined{mathring}{%
-  \DeclareMathAccent{\mathring}{\mathalpha}{operators}{"17}
-}{%
-  \@tempa{\mathring}
-}
-%%\@tempa\widetilde
-%%\@tempa\widehat
-%    \end{macrocode}
-%
-%    Regression testing of amsmath 2.0 showed that in some documents
-%    there occurred fragments of the form
-% \begin{verbatim}
-% \hat\mathcal{G}
-% \end{verbatim}
-%    This is not at all correct syntax for the argument of a \latex/
-%    command but it produced the intended result anyway because of the
-%    internal syntax of the \cs{mathaccent} primitive. With
-%    \cs{mathaccentV}, it will yield an error message. We therefore do a
-%    special check for such syntax problems in order to make the error
-%    message more informative.
-%    \begin{macrocode}
-\newcommand{\acc@check}{}
-\newcommand{\acc@error}{}
-\def\acc@check{\@ifnextchar\@empty\relax\acc@error}
-%    \end{macrocode}
-%    We put most of the tokens in a separate macro so they do not get
-%    scanned unless they are actually needed.
-%    \begin{macrocode}
-\def\acc@error{%
-  \@amsmath@err{%
-    Improper argument for math accent:\MessageBreak
-    Extra braces must be added to prevent wrong output%
-  }\@ehc
-}
-%    \end{macrocode}
-%
-%    For \cs{mathaccentV} part of the processing is dependent on the
-%    depth of nesting of math accent commands. We introduce a dedicated
-%    counter for this instead of using chardef because we want to
-%    increment/decrement it during processing, and incrementing a
-%    chardef integer is more work.
-%    \begin{macrocode}
-\newcount\macc@depth
-%    \end{macrocode}
-%
-%    Provide this function in case it is not already available.
-%    \begin{macrocode}
-\long\def\@gobblethree#1#2#3{}
-%    \end{macrocode}
-%
-%    The \cs{mathaccentV} function first counts the number of nested
-%    math accents by setting the argument in a throw-away box. (This is
-%    not as risky as such an operation would normally be because the
-%    argument is generally either a simple math symbol or a nested math
-%    accent call with a simple math symbol at the bottom of the
-%    nesting.)
-%
-%    There are two benefits from counting the nesting levels first
-%    before doing anything else: (1) we can fall back to a simple
-%    \cs{mathaccent} call if the nesting depth is 1, and (2) if the
-%    nesting depth is greater than 1, we would like to be able to tell
-%    when we have reached the lowest level, because at that point we
-%    want to save the argument for later use and place an accent on top
-%    of a phantom copy.
-%
-%    When we have multiple accents, they will be placed on top of the
-%    invisible box, followed by some suitable kerns, then a visible copy
-%    of the nucleus. To see why, let us look at what goes wrong with a
-%    double application of the \cs{mathaccent} primitive. The standard
-%    definition of \cs{hat} is \verb'\mathaccent"705E', so
-%    \verb'\hat{\hat{F}}' expands to
-%\begin{verbatim}
-%\mathaccent"705E{\mathaccent"705E{F}}
-%\end{verbatim}
-%    The result of this operation is
-%\begin{verbatim}
-%\vbox(12.11111+0.0)x7.81946
-%.\hbox(6.94444+0.0)x0.0, shifted 1.40973
-%..\OT1/cmr/m/n/10 ^
-%.\kern-4.30554
-%.\vbox(9.47221+0.0)x7.81946
-%..\hbox(6.94444+0.0)x0.0, shifted 2.24309
-%...\OT1/cmr/m/n/10 ^
-%..\kern-4.30554
-%..\hbox(6.83331+0.0)x7.81946
-%...\OML/cmm/m/it/10 F
-%\end{verbatim}
-%    \tex/ starts by constructing a vbox with the hat character on top
-%    of the F. Then it puts another hat character on top of the vbox;
-%    but without skew information, because that is only applied by
-%    \cs{mathaccent} when the base object is a simple symbol. So the
-%    first accent is skewed to the correct position but all later
-%    accents are not. By the way, the actual width of the F in the above
-%    example is less than 7.81946; the box in which it is packed was
-%    automatically lengthened by the width of the F's italic correction
-%    (without actually putting in a kern for it).
-%
-%    To get the second accent shifted farther to the right we
-%    artificially increase the width of the innermost box and add
-%    a compensating kern afterward. Furthermore, to get proper placement
-%    of a following subscript or superscript, we take the base symbol
-%    out, leaving a phantom in its place, and print it by itself
-%    following the kern. We then need to increase the kern amount to
-%    move the base character backward under the accents again.
-%    Here is what the results look like:
-%\begin{verbatim}
-%\vbox(12.11111+0.0)x9.48618
-%.\hbox(6.94444+0.0)x0.0, shifted 2.24309
-%..\OT1/cmr/m/n/10 ^
-%.\kern-4.30554
-%.\vbox(9.47221+0.0)x9.48618
-%..\hbox(6.94444+0.0)x0.0, shifted 2.24309
-%...\OT1/cmr/m/n/10 ^
-%..\kern-4.30554
-%..\hbox(6.83331+0.0)x9.48618
-%...\hbox(6.83331+0.0)x7.81946
-%...\kern 1.66672
-%\kern -9.48618
-%\OML/cmm/m/it/10 F
-%\end{verbatim}
-%
-%    Much of this implementation is based on code from the \pkg{accents}
-%    package of Javier Bezos. I added the test to revert to a simple
-%    \cs{mathaccent} when accents are not nested, and some other
-%    refinements to reduce the number of kerns used (to conserve box
-%    memory) and the number of cycles through \cs{mathchoice} (to make
-%    things run a little faster). It was all rather difficult and my
-%    first two attempts had serious bugs but I hope and believe that
-%    this version will do better. [mjd,2000/03/15]
-%
-%    The \qq{V} in \cs{mathaccentV} is just an indication that it takes
-%    five arguments. It is important that the name includes
-%    \texttt{mathaccent}, otherwise \cs{DeclareMathAccent} will balk at
-%    redefining one of our accent commands, for example when an
-%    alternative math font package is loaded.
-%    \begin{macrocode}
-\def\mathaccentV#1#2#3#4#5{%
-  \ifmmode
-    \gdef\macc@tmp{\macc@depth\@ne}%
-    \setbox\z@\hbox{%
-      \let\mathaccentV\macc@test
-      \let\use@mathgroup\@gobbletwo \let\select@group\@gobblethree
-      \frozen@everymath{}$#5$%
-    }%
-    \macc@tmp
-    \ifnum\macc@depth=\@ne
-      \global\let\macc@nucleus\@empty
-      \mathaccent"\accentclass@
-    \else
-      \@xp\macc@nested
-    \fi
-    #2#3#4{#5}%
-    \macc@nucleus
-  \else
-    \@xp\nonmatherr@\csname#1\endcsname
-  \fi
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\macc@test#1#2#3#4{\xdef\macc@tmp{\macc@tmp\advance\macc@depth\@ne}}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\macc@group{-1}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\macc@nested#1#2#3#4{%
-  \begingroup
-  \let\math@bgroup\@empty \let\math@egroup\macc@set@skewchar
-  \mathsurround\z@ \frozen@everymath{\mathgroup\macc@group\relax}%
-  \macc@set@skewchar\relax
-  \let\mathaccentV\macc@nested@a
-  \macc@nested@a\relax#1#2#3{#4}%
-  \endgroup
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\let\macc@palette\mathpalette
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\macc@nested@a#1#2#3#4#5{%
-%    \end{macrocode}
-%    This test saves some work that would otherwise be always repeated
-%    fourfold thanks to \cs{mathchoice}.
-%    \begin{macrocode}
-  \ifnum\macc@group=\mathgroup
-  \else \macc@set@skewchar\relax \edef\macc@group{\the\mathgroup}%
-  \fi
-  \mathchardef\macc@code "\accentclass@ #2#3#4\relax
-  \macc@palette\macc@a{#5}%
-}
-%    \end{macrocode}
-%
-%    The reason that \cs{macc@set@skewchar} takes an argument is so that
-%    it can serve as a direct substitute for \cs{math@egroup}, in
-%    addition to being used separately.
-%
-%    Setting a skewchar with this method works for symbols of variable
-%    mathgroup (class 7, letters and numbers) but not necessarily for
-%    special symbols like \cn{partial} or \cs{xi} whose mathgroup
-%    doesn't change; fortunately the most commonly used ones come from
-%    mathgroup one, which is the fall-back mathgroup for skewchar.
-%    \begin{macrocode}
-\def\macc@set@skewchar#1{%
-  \begingroup
-  \ifnum\mathgroup=\m@ne \let\@tempa\@ne
-  \else
-    \ifnum\skewchar\textfont\mathgroup=\m@ne \let\@tempa\@ne
-    \else \let\@tempa\mathgroup
-    \fi
-  \fi
-  \count@=\skewchar\textfont\@tempa
-  \advance\count@"7100
-  \edef\@tempa{\endgroup
-    \mathchardef\noexpand\macc@skewchar=\number\count@\relax}%
-  \@tempa
-  #1%
-}
-%    \end{macrocode}
-%
-%    Arg1 is math-style, arg2 is accent base object. We assume that math
-%    style doesn't change within the nested group of accents; this means
-%    we can set \cs{macc@style} only once and redefine \cs{macc@palette}
-%    to use it, in order to run \cs{mathchoice} only once instead of
-%    multiplying the calls exponentially as the nesting level increases.
-%    \begin{macrocode}
-\def\macc@a#1#2{%
-  \begingroup
-  \let\macc@style#1\relax
-  \def\macc@palette##1{##1\macc@style}%
-  \advance\macc@depth\m@ne
-  \ifnum\macc@depth=\z@
-    \gdef\macc@nucleus{#2}%
-%    \end{macrocode}
-%    Extra \cs{@empty} tokens are to prevent low-level \tex/ errors from
-%    the potential syntactic error that \cs{acc@check} checks for.
-%    \begin{macrocode}
-    \setbox\z@\hbox{$#1#2\@empty{}\macc@skewchar$}%
-    \setbox\tw@\hbox{$#1#2\@empty\macc@skewchar$}%
-    \dimen@\tw@\wd\tw@ \advance\dimen@-\tw@\wd\z@
-    \xdef\macc@kerna{\the\dimen@\relax}%
-    \setbox4\hbox{$#1#2\acc@check\@empty$}%
-    \global\setbox\@ne\hbox to\wd4{}%
-    \ht\@ne\ht4 \dp\@ne\dp4
-    \xdef\macc@kernb{\the\wd4\relax}%
-    \mathaccent\macc@code{\box\@ne\kern\macc@kerna}%
-  \else
-    \mathaccent\macc@code{\let\macc@adjust\@empty #1#2\@empty}%
-    \macc@adjust
-  \fi
-  \endgroup
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\macc@adjust{%
-  \dimen@\macc@kerna\advance\dimen@\macc@kernb
-  \kern-\dimen@
-}
-%    \end{macrocode}
-%
-%    The commands \cs{Hat}, \cs{Tilde}, \ldots, are supported as
-%    synonyms of \cs{hat}, \cs{tilde}, \ldots, for backward
-%    compatibility.
-%    \begin{macrocode}
-\def\Hat{\hat}
-\def\Check{\check}
-\def\Tilde{\tilde}
-\def\Acute{\acute}
-\def\Grave{\grave}
-\def\Dot{\dot}
-\def\Ddot{\ddot}
-\def\Breve{\breve}
-\def\Bar{\bar}
-\def\Vec{\vec}
-%    \end{macrocode}
-%
-%    This error message about math mode is used several times so we make
-%    an abbreviation for it.
-%    \begin{macrocode}
-\def\nonmatherr@#1{\@amsmath@err{\protect
-  #1 allowed only in math mode}\@ehd}
-%    \end{macrocode}
-%
-% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% \section{Mods, continued fractions, etc.}
-%
-%    The commands \cn{bmod}, \cn{pmod}, \cn{pod}, \cn{mod} aren't
-%    currently robust. [mjd, 1994/09/05]
-%    \begin{macrocode}
-\renewcommand{\bmod}{\nonscript\mskip-\medmuskip\mkern5mu\mathbin
-  {\operator@font mod}\penalty900
-  \mkern5mu\nonscript\mskip-\medmuskip}
-\newcommand{\pod}[1]{\allowbreak
-  \if@display\mkern18mu\else\mkern8mu\fi(#1)}
-\renewcommand{\pmod}[1]{\pod{{\operator@font mod}\mkern6mu#1}}
-\newcommand{\mod}[1]{\allowbreak\if@display\mkern18mu
-  \else\mkern12mu\fi{\operator@font mod}\,\,#1}
-%    \end{macrocode}
-%
-%    Continued fractions. The optional arg l or r controls horizontal
-%    placement of the numerators. The |\kern-\nulldelimiterspace|
-%    is needed in the definition if we want the right-hand sides of the
-%    fraction rules to line up. The \cs{strut} keeps the numerator of
-%    a subsidiary cfrac from coming too close to the fraction rule above
-%    it.
-%    \begin{macrocode}
-\newcommand{\cfrac}[3][c]{{\displaystyle\frac{%
-  \strut\ifx r#1\hfill\fi#2\ifx l#1\hfill\fi}{#3}}%
-  \kern-\nulldelimiterspace}
-%    \end{macrocode}
-%
-%    \cn{overset} and \cn{underset} put symbols above, respectively
-%    below, a symbol that is not a \cs{mathop} and therefore does not
-%    naturally accept limits. \cs{binrel@@} uses information collected
-%    by \cs{binrel@} to make the resulting construction be of type
-%    mathrel or mathbin if the base symbol is either of those types.
-%    \begin{macrocode}
-\newcommand{\overset}[2]{\binrel@{#2}%
-  \binrel@@{\mathop{\kern\z@#2}\limits^{#1}}}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\newcommand{\underset}[2]{\binrel@{#2}%
-  \binrel@@{\mathop{\kern\z@#2}\limits_{#1}}}
-%    \end{macrocode}
-%
-%    \cn{sideset} allows placing `adscript' symbols at the four
-%    corners of a \cs{mathop}, \emph{in addition to} limits. Left-side
-%    adscripts go into arg \arg{1}, in the form |_{...}^{...}|, and
-%    right-side adscripts go into arg \arg{2}.
-%
-%    As currently written [mjd, 1995/01/21] this is pretty haphazard.
-%    In order to really make it work properly in full generality we'd
-%    have to read and measure the top and bottom limits and use
-%    mathchoice to always get the right mathstyle for each piece,
-%    etc., etc.
-%    \begin{macrocode}
-\newcommand{\sideset}[3]{%
-  \@mathmeasure\z@\displaystyle{#3}%
-%    \end{macrocode}
-%    Use a global box assignment here since the depth override is
-%    implicitly global. Then move the constructed box to a local box
-%    register (2) to ensure it won't get destroyed during the next two
-%    mathmeasure statements. This precaution may be more extreme than
-%    necessary in practice.
-%    \begin{macrocode}
-  \global\setbox\@ne\vbox to\ht\z@{}\dp\@ne\dp\z@
-  \setbox\tw@\box\@ne
-  \@mathmeasure4\displaystyle{\copy\tw@#1}%
-  \@mathmeasure6\displaystyle{#3\nolimits#2}%
-  \dimen@-\wd6 \advance\dimen@\wd4 \advance\dimen@\wd\z@
-  \hbox to\dimen@{}\mathop{\kern-\dimen@\box4\box6}%
-}
-%    \end{macrocode}
-%
-% \begin{macro}{\smash}
-%    We add to the \cn{smash} command an optional argument
-%    denoting the part of the formula to be smashed.
-%    \begin{macrocode}
-\renewcommand{\smash}[1][tb]{%
-  \def\mb@t{\ht}\def\mb@b{\dp}\def\mb@tb{\ht\z@\z@\dp}%
-  \edef\finsm@sh{\csname mb@#1\endcsname\z@\z@ \box\z@}%
-  \ifmmode \@xp\mathpalette\@xp\mathsm@sh
-  \else \@xp\makesm@sh
-  \fi
-}
-%    \end{macrocode}
-% \end{macro}
-%
-% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% \section{Extensible arrows}
-%
-%    The minus sign used in constructing these arrow fills is smashed so
-%    that superscripts above the arrows won't be too high. This
-%    primarily affects the \cn{xleftarrow} and \cn{xrightarrow} arrows.
-%
-%    \begin{macrocode}
-\mathchardef\std@minus\mathcode`\-\relax
-\mathchardef\std@equal\mathcode`\=\relax
-%    \end{macrocode}
-%    In case some alternative math fonts are loaded later:
-%    \begin{macrocode}
-\AtBeginDocument{%
-  \mathchardef\std@minus\mathcode`\-\relax
-  \mathchardef\std@equal\mathcode`\=\relax
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\relbar{\mathrel{\mathpalette\mathsm@sh\std@minus}}
-\def\Relbar{\mathrel\std@equal}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\arrowfill@#1#2#3#4{%
-  $\m@th\thickmuskip0mu\medmuskip\thickmuskip\thinmuskip\thickmuskip
-   \relax#4#1\mkern-7mu%
-   \cleaders\hbox{$#4\mkern-2mu#2\mkern-2mu$}\hfill
-   \mkern-7mu#3$%
-}
-\def\leftarrowfill@{\arrowfill@\leftarrow\relbar\relbar}
-\def\rightarrowfill@{\arrowfill@\relbar\relbar\rightarrow}
-\def\leftrightarrowfill@{\arrowfill@\leftarrow\relbar\rightarrow}
-\def\Leftarrowfill@{\arrowfill@\Leftarrow\Relbar\Relbar}
-\def\Rightarrowfill@{\arrowfill@\Relbar\Relbar\Rightarrow}
-\def\Leftrightarrowfill@{\arrowfill@\Leftarrow\Relbar\Rightarrow}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\overarrow@#1#2#3{\vbox{\ialign{##\crcr#1#2\crcr
- \noalign{\nointerlineskip}$\m@th\hfil#2#3\hfil$\crcr}}}
-\renewcommand{\overrightarrow}{%
-  \mathpalette{\overarrow@\rightarrowfill@}}
-\renewcommand{\overleftarrow}{%
-  \mathpalette{\overarrow@\leftarrowfill@}}
-\newcommand{\overleftrightarrow}{%
-  \mathpalette{\overarrow@\leftrightarrowfill@}}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\underarrow@#1#2#3{%
- \vtop{\ialign{##\crcr$\m@th\hfil#2#3\hfil$\crcr
- \noalign{\nointerlineskip\kern1.3\ex@}#1#2\crcr}}}
-\newcommand{\underrightarrow}{%
-  \mathpalette{\underarrow@\rightarrowfill@}}
-\newcommand{\underleftarrow}{%
-  \mathpalette{\underarrow@\leftarrowfill@}}
-\newcommand{\underleftrightarrow}{%
-  \mathpalette{\underarrow@\leftrightarrowfill@}}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-%\newcommand{\xrightarrow}[2][]{\ext@arrow 0359\rightarrowfill@{#1}{#2}}
-\def\ext@arrow#1#2#3#4#5#6#7{%
-  \mathrel{\mathop{%
-%    \end{macrocode}
-%    Measure the superscript and subscript.
-%    \begin{macrocode}
-    \setbox\z@\hbox{#5\displaystyle}%
-    \setbox\tw@\vbox{\m@th
-      \hbox{$\scriptstyle\mkern#3mu{#6}\mkern#4mu$}%
-      \hbox{$\scriptstyle\mkern#3mu{#7}\mkern#4mu$}%
-      \copy\z@
-    }%
-    \hbox to\wd\tw@{\unhbox\z@}}%
-%    \end{macrocode}
-%    We don't want to place an empty subscript since that will produce
-%    too much blank space below the arrow.
-%    \begin{macrocode}
-  \limits
-    \@ifnotempty{#7}{^{\if0#1\else\mkern#1mu\fi
-                       #7\if0#2\else\mkern#2mu\fi}}%
-    \@ifnotempty{#6}{_{\if0#1\else\mkern#1mu\fi
-                       #6\if0#2\else\mkern#2mu\fi}}}%
-}
-%    \end{macrocode}
-%
-%    Some extensible arrows to serve as mathrels and taking
-%    sub/superscripts. These commands are robust because they take an
-%    optional argument.
-%    \begin{macrocode}
-\newcommand{\xrightarrow}[2][]{\ext@arrow 0359\rightarrowfill@{#1}{#2}}
-\newcommand{\xleftarrow}[2][]{\ext@arrow 3095\leftarrowfill@{#1}{#2}}
-%    \end{macrocode}
-%
-% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% \section{Array-related environments}
-% \subsection{Remarks}
-%
-%    Because these environments can be nested within the equation
-%    structures that allow \cn{tag}, there is some cross-influence in
-%    the internal workings of the \cn{\\} command.
-%
-% \subsection{The \cn{substack} command}
-%
-%    The \cn{substack} command can be used to set subscripts
-%    and superscripts that consist of several lines. Usage:
-% \begin{verbatim}
-% X_{\substack{a=1\\b=2}}
-% \end{verbatim}
-%
-% \changes{v2.0}{1999/06/17}{Removed environment definitions: Sb, Sp}
-%
-% \begin{environment}{subarray}
-%    The \env{subarray} environment makes a small-size array suitable
-%    for use in a subscript or superscript. At the moment the supported
-%    arguments are not the full possibilities of \env{array} but only
-%    |c| or |l| for centered or left-aligned. And only one column.
-%    \begin{macrocode}
-\newenvironment{subarray}[1]{%
-%    \end{macrocode}
-%    Note: The predecessors of \env{subarray} (\env{Sb} and \env{Sp},
-%    inherited from \amstex/) used \cs{vbox} instead of \cs{vcenter}.
-%    But when a multiline subscript is placed in \cs{limits} position
-%    \cs{vcenter} is no worse than \cs{vbox}, and when it is placed
-%    in the \cs{nolimits} position (e.g., for an integral), \cs{vcenter}
-%    provides clearly better positioning than \cs{vbox}.
-%    \begin{macrocode}
-  \vcenter\bgroup
-%    \end{macrocode}
-%    Use \cs{Let@} to set the proper meaning of the \cn{\\} and \cn{\\*}
-%    commands. And restore the meaning of \cs{math@cr@@@} to \cs{cr}
-%    (see above) in case \env{subarray} is used inside one of the more
-%    complicated alignment macros where the meaning of \cs{math@cr@@@}
-%    is different. Similarly, call \cs{default@tag} to ensure that a
-%    line break here doesn't get an equation number!
-%    \begin{macrocode}
-  \Let@ \restore@math@cr \default@tag
-%    \end{macrocode}
-%    Set the line spacing to be the same as \cs{atop} (when \cs{atop}
-%    occurs in \cs{textstyle} or smaller), cf \textit{The \tex/book},
-%    Appendix G.
-%    \begin{macrocode}
-  \baselineskip\fontdimen10 \scriptfont\tw@
-  \advance\baselineskip\fontdimen12 \scriptfont\tw@
-  \lineskip\thr@@\fontdimen8 \scriptfont\thr@@
-  \lineskiplimit\lineskip
-%    \end{macrocode}
-%    Start the \cs{vbox} \cs{halign} structure that encloses the
-%    contents. Notice that we never get \cs{scriptscriptstyle}. That
-%    would require a \cs{mathchoice} (ugh).
-%    \begin{macrocode}
-  \ialign\bgroup\ifx c#1\hfil\fi
-    $\m@th\scriptstyle##$\hfil\crcr
-}{%
-  \crcr\egroup\egroup
-}
-%    \end{macrocode}
-% \end{environment}
-%
-% \begin{macro}{\substack}
-%    The \cn{substack} command is just an abbreviation for the
-%    most common use of \env{subarray}.
-%    \begin{macrocode}
-\newcommand{\substack}[1]{\subarray{c}#1\endsubarray}
-%    \end{macrocode}
-% \end{macro}
-%
-% \subsection{Matrices}
-%
-% \begin{environment}{smallmatrix}
-%    \env{smallmatrix} is again an alignment, this time in a centered
-%    box. The opening incantations are basically the same as those in
-%    \cs{multilimits@}, followed by the alignment itself. A remark:
-%    the baselineskip (|9\ex@|) used in \amstex/ is too large for
-%    use in text with the usual baselineskip of $12$ or $13$ points; we
-%    change it here to |6\ex@| and also adjust the \cs{lineskip}
-%    and \cs{lineskiplimit} slightly to compensate. (MJD)
-%    \begin{macrocode}
-\newenvironment{smallmatrix}{\null\,\vcenter\bgroup
-  \Let@\restore@math@cr\default@tag
-  \baselineskip6\ex@ \lineskip1.5\ex@ \lineskiplimit\lineskip
-  \ialign\bgroup\hfil$\m@th\scriptstyle##$\hfil&&\thickspace\hfil
-  $\m@th\scriptstyle##$\hfil\crcr
-}{%
-  \crcr\egroup\egroup\,%
-}
-%    \end{macrocode}
-% \end{environment}
-%
-% \begin{environment}{matrix}
-%    The \env{matrix} environment is just an \env{array} that provides
-%    up to ten centered columns, so that users don't have to give the
-%    col-spec argument explicitly---unless they want some of the columns
-%    noncentered, that is. The maximum number of columns is actually not
-%    fixed at ten but given by the counter |MatrixCols|, and can
-%    therefore be increased by changing that counter.
-%
-%    The extra space of \cn{arraycolsep} that \env{array} adds on each
-%    side is a waste so we remove it here (perhaps we should instead
-%    remove it from \env{array} in general, but that's a harder task).
-%
-%    TODO: Think about re-implementing \cn{matrix} to get rid of the
-%    \cs{c@MatrixCols} limit and have hard-wired preamble that doesn't
-%    have to be rebuilt each time.
-%
-%    We must use \cn{renewenvironment} for \env{matrix} and
-%    \env{pmatrix} because \latex/ doesn't kill the definitions found in
-%    \fn{plain.tex}, even though it probably should because of their
-%    foreign syntax.
-%    \begin{macrocode}
-\renewenvironment{matrix}{%
-  \matrix@check\matrix\env@matrix
-}{%
-  \endarray \hskip -\arraycolsep
-}
-%    \end{macrocode}
-% \end{environment}
-%
-%  \begin{macro}{\env@matrix}
-%
-%    \begin{macrocode}
-\def\env@matrix{\hskip -\arraycolsep
-  \let\@ifnextchar\new@ifnextchar
-  \array{*\c@MaxMatrixCols c}}
-%    \end{macrocode}
-%  \end{macro}
-%
-% \begin{macro}{\c@MaxMatrixCols}
-%    \begin{macrocode}
-\newcount\c@MaxMatrixCols \c@MaxMatrixCols=10
-%    \end{macrocode}
-% \end{macro}
-%
-%  \begin{macro}{\matrix@check}
-%    For various reasons, authors sometimes use the Plain \TeX{} form of
-%    \cn{matrix} or \cn{pmatrix} in \LaTeX{} documents. If they later
-%    add an invocation of the \pkg{amsmath} package to their document,
-%    the Plain \TeX{} syntax would lead to rather unintelligible error
-%    messages. The \cs{matrix@check} function does some checking to
-%    forestall that problem.
-%    \begin{macrocode}
-\def\matrix@check#1{%
-  \@xp\ifx\csname\@currenvir\endcsname#1%
-  \else\matrix@error#1%
-%    \end{macrocode}
-%    This error recovery is not that good but is better than the
-%    infinite loop that can result from calling \cs{array} without a
-%    matching \cs{endarray}. (The array setup leaves \cs{par} empty.)
-%    \begin{macrocode}
-    \@xp\@gobble
-  \fi
-}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{\matrix@error}
-%
-%    \begin{macrocode}
-\def\matrix@error#1{%
-  \@amsmath@err{%
-Old form `\string#1' should be \string\begin{\@xp\@gobble\string#1}%
-  }{%
-`\string#1{...}' is old Plain-TeX syntax whose use is
-ill-advised in LaTeX.%
-  }%
-}
-%    \end{macrocode}
-%  \end{macro}
-%
-%    \begin{macrocode}
-\renewenvironment{pmatrix}{%
-  \left(%
-  \matrix@check\pmatrix\env@matrix
-}{
-  \endmatrix\right)%
-}
-\newenvironment{bmatrix}{\left[\env@matrix}{\endmatrix\right]}
-\newenvironment{Bmatrix}{%
-  \left\lbrace\env@matrix
-}{%
-  \endmatrix\right\rbrace
-}
-\newenvironment{vmatrix}{\left\lvert\env@matrix}{\endmatrix\right\rvert}
-\newenvironment{Vmatrix}{\left\lVert\env@matrix}{\endmatrix\right\rVert}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\let\hdots\@ldots
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\newcommand{\hdotsfor}[1]{%
-  \ifx[#1\@xp\shdots@for\else\hdots@for\@ne{#1}\fi}
-\newmuskip\dotsspace@
-\def\shdots@for#1]{\hdots@for{#1}}
-\def\hdots@for#1#2{\multicolumn{#2}c%
-  {\m@th\dotsspace@1.5mu\mkern-#1\dotsspace@
-   \xleaders\hbox{$\m@th\mkern#1\dotsspace@.\mkern#1\dotsspace@$}%
-           \hfill
-   \mkern-#1\dotsspace@}%
-   }
-%    \end{macrocode}
-%
-% \begin{environment}{cases}
-%    The easiest way to produce the \env{cases} environment is to base
-%    it on the \env{array} environment. We must use
-%    \cn{renewenvironment} to override the definition of \cn{cases} that
-%    \latex/ (unwisely) leaves in place from \fn{plain.tex}.
-%    \begin{macrocode}
-\renewenvironment{cases}{%
-  \matrix@check\cases\env@cases
-}{%
-  \endarray\right.%
-}
-\def\env@cases{%
-  \let\@ifnextchar\new@ifnextchar
-  \left\lbrace
-  \def\arraystretch{1.2}%
-  \array{@{}l@{\quad}l@{}}%
-}
-%    \end{macrocode}
-% \end{environment}
-%
-%
-% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% \section{Equation sub-numbering}
-%
-%    \begin{macrocode}
-\newcounter{parentequation}% Counter for ``parent equation''.
-%    \end{macrocode}
-%
-%    We can't assume \cs{ignorespacesafterend} is defined since it was
-%    not there in the earliest releases of \latex/ 2e. And we need to
-%    include the \cs{global} for the same reason.
-%    \begin{macrocode}
-\@ifundefined{ignorespacesafterend}{%
-  \def\ignorespacesafterend{\global\@ignoretrue}%
-}{}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\newenvironment{subequations}{%
-%    \end{macrocode}
-%    Before sending down the `equation' counter to the subordinate
-%    level, add 1 using standard \cn{refstepcounter}.
-%    \begin{macrocode}
-  \refstepcounter{equation}%
-%    \end{macrocode}
-%    Define \cn{theparentequation} equivalent to current
-%    \cn{theequation}. \cn{edef} is necessary to expand the current
-%    value of the equation counter. This might in rare cases cause
-%    something to blow up, in which case the user needs to add
-%    \cn{protect}.
-%    \begin{macrocode}
-  \protected@edef\theparentequation{\theequation}%
-  \setcounter{parentequation}{\value{equation}}%
-%    \end{macrocode}
-%    And set the equation counter to 0, so that the normal incrementing
-%    processes in the various equation environments will produce the
-%    desired results.
-%    \begin{macrocode}
-  \setcounter{equation}{0}%
-  \def\theequation{\theparentequation\alph{equation}}%
-  \ignorespaces
-}{%
-  \setcounter{equation}{\value{parentequation}}%
-  \ignorespacesafterend
-}
-%    \end{macrocode}
-%
-% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% \section{Equation numbering}
-%
-%    In the multiline equation environments provided here, the task
-%    of equation numbering is linked to the task of line breaking
-%    in the sense that it is the \cn{\\} command that marks where an
-%    equation number for the current line will be processed and added to
-%    the page.
-%
-%    Provide a convenient way to specify that equations should be
-%    numbered within sections.
-%    \begin{macrocode}
-\newcommand{\numberwithin}[3][\arabic]{%
-  \@ifundefined{c@#2}{\@nocounterr{#2}}{%
-    \@ifundefined{c@#3}{\@nocnterr{#3}}{%
-      \@addtoreset{#2}{#3}%
-      \@xp\xdef\csname the#2\endcsname{%
-        \@xp\@nx\csname the#3\endcsname .\@nx#1{#2}}}}%
-}
-%    \end{macrocode}
-%
-%    To make references to equation numbers easier, we provide
-%    \cn{eqref}.  We almost don't need \cn{textup}, except that
-%    \cs{tagform@} doesn't supply the italic correction.
-%    \begin{macrocode}
-\newcommand{\eqref}[1]{\textup{\tagform@{\ref{#1}}}}
-%    \end{macrocode}
-%
-% \subsection{Preliminary macros}
-%
-%    The following macros implement the \latex/ syntax for the
-%    \cn{\\} command, i.e. the possibility to add an asterisk to
-%    inhibit a page break, or an optional argument to denote additional
-%    vertical space. They are modelled more or less after the
-%    corresponding macros for \latex/'s \env{eqnarray} and \env{array}
-%    environments.
-%
-%    [We can perhaps use the eqnarray mechanism if we change it so that
-%    it also uses \cs{openup}.]
-%
-% \begin{macro}{\dspbrk@lvl}
-%    We begin by defining the \cs{dspbrk@lvl} counter. This counter
-%    records the desirability of a break after the current row, as a
-%    number between $0$ and $4$. Its default value is $-1$ meaning that
-%    no explicit \cn{displaybreak} command was given, and the default
-%    \cs{interdisplaylinepenalty} is to be used.
-%    \begin{macrocode}
-\newcount\dspbrk@lvl
-\dspbrk@lvl=-1
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\interdisplaylinepenalty}
-%    We set the \cs{interdisplaylinepenalty} to $10000$.
-%    \begin{macrocode}
-\interdisplaylinepenalty\@M
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\allowdisplaybreaks}
-%    The \cn{allowdisplaybreaks} command. Since this is intended for use
-%    outside displayed formulas (typically in the preamble), it does not
-%    need to use \cs{new@ifnextchar}.
-%    \begin{macrocode}
-\newcommand{\allowdisplaybreaks}[1][4]{%
-  \interdisplaylinepenalty\getdsp@pen{#1}\relax
-}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\getdsp@pen}
-%    Modelled after \latex/'s \cs{@getpen}.  We use higher numbers
-%    than would normally be provided by \cs{@lowpenalty},
-%    \cs{@medpenalty}, and \cs{@highpenalty}, since display
-%    breaks are almost always less desirable.
-%    \begin{macrocode}
-\def\getdsp@pen#1{%
-  \ifcase #1\@M \or 9999 \or 6999 \or 2999 \or \z@\fi
-}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\displaybreak}
-% \begin{macro}{\dspbrk@}
-% \begin{macro}{\dspbrk@context}
-% \begin{macro}{\nogood@displaybreak}
-%    For breaks in a certain row of a alignment.
-%    \begin{macrocode}
-\newcommand{\displaybreak}{\new@ifnextchar[\dspbrk@{\dspbrk@[4]}}
-\chardef\dspbrk@context=\sixt@@n
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\dspbrk@[#1]{%
-  \ifmeasuring@
-  \else
-    \ifcase\dspbrk@context % case 0 --- OK
-      \global\dspbrk@lvl #1\relax
-    \or                    % case 1 --- inside a box
-      \nogood@displaybreak
-    \else                  % other cases --- outside of a display
-      \@amsmath@err{\Invalid@@\displaybreak}\@eha
-    \fi
-  \fi
-}
-%    \end{macrocode}
-%
-%    This is the value of \cn{displaybreak} when it occurs inside some
-%    structure where it will not work.
-%    \begin{macrocode}
-\def\nogood@displaybreak{%
-  \@amsmath@err{\protect
-\displaybreak\space cannot be applied here}%
-{One of the enclosing environments creates an
-  unbreakable box\MessageBreak
-(e.g., split, aligned, gathered, ...).}%
-}
-%    \end{macrocode}
-% \end{macro}
-% \end{macro}
-% \end{macro}
-% \end{macro}
-%
-% \begin{macro}{\math@cr}
-%    The macro \cs{math@cr} ends a row inside one of the equation
-%    environments, i.e., this is the internal name of the \cn{\\}
-%    commands in these environments. As usual for this kind of macro
-%    inside of alignments we insert a special brace into \tex/'s input
-%    stream. The initial \cs{relax} is needed to trigger entry into the
-%    \textit{u} template of the current column if the author ended the
-%    current row with an empty column (i.e., the mathcr was immediately
-%    preceded by an ampersand).
-%    \begin{macrocode}
-\def\math@cr{\relax\iffalse{\fi\ifnum0=`}\fi
-%    \end{macrocode}
-%    The first step is now to check whether an asterisk follows.
-%    \cs{@eqpen} is used to hold the penalty value to be put on
-%    the vertical list.
-%    Then we call up \cs{math@cr@} which performs the next step.
-%    If an asterisk is read page breaking is inhibited.
-%    \begin{macrocode}
-  \@ifstar{\global\@eqpen\@M\math@cr@}%
-%    \end{macrocode}
-%    Otherwise we have to check the \cs{dspbrk@lvl} value.
-%    \begin{macrocode}
-          {\global\@eqpen
-             \ifnum\dspbrk@lvl <\z@ \interdisplaylinepenalty
-              \else -\@getpen\dspbrk@lvl \fi
-           \math@cr@}}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\math@cr@}
-%    The purpose of \cs{math@cr@} is to check whether an optional
-%    argument follows.  If not it provides \cs{z@} as default
-%    value.
-%    \begin{macrocode}
-\def\math@cr@{\new@ifnextchar[\math@cr@@{\math@cr@@[\z@]}}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\math@cr@@}
-%    \cs{math@cr@@} closes the special brace opened in
-%    \cs{math@cr}, and calls \cs{math@cr@@@} which is supposed
-%    the `real' row ending command.  The meaning of this macro depends
-%    on the environment in which it is used.
-%    \begin{macrocode}
-\def\math@cr@@[#1]{\ifnum0=`{\fi \iffalse}\fi\math@cr@@@
-%    \end{macrocode}
-%    Finally we put the additional space onto the vertical list.
-%    \begin{macrocode}
-  \noalign{\vskip#1\relax}}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\Let@}
-%    \cs{Let@} is called by all environments where \cn{\\}
-%    ends a row of an alignment.
-%    \begin{macrocode}
-\def\Let@{\let\\\math@cr}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\restore@math@cr}
-%    We mentioned already that the exact meaning of \cs{math@cr@@@}
-%    depends on the current environment.  Since it is often a simple
-%    \cs{cr} we provide \cs{restore@math@cr} to reset it.
-%    \begin{macrocode}
-\def\restore@math@cr{\def\math@cr@@@{\cr}}
-%    \end{macrocode}
-%    This is also the default case.
-%    \begin{macrocode}
-\restore@math@cr
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\intertext}
-% \begin{macro}{\intertext@}
-%    The \cn{intertext} command is used for inserting text between the
-%    rows of an alignment. It might better be done as an environment,
-%    but the \cs{begingroup} from \cn{begin} would cause the
-%    \cs{noalign} to fail.
-%    \begin{macrocode}
-\newcommand{\intertext}{\@amsmath@err{\Invalid@@\intertext}\@eha}
-%    \end{macrocode}
-%    \cs{intertext@} is called by all environments that allow the use of
-%    the \cn{intertext} command.
-%    \begin{macrocode}
-\def\intertext@{%
-  \def\intertext##1{%
-%    \end{macrocode}
-%    If current mode is not vmode, the most likely reason is that the
-%    writer forgot the \cn{\\} that is supposed to precede
-%    \cn{intertext}. All right, then, let's try adding it our ownself.
-%    But, to be slightly careful: \cn{\\} does a futurelet, and it's
-%    slightly dangerous to allow a letted token to barge around loose in
-%    our internal code when it has been let to a conditional token
-%    like \cs{fi}. So let's interpose something in front of the \cs{fi}
-%    for the futurelet to take instead. (And careful again: it has to be
-%    something evanescent, not (e.g.) \cs{relax} which would cause the
-%    next halign cell to fire up and keep \cs{noalign} from working.)
-%    \begin{macrocode}
-    \ifvmode\else\\\@empty\fi
-    \noalign{%
-      \penalty\postdisplaypenalty\vskip\belowdisplayskip
-      \vbox{\normalbaselines
-%    \end{macrocode}
-%    We need to do something extra if the outside environment is a list
-%    environment. I don't see offhand an elegant way to test ``are we
-%    inside any list environment'' that is both easy and reliable (for
-%    example, checking for zero \cs{@totalleftmargin} wouldn't catch the
-%    case where \cs{@totalleftmargin} is zero but \cs{linewidth} is less
-%    than \cs{columnwidth}), so it seems to me checking \cs{linewidth}
-%    is the best practical solution.
-%    \begin{macrocode}
-        \ifdim\linewidth=\columnwidth
-        \else \parshape\@ne \@totalleftmargin \linewidth
-        \fi
-        \noindent##1\par}%
-      \penalty\predisplaypenalty\vskip\abovedisplayskip%
-    }%
-}}
-%    \end{macrocode}
-% \end{macro}
-% \end{macro}
-%
-%
-% \subsection{Implementing tags and labels}
-%
-%    In this section we describe some of the macros needed to make the
-%    \cn{tag} command work in various places. We start by defining a
-%    help text to be used when a \cn{tag} command is used somewhere
-%    it should not appear.
-%
-% \begin{macro}{\tag@help}
-%    This is the default error help text provided when \cn{tag}
-%    generates an error message.
-%    Note that \cs{newhelp} generates a control sequence name
-%    from the string given as its argument so that a leading
-%    backslash is provided automatically.
-%    \begin{macrocode}
-\newhelp\tag@help
-  {tag cannot be used at this point.\space
-   If you don't understand why^^Jyou should consult
-   the documentation.^^JBut don't worry: just continue, and I'll
-   forget what happened.}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\gobble@tag}
-%    This macro is to be used when \cn{tag} should silently
-%    skip its argument.
-%    It is made to handle the \qc{\*}-form of \cn{tag} as well.
-%    \begin{macrocode}
-\def\gobble@tag{\@ifstar\@gobble\@gobble}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\invalid@tag}
-%    \cs{invalid@tag} is a macro that should be used whenever
-%    \cn{tag} appears in an illegal place.
-%    It sets up \cs{tag@help} (as defined above) as help message,
-%    prints its argument as error message, and skips \cn{tag}'s
-%    argument.
-%    \begin{macrocode}
-\def\invalid@tag#1{\@amsmath@err{#1}{\the\tag@help}\gobble@tag}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\dft@tag}
-% \begin{macro}{\default@tag}
-%    \cs{dft@tag} provides a convenient way to disallow the
-%    use of \cn{tag} at certain points.
-%    One simply has to write
-%    \begin{verbatim}
-%\let\tag\dft@tag
-%    \end{verbatim}
-%    and the \cn{tag} command will produce an error message,
-%    with a suitable error help text, and discard its argument.
-%    \begin{macrocode}
-\def\dft@tag{\invalid@tag{\string\tag\space not allowed here}}
-%    \end{macrocode}
-%    Since this is used several times we provide an abbreviation for
-%    it.
-%    \begin{macrocode}
-\def\default@tag{\let\tag\dft@tag}
-%    \end{macrocode}
-%    Since this is also the default, i.e.\ the \cn{tag} command
-%    should not be used except in special places, we issue a
-%    \cs{default@tag} command.
-%    \begin{macrocode}
-\default@tag
-%    \end{macrocode}
-% \end{macro}
-% \end{macro}
-%
-%    Now that we have taken care of the case that \cn{tag} is not
-%    allowed we will provide some macros to process tags appropriately.
-%    As the user documentation states, a \cn{tag} command (without
-%    the asterisk typesets its argument according to the document
-%    styles' conventions, whereas a \cn{tag*} command typesets its
-%    argument exactly as given. We define therefore the following
-%    interface:
-%
-% \begin{macro}{\maketag@@}
-% \begin{macro}{\maketag@@@}
-% \begin{macro}{\tagform@}
-%    \cn{tag} is supposed to call \cs{maketag@@} which checks
-%    whether an asterisk follows. If this is the case it calls up
-%    \cs{maketag@@@} which sets its argument `as is'. Otherwise
-%    \cs{tagform@} is called to do the job. (This macro is to be
-%    defined appropriately by the document style.)
-%    \begin{macrocode}
-\def\maketag@@{\@ifstar\maketag@@@\tagform@}
-%    \end{macrocode}
-%    We define \cs{maketag@@@} to use the normal font of the document
-%    text (since this is the usual practice for numbering of document
-%    elements) and to put a box around the tag. Furthermore we use
-%    \cs{m@th} for exceptional cases where the tag involves a
-%    superscript or some such math. (Probably from an explicit use of
-%    \cs{tag*} rather than from the automatic numbering.)
-%    \begin{macrocode}
-\def\maketag@@@#1{\hbox{\m@th\normalfont#1}}
-%    \end{macrocode}
-%    We use the following default definition for \cs{tagform@}
-%    that puts only parentheses around the tag.
-%    \begin{macrocode}
-\def\tagform@#1{\maketag@@@{(\ignorespaces#1\unskip\@@italiccorr)}}
-%    \end{macrocode}
-% \end{macro}
-% \end{macro}
-% \end{macro}
-%
-%    We need to insinuate \cs{tagform@} into \cs{@eqnnum} in case
-%    \env{eqnarray} is used (probably in a document that was originally
-%    written without use of the \pkg{amsmath} package).
-%    \begin{macrocode}
-\iftagsleft@
-  \def\@eqnnum{\hbox to1sp{}\rlap{\normalfont\normalcolor
-    \hskip -\displaywidth\tagform@\theequation}}
-\else
-  \def\@eqnnum{{\normalfont\normalcolor \tagform@\theequation}}
-\fi
-%    \end{macrocode}
-%
-% \begin{macro}{\thetag}
-%    Sometimes one needs to set a literal tag according to the rules of
-%    the document style. To achieve this we provide the \cn{thetag}
-%    command. It typesets its argument by calling \cs{tagform@} on
-%    it.
-%    \begin{macrocode}
-\newcommand{\thetag}{\leavevmode\tagform@}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\df@tag}
-% \begin{macro}{\make@df@tag}
-% \begin{macro}{\make@df@tag@@}
-% \begin{macro}{\make@df@tag@@@}
-%    Sometimes it is necessary for a \cn{tag} command to store a tag
-%    in a safe place and to process it later, e.g., for a tag in a row
-%    of an alignment where the tag can only be typeset when the
-%    \cn{\\} at the end of the row was seen. Such a tag is stored in
-%    the macro \cs{df@tag} (for `deferred tag'). For this purpose we
-%    provide the \cs{make@df@tag} macro. It is built very similar to
-%    the \cs{maketag@@} macro above.
-%    \begin{macrocode}
-\let\df@tag\@empty
-\def\make@df@tag{\@ifstar\make@df@tag@@\make@df@tag@@@}
-%    \end{macrocode}
-%    \cs{make@df@tag} sets \cs{@currentlabel} and defines
-%    \cs{df@tag} appropriately.
-%
-%    To simplify the task of tracking \cs{tag} and \cs{label}
-%    commands inside math display environments, we defer \cs{label}
-%    commands until the tag is typeset, similar to the way that
-%    \cs{tag}s themselves are deferred.  This allows arbitrary
-%    placement of \cs{label} and \cs{tag} commands and also means we
-%    only increment the \cs{equation} counter when we really need to,
-%    thus avoiding the \cs{setb@ck} nonsense that used to be required.
-%
-%    \begin{macrocode}
-\def\make@df@tag@@#1{%
-  \gdef\df@tag{\maketag@@@{#1}\def\@currentlabel{#1}}}
-%    \end{macrocode}
-%    Autogenerated number:
-%    \begin{macrocode}
-\def\make@df@tag@@@#1{\gdef\df@tag{\tagform@{#1}%
-  \toks@\@xp{\p@equation{#1}}\edef\@currentlabel{\the\toks@}}}
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%    \end{macro}
-%    \end{macro}
-%
-%    \begin{macro}{\ltx@label}
-%    \begin{macro}{\label@in@display}
-%    \begin{macro}{\df@label}
-%    Next, we store the default definition of \cs{label} in
-%    \cs{ltx@label} and then define a new version of \cs{label} for use
-%    in math display environments. \cs{label@in@display} merely issues a
-%    warning message if there is already a pending label (which will be
-%    discarded) and then stores the label in \cs{df@label}.
-%    \begin{macrocode}
-\let\ltx@label\label
-%
-\def\label@in@display{%
-    \ifx\df@label\@empty\else
-        \@amsmath@err{Multiple \string\label's:
-            label '\df@label' will be lost}\@eha
-    \fi
-    \gdef\df@label
-}
-%    \end{macrocode}
-%    In case there is an enumerate inside a minipage inside an equation,
-%    we need to reset \cn{label} to its normal value:
-%    \begin{macrocode}
-\toks@\@xp{\@arrayparboxrestore \let\label\ltx@label}%
-\edef\@arrayboxrestore{\the\toks@}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\let\df@label\@empty
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%    \end{macro}
-%
-%    \begin{macro}{\make@display@tag}
-%    Now we define a macro to process \cs{tag} and \cs{label} commands
-%    in various display environments.  If the |@eqnsw| switch is set,
-%    then we should supply an equation number; otherwise, if the
-%    |@tag| switch is set, we should use the tag stored in
-%    \cs{df@tag}.  Finally, we process any pending \cs{label}s.
-%
-%    TODO: Arguably, \cs{make@display@tag} should issue a warning
-%    message if there is a \cs{label} but neither a tag nor an
-%    equation number.  Also, it would probably be worthwhile to
-%    explore whether \cs{iftag@} could be done away with and replaced
-%    by checks to see if \cs{df@tag} is empty or not.
-%    \begin{macrocode}
-\def\make@display@tag{%
-  \if@eqnsw \incr@eqnum \print@eqnum
-  \else \iftag@ \df@tag \global\let\df@tag\@empty \fi
-  \fi
-%    \end{macrocode}
-%    Need to check the \cs{ifmeasuring@} flag otherwise the \cs{write}
-%    node from \cn{label} might be discarded in a temp box and clearing
-%    \cs{df@label} will keep it from being reiterated on the real
-%    typesetting pass.
-%    \begin{macrocode}
-  \ifmeasuring@
-  \else
-    \ifx\df@label\@empty
-    \else
-      \@xp\ltx@label\@xp{\df@label}%
-      \global\let\df@label\@empty
-    \fi
-  \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    Now we define the special versions of \cn{tag} used within the
-%    \env{align} environments.
-%
-% \begin{macro}{\tag@in@align}
-%    The \cn{tag} command may only appear once in a row of
-%    an alignment.  Therefore we first check the switch |tag@|
-%    that is set to false at the begin of every row.
-%    If this switch is true a \cn{tag} was already given in this
-%    row and we define \cs{next@} to expand to a call to
-%    \cs{invalid@tag}.
-%    \begin{macrocode}
-\def\tag@in@align{%
-    \relax
-    \iftag@
-        \DN@{\invalid@tag{Multiple \string\tag}}%
-    \else
-%    \end{macrocode}
-%    Otherwise we set the |tag@| switch.  But there is more to
-%    be done: we must also prevent the automatic generation of a
-%    tag.  Therefore we also reset the |@eqnsw|.
-%    \begin{macrocode}
-    \global\tag@true
-%    \end{macrocode}
-%    Changed to \cs{nonumber}, since that seems to be all that's
-%    required.---dmj, 1994/12/21
-%    \begin{macrocode}
-    \nonumber
-%    \end{macrocode}
-%    Within a row of an \env{align} environment the \cn{tag}
-%    command must not typeset the tag immediately since its
-%    position can be determined only later.
-%    Therefore we use the \cs{make@df@tag} macro defined
-%    earlier.
-%    Finally we call \cs{next@} to process the argument
-%    that follows.
-%    \begin{macrocode}
-        \let\next@\make@df@tag
-    \fi
-    \next@
-}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\raisetag}
-%    Usage: \cn{raisetag} \meta{dimen}
-%
-%    This will modify the vertical placement of the tag of the current
-%    equation by \meta{dimen}. Note that according to the current uses
-%    of \cs{raise@tag} in e.g., \cs{place@tag@gather}, no adjustment
-%    occurs if the tag falls in its normal position; i.e., \cn{raisetag}
-%    has no effect unless the tag has already been shifted off-line.
-%
-%    \begin{macrocode}
-\newcommand{\raisetag}[1]{\skip@#1\relax
-  \xdef\raise@tag{\vskip\iftagsleft@\else-\fi\the\skip@\relax}%
-}
-%    \end{macrocode}
-%    \cn{raise@tag} will be reemptied at the beginning of each equation,
-%    which might occur at a |\begin{xxx}| or \cn{\\}.
-%    \begin{macrocode}
-\let\raise@tag\@empty
-%    \end{macrocode}
-%    \end{macro}
-%
-% \begin{macro}{\notag}
-%    For consistency we provide \cn{notag}, equivalent to
-%    \cn{nonumber}. The alternative would have been to rename
-%    \cn{tag} as \cn{number} to go along with \cn{nonumber},
-%    but of course \cs{number} is a \tex/ primitive that should not
-%    be redefined.
-%    \begin{macrocode}
-\newcommand{\notag}{\nonumber}
-%    \end{macrocode}
-% \end{macro}
-%
-%  \begin{macro}{\nonumber}
-%    Need to add some additional code to \cn{nonumber} to deal with some
-%    complications related to nested environments.
-%    \begin{macrocode}
-\renewcommand{\nonumber}{%
-  \if@eqnsw
-    \ifx\incr@eqnum\@empty \addtocounter{equation}\m@ne \fi
-  \fi
-  \let\print@eqnum\@empty \let\incr@eqnum\@empty
-  \global\@eqnswfalse
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\print@eqnum{\tagform@\theequation}
-\def\incr@eqnum{\refstepcounter{equation}\let\incr@eqnum\@empty}
-%    \end{macrocode}
-%  \end{macro}
-%
-% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% \section{Multiline equation environments}
-%
-% \subsection{Remarks}
-%
-%    In late 1994 David M. Jones did a thorough overhaul of these
-%    environments so that the number placement and a few other aspects
-%    are substantially improved over the original versions that were
-%    ported essentially unchanged from \fn{amstex.tex} in 1989. Most of
-%    the commentary in this section is DMJ's, and comments of any
-%    significance that I added are marked by my initials and date
-%    [mjd, 1995/01/11].
-%
-% \subsection{Preliminaries}
-%
-% \begin{macro}{\ifinalign@}
-% \begin{macro}{\ifingather@}
-%    We define two switches that are set to true in certain
-%    alignments: |inalign@| and |ingather@| inside of
-%    the \env{align} and \env{gather} environments.
-%    These switches are needed to control certain actions that
-%    depend on the surrounding conditions, more specifically:
-%    on the setting already done by the surrounding environments.
-%    \begin{macrocode}
-\newif\ifinalign@
-\newif\ifingather@
-%    \end{macrocode}
-% \begin{histnote}
-% Removed the \cs{ifinany@} test [mjd,1999/06/28] since it was mainly
-% used for the purpose now handled by \cs{spread@equation}.
-% \changes{v1.2g}{1999/06/28}{Removed ifinany@}
-% \end{histnote}
-% \end{macro}
-% \end{macro}
-%
-% \begin{macro}{\@arrayparboxrestore}
-%    Here we must reset a few additional parameters.
-%    \begin{macrocode}
-\@xp\def\@xp\@arrayparboxrestore\@xp{\@arrayparboxrestore
-  \ingather@false\inalign@false \default@tag
-  \let\spread@equation\@spread@equation
-  \let\reset@equation\@empty
-  \def\print@eqnum{\tagform@\theequation}%
-  \def\incr@eqnum{\refstepcounter{equation}\let\incr@eqnum\@empty}%
-}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\iftag@}
-%    The switch |tag@| is set to false at the beginning of every
-%    row and set to true by a \cn{tag} command.
-%    This allows us to check whether there is more than one tag on
-%    a row.
-%    \begin{macrocode}
-\newif\iftag@
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\ifst@rred}
-%    The switch |st@rred| is set to true by all starred
-%    environments
-%    and set to false by the unstarred versions.
-%    \begin{macrocode}
-\newif\ifst@rred
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\ifmeasuring@}
-%    All display environments get typeset twice---once during a
-%    ``measuring'' phase and then again during a ``production'' phase;
-%    \cs{ifmeasuring@} will be used to determine which case we're in,
-%    so we can take appropriate action.
-%
-%    \begin{macrocode}
-\newif\ifmeasuring@
-%    \end{macrocode}
-% \end{macro}
-%
-%    \begin{macro}{\ifshifttag@}
-%    \cs{ifshifttag@} is used by \env{gather} to communicate between
-%    \cs{calc@shift@gather} and \cs{place@tag@gather} whether an
-%    equation tag should be shifted to a separate line.  It's also
-%    used by \env{multline}.
-%    \begin{macrocode}
-\newif\ifshifttag@
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\row@}
-%    \begin{macrocode}
-\newcount\row@
-%    \end{macrocode}
-%    \end{macro}
-%
-% \begin{macro}{\column@}
-%    The counter \cs{column@} is used by the alignment macros to
-%    keep track of the current column.
-%
-%    \begin{macrocode}
-\newcount\column@
-%    \end{macrocode}
-% \end{macro}
-%
-%  \begin{macro}{\column@plus}
-%    \cs{\column@plus} is a useful abbreviation.
-%    \begin{macrocode}
-\def\column@plus{%
-    \global\advance\column@\@ne
-}
-%    \end{macrocode}
-%  \end{macro}
-%
-%    \begin{macro}{\maxfields@}
-%    \begin{macrocode}
-\newcount\maxfields@
-%    \end{macrocode}
-%    \end{macro}
-%
-%  \begin{macro}{\add@amp}
-%  \begin{macro}{\add@amps}
-%    \begin{macrocode}
-\def\add@amp#1{\if m#1&\@xp\add@amp\fi}
-\def\add@amps#1{%
-    \begingroup
-    \count@#1\advance\count@-\column@
-    \edef\@tempa{\endgroup
-      \@xp\add@amp\romannumeral\number\count@ 000q}%
-    \@tempa
-}
-%    \end{macrocode}
-%  \end{macro}
-%  \end{macro}
-%
-% \begin{macro}{\andhelp@}
-%    The help text stored in \cs{andhelp@} is used for errors
-%    generated by too many \qc{\&} characters in a row.
-%    \begin{macrocode}
-\newhelp\andhelp@
-{An extra & here is so disastrous that you should probably exit^^J
-and fix things up.}
-%    \end{macrocode}
-% \end{macro}
-%
-%    \begin{macro}{\eqnshift@}
-%    \cs{eqnshift@} is used by \env{align} and \env{gather} as the
-%    indentation of the lines of the environment from the left margin.
-%    \begin{macrocode}
-\newdimen\eqnshift@
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\alignsep@}
-%    \begin{macrocode}
-\newdimen\alignsep@
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\tagshift@}
-%    \begin{macrocode}
-\newdimen\tagshift@
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\mintagsep}
-%    \cs{mintagsep} is the minimum allowable separation between an
-%    equation and its tag.  We set it to half a quad in
-%    \cs{textfont}2, which is \tex/'s built-in value.
-%    \begin{macrocode}
-\newcommand{\mintagsep}{.5\fontdimen6\textfont\tw@}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\minalignsep}
-%    This should probably be a skip register [mjd,1999/06/18]
-%    \begin{macrocode}
-\newcommand{\minalignsep}{10pt}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\tagwidth@}
-%    \begin{macrocode}
-\newdimen\tagwidth@
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\totwidth@}
-%    \begin{macrocode}
-\newdimen\totwidth@
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\lineht@}
-%    The dimen register \cs{lineht@} is used to keep track of the
-%    height (or depth, if tags are on the right) of a row in an
-%    alignment.
-%    \begin{macrocode}
-\newdimen\lineht@
-%    \end{macrocode}
-% \end{macro}
-%
-%    \begin{macro}{\tag@width}
-%    \begin{macro}{\savetaglength@}
-%    \begin{macro}{\shift@tag}
-%    \begin{macro}{\tag@shifts}
-%    \begin{macrocode}
-\def\tag@width#1{%
-    \ifcase\@xp#1\tag@lengths\fi
-}
-
-\def\savetaglength@{%
-    \begingroup
-        \let\or\relax
-        \xdef\tag@lengths{\tag@lengths\or \the\wdz@}%
-    \endgroup
-}
-
-\def\shift@tag#1{%
-    \ifcase\@xp#1\tag@shifts\fi\relax
-}
-
-\let\tag@shifts\@empty
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%    \end{macro}
-%    \end{macro}
-%
-%    \begin{macro}{\saveshift@}
-%    \begin{macrocode}
-\def\saveshift@#1{%
-    \begingroup
-        \let\or\relax
-        \xdef\tag@shifts{\or#1\tag@shifts}%
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%  \begin{macro}{\spread@equation}
-%    This does the line-spacing adjustment that is normally wanted for
-%    displayed equations. We also call \cs{reset@strutbox@} here because
-%    otherwise a preceding font size change might leave \cs{strutbox@}
-%    with wrong contents. This is a less-than-ideal solution but
-%    probably good enough for now, until the situation can be
-%    overhauled.
-%    \begin{macrocode}
-\def\spread@equation{\reset@strutbox@
-  \openup\jot \let\spread@equation\@empty}
-\let\@spread@equation\spread@equation
-%    \end{macrocode}
-%  \end{macro}
-%
-% \begin{macro}{\displ@y}
-% \begin{macro}{\displ@y@}
-% \begin{macro}{\@display@init}
-%    \cs{displ@y} is from \fn{plain.tex}, with
-%    \cs{interdisplaylinepenalty} changed to \cs{@eqpen}. Also we
-%    transplanted most of its internal organs to \cs{@display@init} to
-%    support \cs{displ@y@} and other possibilities. Don't try to make
-%    sense of these naming conventions! They are a narrowly calculated
-%    mishmash of Knuth/Spivak/Lamport/Mittelbach precedents. The reason
-%    for not cleaning them up and forcing all names to a consistent
-%    scheme is that then in principle we'd have to do it everywhere else
-%    too. And we programmers are paranoid about the side effects of name
-%    changes.
-%    \begin{macrocode}
-\def\displ@y{\@display@init{}}
-\def\@display@init#1{%
-    \global\dt@ptrue \spread@equation
-    \everycr{%
-        \noalign{%
-            #1%
-            \ifdt@p
-                \global\dt@pfalse
-                \vskip-\lineskiplimit
-                \vskip\normallineskiplimit
-            \else
-                \penalty\@eqpen \global\dspbrk@lvl\m@ne
-            \fi
-        }%
-    }%
-}
-%    \end{macrocode}
-%    \cs{displ@y@} is nearly the same; it additionally sets the |tag@|
-%    switch and the \cs{column@} and \cs{dspbrk@lvl} counters to their
-%    default values. The argument is normally a bit of code to empty out
-%    \cs{raise@tag}, but in \env{multline} we don't want that to happen
-%    in \cs{everycr}.
-%    \begin{macrocode}
-\def\displ@y@{\@display@init{%
-  \global\column@\z@ \global\dspbrk@lvl\m@ne
-  \global\tag@false \global\let\raise@tag\@empty
-}}
-%    \end{macrocode}
-% \end{macro}
-% \end{macro}
-% \end{macro}
-%
-% \begin{macro}{\black@}
-%    This macro is made to produce an overfull box message and
-%    possibly (depending on the value of \cs{overfullrule})
-%    a rule in the margin if the total width of an alignment
-%    is larger than the value of \cs{displaywidth}.
-%    \begin{macrocode}
-\def\black@#1{%
-    \noalign{%
-        \ifdim#1>\displaywidth
-            \dimen@\prevdepth
-            \nointerlineskip
-            \vskip-\ht\strutbox@
-            \vskip-\dp\strutbox@
-            \vbox{\noindent\hbox to#1{\strut@\hfill}}%
-            \prevdepth\dimen@
-        \fi
-    }%
-}
-%    \end{macrocode}
-% \end{macro}
-%
-%    \begin{macro}{\savecounters@}
-%    \begin{macro}{\restorecounters@}
-%    These are used during the measuring phase of the various display
-%    math environments to save and restore the values of all \latex/
-%    counters. We make these local to a group, so nested environments
-%    works.
-%
-%    Changed \cn{stepcounter} to |\csname c@...\endcsname| to avoid
-%    overhead of ifundefined test [mjd, 1995/01/20].
-%    \begin{macrocode}
-\def\savecounters@{%
-    \begingroup
-        \def\@elt##1{%
-          \global\csname c@##1\endcsname\the\csname c@##1\endcsname}%
-        \xdef\@gtempa{%
-            \cl@@ckpt
-            \let\@nx\restorecounters@\@nx\@empty
-        }%
-    \endgroup
-    \let\restorecounters@\@gtempa
-}
-%
-\let\restorecounters@\@empty
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%
-%    \begin{macro}{\savealignstate@}
-%    \begin{macro}{\restorealignstate@}
-%    These are used to save the values of various parameters that are
-%    shared by \env{align} and \env{gather} when the former is used
-%    inside the latter.
-%    \begin{macrocode}
-\def\savealignstate@{%
-    \begingroup
-        \let\or\relax
-        \xdef\@gtempa{%
-            \global\totwidth@\the\totwidth@
-            \global\row@\the\row@
-            \gdef\@nx\tag@lengths{\tag@lengths}%
-            \let\@nx\restorealignstate@\@nx\@empty
-        }%
-    \endgroup
-    \let\restorealignstate@\@gtempa
-}
-
-\let\restorealignstate@\@empty
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%
-%  \begin{macro}{\savecolumn@}
-%  \begin{macro}{\restorecolumn@}
-%
-%    \begin{macrocode}
-\def\savecolumn@{%
-  \edef\restorecolumn@{%
-    \global\column@\number\column@
-    \let\@nx\restorecolumn@\@nx\@empty
-  }%
-}
-\let\restorecolumn@\@empty
-%    \end{macrocode}
-%  \end{macro}
-%  \end{macro}
-%
-% \subsection{Scanning the environment's body}
-%
-%    Several of the math alignment macros must scan their body twice:
-%    once to determine how wide the columns are and then to actually
-%    typeset them. This means that we must collect all text in this body
-%    before calling the environment macros.
-%
-%    \begin{macro}{\@envbody}
-%    We start by defining a token register to contain the body.
-%    \begin{macrocode}
-\newtoks\@envbody
-%    \end{macrocode}
-% \end{macro}
-%
-%    \begin{macro}{\addto@envbody}
-%    Then we define a macro to add something (i.e.\ its argument) to the
-%    token register \cs{@envbody}.
-%    \begin{macrocode}
-\def\addto@envbody#1{\global\@envbody\@xp{\the\@envbody#1}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\collect@body}
-%    The macro \cs{collect@body} starts the scan for the |\end{...}|
-%    command of the current environment. It takes a macro name as
-%    argument. This macro is supposed to take the whole body of the
-%    environment as its argument. For example, |\begin{align}| would
-%    call |\collect@body\@align| if |@align#1{...}| is the macro that
-%    sets the alignment with body \arg{1}.
-%
-%    \begin{macrocode}
-\def\collect@body#1{%
-  \@envbody{\@xp#1\@xp{\the\@envbody}}%
-  \edef\process@envbody{\the\@envbody\@nx\end{\@currenvir}}%
-  \@envbody\@emptytoks \def\begin@stack{b}%
-%    \end{macrocode}
-%
-%    If we simply called \cs{collect@@body} directly,
-%    the error message for a \cn{par} token (usually from a blank line)
-%    would be
-% \begin{verbatim}
-% ! Paragraph ended before \collect@@body was complete.
-% \end{verbatim}
-%    But we use a little finesse to get a more intelligible error
-%    message:
-% \begin{verbatim}
-% ! Paragraph ended before \multline* was complete.
-% \end{verbatim}
-%    In order to avoid using up csnames unnecessarily we use the actual
-%    environment name as the name of the temporary function that is
-%    \cs{let} to \cs{collect@@body}; but then in order to preserve the
-%    theoretical possibility of nesting for environments that use
-%    \cs{collect@body} (not currently required by any \pkg{amsmath}
-%    environment [mjd,1999/06/23]), we do the \cs{let} inside a group.
-%    \begin{macrocode}
-  \begingroup
-  \@xp\let\csname\@currenvir\endcsname\collect@@body
-%    \end{macrocode}
-%    This small twist eliminates the need for \cs{expandafter}'s in
-%    \cs{collect@@body}.
-%    \begin{macrocode}
-  \edef\process@envbody{\@xp\@nx\csname\@currenvir\endcsname}%
-  \process@envbody
-}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{\push@begins}
-%    When adding a piece of the current environment's contents to
-%    \cs{@envbody}, we scan it to check for additional \cn{begin}
-%    tokens, and add a `b' to the stack for any that we find.
-%    \begin{macrocode}
-\def\push@begins#1\begin#2{%
-  \ifx\end#2\else b\@xp\push@begins\fi
-}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\collect@@body}
-%    \cs{collect@@body} takes two arguments: the first will consist of
-%    all text up to the next \cn{end} command, the second will be the
-%    \cn{end} command's argument. If there are any extra \cn{begin}
-%    commands in the body text, a marker is pushed onto a stack by the
-%    \cs{push@begins} function. Empty state for this stack means that we
-%    have reached the \cn{end} that matches our original \cn{begin}.
-%    Otherwise we need to include the \cn{end} and its argument in the
-%    material that we are adding to our environment body accumulator.
-%
-% \begin{histnote}
-%    In a former implementation, the error messages resulting from a
-%    typo in the environment name were unsatisfactory, because it was
-%    matching of the environment name that was used to determine the end
-%    of our environment body, instead of counting begin-end pairs.
-%    Thanks to Lars Hellstr\"{o}m for a suggestion that led to this
-%    improvement. [mjd,1999/06/23]
-% \end{histnote}
-%    \begin{macrocode}
-\def\collect@@body#1\end#2{%
-  \edef\begin@stack{\push@begins#1\begin\end \@xp\@gobble\begin@stack}%
-  \ifx\@empty\begin@stack
-    \endgroup
-    \@checkend{#2}%
-    \addto@envbody{#1}%
-  \else
-    \addto@envbody{#1\end{#2}}%
-  \fi
-  \process@envbody % A little tricky! Note the grouping
-}
-%    \end{macrocode}
-% \end{macro}
-%
-%
-% \subsection{Simple aligning environments}
-%
-%  \begin{macro}{\math@cr@@@aligned}
-%    From tabskip we get an extra space of minalignsep after every
-%    second column; but when this falls at the right edge of the whole
-%    aligned structure, we need to cancel that space.
-%    \begin{macrocode}
-\def\math@cr@@@aligned{%
-  \ifodd\column@ \let\next@\@empty
-  \else \def\next@{&\kern-\alignsep@}%
-  \fi
-  \next@ \cr
-}
-%    \end{macrocode}
-%  \end{macro}
-%
-%    \begin{macro}{\start@aligned}
-%    The \env{aligned} and \env{alignedat} environments are identical
-%    except that the latter takes a mandatory argument to specify the
-%    number of align structures, while the former allows any number of
-%    align structures automatically (the use of \env{alignedat} is
-%    deprecated).  So, they will be defined in terms of
-%    \cs{start@aligned}, which will take two arguments.  The first
-%    argument specifies the placement of the environments; it is
-%    either |c|, |t|, or |b|.  The second is the number of align
-%    structures; a value of~$-1$ means that an arbitrary number are
-%    allowed.
-%    \begin{macrocode}
-\newcommand{\start@aligned}[2]{%
-    \RIfM@\else
-        \nonmatherr@{\begin{\@currenvir}}%
-    \fi
-    \savecolumn@ % Assumption: called inside a group
-%    \end{macrocode}
-%    The \cs{null} here is to keep the \cs{,} glue from causing the
-%    invocation of the clause in \tex/'s built-in tag placement
-%    algorithm that can cause an equation to be shifted all the way over
-%    to the margin.
-%    \begin{macrocode}
-    \null\,%
-    \if #1t\vtop \else \if#1b \vbox \else \vcenter \fi \fi \bgroup
-        \maxfields@#2\relax
-        \ifnum\maxfields@>\m@ne
-            \multiply\maxfields@\tw@
-%    \end{macrocode}
-%    Introduced new \cs{math@cr@@@} so we can provide standard error
-%    message for too many \qc{\&}'s in \env{alignedat}.
-%    \begin{macrocode}
-            \let\math@cr@@@\math@cr@@@alignedat
-            \alignsep@\z@skip
-        \else
-            \let\math@cr@@@\math@cr@@@aligned
-            \alignsep@\minalignsep
-        \fi
-%    \end{macrocode}
-%    Reset the meaning of \cn{\\}.
-%    \begin{macrocode}
-        \Let@ \chardef\dspbrk@context\@ne
-%    \end{macrocode}
-%    Restore the default definition of \cn{tag} (error message), in
-%    case \env{aligned} is used inside, e.g., a \env{gather}
-%    environment that accepts \cn{tag}.
-%    \begin{macrocode}
-        \default@tag
-        \spread@equation % no-op if already called
-%    \end{macrocode}
-%    Finally we start the alignment itself. For \env{aligned} we add
-%    \cs{minalignsep} after every second column to mimic the
-%    behavior of \env{align}. For \env{alignedat} the user has to
-%    specify interalign space explicitly.
-%    \begin{macrocode}
-        \global\column@\z@
-        \ialign\bgroup
-           &\column@plus
-            \hfil
-            \strut@
-            $\m@th\displaystyle{##}$%
-            \tabskip\z@skip
-           &\column@plus
-            $\m@th\displaystyle{{}##}$%
-            \hfil
-            \tabskip\alignsep@
-            \crcr
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\math@cr@@@aligned}
-%    \cs{math@cr@@@aligned} checks to make sure the user hasn't put in
-%    too many \qc{\&}s in \env{alignedat}.  Since \env{alignedat}
-%    doesn't use \cs{displ@y@}, we also reset \cs{column@} here.  Note
-%    than in \env{aligned}, \cs{column@} will increase without bound,
-%    since it never gets reset, but this is harmless.
-%    \begin{macrocode}
-\def\math@cr@@@alignedat{%
-    \ifnum\column@>\maxfields@
-        \begingroup
-          \measuring@false
-          \@amsmath@err{Extra & on this line}%
-            {\the\andhelp@}% "An extra & here is disastrous"
-        \endgroup
-    \fi
-    \global\column@\z@
-    \cr
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%  \begin{macro}{\alignsafe@testopt}
-%    Testing for an optional argument can be really, really tricky in
-%    certain complicated contexts. This we discovered by getting some
-%    bug reports for uses of \env{aligned}. So here is a safer
-%    form of \latex/'s \cs{@testopt} function.
-%    \begin{macrocode}
-\def\alignsafe@testopt#1#2{%
-  \relax\iffalse{\fi\ifnum`}=0\fi
-  \@ifnextchar[%
-    {\let\@let@token\relax \ifnum`{=\z@\fi\iffalse}\fi#1}%
-    {\let\@let@token\relax \ifnum`{=\z@\fi\iffalse}\fi#1[#2]}%
-}
-%    \end{macrocode}
-%  \end{macro}
-%
-% \begin{environment}{aligned}
-%    The \env{aligned} environment takes an optional argument that
-%    indicates its vertical position in relation to surrounding
-%    material: |t|, |c|, or |b| for top, center, or bottom.
-%    \begin{macrocode}
-\newenvironment{aligned}{%
-  \let\@testopt\alignsafe@testopt
-  \aligned@a
-}{%
-  \crcr\egroup
-  \restorecolumn@
-  \egroup
-}
-\newcommand{\aligned@a}[1][c]{\start@aligned{#1}\m@ne}
-%    \end{macrocode}
-% \end{environment}
-%
-% \begin{environment}{alignedat}
-%    To get a top or bottom positioned \env{alignedat} structure, you
-%    would write something like
-% \begin{verbatim}
-% \begin{alignedat}[t]{3}
-% \end{verbatim}
-%
-%    \begin{macrocode}
-\newenvironment{alignedat}{%
-  \let\@testopt\alignsafe@testopt
-  \alignedat@a
-}{%
-  \endaligned
-}
-\newcommand{\alignedat@a}[1][c]{\start@aligned{#1}}
-%    \end{macrocode}
-% \end{environment}
-%
-% \begin{environment}{gathered}
-%    The \env{gathered} environment is for several lines that are
-%    centered independently.
-%    \begin{macrocode}
-\newenvironment{gathered}[1][c]{%
-    \RIfM@\else
-        \nonmatherr@{\begin{gathered}}%
-    \fi
-    \null\,%
-    \if #1t\vtop \else \if#1b\vbox \else \vcenter \fi\fi \bgroup
-        \Let@ \chardef\dspbrk@context\@ne \restore@math@cr
-        \spread@equation
-        \ialign\bgroup
-            \hfil\strut@$\m@th\displaystyle##$\hfil
-            \crcr
-}{%
-  \endaligned
-}
-%    \end{macrocode}
-% \end{environment}
-%
-%
-%    \subsection{The \env{gather} environment}
-%
-% \begin{macro}{\start@gather}
-%    \begin{macrocode}
-\def\start@gather#1{%
-    \RIfM@
-        \nomath@env
-        \DN@{\@namedef{end\@currenvir}{}\@gobble}%
-    \else
-        $$%
-        #1%
-        \ifst@rred \else \global\@eqnswtrue \fi
-        \let\next@\gather@
-    \fi
-    \collect@body\next@
-}
-%    \end{macrocode}
-% \end{macro}
-%
-%    \begin{environment}{gather}
-%    \begin{environment}{gather*}
-%    \begin{macrocode}
-\newenvironment{gather}{%
-  \start@gather\st@rredfalse
-}{%
-  \math@cr \black@\totwidth@ \egroup
-  $$\ignorespacesafterend
-}
-
-\newenvironment{gather*}{%
-  \start@gather\st@rredtrue
-}{%
-  \endgather
-}
-%    \end{macrocode}
-%    \end{environment}
-%    \end{environment}
-%
-%    \begin{macro}{\gather@}
-%    \begin{macrocode}
-\def\gather@#1{%
-    \ingather@true \let\split\insplit@
-    \let\tag\tag@in@align \let\label\label@in@display
-    \chardef\dspbrk@context\z@
-    \intertext@ \displ@y@ \Let@
-    \let\math@cr@@@\math@cr@@@gather
-    \gmeasure@{#1}%
-    \global\shifttag@false
-    \tabskip\z@skip
-    \global\row@\@ne
-    \halign to\displaywidth\bgroup
-        \strut@
-        \setboxz@h{$\m@th\displaystyle{##}$}%
-        \calc@shift@gather
-        \set@gather@field
-        \tabskip\@centering
-       &\setboxz@h{\strut@{##}}%
-        \place@tag@gather
-        \tabskip \iftagsleft@ \gdisplaywidth@ \else \z@skip \span\fi
-        \crcr
-        #1%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\gmeasure@}
-%    \begin{macrocode}
-\def\gmeasure@#1{%
-    \begingroup
-        \measuring@true
-        \totwidth@\z@
-        \global\let\tag@lengths\@empty
-        \savecounters@
-        \setbox\@ne\vbox{%
-            \everycr{\noalign{\global\tag@false
-              \global\let\raise@tag\@empty \global\column@\z@}}%
-            \let\label\@gobble
-            \halign{%
-                \setboxz@h{$\m@th\displaystyle{##}$}%
-                \ifdim\wdz@>\totwidth@
-                    \global\totwidth@\wdz@
-                \fi
-               &\setboxz@h{\strut@{##}}%
-                \savetaglength@
-                \crcr
-                #1%
-                \math@cr@@@
-            }%
-        }%
-        \restorecounters@
-        \if@fleqn
-            \global\advance\totwidth@\@mathmargin
-        \fi
-        \iftagsleft@
-            \ifdim\totwidth@>\displaywidth
-                \global\let\gdisplaywidth@\totwidth@
-            \else
-                \global\let\gdisplaywidth@\displaywidth
-            \fi
-        \fi
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\math@cr@@@gather}
-%    Modified \cs{math@cr@@@gather} so that it always puts in the
-%    final field, which needs to be done under the new method for
-%    determining tag placement.  This is probably more efficient
-%    anyway.
-%
-%    \begin{macrocode}
-\def\math@cr@@@gather{%
-    \ifst@rred\nonumber\fi
-   &\relax
-    \make@display@tag
-    \ifst@rred\else\global\@eqnswtrue\fi
-%    \end{macrocode}
-%    We advance \cs{row@} here, rather than at the beginning of the
-%    preamble, because otherwise the \env{split} environment will
-%    cause \cs{row@} to be advanced twice instead of once.
-%    \begin{macrocode}
-    \global\advance\row@\@ne
-    \cr
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\calc@shift@gather}
-%    \cs{calc@shift@gather} has must make two decisions: (1) whether the
-%    equation tag for the current line should be put on a separate
-%    line and (2) what the distance between the equation and the
-%    equation tag should be.  We implement \tex/'s built-in
-%    tag-placement as well as possible, with one improvement: the
-%    minimum separation between tag and equation is now a
-%    user-settable parameter.
-%
-%    [1995/01/17] Added a check to make sure that the width of the tag
-%    on the current line is $>0$ before testing to see if tagwidth +
-%    linewidth + mintagsep $>$ displaywidth. Since an imbedded align
-%    shows up as line with width \cn{displaywidth}, and even lines
-%    without a tag get processed as if an empty tag were present, the
-%    result was that the empty tag assigned to the line containing the
-%    align was being shifted downwards, creating extra space after the
-%    align.
-%    \begin{macrocode}
-\def\calc@shift@gather{%
-    \dimen@\mintagsep\relax
-    \tagwidth@\tag@width\row@\relax
-%    \end{macrocode}
-%    If we're in \opt{fleqn} mode, there is no flexibility about
-%    placement of the equation, so all we can do is see if there's
-%    room for the tag in the given margin.
-%    \begin{macrocode}
-    \if@fleqn
-        \global\eqnshift@\@mathmargin
-        \ifdim\tagwidth@>\z@
-            \advance\dimen@\tagwidth@
-            \iftagsleft@
-                \ifdim\dimen@>\@mathmargin
-                    \global\shifttag@true
-                \fi
-            \else
-                \advance\dimen@\@mathmargin
-                \advance\dimen@\wdz@
-                \ifdim\dimen@>\displaywidth
-                   \global\shifttag@true
-                \fi
-            \fi
-        \fi
-    \else
-        \global\eqnshift@\displaywidth
-        \global\advance\eqnshift@-\wdz@
-        \ifdim\tagwidth@>\z@
-            \multiply\dimen@\tw@
-            \advance\dimen@\wdz@
-            \advance\dimen@\tagwidth@
-            \ifdim\dimen@>\displaywidth
-                \global\shifttag@true
-            \else
-                \ifdim\eqnshift@<4\tagwidth@
-                    \global\advance\eqnshift@-\tagwidth@
-                \fi
-            \fi
-        \fi
-        \global\divide\eqnshift@\tw@
-        \iftagsleft@
-            \global\eqnshift@-\eqnshift@
-            \global\advance\eqnshift@\displaywidth
-            \global\advance\eqnshift@-\wdz@
-        \fi
-        \ifdim\eqnshift@<\z@
-            \global\eqnshift@\z@
-        \fi
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\place@tag@gather}
-%    \begin{macro}{\set@gather@field}
-%    \begin{macrocode}
-\def\place@tag@gather{%
-    \iftagsleft@
-        \kern-\gdisplaywidth@
-        \ifshifttag@
-            \rlap{\vbox{%
-                \normalbaselines
-                \boxz@
-                \vbox to\lineht@{}%
-                \raise@tag
-            }}%
-            \global\shifttag@false
-        \else
-            \rlap{\boxz@}%
-        \fi
-    \else
-        \ifdim\totwidth@>\displaywidth
-            \dimen@\totwidth@
-            \advance\dimen@-\displaywidth
-            \kern-\dimen@
-        \fi
-        \ifshifttag@
-            \llap{\vtop{%
-                \raise@tag
-                \normalbaselines
-                \setbox\@ne\null
-                \dp\@ne\lineht@
-                \box\@ne
-                \boxz@
-            }}%
-            \global\shifttag@false
-        \else
-            \llap{\boxz@}%
-        \fi
-    \fi
-}
-%
-\def\set@gather@field{%
-    \iftagsleft@
-        \global\lineht@\ht\z@
-    \else
-        \global\lineht@\dp\z@
-    \fi
-    \kern\eqnshift@
-    \boxz@
-    \hfil
-}
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%
-%
-% \subsection{The \env{align} family of environments}
-%
-%    The \env{align}, \env{flalign}, \env{alignat}, \env{xalignat},
-%    and \env{xxalignat} environments are virtually
-%    identical, and thus will share much code.  We'll refer to the
-%    environments generically as ``\env{align}'' and will
-%    distinguish between them explicitly
-%    only when necessary.
-%
-% \begin{macro}{\ifxxat@}
-% \begin{macro}{\ifcheckat@}
-% \begin{macro}{\xatlevel@}
-%    The \cs{xatlevel@} macro will be used, informally speaking, to
-%    distinguish between the \env{alignat} and \env{xalignat}, and
-%    \env{xxalignat} environments.
-%
-%    \begin{macrocode}
-\newif\ifxxat@
-
-\newif\ifcheckat@
-
-\let\xatlevel@\@empty
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%    \end{macro}
-%
-% \begin{macro}{\start@align}
-%    \cs{start@align} will be called by all of the \env{align}-like
-%    environments.  The first argument will be the \cs{xatlevel@},
-%    i.e., 0, 1, or~2; the second argument will be either
-%    \cs{st@rredtrue} or \cs{st@rredfalse}.  The third argument will
-%    be the number of aligned
-%    structures in the environment (either as supplied by the user, or
-%    $-1$ to indicate that checking shouldn't be done).  After
-%    performing the appropriate error detection and initialization,
-%    \cs{start@align} calls \cs{align@}.
-%
-%    Note that the \cs{equation} counter is no longer stepped at the
-%    beginning of these environments.
-%
-%    TODO: Implement \cs{shoveleft} and \cs{shoveright} for
-%    \env{align}.
-%    \begin{macrocode}
-\def\start@align#1#2#3{%
-    \let\xatlevel@#1% always \z@, \@ne, or \tw@
-    \maxfields@#3\relax
-    \ifnum\maxfields@>\m@ne
-        \checkat@true
-        \ifnum\xatlevel@=\tw@
-            \xxat@true
-        \fi
-        \multiply\maxfields@\tw@
-    \else
-        \checkat@false
-    \fi
-    \ifingather@
-        \iffalse{\fi\ifnum0=`}\fi
-        \DN@{\vcenter\bgroup\savealignstate@\align@#2}%
-    \else
-        \ifmmode
-          \if@display
-             \DN@{\align@recover}%
-          \else
-            \nomath@env
-            \DN@{\@namedef{end\@currenvir}{}\@gobble}%
-          \fi
-        \else
-            $$%
-            \let\split\insplit@
-            \DN@{\align@#2}%
-        \fi
-    \fi
-    \collect@body\next@
-}
-%    \end{macrocode}
-%
-%    With version 1.2 of \pkg{amsmath}, it was possible to use
-%    \env{align*} and relatives in certain wrong contexts without
-%    getting an error, e.g.
-% \begin{verbatim}
-% \begin{equation*}
-% \begin{align*}
-% ...
-% \end{align*}
-% \end{equation*}
-% \end{verbatim}
-%
-%    For backward compatibility we therefore give only a warning for
-%    this condition instead of a full error, and try to recover using
-%    the \env{aligned} environment. The alignment of the material may be
-%    adversely affected but it will at least remain readable.
-%    \begin{macrocode}
-\def\align@recover#1#2#3{%
-  \endgroup
-  \@amsmath@err{%
-Erroneous nesting of equation structures;\MessageBreak
-trying to recover with `aligned'%
-  }\@ehc
-  \begin{aligned}\relax#1\end{aligned}%
-}
-%    \end{macrocode}
-% \end{macro}
-%
-%    \begin{environment}{align}
-%    \begin{environment}{align*}
-%    \begin{environment}{flalign}
-%    \begin{environment}{flalign*}
-%    \begin{environment}{alignat}
-%    \begin{environment}{alignat*}
-%    \begin{environment}{xalignat}
-%    \begin{environment}{xalignat*}
-%    \begin{environment}{xxalignat}
-%    The definitions of the various \env{align} environments are quite
-%    straight-forward.
-%
-%    \begin{macrocode}
-\newenvironment{alignat}{%
-  \start@align\z@\st@rredfalse
-}{%
-  \endalign
-}
-\newenvironment{alignat*}{%
-  \start@align\z@\st@rredtrue
-}{%
-  \endalign
-}
-\newenvironment{xalignat}{%
-  \start@align\@ne\st@rredfalse
-}{%
-  \endalign
-}
-\newenvironment{xalignat*}{%
-  \start@align\@ne\st@rredtrue
-}{%
-  \endalign
-}
-\newenvironment{xxalignat}{%
-  \start@align\tw@\st@rredtrue
-}{%
-  \endalign
-}
-\newenvironment{align}{%
-  \start@align\@ne\st@rredfalse\m@ne
-}{%
-  \math@cr \black@\totwidth@
-  \egroup
-  \ifingather@
-    \restorealignstate@
-    \egroup
-    \nonumber
-    \ifnum0=`{\fi\iffalse}\fi
-  \else
-    $$%
-  \fi
-  \ignorespacesafterend
-}
-\newenvironment{align*}{%
-  \start@align\@ne\st@rredtrue\m@ne
-}{%
-  \endalign
-}
-\newenvironment{flalign}{%
-  \start@align\tw@\st@rredfalse\m@ne
-}{%
-  \endalign
-}
-\newenvironment{flalign*}{%
-  \start@align\tw@\st@rredtrue\m@ne
-}{%
-  \endalign
-}
-%    \end{macrocode}
-%    \end{environment}
-%    \end{environment}
-%    \end{environment}
-%    \end{environment}
-%    \end{environment}
-%    \end{environment}
-%    \end{environment}
-%    \end{environment}
-%    \end{environment}
-%
-%
-%  \begin{macro}{\align@}
-%    TODO: Some of these sets of initializations show up in multiple
-%    places.  It might be worth making an abbreviation for them.
-%
-%    \begin{macrocode}
-\def\align@#1#2{%
-    \inalign@true \intertext@ \Let@ \chardef\dspbrk@context\z@
-    \ifingather@\else\displ@y@\fi
-    \let\math@cr@@@\math@cr@@@align
-    \ifxxat@\else \let\tag\tag@in@align \fi
-    \let\label\label@in@display
-    #1% set st@r
-    \ifst@rred\else \global\@eqnswtrue \fi
-    \measure@{#2}%
-    \global\row@\z@
-    \tabskip\eqnshift@
-    \halign\bgroup
-        \span\align@preamble\crcr
-        #2%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\math@cr@@@align}
-%    \begin{macrocode}
-\def\math@cr@@@align{%
-  \ifst@rred\nonumber\fi
-  \if@eqnsw \global\tag@true \fi
-  \global\advance\row@\@ne
-  \add@amps\maxfields@
-  \omit
-  \kern-\alignsep@
-  \iftag@
-    \setboxz@h{\@lign\strut@{\make@display@tag}}%
-    \place@tag
-  \fi
-  \ifst@rred\else\global\@eqnswtrue\fi
-  \global\lineht@\z@
-  \cr
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\math@cr@@@align@measure}
-%    \begin{macrocode}
-\def\math@cr@@@align@measure{%
-   &\omit
-    \global\advance\row@\@ne
-    \ifst@rred\nonumber\fi
-    \if@eqnsw \global\tag@true \fi
-    \ifnum\column@>\maxfields@
-        \ifcheckat@
-            \begingroup
-              \measuring@false
-              \@amsmath@err{Extra & on this line}%
-                {\the\andhelp@}% "An extra & here is disastrous"
-            \endgroup
-        \else
-            \global\maxfields@\column@
-        \fi
-    \fi
-    \setboxz@h{\@lign\strut@{%
-        \if@eqnsw
-            \stepcounter{equation}%
-            \tagform@\theequation
-        \else
-            \iftag@\df@tag\fi
-        \fi
-    }}%
-    \savetaglength@
-    \ifst@rred\else\global\@eqnswtrue\fi
-    \cr
-}
-%    \end{macrocode}
-% \end{macro}
-%
-%    \begin{macro}{\field@lengths}
-%    \begin{macro}{\savefieldlength@}
-%    \begin{macro}{\fieldlengths@}
-%    \begin{macrocode}
-\let\field@lengths\@empty
-
-\def\savefieldlength@{%
-    \begingroup
-        \let\or\relax
-        \xdef\field@lengths{%
-            \field@lengths
-            \ifnum\column@=0
-                \or
-            \else
-                ,%
-            \fi
-            \the\wdz@
-        }%
-    \endgroup
-}
-
-\def\fieldlengths@#1{%
-    \ifcase\@xp#1\field@lengths\fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%    \end{macro}
-%
-%  \begin{macro}{\maxcolumn@widths}
-%    \cs{maxcolumn@widths} will be used to hold the widths of the
-%    fields of the \env{alignat} environment.  The widths will be
-%    separated by the token \cn{or}, making it easy to extract a given
-%    width using \cn{ifcase}.
-%    \begin{macrocode}
-\let\maxcolumn@widths\@empty
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{\maxcol@width}
-% \cs{maxcol@width} $n$ = maximum width of $n$th column of the current
-%    \env{alignat} (i.e., the $n$th field of \cs{maxcolumn@widths}.)
-%    It expands to a \<dimen>, so it can be used as the right-hand
-%    side of a \<variable assignment> or \<arithmetic> statement.
-%    It's argument can be any \<number>, \<integer variable> or macro
-%    that expands to one of these.  [Check to make sure this is true.]
-%
-%    This is subtler than it looks.
-%    \begin{macrocode}
-\def\maxcol@width#1{%
-    \ifcase\@xp#1\maxcolumn@widths\fi\relax
-}
-%    \end{macrocode}
-%  \end{macro}
-%
-%    Now comes the real fun.  A typical \env{align} environments looks
-%    something like this, where the vertical bars mark the edges of
-%    the fields of the underlying \cs{halign}:
-%    \[
-%    \makeatletter\tabskip\@centering\offinterlineskip
-%    \halign to\displaywidth{%^^A
-%       &$\strut$\vrule\hfil$\m@th\displaystyle{\@lign#}$\vrule
-%      \tabskip1pt&\vrule$\m@th\displaystyle{\@lign#}$\hfil\vrule
-%      \tabskip\@centering\cr
-%    \omit\small\hfil 1\hfil &\omit\small\hfil 2 &\omit\small\hfil
-%    3\hfil &\omit\small\hfil 4\hfil & \omit\small\hfil 5\hfil
-%    &\omit\small\hfil 6\hfil\cr
-%    \noalign{\vskip8pt\relax}
-%    V_i + q_i v_j & =v_i , &  X_i & = x_i - q_i x_j,
-%     &  U_i & = u_i,\qquad
-%      \hbox{for $i\ne j$;} %&\omit\hfill \llap{(3)}
-%    \cr
-%    V_j & = v_j, &  X_j & = x_j,
-%      &  U_j & = u_j + \sum_{i\ne j} q_i u_i. %&\omit\hfill \llap{(4)}
-%    \cr}
-%    \]
-%    Note that each align structure consists of two fields, with no
-%    space between them (a small space has been added here to
-%    highlight the boundaries).  Furthermore, the text inside the
-%    odd-numbered fields is flushright, while the text inside the
-%    even-numbered fields is flushleft.  The equation tags (shown on
-%    the right here) can be on either the right or the left.  If there
-%    is not room (in a sense to be defined shortly) for the tag on the
-%    same line as the equation, the tag will be shifted to a separate
-%    line.
-%
-%    Each environment also has a certain number of ``flexible
-%    spaces,'' meaning spaces whose width we are allowed to adjust to
-%    take up the amount of ``free space'' in the line, meaning the
-%    space not taken up by the equation tag and the fields of the
-%    underlying \cs{halign}.
-%
-%    The flexible spaces come in two flavors: interalign spaces and
-%    margin spaces.  If there are $n$ align structures ($n=3$ in the
-%    illustration above), there are $n-1$ interalign spaces, unless we
-%    are in an \env{alignat} environment, in which case there are no
-%    flexible interalign spaces.
-%
-%    The number of margin spaces is a little more complicated:
-%    Normally, there are two, but if we're in \opt{fleqn} mode, there
-%    is only one.  Furthermore, if we're in an \env{xxalignat} or
-%    \env{flalign} environment (corresponding to $\cs{xatlevel@} = 2$,
-%    then there are no flexible margin spaces.
-%
-%    Calculating the interalign and margin spaces is done in two
-%    stages.
-%
-%    First, the total amount of free space is divided uniformly among
-%    all the flexible spaces, without regard for the lengths of the tags
-%    on the various lines. For the non-\opt{fleqn} case, this
-%    corresponds to centering the align structures between the margins.
-%    Note that in \opt{fleqn} mode, the right margin is still allowed to
-%    be larger than \cs{@mathmargin}. This introduces an element of
-%    asymmetry into the appearance of the environment, but it has the
-%    advantage of leaving more space for equation tags in the right
-%    margin. If the right margin were constrained to be equal to the
-%    left margin in this case, tags would need to be shifted to a
-%    separate line more often than would be desirable.
-%
-%    Ordinarily, all flexible spaces will be given the same width.
-%    However, this is not invariably true, since the interalign spaces
-%    are constrained to be at least \cs{minalignsep} wide, while---in
-%    the absence of equation tags, at least---the margin spaces are
-%    allowed to shrink to zero.  As we shall see in a minute, if there
-%    are tags in the environment, then the margins are also bounded
-%    below by \cs{mintagsep}.
-%
-%    Next, we examine each line of the environment that has a tag to
-%    see if there is a gap of at least \cs{mintagsep} between the
-%    equation and its tag.  If there isn't, we attempt to center the
-%    equation between the tag and the opposite margin, leaving a gap
-%    of at least \cs{mintagsep} on either side, in order to preserve
-%    some symmetry, i.e., we want the equation to \emph{look} like
-%    it's centered between the margin and the tag, so we don't want
-%    the margin space to be less than the gap between the tag and the
-%    equation.  (Arguably, it would be better to allow the margin
-%    space to shrink to zero in this case in order to avoid shifting
-%    the tag to a separate line at any cost, but that would require
-%    all of our calculations to be a little more complicated and hence
-%    a little slower.)  Finally, if no values of the interalign spaces
-%    and the margins (with the constraints outlined above) will
-%    produce an acceptable distance between the equation and its tag,
-%    then the tag will be shifted to a separate line.
-%
-%  \begin{macro}{\measure@}
-%    \cs{measure@} collects the various bits of information that we'll
-%    need to perform the calculations outlined above, namely, the
-%    number of align structures in the environment, the natural
-%    lengths of the fields on each row, the maximum widths of each
-%    column, and the widths of the equation tags on each line.  It
-%    also calculates the number of flexible interalign and margin
-%    spaces and computes the initial values of the parameters
-%    \cs{eqnshift@} and \cs{alignsep@}, which correspond to the widths
-%    of the margins and the interalign spaces, respectively.
-%    \begin{macrocode}
-\def\measure@#1{%
-    \begingroup
-        \measuring@true
-        \global\eqnshift@\z@
-        \global\alignsep@\z@
-        \global\let\tag@lengths\@empty
-        \global\let\field@lengths\@empty
-        \savecounters@
-        \global\setbox0\vbox{%
-            \let\math@cr@@@\math@cr@@@align@measure
-            \everycr{\noalign{\global\tag@false
-              \global\let\raise@tag\@empty \global\column@\z@}}%
-            \let\label\@gobble
-            \global\row@\z@
-            \tabskip\z@
-            \halign{\span\align@preamble\crcr
-                #1%
-                \math@cr@@@
-                \global\column@\z@
-                \add@amps\maxfields@\cr
-            }%
-        }%
-        \restorecounters@
-%    \end{macrocode}
-%    It's convenient to have \cs{maxfields@} rounded up to the nearest
-%    even number, so that \cs{maxfields@} is precisely twice the
-%    number of align structures.
-%    \begin{macrocode}
-        \ifodd\maxfields@
-            \global\advance\maxfields@\@ne
-        \fi
-%    \end{macrocode}
-%    It doesn't make sense to have a single align structure in either
-%    \env{flalign} or \env{xxalignat}.  So, we check for that case now
-%    and, if necessary, switch to an \env{align} or \env{alignat}.
-%    Arguably, we should issue a warning message, but why bother?
-%    \begin{macrocode}
-        \ifnum\xatlevel@=\tw@
-            \ifnum\maxfields@<\thr@@
-                \let\xatlevel@\z@
-            \fi
-        \fi
-%    \end{macrocode}
-%    |\box0| now contains the lines of the \cs{halign}.  After the
-%    following maneuver, |\box1| will contain the last line of the
-%    \cs{halign}, which is what we're interested in.  (Incidentally,
-%    the penalty we're removing is the \cs{@eqpen} inserted by
-%    \cs{math@cr}.  Normally, this is \cs{interdisplaylinepenalty},
-%    unless the user has overridden that with a \cs{displaybreak}
-%    command.)
-%    \begin{macrocode}
-        \setbox\z@\vbox{%
-          \unvbox\z@ \unpenalty \global\setbox\@ne\lastbox
-        }%
-%    \end{macrocode}
-%    |\box1| begins with \cs{tabskip} glue and contains alternating
-%    \cs{hbox}es (the fields whose widths we're trying to get) and
-%    \cs{tabskip} glue [need better diagram]:
-%    \begin{verbatim}
-%    \hbox{\tabskip\hbox\tabskip...\hbox\tabskip}\end{verbatim}
-%    In fact, all the \cs{tabskip} glue will be 0pt, because all the
-%    \cs{tabskip}s in an \env{alignat} environment have a natural
-%    width of 0pt, and the \cs{halign} has been set in its natural
-%    width.
-%
-%    One nice result of this is that we can read \cs{totwidth@} off
-%    immediately, since it is just the width of |\box1|, plus
-%    \cs{@mathmargin} if we're in \opt{fleqn} mode.  (Actually, we
-%    also have to take \cs{minalignsep} into account, but we'll do
-%    that later):
-%    \begin{macrocode}
-        \global\totwidth@\wd\@ne
-        \if@fleqn \global\advance\totwidth@\@mathmargin \fi
-%    \end{macrocode}
-%    Now we initialize \cs{align@lengths} and start peeling the boxes
-%    off, one by one, and adding their widths to \cs{align@lengths}.
-%    We stop when we run out of boxes, i.e., when \cs{lastbox} returns
-%    a void box.  We're going to build a list using \cs{or} as a
-%    delimiter, so we want to disable it temporarily.
-%    \begin{macrocode}
-        \global\let\maxcolumn@widths\@empty
-        \begingroup
-          \let\or\relax
-          \loop
-            \global\setbox\@ne\hbox{%
-              \unhbox\@ne \unskip \global\setbox\thr@@\lastbox
-            }%
-          \ifhbox\thr@@
-           \xdef\maxcolumn@widths{ \or \the\wd\thr@@ \maxcolumn@widths}%
-          \repeat
-        \endgroup
-%    \end{macrocode}
-%    Now we calculate the number of flexible spaces and the initial
-%    values of \cs{eqnshift@} and \cs{alignsep@}.
-%    We start by calculating $\cs{displaywidth}-\cs{totwidth@}$,
-%    which gives us the total amount of ``free space'' in a row.
-%    \begin{macrocode}
-        \dimen@\displaywidth
-        \advance\dimen@-\totwidth@
-%    \end{macrocode}
-%    Next we calculate the number of columns of flexible spaces in the
-%    display, which depends on whether we're in \opt{fleqn} mode and
-%    in which particular environment we are in.
-%
-%    We use \cs{@tempcnta} to store the total number of flexible spaces
-%    in the align and \cs{@tempcntb} for the number of interalign
-%    spaces.
-%    \begin{macrocode}
-        \ifcase\xatlevel@
-%    \end{macrocode}
-%    In \env{alignat}, the interalign spaces are under user control,
-%    not ours.  So, we set \cs{alignsep@} and \cs{minalignsep} both
-%    equal to 0pt.  Later, when calculating a new value for
-%    \cs{alignsep@}, we will only save the new value if it is less
-%    than the current value of \cs{alignsep@} (i.e., \cs{alignsep@}
-%    will never increase).  Since the values we calculate will never
-%    be negative, this will ensure that \cs{alignsep@} remains zero in
-%    \env{alignat}.
-%    \begin{macrocode}
-            \global\alignsep@\z@
-            \let\minalignsep\z@
-            \@tempcntb\z@
-%    \end{macrocode}
-%    In \opt{fleqn} mode, the left margin---and hence the right margin
-%    in this case---is fixed.  Otherwise, we divide the free space
-%    equally between the two margins.
-%    \begin{macrocode}
-            \if@fleqn
-                \@tempcnta\@ne
-                \global\eqnshift@\@mathmargin
-            \else
-                \@tempcnta\tw@
-                \global\eqnshift@\dimen@
-                \global\divide\eqnshift@\@tempcnta
-            \fi
-        \or
-%    \end{macrocode}
-%    In an \env{align} or \env{xalignat} environment with $n$ aligned
-%    structures, there are $n-1$ interalign spaces and either 1 or~2
-%    flexible margins, depending on whether we're in \opt{fleqn} mode
-%    or not.
-%    \begin{macrocode}
-            \@tempcntb\maxfields@
-            \divide\@tempcntb\tw@
-            \@tempcnta\@tempcntb
-            \advance\@tempcntb\m@ne
-%    \end{macrocode}
-%    If we are in \opt{fleqn} mode, we fix the left margin and divide
-%    the free space equally among the interalign spaces and the right
-%    margin.
-%    \begin{macrocode}
-            \if@fleqn
-                \global\eqnshift@\@mathmargin
-                \global\alignsep@\dimen@
-                \global\divide\alignsep@\@tempcnta
-            \else
-%    \end{macrocode}
-%    Otherwise, we divide the free space equally among the interalign
-%    spaces and both margins.
-%    \begin{macrocode}
-                \global\advance\@tempcnta\@ne
-                \global\eqnshift@\dimen@
-                \global\divide\eqnshift@\@tempcnta
-                \global\alignsep@\eqnshift@
-            \fi
-        \or
-%    \end{macrocode}
-%    Finally, if we're in an \env{flalign} or \env{xxalignat}
-%    environment, there are no flexible margins and $n-1$ flexible
-%    interalign spaces.
-%    \begin{macrocode}
-            \@tempcntb\maxfields@
-            \divide\@tempcntb\tw@
-            \global\advance\@tempcntb\m@ne
-            \global\@tempcnta\@tempcntb
-            \global\eqnshift@\z@
-            \global\alignsep@\dimen@
-%    \end{macrocode}
-%    If we're in \opt{fleqn} mode, we need to add back the
-%    \cs{@mathmargin} that was removed when \cs{dimen@} was originally
-%    calculated above.
-%    \begin{macrocode}
-            \if@fleqn
-                \global\advance\alignsep@\@mathmargin\relax
-            \fi
-            \global\divide\alignsep@\@tempcntb
-        \fi
-%    \end{macrocode}
-%    Now we make sure \cs{alignsep@} isn't too small.
-%    \begin{macrocode}
-        \ifdim\alignsep@<\minalignsep\relax
-            \global\alignsep@\minalignsep\relax
-            \ifdim\eqnshift@>\z@
-                \if@fleqn\else
-                    \global\eqnshift@\displaywidth
-                    \global\advance\eqnshift@-\totwidth@
-                    \global\advance\eqnshift@-\@tempcntb\alignsep@
-                    \global\divide\eqnshift@\tw@
-                \fi
-            \fi
-        \fi
-        \ifdim\eqnshift@<\z@
-            \global\eqnshift@\z@
-        \fi
-        \calc@shift@align
-%    \end{macrocode}
-%    Next, we calculate the value of \cs{tagshift@}.  This is the glue
-%    that will be inserted in front of the equation tag to make sure
-%    it lines up flush against the appropriate margin.
-%    \begin{macrocode}
-        \global\tagshift@\totwidth@
-        \global\advance\tagshift@\@tempcntb\alignsep@
-        \if@fleqn
-            \ifnum\xatlevel@=\tw@
-                \global\advance\tagshift@-\@mathmargin\relax
-            \fi
-        \else
-            \global\advance\tagshift@\eqnshift@
-        \fi
-        \iftagsleft@ \else
-            \global\advance\tagshift@-\displaywidth
-        \fi
-%    \end{macrocode}
-%    Finally, we increase \cs{totwidth@} by an appropriate multiple of
-%    \cs{minalignsep}.  If the result is greater than
-%    \cs{displaywidth}, it means that at least one line in the
-%    \env{align} is overfull and we will issue an appropriate warning
-%    message (via \cs{bl@ck}) at the end of the environment.
-%    \begin{macrocode}
-        \dimen@\minalignsep\relax
-        \global\advance\totwidth@\@tempcntb\dimen@
-        \ifdim\totwidth@>\displaywidth
-            \global\let\displaywidth@\totwidth@
-        \else
-            \global\let\displaywidth@\displaywidth
-        \fi
-    \endgroup
-}
-%    \end{macrocode}
-%  \end{macro}
-%
-%    The code for calculating the appropriate placement of equation
-%    tags in the \env{align} environments is quite complicated and
-%    varies wildly depending on the settings of the |tagsleft@| and
-%    |@fleqn| switches.  To minimize memory and hash space usage, we
-%    only define the variant appropriate for the current setting of
-%    those switches.
-%
-%    It would be worthwhile to examine this code more closely someday
-%    and see if it could be optimized any.
-%
-%    \paragraph{Tag placement when \cs{tagsleft@true},
-%    \cs{@fleqntrue}.}
-%
-%    We begin with the version of \cs{calc@shift@align} appropriate
-%    for flush-left equations with tags on the left.
-%
-%    \begin{macro}{\calc@shift@align}
-%    This is the simplest case.  Since the left margin is fixed, in
-%    general the only thing to do is check whether there is room for
-%    the tag in the left margin.  The only exception is that if
-%    $\cs{eqnshift@} = 0\,\mathrm{pt}$---meaning that we're in a
-%    \env{flalign} environment and this is the first line with a tag
-%    that we've encountered---then we set $\cs{eqnshift@} =
-%    \cs{@mathmargin}$ and recalculate \cs{alignsep@}.  This is done
-%    by \cs{x@calc@shift@lf}.
-%    \begin{macrocode}
-\iftagsleft@\if@fleqn
-    \def\calc@shift@align{%
-        \global\let\tag@shifts\@empty
-        \begingroup
-%    \end{macrocode}
-%    \cs{@tempdima} is initialized to $\cs{@mathmargin} -
-%    \cs{mintagsep}$, which yields the maximum size of a tag that will
-%    not be shifted to another line.
-%    \begin{macrocode}
-            \@tempdima\@mathmargin\relax
-            \advance\@tempdima-\mintagsep\relax
-%    \end{macrocode}
-%    Now we examine each row in turn.  If the width of the tag on the
-%    line is non-positive---meaning either that there is no tag or
-%    else that the user has forced it to have zero width---we mark the
-%    tag to remain unshifted.  Otherwise, we call \cs{x@calc@shift@lf}
-%    to determine whether any adjustments need to be made to
-%    \cs{eqnshift@} and \cs{alignsep@}.  Note the difference in
-%    treatment of zero-width tags between this code and \tex/'s
-%    built-in algorithm: here, a width of zero prohibits the tag from
-%    being shifted, while in \tex/'s built-in algorithm, a width of
-%    zero forces the tag to be shifted.
-%    \begin{macrocode}
-            \loop
-                \ifnum\row@>0
-                    \ifdim\tag@width\row@>\z@
-                        \x@calc@shift@lf
-                    \else
-                        \saveshift@0%
-                    \fi
-                    \advance\row@\m@ne
-            \repeat
-        \endgroup
-    }
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\x@calc@shift@lf}
-%    As mentioned above, \cs{x@calc@shift@lf} first checks to see if
-%    the current left margin is set to 0 and, if so, resets it to
-%    \cs{@mathmargin} and recalculates \cs{alignsep@}.  Next, it
-%    checks whether the length of the current tag exceeds the
-%    previously calculated limit and, if so, marks the tag to be
-%    shifted to a separate line.
-%    \begin{macrocode}
-    \def\x@calc@shift@lf{%
-        \ifdim\eqnshift@=\z@
-            \global\eqnshift@\@mathmargin\relax
-            \alignsep@\displaywidth
-            \advance\alignsep@-\totwidth@
-            \global\divide\alignsep@\@tempcntb
-            \ifdim\alignsep@<\minalignsep\relax
-                \global\alignsep@\minalignsep\relax
-            \fi
-        \fi
-        \ifdim\tag@width\row@>\@tempdima
-            \saveshift@1%
-        \else
-            \saveshift@0%
-        \fi
-    }
-\fi\fi
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \paragraph{Tag placement when \cs{tagsleft@false},
-%    \cs{@fleqntrue}.}
-%
-%    Next we consider the case when equations are flush-left, but tags
-%    are on the right.  This case is somewhat more complicated than
-%    the previous one, since we can adjust the right margin by varying
-%    the inter-align separatin. Thus, when a tag is found to be too
-%    close to its equation, we first attempt to decrease
-%    \cs{alignsep@} enough to move the equation off to an acceptable
-%    distance.  Only if that would require a value of \cs{alignsep@}
-%    less than \cs{minalignsep} do we move the tag to a separate line.
-%
-%    \begin{macro}{\calc@shift@align}
-%    This version of \cs{calc@shift@align} differs from the previous
-%    version only in calling \cs{x@calc@shift@rf} rather than
-%    \cs{x@calc@shift@lf}.
-%    \begin{macrocode}
-\iftagsleft@\else\if@fleqn
-    \def\calc@shift@align{%
-        \global\let\tag@shifts\@empty
-        \begingroup
-            \loop
-                \ifnum\row@>0
-                    \ifdim\tag@width\row@>\z@
-                        \x@calc@shift@rf
-                    \else
-                        \saveshift@0%
-                    \fi
-                    \advance\row@\m@ne
-            \repeat
-        \endgroup
-    }
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\x@calc@shift@rf}
-%    To start, we need to know two quantities: the number of align
-%    structures in the current row and the ``effective length'' of the
-%    row, defined as the distance from the left margin to the
-%    right edge of the text assuming that \cs{eqnshift@} and
-%    \cs{alignsep@} are both~0.  To get the number of align
-%    structures, we first count the number of columns by counting the
-%    number of entries in the \cs{fieldlengths@} for the current row.
-%    The effective length is calcuated by \cs{x@rcalc@width} and put
-%    in the temporary register \cs{@tempdimc}, using \cs{@tempdimb} as
-%    an auxiliary variable.
-%    \begin{macrocode}
-    \def\x@calc@shift@rf{%
-        \column@\z@
-        \@tempdimb\z@
-        \@tempdimc\z@
-        \edef\@tempb{\fieldlengths@\row@}%
-        \@for\@tempa:=\@tempb\do{%
-            \advance\column@\@ne
-            \x@rcalc@width
-        }%
-        \begingroup
-%    \end{macrocode}
-%    If there are $n$ columns in the current row, then there are
-%    $\lfloor (n+1)/2 \rfloor$ align structures and $\lfloor (n-1)/2
-%    \rfloor$ interalign spaces.
-%    \begin{macrocode}
-            \advance\column@\m@ne
-            \divide\column@\tw@
-%    \end{macrocode}
-%    If this is smaller than the maximum number of interalign spaces
-%    in the environment, then we need to reduce \cs{@tempcnta} (the
-%    total number of flexible spaces in the current line) by
-%    $\cs{@tempcntb} - \cs{column@}$ and reset \cs{@tempcntb} to
-%    \cs{column@}.
-%    \begin{macrocode}
-            \ifnum\@tempcntb>\column@
-                \advance\@tempcnta-\@tempcntb
-                \advance\@tempcnta\column@
-                \@tempcntb\column@
-            \fi
-%    \end{macrocode}
-%    Next, we add the width of the tag and the (fixed) left margin to
-%    the effective length calculated above.  This can be used to
-%    calculate how much ``free space'' there is in the current line
-%    and thus how much leeway we have to increase the amount of space
-%    between the tag and the equation.
-%    \begin{macrocode}
-            \tagwidth@\tag@width\row@\relax
-            \@tempdima\eqnshift@
-            \advance\@tempdima\@tempdimc\relax
-            \advance\@tempdima\tagwidth@
-%    \end{macrocode}
-%    The first thing to check is whether the tag should be shifted to
-%    a separate line.  To do this, we add the minimum interalign
-%    separation and the \cs{mintagsep} to the value of \cs{@tempdima}
-%    just calculated.  This yields the minimum acceptable length of
-%    the current line.  If that is greater than \cs{displaywidth}, we
-%    mark the tag to be calculated.  Otherwise, we mark the tag to be
-%    kept on the same line and then check to see if the \cs{alignsep@}
-%    needs to be reduced to make room for the tag.
-%    \begin{macrocode}
-            \dimen@\minalignsep\relax
-            \multiply\dimen@\@tempcntb
-            \advance\dimen@\mintagsep\relax
-            \advance\dimen@\@tempdima
-            \ifdim\dimen@>\displaywidth
-                \saveshift@1%
-            \else
-                \saveshift@0%
-%    \end{macrocode}
-%    Now we perform essentially the same calculation, but using the
-%    current value of \cs{alignsep@} instead of \cs{minalignsep}.
-%    This gives the current length of the line.  If this is greater
-%    than \cs{displaywidth}, we recalculate \cs{alignsep@} to make
-%    room for the tag.
-%    \begin{macrocode}
-                \dimen@\alignsep@\relax
-                \multiply\dimen@\@tempcntb
-                \advance\dimen@\@tempdima
-                \advance\dimen@\tagwidth@
-                \ifdim\dimen@>\displaywidth
-                    \dimen@\displaywidth
-                    \advance\dimen@-\@tempdima
-                    \ifnum\xatlevel@=\tw@
-                        \advance\dimen@-\mintagsep\relax
-                    \fi
-                    \divide\dimen@\@tempcnta
-                    \ifdim\dimen@<\minalignsep\relax
-                        \global\alignsep@\minalignsep\relax
-                    \else
-                        \global\alignsep@\dimen@
-                    \fi
-                \fi
-            \fi
-        \endgroup
-    }
-\fi\fi
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \paragraph{Tag placement when \cs{tagsleft@false},
-%    \cs{@fleqnfalse}.}
-%
-%    This is similar to the previous case, except for the added
-%    complication that both \cs{alignsep@} and \cs{eqnshift@} can
-%    vary, which makes the computations correspondingly more
-%    complicated.
-%
-%    \begin{macro}{\calc@shift@align}
-%    \begin{macrocode}
-\iftagsleft@\else\if@fleqn\else
-    \def\calc@shift@align{%
-        \global\let\tag@shifts\@empty
-        \begingroup
-            \loop
-                \ifnum\row@>0
-                    \ifdim\tag@width\row@>\z@
-                        \x@calc@shift@rc
-                    \else
-                        \saveshift@0%
-                    \fi
-                    \advance\row@\m@ne
-            \repeat
-        \endgroup
-    }
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\x@calc@shift@rc}
-%    \begin{macrocode}
-    \def\x@calc@shift@rc{%
-        \column@\z@
-        \@tempdimb\z@
-        \@tempdimc\z@
-        \edef\@tempb{\fieldlengths@\row@}%
-        \@for\@tempa:=\@tempb\do{%
-            \advance\column@\@ne
-            \x@rcalc@width
-        }%
-        \begingroup
-            \advance\column@\m@ne
-            \divide\column@\tw@
-            \ifnum\@tempcntb>\column@
-                \advance\@tempcnta-\@tempcntb
-                \advance\@tempcnta\column@
-                \@tempcntb\column@
-            \fi
-            \tagwidth@\tag@width\row@\relax
-            \@tempdima\@tempdimc
-            \advance\@tempdima\tagwidth@
-            \dimen@\minalignsep\relax
-            \multiply\dimen@\@tempcntb
-            \advance\dimen@\mintagsep\relax
-            \ifnum\xatlevel@=\tw@ \else
-                \advance\dimen@\mintagsep\relax
-            \fi
-            \advance\dimen@\@tempdima
-            \ifdim\dimen@>\displaywidth
-                \saveshift@1%
-            \else
-                \saveshift@0%
-                \dimen@\eqnshift@
-                \advance\dimen@\@tempdima
-                \advance\dimen@\@tempcntb\alignsep@
-                \advance\dimen@\tagwidth@
-                \ifdim\dimen@>\displaywidth
-                    \dimen@\displaywidth
-                    \advance\dimen@-\@tempdima
-                    \ifnum\xatlevel@=\tw@
-                        \advance\dimen@-\mintagsep\relax
-                    \fi
-                    \divide\dimen@\@tempcnta
-                    \ifdim\dimen@<\minalignsep\relax
-                        \global\alignsep@\minalignsep\relax
-                        \eqnshift@\displaywidth
-                        \advance\eqnshift@-\@tempdima
-                        \advance\eqnshift@-\@tempcntb\alignsep@
-                        \global\divide\eqnshift@\tw@
-                    \else
-                        \ifdim\dimen@<\eqnshift@
-                            \ifdim\dimen@<\z@
-                                \global\eqnshift@\z@
-                            \else
-                                \global\eqnshift@\dimen@
-                            \fi
-                        \fi
-                        \ifdim\dimen@<\alignsep@
-                            \global\alignsep@\dimen@
-                        \fi
-                    \fi
-                \fi
-            \fi
-        \endgroup
-    }
-\fi\fi
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\x@rcalc@width}
-%    \begin{macrocode}
-\iftagsleft@\else
-    \def\x@rcalc@width{%
-        \ifdim\@tempa > \z@
-            \advance\@tempdimc\@tempdimb
-            \ifodd\column@
-                \advance\@tempdimc\maxcol@width\column@
-                \@tempdimb\z@
-            \else
-                \advance\@tempdimc\@tempa\relax
-                \@tempdimb\maxcol@width\column@
-                \advance\@tempdimb-\@tempa\relax
-            \fi
-        \else
-            \advance\@tempdimb\maxcol@width\column@\relax
-        \fi
-    }
-\fi
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \paragraph{Tag placement when \cs{tagsleft@true},
-%    \cs{@fleqnfalse}.}
-%
-%    \begin{macro}{\calc@shift@align}
-%    \begin{macrocode}
-\iftagsleft@\if@fleqn\else
-    \def\calc@shift@align{%
-        \global\let\tag@shifts\@empty
-        \begingroup
-            \loop
-                \ifnum\row@>\z@
-                    \ifdim\tag@width\row@>\z@
-                        \x@calc@shift@lc
-                    \else
-                        \saveshift@0%
-                    \fi
-                    \advance\row@\m@ne
-            \repeat
-        \endgroup
-    }
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\x@calc@shift@lc}
-%    \begin{macrocode}
-    \def\x@calc@shift@lc{%
-        \column@\z@
-%    \end{macrocode}
-%    \cs{@tempdima} will (eventually) be set to the effective width of
-%    the current row, defined as the distance from the leftmost point
-%    of the current line to the end of the last field of the
-%    \cs{halign}, ignoring any intervening \cs{tabskip}s, plus the
-%    width of the current tag.  That is, it will be the width of the
-%    first non-empty field plus the sum of the maximum widths of all
-%    following fields, plus the tag width.
-%
-%    \cs{@tempdimb} will be the ``indentation'' of leftmost end of
-%    text, ignoring the \cs{tabskip} glue, i.e., it will be the sum of
-%    the maximum widths of any fields to the left of the first
-%    non-empty field, plus whatever empty space there is at the
-%    beginning of the first non-empty field.
-%    \begin{macrocode}
-        \@tempdima\z@ % ``width of equation''
-        \@tempdimb\z@ % ``indent of equation''
-        \edef\@tempb{\fieldlengths@\row@}%
-        \@for\@tempa:=\@tempb\do{%
-            \advance\column@\@ne
-            \x@lcalc@width
-        }%
-        \begingroup
-            \tagwidth@\tag@width\row@\relax
-%    \end{macrocode}
-%    \cs{@tempdima} is now easy to calculate, since it is just
-%    $\cs{totwidth@} - \cs{@tempdimb} + \cs{tagwidth@}$.
-%    \begin{macrocode}
-            \@tempdima\totwidth@
-            \advance\@tempdima-\@tempdimb
-            \advance\@tempdima\tagwidth@
-%    \end{macrocode}
-%    Next, we check to see whether there is room for both the equation
-%    and the tag on the same line, by calculating the minimum
-%    acceptable length of the current row and comparing that to
-%    \cs{displaywidth}.  Note that here we use \cs{@tempcntb}, i.e.,
-%    the number of interalign spaces after the first non-empty align
-%    structure.
-%    \begin{macrocode}
-            \dimen@\minalignsep\relax
-            \multiply\dimen@\@tempcntb
-            \advance\dimen@\mintagsep\relax
-            \ifnum\xatlevel@=\tw@ \else
-                \advance\dimen@\mintagsep\relax
-            \fi
-            \advance\dimen@\@tempdima
-%    \end{macrocode}
-%    If the minimum acceptable width of the current line is greater
-%    than \cs{displaywidth}, we mark the current tag to be shifted to
-%    a separate line.
-%    \begin{macrocode}
-            \ifdim\dimen@>\displaywidth
-                \saveshift@1%
-            \else
-%    \end{macrocode}
-%    Otherwise, the tag can stay on the same line as the equation, but
-%    we need to check whether it is too close to the equation.  So, we
-%    calculate the distance between the left margin and the left side
-%    of the equation, using the current values of \cs{eqnshift@} and
-%    \cs{alignsep@}.  Note that we use \cs{count@} here, not
-%    \cs{@tempcntb}, as above.
-%    \begin{macrocode}
-                \saveshift@0%
-                \dimen@\alignsep@
-                \multiply\dimen@\count@
-                \advance\dimen@\eqnshift@
-                \advance\dimen@\@tempdimb
-%    \end{macrocode}
-%    If the left margin is less than twice the tag width, we calculate
-%    new values of \cs{eqnshift@} and \cs{alignsep@} to move the
-%    equation further away from the tag.  In particular, we center the
-%    current line between its tag and the right margin.  Note that
-%    although we later will need to transform \cs{dimen@} into a value
-%    suitable for use as \cs{eqnshift@}, for the time being it is more
-%    useful to think of it as the space separating the tag from the
-%    equation.
-%    \begin{macrocode}
-                \ifdim\dimen@<2\tagwidth@
-                    \dimen@\displaywidth
-                    \advance\dimen@-\@tempdima
-                    \ifnum\xatlevel@=\tw@
-                        \advance\dimen@-\mintagsep\relax
-                    \fi
-%    \end{macrocode}
-%    In certain circumstances we will get a divide-by-zero error here
-%    unless we guard against it. Use of \cs{@tempcnta} is complicated,
-%    sometimes it is assigned globally, sometimes locally. Need to sort
-%    it out one of these days [mjd,2000/06/02].
-%    \begin{macrocode}
-                    \ifnum\@tempcnta>\z@
-                      \divide\dimen@\@tempcnta
-                    \else \dimen@\z@
-                    \fi
-%    \end{macrocode}
-%    As usual, we check to make sure we don't set \cs{alignsep@}
-%    smaller than \cs{minalignsep} and, in any case, that we don't
-%    replace \cs{alignsep@} by a larger value.
-%    \begin{macrocode}
-                    \ifdim\dimen@<\minalignsep\relax
-                        \global\alignsep@\minalignsep\relax
-                        \dimen@\displaywidth
-                        \advance\dimen@-\@tempdima
-                        \advance\dimen@-\@tempcntb\alignsep@
-                        \global\divide\dimen@\tw@
-                    \else
-                        \ifdim\dimen@<\alignsep@
-                            \global\alignsep@\dimen@
-                        \fi
-                    \fi
-%    \end{macrocode}
-%    Next, we calculate an appropriate value of \cs{eqnshift@},
-%    assuming that \cs{dimen@} is the desired separation between the
-%    tag and equation of the current line.  This means that we first
-%    need to adjust \cs{dimen@} if we're in an \env{flalign}
-%    environment.
-%    \begin{macrocode}
-                    \ifnum\xatlevel@=\tw@
-                        \dimen@\mintagsep\relax
-                    \fi
-%    \end{macrocode}
-%    Now we calculate the value of \cs{eqnshift@} needed to produce a
-%    separation of \cs{dimen@} between the equation tag and the
-%    beginning of the equation.  To do this, we need the following
-%    equation to hold:
-%    \[
-%       \cs{eqnshift@} + n\cs{alignsep@} + \cs{@tempdimb}
-%           = \cs{tagwidth@} + \cs{dimen@}
-%    \]
-%    where $n = \cs{count@}$ is the number of interalign spaces before
-%    the first non-empty field of the current line.
-%    \begin{macrocode}
-                    \advance\dimen@\tagwidth@
-                    \advance\dimen@-\@tempdimb
-                    \advance\dimen@-\count@\alignsep@
-%    \end{macrocode}
-%    The value of \cs{eqnshift@} just calculated is the minimum
-%    acceptable value; thus, we save it only if it is larger than the
-%    current value.
-%    \begin{macrocode}
-                    \ifdim\dimen@>\eqnshift@
-                        \global\eqnshift@\dimen@
-                    \fi
-                \fi
-            \fi
-        \endgroup
-    }
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\x@lcalc@width}
-%    This macro calculates the ``indentation'' of the current row, as
-%    defined above under the description of \cs{x@calc@shift@lc}.
-%    This macro is called for each field of the current line, with
-%    \cs{@tempa} set to the width of the current field.  Ideally, the
-%    loop enclosing \cs{x@lcalc@width} would terminate as soon as
-%    \cs{@tempa} is non-zero, but that would be a bit tricky to
-%    arrange.  Instead, we use \cs{@tempdima} as a flag to signal when
-%    we've encountered the first non-empty field.
-%
-%    \begin{macrocode}
-    \def\x@lcalc@width{%
-        \ifdim\@tempdima = \z@
-%    \end{macrocode}
-%    If the current field is empty (i.e., $\cs{@tempa} =
-%    \mathrm{0\,pt}$, then we increment \cs{@tempdimb} by the width of
-%    the current field).  Otherwise, we set $\cs{@tempdima} =
-%    \mathrm{1\,pt}$ as a signal value and increment \cs{@tempdimb} by
-%    the width of whatever empty space there might be at the left of
-%    the current field.
-%    \begin{macrocode}
-            \ifdim\@tempa > \z@
-                \@tempdima\p@
-                \ifodd\column@
-                    \advance\@tempdimb \maxcol@width\column@
-                    \advance\@tempdimb-\@tempa
-                \fi
-%    \end{macrocode}
-%    In addition, we need to adjust the values of \cs{@tempcnta} and
-%    \cs{@tempcntb} to account for any empty align structures that
-%    might occur at the beginning of the current line.  More
-%    specifically, we first set \cs{count@} equal to the number of
-%    interalign spaces preceding the current field (namely, $\lfloor
-%    (\cs{\column@}-1)/2 \rfloor$), and then subtract \cs{count@} from
-%    both \cs{@tempcnta} and \cs{@tempcntb}.  The rationale is that
-%    for the purposes of adjusting the spacing between the tag and the
-%    equation, the only flexible interalign spaces are those after
-%    the first non-empty align structure, so we need to treat those
-%    different from the ones before the first non-empty align
-%    structure.
-%    \begin{macrocode}
-                \count@\column@
-                \advance\count@\m@ne
-                \divide\count@\tw@
-                \advance\@tempcnta-\count@
-                \advance\@tempcntb-\count@
-            \else
-                \advance\@tempdimb \maxcol@width\column@\relax
-            \fi
-        \fi
-    }
-\fi\fi
-%    \end{macrocode}
-%    \end{macro}
-%
-%  \begin{macro}{\place@tag}
-%    \cs{place@tag} takes care of the placment of tags in the
-%    \env{align} environments.
-%    \begin{macrocode}
-\def\place@tag{%
-    \iftagsleft@
-        \kern-\tagshift@
-        \if1\shift@tag\row@\relax
-            \rlap{\vbox{%
-                \normalbaselines
-                \boxz@
-                \vbox to\lineht@{}%
-                \raise@tag
-            }}%
-        \else
-            \rlap{\boxz@}%
-        \fi
-        \kern\displaywidth@
-    \else
-        \kern-\tagshift@
-        \if1\shift@tag\row@\relax
-%    \end{macrocode}
-%    Added depth to correct vertical spacing of shifted
-%    equation tags.---dmj, 1994/12/29
-%    \begin{macrocode}
-            \llap{\vtop{%
-                \raise@tag
-                \normalbaselines
-                \setbox\@ne\null
-                \dp\@ne\lineht@
-                \box\@ne
-                \boxz@
-            }}%
-        \else
-            \llap{\boxz@}%
-        \fi
-    \fi
-}
-%    \end{macrocode}
-%  \end{macro}
-%
-% \begin{macro}{\align@preamble}
-%    \begin{macrocode}
-\def\align@preamble{%
-   &\hfil
-    \strut@
-    \setboxz@h{\@lign$\m@th\displaystyle{##}$}%
-    \ifmeasuring@\savefieldlength@\fi
-    \set@field
-    \tabskip\z@skip
-   &\setboxz@h{\@lign$\m@th\displaystyle{{}##}$}%
-    \ifmeasuring@\savefieldlength@\fi
-    \set@field
-    \hfil
-    \tabskip\alignsep@
-}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{\set@field}
-%    \cs{set@field} increments the column counter, tracks the value of
-%    \cs{lineht@} and finally inserts the box containing the contents
-%    of the current field.
-%    \begin{macrocode}
-\def\set@field{%
-    \column@plus
-    \iftagsleft@
-        \ifdim\ht\z@>\lineht@
-            \global\lineht@\ht\z@
-        \fi
-    \else
-        \ifdim\dp\z@>\lineht@
-            \global\lineht@\dp\z@
-        \fi
-    \fi
-    \boxz@
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%
-% \subsection {The \env{split} environment}
-%
-%    \begin{macro}{\split@err}
-%    A special error function for \env{split} to conserve main mem (at a
-%    cost of string pool/hash size.
-%    \begin{macrocode}
-\edef\split@err#1{%
-    \@nx\@amsmath@err{%
-        \string\begin{split} won't work here%
-    }{%
-        \@xp\@nx\csname
-  Did you forget a preceding \string\begin{equation}?^^J%
-  If not, perhaps the `aligned' environment is what
-  you want.\endcsname}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{environment}{split}
-%    If the \env{split} environment occurs inside \env{align} or
-%    \env{gather}, it can make use of the enclosing halign; if it is
-%    called inside a simple equation, we add an implicit `gather'
-%    container.
-%
-%    \begin{macrocode}
-\newenvironment{split}{%
-  \if@display
-    \ifinner
-      \@xp\@xp\@xp\split@aligned
-    \else
-      \ifst@rred \else \global\@eqnswtrue \fi
-    \fi
-  \else \let\endsplit\@empty \@xp\collect@body\@xp\split@err
-  \fi
-  \collect@body\gather@split
-}{%
-      \crcr
-    \egroup
-  \egroup
-  \iftagsleft@ \@xp\lendsplit@ \else \@xp\rendsplit@ \fi
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\let\split@tag\relax % init
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\gather@split#1#2#3{%
-  \@xp\endgroup \reset@equation % math@cr will handle equation numbering
-  \iftag@
-     \toks@\@xp{\df@tag}%
-     \edef\split@tag{%
-       \gdef\@nx\df@tag{\the\toks@}%
-       \global\@nx\tag@true \@nx\nonumber
-     }%
-  \else \let\split@tag\@empty
-  \fi
-  \spread@equation
-%    \end{macrocode}
-%    The extra vcenter wrapper here is not really a good thing but
-%    without it there are compatibility problems with old documents that
-%    throw in some extra material between \verb'\begin{equation}' and
-%    \verb'\begin{split}' (for example, \verb'\hspace{-1pc}' or
-%    \verb'\left\{'). [mjd,1999/09/20]
-%    \begin{macrocode}
-  \vcenter\bgroup
-    \gather@{\split@tag  \begin{split}#1\end{split}}%
-    \def\endmathdisplay@a{%
-      \math@cr \black@ \totwidth@ \egroup
-      \egroup
-    }%
-}
-%    \end{macrocode}
-%
-%    \end{environment}
-%
-% \begin{macro}{\insplit@}
-%    \begin{macrocode}
-\def\insplit@{%
-  \global\setbox\z@\vbox\bgroup
-    \Let@ \chardef\dspbrk@context\@ne \restore@math@cr
-    \default@tag % disallow use of \tag here
-    \ialign\bgroup
-      \hfil
-      \strut@
-      $\m@th\displaystyle{##}$%
-     &$\m@th\displaystyle{{}##}$%
-      \hfill % Why not \hfil?---dmj, 1994/12/28
-      \crcr
-}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\rendsplit@}
-%    Moved the box maneuvers inside the \cs{ifinalign@}, since that is
-%    the only place they are needed.---dmj, 1994/12/28
-%
-%    TODO: Explore interaction of tag-placement algorithm with
-%    \env{split}.  Is there any way for \env{split} to pass the
-%    relevant information out to the enclosing \env{gather} or
-%    \env{align}?
-%    \begin{macrocode}
-\def\rendsplit@{%
-    \ifinalign@
-%    \end{macrocode}
-%    Changed |\box9| into a \cs{vtop} here for better spacing.
-%    \begin{macrocode}
-        \global\setbox9 \vtop{%
-            \unvcopy\z@
-            \global\setbox8 \lastbox
-            \unskip
-        }%
-        \setbox\@ne\hbox{%
-            \unhcopy8
-            \unskip
-            \global\setbox\tw@\lastbox
-            \unskip
-            \global\setbox\thr@@\lastbox
-        }%
-        \ifctagsplit@
-            \gdef\split@{%
-                \hbox to\wd\thr@@{}%
-               &\vcenter{\vbox{\moveleft\wd\thr@@\boxz@}}%
-            }%
-        \else
-            \global\setbox7 \hbox{\unhbox\tw@\unskip}%
-%    \end{macrocode}
-%    Added \cs{add@amps} to make sure we put the last line of the
-%    \env{split} into the proper column of an \env{align} environment
-%    with multiple align structures.---dmj, 1994/12/28
-%
-%    Special care has to be taken in this case because the \env{split}
-%    turns into two lines of the \env{align} instead of just one.  So,
-%    we have to make sure that the first line produced by the
-%    \env{split} doesn't upset our bookkeeping, hence we call
-%    \cs{savetaglength@} to insert 0\,pt as the tag for this
-%    pseudo-line, and we advance the \cs{row@} counter and reset
-%    \cs{lineht@} afterwards.  It would be nice if we could just
-%    replace the \cs{crcr} by \cs{math@cr@@@}, but that would cause
-%    problems with the tag processing.
-%    \begin{macrocode}
-            \gdef\split@{%
-                \global\@tempcnta\column@
-               &\setboxz@h{}%
-                \savetaglength@
-                \global\advance\row@\@ne
-                \vbox{\moveleft\wd\thr@@\box9}%
-                \crcr
-                \noalign{\global\lineht@\z@}%
-                \add@amps\@tempcnta
-                \box\thr@@
-               &\box7
-            }%
-        \fi
-    \else
-        \ifctagsplit@
-            \gdef\split@{\vcenter{\boxz@}}%
-        \else
-%    \end{macrocode}
-%    Changed to just \cs{boxz@}, otherwise last line gets centered
-%    rather than aligned properly with respect to the rest of the
-%    lines.  But this means that we can't see inside of the last line
-%    to decide whether the tag needs to be moved.  Will have to think
-%    about this.---dmj, 1994/12/28
-%    \begin{macrocode}
-            \gdef\split@{%
-                \boxz@
-%                \box9
-%                \crcr
-%                \hbox{\box\thr@@\box7}%
-            }%
-        \fi
-    \fi
-    \aftergroup\split@
-}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\lendsplit@}
-%    \begin{macrocode}
-\def\lendsplit@{%
-    \global\setbox9\vtop{\unvcopy\z@}%
-    \ifinalign@
-%    \end{macrocode}
-%    Moved following two boxes inside the \cs{ifinalign@}, since they
-%    are only used in that case.  In fact, if we just kept track of
-%    the width of the first column, we could dispense with this
-%    entirely.  Surely that would be more efficient than all these box
-%    copies.---dmj, 1994/12/28
-%    \begin{macrocode}
-        \setbox\@ne\vbox{%
-            \unvcopy\z@
-            \global\setbox8\lastbox
-        }%
-        \setbox\@ne\hbox{%
-            \unhcopy8%
-            \unskip
-            \setbox\tw@\lastbox
-            \unskip
-            \global\setbox\thr@@\lastbox
-        }%
-        \ifctagsplit@
-            \gdef\split@{%
-                \hbox to\wd\thr@@{}%
-               &\vcenter{\vbox{\moveleft\wd\thr@@\box9}}%
-            }%
-        \else
-            \gdef\split@{%
-                \hbox to\wd\thr@@{}%
-               &\vbox{\moveleft\wd\thr@@\box9}%
-            }%
-        \fi
-    \else
-        \ifctagsplit@
-            \gdef\split@{\vcenter{\box9}}%
-        \else
-            \gdef\split@{\box9}%
-        \fi
-    \fi
-    \aftergroup\split@
-}
-%    \end{macrocode}
-% \end{macro}
-%
-%    With \pkg{amsmath} 1.2 it was possible to put things like
-%    \verb'\left\{' between \verb'\begin{equation}' and
-%    \verb'\begin{split}' without getting any error message. For
-%    backward compatibility we try to avoid a fatal error in this case
-%    and instead attempt recovery with \env{aligned}.
-%    \begin{macrocode}
-\def\split@aligned#1#2{%
-   \iffalse{\fi\ifnum0=`}\fi
-   \collect@body\split@al@a}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\split@al@a#1#2#3{%
-  \split@warning
-  \endgroup
-%    \end{macrocode}
-%    If the \opt{fleqn} and \opt{tbtags} options are both in effect then
-%    we will need to add an optional argument on the \env{aligned}
-%    environment.
-%    \begin{macrocode}
-  \toks@{\begin{aligned}}%
-  \if@fleqn \split@al@tagcheck \fi
-%    \end{macrocode}
-%    The \cs{relax} here is to prevent \cs{@let@token} from being left
-%    equal to an ampersand if that happens to be the first thing in the body.
-%    \begin{macrocode}
-  \the\toks@\relax#1\end{aligned}%
-  \ifnum0=`{\fi\iffalse}\fi
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\split@al@tagcheck{%
-   \ifctagsplit@
-   \else
-     \iftagsleft@ \toks@\@xp{\the\toks@ [t]}%
-     \else \toks@\@xp{\the\toks@ [b]}%
-     \fi
-   \fi
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\split@warning{%
-  \PackageWarning{amsmath}{%
-Cannot use `split' here;\MessageBreak trying to recover with `aligned'}%
-}
-%    \end{macrocode}
-%
-% \subsection{The \env{multline} environment}
-%
-%    In the original \amstex/, \cn{multlinegap} is a macro with an
-%    argument that resets an internal dimension (one with an \qc{\@}
-%    character in its name). Here, to save control sequence names, we
-%    define \cn{multlinegap} to be the dimension itself and the
-%    documentation instructs users to use \cn{setlength} if they
-%    need to change it.
-% \begin{macro}{\multlinegap}
-% \begin{macro}{\multlinetaggap}
-%    Changed \cs{multlinegap} and \cs{multlinetaggap} to skip
-%    registers.  Also changed name to \cs{multlinetaggap} from
-%    \cs{multlinetaggap@}.
-%    \begin{macrocode}
-\newskip\multlinegap
-\multlinegap10pt
-\newskip\multlinetaggap
-\multlinetaggap10pt
-%    \end{macrocode}
-% \end{macro}
-% \end{macro}
-%
-%    \begin{macro}{\start@multline}
-%    \begin{macrocode}
-\def\start@multline#1{%
-    \RIfM@
-        \nomath@env
-        \DN@{\@namedef{end\@currenvir}{}\@gobble}%
-    \else
-        $$%
-        #1%
-        \ifst@rred
-            \nonumber
-        \else
-            \global\@eqnswtrue
-        \fi
-        \let\next@\multline@
-    \fi
-    \collect@body\next@
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \begin{environment}{multline}
-% \begin{environment}{multline*}
-%    \begin{macrocode}
-\newenvironment{multline}{%
-  \start@multline\st@rredfalse
-}{%
-  \iftagsleft@ \@xp\lendmultline@ \else \@xp\rendmultline@ \fi
-  \ignorespacesafterend
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\newenvironment{multline*}{\start@multline\st@rredtrue}{\endmultline}
-%    \end{macrocode}
-% \end{environment}
-% \end{environment}
-%
-% \begin{macro}{\multline@}
-%    \begin{macrocode}
-\def\multline@#1{%
-    \Let@
-%    \end{macrocode}
-%
-%    For multline neither \cs{displ@y} no \cs{displ@y@} is quite right;
-%    we want to advance the row number and (I suppose?) the
-%    display-pagebreak level, but we only want to do tag-related stuff
-%    once before the first line, not repeat it for every line. (Recall
-%    that the arg of \cs{@display@init} goes into \cs{everycr}.)
-%    \begin{macrocode}
-    \@display@init{\global\advance\row@\@ne \global\dspbrk@lvl\m@ne}%
-    \chardef\dspbrk@context\z@
-    \restore@math@cr
-%    \end{macrocode}
-%    The \env{multline} environment is somewhat unusual, in that
-%    \cs{tag} and \cs{label} are enabled only during the measuring
-%    phase and disabled during the production phase.
-%    Here we disable \cs{tag} and \cs{label}; \cs{mmeasure@} will
-%    re-enable them temporarily.
-%    \begin{macrocode}
-    \let\tag\tag@in@align
-    \global\tag@false \global\let\raise@tag\@empty
-    \mmeasure@{#1}%
-    \let\tag\gobble@tag \let\label\@gobble
-    \tabskip \if@fleqn \@mathmargin \else \z@skip \fi
-    \totwidth@\displaywidth
-    \if@fleqn
-        \advance\totwidth@-\@mathmargin
-    \fi
-    \halign\bgroup
-        \hbox to\totwidth@{%
-%    \end{macrocode}
-%    In order to get the spacing of the last line right in fleqn
-%    mode, we need to play a little game here.  Normally the
-%    stretchability of the \cs{hskip} here will be suppressed by the
-%    \cs{hfil} at the end of the template, except inside the last line,
-%    when that \cs{hfil} will be removed by the \cs{hfilneg} in
-%    \cs{lendmultline@}.
-%    \begin{macrocode}
-            \if@fleqn
-                \hskip \@centering \relax
-            \else
-                \hfil
-            \fi
-            \strut@
-            $\m@th\displaystyle{}##\endmultline@math
-            \hfil
-        }%
-        \crcr
-%    \end{macrocode}
-%    In \opt{fleqn} mode, it's the \cs{tabskip} of \cs{@mathmargin}
-%    that needs to be removed in the first line, not the \cs{hfil} at
-%    the beginning of the template.
-%    \begin{macrocode}
-        \if@fleqn
-            \hskip-\@mathmargin
-            \def\multline@indent{\hskip\@mathmargin}% put it back
-        \else
-            \hfilneg
-            \def\multline@indent{\hskip\multlinegap}%
-        \fi
-        \iftagsleft@
-            \iftag@
-                \begingroup
-                    \ifshifttag@
-                        \rlap{\vbox{%
-                                \normalbaselines
-                                \hbox{%
-                                    \strut@
-                                    \make@display@tag
-                                }%
-                                \vbox to\lineht@{}%
-                                \raise@tag
-                        }}%
-%    \end{macrocode}
-%    If the equation tag doesn't fit on the same line with the first
-%    line of the display, we'll indent the first line by
-%    \cn{multlinegap}.  This is a change from \pkg{amstex}, where the
-%    first line would have been flush against the left margin in this
-%    case.  A corresponding change will be made in \cs{rendmultline@}.
-%    \begin{macrocode}
-                        \multline@indent
-                    \else
-                        \setbox\z@\hbox{\make@display@tag}%
-                        \dimen@\@mathmargin \advance\dimen@-\wd\z@
-                        \ifdim\dimen@<\multlinetaggap
-                          \dimen@\multlinetaggap
-                        \fi
-                        \box\z@ \hskip\dimen@\relax
-                    \fi
-                \endgroup
-            \else
-                \multline@indent
-            \fi
-        \else
-            \multline@indent
-        \fi
-    #1%
-}
-%    \end{macrocode}
-%
-%    An extra level of indirection for the closing \verb'$' in multline
-%    allows us to avoid getting an extra thinmuskip from a final
-%    mathpunct in the equation contents, when equation numbers are on
-%    the right. If we did not use this workaround, the sequence of
-%    elements for a final comma would be, e.g.,
-% \begin{verbatim}
-% ... ,<hskip><box containing equation number>
-% \end{verbatim}
-%    which is equivalent to a sequence \verb'<mathpunct><mathord>' as
-%    far as the automatic math spacing is concerned.
-%    \begin{macrocode}
-\def\endmultline@math{$}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\lendmultline@}
-%    Bug fix: changed \cs{crcr} to \cs{math@cr} so that \cs{@eqpen}
-%    gets reset properly if \cs{displaybreak} is used on the
-%    penultimate line of an \env{align}.
-%    \begin{macrocode}
-\def\lendmultline@{%
-        \hfilneg
-        \hskip\multlinegap
-        \math@cr
-    \egroup
-    $$%
-}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\rendmultline@}
-%    \begin{macrocode}
-\def\rendmultline@{%
-    \iftag@
-        $\let\endmultline@math\relax
-            \ifshifttag@
-                \hskip\multlinegap
-%    \end{macrocode}
-%    Added depth to correct vertical spacing of shifted equation
-%    tags.---dmj, 1994/12/29
-%    \begin{macrocode}
-                \llap{\vtop{%
-                    \raise@tag
-                    \normalbaselines
-                    \setbox\@ne\null
-                    \dp\@ne\lineht@
-                    \box\@ne
-                    \hbox{\strut@\make@display@tag}%
-                }}%
-            \else
-                \hskip\multlinetaggap
-                \make@display@tag
-            \fi
-    \else
-        \hskip\multlinegap
-    \fi
-    \hfilneg
-%    \end{macrocode}
-%    Use \cs{math@cr} rather than just \cs{crcr} so that \cs{@eqpen}
-%    gets reset properly if \cs{displaybreak} is used.
-%    \begin{macrocode}
-        \math@cr
-    \egroup$$%
-}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\mmeasure@}
-%    \begin{macrocode}
-\def\mmeasure@#1{%
-    \begingroup
-        \measuring@true
-%    \end{macrocode}
-%    We use \cs{begin/endgroup} rather than |{}| in this definition of
-%    \cn{label} because the latter would create an extra (wasteful of
-%    main mem) null box in the current math list. [mjd, 1995/01/17]
-%    \begin{macrocode}
-        \def\label##1{%
-          \begingroup\measuring@false\label@in@display{##1}\endgroup}%
-        \def\math@cr@@@{\cr}%
-        \let\shoveleft\@iden \let\shoveright\@iden
-        \savecounters@
-        \global\row@\z@
-        \setbox\@ne\vbox{%
-            \global\let\df@tag\@empty
-            \halign{%
-                \setboxz@h{\@lign$\m@th\displaystyle{}##$}%
-                \iftagsleft@
-                    \ifnum\row@=\@ne
-                        \global\totwidth@\wdz@
-                        \global\lineht@\ht\z@
-                    \fi
-                \else
-                    \global\totwidth@\wdz@
-                    \global\lineht@\dp\z@
-                \fi
-                \crcr
-                #1%
-                \crcr
-            }%
-        }%
-        \ifx\df@tag\@empty\else\global\tag@true\fi
-        \if@eqnsw\global\tag@true\fi
-        \iftag@
-            \setboxz@h{%
-                \if@eqnsw
-                    \stepcounter{equation}%
-                    \tagform@\theequation
-                \else
-                    \df@tag
-                \fi
-            }%
-            \global\tagwidth@\wdz@
-            \dimen@\totwidth@
-            \advance\dimen@\tagwidth@
-            \advance\dimen@\multlinetaggap
-            \iftagsleft@\else
-                \if@fleqn
-                    \advance\dimen@\@mathmargin
-                \fi
-            \fi
-            \ifdim\dimen@>\displaywidth
-                \global\shifttag@true
-            \else
-                \global\shifttag@false
-            \fi
-        \fi
-        \restorecounters@
-    \endgroup
-}
-%    \end{macrocode}
-% \end{macro}
-%
-%    \begin{macro}{\shoveleft}
-%    \begin{macro}{\shoveright}
-%    \cs{shoveleft} and \cs{shoveright} need to do slightly different
-%    things depending on whether tags are on the left or the right and
-%    whether we're in \opt{fleqn} mode.  For compactness of code, we
-%    make the appropriate decisions at ``compile'' time rather than at
-%    load time.
-%
-%    TODO: Investigate making \cs{shoveright} behave ``properly''(?) if
-%    used on the first line of a \env{multline} and make \cs{shoveleft}
-%    behave properly if used on the last line of a \env{multline}. But
-%    in his \fn{amstex.doc} Spivak indicates those commands should never
-%    be used on a first or last line. Perhaps better to leave the
-%    question open unless/until real-life examples turn up.
-%    \begin{macrocode}
-\iftagsleft@
-    \def\shoveright#1{%
-        #1%
-        \hfilneg
-        \hskip\multlinegap
-    }
-\else
-    \def\shoveright#1{%
-        #1%
-        \hfilneg
-        \iftag@
-            \ifshifttag@
-                \hskip\multlinegap
-            \else
-                \hskip\tagwidth@
-                \hskip\multlinetaggap
-            \fi
-        \else
-            \hskip\multlinegap
-        \fi
-    }
-\fi
-
-\if@fleqn
-    \def\shoveleft#1{#1}%
-\else
-    \iftagsleft@
-        \def\shoveleft#1{%
-            \setboxz@h{$\m@th\displaystyle{}#1$}%
-            \setbox\@ne\hbox{$\m@th\displaystyle#1$}%
-            \hfilneg
-            \iftag@
-                \ifshifttag@
-                    \hskip\multlinegap
-                \else
-                    \hskip\tagwidth@
-                    \hskip\multlinetaggap
-                \fi
-            \else
-                \hskip\multlinegap
-            \fi
-            \hskip.5\wd\@ne
-            \hskip-.5\wdz@
-            #1%
-        }
-    \else
-        \def\shoveleft#1{%
-            \setboxz@h{$\m@th\displaystyle{}#1$}%
-            \setbox\@ne\hbox{$\m@th\displaystyle#1$}%
-            \hfilneg
-            \hskip\multlinegap
-            \hskip.5\wd\@ne
-            \hskip-.5\wdz@
-            #1%
-        }
-    \fi
-\fi
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%
-%    \subsection{The \env{equation} environment}
-%
-%    Rewritten from the ground up for version 2.0 to fix no-shrink and
-%    no-shortskips bugs [mjd,2000/01/06].
-%
-%    Standard \latex/ provides three environments for one-line equations:
-%    \cn{[}\cn{]}, \env{equation}, and \env{displaymath}. We add
-%    \env{equation*} as a synonym for \env{displaymath}.
-%    \begin{macrocode}
-\@saveprimitive\leqno\@@leqno
-\@saveprimitive\eqno\@@eqno
-\def\eqno{\@@eqno\let\eqno\relax\let\leqno\relax}
-\def\leqno{\@@leqno\let\leqno\relax\let\eqno\relax}
-%
-\let\veqno=\@@eqno
-\iftagsleft@ \let\veqno=\@@leqno \fi
-%    \end{macrocode}
-%
-%    Support for the \pkg{showkeys} package: provide no-op definitions
-%    for a couple of SK functions, if they are not already defined. Then
-%    we can just call them directly in our code without any extra fuss.
-%    If the \pkg{showkeys} package is loaded later, our trivial
-%    definitions will get overridden and everything works fine.
-%    \begin{macrocode}
-\@ifundefined{SK@@label}{%
-  \let\SK@@label\relax \let\SK@equationtrue\relax
-}{}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\let\reset@equation\@empty
-%    \end{macrocode}
-%
-%    Cf \cs{tag@in@align}. This is a bit of a mess though. Could use
-%    some work. [mjd,1999/12/21]
-%    \begin{macrocode}
-\let\alt@tag\@empty
-\def\tag@in@display#1#{\relax\tag@in@display@a{#1}}
-\def\tag@in@display@a#1#2{%
-  \iftag@
-    \invalid@tag{Multiple \string\tag}\relax
-  \else
-    \global\tag@true \nonumber \reset@equation \st@rredtrue
-    \if *\string#1%
-      \gdef\alt@tag{\def\SK@tagform@{#2\@gobble}%
-        \ifx\SK@@label\relax \let\tagform@\SK@tagform@ \fi
-      }%
-      \make@df@tag@@{#2}%
-    \else
-      \make@df@tag@@@{#2}%
-    \fi
-  \fi
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\let\restore@hfuzz\@empty
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\mathdisplay#1{%
-  \ifmmode \@badmath
-  \else
-    $$\def\@currenvir{#1}%
-%    \end{macrocode}
-%    Allow use of \cn{displaybreak}.
-%    \begin{macrocode}
-    \let\dspbrk@context\z@
-%    \end{macrocode}
-%    Although in some cases simpler label handling would seem to be
-%    sufficient, always using \cs{label@in@display} makes it easier to
-%    support the \pkg{showkeys} package.
-%    \begin{macrocode}
-    \let\tag\tag@in@display \let\label\label@in@display \SK@equationtrue
-    \global\let\df@label\@empty \global\let\df@tag\@empty
-    \global\tag@false
-    \let\mathdisplay@push\mathdisplay@@push
-    \let\mathdisplay@pop\mathdisplay@@pop
-    \if@fleqn
-%    \end{macrocode}
-%    Turn off overfull box messages temporarily\mdash otherwise there
-%    would be unwanted extra ones emitted during our measuring
-%    operations.
-%    \begin{macrocode}
-      \edef\restore@hfuzz{\hfuzz\the\hfuzz\relax}%
-      \hfuzz\maxdimen
-%    \end{macrocode}
-%    Initially set the equation body in a box of displaywidth. Then if
-%    the box is not overfull, as we find by checking \cs{badness}, we
-%    have acquired useful information for the subsequent processing.
-%    \begin{macrocode}
-      \setbox\z@\hbox to\displaywidth\bgroup
-        \let\split@warning\relax \restore@hfuzz
-        \everymath\@emptytoks \m@th $\displaystyle
-    \fi
-  \fi
-}
-%    \end{macrocode}
-%
-%    Arg 1 is not currently used. I thought it might come in handy for
-%    error messages.
-%    \begin{macrocode}
-\def\endmathdisplay#1{%
-  \ifmmode \else \@badmath \fi
-  \endmathdisplay@a
-  $$%
-%    \end{macrocode}
-%    I guess the following code means this structure is non-reentrant.
-%    But there is plenty of scope for tricky bugs here; suppressing them
-%    by brute force at least makes it possible to get things working
-%    correctly for normal use. [mjd,2000/01/06]
-%    \begin{macrocode}
-  \global\let\df@label\@empty \global\let\df@tag\@empty
-  \global\tag@false \global\let\alt@tag\@empty
-  \global\@eqnswfalse
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\endmathdisplay@a{%
-  \if@eqnsw \gdef\df@tag{\tagform@\theequation}\fi
-  \if@fleqn \@xp\endmathdisplay@fleqn
-  \else \ifx\df@tag\@empty \else \veqno \alt@tag \df@tag \fi
-    \ifx\df@label\@empty \else \@xp\ltx@label\@xp{\df@label}\fi
-  \fi
-  \ifnum\dspbrk@lvl>\m@ne
-    \postdisplaypenalty -\@getpen\dspbrk@lvl
-    \global\dspbrk@lvl\m@ne
-  \fi
-}
-%    \end{macrocode}
-%
-%    A boolean variable: Was that last box overfull or not? A value of 0
-%    means yes, it was overfull.
-%    \begin{macrocode}
-\let\too@wide\@ne
-%    \end{macrocode}
-%
-%    Special handling is needed for flush-left equations. We need to
-%    measure the equation body (found in box 0 after we close it with
-%    the \cs{egroup}). Then after a fairly normal test to see if it fits
-%    within the available space, we need to consider overlapping into
-%    the displayindent area if displayindent is nonzero (as in an
-%    indented list). If there is an equation number we may have to shift
-%    it by hand to a separate line when there is not enough room;
-%    we can no longer take advantage of the automatic shifting provided
-%    by the \cn{leqno}, \cn{eqno} primitives.
-%
-%    We initially add \cs{@mathmargin} glue at the end of box 0 to get
-%    an accurate overfull test. If \cs{@mathmargin} contains any shrink
-%    then we cannot reliably tell whether the box will be overfull or
-%    not simply by doing hand calculations from the actual width of the
-%    equation body. We have to actually set the box and find out what
-%    happens.
-%
-%    On the other hand if we put the \cs{@mathmargin} glue at the
-%    beginning of the box it's awkward to remove it afterwards. So we
-%    first put it in at the end and later we will move it to the
-%    beginning as needed.
-%
-%    \begin{macrocode}
-\def\endmathdisplay@fleqn{%
-  $\hfil\hskip\@mathmargin\egroup
-%    \end{macrocode}
-%    We need to save the information about whether box 0 was overfull in
-%    a variable, otherwise it will disappear in the next setbox
-%    operation. And we couldn't set the equation number box earlier than
-%    now, because the body of the equation might have contained a
-%    \cs{tag} command (well, it could have been done, but this way
-%    we can reuse the tag-handling code from elsewhere).
-%    \begin{macrocode}
-  \ifnum\badness<\inf@bad \let\too@wide\@ne \else \let\too@wide\z@ \fi
-  \ifx\@empty\df@tag
-  \else
-    \setbox4\hbox{\df@tag
-      \ifx\df@label\@empty \else \@xp\ltx@label\@xp{\df@label}\fi
-    }%
-  \fi
-  \csname emdf@%
-    \ifx\df@tag\@empty U\else \iftagsleft@ L\else R\fi\fi
-  \endcsname
-}
-%    \end{macrocode}
-%
-%    For an unnumbered flush-left equation we hope first that the
-%    the contents fit within displaywidth. If not we need to fall back
-%    on a more complicated reboxing operation.
-%    \begin{macrocode}
-\def\emdf@U{%
-  \restore@hfuzz
-  \ifodd\too@wide % not too wide: just need to swap the glue around
-    \hbox to\displaywidth{\hskip\@mathmargin\unhbox\z@\unskip}%
-  \else % M+B > displaywidth
-    \emdf@Ua
-  \fi
-}
-%    \end{macrocode}
-%
-%    Some notation: $M$ \cs{@mathmargin}, $B$ the width of the equation
-%    body, $I$ \cs{displayindent}, $D$ \cs{displaywidth}, $N$ the width
-%    of the equation number (aka the tag), $S$ \cs{mintagsep}, $C$
-%    \cs{columnwidth}. If $M+B > \mbox{displaywidth}$, and if we assume
-%    $M$ contains shrink, then the only solution left is to encroach
-%    into the displayindent space.
-%    \begin{macrocode}
-\def\emdf@Ua{%
-  \hbox to\columnwidth{%
-    \ifdim\displayindent>\z@
-      \hskip\displayindent minus\displayindent
-    \fi
-    \hskip\@mathmargin \unhbox\z@ \unskip
-  }%
-  \displayindent\z@ \displaywidth\columnwidth
-}
-%    \end{macrocode}
-%
-%    Find out first if the tag fits in ideal position. If so we can just
-%    plunk down box 2. Otherwise we need to do something more complicated.
-%    \begin{macrocode}
-\def\emdf@R{%
-  \setbox\tw@\hbox to\displaywidth{%
-    \hskip\@mathmargin \unhcopy\z@\unskip\hfil\hskip\mintagsep\copy4
-  }%
-  \restore@hfuzz
-  \ifnum\badness<\inf@bad \box\tw@ \else \emdf@Ra \fi
-}
-%    \end{macrocode}
-%
-%    We shift the equation number to line 2 if it does not fit within
-%    \cs{displaywidth}. Note that we do not first attempt to let the
-%    equation body shift leftward into the \cs{displayindent} space. If
-%    that is desired it will have to be done by hand by adding negative
-%    space at the beginning of the equation body. I don't expect this to
-%    arise very often in practice since most of the time
-%    \cs{displayindent} is zero anyway.
-%    \begin{macrocode}
-\def\emdf@Ra{%
-  \skip@\displayindent minus\displayindent
-  \displayindent\z@ \displaywidth\columnwidth
-  \spread@equation \everycr{}\tabskip\z@skip
-  \halign{\hbox to\displaywidth{##}\cr
-    \relax
-    \ifdim\skip@>\z@ \hskip\skip@ \fi
-    \hskip\@mathmargin\unhbox\z@\unskip\hfil\cr
-    \noalign{\raise@tag}%
-    \hfil\box4 \cr}%
-}
-%    \end{macrocode}
-%
-%    Find out first if the tag fits in ideal position. If so we can just
-%    plunk down box 2. Otherwise we need to do something more
-%    complicated.
-%    \begin{macrocode}
-\def\emdf@L{%
-%    \end{macrocode}
-%    Calculate the difference between $M$ and $N+S$. If the latter is
-%    greater, we don't want to add any extra glue between the number and
-%    the equation body. Otherwise the amount that we want to add is
-%    \verb'x minus x' where $x=M-(N+S)$. I.e., the distribution of
-%    spaces across the line is $N,S,x minus x,B,hfil$.
-%    \begin{macrocode}
-  \@tempdima\@mathmargin
-  \advance\@tempdima-\wd4 \advance\@tempdima-\mintagsep
-  \skip@\@tempdima minus\@tempdima
-  \setbox\tw@\hbox to\displaywidth{%
-    \copy4\hskip\mintagsep
-    \ifdim\skip@>\z@ \hskip\skip@\fi
-    \unhcopy\z@\unskip
-  }%
-  \restore@hfuzz
-  \ifnum\badness<\inf@bad \box\tw@ \else \emdf@La \fi
-}
-%    \end{macrocode}
-%
-%    If the equation body and equation number will not fit on the same
-%    line, we put the number on line 1 and the body on line 2, with the
-%    body positioned as for an unnumbered equation.
-%    \begin{macrocode}
-\def\emdf@La{%
-  \spread@equation \everycr{}\tabskip\z@skip
-  \halign{\hbox to\displaywidth{##}\cr
-    \box4 \hfil \cr
-    \noalign{\raise@tag}%
-    \hskip\@mathmargin\unhbox\z@\unskip\hfil\cr}%
-}
-%    \end{macrocode}
-%
-%    If someone has \verb'\[ \]' nested inside a minipage environment
-%    nested inside a numbered equation, the mathdisplay variables that
-%    are global will get out of whack unless we take extra care. So we
-%    make a stack and push all the variables before entering mathdisplay
-%    and pop them afterwards. But we can save a little work by not doing
-%    this at the top level, only at inner levels.
-%    \begin{macrocode}
-\newtoks\mathdisplay@stack
-\let\mathdisplay@push\@empty
-\def\mathdisplay@@push{%
-  \begingroup
-  \toks@\@xp{\df@label}\@temptokena\@xp{\df@tag}%
-  \toks8\@xp{\alt@tag}%
-  \edef\@tempa{%
-    \global\if@eqnsw\@nx\@eqnswtrue\else\@nx\@eqnswfalse\fi
-    \global\iftag@\@nx\tag@false\else\@nx\tag@true\fi
-    \gdef\@nx\df@label{\the\toks@}\gdef\@nx\df@tag{\the\@temptokena}%
-    \gdef\@nx\alt@tag{\the\toks8}%
-    \global\mathdisplay@stack{\the\mathdisplay@stack}%
-  }%
-  \global\mathdisplay@stack\@xp{\@tempa}
-  \endgroup
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\let\mathdisplay@pop\@empty
-\def\mathdisplay@@pop{\the\mathdisplay@stack}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\renewenvironment{equation}{%
-  \incr@eqnum
-  \mathdisplay@push
-  \st@rredfalse \global\@eqnswtrue
-  \mathdisplay{equation}%
-}{%
-  \endmathdisplay{equation}%
-  \mathdisplay@pop
-  \ignorespacesafterend
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\newenvironment{equation*}{%
-  \mathdisplay@push
-  \st@rredtrue \global\@eqnswfalse
-  \mathdisplay{equation*}%
-}{%
-  \endmathdisplay{equation*}%
-  \mathdisplay@pop
-  \ignorespacesafterend
-}
-%    \end{macrocode}
-%
-%    Note: \latex/ defines the \env{displaymath} environment in
-%    terms of \cn{[} and \cn{]}.
-%    \begin{macrocode}
-\DeclareRobustCommand{\[}{\begin{equation*}}
-\DeclareRobustCommand{\]}{\end{equation*}}
-%    \end{macrocode}
-%
-%    The usual \cs{endinput} to ensure that random garbage at the end of
-%    the file doesn't get copied by \fn{docstrip}.
-%    \begin{macrocode}
-\endinput
-%    \end{macrocode}
-%
-% \section{Credits}
-%
-%    Much of the code for the \pkg{amsmath} package had its orgin in
-%    \fn{amstex.tex}, written by Michael Spivak. The initial work of
-%    porting \fn{amstex.tex} to \fn{amstex.sty} was done in 1988--1989
-%    by Frank Mittelbach and Rainer Sch\"opf. In 1994 David M. Jones
-%    added the support for the \opt{fleqn} option and did extensive
-%    improvements to the \env{align[at]} family of environments and to
-%    the equation number handling in general. Michael Downes at the AMS
-%    served as coordinator for the efforts of Mittelbach, Sch\"opf, and
-%    Jones, and has contributed various bug fixes and additional
-%    refinements over time.
-%
-%    Versions 1.0 and 1.1 of the package carried the name \pkg{amstex}
-%    instead of \pkg{amsmath}, to indicate its origins; the name was
-%    changed in 1994 to make it user-oriented rather than
-%    history-oriented.
-%
-% \changes{v1.2b}{1995/02/15}{Added kern -alignsep@ to math@cr@@@align}
-% \changes{v1.2b}{1995/02/15}{Modified one piece of measure@}
-% \changes{v1.2b}{1995/02/15}{Cleaned out some obsolete commentary}
-% \changes{v1.2b}{1995/02/15}{Changed kern tagshift@ to kern -tagshift@
-%   in the reqno case of place@tag}
-%
-% \changes{v1.2c}{1996/11/01}{Changed `over etc from error to warning}
-%
-% \changes{v1.2d}{1997/03/20}{%
-%   Removed dependency on mixed-case fd file names}
-%
-% \CheckSum{6699}
-% \Finale
diff --git a/Master/texmf-dist/source/latex/amslatex/amsmidx.dtx b/Master/texmf-dist/source/latex/amslatex/amsmidx.dtx
deleted file mode 100644
index 3692d6cc76c..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/amsmidx.dtx
+++ /dev/null
@@ -1,241 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsmidx.dtx",
-%%%   version   = "2.01",
-%%%   date      = "2004/08/03",
-%%%   time      = "14:45:42 EDT",
-%%%   checksum  = "63234 241 948 8307",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995, 2004 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Publications Technical Group,
-%%%                201 Charles Street,
-%%%                Providence, RI 02904,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, amslatex, multiple indexes",
-%%%   supported = "yes",
-%%%   abstract  = "This is part of the AMS-\LaTeX{} distribution.
-%%%                It contains code to support the creation and
-%%%                typesetting of multiple indexes with AMS-LaTeX{}
-%%%                document classes, superseding the single-index
-%%%                facilities built into those document classes.
-%%%                It also provides a facility to insert a paragraph
-%%%                of comments between the title and the index proper",
-%%%   docstring = "The checksum field above contains a CRC-16
-%%%                checksum as the first value, followed by the
-%%%                equivalent of the standard UNIX wc (word
-%%%                count) utility output of lines, words, and
-%%%                characters.  This is produced by Robert
-%%%                Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-% \iffalse
-%<*driver>
-\documentclass{amsdtx}
-\begin{document}
-\title{The \pkg{amsmidx} package}
-\author{American Mathematical Society\\Barbara Beeton}
-\date{Version \fileversion, \filedate}
-\hDocInput{amsmidx.dtx}
-\end{document}
-%</driver>
-% \fi
-%
-% \maketitle
-%
-% \MakeShortVerb\|
-%
-% \section{Introduction}
-%
-%    This package provides the facility to produce multiple indexes
-%    with \amslatex/ document classes (particularly \fn{amsbook} and
-%    the AMS author packages for books), superseding the built-in
-%    index facility which can accommodate only one index.  This may
-%    in the future be incorporated as an option into the \amslatex/
-%    document classes.
-%
-%    This package is based on \pkg{multind.sty} by F.W. Long.
-%
-% \StopEventually{}
-%
-%    Standard file identification.
-%    \begin{macrocode}
-\NeedsTeXFormat{LaTeX2e}[1995/06/01]
-\ProvidesPackage{amsmidx}[2004/08/03 v2.01 multiple indexes for AMS classes]
-%    \end{macrocode}
-%
-% \section{User instructions}
-%
-%    In the preamble, invoke \cn{makeindex} with a file name to provide
-%    as many indexes as desired:
-%\begin{verbatim}
-%    \makeindex{filename-a}
-%    \makeindex{filename-b}
-%\end{verbatim}
-%    This will initiate the creation of \fn{filename-a.idx} etc.
-%
-%    In the body of the text, use the \cn{index} command with two
-%    arguments
-%\begin{verbatim}
-%    \index{filename-a}{index term}
-%\end{verbatim}
-%    as appropriate to populate the \fn{.idx} files.
-%
-%    In the \cn{backmatter} segment of the driver file, insert the
-%    \cn{Printendex} command to print the indexes; the second argument
-%    gives the title to be printed at the top of the index:
-%\begin{verbatim}
-%    \Printindex{filename-a}{First Index}
-%    \Printindex{filename-b}{Second Index}
-%\end{verbatim}
-%
-%    On the first pass, the \fn{.idx} files will be created.  Process
-%    each \fn{.idx} file with \textit{MakeIndex} to generate an \fn{.ind}
-%    file, which will then be read in by \cn{Printindex}.  Whenever any
-%    page references change, be sure to run \textit{MakeIndex} again,
-%    and process the entire job with \latex/ once more to get the correct
-%    page references in the indexes.
-%
-%    To include a paragraph of comments below the index title, insert
-%    the text as an \cn{indexcomment} before the relevant \cn{Printindex}:
-%\begin{verbatim}
-%    \indexcomment{Text of comments}
-%    \Printindex{...}{...}
-%\end{verbatim}
-%    The \cn{indexcomment} text will be cleared after use.
-%
-%
-% \section{Implementation}
-%
-%  \begin{macro}{makeindex}
-%    Redefine \cn{makeindex} to create a new \fn{.idx} file with the
-%    name provided by argument |#1|.
-%    \begin{macrocode}
-\renewcommand{\makeindex}[1]{%
-  \begingroup
-    \makeatletter
-    \if@filesw \expandafter\newwrite\csname #1@idxfile\endcsname
-    \expandafter\immediate\openout \csname #1@idxfile\endcsname #1.idx\relax
-    \typeout{Writing index file #1.idx }\fi
-  \endgroup}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{index}
-%    Redefine \cn{index} to specify into which file/index the term is
-%    to be placed.  Argument |#1| identifies the file, |#2| provides
-%    the text of the term to be indexed.
-%    \begin{macrocode}
-\renewcommand{\index}[1]{%
-  \@bsphack
-  \begingroup
-    \def\protect##1{\string##1\space}\@sanitize\@wrindex{#1}}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{@wrindex}
-%    \cs{@wrindex} checks to make sure that the requested file is available,
-%    and writes an entry into the file or emits an error message.
-%    \begin{macrocode}
-\renewcommand{\@wrindex}[2]{%
-  \let\thepage\relax
-  \xdef\@gtempa{%
-    \@ifundefined{#1@idxfile}{%
-      \PackageError{\@packagename}{%
-        The requested file, #1@idxfile.idx, does not exist;\MessageBreak
-        index term #2 will not be be written out.%
-      }%
-    }{%
-      \expandafter\write\csname #1@idxfile\endcsname
-        {\string\indexentry{#2}{\thepage}}%
-      }%
-    }%
-  \endgroup\@gtempa
-  \if@nobreak \ifvmode\nobreak\fi\fi
-  \@esphack
-  }
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{printindex}
-%  \begin{macro}{Printindex}
-%    Redefine \cs{printindex} to specify the file to be included; provide
-%    an alternate command \cs{Printindex} that specifies both the file and
-%    the index title to be printed.  Argument |#1| identifies the file,
-%    |#2| provides the title.  Also modify some formatting commands to
-%    improve the appearance of index entries, especially long ones in
-%    the presence of three index levels.
-%    \begin{macrocode}
-\renewcommand{\printindex}[1]{\@input{#1.ind}}
-\newcommand{\Printindex}[2]{%
-  \begingroup
-    \cleardoublepage
-    \def\indexname{#2}%
-    \raggedright
-    \hyphenpenalty=10000
-    \renewcommand{\seename}{see~also}
-    \renewcommand{\subitem}{\par\hangindent 3em\hspace*{1em}}
-    \@input{#1.ind}%
-  \endgroup
-  }
-%    \end{macrocode}
-%  \end{macro}
-%  \end{macro}
-%
-%  \begin{macro}{indexcomment}
-%  \begin{macro}{indexchap}
-%    Format comments in a block somewhat narrower than the full page
-%    width, and redefine \cn{indexchap} to insert the block below the
-%    title, before starting the two-column index.  Clear out
-%    \cs{indexcomment} after use.
-%    \begin{macrocode}
-\newdimen\@indexcommentwidth
-\@indexcommentwidth=\textwidth
-\ifdim\@indexcommentwidth > 26pc
-  \advance\@indexcommentwidth-6pc
-\else
-  \advance\@indexcommentwidth-4pc
-\fi
-\newcommand{\indexcomment}[1]{%
-  \def\theindexcomment{%
-    \vskip\baselineskip
-    \parbox[t]{\@indexcommentwidth}{\normalsize\mdseries#1}%
-    }%
-  }
-\let\theindexcomment\@empty
-\renewcommand{\indexchap}[1]{%
-  \global\topskip 7.5pc\relax
-  \twocolumn[\fontsize{\@xivpt}{18}%
-    \vskip\topskip\vskip-\baselineskip\hbox{}% adjust top space
-    \bfseries\centering #1\par
-    \ifx\theindexcomment\@empty
-    \else \theindexcomment
-      \global\let\theindexcomment\@empty
-    \fi
-    ]%
-  \global\topskip 34\p@
-}
-%    \end{macrocode}
-%  \end{macro}
-%  \end{macro}
-%
-%    The usual \cs{endinput} to ensure that random garbage at the end of
-%    the file doesn't get copied by \fn{docstrip}.
-%    \begin{macrocode}
-\endinput
-%    \end{macrocode}
-%
-% \CheckSum{131}
-% \Finale
diff --git a/Master/texmf-dist/source/latex/amslatex/amsopn.dtx b/Master/texmf-dist/source/latex/amslatex/amsopn.dtx
deleted file mode 100644
index fd60965d788..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/amsopn.dtx
+++ /dev/null
@@ -1,254 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsopn.dtx",
-%%%   version   = "2.01",
-%%%   date      = "1999/12/14",
-%%%   time      = "17:30:59 EST",
-%%%   checksum  = "46904 254 1037 9431",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995, 1999 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Electronic Products and Services,
-%%%                P. O. Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "operator name, amsopn, DeclareMathOperator",
-%%%   supported = "yes",
-%%%   abstract  = "This is a \LaTeX{} package that provides a
-%%%                DeclareMathOperator command for defining named
-%%%                operators like sin and lim.",
-%%%   docstring = "The checksum field above contains a CRC-16 checksum
-%%%                as the first value, followed by the equivalent of
-%%%                the standard UNIX wc (word count) utility output of
-%%%                lines, words, and characters.  This is produced by
-%%%                Robert Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-%
-%\iffalse
-%<*driver>
-\documentclass{amsdtx}
-\begin{document}
-\title{The \pkg{amsopn} package}
-\author{Michael Downes}
-\date{Version \fileversion, \filedate}
-\hDocInput{amsopn.dtx}
-\end{document}
-%</driver>
-%\fi
-%
-% \maketitle
-%
-% \MakeShortVerb\|
-%
-% \section{Introduction}
-%
-%    The \pkg{amsopn} package provides a command
-%    \cn{DeclareMathOperator} for defining new `math operator names'
-%    similar to the standard function names \cn{sin}, \cn{lim},
-%    \cn{max}, etc.
-%
-% \StopEventually{}
-%
-%    Standard file identification.
-%    \begin{macrocode}
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1994/12/01]% LaTeX date must December 1994 or later
-\ProvidesPackage{amsopn}[1999/12/14 v2.01 operator names]
-%    \end{macrocode}
-%
-%    What \cs{nolimits@} does is keep a \cn{limits} typed by the user
-%    from having any effect. This is used for operatornames whose
-%    standard usage is never to have limits.
-%    \begin{macrocode}
-\def\nolimits@{\@ifnextchar\limits{\nolimits\@gobble}{\nolimits}}
-%    \end{macrocode}
-%
-%    In operator names, it is sometimes desired to have text-mode
-%    punctuation characters such as |*-/:'|.
-%    Because the body of an
-%    operator name is set in math mode, these few punctuation
-%    characters will not come out right (wrong symbol/and or wrong
-%    spacing). The purpose of \cs{newmcodes@} is to make them act like
-%    their normal text versions.
-%
-%    Where practical, we use decimal numbers to cut down main mem
-%    usage (\qc{\"} not needed).
-%    \begin{macrocode}
-\begingroup \catcode`\"=12
-\gdef\newmcodes@{\mathcode`\'39\mathcode`\*42\mathcode`\."613A%
-%    \end{macrocode}
-%    Define \cs{std@minus} for \cs{relbar} use; otherwise there are
-%    problems with arrows constructed with relbar.
-%    \begin{macrocode}
-  \ifnum\mathcode`\-=45 \else
-    \mathchardef\std@minus\mathcode`\-\relax
-  \fi
-  \mathcode`\-45\mathcode`\/47\mathcode`\:"603A\relax}
-\endgroup
-%    \end{macrocode}
-%
-%    The command \cs{operatorname} prints its argument as a `math
-%    operator' like \cs{sin} or \cs{det}, with proper font and spacing.
-%    \begin{macrocode}
-\DeclareRobustCommand{\operatorname}{%
-  \@ifstar{\qopname\newmcodes@ m}%
-          {\qopname\newmcodes@ o}}%
-%    \end{macrocode}
-%    In the interior of the \cs{mathop} we need a null object (we choose
-%    a zero kern for minimum waste of main mem) in order to guard
-%    against the case where \arg{3} is a single letter; \tex/ will seize
-%    it and center it on the math axis if there is nothing else inside
-%    the \cs{mathop} atom.
-%    \begin{macrocode}
-\DeclareRobustCommand{\qopname}[3]{%
-  \mathop{#1\kern\z@\operator@font#3}%
-  \csname n#2limits@\endcsname}
-%    \end{macrocode}
-%
-%  \begin{macro}{\DeclareMathOperator}
-%    The command \cn{DeclareMathOperator} defines the first argument to
-%    be an operator name whose text is the second argument. The star
-%    form means that the operator name should take limits (like \cn{max}
-%    or \cn{lim}).
-%    \begin{macrocode}
-\newcommand{\DeclareMathOperator}{%
-  \@ifstar{\@declmathop m}{\@declmathop o}}
-%    \end{macrocode}
-%  \end{macro}
-%
-%    In the basic set of operator names (below) we did not use
-%    \cn{DeclareRobustCommand} because of the hash table cost. But we
-%    use it here to minimize the chances of trouble, since we are
-%    producing a user-defined command.
-%    \begin{macrocode}
-\long\def\@declmathop#1#2#3{%
-  \@ifdefinable{#2}{%
-    \DeclareRobustCommand{#2}{\qopname\newmcodes@#1{#3}}}}
-%
-\@onlypreamble\DeclareMathOperator
-\@onlypreamble\@declmathop
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\arccos{\qopname\relax o{arccos}}
-\def\arcsin{\qopname\relax o{arcsin}}
-\def\arctan{\qopname\relax o{arctan}}
-\def\arg{\qopname\relax o{arg}}
-\def\cos{\qopname\relax o{cos}}
-\def\cosh{\qopname\relax o{cosh}}
-\def\cot{\qopname\relax o{cot}}
-\def\coth{\qopname\relax o{coth}}
-\def\csc{\qopname\relax o{csc}}
-\def\deg{\qopname\relax o{deg}}
-\def\det{\qopname\relax m{det}}
-\def\dim{\qopname\relax o{dim}}
-\def\exp{\qopname\relax o{exp}}
-\def\gcd{\qopname\relax m{gcd}}
-\def\hom{\qopname\relax o{hom}}
-\def\inf{\qopname\relax m{inf}}
-\def\injlim{\qopname\relax m{inj\,lim}}
-\def\ker{\qopname\relax o{ker}}
-\def\lg{\qopname\relax o{lg}}
-\def\lim{\qopname\relax m{lim}}
-\def\liminf{\qopname\relax m{lim\,inf}}
-\def\limsup{\qopname\relax m{lim\,sup}}
-\def\ln{\qopname\relax o{ln}}
-\def\log{\qopname\relax o{log}}
-\def\max{\qopname\relax m{max}}
-\def\min{\qopname\relax m{min}}
-\def\Pr{\qopname\relax m{Pr}}
-\def\projlim{\qopname\relax m{proj\,lim}}
-\def\sec{\qopname\relax o{sec}}
-\def\sin{\qopname\relax o{sin}}
-\def\sinh{\qopname\relax o{sinh}}
-\def\sup{\qopname\relax m{sup}}
-\def\tan{\qopname\relax o{tan}}
-\def\tanh{\qopname\relax o{tanh}}
-%    \end{macrocode}
-%
-% \begin{macro}{\operator@font}
-% \begin{macro}{\operatorfont}
-%    This command is provided to allow the document styles to decide in
-%    which way math operators like `max' or `log' are typeset. The
-%    default is to set them in \meta{math group} zero of the current
-%    math version. The original name was \cs{operator@font}, retained
-%    for compatibility; the second name was added to make it
-%    more accessible so that users can call this font for use in special
-%    constructs that are not ordinary operator names but conceptually
-%    related.
-%    \begin{macrocode}
-\def\operator@font{\mathgroup\symoperators}
-\def\operatorfont{\operator@font}
-%    \end{macrocode}
-% \end{macro}
-% \end{macro}
-%
-%    For backwards compatibility we keep this old command name for the
-%    time being:
-%    \begin{macrocode}
-\def\operatornamewithlimits{\operatorname*}
-%    \end{macrocode}
-%
-%    These macros use \cs{mathpalette}s so that they will change size
-%    in script and scriptscript styles, though it's hard to imagine they
-%    will ever be used there (the arrows, particularly, look bad in
-%    subscript sizes). Notice that the use of \cs{ex@} means that the
-%    vertical spacing may not be optimal in script and scriptscript
-%    sizes. Unfortunately \tex/ provides no easy way to do math mode
-%    vertical spacing that varies with current math style like mu units.
-%    \begin{macrocode}
-\def\varlim@#1#2{%
-  \vtop{\m@th\ialign{##\cr
-    \hfil$#1\operator@font lim$\hfil\cr
-    \noalign{\nointerlineskip\kern1.5\ex@}#2\cr
-    \noalign{\nointerlineskip\kern-\ex@}\cr}}%
-}
-\def\varinjlim{%
-  \mathop{\mathpalette\varlim@{\rightarrowfill@\textstyle}}\nmlimits@
-}
-\def\varprojlim{%
-  \mathop{\mathpalette\varlim@{\leftarrowfill@\textstyle}}\nmlimits@
-}
-\def\varliminf{\mathop{\mathpalette\varliminf@{}}\nmlimits@}
-\def\varliminf@#1{\@@underline{\vrule\@depth.2\ex@\@width\z@
-   \hbox{$#1\m@th\operator@font lim$}}}
-\def\varlimsup{\mathop{\mathpalette\varlimsup@{}}\nmlimits@}
-\def\varlimsup@#1{\@@overline{\hbox{$#1\m@th\operator@font lim$}}}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\let\nmlimits@\displaylimits
-\DeclareOption{namelimits}{\let\nmlimits@\displaylimits}
-\DeclareOption{nonamelimits}{\let\nmlimits@\nolimits}
-\ProcessOptions\relax
-%    \end{macrocode}
-%
-%    If we don't load the \pkg{amsgen} package then the use of \cs{ex@}
-%    in \cs{varlim@} will lead to trouble.
-%    \begin{macrocode}
-\RequirePackage{amsgen}\relax
-%    \end{macrocode}
-%
-%    The usual \cs{endinput} to ensure that random garbage at the end of
-%    the file doesn't get copied by \fn{docstrip}.
-%    \begin{macrocode}
-\endinput
-%    \end{macrocode}
-%
-% \changes{v1.2a}{1995/02/20}{Fixed operatorname
-%   (shouldn't have same limits behavior as operatorname*)}
-% \CheckSum{300}
-% \Finale
diff --git a/Master/texmf-dist/source/latex/amslatex/amsrefs.dtx b/Master/texmf-dist/source/latex/amslatex/amsrefs.dtx
deleted file mode 100644
index e8d81ed6336..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/amsrefs.dtx
+++ /dev/null
@@ -1,8030 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-doc-source-file{
-%%%   filename  = "amsrefs.dtx",
-%%%   version   = "2.0",
-%%%   date      = "2004/06/30",
-%%%   time      = "11:24:39 EDT",
-%%%   author    = "Michael J Downes and David M. Jones",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support@ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "A LaTeX package that permits bibliography style
-%%%                to be controlled completely from the LaTeX side
-%%%                instead of being determined chiefly by the BibTeX
-%%%                style file.",
-%%%   checksum  = "09127 8030 25325 242081",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-%%%
-% \iffalse
-%<*driver>
-\NeedsTeXFormat{LaTeX2e}
-\documentclass[draft,oneside]{amsdtx}
-
-\setcounter{secnumdepth}{3}
-\setcounter{tocdepth}{3}
-
-\DoNotIndex{\bib,\BibSpec,\@apply,\citesel,\cite@cj,\cite}
-\DoNotIndex{\IfOption,\add@toks@,\@emptytoks,\@temptokenb}
-
-\makeatletter
-\DeclareRobustCommand{\fld}{\category@index{field}}
-\DeclareRobustCommand{\btype}{\category@index{entry type}}
-\DeclareRobustCommand{\attr}{\category@index{attribute}}
-\makeatother
-
-%\OnlyDescription
-
-\usepackage{amsrefs}
-\usepackage{multicol}
-
-\providecommand{\lat}[1]{\protect\LaTeX{}}
-
-\DeclareTextSymbol{\lbracechar}{OT1}{123}
-\DeclareTextSymbolDefault{\lbracechar}{OT1}
-\DeclareTextSymbol{\rbracechar}{OT1}{125}
-\DeclareTextSymbolDefault{\rbracechar}{OT1}
-
-\newcommand{\rdag}{{\normalfont\dag}}
-
-\providecommand{\embrace}[1]{%
-  \begingroup \ntt\lbracechar#1\rbracechar\endgroup}
-
-% One mandatory argument: cnm; two: cnmm; one optional and one
-%    mandatory: cnom; throwing in a star: cnsom; and so on.
-\providecommand{\cnbreak}{\penalty999\hskip0pt\relax}
-\providecommand{\cnm}[2]{\cn{#1}\cnbreak\embrace{#2}}
-\providecommand{\cnmm}[3]{\cn{#1}\cnbreak\embrace{#2}\cnbreak\embrace{#3}}
-\providecommand{\cnom}[1]{\cn{#1}\cnbreak\ommitude}
-\providecommand{\ommitude}[2][]{{\ntt[#1]}\cnbreak\embrace{#2}}
-\providecommand{\cnmsm}[4]{%
-  \cn{#1}\cnbreak\embrace{#2}\cnbreak *\embrace{#4}}
-
-\newcommand{\rpack}[1]{\pkg{amsrefs} package}
-
-\newcommand{\MacroArgs}{%
-    \par
-    \medskip \noindent\emph{Arguments}: \par}
-
-\newcommand{\macroarg}[2]{
-    \texttt{\arg{#1} <- }\emph{#2}\unkern\texttt{.}\par}
-
-\newenvironment{bug}{%
-    \quote
-        \emph{Known bug:}}
-    {\endquote}
-
-% non-stupid hline: support for adding some space below
-\newcommand{\nshline}{\hline\omit\\}
-
-\newcommand{\SeveralOptions}[1]{%
-  \vbox{\def\\{\unskip,\egroup\hbox\bgroup\ignorespaces}%
-    \hbox{\strut#1}}}
-
-% Make this a self-contained document without separate .bbl file.
-\newcommand{\PrintBibliography}{%
-  \begin{bibsection}\begin{biblist}\raggedright
-  \bib{Jones2004}{article}{
-    author={Jones, David M.},
-    title={User's Guide to the \pkg{amsrefs} Package},
-    note={distributed with the \pkg{amsrefs} code}
-  }
-  \bib{SOS99}{book}{
-    author={Swanson, Ellen},
-    author={O'Sean, Arlene},
-    author={Schleyer, Antoinette},
-    title={Mathematics into Type},
-    edition={updated},
-    year={1999},
-    publisher={American Mathematical Society},
-  }
-  \end{biblist}\end{bibsection}
-}
-
-\makeatletter
-
-\def\nametest#1{%
-    \par
-    \begingroup
-        \let\EmptyNameWarning\relax
-        \vdef\@tempa{#1}%
-        {\tt author=\embrace\@tempa}:
-        \name@split#1,,,\@nil
-        G=\@showname{given}
-        S=\@showname{surname}
-        J=\@showname{jr}%
-    \endgroup
-}
-
-\def\@showname#1{%
-    {\ntt\lbracechar}%
-    {\tt\@xp\macrotext\csname bib'#1\endcsname}%
-    {\ntt\rbracechar}
-}
-
-\def\initialtest#1{%
-    \par
-    \begingroup
-        \vdef\@tempa{#1}%
-        {\tt author=\embrace\@tempa}:
-        \name@split#1,,,\@nil
-        I={\ntt\lbracechar}\csname bib'initials\endcsname{\ntt\rbracechar}%
-    \endgroup
-}
-
-\makeatother
-
-\CodelineIndex
-
-\begin{document}
-\title{The \pkg{amsrefs} package}
-\author{Michael Downes and David M. Jones\\American Mathematical Society}
-\date{Version \fileversion, \filedate}
-\hDocInput{amsrefs.dtx}
-\PrintIndex
-\end{document}
-%</driver>
-% \fi
-%
-% \MakeShortVerb{\|}
-%
-% \maketitle
-%
-%   \tableofcontents
-%
-% \section{Introduction}
-%
-%    The \rpack/ is a \lat/ package for bibliographies that provides an
-%    archival data format similar to the format of \bibtex/ database
-%    files, but adapted to make direct processing by \lat/ easier. The
-%    package can be used either in conjunction with \bibtex/ or as a
-%    replacement for \bibtex/.
-%
-%    This document is written for anyone who wants to implement a new
-%    bibliography style for \pkg{amsrefs} or who is just curious about
-%    how the package is implemented.
-%    The reader should be familiar with the contents of the ``User's
-%    Guide to the \pkg{amsrefs} Package''~\cite{Jones2004}
-%    (\fn{amsrdoc.tex}).
-%
-%    For the publisher or implementor, the chief advantages of the
-%    \rpack/ are as follows:
-%    \begin{description}
-%
-%    \item[Preservation of structure]
-%
-%    The internal structural information of the bibliography entries is not
-%    lost when they are imported from the database file into the \lat/
-%    document. This takes on its greatest significance when archiving
-%    documents in \lat/ form or transmitting them to another user (such as a
-%    publisher).
-%
-%    \item[Deferred formatting]
-%
-%    This means that the style of the bibliography can be readily changed
-%    without reimporting everything from the original database(s).
-%
-%    \item[Setup requires only \lat/ knowledge]
-%
-%    All bibliography setup can be done in \lat/; learning another
-%    programming language (such as the one used in \bibtex/ \fn{bst}
-%    files) is unnecessary.
-%
-%    \end{description}
-%
-% \section{Package options}
-%
-%    In addition to the options documented in the user's guide, there
-%    are a few additional options that were omitted either because
-%    they are obsolete or deprecated options included only for
-%    backwards compatability or because they are still considered
-%    experimental and not yet ready for widespread use.
-%
-%    \begin{description}
-%
-%    \item[?]
-%
-%    Informational option. This causes \pkg{amsrefs} to
-%    display a pointer to the User's Guide on the terminal an in the
-%    log file.  (In previous versions, it displayed much more
-%    material, including a summary of package options.)
-%
-%    \item[traditional-quotes, logical-quotes]
-%
-%    With the \textit{traditional quotes} option
-%    (default), quotation marks produced by \cn{bibquotes}
-%    (\secref{misc-cmds}) fall outside of other punctuation, ``like
-%    this,'' whereas with the \textit{logical quotes} option the order
-%    is reversed, ``like this''.
-%
-%    \item[beta, jpa]
-%
-%    Obsolete; these applied only to the beta version of the
-%    \pkg{amsrefs} package.
-%
-% \end{description}
-%
-% \section{More about the \cn{bib} command}\label{bib-command}
-%
-% \subsection{Field names for the \cn{bib} command}
-%
-%    In addition to the fields discussed in the user's guide, the
-%    following fields are used internally:
-%    \begin{description}
-%
-%   \item[fulljournal]
-%
-%    Used internally by \cn{DefineJournal}.
-%
-%    \item[name]
-%
-%    Used internally by the \btype{name} bibliography type and
-%    \cn{DefineName}.
-%
-%    \item[transition]
-%
-%    A dummy field used inside \cs{BibSpec}s when we want to force an
-%    action unconditionally.
-%
-%    \end{description}
-%
-%    The following fields are included for backwards compatibility:
-%    \begin{description}
-%
-%    \item[institution, school]
-%
-%    These are provided as aliases for \fld{organization} for
-%    compatibility with \BibTeX.
-%
-%    \item[place]
-%
-%    A synonym for \fld{address}.  In earlier versions of
-%    \pkg{amsrefs}, \fld{place} was preferred and \fld{address} was
-%    considered as an alias for \fld{place}.  However, this seemed
-%    like a gratuitous incompatibility with \BibTeX\ to me, so I have
-%    reinstated \fld{address} as the primary field and \fld{place} is
-%    now an undocumented alias.
-%
-%    \end{description}
-%
-%    The following fields are reserved for future use:
-%    \begin{description}
-%
-%    \item[doi] Digital Object Identifier
-%
-%    \item[setup]
-%
-%    This is a special field that can be used to give arbitrary
-%    commands to be executed at the beginning of the current \cn{bib}
-%    entry, after all the fields have been read. The idea is that one
-%    can alter the formatting of an individual entry through this
-%    field, to handle special cases.
-%
-%    This is fully implemented, but I've been unable to think of any
-%    good examples of its use; so, I've decided to suppress it until
-%    such an example comes to light.
-%
-%    \item[url] Universal Resource Locator.
-%
-%    \end{description}
-%
-% \subsection{Bibliography entry types}
-%
-%    The following additional entry types (or, really, pseudo-entry
-%    types) are used internally by \pkg{amsrefs}:
-%    \begin{description}
-%
-%    \item[collection.article]
-%
-%    \item[proceedings.article]
-%
-%    \item[partial]
-%
-%    \item[conference]
-%
-%    \item[innerbook]
-%
-%    \item[name]
-%
-%    \item[nameLE]
-%
-%    \item[nameBE]
-%
-%    \item[nameinverted]
-%
-%    \item[publisher]
-%
-%    \end{description}
-%
-%    The following are currently undocumented aliases for various of
-%    the standard types:
-%    \begin{description}
-%
-%    \item[miscellaneous]
-%
-%    \item[periodical]
-%
-%    \end{description}
-%
-% \section{Customizing the bibliography style}\label{other-styles}
-%
-%    If you use the \rpack/ as is, the bibliography style you get is the
-%    kind of style customarily seen in AMS publications. The recommended
-%    way to get a different bibliography style is to write a \lat/
-%    package which loads the \rpack/ with \cn{RequirePackage} and
-%    then makes the desired changes by using suitable \cn{BibSpec}
-%    commands as explained below. Thus, the general form of the custom
-%    package will be
-%    \begin{verbatim}
-%    \ProvidesPackage{xyzbib}[2002/11/06 v1.28]
-%
-%    \RequirePackage{amsrefs}\relax
-%
-%    \BibSpec{article}{
-%      ...
-%    }
-%
-%    \BibSpec{book}{
-%      ...
-%    }
-%\end{verbatim}
-%
-%    The interior formatting within entries is specified by \cn{BibSpec}
-%    commands, one for each entry type. To illustrate, let's look at an
-%    example style specification for entries of type \btype{article}:
-%    \begin{verbatim}
-%    \BibSpec{article}{%
-%      +{}{\PrintAuthors}  {author}
-%      +{,}{ \textit}      {title}
-%      +{,}{ }             {journal}
-%      +{}{ \textbf}       {volume}
-%      +{}{ \parenthesize} {date}
-%      +{,}{ }             {pages}
-%      +{,}{ }             {note}
-%      +{.}{}              {transition}
-%      +{}{ }              {review}
-%    }
-%\end{verbatim}
-%
-%    It should be pretty obvious that each line specifies the formatting
-%    for a particular field. After reading the data for a particular
-%    \cn{bib} command, \lat/ steps through the style specification and
-%    for each
-%    field listed, prints the field with the given formatting \emph{if
-%    and only if the field has a nonempty value}. The \verb'+' character
-%    at the beginning of each field specification must be followed by three
-%    arguments: the punctuation to be added if the field is nonempty;
-%    space and/or other material to be added after the punctuation; and
-%    the field name. It is permissible for the second part to end with a
-%    command that takes an argument, such as \cn{textbf}, in which case
-%    it will receive the field's value as its argument. By defining a
-%    suitable command and using it here you can place material after the
-%    field contents as well as before; \cn{parenthesize} is an example
-%    of this.
-%
-%    The reason that the punctuation and the following space are specified
-%    separately is that between them there is a crucial boundary for line
-%    breaks. If you put a \cn{linebreak} command at the end of a field value,
-%    the break point will actually be carried onward to a suitable point after
-%    the next bit of punctuation (whose actual value may vary depending on
-%    which of the following fields is the first to turn up with a nonempty
-%    value).
-%
-%    The meaning of the \cn{parenthesize} command, supplied by
-%    \pkg{amsrefs}, should be obvious. The meaning of the \cn{PrintAuthors}
-%    command is a different story. But I don't think it is all that hard to
-%    understand. If we have two or more author names which were given
-%    separately,
-%    and we need to combine them into a conventional name list using commas
-%    and the word \qq{and}, then it would be nice if we had a command which
-%    could take a list of names and Do The Right Thing. And that is just
-%    what \cn{PrintAuthors} is.
-%
-%    The \pkg{rkeyval} package allows keys to be defined as additive: if the
-%    key occurs more than once, each successive value will be concatenated to
-%    the previous value, along with a prefix. The setup done by
-%    \pkg{amsrefs} for the \fld{author} field is
-%    \begin{verbatim}
-%    \DefineAdditiveKey{bib}{author}{\name}
-%\end{verbatim}
-%    This means that if two names are given, as in
-%    \begin{verbatim}
-%    author={Bertram, A.},
-%    author={Wentworth, R.},
-%\end{verbatim}
-%    then the final value of the \fld{author} field seen when \lat/
-%    processes the style specification will be
-%    \begin{verbatim}
-%    \name{Bertram, A.}\name{Wentworth, R.}
-%\end{verbatim}
-%
-%    The \fld{transition} field in our \cn{BibSpec} example is a dummy
-%    field to be
-%    used when punctuation or other material must be added at a certain point
-%    in the bibliography without regard to the emptiness or non-emptiness of
-%    the fields after it. The \fld{transition} field always tests as non-empty
-%    but has no printed content. So when you use it you always get the
-%    indicated punctuation and space at the indicated point in the list of
-%    fields. If it were the last thing in this \cn{BibSpec} example, it could
-%    serve just to put in the final period that is always wanted. But in AMS
-%    bibliographies, if a \emph{Mathematical Reviews} reference is given, it is
-%    conventionally printed \emph{after} the final period. Using the
-%    \fld{transition} field as shown here ensures that the final period will
-%    be always printed, even when the \fld{review} field is empty.
-%
-% \section{Miscellaneous commands provided by the \pkg{amsrefs}
-%    package}\label{misc-cmds}
-%
-%    Most of the following commands are helper commands for use in
-%    \cn{BibSpec} statements. The others are intended for use in bibliography
-%    data.
-%    \begin{description}
-%
-%    \item[\cn{parenthesize}]\SpecialUsageIndex{\parenthesize}
-%    This command adds parentheses around its
-%      argument. It is useful in \cn{BibSpec} statements because there is no
-%      special provision for adding material after the field value.
-%
-%    \item[\cn{bibquotes}]\SpecialUsageIndex{\bibquotes}
-%    This command is much like \cn{parenthesize} but
-%      it adds quotes around its argument and it has one other important
-%      difference: there are special arrangements to print the closing quote
-%      \emph{after} a following comma or similar punctuation (unless the
-%      \pkg{amsrefs} package is invoked with the \opt{logical-quotes} option,
-%      in which case \cn{bibquotes} puts the closing quote immediately after
-%      the quoted material).
-%
-%    \item[\cn{voltext}]\SpecialUsageIndex{\voltext}
-%    This is used to format volume numbers.  By default, it precedes
-%    the volume number by ``vol.''
-%
-%    \item[\cn{issuetext}]\SpecialUsageIndex{\issuetext}
-%    This is used to format issue numbers.  By default, it precedes
-%    the volume number by ``no.''
-%
-%    \item[\cn{editiontext}]\SpecialUsageIndex{\editiontext}
-%    This command produces ``ed.''\ following an
-%      edition number. See \cn{PrintEdition} for more information.
-%
-%    \item[\cn{DashPages}]\SpecialUsageIndex{\DashPages}
-%    This command is similar in spirit to
-%    \cn{voltext} but more complicated in its implementation. It takes
-%    one argument which is expected to contain one or more page numbers
-%    or a range of page numbers. The argument is printed with a prefix
-%    of \qq{p.} if it seems to be a single page number, otherwise with a
-%    prefix of \qq{pp.}.
-%
-%    \item[\cn{tsup}, \cn{tsub}, \cn{tprime}]\SpecialUsageIndex{\tsup}
-%    \SpecialUsageIndex{\tsub}\SpecialUsageIndex{\prime}
-%    These are for text subscripts
-%      and superscripts, with \cn{tprime} producing a superscript prime
-%      symbol. Unlike the standard \cn{textsuperscript} and
-%      \cn{textsubscript} functions provided by \lat/, these do not use
-%      math mode at all.\footnote{There is one drawback: If you don't
-%      want to get the prime symbol for \cn{tprime} from the \fnt{cmsy}
-%      font, you will need to redefine \cn{tprime} in some suitable
-%      way.}
-%
-%    \item[\cn{nopunct}]\SpecialUsageIndex{\nopunct}
-%    This command causes following punctuation to be omitted if it is
-%    added with the internal function \cs{@addpunct}.
-%
-%    \item[\cn{PrintPrimary}]\SpecialUsageIndex{\PrintPrimary}
-%    This is a relatively complicated function that determines the
-%    ``primary'' contributors for an entry and formats them, or
-%    replaces them by \cn{sameauthors} if appropriate.  It should be
-%    used when an entry type might have editors or translators instead
-%    of authors.  It prefers authors over editors and editors over
-%    translators and generates a warning if there are no primary
-%    contributors.
-%
-%    \item[\cn{PrintAuthors}]\SpecialUsageIndex{\PrintAuthors}
-%    This is used to format the list of authors as the primary
-%    contributors for an entry type.
-%
-%    \item[\cn{PrintEditorsA}]\SpecialUsageIndex{\PrintEditorsA}
-%    This is similar to \cn{PrintAuthors} but adds |(ed.)| or |(eds.)|
-%    following the editors.
-%
-%    \item[\cn{PrintEditorsB}]\SpecialUsageIndex{\PrintEditorsB}
-%    This is similar to \cn{PrintEditorsA} but puts parentheses around
-%    the entire list of editors.  It's used by, for example, the
-%    \btype{article} type to print the editors of a
-%    \btype{proceedings} or \btype{collection}.
-%
-%    \item[\cn{PrintEditorsC}]\SpecialUsageIndex{\PrintEditorsC}
-%    Similar to \cn{PrintEditorsA} but precedes the editors by
-%    |Edited by|.  It's used when the editors should be treated as
-%    subsidiary contributors, rather than the primary contributor.
-%
-%    \item[\cn{PrintTranslatorsA}]\SpecialUsageIndex{\PrintTranslatorsA}
-%    This is similar to \cn{PrintEditorsA} but adds |(trans.)|
-%    following the translators.
-%
-%    \item[\cn{PrintTranslatorsB}]\SpecialUsageIndex{\PrintTranslatorsB}
-%    This is similar to \cn{PrintEditorsB}.  It's not currently used,
-%    but is provided for symmetry.
-%
-%    \item[\cn{PrintTranslatorsC}]\SpecialUsageIndex{\PrintTranslatorsC}
-%    Similar to \cn{PrintEditorsC} but precedes the translators by
-%    |Translated by|.
-%
-%    \item[\cn{sameauthors}]\SpecialUsageIndex{\sameauthors}
-%    This is a function of one argument. If you use
-%      the default set of \cn{BibSpec}s from the \pkg{amsrefs},
-%      \cn{sameauthors} is applied to the author name for a given \cn{bib}
-%      command if it matches exactly the author name of the preceding
-%      \cn{bib} command. Change the definition of \cn{sameauthors} if you
-%      don't want to get a bysame dash.
-%
-%    \item[\cn{bysame}]\SpecialUsageIndex{\bysame}
-%    This is a horizontal rule of length 3~em. The default
-%      definition of \cn{sameauthors} prints \cn{bysame} instead of the
-%      author names.
-%
-%    \item[\cn{Plural}, \cn{SingularPlural}]\SpecialUsageIndex{\Plural}
-%    \SpecialUsageIndex{\SingularPlural}
-%    These are helper functions
-%      that allow you to conditionally
-%      print singular or plural forms such as \verb'(ed.)' or \verb'(eds.)'
-%      depending on the number of names in the current name list.
-%      The definition of \cn{PrintEditorsA} reads, in part,
-%    \begin{verbatim}
-%    ... (ed\Plural{s}.) ...
-%\end{verbatim}
-%
-%    \item[\cn{PrintReviews}]\SpecialUsageIndex{\PrintReviews}
-%    This is similar to \cn{AuthorList} but is used for
-%      printing (possibly multiple) MR numbers given in the \fld{review}
-%      field.
-%
-%    \item[\cn{BibField}]\SpecialUsageIndex{\BibField}
-%    This is for more complicated programming tasks such
-%    as may be necessary for some \cn{BibSpec}s.  It takes one
-%    argument, a field name, and yields the contents of that field for
-%    the current \cn{bib} entry.
-%
-%    \item[\cn{IfEmptyBibField}]\SpecialUsageIndex{\IfEmptyBibField}
-%    If one writes
-%    \begin{verbatim}
-%    \IfEmptyBibField{isbn}{A}{B}
-%\end{verbatim}
-%    then the commands in A will be executed if the \fld{isbn} field is empty,
-%    otherwise the commands in B.
-%
-%    \item[\cn{PrintEdition}]\SpecialUsageIndex{\PrintEdition}
-%    If a bibliography entry has
-%    \begin{verbatim}
-%      edition={2}
-%\end{verbatim}
-%    and the \cn{BibSpec} used \cn{PrintEdition} to handle this field, then the
-%    edition information will be printed as \qq{2nd ed.}\mdash that is, the
-%    number is converted to cardinal form and \qq{ed.} is added (taken from
-%    \cn{editiontext}).
-%
-%    \item[\cn{CardinalNumeric}]\SpecialUsageIndex{\CardinalNumeric}
-%    This provides the conversion to cardinal
-%      number form used by \cn{PrintEdition}.
-%
-%    \item[\cn{PrintDate}, \cn{PrintYear}]\SpecialUsageIndex{\PrintDate}
-%    \SpecialUsageIndex{\PrintYear}
-%    These functions convert a date in
-%      canonical form (ISO 8601) to the form required by the current
-%      bibliography style.  You can get your preferred date form by
-%      redefining these functions or by changing your \cn{BibSpec} statements
-%      to use another function of your own devising. The original definition
-%      of \cn{PrintDate} adds parentheses (as for the year of a journal article
-%      in normal AMS style), whereas the \cn{PrintYear} function simply
-%      prints the year without any additional material (as for a book's year
-%      of publication in normal AMS style).
-%
-%    \item[\cn{mdash}, \cn{ndash}]\SpecialUsageIndex{\mdash}
-%    \SpecialUsageIndex{\ndash}
-%      These are short forms for \cn{textemdash}
-%      and \cn{textendash}, recommended instead of the more usual \verb'---'
-%      and \verb'--' notation. From the \pkg{textcmds} package.
-%
-%    \item[et cetera \dots] [mjd,2002-01-03] See the \fn{.dtx} files for
-%    further possibilities that I have not managed to get properly
-%    documented yet!
-%    \end{description}
-%
-% \StopEventually{\PrintBibliography}
-% \iffalse
-% \clearpage
-% \typeout{@@@ That was the last page of the OnlyDescription}
-% \fi
-%
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% \section{Implementation}
-%
-% \subsection{Overview}
-%
-%    It will be a while yet before we get to any actual code. First we
-%    need to understand what the code needs to accomplish in order to
-%    provide the user interface described above in a way that is as
-%    compatible as possible with existing \lat/ mechanisms.
-%
-% \subsubsection{Normal \lat/ processing of cites}
-%
-% \paragraph{First \lat/ pass}
-%
-%    Various commands are written to the \fn{.aux} file that are
-%    mostly used by \bibtex/.
-% \begin{enumerate}
-% \item A \cnm{cite}{moo} command writes one line to the \fn{.aux} file:
-%    \cnm{citation}{moo}. This indicates to \bibtex/ that it should
-%    include `moo' in the list of cited items to be searched for.
-%    The \cn{cite} command also checks to see if \cs{b@moo} contains
-%    the corresponding citation label, but since this is the first
-%    pass, the label won't be known yet, so \lat/ emits an `Undefined
-%    citation' warning and prints a placeholder (i.e., \textbf{???})
-%    instead of the citation label.
-%
-% \item A \cnm{bibliographystyle}{har} command writes one line to the
-%    \fn{.aux} file: \cnm{bibstyle}{har}. This indicates to \bibtex/ that it
-%    should use \fn{har.bst} to determine the style for sorting and
-%    formatting the bibliography items.
-%
-% \item A \cnm{bibliography}{hij,klm,...} command writes one line to the
-%    \fn{.aux} file: \cnm{bibdata}{hij,klm,...}. This indicates to \bibtex/
-%    that it should look in \fn{hij.bib}, \fn{klm.bib}, \dots\ for
-%    bibliographic data. The \cn{bibliography} also tries to input
-%    the \fn{.bbl} file, but on the first pass it won't exist
-%    yet.
-%
-% \end{enumerate}
-%
-%    On the first pass all \cn{cite}'s normally are reported as
-%    undefined because the \fn{.bbl} file has not yet been created.
-%
-% \paragraph{\bibtex/ pass}
-%
-%    For a document named \fn{xyz.tex}, the command \verb'bibtex xyz' is
-%    used to invoke \bibtex/. It looks in \fn{xyz.aux} to find the
-%    citation information written there by \lat/. For each \cn{citation} line,
-%    \bibtex/ searches for a corresponding entry in the specified
-%    \fn{.bib} files and formats it. The entire list is then sorted in
-%    whatever way dictated by the bibliography style, and written out to
-%    the file \fn{xyz.bbl}. This normally produces entries that look
-%    something like:
-%    \begin{verbatim}
-%    \bibitem{BGL} P. Busch, M. Grabowski and P. J. Lahti:
-%    {\it Operational Quantum Physics.}
-%    Springer Verlag, New York (1995).
-%\end{verbatim}
-%
-% \paragraph{Second \lat/ pass}
-%
-%    Now the \fn{.bbl} file exists and contains some \cn{bibitem}
-%    commands. At \cnm{begin}{document}, \lat/ reads the \fn{.aux} file,
-%    hoping to find some \cn{bibcite} commands, but it will not find
-%    them until the next time around. \cn{citation}, \cn{bibstyle}, and
-%    \cn{bibdata} commands in the \fn{.aux} file are simply ignored by \lat/.
-%    Then \lat/ proceeds to typeset the body of the document.
-% \begin{enumerate}
-% \item Instances of \cn{cite} still print question marks.
-%
-% \item The \cn{bibliography} command causes \lat/ to input \fn{xyz.bbl}
-%    and typeset its contents.
-%
-% \item A \cnm{bibitem}{moo} command writes one line to the
-%    \fn{.aux} file: \cnmm{bibcite}{moo}{9}, where 9 is the current item
-%    number.
-%
-% \item A \cnom{bibitem}[Moody]{moo} command writes one line to the
-%    \fn{.aux} file: \cnmm{bibcite}{moo}{Moody}, using the supplied label
-%    instead of a number.
-%
-% \end{enumerate}
-%
-% \paragraph{Third \lat/ pass}
-%
-%    Now the \fn{.aux} file contains some \cn{bibcite} commands. Once again,
-%    \lat/ reads the \fn{.aux} file when it reaches \cnm{begin}{document}.
-% \begin{enumerate}
-%
-% \item A \cnmm{bibcite}{moo}{Moody} causes \lat/ to define \cs{b@moo}
-%    with `Moody' as the replacement text.
-%
-% \item If two \cn{bibcite} commands have the same citation key, \lat/
-%    gives a warning message. This happens at \cnm{begin}{document},
-%    during the reading of the \fn{.aux} file.
-%
-% \item Instances of \cn{cite} in the body of the document will print
-%    the appropriate labels obtained from the \fn{.aux} file.
-%
-% \item If there are any \cn{cite} commands for which the \fn{.aux} file did
-%    not have a \cn{bibcite} command, \lat/ will give an `Undefined
-%    citation' warning. This often happens if the \fn{.aux} file is incomplete
-%    due to a \TeX{} error on the preceding pass.
-% \end{enumerate}
-%
-% \subsection{How cites are processed by \pkg{amsrefs}}
-%
-%    In order to support its additional features (e.g., author-year
-%    citations and the \opt{backrefs} option), the \rpack/ stores additional
-%    information for each cite in the macro \cs{b@whatever}. Instead of
-%    simply using the defined or undefined status of this macro to
-%    trigger the standard warnings, we add some boolean flags to allow
-%    us to discriminate more finely what the current situation is.
-% \begin{itemize}
-% \item Each time an item is cited in the body of the document, a
-%    \texttt{backref} entry is added to the info of that item. The
-%    \texttt{backref} info
-%    is the current page and section location. Section location is a bit
-%    hard to get right without better support from the document class.
-%    So we provide a hook to allow it to work better when the support is
-%    there.
-%
-% \item When a cite occurs, if the info is undefined then a warning is
-%    issued and the info structure is created. A \cs{citation} command
-%    and a \cs{citedest} command (providing backref info) are written to
-%    the \fn{.aux} file. Because the backref info includes page number, it has
-%    to be a non-immediate write.
-%
-%    An undefined info structure would normally happen only on a first
-%    pass when no \fn{.aux} file exists, or when a new cite is added.
-%    I.e., when the corresponding \cs{citation} command is not yet
-%    present in the \fn{.aux} file.
-%
-% \item When a citation command occurs in the \fn{.aux} file, it initializes
-%    the info structure if necessary, setting the ``bib-info-present''
-%    flag to 0.
-%
-% \item When a \cs{citedest} command occurs in the \fn{.aux} file, it
-%    initializes the info structure if necessary---but this shouldn't
-%    happen: if the corresponding \cs{citation} command did not already
-%    get processed, then something is wrong. So normally, the
-%    \cs{citedest} command merely needs to add its backref info to the
-%    existing info structure.
-%
-% \item When a \cs{bibcite} command occurs in the \fn{.aux} file, it will
-%    normally find that \cs{b@whatever} is already defined, if the
-%    bibliography occurs after all the \cn{cite} commands. What it must
-%    do is fill in the appropriate blank slots in the info structure
-%    set up by a previous \cs{citation} command.
-%
-% \item The \fn{.aux} file is actually processed two times, once at the
-%    beginning of the document and once at the end. In the latter case,
-%    \cs{bibcite} should give a warning if the backref-list is empty,
-%    since that means there were no \cn{cite} commands for the given
-%    key.
-%
-% \item When processing the bibliography: The \cn{bib} command needs to
-%    check if it is using a key that is already used by another \cn{bib}
-%    command.
-% \end{itemize}
-%
-%    We therefore have
-%    \begin{verbatim}
-%    \b@xyz -> \citesel 00{label}{year}{backref-list}
-%\end{verbatim}
-%    where the first~0 is replaced by~1 if there has already been another
-%    citation for the same key earlier in the document (some citation
-%    styles use abbreviated forms for all instances after the first),
-%    and the second~0 is replaced by~1 if the same key was already
-%    used by an earlier \cn{bib} command.
-%
-%    Because the backref-list often includes page number information, it
-%    cannot be built on the fly as we go along; instead we have to write
-%    the information to the \fn{.aux} file and read it in at the beginning of
-%    the next run.
-%
-%    If there was no \cs{bibcite} in the \fn{.aux} file for a given key, then
-%    the info is
-%    \begin{verbatim}
-%    \b@xyz -> \citesel 00{}{}{backref-list}
-%\end{verbatim}
-%    If there was neither \cs{citation} nor \cs{bibcite} in the \fn{.aux} file
-%    for a given key, then the \cn{cite} command should find that
-%    \ncn{b@xyz} is undefined.
-%
-%    If the author-year option is in effect, the \qq{label} contains
-%    the author last names instead of a label:
-%    \begin{verbatim}
-%    \b@xyz -> \citesel 00{\name{Smith}\name{Jones}}{...}{...}
-%\end{verbatim}
-%    Full name information is included in the data because some citation
-%    styles give full names at the first citation and abbreviated forms
-%    for subsequent instances.
-%
-% \subsection{Data structures}
-%
-%    The result of scanning the key/value pairs of a \cn{bib} command is
-%    an assignment statement for \cs{rsk@toks}. (Cf.\@ the \pkg{rkeyval}
-%    package.) For example, consider the entry
-%    \begin{verbatim}
-%    \bib{miller83}{article}{
-%      author={Miller, G.},
-%      title={Eine Bemerkung zur Darstellung von Polynomen \"{u}ber
-%        Verb\"{a}nden}*{language={german}},
-%      journal={J. Math. Sent.},
-%      volume={10},
-%      year={1983},
-%      pages={26\ndash 30},
-%    }
-%\end{verbatim}
-%    The scanned result is to assign
-%    \begin{verbatim}
-%    \global\rsk@toks{%
-%       \set:bib'author{Miller, G.}{}%
-%       \set:bib'title{Eine Bemerkung zur Darstellung von Polynomen
-%           \"{u}ber Verb\"{a}nden}{language={german}}%
-%       \set:bib'journal{J. Math. Sent.}{}%
-%       \set:bib'volume{10}{}%
-%       \set:bib'year{1983}{}%
-%       \set:bib'pages{26\ndash 30}{}%
-%    }
-%\end{verbatim}
-%    The code in the last arg of \cn{RestrictedSetKeys} then invokes
-%    \cs{bib@exec} to do something with the value of \cs{rsk@toks}.
-%    \begin{verbatim}
-%    \bib@exec{miller83}{\the\rsk@toks}{\setbib@article}{}
-%\end{verbatim}
-%
-% \subsection{Preliminaries}
-%
-%    \begin{macrocode}
-%<*pkg>
-%    \end{macrocode}
-%
-%    Standard declaration of package name and date.
-%    \begin{macrocode}
-\NeedsTeXFormat{LaTeX2e}[1995/12/01]
-%    \end{macrocode}
-%
-%    \begin{macro}{\amsrefs@warning@nl}
-%    \begin{macrocode}
-\def\amsrefs@warning@nl{\PackageWarningNoLine{amsrefs}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    Backward handling for beta version.
-%    \begin{macrocode}
-\@ifpackagewith{amsrefs}{beta}{%
-    \amsrefs@warning@nl{The beta option is deprecated^^J%
-    and will be removed in a future release of amsrefs}
-    \expandafter\edef\csname opt@amsrbeta.sty\endcsname
-        {\@ptionlist{amsrefs.sty}}%
-    \def\@currname{amsrbeta}%
-    \expandafter\let\csname amsrbeta.sty-h@@k\endcsname\@empty
-    \def\@tempa{\input{amsrbeta.sty}\endinput}%
-}{%
-    \let\@tempa\@empty
-}
-\@tempa
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\IfFileExists{url.sty}{%
-    \RequirePackage{url}\relax
-    \@gobble
-}{%
-    \@firstofone
-}
-{
-    \DeclareRobustCommand{\url}[1]{%
-        \def\@tempa{#1}%
-        \texttt{\@urlsetup $\expandafter\strip@prefix\meaning\@tempa$}%
-    }%
-    \def\@urlsetup{%
-        \check@mathfonts \textfont\@ne\the\font \textfont\z@\the\font
-        \@apply\@urlfix{\do\+\do\=\do\:\do\-\do\.\do\,\do\;}%
-        \@apply\@urlbreak{\do\&\do\/\do\?}%
-    }%
-    \def\@urlbreak#1{%
-        \mathcode`#1="8000
-        \begingroup \lccode`\~=`#1 \lowercase{\endgroup \edef~}%
-        {\mathchar\number`#1\penalty\hyphenpenalty}%
-    }%
-    \def\@urlfix#1{%
-        \mathcode`#1=`#1\relax
-    }%
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\@ifundefined{NormalCatcodes}{\RequirePackage{pcatcode}\relax}{}
-\PushCatcodes\NormalCatcodes
-\ProvidesPackage{amsrefs}[2004/06/07 v1.71]
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-%% WARNING WARNING WARNING: Catcode of apostrophe ' is letter
-%% throughout this file.
-\catcode`\'=11 % letter
-%    \end{macrocode}
-%
-% \subsection{Utilities}
-%
-%    Some of these useful functions are also found in AMS
-%    document classes.
-%
-%    \begin{macro}{\after@deleting@token}
-%    Similar in concept to \cs{afterassignment}, except it deletes the
-%    next token in the stream before putting its argument
-%    back into the input.  Useful for skipping past tokens during
-%    parsing.
-%    \begin{macrocode}
-\def\after@deleting@token#1{%
-    \afterassignment#1%
-    \let\@let@token= % Don't delete this space!
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@ifempty}
-%    \begin{macro}{\@ifnotempty}
-%    Some frequently used tests for empty arguments.  Note that an
-%    argument consisting entirely of spaces (e.g.,
-%    \verb*|\@ifempty{ }|) counts as empty.
-%    \begin{macrocode}
-\long\def\@ifempty#1{\@xifempty#1@@..\@nil}
-
-\long\def\@xifempty#1#2@#3#4#5\@nil{%
-    \ifx#3#4\@xp\@firstoftwo\else\@xp\@secondoftwo\fi
-}
-
-\long\def\@ifnotempty#1{\@ifempty{#1}{}}
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%
-%    \begin{macro}{\macrotext}
-%    \begin{macrocode}
-\def\macrotext{\expandafter\strip@prefix\meaning}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\vdef}
-%    ``Verbatim'' def.
-%    \begin{macrocode}
-\def\vdef#1#2{%
-    \def#1{#2}%
-    \edef#1{\macrotext#1}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\auto@protect}
-%    Sometimes it's convenient to render a given control sequence
-%    unexpandable for a time.  \cs{auto@protect} provides a way to do
-%    that.\footnote{There really should be a special name for macros
-%    that, like \cs{auto@protect}, take a control sequence as an
-%    argument and redefine that control sequence in order to achieve
-%    some special effect.  Pending happier inspiration, I'm
-%    going to call them ``wrapper'' macros.\index{wrapper macros,
-%    definition}}
-%
-%    An earlier version of this code read simply |\let#1\relax| but
-%    that had the disadvantage of making all \cs{auto@protect}ed
-%    macros compare equal via \cs{ifx}.  This version allows macros to
-%    keep their identities under comparisons.
-%    \begin{macrocode}
-\def\auto@protect#1{\def#1{\@nx#1}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\g@undef}
-%    Globally undefine a control sequence.
-%    \begin{macrocode}
-\def\g@undef#1{\global\let#1\relax}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@concat}
-%    Concatenate onto the end of a token list.  Expands everything.
-%    \begin{macrocode}
-\def\@concat#1#2{\edef#1{#1#2}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\add@toks@}
-%    This saves a few tokens of main memory and a lot of typing.
-%    \begin{macrocode}
-\def\add@toks@{\addto@hook\toks@}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@lappend}
-%    Append an element to a \cs{do}-delimited list.  As long as the
-%    element to be appended (|#2|) is a single token, nothing is
-%    expanded.  If it contains multiple tokens, all tokens after the
-%    first will be expanded.
-%    \begin{macrocode}
-\def\@lappend#1#2{%
-    \begingroup
-        \def\do{\@nx\do\@nx}%
-        \edef\@tempa{\def\@nx#1{#1\do#2}}%
-    \@xp\endgroup
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@apply}
-%    Apply a macro to each element of a \cs{do}-delimited list.
-%    \begin{macrocode}
-\def\@apply#1#2{%
-    \let\do#1%
-    #2%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\get@numberof}
-%    This is a generic macro for counting the number of elements in a
-%    \lat/-style list.
-%    The first argument is a \cs{count} register that will receive the
-%    final count; the second argument is the control sequence that
-%    separates elements of the list, and the third argument is the
-%    list itself.  So, for example,
-%    \begin{verbatim}
-%    \get@numberof\@tempcnta\do\dospecials
-%\end{verbatim}
-%    would count the number of special characters in \cs{dospecials}
-%    and store the number in \cs{@tempcnta}.
-%    \begin{macrocode}
-\def\get@numberof#1#2#3{%
-    \begingroup
-        \def#2{\advance\@tempcnta\@ne \@gobble}%
-        \@tempcnta\z@
-        #3\relax
-        \edef\@tempb{#1=\the\@tempcnta\relax}%
-    \@xp\endgroup
-    \@tempb
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\safe@set}
-%    This is a quick and dirty way of extracting an integer prefix
-%    from a string and assigning it to a counter.  If the string does
-%    not begin with an integer, the counter receives the value~0.  The
-%    suffix after the integer prefix is discarded.  (But bad things
-%    will happen if the string contains the token \cs{@nil}.)
-%    \begin{macrocode}
-\def\safe@set#1#2{%
-    \afterassignment\@nilgobble
-    #1=0#2\relax\@nil
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@chomp}
-%    Vaguely reminiscent of Perl's \texttt{chomp} function, which removes
-%    a substring from the end of a variable, but ours works with
-%    tokens (more-or-less) and takes the substring to be removed as
-%    its second argument.  Note the use of \cs{@empty} to anchor the
-%    chomped substring to the end of the string.  Note also that the
-%    second argument will be fully expanded during the chomping.
-%    \begin{macrocode}
-\def\@chomp#1#2{%
-    \begingroup
-        \toks@\@emptytoks
-        \def\@chomper##1##2#2\@empty##3\@nil{%
-            \ifx\@let@token\bgroup
-                \toks@{{##1}##2}%
-            \else
-                \toks@{##1##2}%
-            \fi
-        }%
-        \@xp\chomp@ #1\@empty#2\@empty\@nil
-        \edef\@tempa{\def\@nx#1\@xp{\the\toks@}}%
-    \@xp\endgroup
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\chomp@}
-%    Before passing control to \cs{@chomper}, we peek ahead at the
-%    next token in the stream.  That way, if the next token is an open
-%    brace, we know we need to surround \cs{@chomper}'s first argument
-%    with braces.  Unfortunately, this might still remove braces from
-%    the second argument, but I think that's ok for our purposes.
-%    \begin{macrocode}
-\def\chomp@{%
-    \futurelet\@let@token
-    \@chomper
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\amsrefs@warning}
-%    \begin{macrocode}
-\def\amsrefs@warning{\PackageWarning{amsrefs}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\amsrefs@error}
-%    \begin{macrocode}
-\def\amsrefs@error{\PackageError{amsrefs}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\MessageBreakNS}
-%    This suppresses the leading space in \cs{on@line} in error and
-%    warning messages.
-%    \begin{macrocode}
-\def\MessageBreakNS{\MessageBreak\romannumeral`\^^@}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@addpunct}
-%    The \cs{@addpunct} function is defined by AMS document classes and
-%    the \pkg{amsgen} package. But if we find it undefined we had better
-%    define it.
-%    \begin{macrocode}
-\@ifundefined{@addpunct}{%
-    \def\@addpunct#1{%
-        \relax\ifhmode
-            \ifnum\spacefactor>\@m \else#1\fi
-        \fi
-    }
-    \def\frenchspacing{%
-        \sfcode`\.1006
-        \sfcode`\?1005
-        \sfcode`\!1004
-        \sfcode`\:1003
-        \sfcode`\;1002
-        \sfcode`\,1001\relax
-    }
-}{}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\nopunct}
-%    Omit any following punctuation that would normally be inserted by
-%    \cs{@addpunct}.
-%    \begin{macrocode}
-\providecommand{\nopunct}{\spacefactor \@nopunctsfcode}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@nopunctsfcode}
-%    \begin{macrocode}
-\def\@nopunctsfcode{1007 }
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsection{Declaring package options}
-%
-%    We call the \pkg{ifoption} package to facilitate some option tests.
-%    \begin{macrocode}
-\RequirePackage{ifoption}[2000/02/15]
-%    \end{macrocode}
-%
-%    The \opt{sorted} option is a no-op and is no longer documented.
-%    I'm only leaving it here for backwards compatibility.
-%    \begin{macrocode}
-\DeclareExclusiveOptions{sorted,citation-order}
-%    \end{macrocode}
-%    The \opt{alphabetic} option corresponds to the standard \bst{alpha}
-%    biblio style with labels like Knu66 (three letters from name plus
-%    two digits of year). Maybe should provide an alias LllYY for this
-%    option. Numeric is the default since it is commoner in AMS
-%    publications.
-%    \begin{macrocode}
-\DeclareExclusiveOptions{alphabetic,shortalphabetic,author-year,numeric}
-%    \end{macrocode}
-%
-%    \begin{option}{y2k}
-%    \begin{macrocode}
-\DeclareBooleanOption{y2k}
-%    \end{macrocode}
-%    \end{option}
-%
-%    \begin{option}{nobysame}
-%    \begin{macrocode}
-\DeclareBooleanOption{nobysame}
-%    \end{macrocode}
-%    \end{option}
-%
-%    The standard \bst{abbrv} bibliography style uses abbreviations for
-%    month names and journal names, and first names of people are
-%    abbreviated to their initials. Since the second test bibliography
-%    that I tested with had unabbreviated month names but abbreviated
-%    journal names, perhaps it is a good idea to let these choices be
-%    specified separately.
-%    \begin{macrocode}
-\DeclareBooleanOption{short-journals}
-%    \end{macrocode}
-%    \begin{macrocode}
-\DeclareBooleanOption{short-publishers}
-%    \end{macrocode}
-%    The \opt{short-journals} and \opt{short-publishers} options only
-%    affect journal and publisher names that are defined with
-%    \cn{DefineJournal} and \cn{DefinePublisher} commands.
-%    \begin{macrocode}
-\DeclareBooleanOption{short-months}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\DeclareBooleanOption{initials}
-%    \end{macrocode}
-%    Nevertheless, it's to be expected that the preceding four options
-%    would typically be used together, so we provide a short-hand for
-%    requesting them all.
-%    \begin{macrocode}
-\DeclareOption{abbrev}{%
-    \@pass@ptions
-        \@currext
-        {initials,short-months,short-journals,short-publishers}%
-        \@currname
-}
-%    \end{macrocode}
-%
-%    In the bibliography, if a title or something is enclosed in quotes,
-%    should the closing quotes go inside the punctuation (logical
-%    position) rather than outside (traditional)? These options give you
-%    a choice.
-%    \begin{macrocode}
-\DeclareExclusiveOptions{traditional-quotes,logical-quotes}
-%    \end{macrocode}
-%
-%    A sequence of cites will be sorted and ranges of length three or
-%    greater will be compressed if these options so indicate.  Note
-%    that the \opt{non-sorted-cites} option automatically disables
-%    compression.  This is probably a feature.
-%    \begin{macrocode}
-\DeclareExclusiveOptions{sorted-cites,non-sorted-cites}
-\DeclareExclusiveOptions{non-compressed-cites,compressed-cites}
-%    \end{macrocode}
-%
-%    In the bibliography, print page numbers showing where each
-%    entry was cited.
-%    \begin{macrocode}
-\DeclareBooleanOption{backrefs}
-%    \end{macrocode}
-%
-%    Option for giving information about the available options:
-%    \begin{macrocode}
-\DeclareBooleanOption{?}
-%    \end{macrocode}
-%
-%    This option means to forgo loading of the \pkg{textcmds} and
-%    \pkg{mathscinet} packages.
-%    \begin{macrocode}
-\DeclareBooleanOption{lite}
-%    \end{macrocode}
-%
-%    This option can be used by later releases as a sign that fall-back
-%    adaptations need to be done.
-%    \begin{macrocode}
-\DeclareBooleanOption{beta}
-%    \end{macrocode}
-%
-%    This one is obsolete now.
-%    \begin{macrocode}
-\DeclareBooleanOption{jpa}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\DeclareBooleanOption{bibtex-style}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\ExecuteOptions{numeric,traditional-quotes,sorted-cites,compressed-cites}
-
-\ProcessOptions\relax
-
-\ProcessExclusiveOptions
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\IfOption{backrefs}{%
-    \IfFileExists{hyperref.sty}{%
-        \RequirePackage{hyperref}[1999/07/08]
-    }{}%
-    \IfFileExists{backref.sty}{%
-        \RequirePackage{backref}[1999/05/30]
-    }{}%
-}{}
-%    \end{macrocode}
-%
-% \subsubsection{The \opt{?} option}
-%
-%    Note that in the following auxiliary package list, \pkg{getwidth}
-%    is not (yet) included.
-%    \begin{macrocode}
-\IfOption{?}{%
-    \typeout{^^J%
-        Documentation for the amsrefs package is found in amsrdoc.dvi^^J%
-        (or .pdf or .tex).
-        ^^J%
-    }%
-}{}%
-%    \end{macrocode}
-%
-% \subsection{Loading auxiliary packages}
-%    Now, if these other packages make use of the \pkg{pcatcode} package
-%    like they should, then we don't need to make any fuss here about
-%    the special catcode of \texttt{'}. Just load the packages.
-%    \begin{macrocode}
-\RequirePackage{rkeyval}[2001/12/22]
-%    \end{macrocode}
-%
-% \subsubsection{The \opt{lite} option}
-%
-%    In my opinion, this is misguided, since \pkg{amsrefs} shouldn't
-%    be loading these packages to begin with.  But it's too late to
-%    change it now.
-%
-%    \begin{macrocode}
-\IfOption{lite}{% True? Then don't load the next two packages.
-}{%              False? OK, let's load them:
-    \RequirePackage{textcmds}[2001/12/14]
-    \RequirePackage{mathscinet}[2002/01/01]
-}
-%    \end{macrocode}
-%
-% \subsection{Key-value setup}
-%
-%    \begin{macro}{\BibField}
-%    This provides easy access to individual fields for user-defined
-%    formatting functions.
-%    \begin{macrocode}
-\newcommand{\BibField}[1]{\csname bib'#1\endcsname}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\IfEmptyBibField}
-%    A convenient partial application of \cn{rkvIfEmpty}.
-%    \begin{macrocode}
-\newcommand{\IfEmptyBibField}{\rkvIfEmpty{bib}}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsubsection{Standard field names (the \texttt{bib} group)}
-%
-%    And here are the predefined key names. You could always add some
-%    more if you needed them. Only worry is about compatibility if you
-%    want to share your data with other people.
-%
-%    \begin{macro}{\fld@elt}
-%    \begin{macro}{\name}
-%    We want the list macros used above to be unexpandable except when
-%    special processing is done.  (It's not clear to me there's any
-%    real benefit to using these instead of just using \cn{do}.---dmj)
-%    \begin{macrocode}
-\let\fld@elt=?
-\let\name=?
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%
-%    First the fields that could be repeated more than once in a single
-%    entry. Maybe publisher should be allowed to repeat also, for
-%    co-published works. But then need to worry about the address
-%    handling.
-%    \begin{macrocode}
-\DefineAdditiveKey{bib}{author}{\name}
-\DefineAdditiveKey{bib}{editor}{\name}
-\DefineAdditiveKey{bib}{translator}{\name}
-\DefineAdditiveKey{bib}{contribution}{\fld@elt}
-\DefineAdditiveKey{bib}{isbn}{\fld@elt}
-\DefineAdditiveKey{bib}{issn}{\fld@elt}
-\DefineAdditiveKey{bib}{review}{\fld@elt}
-\DefineAdditiveKey{bib}{partial}{\fld@elt}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\DefineSimpleKey{bib}{address}
-\DefineSimpleKey{bib}{book}
-\DefineSimpleKey{bib}{booktitle}
-\DefineSimpleKey{bib}{conference}
-%\DefineSimpleKey{bib}{contributor}
-\DefineSimpleKey{bib}{copula}
-\DefineSimpleKey{bib}{date}
-\DefineSimpleKey{bib}{doi}
-\DefineSimpleKey{bib}{edition}
-\DefineSimpleKey{bib}{eprint}
-\DefineSimpleKey{bib}{fulljournal}
-\DefineSimpleKey{bib}{hyphenation}
-\DefineSimpleKey{bib}{institution}
-\DefineSimpleKey{bib}{journal}
-\DefineSimpleKey{bib}{label}
-\DefineSimpleKey{bib}{language}
-\DefineSimpleKey{bib}{name}
-\DefineSimpleKey{bib}{note}
-\DefineSimpleKey{bib}{number}
-\DefineSimpleKey{bib}{organization}
-\DefineSimpleKey{bib}{pages}
-\DefineSimpleKey{bib}{part}
-\DefineSimpleKey{bib}{place}
-\DefineSimpleKey{bib}{publisher}
-\DefineSimpleKey{bib}{reprint}
-\DefineSimpleKey{bib}{school}
-\DefineSimpleKey{bib}{series}
-\DefineSimpleKey{bib}{setup}
-\DefineSimpleKey{bib}{status}
-\DefineSimpleKey{bib}{subtitle}
-\DefineSimpleKey{bib}{title}
-\DefineSimpleKey{bib}{translation}
-\DefineSimpleKey{bib}{type}
-\DefineSimpleKey{bib}{url}
-\DefineSimpleKey{bib}{volume}
-\DefineSimpleKey{bib}{xref}
-\DefineSimpleKey{bib}{year}
-%    \end{macrocode}
-%    The \fld{transition} key is used when we want to insert punctuation
-%    or other material at a given point in the sequence
-%    unconditionally. The key appears to have a non-empty value to
-%    \cn{IfEmptyBibField}, but its value (expansion) is empty.
-%    \begin{macrocode}
-\DefineDummyKey{bib}{transition}
-%    \end{macrocode}
-%
-% \subsubsection{Auxiliary properties (the \texttt{prop} group)}
-%
-%    \begin{macrocode}
-\DefineSimpleKey{prop}{inverted}
-\DefineSimpleKey{prop}{language}
-%    \end{macrocode}
-%
-% \subsection{Bibliography type specifications}
-%
-%    \begin{macro}{\BibSpec}
-%    Accumulate specification material in \cs{toks@}, then define
-%    \cs{setbib@TYPE} from it.
-%    \begin{macrocode}
-\newcommand{\BibSpec}[2]{%
-    \toks@\@emptytoks
-    \@ifnotempty{#2}{%
-%    \end{macrocode}
-%    The \cs{@ifnextchar} removes an optional |+| at the beginning of
-%    a specification.  From then on, each time \cs{bibspec@scan} is
-%    invoked, it expects to find four arguments.  The four
-%    \cs{@empty}s appended to the specification (|#2|) below ensure
-%    that this is so.
-%    \begin{macrocode}
-        \@ifnextchar{+}{\@xp\bibspec@scan\@gobble}{\bibspec@scan}%
-        #2\@empty\@empty\@empty\@empty
-    }%
-    \@xp\edef\csname setbib@#1\endcsname{\the\toks@}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bibspec@scan}
-%    The \cs{bibspec@scan} function scans one field specification
-%    from the second arg of \cn{BibSpec}. Each field specification has
-%    the form
-%    \begin{verbatim}
-%    +{punctuation}{prelim material}{field name}
-%\end{verbatim}
-%    Note however that because the initial |+| is stripped off by
-%    \cs{BibSpec} (see above), the actual order that \cs{bibspec@scan}
-%    reads the field specification is
-%    \begin{verbatim}
-%    #1={punctuation} #2={prelim material} #3={field name} #4=+
-%\end{verbatim}
-%    where the fourth argument is actually expected to be either the
-%    |+| from the following specification, or one of the special
-%    \cs{@empty} tokens inserted by \cs{BibSpec}.  If it is neither of
-%    these special values, it means we have a malformed specification;
-%    so, we issue an error and then try to pick up where we left off.
-%    \begin{macrocode}
-\def\bibspec@scan#1#2#3#4{%
-    \add@toks@{\bib@append{#1}{#2}}%
-    \edef\@tempa{%
-        \toks@{\the\toks@ \@xp\@nx\csname bib'#3\endcsname}%
-    }%
-    \@tempa
-    \ifx\@empty#4%
-        \@xp\@gobble % end the recursion
-    \else
-        \ifx +#4\else\bibspec@scan@error\fi
-    \fi
-    \bibspec@scan
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bibspec@scan@error}
-%    \begin{macrocode}
-\def\bibspec@scan@error{\amsrefs@error{Bad BibSpec: Expected '+'}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bib@append}
-%    The function \cs{bib@append} prints the value of a field, together
-%    with associated punctuation and font changes, unless the value is
-%    empty. Arg 1 is punctuation (that may need to be swapped with a
-%    preceding line break), arg 2 gives the space to be added after the
-%    punctuation, and possibly a function to be applied to the contents
-%    of arg 3, which is
-%    a macro containing the field
-%    value. So if we have \cn{moo} and \cn{bib'pages}, from
-%    \verb'pages={21\ndash 44}', then we want to arrange to call
-%    \begin{verbatim}
-%    \moo{21\ndash 44}
-%\end{verbatim}
-%    We don't want to simply call \cs{moo}\cs{bib'bar} because that makes
-%    it rather difficult for \cs{moo} to look at the contents of
-%    \cs{bib@bar}.
-%    \begin{macrocode}
-\def\bib@append#1#2#3{%
-    \ifx\@empty#3%
-    \else
-%    \end{macrocode}
-%    \begin{bug}
-%    Need better error message here.
-%    \end{bug}
-%    \begin{macrocode}
-        \ifx\relax#3%
-            \errmessage{#3=\relax}%
-        \else
-            \begingroup
-                \series@index\m@ne
-                \def\current@bibfield{#3}%
-                \@ifempty{#1}{%
-                    \@temptokena{\ifnum\lastkern=\@ne\ignorespaces\fi #2}%
-                }{%
-                    \@temptokena{\SwapBreak{#1}#2}%
-                }%
-                \toks@\@xp{#3}%
-                \edef\@tempa{\the\@temptokena{\the\toks@}}%
-                \rkvIfAdditive#3{}{%
-                    \get@current@properties
-                    \select@auxlanguage
-                }%
-                \@tempa
-            \endgroup
-        \fi
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\select@auxlanguage}
-%    \begin{macrocode}
-\def\select@auxlanguage{%
-    \ifx\prop'language\@empty
-    \else
-        \@xp\selectlanguage\@xp{\prop'language}%
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\erase@field}
-%    There are some fields that can appear in more than one place in a
-%    reference, depending on context.  For example, if a book has an
-%    editor but no author, the editor appears at the beginning of the
-%    entry, but if the book has both an editor and an author, the
-%    editor appears at the end of the entry. A simple way to handle
-%    this is to ``erase'' the \fld{editor} field after printing it,
-%    which is what \cs{erase@field} is for.
-%
-%    The obvious definition of \cs{erase@field} is
-%    \begin{verbatim}
-%    \def\erase@field#1{\global\let#1\@empty}
-%\end{verbatim}
-%    but that doesn't work because the top-level value of
-%    \pkg{rkeyval} fields isn't \cs{@empty}; instead, it contains a
-%    setter function used by \cs{RestrictedSetKeys} when processing a
-%    key-value list (see \cs{rkv@DSAK}, \cs{rsk@set@a} and
-%    \cs{rsk@set@b}).
-%
-%    On the other hand, rewriting the field locally won't work
-%    either, since \cs{erase@field} will typically be executed inside
-%    the group established by \cs{bib@append}.  Instead, we want to
-%    rewrite the value right after \cs{bib@append}'s group ends.  One
-%    way to do this would be to keep a list of fields to be erased and
-%    have \cs{bib@append} iterate over the list after its
-%    \ncn{endgroup}.
-%
-%    However, as long as the call to \cs{erase@field}
-%    is never nested within any deeper groups, it's simpler just to
-%    use \cs{aftergroup}, which is what we'll do (``Sufficient unto
-%    the day is the evil thereof'' and all that).
-%    \begin{macrocode}
-\def\erase@field#1{%
-    \aftergroup\let\aftergroup#1\aftergroup\@empty
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\get@current@properties}
-%    This retrieves the auxiliary properties for the current field
-%    value, as defined by \cs{current@bibfield} and
-%    \cs{series@index}.
-%    \begin{macrocode}
-\def\get@current@properties{%
-    \begingroup
-        \@xp\get@nth@property\@xp\@tempa\current@bibfield\series@index
-        \edef\@tempa{%
-            \@nx\RestrictedSetKeys{}{prop}{%
-                \def\@nx\@tempa{\@nx\prop@reset \@nx\the\@nx\rsk@toks}%
-            }{\@tempa}%
-        }%
-        \@tempa
-    \@xp\endgroup
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\BibSpecAlias}
-%    This is a \cs{def} rather than a \cs{let} because using \cs{let}
-%    would make \cn{BibSpecAlias} statements order-sensitive in a way
-%    that seems frequently to be a stumbling block to unwary package
-%    writers.  But then we should probably do at least the simplest
-%    kind of infinite loop check.
-%    \begin{macrocode}
-\newcommand{\BibSpecAlias}[2]{%
-    \@xp\def\@xp\@tempa\@xp{\csname setbib@#1\@xp\endcsname}%
-    \@xp\ifx\csname setbib@#2\endcsname\@tempa
-        \amsrefs@error{%
-            Mirror alias #1->#2 not allowed (infinite loop)}\@ehc
-    \else
-        \@xp\def\csname setbib@#1\@xp\endcsname
-            \@xp{\csname setbib@#2\endcsname}%
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsection{The standard bibliography types}
-%
-%    \begin{macrocode}
-\BibSpec{article}{%
-    +{}  {\PrintAuthors}                {author}
-    +{,} { \textit}                     {title}
-    +{.} { }                            {part}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintContributions}         {contribution}
-    +{.} { \PrintPartials}              {partial}
-    +{,} { }                            {journal}
-    +{}  { \textbf}                     {volume}
-%    \end{macrocode}
-%    The date form is tricky depending on presence or absence of DOI.
-%    \begin{macrocode}
-    +{}  { \PrintDatePV}                {date}
-    +{,} { \issuetext}                  {number}
-    +{,} { \eprintpages}                {pages}
-    +{,} { }                            {status}
-    +{,} { \PrintDOI}                   {doi}
-    +{,} { available at \eprint}        {eprint}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-
-\BibSpec{partial}{%
-    +{}  {}                             {part}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintContributions}         {contribution}
-    +{,} { }                            {journal}
-    +{}  { \textbf}                     {volume}
-    +{}  { \PrintDatePV}                {date}
-    +{,} { \issuetext}                  {number}
-    +{,} { \eprintpages}                {pages}
-}
-
-\BibSpec{contribution}{%
-    +{} {}                             {type}
-    +{} { by \PrintNameList}           {author}
-}
-
-\BibSpec{book}{%
-    +{}  {\PrintPrimary}                {transition}
-    +{,} { \textit}                     {title}
-    +{.} { }                            {part}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintEdition}               {edition}
-    +{}  { \PrintEditorsB}              {editor}
-    +{,} { \PrintTranslatorsC}          {translator}
-    +{,} { \PrintContributions}         {contribution}
-    +{,} { }                            {series}
-    +{,} { \voltext}                    {volume}
-    +{,} { }                            {publisher}
-    +{,} { }                            {organization}
-    +{,} { }                            {address}
-    +{,} { \PrintDateB}                 {date}
-    +{,} { }                            {status}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-
-\BibSpec{collection.article}{%
-    +{}  {\PrintAuthors}                {author}
-    +{,} { \textit}                     {title}
-    +{.} { }                            {part}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintContributions}         {contribution}
-    +{,} { \PrintConference}            {conference}
-    +{}  {\PrintBook}                   {book}
-    +{,} { }                            {booktitle}
-    +{,} { \PrintDateB}                 {date}
-    +{,} { pp.~}                        {pages}
-    +{,} { }                            {status}
-    +{,} { \PrintDOI}                   {doi}
-    +{,} { available at \eprint}        {eprint}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-
-\BibSpec{conference}{%
-    +{}  {}                        {title}
-    +{}  {\PrintConferenceDetails} {transition}
-}
-
-\BibSpec{innerbook}{%
-    +{,} { }                            {title}
-    +{.} { }                            {part}
-    +{:} { }                            {subtitle}
-    +{,} { \PrintEdition}               {edition}
-    +{}  { \PrintEditorsB}              {editor}
-    +{,} { \PrintTranslatorsC}          {translator}
-    +{,} { \PrintContributions}         {contribution}
-    +{,} { }                            {series}
-    +{,} { \voltext}                    {volume}
-    +{,} { }                            {publisher}
-    +{,} { }                            {organization}
-    +{,} { }                            {address}
-    +{,} { \PrintDateB}                 {date}
-    +{.} { }                            {note}
-}
-
-\BibSpec{report}{%
-    +{}  {\PrintPrimary}                {transition}
-    +{,} { \textit}                     {title}
-    +{.} { }                            {part}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintEdition}               {edition}
-    +{,} { \PrintContributions}         {contribution}
-    +{,} { Technical Report }           {number}
-    +{,} { }                            {series}
-    +{,} { }                            {organization}
-    +{,} { }                            {address}
-    +{,} { \PrintDateB}                 {date}
-    +{,} { \eprint}                     {eprint}
-    +{,} { }                            {status}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-
-\BibSpec{thesis}{%
-    +{}  {\PrintAuthors}                {author}
-    +{,} { \textit}                     {title}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintThesisType}            {type}
-    +{,} { }                            {organization}
-    +{,} { }                            {address}
-    +{,} { \PrintDateB}                 {date}
-    +{,} { \eprint}                     {eprint}
-    +{,} { }                            {status}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\BibSpecAlias{periodical}{book}
-\BibSpecAlias{collection}{book}
-\BibSpecAlias{proceedings}{book}
-\BibSpecAlias{manual}{book}
-\BibSpecAlias{miscellaneous}{book}
-\BibSpecAlias{misc}{miscellaneous}
-\BibSpecAlias{unpublished}{book}
-\BibSpecAlias{proceedings.article}{collection.article}
-\BibSpecAlias{techreport}{report}
-%    \end{macrocode}
-%
-%    \begin{macro}{\setbib@incollection}
-%    \begin{macrocode}
-\edef\setbib@incollection{%
-    \@xp\@nx\csname setbib@collection.article\endcsname
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\setbib@inproceedings}
-%    \begin{macrocode}
-\edef\setbib@inproceedings{%
-    \@xp\@nx\csname setbib@collection.article\endcsname
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    Some more entry types for implementing abbreviations.
-%    \begin{macrocode}
-\BibSpec{name}{%
-    +{}  {\PrintAuthors}    {name}
-}
-
-\BibSpec{publisher}{%
-    +{,} { } {publisher}
-    +{,} { } {address}
-}
-%    \end{macrocode}
-%
-% \subsection{The \env{biblist} environment}
-%
-%    The \env{biblist} environment can be used with a section or chapter
-%    heading.
-%
-%    Use a standard \lat/ counter for numbering bibliography items.
-%    \begin{macrocode}
-\newcounter{bib}
-%    \end{macrocode}
-%
-%    \begin{environment}{biblist}
-%    \begin{macrocode}
-\newenvironment{biblist}{%
-    \setcounter{bib}\z@
-    \@biblist
-}{%
-    \@endbiblist
-}
-%    \end{macrocode}
-%    \end{environment}
-%
-%    \begin{environment}{biblist*}
-%    \begin{macrocode}
-\newenvironment{biblist*}{%
-    \@biblist
-}{%
-    \@endbiblist
-}
-%    \end{macrocode}
-%    \end{environment}
-%
-%    \begin{macro}{\@biblist}
-%    \begin{macrocode}
-\newcommand\@biblist[1][]{%
-    \stepcounter{bib@env}
-    \normalfont
-    \footnotesize
-    \labelsep .5em\relax
-    \list{\BibLabel}{%
-        \restore@labelwidth
-        \@maxlabelwidth\z@
-        \@nmbrlisttrue
-        \def\@listctr{bib}%
-        \let\makelabel\bib@mklab
-        #1\relax
-    }%
-    \sloppy
-%    \end{macrocode}
-%    Discourage page breaks within bibliography entries and disable them
-%    completely for entries that are less than four lines long.
-%    \begin{macrocode}
-    \interlinepenalty\@m
-    \clubpenalty\@M
-    \widowpenalty\clubpenalty
-    \frenchspacing
-    \ResetCapSFCodes
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@endbiblist}
-%    Change error for empty list (no items) to warning, to allow authors
-%    to leave their bibliography temporarily empty during writing:
-%    \begin{macrocode}
-\def\@endbiblist{%
-    \save@labelwidth
-    \def\@noitemerr{\@latex@warning{Empty bibliography list}}%
-    \endlist
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@maxlabelwidth}
-%    \begin{macrocode}
-\newdimen\@maxlabelwidth
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bib@mklab}
-%    \begin{macrocode}
-\def\bib@mklab#1{%
-    \settowidth\@tempdima{#1}%
-    \ifdim \@tempdima > \@maxlabelwidth
-        \global\@maxlabelwidth\@tempdima
-    \fi
-    #1\hfil
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macrocode}
-\newcounter{bib@env}
-%    \end{macrocode}
-%
-%    \begin{macro}{\save@labelwidth}
-%    \begin{macrocode}
-\def\save@labelwidth{%
-    \if@filesw
-        \immediate\write\@auxout{%
-            \string\newlabel{[bibenv:\the\c@bib@env]}{\the\@maxlabelwidth}%
-        }%
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\restore@labelwidth}
-%    \begin{macrocode}
-\def\restore@labelwidth{%
-    \@xp\ifx \csname r@[bibenv:\the\c@bib@env]\endcsname \relax
-        \resetbiblist{00}%
-    \else
-        \@xp\labelwidth\csname r@[bibenv:\the\c@bib@env]\endcsname
-        \leftmargin\labelwidth
-        \advance\leftmargin\labelsep
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ResetCapSFCodes}
-%    Presumably this is here because there has been a problem in the
-%    past with packages that change the \cs{catcode}s of capital
-%    letters.
-%    \begin{macrocode}
-\providecommand{\ResetCapSFCodes}{%
-    \count@=`\A
-    \def\@tempa{%
-        \sfcode\count@=\@m
-        \advance\count@\@ne
-            \ifnum\count@>`\Z\relax \expandafter\@gobble \fi
-        \@tempa
-    }%
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\CurrentBib}
-%    In case this is undefined sometimes.
-%    \begin{macrocode}
-\def\CurrentBib{??}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\BibLabel}
-%    \begin{macrocode}
-\newcommand{\BibLabel}{%
-    [\hyper@anchorstart{cite.\CurrentBib}\relax\thebib\hyper@anchorend]%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\resetbiblist}
-%    \begin{macrocode}
-\newcommand{\resetbiblist}[1]{%
-    \settowidth\labelwidth{\def\thebib{#1}\BibLabel}%
-    \leftmargin\labelwidth
-    \ifdim\labelwidth=\z@
-        \leftmargin=1em
-        \itemindent=-\leftmargin
-    \else
-        \advance\leftmargin\labelsep
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsection{Processing bibliography entries}
-%
-%    There are several things one might want to do when a \cn{bib} entry
-%    is encountered:
-%    \begin{enumerate}
-%
-%    \item Format and print it.  This corresponds to the direct entry
-%    of bibliography items as described in section~2.1 of the users's
-%    guide.
-%
-%    \item Copy it into a \fn{.bbl} file.  This corresponds to the use
-%    of \cn{bibselect} and an external \fn{.ltb} database as described
-%    in section~2.2 of the user's guide.
-%
-%    \item Store the full information in memory.  This is done by
-%    \cn{bib*}.
-%
-%    \end{enumerate}
-%
-%    \begin{macro}{\bib}
-%    Here is where the rubber hits the road.
-%    \begin{macrocode}
-\newcommand{\bib}{%
-    \begingroup
-        \@ifstar{%
-            \@tempswatrue
-            \let\@bibdef\star@bibdef
-            \BibItem
-        }{%
-            \@tempswafalse
-            \BibItem
-        }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\BibItem}
-%    \MacroArgs
-%    \macroarg{1}{citekey}
-%    \macroarg{2}{bibtype}
-%    \begin{macrocode}
-\newcommand{\BibItem}[2]{%
-    \def\@tempa{#1}%
-    \edef\@tempb{%
-        \@nx\@bibdef\@xp\@nx\csname setbib@#2\endcsname{#2}%
-            {\macrotext\@tempa}%
-    }%
-    \@tempb
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@bibdef}
-%    \cs{@bibdef} is a pointer to the procedure that should be handed
-%    the entry's key-value pairs.  It has one of four values:
-%    \begin{enumerate}
-%
-%    \item \cs{star@bibdef}
-%
-%    \item \cs{normal@bibdef}
-%
-%    \item \cs{copy@bibdef}
-%
-%    \item \cs{selective@bibdef}
-%
-%    \end{enumerate}
-%    \MacroArgs
-%    \macroarg{1}{\cs{setbib@}bibtype}
-%    \macroarg{2}{bibtype}
-%    \macroarg{3}{citekey}
-%    \begin{macrocode}
-\AtBeginDocument{\let\@bibdef\normal@bibdef}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bib@exec}
-%    And \cs{bib@exec} is a pointer to the procedure that
-%    \cs{normal@bibdef} will invoke to process the key-value pairs
-%    after they've been  parsed.  It has one
-%    of these values:
-%    \begin{enumerate}
-%
-%    \item \cs{bib@store}
-%
-%    \item \cs{bib@print}
-%
-%    \end{enumerate}
-%    \MacroArgs
-%    \macroarg{1}{citekey}
-%    \macroarg{2}{\cs{the}\cs{rsk@toks}}
-%    \macroarg{3}{\cs{setbib@}bibtype}
-%    \begin{macrocode}
-\AtBeginDocument{\let\bib@exec\bib@print}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsubsection{\cs{@bibdef} Implementations}
-%
-%    \begin{macro}{\normal@bibdef}
-%    \MacroArgs
-%    \macroarg{1}{\cs{setbib@}bibtype}
-%    \macroarg{2}{bibtype}
-%    \macroarg{3}{citekey}
-%    \begin{macrocode}
-\def\normal@bibdef#1#2#3{%
-%    \end{macrocode}
-%    \cs{CurrentBibType} is used by \pkg{export-bibtex}, but there
-%    might be a better way to handle it. (dmj)
-%    \begin{macrocode}
-    \def\CurrentBibType{#2}%
-    \ifx\relax#1%
-        \amsrefs@error{Undefined entry type: #2}\@ehc
-        \let#1\setbib@misc
-    \fi
-    \RestrictedSetKeys{}{bib}%
-        {\bib@exec{#3}{\the\rsk@toks}{#1}\endgroup}%
-}
-
-\let\@bibdef\normal@bibdef
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\star@bibdef}
-%    \MacroArgs
-%    \macroarg{1}{\cs{setbib@}bibtype}
-%    \macroarg{2}{bibtype}
-%    \macroarg{3}{citekey}
-%    \begin{macrocode}
-\def\star@bibdef{%
-    \let\bib@exec\bib@store
-    \normal@bibdef
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\copy@bibdef}
-%    This is a variation that copies everything into the \fn{.bbl}
-%    file.  Used by \cn{bibselect*} and \cn{bib*} inside \fn{.ltb}
-%    files.
-%    \begin{macrocode}
-\def\copy@bibdef{%
-    \if@tempswa
-        \@xp\defer@bibdef
-    \else
-        \@xp\copy@bibdef@a
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\copy@bibdef@a}
-%    \begin{macrocode}
-\def\copy@bibdef@a#1#2#3#4{%
-    \@open@bbl@file
-    \process@xrefs{#4}%
-    \bbl@write{%
-        \string\bib\if@tempswa*\fi{#3}{#2}\string{\iffalse}\fi
-    }%
-%    \end{macrocode}
-%    Since we're supplying our own definition of \cs{rsk@set}, we
-%    don't actually need the group argument, so we leave it out to
-%    save a few tokens.
-%    \begin{macrocode}
-    \RestrictedSetKeys{\global\let\rsk@set\bbl@copy}\@empty
-        {\bbl@write{\iffalse{\fi\string}^^J}%
-         \endgroup}{#4}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macrocode}
-\catcode`\:=11
-
-\def\modify@xref@fields{%
-    \let\set:bib'author\output@xref@a
-    \let\set:bib'editor\output@xref@a
-    \let\set:bib'translator\output@xref@a
-    \let\set:bib'journal\output@xref@a
-    \let\set:bib'publisher\output@xref@a
-    \def\set:bib'xref##1##2{\output@xref@{##1}\@empty}%
-}
-
-\catcode`\:=12
-
-\def\process@xrefs#1{%
-    \begingroup
-        \RestrictedSetKeys{\modify@xref@fields}{bib}{\the\rsk@toks}{#1}%
-    \endgroup
-}
-
-\def\output@xref@a#1#2{%
-    \def\@tempa{#1}%
-    \lowercase{\def\@tempb{#1}}%
-    \ifx\@tempa\@tempb
-        \output@xref@{#1}%
-    \fi
-}
-
-\def\output@xref@#1{%
-    \@ifnotempty{#1}{%
-        \@ifundefined{bi@#1}{}{%
-            \begingroup
-                \let\star@bibdef\copy@bibdef@a
-                \csname bi@#1\endcsname
-            \endgroup
-        }%
-        \@xp\g@undef\csname bi@#1\endcsname
-    }%
-}
-%    \end{macrocode}
-%
-%    \begin{macro}{\bbl@copy}
-%    \begin{macrocode}
-\def\bbl@copy#1\endcsname#2{%
-    \begingroup
-        \def\@tempa{#1}%
-        \toks@{{#2}}%
-        \star@{\bbl@copy@a}{}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bbl@copy@a}
-%    \begin{macrocode}
-\def\bbl@copy@a#1{%
-        \@ifnotempty{#1}{%
-            \add@toks@{*{#1}}%
-        }%
-        \bbl@write{ \space\@tempa=\the\toks@,}%
-    \endgroup
-    \rsk@resume
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\selective@bibdef}
-%    This is a variation that ignores anything not having a known
-%    citation key.  Used by \cn{bibselect}.
-%
-%    \MacroArgs
-%    \macroarg{1}{\cs{setbib@}bibtype}
-%    \macroarg{2}{bibtype}
-%    \macroarg{3}{citekey}
-%    \begin{macrocode}
-\def\selective@bibdef#1#2#3{%
-    \@xp\selbibdef@a\csname b@#3\endcsname{#1}{#2}{#3}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\selbibdef@a}
-%    \begin{macrocode}
-\def\selbibdef@a#1{%
-    \def\@tempa{\endgroup\@gobblefour}%
-    \ifx\relax#1\else \@xp\selbibdef@b#1\@nil \fi
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\selbibdef@b}
-%    \begin{macrocode}
-\def\selbibdef@b#1#2#3\@nil{%
-    \ifx 1#2\let\@tempa\copy@bibdef\fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\defer@bibdef}
-%    This is a variation that ignores anything not having a known
-%    citation key.  Used by \cn{bibselect}.
-%
-%    \MacroArgs
-%    \macroarg{1}{\cs{setbib@}bibtype}
-%    \macroarg{2}{bibtype}
-%    \macroarg{3}{citekey}
-%    \macroarg{4}{key-val pairs}
-%    \begin{macrocode}
-\def\defer@bibdef#1#2#3#4{%
-        \@xp\gdef\csname bi@#3\endcsname{%
-            \bib*{#3}{#2}{#4}%
-        }%
-        \@xp\addto@defer@list \csname bi@#3\endcsname
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bibdefer@list}
-%    \begin{macrocode}
-\let\bibdefer@list\@empty
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\addto@defer@list}
-%    \begin{macrocode}
-\def\addto@defer@list#1{%
-    \begingroup
-        \def\do{\@nx\do\@nx}%
-        \xdef\bibdefer@list{\bibdefer@list\do#1}%
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsubsection{\cs{bib@exec} Implementations}
-%
-%    \begin{macro}{\bib@store}
-%    This is the easy one.  It just stores the entire set of key-value
-%    pairs in \cs{bi@}\emph{citekey}.
-%    \begin{macrocode}
-\def\bib@store#1{%
-    \afterassignment\@gobble
-    \@xp\xdef\csname bi@#1\endcsname
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\numeric@refs}
-%    \begin{macrocode}
-\def\numeric@refs{00}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bib@print}
-%    \MacroArgs
-%    \macroarg{1}{citekey}
-%    \macroarg{2}{\cs{the}\cs{rsk@toks}}
-%    \macroarg{3}{\cs{setbib@}bibtype}
-%    \begin{macrocode}
-\def\bib@print#1#2#3{%
-    \bib@start{#1}%
-        \let\setbib@@#3%
-        #2\relax       % execute definitions locally
-        \bib@resolve@xrefs
-        \bib@field@patches
-        \bib@selectlanguage
-        \generate@label
-        \bib'setup
-        \bib@cite{#1}%
-        \kern\@ne sp
-        \ifx\setbib@@\setbib@article
-            \ifx\bib'booktitle\@empty
-                \ifx\bib'book\@empty
-                    \ifx\bib'conference\@empty
-                    \else
-                        \let\setbib@@\setbib@incollection
-                    \fi
-                \else
-                    \let\setbib@@\setbib@incollection
-                \fi
-            \else
-                \let\setbib@@\setbib@incollection
-            \fi
-        \fi
-        \setbib@@
-    \bib@end
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bib@print@inner}
-%    Note that the order of the arguments is reversed with respect to
-%    \cs{bib@print}.  Maybe that isn't such a great idea.
-%    \MacroArgs
-%    \macroarg{1}{\cs{setbib@}bibtype}
-%    \macroarg{2}{\cs{the}\cs{rsk@toks}}
-%    \begin{macrocode}
-\def\bib@print@inner#1#2{%
-    \begingroup
-        #2\relax       % execute definitions locally
-        \bib@field@patches
-        \bib'setup
-        #1%
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\current@citekey}
-%    \begin{macrocode}
-\let\current@citekey\@empty
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\prev@citekey}
-%    \begin{macrocode}
-\let\prev@citekey\@empty
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bib@start}
-%    There used to be more to it.
-%    \begin{macrocode}
-\def\bib@start#1{%
-    \begingroup
-        \def\current@citekey{#1}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bib@end}
-%    Instead of being handled by \cs{bib@end}, ending punctuation is
-%    normally handled via the \fld{transition} field (q.v.)
-%    \begin{macrocode}
-\def\bib@end{%
-        \relax
-        \@xp\PrintBackRefs\@xp{\CurrentBib}%
-        \par
-        \save@primary
-        \global\let\prev@citekey\current@citekey
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsubsection{Resolving cross-references}
-%
-%    \begin{macro}{\bib@resolve@xrefs}
-%    \begin{macrocode}
-\def\bib@resolve@xrefs{%
-    \xref@check@c\bib'xref
-    \xref@check@a\bib'author
-    \xref@check@a\bib'editor
-    \xref@check@a\bib'translator
-    \xref@check@b\bib'journal
-    \xref@check@b\bib'publisher
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\xref@check@a}
-%    Resolve a contributor (typically a \cn{DefineName}) alias.
-%    Requires rebuilding the list.
-%    \begin{macrocode}
-\def\xref@check@a#1{%
-    \ifx\@empty#1\relax
-    \else
-        \begingroup
-            \toks@\@emptytoks
-            \@temptokenb\@emptytoks
-            \series@index\z@
-            \def\name{\xref@check@aa#1}%
-            #1\relax
-            \edef\@tempa{%
-                \def\@nx#1{\the\toks@}%
-                \the\@temptokenb
-            }%
-        \@xp\endgroup
-        \@tempa
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\xref@check@aa}
-%    \begin{macrocode}
-\def\xref@check@aa#1#2{%
-    \advance\series@index\@ne
-    \def\@tempa{#2}%
-    \lowercase{\def\@tempb{#2}}%
-    \ifx\@tempa\@tempb
-        \ifx\@tempa\@empty
-            \add@toks@{\name{}}%
-        \else
-            \@ifundefined{bi@#2}{%
-                \BibAbbrevWarning{#2}%
-                \add@toks@{\name{#2}}%
-            }{%
-                \xref@check@ab#1{#2}%
-            }%
-        \fi
-    \else
-        \add@toks@{\name{#2}}%
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\xref@check@ab}
-%    \begin{macrocode}
-\def\xref@check@ab#1#2{%
-    \csname bi@#2\endcsname
-    \ifx\@empty\bib'name
-        \@temptokena{#2}%
-    \else
-        \@temptokena\@xp{\bib'name}%
-        \get@property\@tempa\bib'name
-        \edef\@tempa{%
-            \@nx\addto@hook\@temptokenb{%
-                \@nx\reset@nth@property\@nx#1\the\series@index{\@tempa}%
-            }%
-        }%
-        \@tempa
-    \fi
-    \edef\@tempa{\@nx\add@toks@{\@nx\name{\the\@temptokena}}}%
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\xref@check@b}
-%    Resolve a \fld{journal} or \fld{publisher} alias (typically a
-%    \cn{DefinePublisher} or \cn{DefineJournal} alias).
-%    \begin{macrocode}
-\def\xref@check@b#1{%
-    \ifx\@empty#1%
-    \else
-        \toks@\@xp{#1}%
-        \edef\@tempb{\lowercase{\def\@nx\@tempa{\the\toks@}}}%
-        \@tempb
-        \ifx\@tempa#1\relax % all lowercase
-            \@ifundefined{bi@#1}{%
-                \BibAbbrevWarning{#1}%
-            }{%
-%    \end{macrocode}
-%    We pass control to \cs{xref@check@c} here to handle inheritance
-%    of multiple fields properly.  This means some of the checking
-%    we've just done gets done again, but I can live with that.
-%    \begin{macrocode}
-                \let#1\@empty
-                \xref@check@c\@tempa
-            }%
-        \fi
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\xref@check@c}
-%    Resolve an \fld{xref} field.
-%    \begin{macrocode}
-\def\xref@check@c#1{%
-    \ifx#1\@empty
-    \else
-        \begingroup
-            \let\DSK@def\xref@add@toks
-            \let\DSK@append\xref@append
-            \toks@\@emptytoks
-            \let\bib@reset\@empty
-%    \end{macrocode}
-%    The \cs{@for} here is just a fancy way of expanding \arg{1}. (Or
-%    is it?)
-%    \begin{macrocode}
-            \@for\xref@ID:=#1\do{%
-                \@ifundefined{bi@\xref@ID}{%
-                    \XRefWarning{\xref@ID}%
-                }{%
-                    \csname bi@\xref@ID\endcsname
-                }%
-            }%
-            \edef\@tempa{\endgroup\the\toks@}%
-        \@tempa
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\xref@add@toks}
-%    If any title occurs in an \fld{xref}ed item, assume that it is a book
-%    title. This might not always be the best assumption? Let's see how
-%    it goes though. [mjd,2001-12-11]
-%
-%    \MacroArgs
-%    \macroarg{1}{\cs{bib'}field}
-%    \macroarg{2}{value}
-%    \begin{macrocode}
-\def\xref@add@toks#1#2#3{%
-    \ifx#1\@empty
-        \edef\@tempa{%
-            \@nx\add@toks@{\@xp\@nx\csname\rkv@setter#1\endcsname{#2}{#3}}%
-        }%
-        \@tempa
-    \else
-        \in@\bib'title{#1}%
-        \ifin@
-            \ifx\bib'booktitle\@empty
-                \edef\@tempa{%
-                    \@nx\add@toks@{%
-                        \@xp\@nx\csname set:bib'booktitle\endcsname
-                    }%
-                }%
-                \@tempa
-                \add@toks@{{#2}{#3}}%
-            \fi
-        \fi
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macrocode}
-\def\xref@append#1#2#3#4{%
-    \edef\@tempa{%
-        \@nx\add@toks@{\@xp\@nx\csname\rkv@setter#2\endcsname{#3}{#4}}%
-    }%
-    \@tempa
-}
-%    \end{macrocode}
-%
-%    \begin{macro}{\BibAbbrevWarning}
-%    \begin{macrocode}
-\def\BibAbbrevWarning#1{\amsrefs@warning{Abbreviation '#1' undefined}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\XrefWarning}
-%    \begin{macrocode}
-\def\XRefWarning#1{\amsrefs@warning{Xref '#1' undefined}}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsubsection{Bib field preprocessing}
-%
-%    \begin{macro}{\current@primary}
-%    \begin{macrocode}
-\let\current@primary\@empty
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\previous@primary}
-%    \begin{macrocode}
-\let\previous@primary\@empty
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\save@primary}
-%    \begin{macrocode}
-\IfOption{nobysame}{%
-    \let\save@primary\@empty
-}{%
-    \def\save@primary{%
-        \global\let\previous@primary\current@primary
-    }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bib@field@patches}
-%    \begin{macrocode}
-\def\bib@field@patches{%
-    \ifx\bib'author\@empty
-        \ifx\bib'editor\@empty
-            \let\current@primary\bib'translator
-            \let\print@primary\PrintTranslatorsA
-        \else
-            \let\current@primary\bib'editor
-            \let\print@primary\PrintEditorsA
-        \fi
-    \else
-        \let\current@primary\bib'author
-        \let\print@primary\PrintAuthors
-    \fi
-    \ifx\bib'address\@empty
-        \let\bib'address\bib'place
-    \fi
-    \ifx\bib'organization\@empty
-        \ifx\bib'institution\@empty
-            \let\bib'organization\bib'school
-        \else
-            \let\bib'organization\bib'institution
-        \fi
-    \fi
-    \ifx\bib'date\@empty
-        \ifx\bib'year\@empty
-            \let\bib@year\bib'status
-        \else
-            \bib@parsedate\bib'year
-        \fi
-    \else
-        \bib@parsedate\bib'date
-    \fi
-%    \end{macrocode}
-%    Example~21 on page~74 of \emph{Mathematics into
-%    Type}~\cite{SOS99} seems to indicate that when the year serves as
-%    the volume number, the date should be suppressed.  If so, this is
-%    where that is done.
-%    \begin{macrocode}
-    \def\@tempa{year}%
-    \ifx\bib'volume\@tempa
-        \let\bib'volume\bib@year
-        \let\bib'date\@empty
-    \fi
-%    \end{macrocode}
-%    \cs{bib'language} is used for producing the printed rendition of
-%    the language. \cs{bib@language} needs to be in the form required by
-%    \cn{selectlanguage}.
-%    \begin{macrocode}
-    \bib@language@fixup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsubsection{Date setup}
-%
-%    \begin{macro}{\bib@year}
-%    \begin{macrocode}
-\let\bib@year\@empty
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bib@month}
-%    \begin{macrocode}
-\let\bib@month\@empty
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bib@day}
-%    \begin{macrocode}
-\let\bib@day\@empty
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bib@parsedate}
-%    Parse an ISO 8601 date into its year, month and day components,
-%    but without actually verifying that any of the components are
-%    numeric.  Hmmm.
-%    \begin{macrocode}
-\def\bib@parsedate#1{%
-    \@xp\bib@parsedate@a#1---\@nil
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bib@parsedate@a}
-%    \begin{macrocode}
-\def\bib@parsedate@a#1-#2-#3-#4\@nil{%
-    \def\bib@year{#1}%
-    \def\bib@month{#2}%
-    \def\bib@day{#3}%
-%    \end{macrocode}
-%    The rest of this macro tries to rewrite \cs{bib'date} into a
-%    normalized form.  I'm not sure if this is a good idea.
-%    \begin{macrocode}
-    \ifx\@empty\bib@day
-        \ifx\@empty\bib@month
-            \let\bib'date\bib@year
-        \else
-            \def\bib'date{#1-#2}%
-        \fi
-    \else
-        \def\bib'date{#1-#2-#3}%
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsubsection{Language setup}
-%
-%    \begin{macro}{\bib@language@fixup}
-%    \begin{macrocode}
-\def\bib@language@fixup{%
-    \ifx\bib'hyphenation\@empty
-        \ifx\bib'language\@empty
-            \let\bib@language\biblanguagedefault
-        \else
-            \let\bib@language\bib'language
-        \fi
-    \else
-        \let\bib@language\bib'hyphenation
-    \fi
-    \def\@tempa##1 ##2\@nil{\lowercase{\def\bib@language{##1}}}%
-%    \end{macrocode}
-%    The mysterious \cs{@firstofone} here is to preserve the space
-%    before the \cs{@nil}.
-%    \begin{macrocode}
-    \@firstofone{\@xp\@tempa\bib@language} \@nil
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bib@selectlanguage}
-%    For \cn{bib} purposes we are interested mainly in testing whether
-%    the hyphenation patterns are the same. So we use an
-%    if-same-patterns test (by which \pkg{babel}'s `english' and
-%    `american' compare as equal) rather than an if-same-language test.
-%    Also, the way that the \cn{selectlanguage} command checks to see
-%    whether a language has been properly defined for babel use is to
-%    see if \cs{dateLANGUAGE} is defined. And if we tried to select an
-%    undefined language, the result would be a \lat/ error.
-%    \begin{macrocode}
-\def\bib@selectlanguage{%
-    \@ifsame@patterns{\languagename}{\bib@language}{}{%
-        \@ifundefined{date\bib@language}{}{%
-            \@xp\selectlanguage\@xp{\bib@language}%
-        }%
-    }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@ifsame@patterns}
-%    \begin{macrocode}
-\def\@ifsame@patterns#1#2{%
-    \@xp\@ifsamepat\csname l@#1\@xp\endcsname\csname l@#2\endcsname
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@ifsamepat}
-%    \begin{macrocode}
-\def\@ifsamepat#1#2{%
-    \ifnum \ifx\relax#1\m@ne\else#1\fi = \ifx\relax#2\m@ne\else#2\fi
-        \@xp\@firstoftwo
-    \else
-        \@xp\@secondoftwo
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\languagename}
-%    \begin{macro}{\biblanguageEnglish}
-%    \begin{macro}{\biblanguagedefault}
-%    \begin{macro}{\bib@language}
-%    \begin{macrocode}
-\providecommand{\languagename}{english}
-\def\biblanguageEnglish{english}
-\let\biblanguagedefault\biblanguageEnglish
-\let\bib@language\@empty
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%    \end{macro}
-%    \end{macro}
-%
-% \subsubsection{Citation label setup}
-%
-%    \begin{macro}{\generate@label}
-%    \begin{macrocode}
-\let\generate@label\relax
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@label}
-%    \begin{macrocode}
-\def\cite@label{\@currentlabel}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\alpha@label}
-%    \begin{macrocode}
-\let\alpha@label\relax
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bib@cite}
-%    When \cs{bib@cite} is called, author name and year are available
-%    in \cs{bib@author} and \cs{bib@year}.
-%    \MacroArgs
-%    \macroarg{1}{citekey}
-%    \begin{macrocode}
-\def\bib@cite#1{%
-    \def\CurrentBib{#1}%
-    \alpha@label            % modify \thebib if necessary
-    \item\leavevmode
-    \SK@\SK@@label{#1}%
-    \@xp\bib@cite@a\csname b@#1\endcsname
-    \bibcite@write{#1}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macrocode}
-\def\bib@cite@a#1{%
-    \ifx\relax#1%
-        \begingroup
-            \auto@protect\etaltext
-            \protected@edef\@tempa{%
-                \gdef\@nx#1{%
-                    \@nx\citesel 01{\cite@label}{\bib@label@year}{}%
-                }%
-            }%
-        \@xp\endgroup
-        \@tempa
-    \else
-        \@xp\bib@cite@check\@xp#1#1\@empty\@empty\@empty\@empty\@empty
-    \fi
-}
-%    \end{macrocode}
-%
-%    \begin{macro}{\bib@cite@check}
-%    For the citation key we want to check if it is already defined. But
-%    there is a slight problem. There is already one control
-%    sequence in use for each bibliography entry, to store the label or
-%    the author/year information needed by \cn{cite}. If we introduce
-%    another control sequence to check whether a particular cite is
-%    multiply defined, then we double the number of control sequences
-%    used. For a large bibliography in a book this is fairly serious.
-%    This is addressed by using a \cs{citesel} function.
-%
-%    \MacroArgs
-%    \macroarg{1}{\cs{b@}citekey}
-%    \macroarg{2}{\cs{citesel}}
-%    \macroarg{3}{cited?}
-%    \macroarg{4}{used?}
-%    \macroarg{5}{label}
-%    \macroarg{6}{year}
-%    \macroarg{7}{backrefs}
-%    \begin{macrocode}
-\def\bib@cite@check#1#2#3#4#5#6#7{%
-    \ifx 1#4\relax
-        \DuplicateBibKeyWarning
-    \else
-%    \end{macrocode}
-%    This has gotten \emph{way} out of hand.
-%    \begin{macrocode}
-        \begingroup
-            \auto@protect\etaltext
-            \@apply\auto@protect\amsrefs@textsymbols
-            \@apply\auto@protect\amsrefs@textaccents
-            \@tempswafalse
-            \in@\CitePrintUndefined{#5}%
-            \ifin@
-                \let\@tempa\@empty
-            \else
-                \def\@tempa{#5}%
-            \fi
-            \ifx\@tempa\@empty
-            \else
-                \@xp\ifx\@xp\@currentlabel\cite@label
-                    \edef\@tempb{\cite@label}%
-                \else
-                    \let\@tempb\cite@label
-                \fi
-                \ifx\@tempa\@tempb
-                    \def\@tempa{#6}%
-                    \ifx\@tempa\bib@label@year
-                    \else
-                        \@tempswatrue
-                    \fi
-                \else
-                    \@tempswatrue
-                \fi
-            \fi
-            \if@tempswa
-                \@ifempty{#6}{%
-                    \def\@tempa{#5}%
-                    \let\@tempb\cite@label
-                }{%
-                    \def\@tempa{#5, #6}%
-                    \def\@tempb{\cite@label, \bib@label@year}%
-                }%
-                \amsrefs@warning{Citation label for \extr@cite#1 is
-                    changing from `\@tempa ' to `\@tempb '}%
-            \fi
-            \protected@edef\@tempa{%
-                \gdef\@nx#1{%
-                    \@nx\citesel #31{\cite@label}{\bib@label@year}{#7}%
-                }%
-            }%
-        \@xp\endgroup
-        \@tempa
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bib@label@year}
-%    \begin{macrocode}
-\let\bib@label@year\@empty
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\DuplicateBibKeyWarning}
-%    \begin{macrocode}
-\def\DuplicateBibKeyWarning{%
-    \amsrefs@warning{%
-        Duplicate \protect\bib\space key
-        `\CurrentBib ' detected\MessageBreakNS}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bibcite@write}
-%    \begin{macrocode}
-\def\bibcite@write#1{%
-    \if@filesw
-        \let\citesel\citesel@write
-        \csname b@#1\endcsname
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citesel@write}
-%    \begin{macrocode}
-\def\citesel@write#1#2#3#4#5{%
-    \begingroup
-        \toks@{{#3}{#4}}%
-        \immediate\write\@auxout{\string\bibcite{\CurrentBib}{\the\toks@}}%
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    Because duplicate bibs are caught immediately, we don't need
-%    \cs{bibcite} to run \cs{@testdef}.
-%    \begin{macrocode}
-\AtEndDocument{\let\bibcite\@gobbletwo}
-%    \end{macrocode}
-%
-%    \subsubsection{Printing the bibliography}
-%
-%    \begin{macro}{\bibname}
-%    \begin{macrocode}
-\providecommand{\bibname}{Bibliography}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\refname}
-%    \begin{macrocode}
-\providecommand{\refname}{References}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{environment}{bibchapter}
-%    We need to take a little extra trouble here to pre-expand the
-%    \cn{bibname}.
-%    \begin{macrocode}
-\newenvironment{bibchapter}[1][\bibname]{%
-    \begingroup
-        \protected@edef\@{\endgroup\protect\chapter*{#1}}%
-        \@
-}{\par}
-%    \end{macrocode}
-%    \end{environment}
-%
-%    \begin{environment}{bibsection}
-%    And here to pre-expand the \cn{refname}.
-%    \begin{macrocode}
-\newenvironment{bibsection}[1][\refname]{%
-    \begingroup
-        \protected@edef\@{\endgroup\protect\section*{#1}}%
-        \@
-}{\par}
-%    \end{macrocode}
-%    \end{environment}
-%
-%    \begin{environment}{bibdiv}
-%    Here we try to guess whether this is a book-like document or an
-%    article-like document.
-%    \begin{macrocode}
-\@ifundefined{chapter}{%
-    \newenvironment{bibdiv}{\bibsection}{\endbibsection}
-}{%
-    \newenvironment{bibdiv}{\bibchapter}{\endbibchapter}
-}
-%    \end{macrocode}
-%    \end{environment}
-%
-%    This is what the standard \cls{book} class has for the bibliography
-%    title:
-%    \begin{verbatim}
-%    \newenvironment{thebibliography}[1]
-%         {\chapter*{\bibname
-%            \@mkboth{\MakeUppercase\bibname}{\MakeUppercase\bibname}}%
-%          \list{\@biblabel{\@arabic\c@enumiv}}%
-%\end{verbatim}
-%
-%    \begin{environment}{thebibliography}
-%    \begin{macrocode}
-\renewenvironment{thebibliography}[1]{%
-    \bibdiv
-    \biblist[\resetbiblist{#1}]%
-}{%
-    \endbiblist
-    \endbibdiv
-}
-%    \end{macrocode}
-%    \end{environment}
-%
-% \subsection{Name, journal and publisher abbreviations}
-%
-%    The commands \cn{DefineName}, \cn{DefinePublisher}, and
-%    \cn{DefineJournal} are provided to make abbreviations a little
-%    easier.
-%
-%    \begin{macro}{\DefineName}
-%    \begin{macrocode}
-\newcommand{\DefineName}[2]{%
-    \bib*{#1}{name}{name={#2}}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\DefineJournal}
-%    \begin{macrocode}
-\newcommand{\DefineJournal}[4]{%
-    \bib*{#1}{periodical}{
-        issn={#2},
-        journal={#4}
-    }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\DefinePublisher}
-%    Note that an explicit \fld{address} field in a \cn{bib} entry will
-%    override the \fld{address} supplied as part of a
-%    \cn{DefinePublisher}.
-%    \begin{macrocode}
-\newcommand{\DefinePublisher}[4]{%
-    \bib*{#1}{publisher}{%
-        publisher={#3},
-        address={#4}
-    }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsection{Processing \fn{.ltb} files}
-%
-%    If you have a file that contains \pkg{amsrefs}-style
-%    \cn{bib} entries, you can use it as a database and extract items
-%    from it for use in another document. In typical relatively simple
-%    scenarios, the extraction can be done by \lat/ itself on the first
-%    pass, so that citations in the text will be successfully resolved
-%    on the second pass (possibly even the first, depending on what kind
-%    of bibliography sorting is used).
-%
-%    \begin{macro}{\bibselect}
-%    \begin{macrocode}
-\newcommand{\bibselect}{%
-    \@ifstar{%
-        \let\@bibdef\copy@bibdef
-        \BibSelect
-    }{%
-        \let\@bibdef\selective@bibdef
-        \BibSelect
-    }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\BibSelect}
-%    \begin{macrocode}
-\newcommand{\BibSelect}[2][\bblname]{%
-    \if@filesw
-        \typeout{Trying to create bbl file `#1.bbl' ...}%
-        \def\bibselect@msg{%
-            \typeout{ ... rats. Unable to create bbl file.}%
-        }%
-        \let\@open@bbl@file\OpenBBLFile
-        \@for\@tempa:=#2\do{\ReadBibData{\@tempa}}%
-    \fi
-    \@close@bbl@file
-    \@apply\g@undef\bibdefer@list
-    \global\let\bibdefer@list\@empty
-%    \end{macrocode}
-%    Now read the \fn{.bbl} file we just created.
-%    \begin{macrocode}
-    \let\@bibdef\normal@bibdef
-    \@input@{#1.bbl}%
-    \let\BibSelect\MultipleBibSelectWarning
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\MultipleBibSelectWarning}
-%    \begin{macrocode}
-\newcommand\MultipleBibSelectWarning[2][]{%
-    \amsrefs@warning{%
-        Multiple \string\bibselect 's found (only one
-        \string\bibselect\space per biblist environment is allowed)%
-    }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bblname}
-%    \begin{macrocode}
-\def\bblname{\jobname}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bib@dbfile}
-%    \begin{macrocode}
-\newread\bib@dbfile
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ReadBibData}
-%    \begin{macrocode}
-\newcommand{\ReadBibData}[1]{%
-    \IfFileExists{#1.ltb}{%
-        \openin\bib@dbfile=\@filef@und \relax
-    }{%
-        \IfFileExists{#1.ltx}{%
-            \openin\bib@dbfile=\@filef@und \relax
-        }{%
-            \IfFileExists{#1.tex}{%
-                \openin\bib@dbfile=\@filef@und \relax
-            }{%
-                \begingroup
-                    \NoBibDBFile{#1}%
-                    \let\ReadBibData@a\endgroup
-            }%
-        }%
-    }%
-    \ReadBibData@a
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\NoBibDBFile}
-%    \begin{macrocode}
-\def\NoBibDBFile#1{%
-    \amsrefs@warning{No data file #1.ltb (.ltx, .tex) found}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ReadBibData@a}
-%    \begin{macrocode}
-\def\ReadBibData@a{%
-    \ProvidesFile{\@filef@und}\relax
-    \begingroup
-        \let\star@bibdef\defer@bibdef
-        \ReadBibLoop
-    \endgroup
-    \closein\bib@dbfile
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ReadBibLoop}
-%    \begin{macrocode}
-\def\ReadBibLoop{%
-    \ifeof\bib@dbfile
-        \@xp\@gobble
-    \else
-        \read\bib@dbfile to\CurLine
-%    \end{macrocode}
-%    The \cs{@empty} is in case \cs{CurLine} is empty.
-%    \begin{macrocode}
-        \@xp\ReadBibLoop@a\CurLine\@empty\@nil
-    \fi
-    \ReadBibLoop
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ReadBibLoop@e}
-%    This traps top-level \cn{bib} commands.  Note that:
-%    \begin{itemize}
-%
-%    \item
-%    If \cs{CurLine} doesn't contain a complete \cn{bib} entry, the
-%    code chokes.
-%
-%    \item
-%    I \cn{bib} is not the very first non-space token in a line, it
-%    will not be recognized.
-%
-%    \end{itemize}
-%
-%    \begin{macrocode}
-\long\def\ReadBibLoop@a#1#2\@nil{%
-    \ifx\bib#1%
-        \CurLine % just exec it
-    \else
-%    \end{macrocode}
-%    We're not done yet.  The line may contain something like
-%    \cn{DefineName}, so we need to expand the first macro in the line
-%    and see if it starts with \cn{bib}.  But first we check to make
-%    sure that the token we're about to expand isn't \cn{endinput}.
-%    \begin{macrocode}
-        \ifx\endinput#1%
-            \let\ReadBibLoop\@empty
-        \else
-%    \end{macrocode}
-%    And this \cs{@empty} is for the admittedly unlikely case that
-%    \cs{CurLine} isn't empty, but its expansion is.
-%    \begin{macrocode}
-            \@xp\ReadBibLoop@b#1#2\@empty\@nil
-        \fi
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ReadBibLoop@b}
-%    \begin{macrocode}
-\long\def\ReadBibLoop@b#1#2\@nil{%
-    \ifx\bib#1%
-        \CurLine % just exec it
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macrocode}
-\let\bbl@out=\relax
-\let\bbl@write\@gobble
-\let\@open@bbl@file\relax
-\let\@close@bbl@file\relax
-%    \end{macrocode}
-%
-%    \begin{macro}{\OpenBBLFile}
-%    \begin{macrocode}
-\def\OpenBBLFile{%
-    \if@filesw
-        % Just use the next unused output stream
-        \count@\count17
-        \advance\count@\@ne
-        \ifnum\count@<\sixt@@n
-            \global\chardef\bbl@out=\count@
-            \immediate\openout\bbl@out=\bblname.bbl\relax
-            \global\let\@close@bbl@file\CloseBBLFile
-            \gdef\bbl@write{\immediate\write\bbl@out}%
-        \else
-            \ch@ck\count@\sixt@@n\write
-        \fi
-    \fi
-    \global\let\@open@bbl@file\relax
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\CloseBBLFile}
-%    \begin{macrocode}
-\def\CloseBBLFile{%
-    \immediate\closeout\bbl@out\relax
-    \global\let\@close@bbl@file\relax
-    \global\let\bbl@write\@gobble
-    \global\let\bbl@out\relax
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsection{Citation processing}
-%
-% \subsubsection{The \cs{citesel} structure}
-%
-%    The information used by \cn{cite} for key \texttt{moo} is stored in
-%    \cs{b@moo} in the form
-%    \begin{verbatim}
-%    \citesel{status1}{status2}{label}{year}{backref-info}
-%\end{verbatim}%
-%
-%    The first status flag is~1 if this key has already been cited
-%    earlier in the same document; 0~otherwise. This is used in some
-%    bibliography schemes to print a full list of author names for the first
-%    citation and an abbreviated author list for subsequent citations.
-%
-%    The second status flag is~1 if this key has already been used by a
-%    define-cite command (such as \cn{bib}); 0~otherwise. This makes it
-%    possible to issue a warning message as soon as the conflict is seen,
-%    on the first \lat/ run, instead of on a subsequent run during the
-%    processing of the \fn{.aux} file.
-%
-%    When an author/year citation scheme is in use, args 3 and~4 hold
-%    respectively author names and year. Otherwise arg~3 simply holds
-%    a cite label and arg~4 is empty.
-%
-%    And finally, arg~5 holds a list of backref pointers indicating the
-%    locations in the document where this entry has been cited.
-%
-%    \begin{macro}{\citesel@update}
-%    \begin{macrocode}
-\def\citesel@update#1#2#3#4#5#6{%
-    \gdef#6{\citesel 1#2{#3}{#4}{#5}}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citesel@number}
-%    \begin{macrocode}
-\def\citesel@number#1#2#3#4#5{#3}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citesel@year}
-%    \begin{macrocode}
-\def\citesel@year#1#2#3#4#5{#4}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citesel}
-%    \begin{macrocode}
-\let\citesel\citesel@number
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsubsection{The basic \cn{cite} command}
-%
-%    Here is the difference between the various optional forms of
-%    \cn{cite}:
-%    \begin{verbatim}
-%    \cite{xyz}        -> \cite@a\citesel{xyz}{}
-%                      -> \cite@bc\b@xyz\citesel{}
-%
-%    \cite{xyz}*{blub} -> \cite@a\citesel{xyz}{blub}
-%                      -> \cite@bc\b@xyz\citesel{blub}
-%
-%    \cite[blub]{xyz}  -> \cite@a\citesel{xyz}{blub}
-%                      -> \cite@bc\b@xyz\citesel{blub}
-%\end{verbatim}
-%
-%    Canceling the old \lat/ definition of \verb*'\cite ' prevents
-%    certain problems that could arise with the \pkg{showkeys} package.
-%    \begin{macrocode}
-\expandafter\let\csname cite \endcsname\relax
-%    \end{macrocode}
-%
-%    \begin{macro}{\cite}
-%    Need to handle the standard [...] option for compatibility's sake.
-%    \begin{macrocode}
-\renewcommand{\cite}[2][]{%
-    \if\cite@single#2,\@gobble \else\MultipleCiteKeyWarning{#2}{#1}\fi
-    \@ifempty{#1}{%
-        \cites@o{#2}%
-    }{%
-        \ObsoleteCiteOptionWarning
-        \cites@a{*{#1}}{#2}%
-    }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\MultipleCiteKeyWarning}
-%    \begin{macrocode}
-\def\MultipleCiteKeyWarning#1#2{%
-    \amsrefs@warning{%
-        Use of \string\cites\space is recommended instead of %
-        \string\cite\space\MessageBreak
-        for multiple cites '#1'}%
-    \@ifnotempty{#2}{%
-        \amsrefs@warning{Star option requires \string\citelist\space here}%
-    }%
-    \global\let\MultipleCiteKeyWarning\@gobbletwo
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ObsoleteCiteOptionWarning}
-%    \begin{macrocode}
-\def\ObsoleteCiteOptionWarning{%
-    \amsrefs@warning{%
-        The form \string\cite{...}*{...} is recommended\MessageBreak
-        instead of \string\cite[...]{...}}%
-    \global\let\ObsoleteCiteOptionWarning\@empty
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@single}
-%    \begin{macrocode}
-\edef\cite@single#1,#2{\iffalse{\fi\iffalse{\fi\string}#2.\string}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cites@o}
-%    \begin{macrocode}
-\def\cites@o#1{\star@{\cites@oo{#1}}{}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cites@oo}
-%    \begin{macrocode}
-\def\cites@oo#1#2{\@ifempty{#2}{\cites@a{}{#1}}{\cites@a{*{#2}}{#1}}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cites@a}
-%    \begin{macrocode}
-\def\cites@a#1#2{%
-    \begingroup
-        \toks@{\endgroup \cites@b{#1}}%
-        \vdef\@tempa{#2}%
-        \edef\@tempa{%
-            \the\toks@ \@firstofone{\@xp\zap@space\@tempa} \@empty
-        }%
-        \@tempa,\@empty
-        \edef\@tempa{\endgroup\@nx\citelist{\the\toks@}}%
-        \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cites@b}
-%    \begin{macrocode}
-\def\cites@b#1#2,#3{%
-    \begingroup
-        \toks@{\InnerCite{#2}#1}%
-        \ifx\@empty#3\@xp\@gobble\fi
-        \cites@c#3%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cites@c}
-%    \begin{macrocode}
-\def\cites@c#1,#2{%
-    \add@toks@{\InnerCite{#1}}%
-    \ifx\@empty#2\@xp\@gobble\fi
-    \cites@c#2%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citeleft}
-%    \begin{macro}{\citeright}
-%    \begin{macro}{\citemid}
-%    \begin{macro}{\citepunct}
-%    These variables are named to follow the precedent set by
-%    Arseneau's \pkg{cite} package. \cs{citemid} is used to separate a
-%    citation label from additional information such as \qq{Theorem
-%    4.9}. \cs{citepunct} is used to separate multiple cites, unless
-%    one of the cites has additional associated information, in which
-%    case \cs{CiteAltPunct} is used.
-%    \begin{macrocode}
-\def\citeleft{[}
-\def\citeright{]}
-%    \end{macrocode}
-%    \begin{macrocode}
-\def\citemid{,\penalty9999 \space}
-\def\citepunct{,\penalty9999 \hskip.13em plus.1em minus.05em\relax}
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%    \end{macro}
-%    \end{macro}
-%
-%    \begin{macro}{\citeAltPunct}
-%    When a citation list contains one or more citations with optional
-%    arguments, we replace \cs{citemid} by \cs{CiteAltPunct}.
-%    \begin{macrocode}
-\def\citeAltPunct{;\ }
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citeform}
-%    This is used for formatting the citation label.  It can be used,
-%    for example, to bolden the labels (as in \cls{amsbook} and
-%    \cls{amsproc}) or to do more elaborate things such as convert the
-%    numbers to roman numerals.  By default, it's just a no-op.
-%
-%    Note that currently there is no corresponding macro for changing
-%    the formatting of \cn{cite}'s optional argument.  This is
-%    probably a bug.
-%    \begin{macrocode}
-\providecommand{\citeform}{\@firstofone}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citelist}
-%    The \cs{@citelist} indirection turns out to be helpful in
-%    implementing the \cs{ocites} command for the \opt{author-year}
-%    option.
-%    \begin{macrocode}
-\DeclareRobustCommand{\citelist}{\@citelist}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@citelist}
-%    \begin{macrocode}
-\def\@citelist#1{%
-    \leavevmode
-    \begingroup
-        \@citestyle
-        \citeleft\nopunct   % suppress first \citepunct
-        \cite@begingroup
-            \in@*{#1}%
-            \ifin@
-                \let\citepunct\citeAltPunct
-            \fi
-            \let\cite@endgroup\@empty
-            \cites@init
-            \def\citeleft{\@addpunct{\citepunct}}%
-            \let\citeright\ignorespaces
-            \def\cite{\InnerCite}%
-            \process@citelist{#1}%
-        \endgroup
-        \citeright
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@citestyle}
-%    Reset the font to an upright, medium font (e.g. \fnt{cmr}), per
-%    AMS style.  Also set $\cs{mathsurround} = 0\,\mathrm{pt}$ just in
-%    case there are subscripts in the cite numbers (from
-%    \cn{etalchar}, for example).
-%    \begin{macrocode}
-\providecommand{\@citestyle}{\m@th\upshape\mdseries}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@begingroup}
-%    Grouping that encloses an entire cite block (a single cite or a
-%    list of cites).
-%    \begin{macrocode}
-\def\cite@begingroup{\begingroup\let\cite@begingroup\relax}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@endgroup}
-%    \begin{macrocode}
-\let\cite@endgroup\endgroup
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cites@init}
-%    This needs to be called at the beginning of a list of cites to
-%    reset a few things.
-%    \begin{macrocode}
-\def\cites@init{%
-    \gdef\prev@names{???}%
-    \let\cites@init\@empty
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\InnerCite}
-%    \begin{macrocode}
-\newcommand{\InnerCite}[1]{\star@{\cite@a\citesel{#1}}{}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@a}
-%    The job of \cs{cite@a} is to convert the cite key to all catcode-12
-%    characters and remove any spaces it might contain before passing
-%    it on to \cs{cite@b}.
-%
-%    \MacroArgs
-%    \macroarg{1}{\cs{CITESEL}}
-%    \macroarg{2}{citekey}
-%    \begin{macrocode}
-\def\cite@a#1#2{%
-    \BackCite{#2}%
-    \cite@begingroup
-        \cites@init
-        \let\citesel#1\relax
-        \ifx\citesel\citesel@author
-            \let\citeleft\@empty
-            \let\citeright\@empty
-        \fi
-        \begingroup
-            \toks@{\endgroup \cite@b}%
-            \vdef\@tempa{#2}%
-            \edef\@tempa{%
-                \the\toks@{\@firstofone{\@xp\zap@space\@tempa} \@empty}%
-            }%
-        \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@b}
-%    \MacroArgs
-%    \macroarg{1}{citekey}
-%    \macroarg{2}{star-optional-arg}
-%    \begin{macrocode}
-\def\cite@b#1#2{%
-    \@xp\cite@bc\csname b@#1\@xp\endcsname {#1}{#2}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@bc}
-%    If it's uninitialized, plug in an empty cite structure.
-%    \cs{cite@bc} should be executed only once for a given instance of a
-%    cite key. All further processing should go through \cs{cite@cj}.
-%    \begin{macrocode}
-\def\cite@bc#1#2{%
-    \ifx#1\@@undefined \global\let#1\relax \fi
-    \ifx#1\relax       \global\let#1\empty@cite \fi
-    \@xp\cite@nobib@test#1{}{}{}{}\@nil#1%
-    \cite@cj#1%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\empty@cite}
-%    \begin{macrocode}
-\def\empty@cite{\citesel 00{}{}{}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@nobib@test}
-%    If arg 4 is empty, it means there wasn't any \cn{bib} command that
-%    defined a valid label.
-%
-%    \MacroArgs
-%    \macroarg{1}{\cs{citesel}}
-%    \macroarg{2}{cited?}
-%    \macroarg{3}{used?}
-%    \macroarg{4}{label}
-%    \macroarg{5}{backrefs}
-%    \macroarg{6}{\cs{b@}citekey}
-%    \begin{macrocode}
-\def\cite@nobib@test#1#2#3#4#5\@nil#6{%
-    \@ifempty{#4}{%
-        \G@refundefinedtrue
-        \UndefinedCiteWarning#6%
-        \xdef#6{\@nx\citesel #2#3{%
-            \@nx\CitePrintUndefined{\extr@cite#6}}{}{}}%
-    }{}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\UndefinedCiteWarning}
-%    This is a copy of the standard warning from \cs{@citex}.
-%    \begin{macrocode}
-\def\UndefinedCiteWarning#1{%
-    \@latex@warning{%
-        Citation `\extr@cite#1' on page \thepage\space undefined}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\CitePrintUndefined}
-%    \begin{macrocode}
-\DeclareRobustCommand{\CitePrintUndefined}[1]{%
-    \begingroup\fontshape{n}\fontseries\mddefault \ttfamily ?#1\endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\CPU@normal}
-%    This has to be a \cs{let}, not a \cs{def}.
-%    \begin{macrocode}
-\let\CPU@normal\CitePrintUndefined
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@cj}
-%    \MacroArgs
-%    \macroarg{1}{\cs{b@}citekey}
-%    \macroarg{2}{star-optional-arg}
-%    \begin{macrocode}
-\def\cite@cj#1#2{%
-        \leavevmode
-            \begingroup
-                \cite@cb#1% write info to aux file
-                \ar@SK@cite#1%
-                \@citeleft
-                \ar@hyperlink{#1}%
-                \@ifnotempty{#2}{\citemid{#2}}%
-                \citeright
-            \endgroup
-            \ignorespaces % ignore spaces inside \citelist
-        \cite@endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@citeleft}
-%    The following definition provides some indirection that helps to
-%    deal with author-year object cites.
-%    \begin{macrocode}
-\def\@citeleft{\citeleft}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@cb}
-%    \begin{macrocode}
-\def\cite@cb#1{%
-    \if@filesw
-        \immediate\write\@auxout{\string\citation{\extr@cite#1}}%
-    \fi
-%    \end{macrocode}
-%    Define \cs{citesel} to make \cs{b@whatever} update itself.
-%    \begin{macrocode}
-    \begingroup
-        \let\citesel\citesel@update
-        #1#1%
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\extr@cite}
-%    Extract \emph{citekey} from \cs{b@}\emph{citekey}.
-%    \begin{macrocode}
-\def\extr@cite{\@xp\@gobblethree\string}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsubsection{Fancier \cn{cite} commands}
-%
-%    \begin{macro}{\cites}
-%    A list of simple cites. Make it robust in case used inside a figure
-%    caption. (But then also, by the way, listoffigures should provide
-%    special handling.)
-%    \begin{macrocode}
-\DeclareRobustCommand{\cites}{\cites@a{}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citen}
-%    This is just to keep the showkeys package from clobbering the wrong
-%    part of our definition of \cn{cite}:
-%    \begin{macrocode}
-\providecommand{\citen}{\ocite}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ycite}
-%    \cn{cite} gets redefined inside of \cn{citelist}, so we need to
-%    \cs{def} \cn{ycite} here instead of just \cs{let}ting everything
-%    to \cn{cite}.
-%    \begin{macrocode}
-\def\ycite{\cite}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ycites}
-%    \begin{macrocode}
-\let\ycites\cites
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ocite}
-%    \begin{macrocode}
-\let\ocite\ycite
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ocites}
-%    \begin{macrocode}
-\let\ocites\cites
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\fullcite}
-%    \begin{macrocode}
-\let\fullcite\cite
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\fullocite}
-%    \begin{macrocode}
-\let\fullocite\ocite
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citeauthor}
-%    \begin{macrocode}
-\let\citeauthor\ycite
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citeauthory}
-%    \begin{macrocode}
-\let\citeauthory\ycite
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsubsection{The \cn{nocite} command}
-%
-%    \begin{macro}{\nocite}
-%    \begin{macrocode}
-\renewcommand{\nocite}[1]{\othercites{#1}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\othercites}
-%    \begin{macrocode}
-\newcommand{\othercites}[1]{%
-    \cite@begingroup
-        \let\cite@endgroup\@empty
-        \def\citelist{\othercitelist}%
-        \cites{#1}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\othercitelist}
-%    \begin{macrocode}
-\newcommand{\othercitelist}[1]{%
-    \cite@begingroup
-        \let\cite@endgroup\@empty
-        \cites@init
-        \let\citeleft\relax
-        \let\citeright\ignorespaces
-        \def\InnerCite{\OtherCite}%
-        \def\cite@cj ##1##2{%
-            \begingroup
-                \@xp\citesel##1%
-                \cite@cb ##1%
-            \endgroup
-%    \end{macrocode}
-%    If we detect |\nocite{*}|, we globally alias
-%    \cs{selective@bibdef} to \cs{copy@bibdef} so that all succeeding
-%    \cn{bibselect} commands act like \cn{bibselect*}.
-%    \begin{macrocode}
-            \@xp\ifx\csname b@*\endcsname ##1%
-                \global\let\selective@bibdef\copy@bibdef
-            \fi
-            \ignorespaces
-            \cite@endgroup
-        }%
-    #1\relax
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\OtherCite}
-%    \begin{macrocode}
-\def\OtherCite#1{\cite@a\citesel@other{#1}{}{}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citesel@other}
-%    \begin{macrocode}
-\def\citesel@other#1#2#3#4#5#6{}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\b@*}
-%    This provides a dummy definition to keep things like |\nocite{*}|
-%    from generating an error message.
-%    \begin{macrocode}
-\@namedef{b@*}{\citesel 11{*}{*}{*}}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsubsection{Citation sorting}
-%
-%    \begin{macro}{\process@citelist@sorted}
-%    \begin{macrocode}
-\def\process@citelist@sorted#1{%
-    \ifx\citesel\citesel@number
-        \cite@sorted@s #1\cite@sorted@e
-    \else
-        \NonNumericCiteWarning
-        \process@citelist@unsorted{#1}%
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\NonNumericCiteWarning}
-%    \begin{macrocode}
-\def\NonNumericCiteWarning{%
-    \amsrefs@warning{%
-        Unable to confirm that cite keys are numeric: not sorting%
-    }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\process@citelist@unsorted}
-%    \begin{macrocode}
-\def\process@citelist@unsorted#1{%
-    \ignorespaces#1\relax
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\process@citelist}
-%    By default, citation lists will be sorted.
-%    \begin{macrocode}
-\let\process@citelist\process@citelist@sorted
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\CPU@sort}
-%    By defining this as \TeX's maxint, undefined cites migrate to the
-%    end of a sorted list.
-%    \begin{macrocode}
-\def\CPU@sort#1{2147483647}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@sorted@s}
-%    Here's where we prepare to sort the citations and (optionally)
-%    compress ranges.
-%    \begin{macrocode}
-\def\cite@sorted@s{%
-    \begingroup
-        \let\CitePrintUndefined\CPU@sort
-        \let\cite@cjs\cite@cj
-        \let\cite@cj\cite@compress
-        \begingroup
-            \toks@\@emptytoks
-            \let\cite@cj\cite@sort
-            \ignorespaces
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@sorted@e}
-%    \begin{macrocode}
-\def\cite@sorted@e{%
-        \@xp\endgroup
-        \the\toks@
-        \cite@dash
-        \prev@cite
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@sort}
-%    This is essentially an insertion sort.  I think.
-%
-%    \MacroArgs
-%    \macroarg{1}{\cs{b@}citekey}
-%    \macroarg{2}{optional arg}
-%    \begin{macrocode}
-\def\cite@sort#1#2{%
-    \safe@set\@tempcnta#1% highest number so far
-    \toks@{\cite@cj#1{#2}}%
-    \@temptokena\toks@
-    \let\cite@cj\cite@sort@a
-    \ignorespaces
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@sort@a}
-%    \begin{macrocode}
-\def\cite@sort@a#1#2{%
-    \safe@set\@tempcntb#1%
-    \ifnum\@tempcntb > \@tempcnta
-        \add@toks@{\cite@cj#1{#2}}%
-        \@tempcnta\@tempcntb
-    \else
-        \let\cite@cj\cite@sort@b
-        \toks@\@emptytoks
-        \def\@tempb{\add@toks@{\cite@cj#1{#2}}}%
-        \the\@temptokena
-        \@tempb
-        \let\cite@cj\cite@sort@a
-    \fi
-    \@temptokena\toks@
-    \ignorespaces
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@sort@b}
-%    \begin{macrocode}
-\def\cite@sort@b#1#2{%
-    \safe@set\count@#1%
-    \ifnum\@tempcntb < \count@
-        \@tempb
-        \let\@tempb\@empty
-    \fi
-    \add@toks@{\cite@cj#1{#2}}%
-    \ignorespaces
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsubsection{Range compression}
-%
-%    When the time comes to apply compression, we have at our disposal a
-%    list of internal cite calls that looks like this:
-%    \begin{verbatim}
-%    \cite@cj\b@aaa{opta}\cite@cj\b@bbb{optb}...\cite@cj\b@zzz{optz}
-%\end{verbatim}
-%    where
-%    \[ \ncn{b@aaa} < \ncn{b@bbb} < \cdots < \ncn{b@zzz} \]
-%    and the \texttt{opt} arguments are possibly null.
-%    To print the citations while collapsing sequences of 3 or more
-%    contiguous numbers into ranges of the form $n$--$m$, we bind
-%    \cs{cite@cj} to a suitably clever function and then execute the
-%    list.  In the absence of optional arguments, here's the algorithm:
-%
-% \begin{enumerate}
-% \item[Begin.]
-%    Enter state~0.  This is done by \cs{cite@sorted@s}.
-% \item[State 0.]
-%^^A    This is the initial state.
-%    The current citation is the beginning
-%    of a range (possibly a singleton range).  Print it.  Then, set
-%    $\mathit{prevnum} := \mathit{number}$ and enter state~1.
-%
-% \item[State 1.]
-%    The current citation might be the second element of a range.
-%    \begin{enumerate}
-%    \item[Case a)]
-%    $\mathit{number} = \mathit{prevnum} + 1$. Then the current
-%    item is definitely the second element of a range.  It might be
-%    the last element of the range, but we won't know until we examine
-%    the following citation.  So, save the current citation in
-%    \cs{prev@cite}, set $\mathit{prevnum} := \mathit{number}$, and go
-%    to state~2.
-%
-%    \item[Case b)]
-%    $\mathit{number} \ne \mathit{prevnum} + 1$.  The current citation
-%    is the beginning of a new range.  Print it, set
-%    $\mathit{prevnum} := \mathit{number}$ and remain in state~1.
-%    (This is essentially identical to stage~0.)
-%
-%    \end{enumerate}
-%
-% \item[State 2.]\leavevmode
-%    The current citation might be the third (or later) element of a
-%    range.
-%    \begin{enumerate}
-%   \item[Case a)]
-%    $\mathit{number} = \mathit{prevnum} + 1$.  The current element is
-%    definitely part of a range.  It might be the last
-%    element of the range, but again we won't know until we examine
-%    the following citation.  Save the current citation
-%    in \cs{prev@cite} and set $\mathit{prevnum} := \mathit{number}$.
-%    Remain in state~2.
-%
-% \item[Case b)]
-%    $\mathit{number} \ne \mathit{prevnum} + 1$.  The previous
-%    citation was the end of a range and the current citation is the
-%    beginning of a new range.  Print a dash followed by
-%    \cs{prev@cite}, then set $\mathit{prevnum} := \mathit{number}$
-%    and enter state~1.
-%
-%    \end{enumerate}
-%
-% \item[End.] If \cs{prev@cite} is not empty, print it, preceded by a
-%    dash if we were in the middle of a range.  (This is done by
-%    \cs{cite@sorted@e}.)
-%
-% \end{enumerate}
-%
-%    The presence of optional arguments complicates things
-%    somewhat, since a citation with an optional argument should never
-%    participate in range compression.  In other words, when we come
-%    across an optional argument, we should finish off the preceding
-%    range, print the current citation, and then return to the initial
-%    state.  More precisely, here are the actions taken in each state
-%    when there is an optional argument:
-%
-%    \begin{enumerate}
-%
-%    \item[State 0.]
-%    Print the current citation and remain in state~0.
-%
-%    \item[State 1.]
-%    Print the current citation and return to state~0.
-%
-%    \item[State 2.]
-%    Print a dash followed by \cs{prev@cite}.  Then print the current
-%    citation and return to state~0.
-%
-%    \end{enumerate}
-%
-%    \begin{macro}{\prev@cite}
-%    \begin{macrocode}
-\let\prev@cite\@empty
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\prev@cite@cb}
-%    There's one further complication: Even though we're suppressing
-%    some of the citation numbers, we need to make sure that each
-%    citation is recorded in the \fn{.aux} file.  So, in case~2a,
-%    before we overwrite \cs{prev@cite}, we first invoke
-%    \cs{prev@cite@cb} to record the previous citation (if any).
-%    \begin{macrocode}
-\def\prev@cite@cb{%
-    \ifx\@prev@cite\@empty
-    \else
-        \begingroup
-            \def\cite@print##1##2{%
-                \cite@cb##1%
-            }%
-            \prev@cite
-        \endgroup
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@print}
-%    \begin{macrocode}
-\def\cite@print#1#2{%
-    \begingroup
-        \let\CitePrintUndefined\CPU@normal
-        \cite@cjs#1{#2}%
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@dash}
-%    Ok, I lied.  There was more than one further complication.
-%    Suppose that when we hit the end of the list, we're in state~2.
-%    We need to know whether to output a dash or a comma.  (For
-%    example, both the sequences $[2, 3]$ and $[1, 2, 3]$ will end in
-%    state~2 with $\mathit{prevcite} = 3$, but in the former case we
-%    want a comma before the~3 and in the latter case we want a dash.)
-%    So, rather than printing the dash explicitly, we use
-%    \cs{cite@dash} to keep track of whether a dash is needed.
-%    \begin{macrocode}
-\let\cite@dash\@empty
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\print@one@dash}
-%    \begin{macrocode}
-\def\print@one@dash{%
-    \textendash \nopunct
-    \let\cite@dash\@empty
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    State 0, 1 and~2 each correspond to a different binding for
-%    \cs{cite@cj}. Here they are.  The role of $\mathit{prevnum}$ is
-%    played by \cs{@tempcnta}, with \cs{@tempcntb} assisting as
-%    $\mathit{number}$ at times.
-%
-%    \begin{macro}{\cite@compress}
-%    State~0:
-%    \begin{macrocode}
-\def\cite@compress#1#2{%
-    \cite@print#1{#2}%
-    \@ifempty{#2}{%
-        \safe@set\@tempcnta#1%
-        \let\cite@cj\cite@compress@a
-    }{}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@compress@a}
-%    State~1:
-%    \begin{macrocode}
-\def\cite@compress@a#1#2{%
-    \@ifempty{#2}{%
-        \advance\@tempcnta\@ne
-        \safe@set\@tempcntb#1%
-        \ifnum\@tempcnta=\@tempcntb
-            \def\prev@cite{\cite@print#1{}}%
-            \let\cite@cj\cite@compress@b
-        \else
-            \cite@print#1{}%
-            \@tempcnta\@tempcntb
-        \fi
-    }{%
-        \cite@print#1{#2}%
-        \let\cite@cj\cite@compress
-    }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@compress@b}
-%    State~2:
-%    \begin{macrocode}
-\def\cite@compress@b#1#2{%
-    \@ifempty{#2}{%
-        \advance\@tempcnta\@ne
-        \safe@set\@tempcntb#1%
-        \ifnum\@tempcnta=\@tempcntb
-            \let\cite@dash\print@one@dash
-            \prev@cite@cb
-            \def\prev@cite{\cite@print#1{}}%
-        \else
-            \cite@dash
-            \prev@cite
-            \let\prev@cite\@empty
-            \cite@print#1{}%
-            \@tempcnta\@tempcntb
-            \let\cite@cj\cite@compress@a
-        \fi
-    }{%
-        \cite@dash
-        \prev@cite
-        \let\prev@cite\@empty
-        \cite@print#1{#2}%
-        \let\cite@cj\cite@compress
-    }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsubsection{Munging the \fn{.aux} file}
-%
-%    \begin{macro}{\bibcite}
-%    When processing the \fn{.aux} file at begin-document, this is what
-%    \cs{bibcite} will do:
-%    \begin{macrocode}
-\def\bibcite#1{\@xp\bibcite@a\csname b@#1\endcsname}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bibcite@a}
-%    \MacroArgs
-%    \macroarg{1}{\cs{b@}citekey}
-%    \macroarg{2}{\embrace{\emph{label}}\embrace{} or \embrace{\emph{author}}\embrace{\emph{year}}}
-%    \begin{macrocode}
-\def\bibcite@a#1#2{%
-%    \end{macrocode}
-%    Most of the time arg 1 will already be defined, by an earlier
-%    \cs{citedest} command in the \fn{.aux} file. Then we just need to change
-%    the number.
-%    \begin{macrocode}
-    \ifx\relax#1%
-        \gdef#1{\citesel 00#2{}}%
-    \else
-        \begingroup
-            \@xp\bibcite@b\@xp#1#1{#2}%
-        \endgroup
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bibcite@b}
-%
-%    \MacroArgs
-%    \macroarg{1}{\cs{b@}citekey}
-%    \macroarg{2}{\cs{citesel}}
-%    \macroarg{3}{cited?}
-%    \macroarg{4}{used?}
-%    \macroarg{5}{label}
-%    \macroarg{6}{year}
-%    \macroarg{7}{backrefs}
-%    \macroarg{8}{\embrace{\emph{newlabel}}\embrace{\emph{newyear}}}
-%    \begin{macrocode}
-\def\bibcite@b#1#2#3#4#5#6#7#8{\gdef#1{\citesel#3#4#8{#7}}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citedest}
-%    The \cs{citedest} command goes into the \fn{.aux} file to provide
-%    back-reference support.
-%    \begin{macrocode}
-\newcommand{\citedest}[1]{\@xp\cite@dest\csname b@#1\endcsname}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@dest}
-%    \begin{macrocode}
-\def\cite@dest#1{%
-    \ifx\relax#1%
-        \gdef#1{\citesel 00{}{}{}}%
-    \fi
-    \@xp\cite@dest@b\@xp#1#1%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cite@dest@b}
-%    \MacroArgs
-%    \macroarg{1}{\cs{b@}citekey}
-%    \macroarg{2}{\cs{citesel}}
-%    \macroarg{3}{cited?}
-%    \macroarg{4}{used?}
-%    \macroarg{5}{label}
-%    \macroarg{6}{year}
-%    \macroarg{7}{backrefs}
-%    \macroarg{8}{\embrace{\emph{more backrefs}}}
-%    \begin{macrocode}
-\def\cite@dest@b#1#2#3#4#5#6#7#8{%
-    \@ifempty{#7}{%
-        \def#1{\citesel #3#4{#5}{#6}{{#8}}}%
-    }{%
-        \gdef#1{\citesel #3#4{#5}{#6}{#7,{#8}}}%
-    }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsubsection{Back references}
-%
-%    \begin{macro}{\ifBR@verbose}
-%    \begin{macrocode}
-\@ifundefined{ifBR@verbose}{\let\ifBR@verbose\iffalse \let\fi\fi}{}%
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\BackCite}
-%    \begin{macrocode}
-\let\BackCite\@gobble
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\back@cite}
-%    \begin{macrocode}
-\def\back@cite#1{%
-    \ifBR@verbose
-        \PackageInfo{backref}{back cite \string `\extr@cite#1'}%
-    \fi
-    \Hy@backout{#1}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\print@backrefs}
-%    In an AMS-style bibliography, the backref info might follow the
-%    final period of the reference, or it might follow some
-%    \emph{Mathematical Reviews} info, without a period.
-%    \begin{macrocode}
-\def\print@backrefs#1{%
-    \space\SentenceSpace$\uparrow$\csname br@#1\endcsname
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintBackRefs}
-%    \begin{macrocode}
-\let\PrintBackRefs\@gobble
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsubsection{\pkg{hyperref} and \pkg{showkeys} support}
-%
-%    \begin{macro}{\ar@hyperlink}
-%    \begin{macrocode}
-\def\ar@hyperlink#1{\hyper@@link [cite]{}{cite.\extr@cite#1}{#1}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ar@SK@cite}
-%    \begin{macrocode}
-\def\ar@SK@cite#1{\@bsphack\@xp\SK@\@xp\SK@@ref\@xp{\extr@cite#1}\@esphack}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    Turn off \pkg{hyperref} and \pkg{showkeys} support if those
-%    packages don't appear to be loaded.
-%    \begin{macrocode}
-\AtBeginDocument{%
-    \@ifundefined{hyper@@link}{%
-        \let\ar@hyperlink\@firstofone
-        \let\hyper@anchorstart\@gobble
-        \let\hyper@anchorend\relax
-    }{}%
-    \@ifundefined{SK@@label}{%
-        \let\ar@SK@cite\@gobble
-        \let\SK@@label\@gobble
-        \let\SK@\@gobbletwo
-    }{}%
-}
-%    \end{macrocode}
-%
-% \subsection{Lexical structure of names}
-%
-%    Before we can begin parsing names, we need to give some thought
-%    to the lexical structure of names.  For the remainder of this
-%    document, when we refer to a ``name'' and especially when we
-%    speak of a name as a macro argument, we assume that the only
-%    tokens contained in the name are
-%    \begin{itemize}
-%
-%    \item
-%    letters and punctuation (i.e., characters with catcode 11 or~12),
-%
-%    \item
-%    ties (the token |~|$_{13}$),
-%
-%    \item
-%    accent commands, such as |\"| or |\k|,
-%
-%    \item
-%    text symbol macros, such as |\i|, |\ae| or |\cprime|,
-%
-%    \item
-%    grouping characters (braces).
-%
-%    \end{itemize}
-%
-%    In addition to their normal function of delimiting macro
-%    arguments, braces inside names have the following special
-%    functions:
-%    \begin{enumerate}
-%
-%    \item They are used to indicate that multiple characters should
-%    be considered a single ``compound'' character when extracting
-%    initials.  For example, |Yuri| becomes |Y.|, but |{Yu}ri| becomes
-%    |Yu.|
-%
-%    \label{initial-braces}
-%    An important aspect of this use of braces is that it only applies
-%    to the first characters of a given name.  As we'll see below,
-%    this has important implications for our parsing code, which must
-%    preserve braces at the beginning of given names, but can be more
-%    cavalier with braces in other positions.
-%
-%    \item
-%    Spaces and commas are ordinarily interpreted as name separators,
-%    rather than name components.  Similarly, periods and hyphens
-%    usually have a special interpretation.  All these characters can
-%    be stripped of their special meanings by putting them within
-%    braces.
-%
-%    \end{enumerate}
-%
-%    In practice, it might be possible to insert other tokens (such as
-%    macros) into names as long as they either (a)~are non-expandable
-%    or (b)~expand into a series of tokens of the above enumerated
-%    types.  However, in such cases it will probably be safer to
-%    declare the macro in question as either a text accent or a text
-%    symbol.
-%
-% \subsubsection{Text accents}
-%
-%    Syntactically, a text accent is a macro that takes a single,
-%    undelimited argument, i.e, it has a ``prototype'' of
-%    |macro:#1->|.  Semantically, the implication is that it takes a
-%    letter (the \emph{base}) as an argument and produces a glyph that
-%    for certain purposes can be considered equivalent to the
-%    base (see the discussion of stem comparison on
-%    page~\pageref{stem-comparison}).\footnote{Note that this is meant
-%    to be a pragmatic definition for the purposes of this package.
-%    No claim is made to greater generality.}
-%
-%    \begin{macro}{\amsrefs@textaccents}
-%    This will contain a list of accent commands in standard \LaTeX\
-%    format (i.e., separated by the token \cs{do}).  For example,
-%    after registering the \cn{"} and \cn{'} accents, it will contain
-%    \begin{verbatim}
-%        \do \"\do \'
-%\end{verbatim}
-%    \begin{macrocode}
-\let\amsrefs@textaccents\@empty
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\DeclareNameAccent}
-%    \MacroArgs
-%    \macroarg{1}{accent}
-%    \begin{macrocode}
-\def\DeclareNameAccent{%
-    \@lappend\amsrefs@textaccents
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    Here are all the standard \LaTeX\ accents, as well as a few
-%    nonstandard accents from the \pkg{mathscinet} package.
-%    \begin{macrocode}
-\DeclareNameAccent\"
-\DeclareNameAccent\'
-\DeclareNameAccent\.
-\DeclareNameAccent\=
-\DeclareNameAccent\^
-\DeclareNameAccent\`
-\DeclareNameAccent\~%
-\DeclareNameAccent\b
-\DeclareNameAccent\c
-\DeclareNameAccent\d
-\DeclareNameAccent\H
-\DeclareNameAccent\k
-\DeclareNameAccent\r
-\DeclareNameAccent\t
-\DeclareNameAccent\u
-\DeclareNameAccent\v
-%    \end{macrocode}
-%    From \pkg{mathscinet}:
-%    \begin{macrocode}
-\DeclareNameAccent\utilde
-\DeclareNameAccent\uarc
-\DeclareNameAccent\dudot
-\DeclareNameAccent\lfhook
-\DeclareNameAccent\udot
-\DeclareNameAccent\polhk
-\DeclareNameAccent\soft
-%    \end{macrocode}
-%    \cn{etalchar} and \cn{etaltext} are sort of accent-like if you
-%    look at them in the right light.
-%    \begin{macrocode}
-\DeclareNameAccent\etalchar
-%\DeclareNameAccent\etaltext
-%    \end{macrocode}
-%
-% \subsubsection{Text symbols}
-%
-%    Syntactically, a text symbol is a macro with a empty parameter
-%    text, i.e., a prototype of |macro:->|.  Semantically, it's a
-%    letter-like glyph that should not be considered equivalent
-%    to any other glyph or group of glyphs.  In addition, it may exist
-%    in both upper- and lowercase variants, unlike text accents, where
-%    we consider the case to be an attribute of the base letter, not
-%    of the accent.\footnote{As with text accents, this is not
-%    intended as a fully general definition.}
-%
-%    \begin{macro}{\amsrefs@textsymbols}
-%    This is analogous to \cs{amsrefs@textaccents} but a little more
-%    complicated due to the need to store lowercase equivalents. It
-%    consists of a list of double entries of the form
-%    \begin{verbatim}
-%        \do \symbol \do \lcsymbol
-%\end{verbatim}
-%    which means that \cs{symbol} is a text symbol whose corresponding
-%    lowercase version is \cs{lcsymbol}.  (Note that nothing is
-%    implied about whether \cs{symbol} is to be considered as
-%    uppercase or lowercase.)  For example, in
-%    \begin{verbatim}
-%        \do \ae \do \ae \do \OE \do \oe
-%\end{verbatim}
-%    the first four tokens indicate that \cn{ae} is a text symbol with
-%    lowercase equivalent \cn{ae}, while the last four tokens indicate
-%    that \cn{OE} is a text symbol with lowercase equivalent \cn{oe}.
-%    This scheme is somewhat redundant, but pleasingly simple.
-%
-%    This also duplicates some of the information in \cs{@uclclist},
-%    but it seems safer to do this than to modify \cs{@uclclist}.
-%    \begin{macrocode}
-\let\amsrefs@textsymbols\@empty
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\DeclareNameSymbol}
-%    \MacroArgs
-%    \macroarg{1}{symbol}
-%    \macroarg{2}{lowercase}
-%    \begin{macrocode}
-\def\DeclareNameSymbol#1#2{%
-    \@lappend\amsrefs@textsymbols#1%
-    \@lappend\amsrefs@textsymbols#2%
-    \ifx#1#2\else
-        \@lappend\amsrefs@textsymbols#2%
-        \@lappend\amsrefs@textsymbols#2%
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    Here are the standard \LaTeX\ and \pkg{mathscinet} text
-%    symbols.
-%
-%    \label{anomalies}
-%    Note that \cn{i} and \cn{j} are anomalous in being syntactically
-%    like text symbols, but semantically more like text accents.
-%    \begin{macrocode}
-\DeclareNameSymbol\i\i
-\DeclareNameSymbol\j\j
-\DeclareNameSymbol\AE\ae
-\DeclareNameSymbol\OE\oe
-\DeclareNameSymbol\O\o
-\DeclareNameSymbol\DH\dh
-\DeclareNameSymbol\DJ\dj
-\DeclareNameSymbol\L\l
-\DeclareNameSymbol\NG\ng
-\DeclareNameSymbol\SS\ss
-\DeclareNameSymbol\TH\th
-%    \end{macrocode}
-%    From \pkg{mathscinet}:
-%    \begin{macrocode}
-\DeclareNameSymbol\Dbar\dbar
-\DeclareNameSymbol\lasp\lasp
-\DeclareNameSymbol\rasp\rasp
-\DeclareNameSymbol\cprime\cprime
-\DeclareNameSymbol\cdprime\cdprime
-\DeclareNameSymbol\bud\bud
-\DeclareNameSymbol\cydot\cydot
-%    \end{macrocode}
-%    |~| can be considered a text symbol in much the same way that
-%    \cn{etalchar} can be considered an accent.
-%    \begin{macrocode}
-\DeclareNameSymbol~~%
-%    \end{macrocode}
-%
-% \subsubsection{\cs{edef}-like macros for names}
-%    The following macros all behave sort of like \cs{edef}, in the
-%    sense that
-%    \begin{verbatim}
-%    \X@edef\foo{name}
-%\end{verbatim}
-%    defines \cs{foo} to be the result of expanding |name| and
-%    applying a certain transformation to it.
-%
-%    \begin{macro}{\normalize@edef}
-%    This converts accents in the name to a normalized form where the
-%    accent and its argument are surrounded by braces.  E.g., after
-%    \begin{verbatim}
-%    \normalize@edef\cs{P\'olya}
-%\end{verbatim}
-%    \cs{cs} will contain |P{\'o}lya|. (This might result in a
-%    redundant layer of braces if the original text contained, say,
-%    ``\verb+P{\'o}lya+'', but that's ok.)  This lets us extract the
-%    first $n$ characters from a name by using \TeX's macro
-%    argument-gobbling mechanism without worrying that an accent
-%    will be separated from its base letter.
-%    As a bonus, it also replaces ties (|~|) by spaces.
-%    \begin{macrocode}
-\def\normalize@edef#1#2{%
-    \begingroup
-        \@apply\auto@protect\amsrefs@textsymbols
-        \@apply\wrap@accent\amsrefs@textaccents
-%    \end{macrocode}
-%    Redefine \cs{@tabacckludge} in case someone wants to use this
-%    with the \pkg{inputenc} package.
-%    \begin{macrocode}
-        \let\@tabacckludge\use@accent
-        \let~\space
-        \edef\@tempa{\def\@nx#1{#2}}%
-    \@xp\endgroup
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\use@accent}
-%    This is identical to \cs{@nameuse} except for the addition of the
-%    \cs{string}, which, as per \fn{ltoutenc.dtx}, guards against the
-%    eventuality that something like |'| might be active at the point
-%    of use.  We don't expect to find a \cs{bib} in the middle of a
-%    \env{tabbing} environment (do we?)\ so we
-%    \begin{macrocode}
-\def\use@accent#1{\csname\string#1\endcsname}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\wrap@accent}
-%    Here's a wrapper macro that causes an accent to become
-%    auto-wrapping.  E.g., after \verb+\wrap@accent\'+, \verb+\'o+
-%    will expand to \verb+{\'o}+.
-%    \begin{macrocode}
-\def\wrap@accent#1{%
-    \def#1##1{{\@nx#1##1}}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\lc@edef}
-%    This converts all the characters in a name to all lowercase,
-%    using the mapping defined by \cs{amsrefs@textsymbols}.  So, after
-%    \begin{verbatim}
-%    \lc@edef\cs{P\'olya}
-%\end{verbatim}
-%    \cs{cs} will contain |p\'olya|.  Note that accents are not
-%    wrapped and ties are passed through unmolested.
-%    \begin{macrocode}
-\def\lc@edef#1#2{%
-    \begingroup
-        \let\@tabacckludge\use@accent %%??
-        \@apply\auto@protect\amsrefs@textaccents
-        \@apply\lc@do\amsrefs@textsymbols
-        \edef\@tempa{\lowercase{\def\@nx#1{#2}}}%
-    \@xp\endgroup
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\lc@do}
-%    This is a slighly more complicated wrapper macro than previous
-%    ones.
-%    The first argument is a text symbol; the second argument is the
-%    lowercase variant of the symbol.  If they're the same (i.e., the
-%    first argument is a lowercase text symbol), we \cs{auto@protect}
-%    it.  Otherwise we define the first symbol to expand to the
-%    second.
-%    \begin{macrocode}
-\def\lc@do#1\do#2{%
-    \ifx#1#2%
-        \auto@protect#1%
-    \else
-        \def#1{#2}%
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\purge@edef}
-%    Removes accents and braces from a name and converts ties to
-%    spaces, leaving only letters, punctuation and text symbols.  For
-%    example,
-%    \begin{verbatim}
-%    \lc@edef\cs{P{\'o}lya}
-%\end{verbatim}
-%    will put |Polya| in~\cs{cs}.
-%    \begin{macrocode}
-\def\purge@edef#1#2{%
-    \begingroup
-        \@apply\auto@protect\amsrefs@textsymbols
-        \let~\space
-        \@apply\purge@accent\amsrefs@textaccents
-        \let\@tabacckludge\@gobble
-%    \end{macrocode}
-%    As mentioned above (page~\pageref{anomalies}), \cn{i} and \cn{j}
-%    are semantically like text accents; hence, they require special
-%    treatment here.
-%    \begin{macrocode}
-        \def\i{i}%
-        \def\j{j}%
-        \edef\@tempa{#2}%
-        \toks@\@emptytoks
-        \@xp\purge@edef@ \@tempa \@nil
-        \edef\@tempa{\def\@nx#1{\the\toks@}}%
-    \@xp\endgroup
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\purge@edef@}
-%    Peek ahead so \cs{purge@edef@a} will know whether its argument
-%    was originally surrounded by braces.
-%    \begin{macrocode}
-\def\purge@edef@{%
-    \futurelet\@let@token
-    \purge@edef@a
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\purge@edef@a}
-%    Process a single ``chunk'' (i.e., one macro-argument's worth) of
-%    the name.
-%    \begin{macrocode}
-\def\purge@edef@a#1{%
-%    \end{macrocode}
-%    If we've run into the \cs{@nil} terminator, we're done.
-%    \begin{macrocode}
-    \ifx\@let@token\@nil
-        \let\@tempa\@empty
-    \else
-%    \end{macrocode}
-%    Otherwise, if the argument was originally surrounded by braces,
-%    process it recursively before processing the remainder of the
-%    token stream.
-%    \begin{macrocode}
-        \ifx\@let@token\bgroup
-            \def\@tempa{%
-                \purge@edef@ #1\@nil
-                \purge@edef@
-            }%
-        \else
-%    \end{macrocode}
-%    If the argument is a single unbracketed token, just copy it into
-%    the output.
-%    \begin{macrocode}
-            \add@toks@{#1}%
-            \let\@tempa\purge@edef@
-        \fi
-    \fi
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\purge@accent}
-%    This is similar to \cs{wrap@accent} but it removes the accent
-%    command (and possibly a layer of braces surrounding the accent's
-%    argument).
-%    \begin{macrocode}
-\def\purge@accent#1{%
-    \def#1##1{##1}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsection{Name parsing}
-%
-%    Parsing names is somewhat complicated because parts of the name
-%    can (in principle) be empty (G=given, S=surname, J=jr)):
-%    \begin{quote}
-%    \nametest{Doe, John, Jr.}
-%    \nametest{Doe, John}
-%    \nametest{Doe, , Jr.}
-%    \nametest{Doe}
-%    \nametest{, John, Jr.}
-%    \nametest{, John}
-%    \nametest{, , Jr.}
-%    \nametest{}
-%    \end{quote}
-%    Not all of these forms are legal, of course, but that's no excuse
-%    for not parsing them correctly.
-%
-%    We also want to be somewhat lenient about the placement of
-%    spaces:
-%    \begin{quote}
-%    \nametest{ Doe,John,Jr.}
-%    \end{quote}
-%
-%    However, because one must have some standards, we assume there
-%    are no spaces in the following positions in the input:
-%    \begin{enumerate}
-%    \item before periods,
-%
-%    \item before commas,
-%
-%    \item at the end of the name,
-%
-%    \item before or after hyphens.
-%    \end{enumerate}
-%
-%    Thus, we make no attempt to compensate for the misplaced spaces
-%    in examples like these:
-%    \begin{quote}
-%    \nametest{Doe , J ., Jr. }
-%    \nametest{Doe, J. - M.}
-%    \end{quote}
-%
-%    Also, unless we are generating initials, we don't try to
-%    normalize spaces \emph{after} periods:
-%    \begin{quote}
-%    \nametest{Doe, J.M.}\\ (not G=\embrace{J. M.})
-%    \end{quote}
-%
-%    Finally, since we allow authors to group together characters that
-%    should be treated as a single unit, we need to be careful to
-%    preserve the author's markup in cases like these:
-%
-%    \begin{quote}
-%    \nametest{Doe, {Yu}ri}
-%    \nametest{Doe, {Yu}}
-%    \end{quote}
-%
-%    This is harder than it seems.  For example, consider a naive
-%    implementation that uses delimited arguments to pull the name
-%    apart:
-%    \begin{verbatim}
-%    \def\parsename#1,#2\@nil{%
-%        \def\bib'surname{#1}%
-%        \def\bib'given{#2}%
-%    }
-%
-%    \parsename Doe, {Yu}ri\@nil
-%\end{verbatim}
-%    Unfortunately, this results in the space after the comma
-%    becoming part of \cs{bib'given}: ``\verb+ {Yu}ri+''.
-%
-%    Our next thought would be to modify the definition slightly to
-%    trick \TeX\ into gobbling the space:
-%    \begin{verbatim}
-%    \def\parsename#1,#2#3\@nil{%
-%        \def\bib'surname{#1}%
-%        \def\bib'given{#2#3}%
-%    }
-%\end{verbatim}
-%    Now the space is gone, but---surprise!---so are the braces:
-%    ``\verb+Yuri+''.  In addition, this approach makes it difficult
-%    to handle empty name parts correctly.
-%
-%    To sidestep these problems, instead of blindly gobbling macro
-%    arguments, we use \cs{futurelet} to look ahead at certain
-%    strategic moments so we can take the appropriate action (see
-%    \cs{get@namepart@d}--|f|).  We only really care about preserving
-%    braces at the start of names (page~\pageref{initial-braces}),
-%    which simplifies things somewhat.\label{brace-preservation}
-%
-%    \begin{macro}{\name@split}
-%    \cs{name@split} parses a name into its three parts and stores
-%    them in \cs{bib'surname}, \cs{bib'given} and \cs{bib'jr}.  If the
-%    \opt{initials} option is in force, it also extracts the initials
-%    from the given name and stores them in \cs{bib'initials}.
-%
-%    It expects the name to be parsed to be terminated by \cs{@nil}
-%    and to contain at least three commas.  Thus the usual way to
-%    invoke it is
-%    \begin{quote}
-%    \cs{name@split} $\langle\mathit{name}\rangle$\verb+,,,\@nil+
-%    \end{quote}
-%
-%    \cs{name@split} just uses \cs{get@namepart} to peal off the
-%    surname and then passes control to \cs{name@split@given}.
-%    (Note the spiffy continuation-passing programming style.)
-%    \begin{macrocode}
-\def\name@split{%
-    \get@namepart\bib'surname\name@split@given
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\name@split@given}
-%    Pretty much the same, \em{mutatis mutandis}\ldots
-%    \begin{macrocode}
-\def\name@split@given{%
-    \get@namepart\bib'given\name@split@jr
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\name@split@jr}
-%    And again\ldots
-%    \begin{macrocode}
-\def\name@split@jr{%
-    \get@namepart\bib'jr\name@split@finish
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\name@split@finish}
-%    We have all three parts now.  Do some consistency checking,
-%    extract the initials from the given name, and then call
-%    \cs{@nilgobble} to remove anything (such as extra commas) left on
-%    the stack.
-%    \begin{macrocode}
-\def\name@split@finish{%
-    \ifx\bib'surname\@empty \EmptyNameWarning \fi
-%    \end{macrocode}
-%    Theoretically, we could try to check for uninverted names here,
-%    but only at the risk of producing spurious warnings when the name
-%    really does only have one part (\verb+author={Arvind}+).
-%
-%    A possible solution: Now that we have the
-%    \attr{inverted} attribute, we could issue a warning if the given
-%    name is empty and the family name contains a space.  I'm sure
-%    someone could find valid input that would still generate a
-%    spurious warning, but this would take care of the most common
-%    cases.  This bears more thinking about.
-%    \begin{macrocode}
-%%      \ifx\@empty\bib'given
-%%          \NameCheck \bib'surname ??\@nil
-%%      \else
-        \extract@initials\bib'given
-%%      \fi
-    \@nilgobble
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\get@namepart}
-%    Now for the fun part.  \cs{get@namepart} takes two arguments.
-%    The first (the destination) should be a control sequence; the
-%    second (the continuation) will normally also be a control
-%    sequence, though technically we only require that it be a single
-%    token.  \cs{get@namepart} scans everything up to the next level-0
-%    comma, places it in the destination, and then calls the
-%    continuation.
-%    \begin{macrocode}
-\def\get@namepart#1#2{%
-%    \end{macrocode}
-%    Save the destination in \cs{toks@} and the continuation in
-%    \cs{@temptokena}.  It's unfortunate that this trashes the
-%    previous contents of those token lists (as well as the contents
-%    of \cs{@tempa} later on), but preliminary attempts to rewrite the
-%    code to leave the calling environment unchanged were not
-%    encouraging.
-%    \begin{macrocode}
-    \toks@{#1}%
-    \@temptokena{#2}%
-    \get@namepart@a
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\get@namepart@a}
-%    Now peek ahead at the next token in the stream and call
-%    \cs{get@namepart@b} to examine it.
-%    \begin{macrocode}
-\def\get@namepart@a{%
-    \futurelet\@let@token
-    \get@namepart@b
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\get@namepart@b}
-%    If the next token is a space token, we want to delete it.
-%    Otherwise we're ready to read the name.
-%    \begin{macrocode}
-\def\get@namepart@b{%
-    \ifx\@let@token\@sptoken
-        \@xp\get@namepart@c
-    \else
-        \@xp\get@namepart@d
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\get@namepart@c}
-%    The next token is a space; we delete it and restart
-%    \cs{get@namepart@a}, in case there are multiple spaces.
-%    \begin{macrocode}
-\def\get@namepart@c{%
-    \after@deleting@token\get@namepart@a
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\get@namepart@d}
-%    We're at the beginning of the name part.  However, there are
-%    still two special cases we have to watch out for.  First, the
-%    next token might be a comma, meaning that this name part is
-%    empty.  Second, the next token might be an open brace (\verb+{+),
-%    which we have to be sure to copy into the destination.  So, we
-%    peek ahead again before proceeding.
-%    \begin{macrocode}
-\def\get@namepart@d{%
-    \futurelet\@let@token
-    \get@namepart@e
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\get@namepart@e}
-%    If the next token is a comma, it means the name part is empty;
-%    so, we set the destination to an empty list and then arrange to
-%    execute the continuation after deleting the comma.  Otherwise we
-%    call \cs{get@namepart@f} to read a non-empty name, leaving
-%    \cs{@let@token} undisturbed so that \cs{get@namepart@f} knows
-%    what's coming up.
-%    \begin{macrocode}
-\def\get@namepart@e{%
-    \ifx\@let@token,%
-        \@xp\let\the\toks@\@empty
-        \edef\@tempa{%
-            \@nx\after@deleting@token\the\@temptokena
-        }%
-        \@xp\@tempa
-    \else
-        \@xp\get@namepart@f
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\get@namepart@f}
-%    We know whether or not the name begins with a brace, but we don't
-%    know if the corresponding group contains the entire name or only
-%    part of it.  By reading the name as two arguments, we can handle
-%    all cases correctly.\footnote{More or less.  If the second
-%    argument is brace-delimited, the braces will be lost.  But as
-%    mentioned above (page~\pageref{brace-preservation}), we don't
-%    really care.}
-%
-%    Note that the arguments are not expanded.
-%    \begin{macrocode}
-\def\get@namepart@f#1#2,{%
-    \ifx\@let@token\bgroup
-        \@xp\def\the\toks@{{#1}#2}%
-    \else
-        \@xp\def\the\toks@{#1#2}%
-    \fi
-    \the\@temptokena
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\EmptyNameWarning}
-%    Or translator or contributor or\ldots
-%    \begin{macrocode}
-\def\EmptyNameWarning{\amsrefs@warning{Empty contributor name}}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsection{Extracting initials}
-%
-%    Extracting initials from the author's given name is tricky
-%    because of the numerous special cases that need to be
-%    handled. Consider the following examples, some of which are
-%    admittedly contrived:
-%    \begin{quote}
-%    \initialtest{Arvind}
-%    \initialtest{Bing, R H}
-%    \initialtest{Harish, \'Etienne}
-%    \initialtest{Harish, \'E.}
-%    \initialtest{Harish, \'{E}.}
-%    \initialtest{Harish, {\'E}.}
-%    \initialtest{Harish, \'E}
-%    \initialtest{Harish, \'Etienne-P\^{\i}erre}
-%    \initialtest{Jones, David}
-%    \initialtest{Jones, David-Michael}
-%    \initialtest{Katzenbach, Nicholas {deB}elleville}
-%    \initialtest{Katzenbach, Nicholas deB.}
-%    \initialtest{Matiyasevich, {Yu}ri}
-%    \initialtest{Matiyasevich, {Yu}}
-%    \initialtest{Matiyasevich, Yu.}
-%    \end{quote}
-%    When processing initials, we loosen our strictures on spaces
-%    inside the given name by not requiring spaces after periods and
-%    tolerating them around hyphens and after the name:
-%    \begin{quote}
-%    \initialtest{Jones, D.M.}
-%    \initialtest{Jones, David - Michael}
-%    \initialtest{Jones, David , Jr.}
-%    \end{quote}
-%    (Strictly speaking, only the support for the first of these
-%    examples was a deliberate design decision; the other two are
-%    side-effects of the implementation.  In any case, toleration of
-%    these quirks is in no way an endorsement of them, especially
-%    since they may make it more difficult for third-party software to
-%    correctly process bibliography entries.)
-%
-%^^A    We also make one additional assumption: a hyphen does not occur
-%^^A    as the last character in the name.
-%
-% \subsubsection{The algorithm}
-%
-%    As a running example, consider the following contrived input:
-%    \begin{quote}
-%    {\tt \verb+\'E.-P\^{\i}erre J.K. M+}
-%    \end{quote}
-%    which we want to turn into {\makeatletter``{\'E}.~\ini@hyphen
-%    P.~J.~K.~M''}.
-%
-%    We precede by stages.
-%    \begin{enumerate}
-%
-%    \item
-%    Normalize the name by surrounding accents and their arguments by
-%    braces:
-%    \begin{quote}
-%    \verb+{\'E}.-P{\^\i }erre J.K. M+
-%    \end{quote}
-%    We also replace \verb+~+s by spaces at this stage.
-%
-%    \item
-%    Replace each hyphen (\verb+-+) by ``\verb*+ \ini@hyphen +'':
-%    \begin{quote}
-%    \verb+{\'E}. \ini@hyphen  P{\^\i }erre J.K. M+
-%    \end{quote}
-%
-%    \item
-%    Add a space after each period:
-%    \begin{quote}
-%    \verb+{\'E}.  \ini@hyphen  P{\^\i }erre J. K.  M+
-%    \end{quote}
-%
-%    \item
-%    Now we have the name as a list of space-separated components.
-%    (In our example, the components are ``\verb+{\'E}.+'',
-%    ``\verb+\ini@hyphen+'', ``\verb+P{\^\i }erre+'', ``\verb+J.+'',
-%    ``\verb+K.+'', and ``\verb+M+''.)  We loop through the compoments
-%    and replace each one by its ``initialized'' form.  There are
-%    four cases:\label{initial_cases}
-%    \begin{enumerate}
-%
-%    \item
-%    The component ends in a period.  Copy it and add the token
-%    \verb+~+.  (In our example, these are the
-%    components ``\verb+{\'E}.+'', ``\verb+J.+'' and ``\verb+K.+''.)
-%
-%    \item
-%    The component consists of a single (possibly compound) character
-%    without a period.  Again, copy it and add
-%    \verb+~+.  (In our example, this is the component
-%    ``\verb+M+''.)
-%
-%    \item
-%    The component is the token \verb+\ini@hyphen+.  Copy it.
-%
-%    \item
-%    The component consts of two or more (possibly compound)
-%    characters without a period (e.g., ``\verb+P{\^\i }erre+'').
-%    Copy the first character and add the tokens \verb+.~+.
-%    \end{enumerate}
-%
-%    \item
-%    The token list generated above will end with an unwanted |~|.
-%    Delete it.
-%
-%    \end{enumerate}
-%
-%    The end result is
-%    \begin{verbatim}
-%    {\'E}.~\ini@hyphen P.~J.~K.~M
-%\end{verbatim}
-%    which, when typeset, does indeed produce
-%    {\makeatletter''{\'E}.~\ini@hyphen P.~J.~K.~M''}.\footnote{Tying
-%    all the characters together is potentially undesirable when, as
-%    in the example, there are a large number of pieces in the given
-%    name.}
-%
-% \subsubsection{The implementation}
-%
-%    \begin{macro}{\extract@initials}
-%    This is pretty straightforward.
-%    \begin{macrocode}
-\def\extract@initials#1{%
-    \begingroup
-        \auto@protect\ini@hyphen
-        \auto@protect\nobreakspace
-        \let~\relax
-        \@apply\auto@protect\amsrefs@textsymbols
-        \@apply\auto@protect\amsrefs@textaccents
-        \normalize@edef\@tempa{#1}%
-        \ifx\@tempa\@empty
-        \else
-%    \end{macrocode}
-%    It would be nice if \cs{process@hyphens} and \cs{process@dots}
-%    commuted, and they almost do.  However, suppose you have the
-%    (admittedly contrived) name |Yu.-{Yu}|, which should be turned
-%    into ``Yu.-Yu''.  If \cs{process@dots} is applied first, the
-%    braces around the second ``Yu'' get removed, so the output is
-%    ``Yu.-Y.''.  (Even worse would be |P.-\'E|, which would produce
-%    ``P.-\'.'')
-%    \begin{macrocode}
-            \process@hyphens\@tempa
-            \process@dots\@tempa
-            \process@names\@tempa
-            \@chomp\@tempa{~}%
-        \fi
-        \edef\@tempa{\def\@nx\bib'initials{\@tempa}}%
-    \@xp\endgroup
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ini@hyphen}
-%    The \cs{unskip} removes the space at the end of a potential (and
-%    probable) preceding |~|, but leaves the \cs{nobreak} penalty.
-%    \begin{macrocode}
-\def\ini@hyphen{\unskip-\nobreak}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\process@hyphens}
-%    This follows the same general pattern as \cs{get@namepart}, but
-%    with an extra layer of grouping to avoid unwanted side-effects.
-%    Otherwise, it uses the same parsing techniques.
-%
-%    One difference is that there is no explicit continuation:
-%    instead, we iterate by repeatedly calling
-%    \cs{process@one@hyphen@d} until we run into the \cs{@nil}
-%    marker.
-%    \begin{macrocode}
-\def\process@hyphens#1{%
-    \begingroup
-        \toks@\@emptytoks
-        \@xp\process@one@hyphen #1-\@nil
-        \edef\@tempa{\the\toks@}%
-%    \end{macrocode}
-%    Because of the |-| we have to stick in as a delimiter above,
-%    \cs{process@one@hyphen} will always generate unwanted code at the
-%    end of the name.  We now delete it.  (This also has the necessary
-%    side-effect of expanding the \cs{space} macros into space
-%    characters.)
-%    \begin{macrocode}
-        \@chomp\@tempa{ \ini@hyphen\space}%
-        \edef\@tempa{\def\@nx#1{\@tempa}}%
-    \@xp\endgroup
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\process@one@hyphen}
-%    Cf.\ \cs{get@namepart@a}.
-%    \begin{macrocode}
-\def\process@one@hyphen{%
-    \futurelet\@let@token
-    \process@one@hyphen@a
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\process@one@hyphen@a}
-%    Cf.\ \cs{get@namepart@b} and \cs{extract@initial@a}.
-%
-%    The tests for \cs{@nil} and~|-| here are purely to supply better
-%    error recovery.  Without them, a hyphen at the end of the given
-%    name (.e.g, |author={Doe, John-}|) would produce a very
-%    mysterious error message.  Since it's unlikely the hyphen really
-%    belongs there, we delete it, but we also issue a warning to the
-%    author. (It will still show up as part of the full given name,
-%    though.)
-%
-%    We borrow \cs{fsa@n} from \pkg{rkeyval} to keep track of the
-%    appropriate next action.
-%    \begin{macrocode}
-\def\process@one@hyphen@a{%
-    \ifx\@let@token\@nil
-        \let\fsa@n\@gobble
-    \else
-        \ifx\@let@token -%
-            \TrailingHyphenWarning
-            \let\fsa@n\process@one@hyphen@b
-        \else
-            \ifx\@let@token\@sptoken
-                \let\fsa@n\process@one@hyphen@b
-            \else
-                \let\fsa@n\process@one@hyphen@c
-            \fi
-        \fi
-    \fi
-    \fsa@n
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\process@one@hyphen@b}
-%    Cf.\ \cs{get@namepart@c}.
-%    \begin{macrocode}
-\def\process@one@hyphen@b{%
-    \after@deleting@token\process@one@hyphen
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\process@one@hyphen@c}
-%    Cf.\ \cs{get@namepart@f}.
-%    \begin{macrocode}
-\def\process@one@hyphen@c#1#2-{%
-    \ifx\bgroup\@let@token
-        \add@toks@{{#1}#2 \ini@hyphen\space}%
-    \else
-        \add@toks@{#1#2 \ini@hyphen\space}%
-    \fi
-    \futurelet\@let@token
-    \process@one@hyphen@d
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\process@one@hyphen@d}
-%    Here we just check for \cs{@nil} and terminate if we detect it.
-%    Otherwise, we start over.
-%    \begin{macrocode}
-\def\process@one@hyphen@d{%
-    \ifx\@let@token\@nil
-        \@xp\@gobble
-    \else
-        \@xp\process@one@hyphen
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\TrailingHyphenWarning}
-%    Or translator or contributor or\ldots
-%    \begin{macrocode}
-\def\TrailingHyphenWarning{%
-    \amsrefs@warning{Trailing hyphen deleted from name}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\process@dots}
-%    This is almost completely parallel to \cs{process@hyphens}.
-%    \begin{macrocode}
-\def\process@dots#1{%
-    \begingroup
-        \toks@\@emptytoks
-        \@xp\process@one@dot #1.\@nil
-        \edef\@tempa{\the\toks@}%
-        \@chomp\@tempa{. }%
-%    \end{macrocode}
-%    Since it's legitimate for names to end in periods, we might
-%    still have an unwanted space at the end of the name, so we delete
-%    it too.
-%    \begin{macrocode}
-        \@chomp\@tempa{ }%
-        \edef\@tempa{\def\@nx#1{\@tempa}}%
-    \@xp\endgroup
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\process@one@dot}
-%    \begin{macrocode}
-\def\process@one@dot{%
-    \futurelet\@let@token
-    \process@one@dot@a
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\process@one@dot@a}
-%    This is a bit different from \cs{process@one@hyphen@a} since we
-%    expect names sometimes to end in a period---or even two
-%    periods---not least because of the |.| we add as a delimiter when
-%    invoking \cs{process@one@dot}.
-%    \begin{macrocode}
-\def\process@one@dot@a{%
-    \ifx\@let@token .%
-        \def\fsa@n{\after@deleting@token\process@bare@dot}%
-    \else
-        \ifx\@let@token\@sptoken
-            \let\fsa@n\process@one@dot@b
-        \else
-            \let\fsa@n\process@one@dot@c
-        \fi
-    \fi
-    \fsa@n
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\process@bare@dot}
-%    \begin{macrocode}
-\def\process@bare@dot{%
-    \add@toks@{. }%
-    \futurelet\@let@token
-    \process@one@dot@d
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\process@one@dot@b}
-%    \begin{macrocode}
-\def\process@one@dot@b{%
-    \after@deleting@token\process@one@dot
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\process@one@dot@c}
-%    \begin{macrocode}
-\def\process@one@dot@c#1#2.{%
-    \ifx\bgroup\@let@token
-        \add@toks@{{#1}#2. }%
-    \else
-        \add@toks@{#1#2. }%
-    \fi
-    \futurelet\@let@token
-    \process@one@dot@d
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\process@one@dot@d}
-%    \begin{macrocode}
-\def\process@one@dot@d{%
-    \ifx\@let@token\@nil
-        \@xp\@gobble
-    \else
-        \@xp\process@one@dot
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\process@names}
-%    This is very similar to \cs{process@hyphens} and
-%    \cs{process@dots}, but with a couple of twists, as noted below.
-%    \begin{macrocode}
-\def\process@names#1{%
-    \begingroup
-        \toks@\@emptytoks
-        \@xp\extract@initial #1 \@nil
-        \edef\@tempa{\def\@nx#1{\the\toks@}}%
-    \@xp\endgroup
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\extract@initial}
-%    Scan through the token stream replacing words by their initials
-%    until we hit the terminating~|'|$_{11}$
-%    \begin{macrocode}
-\def\extract@initial{%
-    \futurelet\@let@token
-    \extract@initial@a
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\extract@initial@a}
-%    As with \cs{process@one@hyphen@a}, the test for |'|$_{11}$ here
-%    is purely to provide better recovery, this time in case the given
-%    name has a trailing space (.e.g, |author={Doe, John }|).
-%    But since we're just deleting whitespace, we don't bother issuing
-%    a warning.
-%    \begin{macrocode}
-\def\extract@initial@a{%
-    \ifx\@let@token\@nil
-        \let\fsa@n\@gobble
-    \else
-        \ifx\@let@token\@sptoken
-            \let\fsa@n\extract@initial@b
-        \else
-            \let\fsa@n\extract@initial@c
-        \fi
-    \fi
-    \fsa@n
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\extract@initial@b}
-%    \begin{macrocode}
-\def\extract@initial@b{%
-    \after@deleting@token\extract@initial
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\extract@initial@c}
-%    Here, instead of just copying the name, we extract its initials
-%    and copy those.
-%    \begin{macrocode}
-\def\extract@initial@c#1#2 {%
-    \ifx\@let@token\bgroup
-%    \end{macrocode}
-%    Note that we double-brace the first argument to avoid having to
-%    test \cs{@let@token} again inside \cs{@extract@initial}.
-%    \begin{macrocode}
-        \@extract@initial {{#1}}#2\@nil
-    \else
-        \@extract@initial #1#2\@nil
-    \fi
-    \futurelet\@let@token
-    \extract@initial@d
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\extract@initial@d}
-%    \begin{macrocode}
-\def\extract@initial@d{%
-    \ifx\@let@token\@nil
-        \@xp\@gobble
-    \else
-        \@xp\extract@initial
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@extract@initial}
-%    This handles the four cases mentioned on
-%    page~\pageref{initial_cases}.
-%    \begin{macrocode}
-\def\@extract@initial#1#2\@nil{%
-    \ifx\ini@hyphen#1%
-        \add@toks@{\ini@hyphen}%
-    \else
-        \in@{.\@nil}{#1#2\@nil}% Look for a period at the end of the name
-        \ifin@
-            \add@toks@{#1#2~}%
-        \else
-            \count@chars\@tempcnta{#1#2}%
-            \ifnum\@tempcnta > \@ne
-                \add@toks@{#1.~}%
-            \else
-                \add@toks@{#1~}%
-            \fi
-        \fi
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\count@chars}
-%    This sets its first argument (which is assumed to be a count
-%    register) to the number of characters in the second argument.
-%    Compound characters are counted as a single character.
-%    \begin{macrocode}
-\def\count@chars#1#2{%
-    \begingroup
-        \@tempcnta\z@
-        \@count@chars#2\@nil
-        \edef\@tempb{#1=\the\@tempcnta\relax}%
-    \@xp\endgroup
-    \@tempb
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@count@chars}
-%    \begin{macrocode}
-\def\@count@chars#1{%
-    \ifx #1\@nil
-    \else
-        \advance\@tempcnta\@ne
-        \@xp\@count@chars
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsection{Generating alphabetic labels}
-%
-% \subsubsection{The algorithm}
-%
-%    Like Gaul, an alphabetic label is divided into three parts.
-%    \begin{enumerate}
-%
-%    \item The author part.  In the simplest case, this is formed by
-%    extracting the first character of each word of each last name of
-%    each author.  Thus, if there were two authors with last names
-%    ``Vaughan Williams'' and ``Tallis'', the author part would be
-%    ``VWT''.
-%
-%    If there are more than four authors, only the first three names
-%    are used, and a superscript~``+'' is appended to represent the
-%    elided names.  Similarly, if an author name is ``others'',
-%    it is replaced by a superscript~``+'' and any following author
-%    names (of which there shouldn't be any) are ignored.
-%
-%    Finally, if there is only one author and the author's last name
-%    consists of a single word, the first three characters of that
-%    name are used.
-%
-%    \item The year part.  If the \opt{y2k} option is in force, or if
-%    the year is less than~1901, the entire year is used.  Otherwise
-%    the last two digits of the year are used.\footnote{Years with
-%    more than 4 digits are not currently handled correctly.
-%    \emph{Caveat lector}.}
-%
-%    The combination of author part and year part will be referred to
-%    as the \emph{stem}.
-%
-%    \item[3.] The suffix.  If two or more items have the same stems,
-%    a suffix consisting of a lowercase latin letter will be appended
-%    to each label to make it unique.
-%
-%    \end{enumerate}
-%
-%    \label{stem-comparison}
-%    This third part is more subtle than it might first appear.
-%    First, case is ignored when comparing stems, so that, for
-%    example, ``Ahl1999'' and ``AHL1999'' are considered identical.
-%    Second, existing practice (in English, at least), is to ignore
-%    diacritics so that, for example, ``Ahl1999'' and ``\"Ahl1999''
-%    are considered identical.
-%
-%    Note that when checking for duplicate stems, we assume that
-%    bibliography items appear sorted by label, which means that all
-%    items with the same stem will be adjacent.  This means we can use
-%    the naive algorithm (check to see if the current item has the
-%    same stem as the previous item and, if so, append a suffix) to
-%    detect clashes.  This sorting will be done automatically by
-%    \bst{amsxport}, but the document author is responsible for
-%    ensuring the appropriate order if \bst{amsxport} is not used.
-%    This is why it's an error to mix the \opt{alphabetic} and
-%    \opt{citation-order} options.
-%
-% \subsubsection{The implementation}
-%
-%    \begin{macrocode}
-\let\previous@stem\@empty
-\let\current@stem\@empty
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\let\previous@year\@empty
-\let\current@year\@empty
-%    \end{macrocode}
-%
-%    \begin{macro}{\append@to@stem}
-%    \begin{macrocode}
-\def\append@to@stem{\global\@concat\current@stem}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\generate@alphalabel}
-%    \begin{macrocode}
-\def\generate@alphalabel{%
-%    \end{macrocode}
-%    If the user supplied an explicit \fld{label} field, we use it.
-%    Otherwise, we generate our own.
-%    \begin{macrocode}
-    \ifx\bib'label\@empty
-        \begingroup
-%    \end{macrocode}
-%    We begin by saving the previous stem and initializing the
-%    current stem to the empty string.
-%    \begin{macrocode}
-            \global\let\previous@stem\current@stem
-            \global\let\current@stem\@empty
-%    \end{macrocode}
-%    The list of primary contributors is available to us in
-%    \cs{current@primary} in the form
-%    \begin{quote}
-%    \cnm{name}{$\mathrm{Last}_1, \mathrm{First}_1$}%
-%    \cnm{name}{$\mathrm{Last}_2, \mathrm{First}_2$}
-%     \ldots
-%    \cnm{name}{$\mathrm{Last}_n, \mathrm{First}_n$}
-%    \end{quote}
-%    We will be executing this list multiple times with various
-%    definitions of \cs{name}.  So the first thing we want to do is
-%    establish a safe environment and normalize the names.
-%    \begin{macrocode}
-            \@apply\auto@protect\amsrefs@textsymbols
-            \@apply\auto@protect\amsrefs@textaccents
-            \auto@protect\name
-            \auto@protect\etaltext
-            \normalize@edef\@tempa\current@primary
-%    \end{macrocode}
-%    Now we count the number of authors in the list and invoke the
-%    appropriate macro to calculate the author part of the
-%    reference label.
-%    \begin{macrocode}
-            \get@numberof\@tempcnta\name\@tempa
-            \calc@author@part
-%    \end{macrocode}
-%    Next append the year part.
-%    \begin{macrocode}
-            \append@label@year
-%    \end{macrocode}
-%    At this point, the \cs{current@stem} is complete and we're ready
-%    to determine what (if any) suffix is needed to disambiguate
-%    it from the previous label.
-%    \begin{macrocode}
-            \calc@alpha@suffix
-%    \end{macrocode}
-%    We have all the pieces now.  Arrange to end the current group and
-%    then define \cs{bib@label} in the enclosing group.  (This keeps
-%    \cs{bib@label} from being defined outside the group started by
-%    \cs{bib@start}.  This isn't strictly necessary, but it provides a
-%    bit of compartmentalization.)
-%    \begin{macrocode}
-            \edef\@tempa{%
-                \def\@nx\bib'label{%
-                    \current@stem
-                    \alpha@label@suffix
-                }%
-            }%
-        \@xp\endgroup
-        \@tempa
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\calc@author@part}
-%    \begin{macrocode}
-\def\calc@author@part{%
-    \ifnum \@tempcnta = 1
-        \@xp\@oneauthorlabel\@xp{\@tempa}%
-    \else
-        \@xp\@multiauthorlabel\@xp{\@tempa}%
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@firstone}
-%    This extracts the first character from a properly prepared author
-%    name (i.e., one in which accents are properly wrapped).
-%    \begin{macrocode}
-\def\@firstone#1{\@car#1\@empty\@nil}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@firstthree}
-%    And this extracts the first three characters.
-%    \begin{macrocode}
-\def\@firstthree#1{\@carcube#1\@empty\@empty\@empty\@nil}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@nametoken}
-%    \begin{macrocode}
-\let\@nametoken\@firstone
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\hyph@to@space}
-%    \begin{macrocode}
-\def\hyph@to@space#1-{#1 \hyph@to@space}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@marknames}
-%    Since we have a~' with funny catcode already, let's use it (being
-%    able to easily put a space after the |'| makes things easier).
-%    \begin{macrocode}
-\def\@marknames#1{%
-    \@ifnotempty{#1}{\surround@names#1 ' }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\surround@names}
-%    \begin{macrocode}
-\def\surround@names#1 {%
-    \ifx '#1%
-    \else
-        \@nx\@nametoken{#1}%
-        \@xp\surround@names
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\extract@surnames}
-%    \begin{macrocode}
-\def\extract@surnames#1#2{%
-    \get@namepart\@tempb\@nilgobble #2,\@nil
-    \edef\@tempb{\@nx\@marknames{\@xp\hyph@to@space\@tempb\@gobble-}}%
-    \edef#1{\@tempb}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@oneauthorlabel}
-%    This is the easy case.
-%    \begin{macrocode}
-\newcommand{\@oneauthorlabel}[1]{%
-    \def\name##1{%
-        \extract@surnames\@tempa{##1}%
-        \get@numberof\@tempcnta\@nametoken\@tempa
-        \ifnum \@tempcnta = 1
-            \let\@nametoken\@firstthree
-        \fi
-        \append@to@stem{\@tempa}%
-    }%
-    #1%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@threeauthors}
-%    \begin{macrocode}
-\def\@threeauthors\name#1\name#2\name#3#4\@empty{%
-    \name{#1}\name{#2}\name{#3}%
-    \append@to@stem{\etalchar{+}}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@multiauthorlabel}
-%    \begin{macrocode}
-\newcommand{\@multiauthorlabel}[1]{%
-    \def\name##1{%
-        \ifx\etaltext ##1%
-            \def\@tempa{\@nx\etalchar{+}}%
-            \let\name\@gobble
-        \else
-            \extract@surnames\@tempa{##1}%
-        \fi
-        \append@to@stem{\@tempa}%
-    }%
-    \ifnum \@tempcnta > 4 \@xp \@threeauthors \fi
-    #1\@empty
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\etalchar}
-%    \begin{macrocode}
-\newcommand{\etalchar}[1]{$^{#1}$}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\year@short}
-%    For alphanumeric labels, we want to extract the last 2 digits of
-%    the year.  Here's a way to do that, assuming a 4-digit year.
-%    \begin{macrocode}
-\def\year@short#1#2#3#4\@nil{#3#4}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\append@label@year}
-%    \begin{macrocode}
-\def\append@label@year{%
-    \safe@set\@tempcnta\bib@year
-    \edef\bib@citeyear{\the\@tempcnta}%
-    \append@to@stem{%
-        \ifx\bib@year\@empty
-        \else
-            \@xp\year@short \bib@citeyear \@nil
-        \fi
-    }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macrocode}
-\let\alpha@label@suffix\@empty
-
-\newcount\alpha@suffix
-\alpha@suffix\@ne
-\let\@suffix@format\@alph
-%    \end{macrocode}
-%
-%    \begin{macro}{\calc@alpha@suffix}
-%    \begin{macrocode}
-\def\calc@alpha@suffix{%
-    \@tempswafalse
-    \compare@stems\previous@stem\current@stem
-    \ifsame@stems
-%    \end{macrocode}
-%    Under the \opt{alphabetic} option, \cs{previous@year} and
-%    \cs{current@year} will always be the same (namely, both will be
-%    empty), but including the test allows this code to work with the
-%    \opt{author-year} option as well.
-%    \begin{macrocode}
-        \ifx\previous@year\current@year
-            \@tempswatrue
-        \fi
-    \fi
-    \if@tempswa
-        \global\advance\alpha@suffix\@ne
-        \edef\alpha@label@suffix{\@suffix@format\alpha@suffix}%
-        \ifnum\alpha@suffix=\tw@
-            \immediate\write\@auxout{%
-                \string\ModifyBibLabel{\prev@citekey}%
-            }%
-        \fi
-    \else
-        \let\alpha@label@suffix\@empty
-        \global\alpha@suffix\@ne
-        \@xp\ifx \csname b@\current@citekey @suffix\endcsname \relax
-        \else
-            \edef\alpha@label@suffix{\@suffix@format\alpha@suffix}%
-        \fi
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ifsame@stems}
-%    \begin{macrocode}
-\newif\ifsame@stems
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\compare@stems}
-%    \begin{macrocode}
-\def\compare@stems#1#2{%
-    \begingroup
-        \purge@edef\@tempa{#1}%
-        \purge@edef\@tempb{#2}%
-        \lc@edef\@tempa{\@tempa}%
-        \lc@edef\@tempb{\@tempb}%
-        \ifx\@tempa\@tempb
-            \def\@tempa{\same@stemstrue}%
-        \else
-            \def\@tempa{\same@stemsfalse}%
-        \fi
-    \@xp\endgroup
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ModifyBibLabel}
-%    \begin{macrocode}
-\def\ModifyBibLabel#1{%
-    \global\@xp\let\csname b@#1@suffix\endcsname\@empty
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsection{Generating short alphabetic labels}
-%
-%    This style for alphabetic labels is somewhat simpler than the
-%    regular alphabetic style.  The stem consists only of an author
-%    part without a year part.  The author part is formed in the same
-%    way, except that even when there is only a single author with a
-%    one-word last name, only the first letter of the name is used,
-%    not the first three.  Finally, the suffix used to disambiguate
-%    identical stems is numeric rather than alphabetic.
-%
-%    See section~\ref{opt:shortalphabetic} on
-%    page~\pageref{opt:shortalphabetic} for the implementation.
-%
-% \subsection{Formatting series}
-%
-%    The \cn{PrintSeries} command prints a list of objects in series
-%    form. The essential idea is to produce something like \qq{A, B, and
-%    C} when we are given three elements ``A'', ``B'', and ``C'', with
-%    suitable variations in the punctuation and other intervening
-%    material depending on the number of elements.
-%
-%    More precisely, we can envision \cn{PrintSeries} being
-%    called as
-%    \begin{quote}
-%    |\PrintSeries{|$S$|}{|$i_1$|}{|$i_2$|}{|$i_3$|}{|$E$|}{\do{|$T_1$|}| \dots|\do{|$T_n$|}}|
-%\end{quote}
-%    where $S$ and~$E$ are material to be interpolated before the
-%    start and after the end of the list, respectively,
-%    $i_1$, \dots, $i_3$ are material to be interpolated between the
-%    elements, and the final argument is a list of indeterminate
-%    length where each element consists of a macro and its
-%    argument. If there are exactly two elements, $i_1$ is inserted
-%    between them; otherwise, $i_2$ is inserted between each pair of
-%    items except for the last pair, where $i_3$ is inserted.  Thus,
-%    \begin{center}
-%    \begin{tabular}{ll}
-%    $n$    & output \\
-%    1      & $S$ $T_1$ $E$ \\
-%    2      & $S$ $T_1$ $i_1$ $T_2$ $E$ \\
-%    3      & $S$ $T_1$ $i_2$ $T_2$ $i_3$ $T_3$ $E$ \\
-%    4      & $S$ $T_1$ $i_2$ $T_2$ $i_2$ $T_3$ $i_3$ $T_4$ $E$
-%^^A    \\$>4$   & $S$ $T_1$ $i_2$ $T_2$ $i_2$ $T_3$ \dots $T_{n-1}$ $i_3$ $T_n$ $E$
-%    \end{tabular}
-%    \end{center}
-%    and so forth.  For example, a standard comma-separated list could
-%    be formatted by
-%    \begin{verbatim}
-%    \PrintSeries{}{ and }{, }{, and }{}{...}
-%\end{verbatim}
-%
-%    That is the simple case but in practice there are
-%    additional complications. What if user-supplied line breaks have to
-%    be supported at the boundaries between elements? What if in
-%    addition to adding material between elements we also want to apply
-%    some handy function to each element (e.g., \cn{textsc})? Even
-%    worse, what if we want the function to be different depending on
-%    the position of the element in the list? Indeed if this did not
-%    happen to be the case with the current application I would not have
-%    gone to the extra trouble of supporting it. But if it must be so,
-%    then the output that we need from a list |\do{A}\do{B}...| is
-%    \begin{verbatim}
-%    f0{A}
-%    f0{A} p1 i1 f1{B}
-%    f0{A} p2 i2 f2{B} p3 i3 f3{B}
-%\end{verbatim}
-%    and so on, where
-% \begin{itemize}
-% \item $f_n$ is a macro taking one argument,
-% \item $p_n$ is punctuation\mdash material that must precede a line
-%    break if one occurs at this boundary,
-% \item $i_n$ other interpolated material, as before.
-% \end{itemize}
-%    To reduce the number of distinct required objects we decree that
-%    each element will get braces wrapped around it as a matter of
-%    course; then it is possible for $f_1$, $f_2$, $f_3$ to be
-%    assimilated onto the tail end of $i_1$, $i_2$, $i_3$.  Since we
-%    also have to specify the macro that delimits the elements
-%    of the list, we end up with the following rather formidable
-%    signature:
-%    \begin{quote}\raggedright
-%    |\PrintSeries{\m} {|$f_0$|}|
-%    |{|$p_1$|}{|$i_1 f_1$|}| |{|$p_2$|}{|$i_2 f_2$|}|
-%    |{|$p_3$|}{|$i_3 f_3$|}|
-%    \hspace*{2 em} |{|$S$|} {\m{|$T_1$|}|$\dots$|\m{|$T_n$|}} {|$E$|}|
-%\end{quote}
-%    and our comma-separated list example becomes
-%    \begin{verbatim}
-%    \PrintSeries{\do}{} {}{ and } {,}{ } {,}{ and } {}{...}{}
-%\end{verbatim}
-%
-%    \begin{macro}{\series@index}
-%    First we define a dedicated count register to be used in tracking
-%    the ordinal number of the item currently being processed.
-%    \begin{macrocode}
-\newcount\series@index
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintSeries}
-%    \begin{macrocode}
-\def\PrintSeries#1#2#3#4#5#6#7#8{%
-    \begingroup
-        \def\series@add@a{#2}%
-        \def\series@add@b{\SwapBreak{#3}#4}%
-        \def\series@add@c{\SwapBreak{#5}#6}%
-        \def\series@add@d{\SwapBreak{#7}#8}%
-        \def\series@add@e{\SwapBreak{#7}}%
-        \PrintSeries@a{#1}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrinteSeries@a}
-%    For \cs{PrintSeries@a} the first arg is the iterator function
-%    present in the list which is arg 3. Args 2 and 4 are extra material
-%    to be added before and after the list that may require the use of
-%    \cn{Plural} or \cn{SingularPlural}.
-%    \begin{macrocode}
-\def\PrintSeries@a#1#2#3#4{%
-        \get@numberof\@tempcnta#1{#3}%
-        \chardef\series@total=\@tempcnta
-        \ifnum\series@total=\@ne
-            \let\SingularPlural\@firstoftwo
-        \else
-            \let\SingularPlural\@secondoftwo
-        \fi
-        \series@index=\z@
-        \let#1\series@add
-        #2#3#4\relax
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\series@add}
-%    This is the inner function called by \cn{PrintSeries} that
-%    carefully distributes all the material stored previously in
-%    \cs{series@add@...} macros.
-%
-%    Note that the handling of ``et al.''\ cases is somewhat
-%    hardcoded.  This seemed preferable to adding yet another argument
-%    (or two!\@) to \cs{PrintSeries}.
-%    \begin{macrocode}
-\def\series@add#1{%
-    \advance\series@index\@ne
-    \ifx\etaltext#1\relax
-        \ifnum\series@index=\tw@
-            \def\@tempa{\space\SubEtal}%
-        \else
-            \def\@tempa{\series@add@e\space\SubEtal}%
-        \fi
-%    \end{macrocode}
-%    We assume there are fewer than 20,000 items in the list.
-%    \begin{macrocode}
-        \series@index\@MM
-    \else
-        \ifcase\series@index
-        \or
-%    \end{macrocode}
-%    Material before name 1:
-%    \begin{macrocode}
-            \let\@tempa\series@add@a
-        \or
-%    \end{macrocode}
-%    Material before name 2:
-%    \begin{macrocode}
-            \ifnum\series@total<\thr@@
-                \let\@tempa\series@add@b
-            \else
-                \let\@tempa\series@add@c
-            \fi
-        \else
-%    \end{macrocode}
-%    Material before names 3, 4, 5,\dots
-%    \begin{macrocode}
-            \ifnum\series@index=\series@total
-                \let\@tempa\series@add@d
-            \else
-                \ifnum\series@index<\series@total
-                    \let\@tempa\series@add@c
-                \else
-                    \let\@tempa\@gobble
-                \fi
-            \fi
-        \fi
-    \fi
-    \@tempa{#1}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\SwapBreak}
-%    This takes a single argument, which should begin with a
-%    punctuation character, and conditionally appends it to the
-%    current horizontal list after removing any preceding whitespace.
-%    If there was also a penalty at the end of the hlist (presumed to
-%    be the result of a |\linebreak| at the end of a field value), it
-%    moves the penalty to \emph{after} the argument.
-%
-%    \begin{bug}
-%    \cn{SwapBreak} interferes with \TeX's kerning mechanism.  For
-%    example, consider a field value that ends with a~``y'' and that
-%    should have a comman automatically appended.  \pkg{amsrefs}
-%    generates the equivalent of |y\SwapBreak{,}|, which results in
-%    ``y\SwapBreak{,}'' (no kern before the comma) rather than~``y,''.
-%    Unfortunately, fixing this would likely require a
-%    disproportionate effort.  In cases where the lack of kerning is
-%    unacceptable, a workaround is to add the punctuation mark to the
-%    field value manually.  For example, |title={...y,}| would
-%    generate the equivalent of |y,\SwapBreak{,}|, which in turn would
-%    produce ``y,\SwapBreak{,}'' since \cs{SwapBreak} is careful not
-%    to add duplicate punctuation.
-%    \end{bug}
-%    \begin{macrocode}
-\def\SwapBreak#1{%
-    \relax\ifvmode\leavevmode\fi
-    \@tempcnta\@MM
-    \toks@{#1}%
-%    \end{macrocode}
-%    First, remove any preceding glue.  (There usually shouldn't be
-%    any of this.)
-%    \begin{macrocode}
-    \unskip
-%    \end{macrocode}
-%    There might be also be kern, typically an italic correction left
-%    there by a previous \texttt{TextFontCommand} like \ncn{textit}.
-%    But don't remove the special 1\,sp kern used to mark the
-%    beginning of a bibliography entry.
-%
-%    \begin{bug}
-%    Sometimes we want to keep the italic correction.
-%    \end{bug}
-%    \begin{macrocode}
-    \ifnum \lastkern>\@ne \unkern \fi
-%    \end{macrocode}
-%    And now look for a penalty and stash it in a safe place.
-%    \begin{macrocode}
-    \ifnum\lastpenalty=\z@
-    \else
-        \@tempcnta\lastpenalty
-        \unpenalty
-    \fi
-%    \end{macrocode}
-%    Now we add the punctuation, \emph{unless} one of the following
-%    conditions is true:
-%    \begin{enumerate}
-%
-%    \item
-%    The last item on the horizontal list was a kern of~1\,sp,
-%    indicating that we're at the very beginning of a bibliography
-%    item.
-%
-%    \item
-%    The current space factor is equal to the \cs{sfcode} of the
-%    puncutation mark we are adding, meaning that the mark is already
-%    on the list.
-%
-%    \item
-%    The current space factor is equal to the special value
-%    |\@nopunctsfcode|, meaning that |\nopunct| was specified.
-%
-%    \end{enumerate}
-%    This relies on distinct punctuation marks having distinct space
-%    factors, as established by our definition of \cn{frenchspacing}.
-%    \begin{macrocode}
-    \edef\@tempa{%
-        \@nx\deferredquoteslogical
-        \ifnum\lastkern=\@ne
-        \else
-            \ifnum\spacefactor=\sfcode\@xp\@xp\@xp`\@xp\@car\string#1)\@nil
-            \else
-                \ifnum\spacefactor=\@nopunctsfcode
-                \else
-                    \the\toks@
-                \fi
-            \fi
-        \fi
-        \@nx\deferredquotes
-        \ifnum\@tempcnta=\@MM \else \penalty\number\@tempcnta\space \fi
-        \ifnum\lastkern=\@ne \ignorespaces \fi
-    }%
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\Plural}
-%    \begin{macro}{\SingularPlural}
-%    \cn{Plural} takes one argument and prints it if there were two or
-%    more elements in the current list. So, to get \qq{editors} instead
-%    of \qq{editor} after printing a list of editor names, write
-%    \verb'editor\Plural{s}'.
-%
-%    \cn{SingularPlural} takes two arguments and prints the first if
-%    there was only one element, otherwise prints the second arg.
-%    \begin{macrocode}
-\newcommand{\SingularPlural}[2]{#1}
-\newcommand{\Plural}{\SingularPlural{}}
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%
-% \subsection{Formatting names and series of names}\label{name-style}
-%
-%    Now that we have a general mechanism for formatting series, we
-%    can easily specialize to the common case of a comma-separated
-%    list of names.  First we provide specifications for the three
-%    most common name formats.
-%
-%    \begin{macro}{\setbib@nameLE}
-%    This sets a name in standard western uninverted order, e.g.,
-%    ``John Doe Jr.''  (The ``LE'' stands for little-endian.)
-%    \begin{macrocode}
-\BibSpec{nameLE}{
-    +{}{}{given}
-    +{}{\IfEmptyBibField{given}{}{ }}{surname}
-    +{}{ }{jr}
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\setbib@nameBE}
-%    Big-endian order, as used for example in traditional Chinese,
-%    Japanese, Vietnamese, and Hungarian names: ``Doe John''.
-%    Big-endian formatting can be requested for name by setting the
-%    ``inverted'' property to ``yes.''
-%    \begin{macrocode}
-\BibSpec{nameBE}{
-    +{}{}{surname}
-    +{}{ }{given}
-%    \end{macrocode}
-%    I don't know what should happen if there's a suffix, so I'm going
-%    to just leave it out for now (although I should probably issue a
-%    warning).  I suspect that either (a)~it never comes up or (b)~if
-%    it does come up, there's no set standard for how it should be
-%    handled.
-%    \begin{macrocode}
-%    +{}{ }{jr}
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\setbib@nameinverted}
-%    Inverted western-style names: ``Doe, John, Jr.''
-%    \begin{macrocode}
-\BibSpec{nameinverted}{
-    +{} {}  {surname}
-    +{,}{ } {given}
-    +{,}{ } {jr}
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    Incidentally, it would probably be cleaner if names had their
-%    own namespace like properties do, i.e., something like
-%    \begin{verbatim}
-%    \DefineSimpleKey{name}{given}
-%    \DefineSimpleKey{name}{initials}
-%    \DefineSimpleKey{name}{surname}
-%    \DefineSimpleKey{name}{jr}
-%\end{verbatim}
-%    followed by
-%    \begin{verbatim}
-%    \NameSpec{nameLE}{...}
-%\end{verbatim}
-%    or
-%    \begin{verbatim}
-%    \BibSpec[name]{nameLE}{...}
-%\end{verbatim}
-%    But this seems a little extravagant at this stage, so I've
-%    decided to leave things as-is for now.
-%
-%    \begin{macro}{\PrintNames}
-%    \cn{PrintNames} is a simplified interface to \cs{PrintSeries} that
-%    takes only the last three arguments:
-%    \begin{quote}\raggedright
-%    |\PrintNames {|$S$|} {|$E$|} {\name{|$T_1$|}|$\dots$|\name{|$T_n$|}}|
-%\end{quote}
-%    The order of the last two arguments is reversed to make it
-%    moderately easier to use; cf.\ \cn{PrintEditorsA}, etc.
-%
-%    The first name in a series is treated differently than the other
-%    names in the \opt{author-year} style, so we use a separate
-%    formatting macro for it.
-%    \begin{macrocode}
-\newcommand{\PrintNames}{%
-    \@ifstar{\PrintNames@a\set@othername}{\PrintNames@a\set@firstname}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintNames@a}
-%    \begin{macrocode}
-\newcommand{\PrintNames@a}[4]{%
-    \PrintSeries{\name}
-        {#1}
-        {}{ and \set@othername}
-        {,}{ \set@othername}
-        {,}{ and \set@othername}
-        {#2}{#4}{#3}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\set@firstname}
-%    By default, the first name is formatted in little-endian format.
-%    The \opt{author-year} option changes this to inverted order.
-%    \begin{macrocode}
-\def\set@firstname#1{%
-    \set@name{#1}\setbib@nameLE
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\set@othername}
-%    The rest of the names are set in little-endian format by
-%    default.
-%    \begin{macrocode}
-\def\set@othername#1{%
-    \set@name{#1}\setbib@nameLE
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\set@name}
-%    Parse the name into its components and then pass control to
-%    \cs{set@name@a}, which will decide what format to use for the
-%    name.
-%    \begin{macrocode}
-\def\set@name#1{%
-    \name@split#1,,,\@nil
-    \set@name@a
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\set@namea}
-%    Use the requested format unless the |order| property has been set
-%    to ``inverted.''
-%    \begin{macrocode}
-\def\set@name@a#1{%
-    \begingroup
-        \get@current@properties
-        \select@auxlanguage
-        \def\@tempa{yes}%
-        \ifx\@tempa\prop'inverted
-            \setbib@nameBE
-        \else
-            #1%
-        \fi
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintPrimary}
-%    \begin{macrocode}
-\def\PrintPrimary{%
-    \ifx\current@primary\@empty
-        \EmptyPrimaryWarning
-    \else
-        \print@primary\current@primary
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\EmptyPrimaryWarning}
-%    \begin{macrocode}
-\def\EmptyPrimaryWarning{%
-    \amsrefs@warning{No authors, editors or translators}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintAuthors}
-%    The comparison of \cs{previous@primary} and \cs{current@primary}
-%    doesn't look at auxiliary properties (see also \cs{PrintEditorsA}
-%    and \cs{PrintTranslatorsA}).  This is probably ok.
-%    \begin{macrocode}
-\newcommand{\PrintAuthors}[1]{%
-    \ifx\previous@primary\current@primary
-        \sameauthors\@empty
-    \else
-        \def\current@bibfield{\bib'author}%
-        \PrintNames{}{}{#1}%
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\sameauthors}
-%    \begin{macrocode}
-\newcommand{\sameauthors}[1]{\bysame#1}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bysame}
-%    \begin{macrocode}
-\def\bysame{%
-    \leavevmode\hbox to3em{\hrulefill}\thinspace
-    \kern\z@
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintNameList}
-%    This just prints the names without any additional information.
-%    \begin{macrocode}
-\newcommand{\PrintNameList}{\PrintNames{}{}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintEditorsC}
-%    \begin{macrocode}
-\newcommand{\PrintEditorsC}[1]{%
-    \PrintNames{Edited by }{}{#1}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintEditorsA}
-%    When we consider editor names we have to think about some further
-%    complications. First, for the case of a book where editor names are
-%    listed in place of author names, just copy the same style with a
-%    bit of added text at the end.
-%    \begin{macrocode}
-\newcommand{\PrintEditorsA}[1]{%
-    \ifx\previous@primary\current@primary
-        \sameauthors{(ed\Plural{s}.)}%
-    \else
-        \def\current@bibfield{\bib'editor}%
-        \PrintNames{}{ (ed\Plural{s}.)}{#1}%
-    \fi
-    \erase@field\bib'editor
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintEditorsB}
-%    \begin{macrocode}
-\newcommand{\PrintEditorsB}{%
-    \PrintNames*{(}{\SwapBreak{,}~ed\Plural{s}.)}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintContributions}
-%    \begin{macrocode}
-\newcommand{\PrintContributions}[1]{%
-    \PrintSeries
-        {\fld@elt}
-        {\print@contribution}
-        {}{ and \print@contribution}
-        {,}{ \print@contribution}
-        {,}{ and \print@contribution}{}{#1}{}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\print@contribution}
-%    \begin{macrocode}
-\newcommand{\print@contribution}[1]{%
-    \in@={#1}%
-    \ifin@
-        \ifnum\series@index=\@ne with \fi
-        \RestrictedSetKeys{}{bib}{%
-            \bib@print@inner\setbib@contribution{\the\rsk@toks}%
-        }{#1}%
-    \else
-        #1%
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\resolve@inner}
-%    \begin{macrocode}
-\def\resolve@inner#1#2{%
-    \in@={#2}%
-    \ifin@
-        \RestrictedSetKeys{}{bib}{#1{\the\rsk@toks}}{#2}%
-    \else
-        \@ifundefined{bi@#2}{%
-            \XRefWarning{#2}%
-        }{%
-            #1{\csname bi@#2\endcsname}%
-        }%
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintConference}
-%    \begin{macrocode}
-\def\PrintConference{%
-    \resolve@inner{\bib@print@inner\setbib@conference}
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintConferenceDetails}
-%    \begin{macrocode}
-\def\PrintConferenceDetails#1{%
-    \ifx\@empty\bib'address
-        \ifx\@empty\bib'date
-        \else
-            \PrintConferenceDetails@
-        \fi
-    \else
-        \PrintConferenceDetails@
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintConferenceDetails@}
-%    \begin{macrocode}
-\def\PrintConferenceDetails@{%
-    \ifnum\lastkern=\@ne\else\space\fi(\kern 1sp
-    \ifx\@empty\bib'address
-    \else
-        \bib'address
-    \fi
-    \ifx\@empty\bib'date
-    \else
-        \SwapBreak{,}\space
-        \print@date
-    \fi
-    )%\spacefactor\sfcode`\,%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintBook}
-%    \begin{macrocode}
-\def\PrintBook{%
-    \resolve@inner{\bib@print@inner\setbib@innerbook}
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintReprint}
-%    \begin{macrocode}
-\def\PrintReprint{%
-    \resolve@inner{\bib@reprint}
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bib@reprint}
-%    \begin{macrocode}
-\def\bib@reprint#1{%
-    \begingroup
-        #1\relax            % execute definitions locally
-        \bib@field@patches
-        \bib'setup
-        \IfEmptyBibField{copula}{reprinted in}{\bib'copula} \nopunct
-        \let\bib'language\@empty
-        \setbib@book
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintTranslation}
-%    \begin{macrocode}
-\def\PrintTranslation{%
-    \resolve@inner{\bib@translation}
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bib@translation}
-%    \begin{macrocode}
-\def\bib@translation#1{%
-    \begingroup
-        #1\relax            % execute definitions locally
-        \bib@field@patches
-        \bib'setup
-        \let\PrintPrimary\@empty
-        \bib@append{;}{ % keep this space!
-            \IfEmptyBibField{language}{English}{\bib'language} transl.%
-            \IfEmptyBibField{pages}{ in \kern\@ne sp}{, }%
-        }\bib'transition
-        \let\bib'language\@empty
-        \setbib@@
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintTranslatorsC}
-%    \begin{macrocode}
-\newcommand{\PrintTranslatorsC}[1]{%
-    \PrintNames{translated by }{}{#1}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintTranslatorsA}
-%    \begin{macrocode}
-\newcommand{\PrintTranslatorsA}[1]{%
-    \ifx\previous@primary\current@primary
-        \sameauthors{(trans.)}%
-    \else
-        \def\current@bibfield{\bib'translator}%
-        \PrintNames{}{ (trans.)}{#1}%
-    \fi
-    \erase@field\bib'translator
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintTranslatorsB}
-%    \begin{macrocode}
-\newcommand{\PrintTranslatorsB}[1]{
-    \PrintNames*{(}{\SwapBreak{,}~tran\Plural{s}.)}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    Some special handling for ``et alii'' or ``and others''.
-%    \begin{macrocode}
-\DefineName{alii}{\etaltext}
-\DefineName{others}{\etaltext}
-%    \end{macrocode}
-%
-%    \begin{macro}{\etaltext}
-%    \begin{macro}{\SubEtal}
-%    The Chicago Manual of Style suggests that it is slightly better not
-%    to italicize `et al' and some other extremely common abbreviations
-%    inherited from Latin. (Compare `etc'.)
-%    \begin{macrocode}
-\newcommand{\etaltext}{et al.}
-\newcommand{\SubEtal}[1]{\etaltext}
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%
-% \subsection{The \fld{partial} field}
-%
-%    \begin{macro}{\print@partial}
-%    \begin{macrocode}
-\newcommand{\print@partial}{%
-    \resolve@inner{\bib@print@inner\setbib@partial}
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsection{Special formatting for other fields}
-%
-%    \begin{macro}{\parenthesize}
-%    The \cn{parenthesize} function adds parentheses around its
-%    argument, calling \cn{upn} to optionally prevent italic
-%    parentheses from being used.
-%    \begin{macrocode}
-\newcommand{\parenthesize}[1]{%
-    \leavevmode\push@bracket)\upn{(}#1\pop@bracket
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\upn}
-%    By default, \cn{upn} is a no-op, meaning that this refinement
-%    lies dormant unless the \pkg{upref} package or other activation
-%    is done. (Probably better done via special fonts, anyway.)
-%    \begin{macrocode}
-\providecommand{\upn}[1]{#1}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\push@bracket}
-%    \begin{macro}{\pop@bracket}
-%    \begin{macrocode}
-\let\bracket@stack\@empty
-
-\def\push@bracket#1{%
-    \xdef\bracket@stack{#1\bracket@stack}%
-}
-
-\def\pop@bracket{%
-    \iffalse{\fi
-    \@xp\pop@bracket@a\bracket@stack \@empty}%
-}
-
-\def\pop@bracket@a#1{%
-    \leavevmode\/\upn{#1}%
-    \xdef\bracket@stack{\iffalse}\fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%
-%    \begin{macro}{\bibquotes}
-%    \begin{macrocode}
-\newcommand{\bibquotes}[1]{%
-    \textquotedblleft#1%
-    \gdef\deferredquotes{%
-        \global\let\deferredquotes\@empty
-        \textquotedblright
-    }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\mdash}
-%    \begin{macro}{\ndash}
-%    Cf.\@ \pkg{textcmds}, where there's also a penalty added.
-%    \begin{macrocode}
-\providecommand{\mdash}{\textemdash}
-\providecommand{\ndash}{\textendash}
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%
-%    \begin{macro}{\MR}
-%    \begin{macrocode}
-\def\MR#1{%
-    \relax\ifhmode\unskip\spacefactor3000 \space\fi
-    \def\@tempa##1:##2:##3\@nil{%
-        \ifx @##2\@empty##1\else\textbf{##1:}##2\fi
-    }%
-    \MRhref{#1}{MR \@tempa#1:@:\@nil}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\MRhref}
-%    For older versions of some AMS document classes, this patch is
-%    needed.
-%    \begin{macrocode}
-\providecommand{\MRhref}[1]{}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintReviews}
-%    Reviews are handled as a list to support the theoretical
-%    possibility of multiple reviews.
-%    \begin{macrocode}
-\newcommand{\PrintReviews}[1]{%
-    \PrintSeries{\fld@elt}{}{,}{ }{,}{ }{,}{ }{}{#1}{}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintPartials}
-%    \begin{macrocode}
-\newcommand{\PrintPartials}[1]{%
-    \PrintSeries
-        {\fld@elt}
-        {\print@partial}
-        {;}{ \print@partial}
-        {;}{ \print@partial}
-        {;}{ \print@partial}{}{#1}{}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintISBNs}
-%    And similarly for ISBNs. There seem to be a few different
-%    situations where one book might have two different ISBN numbers.
-%    Here are the ones I know of so far [mjd,2002-02-18]: separate ISBN
-%    numbers for hardback and paperback; separate ISBN numbers for U.S.
-%    edition and European edition.
-%    \begin{macrocode}
-\newcommand{\PrintISBNs}[1]{%
-    \PrintSeries{\fld@elt}{}{,}{ }{,}{ }{,}{ }{ISBN }{#1}{}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\voltext}
-%    \begin{macrocode}
-\newcommand{\voltext}{\IfEmptyBibField{series}{Vol.~}{vol.~}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\issuetext}
-%    \begin{macrocode}
-\newcommand{\issuetext}{no.~}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\DashPages}
-%    Scan the contents of a page value to see if it is a single page.
-%    Presence of \cn{ndash} or hyphen is taken to mean no. Probably
-%    should test also for spaces and commas. [mjd,2000/01/24]
-%    \begin{macrocode}
-\newcommand{\DashPages}[1]{%
-    p\pp@scan@a#1@\ndash p@\ndash{\pp@scan#1@-p@-{}\@nil}\@nil.~#1%
-}
-
-\def\pp@scan#1-#2@-#3#4\@nil{#3}
-
-\def\pp@scan@a#1\ndash#2@\ndash#3#4\@nil{#3}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\eprintpages}
-%    If we have eprint info and pages info and no journal name, the
-%    pages information is presumably the number of pages in the eprint.
-%    \begin{macrocode}
-\newcommand{\eprintpages}[1]{%
-    #1\IfEmptyBibField{eprint}{}{\IfEmptyBibField{journal}{ pp.}{}}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintThesisType}
-%    \begin{macrocode}
-\def\PrintThesisType#1{%
-    \thesis@type#1?\@nil{#1}%
-}
-
-\def\thesis@type#1#2\@nil#3{%
-    \ifx p#1%
-        Ph.D. Thesis%
-    \else
-        \ifx m#1%
-            Master's Thesis%
-        \else
-            #3%
-        \fi
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintDOI}
-%    Perhaps need to add allowbreak penalties at the parentheses in a DOI.
-%    Also what about prohibiting a break after the leading S?
-%    \begin{macrocode}
-\newcommand{\PrintDOI}[1]{%
-    DOI #1%
-    \IfEmptyBibField{volume}{, (to appear in print)}{}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintDatePV}
-%    Print date in different forms depending on DOI and volume
-%    information.
-%    \begin{macrocode}
-\newcommand{\PrintDatePV}[1]{%
-    \IfEmptyBibField{doi}{%
-        \let\@tempa\PrintDate
-    }{%
-        \IfEmptyBibField{volume}{%
-            \let\@tempa\PrintDatePosted
-        }{%
-            \let\@tempa\PrintDate
-        }%
-    }%
-    \@tempa{#1}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintDate}
-%    The intent is to handle variations such as \texttt{1987},
-%    \texttt{August 1987}, \texttt{1987-08}, and
-%    \texttt{1987-08-14}. If the month is present, print August or
-%    Aug. or 08 or nothing, at the behest of the bib style.
-%
-%    We've taken some special care to parse out the date info ahead of
-%    time, so this function just discards arg 1 and uses the
-%    already-parsed value.
-%    \begin{macrocode}
-\newcommand{\PrintDate}[1]{(\print@date)}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintDateB}
-%    The same, but without the parentheses.
-%    \begin{macrocode}
-\newcommand{\PrintDateB}[1]{\print@date}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\print@date}
-%    \begin{macrocode}
-\def\print@date{%
-    \ifx\bib@month\@empty
-    \else
-        \print@month@day
-    \fi
-    \bib@year
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\print@month@day}
-%    \begin{macrocode}
-\def\print@month@day{%
-    \bib@monthname
-    \ifx\@empty\bib@day \else \nobreakspace\number 0\bib@day,\fi
-    \space
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bib@monthname}
-%    With the Babel package, month names for a given language are
-%    typically available in a macro \cs{month@}\emph{language}:
-%    \begin{verbatim}
-%    \def\month@german{\ifcase\month\or
-%      Januar\or Februar\or M\"arz\or April\or Mai\or Juni\or
-%      Juli\or August\or September\or Oktober\or November\or Dezember\fi}
-%\end{verbatim}
-%    However this is not true for English.
-%    \begin{macrocode}
-\newcommand{\bib@monthname}{%
-    \ifcase 0\bib@month
-    \or January\or February\or March\or April\or May\or June\or
-      July\or August\or September\or October\or November\or December\or
-      Winter\or Spring\or Summer\or Fall\else Unknown Month%
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintYear}
-%    You can use \cn{PrintYear} if you want to suppress month/day even
-%    when supplied in the data.
-%    \begin{macrocode}
-\newcommand{\PrintYear}[1]{\bib@year}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintDatePosted}
-%    This one is special for AMS use.
-%    \begin{macrocode}
-\newcommand{\PrintDatePosted}[1]{\unskip,  posted on \print@date}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintEdition}
-%    \begin{macrocode}
-\newcommand{\PrintEdition}[1]{%
-    \afterassignment\print@edition
-    \count@ 0#1\relax\@nil
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\print@edition}
-%    If the number assignment swept up all the contents, produce a
-%    cardinal number from \cs{count@}.
-%    \begin{macrocode}
-\def\print@edition#1#2\@nil{%
-    \ifx\relax#1\relax
-        \ifnum\count@>\z@
-            \CardinalNumeric\count@
-        \else
-            ??th%
-        \fi
-        \ \editiontext
-    \else
-        \ifnum \count@>\z@ \number\count@ \fi
-        #1#2\relax
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\editiontext}
-%    \begin{macrocode}
-\newcommand{\editiontext}{ed.}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\CardinalNumber}
-%    \begin{macrocode}
-\newcommand{\CardinalNumeric}[1]{%
-    \number#1\relax
-    \if
-        \ifnum#1<14
-            \ifnum#1>\thr@@ T\else F\fi
-        \else
-            F%
-        \fi
-        T%
-            th%
-    \else
-        \@xp\keep@last@digit\@xp#1\number#1\relax
-        \ifcase#1th\or st\or nd\or rd\else th\fi
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\keep@last@digit}
-%    \begin{macrocode}
-\def\keep@last@digit#1#2{%
-    \ifx\relax#2%
-        \@xp\@gobbletwo
-    \else
-        #1=#2\relax
-    \fi
-    \keep@last@digit#1%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\SentenceSpace}
-%    Note how careful we are here to preserve \cn{frenchspacing}.
-%    \begin{macrocode}
-\newcommand{\SentenceSpace}{\relax\ifhmode\spacefactor`\. \fi}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\eprint}
-%    For now, this does nothing. Could do a url/hyperlink or something.
-%    \begin{macrocode}
-\newcommand{\eprint}[1]{\url{#1}}
-%    \end{macrocode}
-%    \end{macro}
-%    The \url{www.arXiv.org} recommendations for citing their eprints are
-%    found at \url{http://xxx.lanl.gov/help/faq/references}, including
-%    these examples:
-%    \begin{verbatim}
-%    arXiv:hep-th/9910001
-%    arXiv:math.AT/9910001
-%    arXiv:physics.acc-ph/9911027
-%\end{verbatim}
-%
-% \subsection{\BibTeX\ support}
-%
-%    \begin{macro}{\bibliographystyle}
-%    Disable \cn{bibliographystyle} since we're going to handle that
-%    behind the scenes.
-%    \begin{macrocode}
-\let\bibliographystyle\@gobble
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bibtex@style}
-%    \begin{macrocode}
-\def\bibtex@style{amsrn}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macrocode}
-\AtBeginDocument{
-    \if@filesw
-        \immediate\write\@auxout{\string\bibstyle{\bibtex@style}}%
-    \fi
-}
-%    \end{macrocode}
-%
-% \subsection{Implementing package options}
-%
-% \subsubsection{The \opt{alphabetic} option}
-%
-%    \begin{macrocode}
-\IfOption{alphabetic}{%
-    \def\bibtex@style{amsra}%
-    \def\alpha@label{%
-        \ifx\@empty\bib'label
-            \def\thebib{\CurrentBib}%
-        \else
-            \let\thebib\bib'label
-        \fi
-    }%
-    \let\generate@label\generate@alphalabel
-    \let\process@citelist\process@citelist@unsorted
-    \def\numeric@refs{01}%
-}{}
-%    \end{macrocode}
-%
-% \subsubsection{The \opt{shortalphabetic} option}
-% \label{opt:shortalphabetic}
-%
-%    \begin{macrocode}
-\IfOption{shortalphabetic}{%
-    \def\bibtex@style{amsrs}%
-    \def\alpha@label{%
-        \ifx\@empty\bib'label
-            \def\thebib{\CurrentBib}%
-        \else
-            \let\thebib\bib'label
-        \fi
-    }%
-    \let\@suffix@format\@arabic
-    \def\calc@author@part{%
-        \@xp\@multiauthorlabel\@xp{\@tempa}%
-    }%
-    \let\append@label@year\@empty
-    \let\generate@label\generate@alphalabel
-    \let\process@citelist\process@citelist@unsorted
-    \def\numeric@refs{01}%
-}{}
-%    \end{macrocode}
-%
-% \subsubsection{The \opt{backrefs} option}
-%
-%    \begin{macrocode}
-\IfOption{backrefs}{%
-    \let\PrintBackRefs\print@backrefs
-    \@ifundefined{Hy@backout}{%
-        \amsrefs@warning{backref option requires hyperref package}%
-    }{%
-        \let\BackCite\back@cite
-        \AtBeginDocument{\@starttoc{brf}{}}%
-    }%
-}{%
-}
-%    \end{macrocode}
-%
-% \subsubsection{The \opt{citation-order} option}
-%
-%    \begin{macrocode}
-\IfOption{citation-order}{%
-    \IfOption{alphabetic}{%
-        \amsrefs@warning@nl{%
-            The 'citation-order' and 'alphabetic' options are
-            incompatible%
-        }%
-    }{
-        \def\bibtex@style{amsru}%
-    }
-}{}
-%    \end{macrocode}
-%
-% \subsubsection{The \opt{initials} option}
-%
-%    \begin{macrocode}
-\IfOption{initials}{% TRUE:
-    \BibSpec{nameLE}{
-        +{}{}{initials}
-        +{}{\IfEmptyBibField{initials}{}{ }}{surname}
-        +{}{ }{jr}
-    }
-
-    \BibSpec{nameBE}{
-        +{}{}{surname}
-        +{}{ }{initials}
-    %    +{}{ }{jr}
-    }
-
-    \BibSpec{nameinverted}{
-        +{} {}  {surname}
-        +{,}{ } {initials}
-        +{,}{ } {jr}
-    }
-}{% initials? FALSE:
-%    \let\extract@initials\@gobble
-} % end conditional code for initials option
-%    \end{macrocode}
-%
-% \subsubsection{The \opt{jpa} option}
-%
-%    \begin{macrocode}
-\IfOption{jpa}{%
-    \amsrefs@warning{The 'jpa' option is obsolete}%
-    \typeout{Trying \string\usepackage{amsjpa} instead ...}%
-    \RequirePackage{amsjpa}[2000/02/02]
-}{}
-%    \end{macrocode}
-%
-% \subsubsection{The \opt{logical-quotes} option}
-%
-%    \begin{macro}{\deferredquotes}
-%    \begin{macrocode}
-\let\deferredquotes\@empty
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\deferredquoteslogical}
-%    \begin{macrocode}
-\IfOption{logical-quotes}{%
-    \def\deferredquoteslogical{\deferredquotes}%
-}{%
-    \let\deferredquoteslogical\relax
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \subsubsection{The \opt{non-compressed-cites} option}
-%
-%    \begin{macrocode}
-\IfOption{non-compressed-cites}{%
-    \let\cite@compress\cite@print
-}{}
-%    \end{macrocode}
-%
-% \subsubsection{The \opt{non-sorted-cites} option}
-%
-%    \begin{macrocode}
-\IfOption{non-sorted-cites}{%
-    \let\process@citelist\process@citelist@unsorted
-}{}
-%    \end{macrocode}
-%
-% \subsubsection{The \opt{short-journals} option}
-%
-%    \begin{macrocode}
-\IfOption{short-journals}{%
-    \renewcommand{\DefineJournal}[4]{%
-        \bib*{#1}{periodical}{
-            issn={#2},
-            journal={#3},
-        }%
-    }
-}{}
-%    \end{macrocode}
-%
-% \subsubsection{The \opt{short-publishers} option}
-%
-%    \begin{macrocode}
-\IfOption{short-publishers}{%
-    \renewcommand{\DefinePublisher}[4]{%
-        \bib*{#1}{publisher}{%
-            publisher={#2},%
-%    \end{macrocode}
-%    Maybe \opt{short-publishers} should suppress the \fld{address}?  Or
-%    is that a separate option?  I sense a combinatorial explosion
-%    coming on.\ldots
-%    \begin{macrocode}
-            address={#4},
-        }%
-    }%
-}{}
-%    \end{macrocode}
-%
-% \subsubsection{The \opt{short-months} option}
-%
-%    \begin{macrocode}
-\IfOption{short-months}{%
-    \renewcommand{\bib@monthname}{%
-        \ifcase 0\bib@month
-        \or Jan.\or Feb.\or Mar.\or Apr.\or May\or June\or
-          July\or Aug.\or Sep.\or Oct.\or Nov.\or Dec.\or
-          Winter\or Spring\or Summer\or Fall\else Unknown Month%
-        \fi
-    }%
-}{}
-%    \end{macrocode}
-%
-% \subsubsection{The \opt{y2k} option}
-%
-%    \begin{macrocode}
-\IfOption{y2k}{%
-    \IfOption{alphabetic}{%
-        \def\year@short#1\@nil{#1}%
-        \def\bibtex@style{amsry}%
-    }{%
-        \amsrefs@warning@nl{%
-            The 'y2k' option can only be used with the^^J%
-            'alphabetic' option%
-        }%
-}
-}{}
-%    \end{macrocode}
-%
-% \subsubsection{The \opt{bibtex-style} option}
-%
-%    \begin{macrocode}
-\IfOption{bibtex-style}{%
-    \RequirePackage{amsbst}
-}{}
-%    \end{macrocode}
-%
-% \subsubsection{The \opt{author-year} option}
-%
-%    Here ends the \pkg{amsrefs} package, unless the \opt{author-year}
-%    option is in effect; then we want to use some different
-%    bibspecs.
-%    \begin{macrocode}
-\IfOption{author-year}{}{\PopCatcodes \endinput}
-%    \end{macrocode}
-%
-%    \begin{macro}{\generate@label}
-%    \begin{macrocode}
-\def\generate@label{%
-%    \end{macrocode}
-%    If the user supplied an explicit \fld{label} field, we use it.
-%    Otherwise, we generate our own.
-%    \begin{macrocode}
-    \ifx\bib'label\@empty
-        \begingroup
-%    \end{macrocode}
-%    We begin by saving the previous stem and initializing the
-%    current stem to the empty string.
-%    \begin{macrocode}
-            \global\let\previous@stem\current@stem
-            \global\let\current@stem\@empty
-            \global\let\previous@year\current@year
-            \global\let\current@year\bib@year
-%    \end{macrocode}
-%    The list of primary contributors is available to us in
-%    \cs{current@primary} in the form
-%    \begin{quote}
-%    \cnm{name}{$\mathrm{Last}_1, \mathrm{First}_1$}%
-%    \cnm{name}{$\mathrm{Last}_2, \mathrm{First}_2$}
-%     \ldots
-%    \cnm{name}{$\mathrm{Last}_n, \mathrm{First}_n$}
-%    \end{quote}
-%    We will be executing this list multiple times with various
-%    definitions of \cs{name}.  So the first thing we want to do is
-%    establish a safe environment and normalize the names.
-%    \begin{macrocode}
-            \@apply\auto@protect\amsrefs@textsymbols
-            \@apply\auto@protect\amsrefs@textaccents
-            \def\name##1{\@nx\name{\lnscan@a##1,\@nil}}%
-            \auto@protect\etaltext
-            \normalize@edef\current@stem{\current@primary}%
-            \xdef\current@stem{\current@stem}%
-%    \end{macrocode}
-%    At this point, the \cs{current@stem} is complete and we're ready
-%    to determine what (if any) suffix is needed to disambiguate
-%    it from the previous label.
-%    \begin{macrocode}
-            \calc@alpha@suffix
-%    \end{macrocode}
-%    We have all the pieces now.  Arrange to end the current group and
-%    then define \cs{bib@label} in the enclosing group.  (This keeps
-%    \cs{bib@label} from being defined outside the group started by
-%    \cs{bib@start}.  This isn't strictly necessary, but it provides a
-%    bit of compartmentalization.)
-%    \begin{macrocode}
-            \edef\@tempa{%
-                \def\@nx\cite@label{\current@stem}%
-                \def\@nx\bib@label@year{%
-                    \current@year
-                    \alpha@label@suffix
-                }%
-            }
-        \@xp\endgroup
-        \@tempa
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\lnscan@a}
-%    \begin{macrocode}
-\def\lnscan@a#1,#2\@nil{#1}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citesel@author}
-%    \begin{macrocode}
-\def\citesel@author#1#2#3#4#5{\PrintCiteNames{#3}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citesel@authoryear}
-%    \begin{macrocode}
-\def\citesel@authoryear#1#2#3#4#5{\PrintCNY{#3}{#4}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citesel@object}
-%    \begin{macrocode}
-\def\citesel@object#1#2#3#4#5{\PrintCiteNames{#3} \citeleft#4}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citesel}
-%    \begin{macrocode}
-\let\citesel\citesel@authoryear
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\numeric@refs}
-%    \begin{macrocode}
-\def\numeric@refs{01}%
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citeleft}
-%    \begin{macrocode}
-\def\citeleft{(}%
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citeright}
-%    \begin{macrocode}
-\def\citeright{)}%
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@citeleft}
-%    \begin{macrocode}
-\def\@citeleft{\ifx\citesel\citesel@object\else\citeleft\fi}%
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citepunct}
-%    \begin{macrocode}
-\def\citepunct{; }
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\BibLabel}
-%    \begin{macrocode}
-\let\BibLabel\@empty
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\process@citelist}
-%    \begin{macrocode}
-\let\process@citelist\process@citelist@unsorted
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ycite}
-%    \begin{macrocode}
-\DeclareRobustCommand{\ycite}[1]{%
-    \star@{\cite@a\citesel@year{#1}}{}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ycites}
-%    \begin{macrocode}
-\DeclareRobustCommand{\ycites}[1]{%
-    \begingroup
-        \def\citepunct{, }%
-        \let\citesel\citesel@year
-        \cites{#1}%
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ocite}
-%    \begin{macrocode}
-\DeclareRobustCommand{\ocite}[1]{%
-    \star@{\cite@a\citesel@object{#1}}{}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ocites}
-%    \begin{macrocode}
-\DeclareRobustCommand{\ocites}[1]{%
-    \begingroup
-        \let\@citelist\@ocitelist
-        \cites{#1}%
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\ocitelist}
-%    \begin{macrocode}
-\def\@ocitelist#1{%
-    \PrintSeries{\InnerCite}%
-        {\ocite}%
-        {}{ and \ocite}%
-%    \end{macrocode}
-%    For three or more names: print `et al' instead of the last name.
-%    Have to putz around with the space factor a bit or the comma
-%    between name and year will not be applied.
-%    \begin{macrocode}
-        {,}{ \ocite}%
-        {,}{ and \ocite}%
-        {}%
-        {#1}%
-        {}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citeauthor}
-%    \begin{macrocode}
-\DeclareRobustCommand{\citeauthor}[1]{%
-    \star@{\cite@a\citesel@author{#1}}{}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\citeauthory}
-%    \begin{macrocode}
-\DeclareRobustCommand{\citeauthory}[1]{%
-    \citeauthor{#1} \ycite{#1}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\fullcite}
-%    \begin{macrocode}
-\DeclareRobustCommand{\fullcite}[1]{%
-    \begingroup
-        \let\print@citenames\CiteNamesFull
-        \star@{\cite@a\citesel@authoryear{#1}}{}%
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\fullocite}
-%    \begin{macrocode}
-\DeclareRobustCommand{\fullocite}[1]{%
-    \begingroup
-        \let\print@citenames\CiteNamesFull
-        \star@{\cite@a\citesel@object{#1}}{}%
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    Invert the first author's name.
-%    \begin{macrocode}
-\def\set@firstname#1{%
-    \set@name{#1}\setbib@nameinverted
-}
-%    \end{macrocode}
-%
-%    \begin{macro}{\PrintCNY}
-%    \begin{macrocode}
-\def\PrintCNY#1#2{%
-    \PrintCiteNames{#1}%
-    \@ifnotempty{#2}{\@addpunct{,} #2}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintCiteNames}
-%    \begin{macrocode}
-\def\PrintCiteNames#1{%
-    \leavevmode
-    \def\@tempa{#1}%
-    \ifx\@tempa\prev@names
-    \else
-        \gdef\prev@names{#1}%
-        \@xp\ifx\@car#1.\@nil\CitePrintUndefined
-            #1\relax
-        \else
-            \print@citenames{#1}%
-        \fi
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\CiteNames}
-%    \begin{macrocode}
-\newcommand{\CiteNames}[1]{%
-    \PrintSeries{\name}%
-        {}%
-        {}{ and }%
-%    \end{macrocode}
-%    For three or more names: print `et al' instead of the last name.
-%    Have to putz around with the space factor a bit or the comma
-%    between name and year will not be applied.
-%    \begin{macrocode}
-        {}{\@gobble}%
-        {}{ \etaltext\@\@gobble}%
-        {}%
-        {#1}%
-        {}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\print@citenames}
-%    \begin{macrocode}
-\let\print@citenames\CiteNames
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\CiteNamesFull}
-%    \begin{macrocode}
-\newcommand{\CiteNamesFull}[1]{%
-    \PrintSeries{\name}%
-        {}%
-        {}{ and }%
-%    \end{macrocode}
-%    For three or more names: print `et al' instead of the last name.
-%    Have to putz around with the space factor a bit or the comma
-%    between name and year will not be applied.
-%    \begin{macrocode}
-        {,}{ }%
-        {,}{ and }%
-        {}%
-        {#1}%
-        {}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintDate}
-%    No parentheses around the year.
-%    \begin{macrocode}
-\renewcommand{\PrintDate}[1]{\bib@label@year}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\print@date}
-%    Only print the year, not the month or day.
-%    \begin{macrocode}
-\def\print@date{%
-    \IfEmptyBibField{date}{%
-        \IfEmptyBibField{year}{\BibField{status}}{\bib@year}%
-    }{%
-        \bib@year
-    }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macrocode}
-\BibSpec{article}{%
-    +{}  {\PrintAuthors}                {author}
-    +{.} { \PrintDate}                  {date}
-    +{.} { \textit}                     {title}
-    +{.} { }                            {part}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintContributions}         {contribution}
-    +{.} { \PrintPartials}              {partial}
-    +{,} { }                            {journal}
-    +{}  { \textbf}                     {volume}
-    +{,} { \issuetext}                  {number}
-    +{,} { \eprintpages}                {pages}
-    +{,} { }                            {status}
-    +{,} { \PrintDOI}                   {doi}
-    +{,} { available at \eprint}        {eprint}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-
-\BibSpec{book}{%
-    +{}  {\PrintPrimary}                {transition}
-    +{.} { \PrintDate}                  {date}
-    +{.} { \textit}                     {title}
-    +{.} { }                            {part}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintEdition}               {edition}
-    +{}  { \PrintEditorsB}              {editor}
-    +{,} { \PrintTranslatorsC}          {translator}
-    +{,} { \PrintContributions}         {contribution}
-    +{,} { }                            {series}
-    +{,} { \voltext}                    {volume}
-    +{,} { }                            {publisher}
-    +{,} { }                            {organization}
-    +{,} { }                            {address}
-    +{,} { }                            {status}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-
-\BibSpec{collection.article}{%
-    +{}  {\PrintAuthors}                {author}
-    +{.} { \PrintDate}                  {date}
-    +{.} { \textit}                     {title}
-    +{.} { }                            {part}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintContributions}         {contribution}
-    +{,} { \PrintConference}            {conference}
-    +{}  {\PrintBook}                   {book}
-    +{,} { }                            {booktitle}
-    +{,} { pp.~}                        {pages}
-    +{,} { }                            {status}
-    +{,} { \PrintDOI}                   {doi}
-    +{,} { available at \eprint}        {eprint}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-
-\BibSpec{report}{%
-    +{}  {\PrintPrimary}                {transition}
-    +{.} { \PrintDate}                  {date}
-    +{.} { \textit}                     {title}
-    +{.} { }                            {part}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintEdition}               {edition}
-    +{,} { \PrintContributions}         {contribution}
-    +{,} { Technical Report }           {number}
-    +{,} { }                            {series}
-    +{,} { }                            {organization}
-    +{,} { }                            {address}
-    +{,} { \eprint}                     {eprint}
-    +{,} { }                            {status}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-
-\BibSpec{thesis}{%
-    +{}  {\PrintAuthors}                {author}
-    +{.} { \PrintDate}                  {date}
-    +{.} { \textit}                     {title}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintThesisType}            {type}
-    +{,} { }                            {organization}
-    +{,} { }                            {address}
-    +{,} { \eprint}                     {eprint}
-    +{,} { }                            {status}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\PopCatcodes
-%</pkg>
-%    \end{macrocode}
-%
-% \subsection{The \pkg{amsbst} package}
-%
-%    \begin{macrocode}
-%<*bst>
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\NeedsTeXFormat{LaTeX2e}[1995/12/01]
-\ProvidesPackage{amsbst}[2004/03/29 v1.68]
-%\RequirePackage{amsrefs}[2004/03/29]
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\BibSpec{article}{%
-    +{}  {\PrintAuthors}                {author}
-    +{.} { }                            {title}
-    +{.} { }                            {part}
-    +{:} { }                            {subtitle}
-    +{.} { \PrintContributions}         {contribution}
-    +{.} { \PrintPartials}              {partial}
-    +{.} { \emph}                       {journal}
-    +{}  { }                            {volume}
-    +{}  { \parenthesize}               {number}
-    +{:} {}                             {pages}
-    +{,} { \PrintDateB}                 {date}
-    +{,} { }                            {status}
-    +{.} { \PrintTranslation}           {translation}
-    +{.} { Reprinted in \PrintReprint}  {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-}
-
-\BibSpec{partial}{%
-    +{}  {}                             {part}
-    +{:} { }                            {subtitle}
-    +{.} { \PrintContributions}         {contribution}
-    +{.} { \emph}                       {journal}
-    +{}  { }                            {volume}
-    +{}  { \parenthesize}               {number}
-    +{:} {}                             {pages}
-    +{,} { \PrintDateB}                 {date}
-}
-
-\BibSpec{book}{%
-    +{}  {\PrintPrimary}                {transition}
-    +{.} { \emph}                       {title}
-    +{.} { }                            {part}
-    +{:} { \emph}                       {subtitle}
-    +{.} { }                            {series}
-    +{,} { \voltext}                    {volume}
-    +{.} { Edited by \PrintNameList}    {editor}
-    +{.} { Translated by \PrintNameList}{translator}
-    +{.} { \PrintContributions}         {contribution}
-    +{.} { }                            {publisher}
-    +{.} { }                            {organization}
-    +{,} { }                            {address}
-    +{,} { \PrintEdition}               {edition}
-    +{,} { \PrintDateB}                 {date}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{.} { \PrintTranslation}           {translation}
-    +{.} { Reprinted in \PrintReprint}  {reprint}
-    +{.} {}                             {transition}
-}
-
-\BibSpec{collection.article}{%
-    +{}  {\PrintAuthors}                {author}
-    +{.} { }                            {title}
-    +{.} { }                            {part}
-    +{:} { }                            {subtitle}
-    +{.} { \PrintContributions}         {contribution}
-    +{.} { \PrintConference}            {conference}
-    +{.} { \PrintBook}                  {book}
-    +{.} { In }                         {booktitle}
-    +{,} { pages~}                      {pages}
-    +{.} { \PrintDateB}                 {date}
-    +{.} { \PrintTranslation}           {translation}
-    +{.} { Reprinted in \PrintReprint}  {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-}
-
-\BibSpec{conference}{%
-    +{}  {}                        {title}
-    +{}  {\PrintConferenceDetails} {transition}
-}
-
-\BibSpec{innerbook}{%
-    +{.} { \emph}                       {title}
-    +{.} { }                            {part}
-    +{:} { \emph}                       {subtitle}
-    +{.} { }                            {series}
-    +{,} { \voltext}                    {volume}
-    +{.} { Edited by \PrintNameList}    {editor}
-    +{.} { Translated by \PrintNameList}{translator}
-    +{.} { \PrintContributions}         {contribution}
-    +{.} { }                            {publisher}
-    +{.} { }                            {organization}
-    +{,} { }                            {address}
-    +{,} { \PrintEdition}               {edition}
-    +{,} { \PrintDateB}                 {date}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-}
-
-\BibSpec{report}{%
-    +{}  {\PrintPrimary}                {transition}
-    +{.} { \emph}                       {title}
-    +{.} { }                            {part}
-    +{:} { \emph}                       {subtitle}
-    +{.} { \PrintContributions}         {contribution}
-    +{.} { Technical Report }           {number}
-    +{,} { }                            {series}
-    +{.} { }                            {organization}
-    +{,} { }                            {address}
-    +{,} { \PrintDateB}                 {date}
-    +{.} { \PrintTranslation}           {translation}
-    +{.} { Reprinted in \PrintReprint}  {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-}
-
-\BibSpec{thesis}{%
-    +{}  {\PrintAuthors}                {author}
-    +{,} { \emph}                       {title}
-    +{:} { \emph}                       {subtitle}
-    +{.} { \PrintThesisType}            {type}
-    +{.} { }                            {organization}
-    +{,} { }                            {address}
-    +{,} { \PrintDateB}                 {date}
-    +{.} { \PrintTranslation}           {translation}
-    +{.} { Reprinted in \PrintReprint}  {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-}
-%    \end{macrocode}
-%
-%    \begin{macro}{\PrintEditorsA}
-%    When we consider editor names we have to think about some further
-%    complications. First, for the case of a book where editor names are
-%    listed in place of author names, just copy the same style with a
-%    bit of added text at the end.
-%    \begin{macrocode}
-\renewcommand{\PrintEditorsA}[1]{%
-    \def\current@bibfield{\bib'editor}%
-    \PrintNames{}{, editor\Plural{s})}{#1}%
-    \erase@field\bib'editor
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\PrintTranslatorsA}
-%    \begin{macrocode}
-\renewcommand{\PrintTranslatorsA}[1]{%
-    \def\current@bibfield{\bib'translator}%
-    \PrintNames{}{, translator\Plural{s}}{#1}%
-    \erase@field\bib'translator
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macrocode}
-%</bst>
-%    \end{macrocode}
-%
-%    The usual \cs{endinput} to ensure that random garbage at the end of
-%    the file doesn't get copied by \fn{docstrip}.
-%    \begin{macrocode}
-\endinput
-%    \end{macrocode}
-%
-% \CheckSum{5005}
-% \Finale
diff --git a/Master/texmf-dist/source/latex/amslatex/amstext.dtx b/Master/texmf-dist/source/latex/amslatex/amstext.dtx
deleted file mode 100644
index 0ef49f67a64..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/amstext.dtx
+++ /dev/null
@@ -1,314 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amstext.dtx",
-%%%   version   = "2.01",
-%%%   date      = "2000/06/29",
-%%%   time      = "08:34:33 EDT",
-%%%   checksum  = "09860 314 1647 12368",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995, 1999 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Electronic Products and Services,
-%%%                P. O. Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   supported = "yes",
-%%%   keywords  = "latex, math, text",
-%%%   abstract  = "This is a \LaTeX{} package that defines a
-%%%                \cn{\text} macro, which makes it easy to
-%%%                incorporate fragments of text inside a displayed
-%%%                equation or a sub or superscript. Font sizes
-%%%                are automatically scaled in sub/superscripts.",
-%%%   docstring = "The checksum field above contains a CRC-16
-%%%                checksum as the first value, followed by the
-%%%                equivalent of the standard UNIX wc (word
-%%%                count) utility output of lines, words, and
-%%%                characters.  This is produced by Robert
-%%%                Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-% \iffalse
-%<*driver>
-\documentclass{amsdtx}
-\usepackage{amstext}
-\begin{document}
-\title{The \pkg{amstext} package}
-\author{Frank Mittelbach \and Rainer Sch\"opf}
-\date{Version \fileversion, \filedate}
-\hDocInput{amstext.dtx}
-\end{document}
-%</driver>
-% \fi
-%
-% \maketitle
-%
-% \MakeShortVerb\|
-%
-% \section{Introduction}
-%
-%    This style file implements the \AmSTeX{} macro \cn{text} for use
-%    with the new font selection scheme.  The \cn{text} macro is a
-%    sophisticated command which allows the user to insert ``normal text''
-%    into math formulas without worrying about correct sizes in sub- or
-%    superscripts. It can also be used in ordinary text; there it
-%    produces an unbreakable unit similar to \cn{mbox}.
-%
-%    Here is an example demonstrating some of its features:
-% \[
-%^^A mathbin spacing is nonscript glue, disappears in superscript
-%    x^{2\,\times\,\text{size of $y$}}
-%    \leq
-%    z_{i_{\text{upper bound of the array}}}
-% \]
-%    This was produced by
-% \begin{verbatim}
-% \[
-%    x^{2\,\times\,\text{size of $y$}}
-%    \leq
-%    z_{i_{\text{upper bound of the array}}}
-% \]
-% \end{verbatim}
-%
-%    Additionally this style file redefines an internal \fn{plain.tex}
-%    macro called \cs{mathhexbox} so that commands like \cn{dag}
-%    or \cn{P} will change sizes if used in math subscripts.
-%
-% \StopEventually{}
-%    Package information.
-%    \begin{macrocode}
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1994/12/01]% LaTeX date must be December 1994 or later
-\ProvidesPackage{amstext}[2000/06/29 v2.01]
-%    \end{macrocode}
-%
-% \section{The implementation}
-%    We need a few tools from \fn{amsgen.sty}.
-%    \begin{macrocode}
-\RequirePackage{amsgen}
-%    \end{macrocode}
-%
-% \begin{macro}{\text}
-%    Now we come to the \cn{text} macro which is used to place
-%    ordinary text inside of math formulas. If it is used outside
-%    math it will produce an unbreakable unit of text.
-%    \begin{macrocode}
-\DeclareRobustCommand{\text}{%
-  \ifmmode\expandafter\text@\else\expandafter\mbox\fi}
-%    \end{macrocode}
-%    At the present time (late 1994) the \latex/ internal function
-%    |\nfss@text| is used in |\ref|, in font commands like |\textbf|,
-%    and in a few text symbol definitions like |\$| and |\pounds|. By
-%    equating |\nfss@text| to |\text| we give it the ability of
-%    |\text| to change sizes properly if used in a subscript.
-%    \begin{macrocode}
-\let\nfss@text\text
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\text@}
-%    If \cn{text} is encountered inside math mode the macro
-%    \cs{text@} is called.  It has one mandatory argument, the text
-%    which should be produced.  Since we do not know in which math
-%    style we are currently in we call \cs{mathchoice} to tyeset
-%    our text in all four possible styles.
-%    \begin{macrocode}
-\def\text@#1{{\mathchoice
-%    \end{macrocode}
-%    To save token space we call a macro \cs{textdef@} which takes
-%    three arguments: the current math style, the corresponding size
-%    macro and the text to typeset possibly with some additional
-%    information for typesetting.
-%    \begin{macrocode}
-  {\textdef@\displaystyle\f@size{#1}}%
-%    \end{macrocode}
-%    The other three cases are similar except for the
-%    \cs{iffirstchoice} switch which we set to false. This is
-%    done to prevent \LaTeX{} macros like \cn{ref} or \cn{index}
-%    from writing their arguments more than once.
-%    \begin{macrocode}
-  {\textdef@\textstyle\f@size{\firstchoice@false #1}}%
-  {\textdef@\textstyle\sf@size{\firstchoice@false #1}}%
-  {\textdef@\textstyle \ssf@size{\firstchoice@false #1}}%
-%    \end{macrocode}
-%    Here we need to check whether a math size-change occurred inside
-%    the argument of \cn{text}. If so, restore
-%    \begin{macrocode}
-  \check@mathfonts
-  }%
-}
-%    \end{macrocode}
-%    The macros \cs{f@size}, \cs{sf@size} and \cs{ssf@size} hold the
-%    sizes which should be used when we are loading a new font for use
-%    in \cs{textfont}, \cs{scriptfont} and \cs{scriptscriptfont}. There
-%    is some question whether we should use use \cs{tf@size} or
-%    \cs{f@size} for the main size, but since the primary purpose of the
-%    \cn{text} macro is to switch back to text within a display, it
-%    seems that \cs{f@size} is the better choice. (Indeed it could be
-%    said that the \cn{text} actually provides two different functions:
-%    one for escaping out of math mode in a display to print some words,
-%    and the other for handling math objects that are named by a
-%    fragment of text, when \cn{operatorname} isn't the right choice.
-%    For the latter \cs{tf@size} might be more correct but for the
-%    former \cs{f@size} is clearly better.)
-% \end{macro}
-%
-% \begin{macro}{\textdef@}
-%    To typeset the argument of \cn{text} correctly we have to make
-%    several actions. We start by placing everything inside an
-%    \cs{hbox}.  But this is not enough: we need one extra level of
-%    grouping.  These extra braces are necessary because of the new
-%    font selection scheme which might produce an \cs{aftergroup}
-%    to globally restore some font values after the current group. To
-%    prevent any damage by this mechanism we add the braces thereby
-%    bringing the token inserted by \cs{aftergroup} inside the
-%    \cs{hbox}.\footnote{The mechanism will not produce a second
-%    \cs{aftergroup}. For more details see the technical documentation
-%    for NFSS2.}
-%    \begin{macrocode}
-\def\textdef@#1#2#3{\hbox{{%
-%    \end{macrocode}
-%    Since text typeset inside an \cs{hbox} always stays in the size
-%    of the text surrounding the formula we have to adjust this for
-%    script and scriptscript sizes.  For any math formula inside this
-%    argument this will be achieved by setting \cs{everymath} to
-%    the first argument of \cs{textdef@} since this argument
-%    contains the math size in the current typeset case of
-%    \cs{mathchoice}.
-%    Since \latex/ also knows about \cn{parbox}es and the
-%    \env{minipage} environment it might be neccessary to adjust
-%    \cs{everydisplay} too but this has to be tested further.
-%    \begin{macrocode}
-                    \everymath{#1}%
-%    \end{macrocode}
-%    The next line of code changes locally (i.e.\ inside the current
-%    \cs{hbox}) the value of \cs{f@size}. This macro holds the
-%    size for typesetting ordinary text (e.g.\ loading or selecting a
-%    new font via \cs{selectfont}). By changing it to a smaller
-%    value a following \cs{selectfont} will switch to the wanted
-%    size.
-%    \begin{macrocode}
-                    \let\f@size#2\selectfont
-%    \end{macrocode}
-%    Now we simply call the third argument and close all open groups.
-%    \begin{macrocode}
-                    #3}}}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\iffirstchoice@}
-%    Here is the switch that we use to decide if \cn{ref} etc.\
-%    should print its warnings.  The default is true since
-%    normally these warnings shouldn't be suppressed.
-%    \begin{macrocode}
-\newif\iffirstchoice@
-\firstchoice@true
-%    \end{macrocode}
-% \end{macro}
-%
-% \subsection{Re-definition of \latex/ macros to work with \cn{text}}
-%
-%    If a counter-changing command occurs inside the argument of
-%    \cn{text}, we don't want the counter to be changed four times
-%    because \cn{stepcounter} and \cn{addtocounter} have global effect.
-%    So we add the \cs{iffirstchoice@} test to make the counter
-%    operations execute only once.
-%
-% \begin{macro}{\stepcounter}
-%    Use \cs{def} rather than \cn{renewcommand*} because the star-form
-%    (for non-\cs{long} definitions) doesn't work with the June 1994
-%    release of \latex/.
-%    \begin{macrocode}
-\def\stepcounter#1{%
-  \iffirstchoice@
-     \addtocounter{#1}\@ne
-     \begingroup \let\@elt\@stpelt \csname cl@#1\endcsname \endgroup
-  \fi
-}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\addtocounter}
-%    \begin{macrocode}
-\def\addtocounter#1#2{%
-  \iffirstchoice@
-  \@ifundefined {c@#1}{\@nocounterr {#1}}%
-    {\global \advance \csname c@#1\endcsname #2\relax}%
-  \fi}
-%    \end{macrocode}
-% \end{macro}
-%
-%    For \cn{ref}, \cn{pageref}, and indeed anything else that issues a
-%    warning or error, \cn{text} will produce four copies of the
-%    warning/error message. To suppress the last three copies, we change
-%    \cs{GenericInfo}, \cs{GenericWarning}, \cs{GenericError}.
-%    \begin{macrocode}
-\let\m@gobble\@empty
-\@xp\let\csname m@gobble4\endcsname\@gobblefour
-\long\@xp\def\csname m@gobble6\endcsname#1#2#3#4#5#6{}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\toks@{%
-  \csname m@gobble\iffirstchoice@\else 4\fi\endcsname
-  \protect}
-\edef\GenericInfo{\the\toks@
-  \@xp\@nx\csname GenericInfo \endcsname}
-%
-\edef\GenericWarning{\the\toks@
-  \@xp\@nx\csname GenericWarning \endcsname}
-%
-\toks@{%
-  \csname m@gobble\iffirstchoice@\else 6\fi\endcsname
-  \protect}
-\edef\GenericError{\the\toks@
-  \@xp\@nx\csname GenericError \endcsname}
-%    \end{macrocode}
-%
-%    At one time \cn{label}, \cs{@wrindex} and \cs{@wrglossary} were
-%    changed here too to use the \cs{iffirstchoice@} test but it seems
-%    that was a mistake because those are non-immediate writes.
-%    Something like
-% \begin{verbatim}
-% \text{something \index{foo}}
-% \end{verbatim}
-%    within a math formula would therefore \emph{lose the index term} if
-%    the surrounding context was not displaystyle. (Unlikely in
-%    practice, but not impossible.) [mjd,1994/12/09]
-%
-%\subsection{Applications of \cn{text}}
-%
-% \begin{macro}{\mathhexbox}
-%    We start with an re-definition of the \fn{plain.tex} macro
-%    \cs{mathhexbox}. (Although M. Spivak in \amstex/ uses the name
-%    \cs{mathhexbox@} for this purpose, I [FMi] don't see any reason
-%    to use a new name since the new definition is superior, has the
-%    same syntax and is used for the same purpose.)
-%    \begin{macrocode}
-\begingroup \catcode`\"=12
-\gdef\mathhexbox#1#2#3{\text{$\m@th\mathchar"#1#2#3$}}
-\endgroup
-%    \end{macrocode}
-%    This redefinition means that now symbols like \S, \P, \dag, \ldots,
-%    which are defined via \cs{mathhexbox} in \fn{plain.tex} or
-%    elsewhere now correctly change sizes if they are used in math mode.
-% \end{macro}
-%
-%    The usual \cs{endinput} to ensure that random garbage at the end of
-%    the file doesn't get copied by \fn{docstrip}.
-%    \begin{macrocode}
-\endinput
-%    \end{macrocode}
-%
-% \CheckSum{129}
-% \Finale
diff --git a/Master/texmf-dist/source/latex/amslatex/amsxport.dtx b/Master/texmf-dist/source/latex/amslatex/amsxport.dtx
deleted file mode 100644
index 308a8c2698c..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/amsxport.dtx
+++ /dev/null
@@ -1,1822 +0,0 @@
-%%% ====================================================================
-%%% @BibTeX-source-file{
-%%%   filename  = "amsxport.dtx",
-%%%   version   = "2.00",
-%%%   date      = "2004/06/28",
-%%%   time      = "14:50:12 EDT",
-%%%   author    = "Michael J Downes",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support at ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "The BibTeX style file amsxport.bst produces .bbl
-%%%                entries where most of the database structure is
-%%%                retained. This is intended for processing by a smart
-%%%                bibliography package such as the amsrefs package.",
-%%%   checksum  = "40425 1822 6396 51551",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-% \iffalse
-%<*driver>
-\NeedsTeXFormat{LaTeX2e}
-\documentclass[draft,oneside]{amsdtx}[1999/11/01]
-
-\providecommand{\vn}[1]{\emph{#1}}% variable name
-
-\renewcommand*\descriptionlabel[1]{\hspace\labelsep
-                                \normalfont\bfseries #1:}
-
-%% Use normal typesize instead of \small for code listings.
-
-\def\MacroFont{%
-    \fontencoding\encodingdefault
-    \fontfamily\ttdefault
-    \fontseries\mddefault
-    \upshape
-}
-
-\makeatletter
-
-%% Don't prepend \ to macro names.
-
-\def\SpecialIndex@#1#2{%
-   \@SpecialIndexHelper@#1\@nil
-   \def\@tempb{ }%
-   \ifcat \@tempb\@gtempa
-      \special@index{\quotechar\space\actualchar
-                     \string\verb\quotechar*\verbatimchar
-                     \quotechar\space\verbatimchar#2}%
-   \else
-     \def\@tempb##1##2\relax{\ifx\relax##2\relax
-          \def\@tempc{\special@index{\quotechar##1\actualchar
-                      \string\verb\quotechar*\verbatimchar
-                      \quotechar##1\verbatimchar#2}}%
-        \else
-          \def\@tempc{\special@index{##1##2\actualchar
-                       \string\verb\quotechar*\verbatimchar
-                       ##1##2\verbatimchar#2}}%
-        \fi}%
-     \expandafter\@tempb\@gtempa\relax
-     \@tempc
-   \fi}
-
-\makeatother
-
-\PageIndex
-
-\begin{document}
-\title{The AMS Export Bib\TeX{} style [\fn{amsxport}]}
-\author{American Mathematical Society\\Michael Downes\\David M. Jones}
-\date{Version \fileversion, \filedate}
-\hDocInput{amsxport.dtx}
-\PrintIndex
-\end{document}
-%</driver>
-% \fi
-%
-% \MakeShortVerb{\|}
-%
-% \maketitle
-%
-% \tableofcontents
-%
-% \section{Introduction}
-%
-%    \bst{amsxport} is the collective name for a collection of
-%    \bibtex/ styles that form a bridge between \BibTeX\ and
-%    \pkg{amsrefs}. It produces output in which the structural
-%    information of the original \bibtex/ database file is
-%    retained. No ad hoc visual formatting is introduced that would
-%    hamper the application of alternative design specifications when
-%    rendering the information on paper or screen. This makes it
-%    possible to have \bibtex/ handle only extraction and sorting and
-%    leave the visual appearance to be controlled entirely by
-%    \latex/. The process of applying typical bibliography specs to
-%    exported data is illustrated in the \pkg{amsrefs} package. The
-%    authoritative description of the export format is in the
-%    \pkg{amsrefs} documentation, inasmuch as interpreting the format
-%    is the chief task of the \pkg{amsrefs} package.
-%
-%    Each of the five \fn{.bst} files generated from this file
-%    corresponds to a combination of \pkg{amsrefs} package options, as
-%    follows:
-%    \begin{description}
-%
-%    \item[amsrn]
-%
-%    This is the default style, used when none of the following is
-%    appropriate.
-%
-%    \item[amsru]
-%
-%    This is used when the \opt{citation-order} option is specified.
-%    It is identical to \bst{amsrn} except that the bibliography items
-%    are not sorted.
-%
-%    \item[amsra]
-%
-%    This is when with the \opt{alphabetic} option is specified, byt
-%    the \opt{y2k} option is \emph{not} also specified.
-%
-%    \item[amsry]
-%
-%    This is used when both the \opt{alphabetic} and \opt{y2k} options
-%    are specified.
-%
-%    \item[amsrs]
-%
-%    This is used when the \opt{shortalphabetic} option is specified.
-%
-%    \end{description}
-%
-%    Readers may wish to refer also to the standard \bibtex/
-%    documentation (\fn{btxdoc.tex}, \fn{btxhak.tex}, \fn{btxbst.doc})
-%    for background information.
-%
-% \StopEventually{}
-%
-% \section{Implementation}
-%
-%    The list below gives the fields that are expected to occur. (Other
-%    fields will be discarded without comment.)
-%    suggested fields.
-%    \begin{macrocode}
-%<*bst>
-ENTRY
-  {
-    address      institution  number       status
-    archive      isbn         organization subtitle
-    author       issn         pages        title
-    booktitle    journal      part         translator
-    chapter      key          pii          type
-    date         language     preprint     url
-    edition      meeting      publisher    volume
-    editor       month        review       xid
-    eprint       mrnumber     school       year
-    howpublished note         series
-  }
-  { }
-  { label }
-%    \end{macrocode}
-%
-% Some comments about specific fields:
-% \begin{description}
-% \item[archive] The archive that holds the eprint listed in the
-%    \fn{eprint} field.
-% \item[author] \bibtex/ doesn't allow this field (or any field) to be
-%    used more than once, but in the output its contents will be split
-%    into a separate key-value pair for each name. Likewise for
-%    \fn{editor} and \fn{translator}.
-% \item[crossref] This is a built-in field type, so it doesn't occur in
-%    the argument of ENTRY above.
-% \item[date] This is a generalization of the \fn{year} and \fn{month}
-%    fields. Its value should be written in ISO 8601 format, e.g.,
-%    1987-06-05; but the day and month are omissible, so this can be
-%    easily be used instead of the \fn{year} field.
-% \item[edition] For books. The \bibtex/ documentation suggests that the
-%    value of this field should be an ordinal word such as \qq{Second}.
-%    This may be because the \bibtex/ language provides only the weakest
-%    sort of support for an \emph{is-numeric} test.
-% \item[eprint] Electronic preprint information such as for
-%    \url{www.arXiv.org}.
-% \item[institution] What's the difference between an \fn{institution}
-%    and an \fn{organization}? The \bibtex/ documentation says that
-%    \fn{institution} should be used for technical reports and
-%    \fn{organization} for other entry types.
-% \item[isbn] International Standard Book Number.
-% \item[issn] International Standard Serial Number. See the discussion
-%    of journal abbreviations.
-% \item[language] Language of the work. This is especially desirable
-%    when the value of the title field is a translation of the true
-%    title (most often when the original language is one like Arabic or
-%    Chinese that poses rendering problems for non-native software).
-% \item[meeting] Since \bibtex/ doesn't allow a field name to be the
-%    same as a function name, we have to use \fn{meeting} instead of
-%    \fn{conference} if we want to give the title of a conference in a
-%    dedicated field.
-% \item[mrnumber] An alias for \fn{review} which we provide because
-%    MathSciNet has been using it in the \bibtex/ output that it
-%    provides for a couple of years already.
-% \item[organization] See the comment for \fn{institution}.
-% \item[pii] Publisher Item Identifier
-% \item[part] This is for a long journal article that is published in
-%    separate issues of the same journal. There should be a separate
-%    \bibtex/ entry for each part (though all the ones after part 1
-%    could crossref the first one).
-%
-% \item[preprint] It is not possible quite yet to assume that all
-%    preprints should be classified as eprints. If you have a preprint
-%    that is not an eprint, use this field to give the \qq{address}
-%    where the preprint may be found (institution, preprint number,
-%    etc.).
-%
-% \item[review] Review numbers or similar pointers, e.g., for
-%    Mathematical Reviews or Zentralblatt.
-%
-% \item[school] The analog of \qq{organization}, for a thesis.
-%
-% \item[status] Typically used for notes such as ``to appear'' or ``in
-%    preparation'' with journal articles.
-%
-% \item[subtitle] Typically used with a multipart journal article to
-%    give a subtitle for each part.
-%
-% \item[translator] This needs no explanation, surely? Except perhaps to
-%    note that the standard \bibtex/ styles don't provide it.
-%
-% \item[url] Universal Resource Locator.
-%
-% \item[xid] This is used by a cross-referenced item to pass its
-%    identity to child entries that refer to it. It would not be
-%    necessary if \bibtex/ left the \fn{crossref} field value
-%    accessible, but for some reason that I have not found yet (skimming
-%    in the source code) it is cleared internally before there is any
-%    opportunity to save it.
-%
-%    Practically speaking: For every \fn{crossref} in your \fn{.bib}
-%    files, the target should contain a matching \fn{xid} field.
-%
-% \end{description}
-%
-%    More on extra fields. In the Shelah bibliography, the \fn{author}
-%    field is given without any accents in the author names, and the
-%    normal \tex/ version of the author names is given in a separate
-%    field called \fn{trueauthor}.
-%
-%    Also, for MR reviews:
-%    \begin{verbatim}
-%    review = {MR 48:3735},
-%\end{verbatim}
-%    And for each author a country is indicated with the \fn{fromwhere}
-%    field, e.g.,
-%    \begin{verbatim}
-%    fromwhere = {UK, IL},
-%\end{verbatim}
-%    This means the first author is from the United Kingdom and the
-%    second one from Israel.
-%
-% \section{Macros for month names}
-%
-%    \begin{macrocode}
-MACRO {jan} {"-01"}
-MACRO {feb} {"-02"}
-MACRO {mar} {"-03"}
-MACRO {apr} {"-04"}
-MACRO {may} {"-05"}
-MACRO {jun} {"-06"}
-MACRO {jul} {"-07"}
-MACRO {aug} {"-08"}
-MACRO {sep} {"-09"}
-MACRO {oct} {"-10"}
-MACRO {nov} {"-11"}
-MACRO {dec} {"-12"}
-%    \end{macrocode}
-%
-%    Some scratch variables and global variables.
-%    \begin{macrocode}
-STRINGS { p s t l }
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-INTEGERS { len ptr }
-%<bst>
-%    \end{macrocode}
-%
-%    \begin{footnotesize}\itshape
-%    Note: \bibtex/ 0.99 requires a blank line in certain contexts, such
-%    as after the \fn{READ} command, and will choke if it is missing.
-%    When it is necessary to add a blank line at the boundary of a macro
-%    code section we use a \verb'<bst>' marker.\par
-%    \end{footnotesize}
-%
-%    Some utility functions.
-%    \begin{macrocode}
-FUNCTION {NOT} { { #0 } { #1 } if$ }
-
-FUNCTION {AND} { 'skip$ { pop$ #0 } if$ }
-
-FUNCTION {OR} { { pop$ #1 } 'skip$ if$ }
-
-FUNCTION {TRUE} { #1 }
-
-FUNCTION {FALSE} { #0 }
-%<bst>
-%    \end{macrocode}
-%
-%    \begin{macro}{incr.ptr}
-%    \begin{macrocode}
-FUNCTION {incr.ptr} { ptr #1 + 'ptr := }
-%<bst>
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{current.char}
-%    Returns: first character of STRING
-%    \begin{macrocode}
-FUNCTION {current.char} { ptr #1 substring$ }
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{copy.two.chars}
-%    The function \fn{copy.two.chars} appends the next two characters
-%    from s to STRING.
-%
-%    Arg: STRING (partial copy of pages string)
-%
-%    Returns: Modified version of STRING
-%
-%    Side effects: advances ptr
-%    \begin{macrocode}
-FUNCTION {copy.two.chars} { t * incr.ptr s current.char * incr.ptr }
-%<bst>
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{is.digit}
-%    \begin{macrocode}
-FUNCTION {is.digit} {
-    chr.to.int$
-    duplicate$
-    "0" chr.to.int$ #1 - >
-    swap$
-    "9" chr.to.int$ #1 + <
-    AND
-}
-%<bst>
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{is.lowercase.letter}
-%    In a previous implementation the \fn{is.letter} function first
-%    lowercased the character using \verb'change.case$', then tested it
-%    against the range a--z. But \verb'change.case$' issues a warning if
-%    it is applied to a lone brace character.
-%    \begin{macrocode}
-FUNCTION {is.lowercase.letter} {
-    chr.to.int$ duplicate$
-    "a" chr.to.int$ #1 - >
-    swap$
-    "z" chr.to.int$ #1 + <
-    AND
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{is.uppercase.letter}
-%    \begin{macrocode}
-FUNCTION {is.uppercase.letter} {
-    chr.to.int$ duplicate$
-    "A" chr.to.int$ #1 - >
-    swap$
-    "Z" chr.to.int$ #1 + <
-    AND
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{is.letter}
-%    \begin{macrocode}
-FUNCTION {is.letter} {
-    duplicate$
-    is.lowercase.letter
-        { pop$ TRUE }
-        { is.uppercase.letter }
-    if$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{skip.accent}
-%    This implementation of \fn{skip.accent} simply skips ahead one
-%    character whenever a backslash is found. This handles things like
-%    \verb'\v', \verb'\u', \verb'\k', \verb'\r'. Although this is overly
-%    simplistic it is still an improvement over the previous method
-%    which was to not even make the attempt. [mjd,2001-10-27]
-%    \begin{macrocode}
-FUNCTION {skip.accent} { pop$ incr.ptr }
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{strip.label}
-%    \begin{macrocode}
-FUNCTION {strip.label} {
-    's :=
-    #1 'ptr :=
-    ""
-    { s ptr #1 substring$ duplicate$ empty$ NOT }
-        { duplicate$ is.letter
-            { * }
-            { duplicate$ "\" =
-                { skip.accent }
-                'pop$
-              if$
-            }
-          if$
-          incr.ptr
-        }
-    while$
-%    \end{macrocode}
-%    When the loop ends we have an extra empty-string on top of the
-%    stack to get rid of.
-%    \begin{macrocode}
-    pop$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{sortify}
-%    \begin{macrocode}
-FUNCTION {sortify} {
-    purify$
-    "l" change.case$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{rpad}
-%    Warning: The use of |text.length$| here and in \fn{lpad}
-%    restricts their use to strings that we know do not contain any
-%    special characters.  Since we only use \fn{lpad} for field names
-%    and \fn{rpad} for |purify$|ed strings, this is ok.
-%
-%    \<string> \<int> \fn{rpad}
-%    \begin{macrocode}
-FUNCTION {rpad} {
-    swap$
-    'l :=
-    l text.length$ - 'len :=
-    { len #0 > }
-        {
-            l " " * 'l :=
-            len #1 - 'len :=
-        }
-    while$
-    l
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{lpad}
-%    \<string> \<int> \fn{lpad}
-%    \begin{macrocode}
-FUNCTION {lpad} {
-    swap$
-    'l :=
-    l text.length$ - 'len :=
-    { len #0 > }
-        {
-            " " l * 'l :=
-            len #1 - 'len :=
-        }
-    while$
-    l
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{field.or.null}
-%    \begin{macrocode}
-FUNCTION {field.or.null} {
-    duplicate$ empty$
-        { pop$ "" }
-        'skip$
-    if$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{missing.or.empty}
-%    \begin{macrocode}
-FUNCTION {missing.or.empty} { duplicate$ missing$ swap$ empty$ OR }
-%<bst>
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{append.ndash.and.skip.hyphens}
-%    The function \fn{append.ndash.and.skip.hyphens} adds \verb'\ndash'
-%    to STRING when a hyphen is found and advances ptr to the next
-%    non-hyphen character in \fn{s}.
-%
-%    Arg: STRING (partial copy of pages string)
-%
-%    Returns: modified version of STRING
-%
-%    Side effects: advances ptr
-%    \begin{macrocode}
-FUNCTION {append.ndash.and.skip.hyphens} {
-    "\ndash " *
-    incr.ptr
-    { s current.char "-" = }
-        { incr.ptr }
-    while$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{n.dashify}
-%    In the \fn{n.dashify} function we store the given string in \fn{s},
-%    push an empty string on the stack, and start examining the
-%    characters of \fn{s}. For a non-hyphen character, we just append a
-%    copy of it to the top string. For a hyphen, we append \cs{ndash} to
-%    the top string and advance the pointer until we reach a non-hyphen
-%    character. And there is one more exceptional case: for a backslash,
-%    we copy two characters instead of one. This keeps us from
-%    erroneously translating \verb'\-' to \verb'\\ndash'. One would
-%    scarcely expect to see an instance of \verb'\-' in a page number
-%    field but let's face it, in actual use nearly anything can and does
-%    happen.
-%
-%    Arg: STRING (value of \fn{pages} field)
-%
-%    Returns: STRING (dashified version of input string)
-%    \begin{macrocode}
-FUNCTION {n.dashify} {
-    's :=
-    #1 'ptr :=
-    ""
-    { s current.char 't :=  t "" = NOT }
-      { t "\" =
-          { copy.two.chars }
-          { t "-" =
-              { append.ndash.and.skip.hyphens }
-              { t * incr.ptr }
-            if$
-          }
-        if$
-      }
-    while$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{missing.warning}
-%    Standard warning message for a missing or empty field. For the user
-%    we call any such field `missing' without respect to the distinction
-%    made by \bibtex/ between missing and empty.
-%    \begin{macrocode}
-FUNCTION {missing.warning} {
-    "missing " swap$ * " in " * cite$ * warning$
-}
-%<bst>
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{string.length}
-%    Because \bibtex/ doesn't provide a straightforward
-%    \fn{string.length} function (\verb'text.length$' counts ``special
-%    characters'' as a single character), it appears necessary to
-%    implement one the hard way.
-%    \begin{macrocode}
-INTEGERS { string.ptr }
-
-FUNCTION {string.length} {
-    #1 'string.ptr :=
-    { duplicate$ string.ptr #1 substring$ "" = 'FALSE 'TRUE if$ }
-        { string.ptr #1 + 'string.ptr := }
-    while$
-    pop$
-    string.ptr #1 -
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{format.title}
-%    \begin{macrocode}
-FUNCTION {format.title}{
-    duplicate$
-    missing.or.empty
-        { pop$ "" }
-        { "t" change.case$ }
-    if$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{start.field}
-%    \begin{macrocode}
-FUNCTION {start.field} {
-    #12 lpad "={" * write$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{fin.field}
-%    \begin{macrocode}
-FUNCTION {fin.field} { "}," write$ newline$ }
-%<bst>
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{write.field}
-%    \begin{macrocode}
-FUNCTION {write.field} {
-    duplicate$
-    missing$
-        { pop$ missing.warning }
-        { duplicate$ empty$
-            { pop$ missing.warning }
-            { swap$ start.field write$ fin.field }
-          if$
-        }
-    if$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{optional.field}
-%    \begin{macrocode}
-FUNCTION {optional.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        { swap$ start.field write$ fin.field }
-    if$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{optional.title.field}
-%    \begin{macrocode}
-FUNCTION {optional.title.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        { format.title swap$ start.field write$ fin.field }
-    if$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{optional.pages.field}
-%    \begin{macrocode}
-FUNCTION {optional.pages.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        { swap$ start.field
-          n.dashify
-          write$ fin.field
-        }
-    if$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{optional.mr.field}
-%    \begin{macrocode}
-FUNCTION {optional.mr.field} {
-    duplicate$
-    missing.or.empty
-        { pop$ pop$ }
-        {
-          swap$ start.field
-          "\MR{" swap$ * "}" * write$ fin.field
-        }
-    if$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{remove.ordinal.suffix}
-%    \begin{macrocode}
-FUNCTION {remove.ordinal.suffix} {
-    's :=
-    s string.length 'len :=
-    #1 'ptr :=
-    { ptr len < s ptr #1 substring$ is.digit AND }
-        'incr.ptr
-    while$
-    s ptr global.max$ substring$ 'p :=
-    p "st" =
-        { TRUE }
-        { p "nd" =
-            { TRUE }
-            { p "rd" =
-                { TRUE }
-                { p "th" =
-                    { TRUE }
-                    { FALSE }
-                  if$
-                }
-              if$
-            }
-          if$
-        }
-    if$
-    { s #1 ptr #1 - substring$ }
-    { s }
-  if$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{optional.edition.field}
-%    \begin{macrocode}
-FUNCTION {optional.edition.field} {
-    duplicate$ missing.or.empty
-        { pop$ pop$ }
-        { swap$ start.field
-          remove.ordinal.suffix
-          write$ fin.field
-        }
-    if$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \section{Formatting author names and editor names}
-%
-%    Take a name list in \bibtex/ form (names separated by the word
-%    \qq{and}) and output the desired form of each name.
-%    \begin{macrocode}
-INTEGERS { nameptr numnames namesleft }
-STRINGS { namelist fieldname }
-%    \end{macrocode}
-%
-%    \begin{macro}{format.name}
-%    The \fn{format.name} function operates on a single name, producing
-%    a string of the form
-%    \begin{verbatim}
-%    von Last, First, Jr.
-%\end{verbatim}
-%
-%    Args: \vn{namelist}, \vn{index} (top; integer)
-%
-%    Returns: formatted version of the $n$th name in \vn{namelist} where
-%    integer \vn{index} specifies $n$.
-%    \begin{macrocode}
-FUNCTION {format.name} { "{vv~}{ll}{, ff}{, jj}" format.name$ }
-%<bst>
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{optional.name.field}
-%    The function \fn{optional.name.field} handles the task of splitting
-%    a multiple-name field value into multiple fields with single
-%    values.
-%
-%    Args: \vn{fieldname}, \vn{namelist} (top)
-%
-%    Side effects: writes a key/value pair to the output file for each
-%    name in \vn{namelist}.
-%    \begin{macrocode}
-FUNCTION {optional.name.field}{
-    duplicate$ missing.or.empty
-        { pop$ pop$ }
-        { swap$ 'fieldname :=
-          duplicate$ num.names$
-          'namesleft :=
-          #1 'ptr :=
-          { namesleft #0 > }
-            { fieldname start.field
-%    \end{macrocode}
-%    Copy the name string before running \fn{format.name} on it.
-%    \begin{macrocode}
-              duplicate$ ptr format.name write$
-              fin.field
-              ptr #1 + 'ptr :=
-              namesleft #1 - 'namesleft :=
-            }
-          while$
-%    \end{macrocode}
-%    At this point we have an extra copy of the name string on the
-%    stack.
-%    \begin{macrocode}
-        pop$
-        }
-    if$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \section{Handling year, month, date}
-%
-%    \begin{macro}{assemble.date.field}
-%    In the output we produce a \fn{date} field instead of the year and
-%    month fields normally used in \bibtex/ files. In the date field we
-%    use ISO date notation (e.g., 1987-06-05) to facilitate switching
-%    between full and abbreviated month names. The month and day parts
-%    are frequently absent, making the date field equivalent to a year
-%    field.
-%    \begin{macrocode}
-FUNCTION {assemble.date.field}
-{ date missing$
-    { year missing.or.empty
-        { status missing.or.empty
-            { "No year or other date information for "
-               cite$ * warning$ }
-            'skip$
-          if$
-          "status"
-        }
-        { year month missing$ { "" } { month } if$ * }
-      if$
-    }
-    { date }
-  if$
-%    \end{macrocode}
-%    If the date string is now equal to \qq{status}, it means that we
-%    have a status field or we already gave a warning about lack of date
-%    info; in either case omit the date field.
-%    \begin{macrocode}
-  duplicate$ "status" =
-    { pop$ pop$ }
-    { swap$ start.field write$ fin.field }
-  if$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \section{Journal abbreviations}
-%
-%    Use of journal abbreviations is recommended to make supplying ISSN
-%    numbers easier. To use this feature, you need a STRING definition
-%    of the form
-%    \begin{verbatim}
-%    @STRING{cpam="cpam/0010-3640/"
-%            #"Communications in Pure and Applied Mathematics"}
-%\end{verbatim}
-%    Then when you write
-%    \begin{verbatim}
-%    journal=cpam,
-%\end{verbatim}
-%    exporting with \fn{amsxport} will produce
-%    \begin{verbatim}
-%    journal={cpam},
-%    ISSN={0010-3640},
-%\end{verbatim}
-%    The text before the ISSN number in the STRING definition is
-%    preferably a repetition of the abbreviation name (leaving expansion
-%    to be done on the \latex/ side); or it could be the full journal
-%    name.
-%
-%    \textbf{Warning:} If you include braces and write
-%    \verb'journal={cpam},' \bibtex/ will not expand the abbreviation
-%    but leave it as the field value; and then you will not get
-%    automatic lookup of the ISSN number.
-%
-%    \begin{macro}{optional.journal.field}
-%    \begin{macrocode}
-FUNCTION {optional.journal.field} {
-    duplicate$ missing.or.empty
-        { pop$ pop$ }
-        {
-            's :=
-            start.field
-            #1 'ptr :=
-            s current.char is.lowercase.letter
-                {
-                    s "/" * 's :=
-                    { s ptr #1 substring$ "/" = NOT }
-                        { incr.ptr }
-                    while$
-%    \end{macrocode}
-%    Journal name started with a lowercase letter, but we couldn't find
-%    no slash? All right, just let it go through as it is.
-%    \begin{macrocode}
-                    s ptr #1 + #1 substring$ empty$
-                        { s #1 ptr #1 - substring$ }
-%    \end{macrocode}
-%    But if we did find a slash, then we probably have found us an ISSN
-%    number that we can write out.
-%    \begin{macrocode}
-                        {
-                            s #1 ptr #1 - substring$
-                            write$
-                            fin.field
-%    \end{macrocode}
-%    ISSNs are always nine characters in length (four digits, hyphen,
-%    four digits).
-%    \begin{macrocode}
-                            "ISSN" start.field
-                            s ptr #1 + #9 substring$
-                        }
-                    if$
-                }
-                { s }
-            if$
-            write$
-            fin.field
-        }
-    if$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \section{Type info}
-%
-%    \begin{macro}{optional.type.field}
-%    Putz around with the type info a little, for theses mainly. Two
-%    types here: the type field, and the entry type.
-%    \begin{macrocode}
-FUNCTION {optional.type.field}
-{ duplicate$ missing.or.empty
-    { type$ "mastersthesis" = { "Master's Thesis" }
-        { type$ "phdthesis" = { "Ph.D. Thesis" }
-          { "" } if$ } if$
-      swap$ pop$
-    }
-    'skip$
-  if$
-  duplicate$ empty$
-    { pop$ pop$ }
-    { swap$ start.field write$ fin.field }
-  if$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \section{Miscellaneous tail-end information}
-%
-%    \begin{macro}{url.note.status.review}
-%    The following items are common to all entry types are output at
-%    the tail end of the entry.
-%    \begin{macrocode}
-FUNCTION {url.note.status.review} {
-    "url" url optional.field
-    "note" note optional.field
-    "status" status optional.field
-%    \end{macrocode}
-%    The \fn{review} field should perhaps be translated into multiple
-%    fields like author names, if more than one review is given.
-%    \begin{macrocode}
-    "review" review optional.field
-%    \end{macrocode}
-%    Data from MathSciNet will have the Math Reviews number in an
-%    mrnumber field. We assume that a given entry will have a review
-%    field or an mrnumber field but not both.
-%    \begin{macrocode}
-    "review" mrnumber optional.mr.field
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \section{Wrapper for each entry}
-%
-%    \begin{macro}{start.entry}
-%    \begin{macrocode}
-FUNCTION {start.entry} {
-    newline$
-    "\bib{" cite$ * "}{" *
-%    \end{macrocode}
-%    Merge Master's thesis and Ph.D. thesis into a single type.
-%    \begin{macrocode}
-    type$ "mastersthesis" = type$ "phdthesis" =  OR
-        { "thesis" }
-        { type$ }
-    if$
-    * "}{" * write$
-    newline$
-%<*debug>
-    "sort.label" label sortify optional.field
-    "sort.key" sort.key$ optional.field
-%</debug>
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{fin.entry}
-%    \begin{macrocode}
-FUNCTION {fin.entry} {
-    "}" write$
-    newline$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \section{Entry types}
-%
-%    Here are the types of entries that are normally allowed in a
-%    \bibtex/ file:
-% \begin{description}
-%
-% \item[book] A book with an explicit publisher.
-%
-% \item[booklet] A work that is printed and bound, but without a named
-%    publisher or sponsoring institution.
-%
-% \item[inbook] A part of a book, which may be a chapter (or section or
-%    whatever) and/or a range of pages.
-%
-% \item[incollection] A part of a book having its own title.
-%
-% \item[manual] Technical documentation.
-%
-% \item[mastersthesis] A Master's thesis.
-%
-% \item[phdthesis] A PhD thesis.
-%
-% \item[proceedings] The proceedings of a conference.
-%
-% \item[techreport] A report published by a school or other institution,
-%    usually numbered within a series.
-%
-% \item[article] An article from a journal or magazine.
-%
-% \item[inproceedings] An article in a conference proceedings.
-%
-% \item[conference] An alias for \fn{inproceedings}.
-%
-% \item[unpublished] A document having an author and title, but not
-%    formally published.
-%
-% \item[misc] Use this type when nothing else fits.
-%
-% \end{description}
-%
-%    \begin{macro}{article}
-%    A journal article differs from an inproceedings article by not
-%    having booktitle, publisher, editor, and other such info.
-%    \begin{macrocode}
-FUNCTION {article} {
-    start.entry
-    "author" author optional.name.field
-    "translator" translator optional.name.field
-    "title" title format.title write.field
-    "subtitle" subtitle optional.title.field
-    "language" language optional.field
-    "organization" organization optional.field
-    "how" howpublished optional.field
-%    \end{macrocode}
-%    Construct a date value from date, year, month fields
-%    \begin{macrocode}
-    "date" assemble.date.field
-    "ISSN" issn optional.field
-    "journal" journal optional.journal.field
-    "volume" volume optional.field
-    "number" number optional.field
-    "pages" pages optional.pages.field
-    "PII" pii optional.field
-    "archive" archive optional.field
-    "eprint" eprint optional.field
-    "preprint" preprint optional.field
-    url.note.status.review
-    fin.entry
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{inproceedings}
-%    An inproceedings entry may have xid, booktitle, meeting, publisher
-%    info; it is not expected to have journal, eprint, or preprint info.
-%    \begin{macrocode}
-FUNCTION {inproceedings} {
-    start.entry
-    "author" author optional.name.field
-    "translator" translator optional.name.field
-    "title" title format.title write.field
-    "subtitle" subtitle optional.title.field
-    "language" language optional.field
-    "organization" organization optional.field
-    "how" howpublished optional.field
-%    \end{macrocode}
-%    Construct a date value from date, year, month fields
-%    \begin{macrocode}
-    "date" assemble.date.field
-    "xid" xid optional.field
-%    \end{macrocode}
-%    The following fields might be inherited from the parent of an
-%    article in a proceedings volume or collection.
-%    \begin{macrocode}
-    "conference" meeting optional.field
-    "booktitle" booktitle optional.title.field
-%    \end{macrocode}
-%    Include the edition in case this is an inbook entry.
-%    \begin{macrocode}
-    "edition" edition optional.edition.field
-    "editor" editor optional.name.field
-    "series" series optional.field
-    "volume" volume optional.field
-    "publisher" publisher optional.field
-    "address" address optional.field
-    "pages" pages optional.pages.field
-    url.note.status.review
-    fin.entry
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{inbook}
-%    \begin{macrocode}
-FUNCTION {inbook} { inproceedings }
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{incollection}
-%    \begin{macrocode}
-FUNCTION {incollection} { inproceedings }
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{inproceedings}
-%    \begin{macrocode}
-FUNCTION {conference} { inproceedings }
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{book}
-%    The book type includes a meeting field because otherwise we'd have
-%    to repeat the entire definition for the proceedings type with that
-%    as the sole difference.
-%    \begin{macrocode}
-FUNCTION {book} {
-    start.entry
-    "author" author optional.name.field
-    "editor" editor optional.name.field
-    "translator" translator optional.name.field
-    "title" title missing$ { booktitle } { title } if$
-       format.title write.field
-    "subtitle" subtitle optional.title.field
-    "type" type optional.type.field
-    "language" language optional.field
-    "conference" meeting optional.field
-    "edition" edition optional.edition.field
-    "series" series optional.field
-    "publisher" publisher optional.field
-    organization missing.or.empty
-        { "institution" institution optional.field }
-        { "organization" organization optional.field }
-    if$
-    "address" address optional.field
-    "how" howpublished optional.field
-    "date" year write.field
-    "volume" volume optional.field
-%    \end{macrocode}
-%    The number here is intended for a tech report.
-%    \begin{macrocode}
-    "number" number optional.field
-    "ISBN" isbn optional.field
-    url.note.status.review
-    fin.entry
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{booklet}
-%    \begin{macrocode}{booklet}
-FUNCTION {booklet} { book }
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{manual}
-%    \begin{macrocode}
-FUNCTION {manual} { book }
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{mastersthesis}
-%    \begin{macrocode}
-FUNCTION {mastersthesis} { book }
-
-FUNCTION {phdthesis} { book }
-
-FUNCTION {proceedings} { book }
-
-FUNCTION {collection} { book }
-
-FUNCTION {techreport} { book }
-
-FUNCTION {unpublished} { book }
-
-FUNCTION {misc} { book }
-
-FUNCTION {default.type} { misc }
-%<bst>
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \bibtex/ 0.99 keels over if READ does not have a blank line after
-%    it.
-%    \begin{macrocode}
-%<bst>
-READ
-%<bst>
-%    \end{macrocode}
-%
-% \section{Sorting the entries}
-%
-%    Since the final labels will be produced by the \pkg{amsrefs}
-%    package, we don't need to worry about generating suffixes to
-%    disambiguate between equal stems.  All we have to do is strive to
-%    generate stems that are identical to the ones that \pkg{amsrefs}
-%    will generate, so that \bst{amsxport} will sort its output in a
-%    fashion that will be consistent with the labels.
-%
-%    Overall, this simplifies our job, since we don't have to keep
-%    track of duplicate labels, so we can process each entry in
-%    isolation.  However, we do have to be more careful about the
-%    handling of text accents and text symbols in order to maintain
-%    compatibility with \pkg{amsrefs}.
-%
-%    See (\emph{inter alia}) the sections ``Lexical structure of
-%    names'' and ``Generating alphabetic lables'' in the
-%    \pkg{amsrefs} implementation documentation for more information.
-%
-%    \begin{macrocode}
-%<*sort>
-%    \end{macrocode}
-%
-%    \begin{macro}{chop.word}
-%    \begin{macrocode}
-FUNCTION {chop.word} {
-    's :=
-    'len :=
-    s #1 len substring$ =
-        { s len #1 + global.max$ substring$ }
-        's
-    if$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{sort.format.title}
-%    \begin{macrocode}
-FUNCTION {sort.format.title} {
-    't :=
-    "A " #2
-      "An " #3
-        "The " #4 t chop.word
-      chop.word
-    chop.word
-    sortify
-    #1 global.max$ substring$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{format.lab.names}
-%    \begin{macrocode}
-%<*alpha|short>
-FUNCTION {format.lab.names} {
-   's :=
-    s num.names$ 'numnames :=
-    numnames #1 >
-      { numnames #4 >
-          { #3 'namesleft := }
-          { numnames 'namesleft := }
-        if$
-        #1 'nameptr :=
-        ""
-          { namesleft #0 > }
-          { nameptr numnames =
-              { s nameptr "{ff }{vv }{ll}{ jj}" format.name$ "others" =
-                  { "{\etalchar{+}}" * }
-                  { s nameptr "{v{}}{l{}}" format.name$ * }
-                if$
-              }
-              { s nameptr "{v{}}{l{}}" format.name$ * }
-            if$
-            nameptr #1 + 'nameptr :=
-            namesleft #1 - 'namesleft :=
-          }
-        while$
-        numnames #4 >
-          { "{\etalchar{+}}" * }
-          'skip$
-        if$
-      }
-      { s #1 "{v{}}{l{}}" format.name$
-        duplicate$ text.length$ #2 <
-%<alpha>          { pop$ s #1 "{ll}" format.name$ #3 text.prefix$ }
-%<short>          { pop$ s #1 "{ll}" format.name$ #1 text.prefix$ }
-          'skip$
-        if$
-      }
-    if$
-}
-
-FUNCTION {author.key.label}
-{ author empty$
-    { key empty$
-	{ cite$ #1 #3 substring$ }
-	{ key #3 text.prefix$ }
-      if$
-    }
-    { author format.lab.names }
-  if$
-}
-
-FUNCTION {author.editor.key.label}
-{ author empty$
-    { editor empty$
-	{ key empty$
-	    { cite$ #1 #3 substring$ }
-	    { key #3 text.prefix$ }
-	  if$
-	}
-	{ editor format.lab.names }
-      if$
-    }
-    { author format.lab.names }
-  if$
-}
-
-FUNCTION {author.key.organization.label}
-{ author empty$
-    { key empty$
-	{ organization empty$
-	    { cite$ #1 #3 substring$ }
-	    { "The " #4 organization chop.word #3 text.prefix$ }
-	  if$
-	}
-	{ key #3 text.prefix$ }
-      if$
-    }
-    { author format.lab.names }
-  if$
-}
-
-FUNCTION {editor.key.organization.label}
-{ editor empty$
-    { key empty$
-	{ organization empty$
-	    { cite$ #1 #3 substring$ }
-	    { "The " #4 organization chop.word #3 text.prefix$ }
-	  if$
-	}
-	{ key #3 text.prefix$ }
-      if$
-    }
-    { editor format.lab.names }
-  if$
-}
-
-FUNCTION {calc.label}{
-    type$ "book" =  type$ "inbook" =  OR
-    'author.editor.key.label
-    { type$ "proceedings" =
-	'editor.key.organization.label
-	{ type$ "manual" =
-	    'author.key.organization.label
-	    'author.key.label
-	  if$
-	}
-      if$
-    }
-    if$
-    strip.label
-    sortify
-%<*alpha>
-    year field.or.null
-%<!y2k>    #3 #8 substring$
-    purify$ *
-%</alpha>
-    'label :=
-}
-%</alpha|short>
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{sort.format.names}
-%    \begin{macrocode}
-FUNCTION {sort.format.names} {
-    's :=
-    #1 'ptr :=
-    ""
-    s num.names$ 'numnames :=
-    numnames 'namesleft :=
-      { namesleft #0 > }
-      { ptr #1 >
-          { " " * }
-          'skip$
-        if$
-        s ptr "{ll}{ ff}{ jj}" format.name$ 't :=
-        ptr numnames = t "others" = AND
-          { "et al" }
-          { t sortify }
-        if$
-        #20 rpad *
-        ptr #1 + 'ptr :=
-        namesleft #1 - 'namesleft :=
-      }
-    while$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{sort.warning}
-%    \begin{macrocode}
-FUNCTION {sort.warning} {
-    "to sort, need " swap$ * " or key in " * cite$ * warning$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{author.sort}
-%    \begin{macrocode}
-FUNCTION {author.sort}
-{ author empty$
-    { key empty$
-        { "author" sort.warning
-          ""
-        }
-        { key sortify }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{author.editor.sort}
-%    \begin{macrocode}
-FUNCTION {author.editor.sort}
-{ author empty$
-    { editor empty$
-        { key empty$
-            { "author, editor," sort.warning
-              ""
-            }
-            { key sortify }
-          if$
-        }
-        { editor sort.format.names }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{author.organization.sort}
-%    \begin{macrocode}
-FUNCTION {author.organization.sort}
-{ author empty$
-    { organization empty$
-        { key empty$
-            { "author, organization," sort.warning
-              ""
-            }
-            { key sortify }
-          if$
-        }
-        { "The " #4 organization chop.word sortify }
-      if$
-    }
-    { author sort.format.names }
-  if$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{editor.organization.sort}
-%    \begin{macrocode}
-FUNCTION {editor.organization.sort}
-{ editor empty$
-    { organization empty$
-        { key empty$
-            { "editor, organization," sort.warning
-              ""
-            }
-            { key sortify }
-          if$
-        }
-        { "The " #4 organization chop.word sortify }
-      if$
-    }
-    { editor sort.format.names }
-  if$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{presort}
-%    \begin{macrocode}
-FUNCTION {presort} {
-%<*alpha|short>
-    calc.label
-    label #20 rpad
-%</alpha|short>
-    type$ "book" = type$ "inbook" = OR type$ "collection" = OR
-        'author.editor.sort
-        { type$ "proceedings" =
-            'editor.organization.sort
-            { type$ "manual" =
-                'author.organization.sort
-                'author.sort
-              if$
-            }
-          if$
-        }
-    if$
-%<alpha|short>    * " " *
-%<!alpha|short>    year field.or.null sortify #12 rpad * " " *
-    title field.or.null sort.format.title *
-    #1 entry.max$ substring$
-    'sort.key$ :=
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macrocode}
-ITERATE {presort}
-
-SORT
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-%</sort>
-%    \end{macrocode}
-%
-% \section{Final pass for output}
-%
-%    \begin{macro}{write.with.newlines}
-%    The \fn{write.with.newlines} functions stores a string in \fn{s}
-%    and runs through it looking for occurrences of \verb'^^M'; when one
-%    is found, the substring before it is written out with a newline,
-%    the remainder is left in \fn{s}, and the cycle begins again.
-%    \begin{macrocode}
-FUNCTION {write.with.newlines}
-{ 's :=  #1 'ptr :=
-  { s ptr #2 + #1 substring$ "" = NOT }
-  { s ptr #3 substring$ "^^M" =
-    { s #1 ptr #1 - substring$ write$ newline$
-      ptr #3 + 'ptr :=
-      s ptr global.max$ substring$ 's :=
-      #1 'ptr :=
-    }
-    { incr.ptr }
-    if$
-  }
-  while$
-  s write$ newline$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{begin.bin}
-%    \begin{macrocode}
-FUNCTION {begin.bib} {
-    preamble$ empty$
-        'skip$
-        { preamble$ write.with.newlines }
-    if$
-    "% \bib, bibdiv, biblist are defined by the amsrefs package."
-        write$ newline$
-    "\begin{bibdiv}" write$ newline$
-    "\begin{biblist}" write$ newline$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{end.bin}
-%    \begin{macrocode}
-FUNCTION {end.bib} {
-    newline$
-    "\end{biblist}" write$ newline$
-    "\end{bibdiv}" write$ newline$
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macrocode}
-EXECUTE {begin.bib}
-
-ITERATE {call.type$}
-
-EXECUTE {end.bib}
-%</bst>
-%    \end{macrocode}
-%
-% \section{Journal abbreviations}
-%
-%    By putting the ISSN into the \latex/ document, we make it easier to
-%    construct www queries from the bibliography data. These string
-%    definitions tie together journal abbreviations, ISSN numbers, and
-%    journal names.
-%
-% These are the journals that are cited most frequently by American
-% Mathematical Society authors at the present time (2000 CE).
-%
-% The format used here is designed to make it easy for BibTeX
-% to retrieve an ISSN number when given a journal abbreviation.
-%    \begin{macrocode}
-%<*abbrevs>
-@string{aa="aa/0065-1036/"
-  #"Acta Arithmetica"}
-@string{actamath="actamath/0001-5962/"
-  #"Acta Mathematica"}
-@string{asms="asms/0001-6969/"
-  #"Acta Scientiarum Mathematicarum"}
-@string{advmath="advmath/0001-8708/"
-  #"Advances in Mathematics"}
-@string{ajm="ajm/0002-9327/"
-  #"American Journal of Mathematics"}
-@string{amm="amm/0002-9890/"
-  #"American Mathematical Monthly"}
-@string{aifg="aifg/0373-0956/"
-  #"Annales de l'Institut Fourier"}
-@string{am2="am2/0003-486X/Annals of Mathematics"}
-@string{ap="ap/0091-1798/"
-  #"The Annals of Probability"}
-@string{asens4="asens4/0012-9593/"
-  #"Annales Scientifiques de l'\'{E}cole Normale Sup\'{e}rieure"}
-@string{amb="amb/0003-889X/Archiv der Mathematik"}
-@string{arma="arma/0003-9527/"
-  #"Archive for Rational Mechanics and Analysis"}
-@string{bamsn="bamsn/0273-0979/"
-  #"Bulletin (New Series) of the American Mathematical Society"}
-@string{bams="bams/0004-9727/"
-  #"Bulletin of the Australian Mathematical Society"}
-@string{blms="blms/0024-6093/"
-  #"Bulletin of the London Mathematical Society"}
-@string{bsmf="bsmf/0037-9484/"
-  #"Bulletin de la Soci\'{e}t\'{e} Math\'{e}matique de France"}
-@string{craspi="craspi/0764-4442/"
-  #"Comptes Rendus de l'Acad\'{e}mie des Sciences (Paris)"
-  #" S\'{e}rie I Math\'{e}matique"}
-@string{cjm="cjm/0008-414X/Canadian Journal of Mathematics"}
-@string{cmb="cmb/0008-4395/"
-  #"Canadian Mathematical Bulletin"}
-@string{colloqmath="colloqmath/0010-1354/"
-  #"Colloquium Mathematicum"}
-@string{commalgebra="commalgebra/0092-7872/"
-  #"Communications in Algebra"}
-@string{cmp="cmp/0010-3616/"
-  #"Communications in Mathematical Physics"}
-@string{cpam="cpam/0010-3640/"
-  #"Communications on Pure and Applied Mathematics"}
-@string{cmh="cmh/0010-2571/"
-  #"Commentarii Mathematici Helvetici"}
-@string{cvta="cvta/0278-1077/"
-  #"Complex Variables"}
-@string{compositiomath="compositiomath/0010-437X/"
-  #"Compositio Mathematica"}
-@string{c="c/0010-485X/Computing"}
-@string{constrapprox="constrapprox/0176-4276/"
-  #"Constructive Approximation"}
-@string{dmj="dmj/0012-7094/"
-  #"Duke Mathematical Journal"}
-@string{eraams="eraams/1079-6762/"
-  #"Electronic Research Announcements"
-  #" of the American Mathematical Society"}
-@string{etds="etds/0143-3857/"
-  #"Ergodic Theory and Dynamical Systems"}
-@string{fm="fm/0016-2736/"
-  #"Fundamenta Mathematicae"}
-@string{gd="gd/0046-5755/"
-  #"Geometriae Dedicata"}
-@string{illinoisjmath="illinoisjmath/0019-2082/"
-  #"Illinois Journal of Mathematics"}
-@string{iumj="iumj/0022-2518/"
-  #"Indiana University Mathematics"}
-@string{im="im/0020-9910/"
-  #"Inventiones Mathematicae"}
-@string{israeljmath="israeljmath/0021-2172/"
-  #"Israel Journal of Mathematics"}
-@string{iansm="iansm/??/"
-  #"Izvestiya Akademii Nauk SSSR. Seriya Matematicheskaya"}
-@string{ja="ja/0021-8693/"
-  #"Journal of Algebra"}
-@string{jams="jams/0894-0347/"
-  #"Journal of the American Mathematical Society"}
-@string{jam="jam/0021-7670/"
-  #"Journal d'Analyse Math\'{e}matique"}
-@string{jamm="jamm/0021-8928/"
-  #"Journal of Applied Mathematics and Mechanics"}
-@string{jat="jat/0021-9045/"
-  #"Journal of Approximation Theory"}
-@string{jamsa="jamsa/0263-6115/"
-  #"Journal of the Australian Mathematical Society"}
-@string{jcta="jcta/0097-3165/"
-  #"Journal of Combinatorial Theory"}
-@string{jde="jde/0022-0396/"
-  #"Journal of Differential Equations"}
-@string{jdg="jdg/0022-040X/Journal of Differential Geometry"}
-@string{jfa="jfa/0022-1236/"
-  #"Journal of Functional Analysis"}
-@string{jlms2="jlms2/0024-6107/"
-  #"Journal of the London Mathematical Society"}
-@string{jmaa="jmaa/0022-247X/"
-  #"Journal of Mathematical Analysis and Applications"}
-@string{jmp="jmp/0022-2488/"
-  #"Journal of Mathematical Physics"}
-@string{jmsj="jmsj/0025-5645/"
-  #"Journal of the Mathematical Society of Japan"}
-@string{jnt="jnt/0022-314X/Journal of Number Theory"}
-@string{jot="jot/0379-4024/"
-  #"Journal of Operator Theory"}
-@string{jpaa="jpaa/0022-4049/"
-  #"Journal of Pure and Applied Algebra"}
-% Braces instead of quotes, to hide the embedded \" control sequence
-@string{jram={jram/0075-4102/}
-  #{Journal f\"{u}r die Reine und Angewandte Mathematik}}
-@string{jsl="jsl/0022-4812/"
-  #"The Journal of Symbolic Logic"}
-@string{laa="laa/0024-3795/"
-  #"Linear Algebra and its Applications"}
-@string{mm="mm/0025-2611/"
-  #"Manuscripta Mathematica"}
-@string{matzametki="matzametki/0025-567X/Matematicheskie Zametki"}
-@string{ma="ma/0025-5831/"
-  #"Mathematische Annalen"}
-@string{mc="mc/0025-5718/"
-  #"Mathematics of Computation"}
-@string{mj="mj/0025-5513/"
-  #"Mathematica Japonica"}
-@string{mn="mn/0025-584X/Mathematische Nachrichten"}
-@string{mpcps="mpcps/0305-0041/"
-  #"Mathematical Proceedings of the"
-  #" Cambridge Philosophical Society"}
-@string{mrl="mrl/1073-2780/"
-  #"Mathematical Research Letters"}
-@string{ms="ms/0025-5521/"
-  #"Mathematica Scandinavica"}
-@string{mathz="mathz/0025-5874/"
-  #"Mathematische Zeitschrift"}
-@string{m="m/0025-5793/"
-  #"Mathematika"}
-@string{mmj="mmj/0026-2285/"
-  #"The Michigan Mathematical Journal"}
-@string{nmj="nmj/0027-7630/"
-  #"Nagoya Mathematical Journal"}
-@string{na="na/0362-546X/Nonlinear Analysis"}
-@string{nm="nm/0029-599X/Numerische Mathematik"}
-@string{ojm="ojm/0030-6126/"
-  #"Osaka Journal of Mathematics"}
-@string{pjm="pjm/0030-8730/"
-  #"Pacific Journal of Mathematics"}
-@string{pams="pams/0002-9939/"
-  #"Proceedings of the American Mathematical Society"}
-@string{pems2="pems2/0013-0915/"
-  #"Proceedings of the Edinburgh Mathematical Society"}
-@string{pjaa="pjaa/0386-2194/"
-  #"Proceedings of the Japan Academy"}
-@string{plms3="plms3/0024-6115/"
-  #"Proceedings of the London Mathematical Society"}
-@string{qjmo2="qjmo2/0033-5606/"
-  #"The Quarterly Journal of Mathematics"}
-@string{rmi="rmi/0213-2230/"
-  #"Revista Matem\'{a}tica Iberoamericana"}
-@string{rmjm="rmjm/0035-7596/"
-  #"Rocky Mountain Journal of Mathematics"}
-@string{sjam="sjam/0036-1399/"
-  #"SIAM Journal on Applied Mathematics"}
-@string{sjc="sjc/0097-5397/"
-  #"SIAM Journal on Computing"}
-@string{sjma="sjma/0036-1410/"
-  #"SIAM Journal on Mathematical Analysis"}
-@string{sjna="sjna/0036-1429/"
-  #"SIAM Journal on Numerical Analysis"}
-@string{sr="sr/0036-1445/"
-  #"SIAM Review"}
-@string{sm="sm/0039-3223/"
-  #"Studia Mathematica"}
-@string{tjm="tjm/0387-3870/"
-  #"Tokyo Journal of Mathematics"}
-@string{ta="ta/0166-8641/"
-  #"Topology and its Applications"}
-@string{t="t/0040-9383/"
-  #"Topology"}
-@string{tams="tams/0002-9947/"
-  #"Transactions of the American Mathematical Society"}
-%</abbrevs>
-%    \end{macrocode}
-%
-% \section{To Do}
-%
-% ---When there is no author or editor info to create a label from: Use
-%    the initial letters of all the words in the title. Plus the year.
-%    Maybe year first.
-%
-% ---Add linelength and indent options to control the output?
-%
-% ---Discuss apacite "originalfoo" fields etc.
-%
-% ---Discuss Beebe's work.
-%
-% ---Add bibliography.
-%
-% ---Add AUDIO, VIDEO entry types.
-%
-% ---Add a field for MR subject classification numbers and the like?
-%
-% ---Write a converter to convert from typical .bib data to preferred
-%    form. Have to go via perl or something to capture STRING defs and
-%    PREAMBLE and interspersed comments? Or emacs lisp? Provide .bst
-%    version as fallback.
-%
-% ---Alpha labels: add numbers after sorting? subscript option? L3Y2a
-%    option.
-%
-% ---Test multi-author articles with ten-plus authors. What happens
-%    with the alpha labels then?
-%
-% ---For url field especially, check length and prebreak by hand instead
-%    of relying on \bibtex/'s slapdash stick-in-a-percent-at-column-72
-%    regardless of where it happens to fall.
-%
-% ---How about a general `contributor' field.
-%
-% ---Test with a wimpy older version of \bibtex/.
-%
-% \CheckSum{24}
-% \Finale
diff --git a/Master/texmf-dist/source/latex/amslatex/amsxtra.dtx b/Master/texmf-dist/source/latex/amslatex/amsxtra.dtx
deleted file mode 100644
index b0f19da7d07..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/amsxtra.dtx
+++ /dev/null
@@ -1,136 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsxtra.dtx",
-%%%   version   = "1.2c",
-%%%   date      = "1999/11/15",
-%%%   time      = "14:15:41 EST",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995, 1999 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Electronic Products and Services,
-%%%                P. O. Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   checksum  = "41382 136 533 5124",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, accentedsymbol, fracwithdelims, sphat",
-%%%   supported = "yes",
-%%%   abstract  = "This package contains some seldom-used commands
-%%%                ported from AMS-TeX in 1989.",
-%%%   docstring = "The checksum field above contains a CRC-16
-%%%                checksum as the first value, followed by the
-%%%                equivalent of the standard UNIX wc (word
-%%%                count) utility output of lines, words, and
-%%%                characters.  This is produced by Robert
-%%%                Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-%\iffalse
-%<*driver>
-\documentclass{amsdtx}
-\begin{document}
-\title{The \pkg{amsxtra} package}
-\author{American Mathematical Society\\Michael Downes}
-\date{Version \fileversion, \filedate}
-\hDocInput{amsxtra.dtx}
-\end{document}
-%</driver>
-%\fi
-%
-% \maketitle
-%
-% \MakeShortVerb\|
-%
-% \section{Introduction}
-%    The \pkg{amsxtra} package contains a few rarely used commands that
-%    were present in version 1.1 of the \pkg{amstex} package:
-%    \cn{fracwithdelims}, {accentedsymbol}, \cn{sphat}, \cn{spcheck},
-%    \cn{sptilde}, \cn{spdot}, \cn{spddot}, \cn{spdddot}, \cn{spbreve}.
-%    If any of these commands were used in existing documents, the
-%    \pkg{amsxtra} package provides a way to get them. But for 99\% of
-%    documents using the \pkg{amstex} package these commands are just
-%    wasted overhead.
-%
-% \StopEventually{}
-%
-%    \begin{macrocode}
-\ProvidesPackage{amsxtra}[1999/11/15 v1.2c]
-%    \end{macrocode}
-%    We need to ensure that either the \pkg{amstex} package or the
-%    \pkg{amsmath} package is loaded. This means we need something a
-%    little more complicated than \cn{RequirePackage}.
-%    \begin{macrocode}
-\@ifpackageloaded{amstex}{}{%
-  \RequirePackage{amsmath}[1996/10/01 v1.2]}
-%    \end{macrocode}
-%
-%    Superscripted accent characters.
-%    \begin{macrocode}
-\def\sphat{^{\mathchoice{}{}%
- {\,\,\smash[b]{\hbox{\lower4\ex@\hbox{$\m@th\widehat{\null}$}}}}%
- {\,\smash[b]{\hbox{\lower3\ex@\hbox{$\m@th\hat{\null}$}}}}}}
-\def\spcheck{^\vee}
-\def\sptilde{^\sim}
-\def\spdot{^{\hbox{\raise\ex@\hbox{\normalfont .}}}}
-\def\spddot{^{\hbox{\raise\ex@\hbox{\normalfont ..}}}}
-\def\spdddot{^{\hbox{\raise\ex@\hbox{\normalfont...}}}}
-\def\spbreve{^{\!\smash[b]{\hbox{\lower4\ex@\hbox{\u{}}}}}}
-%    \end{macrocode}
-%
-%    The \cn{fracwithdelims} command is skipped if the base package is
-%    \pkg{amsmath}; it is only needed if the base package is
-%    \pkg{amstex}.
-%    \begin{macrocode}
-\@ifpackageloaded{amstex}{%
-\def\fracwithdelims#1#2{\new@ifnextchar[{\fracwithdelims@#1#2}%
-  {\fracwithdelims@#1#2[\@empty]}}
-\def\fracwithdelims@#1#2[#3]#4#5{\relax
-  \ifx\@empty#3{#4\overwithdelims#1#2#5}\else
-  {#4\abovewithdelims#1#2#3\relax#5}\fi}
-}{}
-%    \end{macrocode}
-%
-%    Perhaps |\accentedsymbol| should use |\newsavebox|, but I don't
-%    know of any compelling reason at the moment.[mjd,5-Sep-1994]
-%    |\accentedsymbol| can only produce a single size of
-%    the given symbol, so you'd need two different versions for main
-%    size and subscript size.
-%    \begin{macrocode}
-\def\accentedsymbol#1#2{%
-  \expandafter\newbox
-    \csname\expandafter\@gobble\string#1@box\endcsname
-  \expandafter\setbox
-    \csname\expandafter\@gobble\string#1@box\endcsname
-      \hbox{$\m@th#2$}%
-  \newcommand{#1}{%
-    \expandafter\copy
-      \csname\expandafter\@gobble\string#1@box\endcsname{}}%
-}
-%    \end{macrocode}
-%
-%    Change the definition of \qc{\~} to automatically remove a
-%    preceding space as well as a following space, if present.
-%    \begin{macrocode}
-\def~{\nobreakspace}
-\DeclareRobustCommand{\nobreakspace}{\unskip\nobreak\ \ignorespaces}
-%    \end{macrocode}
-%
-%    The usual \cs{endinput} to ensure that random garbage at the end of
-%    the file doesn't get copied by \fn{docstrip}.
-%    \begin{macrocode}
-\endinput
-%    \end{macrocode}
-%
-% \CheckSum{113}
-% \Finale
diff --git a/Master/texmf-dist/source/latex/amslatex/ifoption.dtx b/Master/texmf-dist/source/latex/amslatex/ifoption.dtx
deleted file mode 100644
index 4bb4670a72a..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/ifoption.dtx
+++ /dev/null
@@ -1,170 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-doc-source-file{
-%%%   filename  = "ifoption.dtx",
-%%%   version   = "1.02",
-%%%   date      = "2002/03/04",
-%%%   time      = "16:33:16 EST",
-%%%   author    = "Michael J Downes",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support@ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "",
-%%%   checksum  = "06695 170 563 5432",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-% \iffalse
-%<*driver>
-\NeedsTeXFormat{LaTeX2e}
-\documentclass{amsdtx}
-\providecommand{\mdash}{\textemdash}
-\newcommand{\xt}[1]{\texttt{#1}}
-\providecommand{\qq}[1]{``#1''}
-\providecommand{\lat}[1]{\protect\LaTeX{}}
-\begin{document}
-\title{The \pkg{ifoption} package}
-\author{Michael~J. Downes\\American Mathematical Society}
-\date{Version \fileversion, \filedate}
-\hDocInput{ifoption.dtx}
-\end{document}
-%</driver>
-% \fi
-%
-% \maketitle
-% \section{Introduction}
-%
-%    The \pkg{ifoption} package provides an \cn{IfOption} command that
-%    has certain advantages over the \cs{@ifpackagewith} command\mdash
-%    e.g., default options specified with \cs{ExecuteOptions} test as
-%    true rather than false. In order for this to work properly,
-%    mutually exclusive options should be specified with
-%    \cs{DeclareExclusiveOptions}, another command defined by the
-%    \pkg{ifoption} package.
-% \StopEventually{}
-%
-% \section{Implementation}
-% \subsection{Package info}
-%
-%    Standard declaration of package name and date.
-%    \begin{macrocode}
-\NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{ifoption}[2002/03/04 v1.02]
-%    \end{macrocode}
-%
-% \subsection{Some utility functions}
-%
-%    \begin{macrocode}
-\let\@xp\expandafter \let\@nx\noexpand
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\@True{00}
-\def\@False{01}
-%    \end{macrocode}
-%
-% \subsection{Background}
-%    See the definitions of \cs{@onefilewithoptions} and
-%    \cs{@pushfilename} in the \lat/ kernel.
-%
-%    When we have
-%\begin{verbatim}
-%\DeclareOption{foo}{some code}
-%\end{verbatim}
-%    in a file named \fn{bar.sty}, \lat/ defines \cs{ds@foo} to contain
-%    \emph{some code}. Then if the package is invoked with
-%\begin{verbatim}
-%\usepackage[foo]{bar}
-%\end{verbatim}
-%    there are two consequences: \opt{foo} is added to the options list
-%    for package \pkg{bar}, which is the control sequence
-%    \cs{opt@bar.sty}; and when \cs{ProcessOptions} is called, it
-%    executes \cs{ds@option-name} for each option found in the list.
-%    When it is finished running the options, \cs{ProcessOptions}
-%    undefines all the \cs{ds@whatever} for the current package, which
-%    are listed in the control sequence \cs{@declaredoptions}. At the
-%    end of \fn{bar.sty}, \cs{@declaredoptions} is globally reset to
-%    empty. Thus subordinate packages with options cannot be loaded in
-%    the \qq{first half} of a package that also has options, where first half
-%    means the area leading up to the \cs{ProcessOptions} call.
-%
-%    For mutually exclusive options \xt{a}, \xt{b}, \xt{c}, when option
-%    \xt{b} is invoked it should remove all of its sibling options from
-%    the options-actually-used list and add itself to the list. For this
-%    task we make use of the fact that \cs{ProcessOptions} ends by
-%    undefining all the declared options of the current package or
-%    documentclass.
-%
-%    \begin{macrocode}
-\def\CurrentPackage{\@currname}
-\let\CurrentClass\CurrentPackage
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\newcommand{\IfOption}{}
-\def\IfPackageOption{\@ifpackagewith}
-\def\IfClassOption{\@ifclasswith}
-\def\IfOption{%
-  \ifx\@currext\@pkgextension \@xp\IfPackageOption
-  \else \@xp\IfClassOption
-  \fi
-  \@currname
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\newcommand{\DeclareExclusiveOptions}[1]{%
-  \xdef\@declaredoptions{\@declaredoptions,#1}%
-  \gdef\ProcessExclusiveOptions{\relax}%
-  \@for\CurrOption:=#1\do{%
-    \@xp\deo@a\csname ds@\CurrOption\@xp\endcsname\@xp{\CurrOption}{#1}%
-  }%
-}
-\def\DeclareBooleanOption{\DeclareExclusiveOptions}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\deo@a#1#2#3{%
-  \def#1{%
-    \g@addto@macro\ProcessExclusiveOptions{\OptionsFalseTrue{#3}{#2}}%
-  }%
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\cull@options#1,{%
-  \@xp\ifx\csname ds@#1\@gobble\@percentchar\@empty\endcsname\@False
-  \else #1,\fi
-  \cull@options
-}
-
-\newcommand{\OptionsFalseTrue}[2]{%
-  \begingroup
-  \@for\CurrentOption:=#1\do{%
-    \@xp\let\csname ds@\CurrentOption\endcsname\@False
-  }%
-  \let\ds@\@False
-  \@xp\xdef\csname opt@\@currname.\@currext\endcsname{%
-    \@xp\@xp\@xp\cull@options\csname opt@\@currname.\@currext\endcsname
-%    \end{macrocode}
-%    Lacking \cs{@secondofthree} and not keen on defining it \ldots
-%    \begin{macrocode}
-      ,\@firstoftwo\@firstoftwo,#2%
-  }%
-  \endgroup
-}
-%    \end{macrocode}
-%
-%    The usual \cs{endinput} to ensure that random garbage at the end of
-%    the file doesn't get copied by \fn{docstrip}.
-%    \begin{macrocode}
-\endinput
-%    \end{macrocode}
-%
-% \CheckSum{112}
-% \Finale
diff --git a/Master/texmf-dist/source/latex/amslatex/mathscinet.dtx b/Master/texmf-dist/source/latex/amslatex/mathscinet.dtx
deleted file mode 100644
index 78e01159ad6..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/mathscinet.dtx
+++ /dev/null
@@ -1,595 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-doc-source-file{
-%%%   filename  = "mathscinet.dtx",
-%%%   version   = "2.01",
-%%%   date      = "2004/06/30",
-%%%   time      = "12:00:17 EDT",
-%%%   author    = "Michael J Downes and David M. Jones",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support@ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "",
-%%%   checksum  = "34681 595 2175 20194",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-%%%
-% \iffalse
-%<*driver>
-\NeedsTeXFormat{LaTeX2e}
-\documentclass[draft]{amsdtx}
-
-\usepackage{mathscinet}
-
-\newcommand{\uchar}[1]{{\small \texttt{U+#1}}}
-
-\newcommand{\enc}{\texttt}
-
-\newenvironment{chartable}{%
-    \begin{tabular}{%
-        l@{\extracolsep{1em}}%
-        l@{\extracolsep{1em}}%
-        r@{\extracolsep{2em}}%
-        l@{\extracolsep{1em}}%
-        l@{\extracolsep{1em}}%
-        r}%
-}{%
-    \end{tabular}%
-}
-
-\makeatletter
-
-\DeclareTextCommandDefault{\xudot}{\@underaccent\@empty{'137}}
-
-\makeatother
-
-\MakeShortVerb{\|}
-
-\begin{document}
-\title{The \pkg{mathscinet} package}
-\author{American Mathematical Society}
-\date{Version \fileversion, \filedate}
-\hDocInput{mathscinet.dtx}
-\end{document}
-%</driver>
-% \fi
-%
-% \maketitle
-% \section{Introduction}
-%
-%    The \pkg{mathscinet} packages provides definitions for certain
-%    commands that occasionally occur in bibliographic data exported
-%    from MathSciNet and that are not provided by \latex/.
-%
-%    \textbf{Warning:} Although the macros provided in this package
-%    are probably acceptable if all you need to do is format an entry
-%    downloaded from MathSciNet, they should probably not be used for
-%    other purposes.  In general, if you are trying to typeset
-%    material in any languages that require these characters, you are
-%    better off using specialized fonts and encodings for those
-%    languages.
-%
-%    All Unicode character references are taken from \emph{The Unicode
-%    Standard, Version~3.0} (Addison-Wesley, 2000).
-%
-% \StopEventually{}
-%
-% \section{Implementation}
-%    Standard declaration of package name and date.
-%    \begin{macrocode}
-\NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{mathscinet}[2002/04/17 v1.05]
-\RequirePackage{textcmds}\relax
-%    \end{macrocode}
-%
-%    \begin{macro}{\setboxz@h}
-%    A useful abbreviation borrowed from \pkg{amsgen}.
-%    \begin{macrocode}
-\providecommand\setboxz@h{\setbox\z@\hbox}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \subsection{Math font commands}
-%
-%    \begin{macro}{\bold}
-%    \begin{macro}{\scr}
-%    These are simple aliases of core \latex/ commands.
-%    \begin{macrocode}
-\providecommand{\bold}{\mathbf}
-\providecommand{\scr}{\mathcal}
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%
-%    \begin{macro}{\germ}
-%    Since this doesn't correspond to a core \latex/ command, we
-%    generate an error if no appropriate definition is available.
-%    \begin{macrocode}
-\AtBeginDocument{%
-    \@ifundefined{mathfrak}{%
-        \providecommand{\germ}{%
-            \PackageError{mathscinet}{To use the \string\germ\space
-                command, please load the amsfonts package}\@ehc
-        }%
-    }{%
-        \providecommand{\germ}{\mathfrak}%
-    }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\romsup}
-%    \begin{macro}{\asup}
-%    The \cs{tsup} command comes from the \pkg{textcmds} package.
-%    \begin{macrocode}
-\providecommand{\romsup}{\tsup}
-\providecommand{\asup}{\tsup}
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%
-%    \begin{macro}{\hslash}
-%    Planck's constant over~$2\pi$:~$\hslash$ (\uchar{210F}).
-%
-%    If the \pkg{amssymb} package isn't loaded, we just want this to
-%    be an alias for |\hbar|, which is defined in the \latex/ kernel
-%    (and then redefined by the \pkg{amssymb} package).  If the
-%    \pkg{amssymb} package is loaded, we want to use its definition
-%    of~|\hslash|.  To prevent problems if \pkg{amsrefs} is loaded
-%    before \pkg{amssymb}, we defer our definition of \cn{hslash}
-%    until after all packages have been loaded.
-%    \begin{macrocode}
-\AtBeginDocument{\providecommand{\hslash}{\hbar}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \subsection{Arabic transliteration}
-%
-%    \begin{macro}{\rasp}
-%    Transliteration of the Arabic letter \emph{hamza}
-%    (\uchar{0621}):~\rasp\ (\uchar{02BE}).
-%    \begin{macrocode}
-\ProvideTextCommandDefault{\rasp}{\leavevmode\raise.45ex\hbox{$\rhook$}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\lasp}
-%    Transliteration of the Arabic letter \emph{ain}
-%    (\uchar{0639}):~\lasp\ (\uchar{02BF}).
-%    \begin{macrocode}
-\ProvideTextCommandDefault{\lasp}{\leavevmode\raise.45ex\hbox{$\lhook$}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \subsection{Latin Extended-A (\texttt{latin1}) characters}
-%
-%    These are based on Barbara Beeton's definitions from
-%    \fn{amsclass.dtx}.
-%
-%    \begin{macro}{\Dbar}
-%    Latin capital letter D with stroke:~\Dbar\ (\uchar{0110}).  In the
-%    T1 encoding, we just use |\DJ|; otherwise we fake it.
-%    \begin{macrocode}
-\ProvideTextCommand{\Dbar}{T1}{\DJ}
-
-\ProvideTextCommandDefault{\Dbar}{%
-    \leavevmode\lower.5ex\rlap{\hskip-.07em\accent"16}D%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\dbar}
-%    Latin lower letter~d with stroke:~\dbar\ (\uchar{0111}).  In the
-%    T1 encoding, we just use |\dj|; otherwise we fake it.
-%    \begin{macrocode}
-\ProvideTextCommand{\dbar}{T1}{\dj}
-%    \end{macrocode}
-%    If it looks like this is a small-caps font, we adjust the spacing
-%    appropriately.
-%    \begin{macrocode}
-\ProvideTextCommandDefault{\dbar}{%
-    \begingroup
-        \edef\@tempa{\scdefault}%
-        \ifx\@tempa\f@shape
-            \dimen@-.75ex
-            \dimen@i-.08em
-        \else
-            \dimen@.02ex
-            \dimen@i.1em
-        \fi
-        \leavevmode\raise\dimen@\rlap{\hskip\dimen@i\char"16}d%
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \subsection{Cyrillic transliteration}
-%
-%    \begin{macro}{\cprime}
-%    Transliteration of the Cyrillic letter soft sign
-%    (\uchar{042C}):~\cprime.
-%    \begin{macrocode}
-\ProvideTextCommandDefault{\cprime}{\tprime}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cdprime}
-%    Transliteration of the Cyrillic letter hard sign
-%    (\uchar{042A}):~\cdprime.
-%    \begin{macrocode}
-\ProvideTextCommandDefault{\cdprime}{\tprime\tprime}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\bud}
-%    Ditto.
-%    \begin{macrocode}
-\ProvideTextCommandDefault{\bud}{\cdprime}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\cydot}
-%    Vertically centered dot.
-%    \begin{macrocode}
-\ProvideTextCommandDefault{\cydot}{\leavevmode\raise.4ex\hbox{.}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \subsection{Miscellaneous diacritics (aka Frankenstein's\\
-%    diacritics)}
-%
-%    \begin{macro}{\save@sf}
-%    When putting together an accented character from bits and pieces,
-%    the |\spacefactor| of the base character often gets lost in the
-%    shuffle.  We use essentialy the same technique as |\add@accent|
-%    to save and restore the spacefactor, but we wrap in in a pair of
-%    macros for convenience.
-%    \begin{macrocode}
-\def\save@sf{%
-    \ifmmode\else\global\mathchardef\accent@spacefactor\spacefactor\fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\restore@sf}
-%    And here's the corresponding restore.
-%    \begin{macrocode}
-\def\restore@sf{\ifmmode\else\spacefactor\accent@spacefactor\fi}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@underaccent}
-%    This is perhaps the most interesting macro in this package (which
-%    admittedly isn't saying much). It attempts to convert a character
-%    (usually one of the standard above-letter diacritics like~\"{})
-%    into an underhanging diacritic (like~\dudot{\hbox to
-%    .5em{\hss}}).  This is similar in spirit to the way that the
-%    \enc{OT1} \cn{b} command converts a macron into a bar-under
-%    accent, or the way that \cn{d} converts a period into an
-%    underhanging dot.  However, the technique used here is a little
-%    more complicated and, hopefully, a little more general, in the
-%    sense of requiring fewer ad-hoc parameters.  It only contains one
-%    magic constant (.2\,ex), which seems to provide reasonable
-%    results for all of the Computer Modern fonts.
-%
-%    The basic algorithm is as follows:
-%
-%    \begin{enumerate}
-%
-%    \item
-%    Create a box~$B$ containing the base character at its natural
-%    height, depth, and width.
-%
-%    \item
-%    Create a box~$d$ consisting of the diacritic centered in a space
-%    equal to the width of~$B$.
-%
-%    \item
-%    Lower box~$d$ by the sum of its height (to bring the top of~$d$
-%    down to the baseline) plus the depth of $B$ (to bring the top
-%    of~$d$ down to the bottom of~$B$) plus .2\,ex (to provide the
-%    spacing between the bottom of the letter and the top of the
-%    diacritic).  Call the new box~$d'$.
-%
-%    \item
-%    Create a new box~$C$ by superimposing boxes $B$ and~$d'$.
-%
-%    \item
-%    If the height of~$d$ was greater than 1\,ex, reset the depth of
-%    box~$C$ to the sum of the depth of~$B$ and 1\,ex less than the
-%    height of~$d$.  (See the appendix for a discussion of this step.)
-%
-%    \end{enumerate}
-%
-%    \begin{macrocode}
-\def\@underaccent#1#2#3{%
-    \leavevmode
-    \begingroup
-        \ifmmode\let\@mathtoggle$\else\let\@mathtoggle\relax\fi
-        \setboxz@h{\@mathtoggle#3\save@sf\@mathtoggle}%
-        \setbox\@ne\hb@xt@\wd\z@{%
-            \hss\fontshape\updefault\rmfamily#1\char#2\hss
-        }%
-        \dimen@\ht\@ne
-        \advance\dimen@\dp\z@
-        \advance\dimen@.2ex
-        \setboxz@h{\lower\dimen@\rlap{\copy\@ne}\unhbox\z@}%
-        \ifdim\ht\@ne>1ex
-            \advance\dimen@-1.2ex
-            \dp\z@\dimen@
-        \fi
-        \box\z@
-        \restore@sf
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\utilde}
-%    Tilde below (\uchar{0330}):
-%
-%    \begin{chartable}
-%    |\utilde{E}|   & \utilde{E}    & \uchar{1E1A} &
-%    |\utilde{e}|   & \utilde{e}    & \uchar{1E1B} \\
-%    |\utilde{I}|   & \utilde{I}    & \uchar{1E2C} &
-%    |\utilde{i}|   & \utilde{i}    & \uchar{1E2D} \\
-%    |\utilde{U}|   & \utilde{U}    & \uchar{1E74} &
-%    |\utilde{u}|   & \utilde{u}    & \uchar{1E75}
-%    \end{chartable}
-%    \begin{macrocode}
-\DeclareTextCommandDefault{\utilde}{\@underaccent\@empty{`\~}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\uarc}
-%    Breve below (\uchar{032E}):
-%
-%    \begin{chartable}
-%    |\uarc{H}| & \uarc{H}  & \uchar{1E2A} &
-%    |\uarc{h}| & \uarc{h}  & \uchar{1E2B}
-%    \end{chartable}
-%    \begin{macrocode}
-\DeclareTextCommandDefault{\uarc}{\@underaccent\@empty{'025}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\lfhook}
-%    Comma below (\uchar{0326}):
-%
-%    \begin{chartable}
-%    |\lfhook{S}|   & \lfhook{S}    & \uchar{0218} &
-%    |\lfhook{s}|   & \lfhook{s}    & \uchar{0219} \\
-%    |\lfhook{T}|   & \lfhook{T}    & \uchar{021A} &
-%    |\lfhook{t}|   & \lfhook{t}    & \uchar{021B}
-%    \end{chartable}
-%    \begin{macrocode}
-\DeclareTextCommandDefault{\lfhook}{\@underaccent\supsize{`\,}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\dudot}
-%    Diaeresis below (\uchar{0324}):
-%
-%    \begin{chartable}
-%    |\dudot{U}|   & \dudot{U}    & \uchar{1E72} &
-%    |\dudot{u}|   & \dudot{u}    & \uchar{1E73}
-%    \end{chartable}
-%    \begin{macrocode}
-\DeclareTextCommandDefault{\dudot}{\@underaccent\@empty{'177}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\udot}
-%    Dot below (\uchar{0323}): There are two options for implementing
-%    this: either map to the standard \cn{d} accent or define using
-%    \cs{@underaccent}.  If we choose the former, we have two
-%    problems: (a)~when applied to capital letters, the standard
-%    \enc{T1} and \enc{OT1} implementations of~|\d| produce
-%    \cs{spacefactor}s of~1000 instead of~999, and (b)~the
-%    underspacing of the \cs{udot} accent will differ from that of the
-%    \cs{dudot} accent:~\udot{x}\dudot{x}.  On the other hand, if we
-%    choose the latter, course, \cn{d} and \cn{udot} will
-%    differ:~\d{x}\xudot{x}.
-%    Neither solution appeals, but it's easier to stick with~\cs{d},
-%    so that's what I'll do.
-%    \begin{macrocode}
-\DeclareTextCommandDefault{\udot}{\d}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\polhk}
-%    Ogonek (Polish hook) (\uchar{0328}):
-%
-%    \begin{chartable}
-%    |\polhk{A}| & \polhk{A} & \uchar{0104} &
-%    |\polhk{a}| & \polhk{a} & \uchar{0105} \\
-%    |\polhk{E}| & \polhk{E} & \uchar{0118} &
-%    |\polhk{e}| & \polhk{e} & \uchar{0119} \\
-%    |\polhk{I}| & \polhk{I} & \uchar{012E} &
-%    |\polhk{i}| & \polhk{i} & \uchar{012F} \\
-%    |\polhk{U}| & \polhk{U} & \uchar{0172} &
-%    |\polhk{u}| & \polhk{u} & \uchar{0173} \\
-%    |\polhk{O}| & \polhk{O} & \uchar{01EA} &
-%    |\polhk{o}| & \polhk{o} & \uchar{01EB}
-%    \end{chartable}
-%
-%    The \enc{T1} and \enc{OT4} encodings implement the |\k| accent,
-%    so we just use it for most characters, although we will
-%    supplement them later with
-%    \begin{macrocode}
-\DeclareTextCommand{\polhk}{OT4}{\k}
-\DeclareTextCommand{\polhk}{T1}{\k}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\DeclareTextCommand{\polhk}{OT1}[1]{\TextSymbolUnavailable{\k{#1}}#1}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\DeclareTextCompositeCommand{\polhk}{OT1}{a}{\msc@ogonek {.6}{.07} a}
-\DeclareTextCompositeCommand{\polhk}{OT1}{A}{\msc@ogonek {.6}{.07} A}
-\DeclareTextCompositeCommand{\polhk}{OT1}{e}{\msc@ogonek   0 {.06} e}
-\DeclareTextCompositeCommand{\polhk}{OT1}{E}{\msc@ogonek{.35}{.07} E}
-\DeclareTextCompositeCommand{\polhk}{OT1}{i}{\msc@ogonek {.2}{.07} i}
-\DeclareTextCompositeCommand{\polhk}{OT1}{I}{\msc@ogonek {.2}{.07} I}
-\DeclareTextCompositeCommand{\polhk}{OT1}{u}{\msc@ogonek {.6}{.07} u}
-\DeclareTextCompositeCommand{\polhk}{OT1}{U}{\msc@ogonek   0 {.05} U}
-\DeclareTextCompositeCommand{\polhk}{OT1}{o}{\msc@ogonek   0 {.07} o}
-\DeclareTextCompositeCommand{\polhk}{OT1}{O}{\msc@ogonek   0 {.05} O}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\DeclareTextCompositeCommand{\polhk}{T1}{i}{\msc@ogonek@a   0  i}
-\DeclareTextCompositeCommand{\polhk}{T1}{I}{\msc@ogonek@a   0  I}
-\DeclareTextCompositeCommand{\polhk}{T1}{u}{\msc@ogonek@a {.6} u}
-\DeclareTextCompositeCommand{\polhk}{T1}{U}{\msc@ogonek@a   0  U}
-\DeclareTextCompositeCommand{\polhk}{T1}{o}{\msc@ogonek@a   0  o}
-\DeclareTextCompositeCommand{\polhk}{T1}{O}{\msc@ogonek@a   0  O}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\DeclareTextCompositeCommand{\polhk}{OT4}{i}{\msc@ogonek {.2}{.07} i}
-\DeclareTextCompositeCommand{\polhk}{OT4}{I}{\msc@ogonek {.2}{.07} I}
-\DeclareTextCompositeCommand{\polhk}{OT4}{u}{\msc@ogonek {.6}{.07} u}
-\DeclareTextCompositeCommand{\polhk}{OT4}{U}{\msc@ogonek   0 {.05} U}
-\DeclareTextCompositeCommand{\polhk}{OT4}{o}{\msc@ogonek   0 {.07} o}
-\DeclareTextCompositeCommand{\polhk}{OT4}{O}{\msc@ogonek   0 {.05} O}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\msc@ogonek}
-%    \begin{macrocode}
-\def\msc@ogonek#1#2#3{%
-    \begingroup
-        \setboxz@h{#3\save@sf}%
-        \dimen@\wd\z@
-        \ooalign{%
-            \unhbox\z@\crcr
-            \hidewidth
-                \setboxz@h{\kern#1\dimen@\supsize$\lhook$}%
-                \dimen@\ht\z@
-                \advance\dimen@-#2ex\relax
-                \lower\dimen@\box\z@
-            \hidewidth
-        }%
-        \restore@sf
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\msc@ogonek@a}
-%    \begin{macrocode}
-\def\msc@ogonek@a#1#2{%
-    \begingroup
-        \ooalign{%
-            #2\save@sf\crcr
-            \hidewidth
-                \raise0.02ex\hbox{\kern#1ex\char'014}%
-            \hidewidth
-        }%
-        \restore@sf
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\soft}
-%    Polish `soft' letters T, D, L:
-%
-%    \begin{chartable}
-%    |\soft{T}| & \soft{T} & \uchar{0164} &
-%    |\soft{t}| & \soft{t} & \uchar{0165} \\
-%    |\soft{D}| & \soft{D} & \uchar{010E} &
-%    |\soft{d}| & \soft{d} & \uchar{010f} \\
-%    |\soft{L}| & \soft{L} & \uchar{013B} &
-%    |\soft{l}| & \soft{l} & \uchar{013C}
-%    \end{chartable}
-%    \begin{macrocode}
-\DeclareTextCommand{\soft}{OT4}{\v}
-\DeclareTextCommand{\soft}{T1}{\v}
-\DeclareTextCommand{\soft}{OT1}{\v}
-
-\DeclareTextCompositeCommand{\soft}{OT1}{t}{\msc@soft{t}\@ne{.5ex}}
-\DeclareTextCompositeCommand{\soft}{OT1}{d}{\msc@soft{d}{.925}{.95ex}}
-\DeclareTextCompositeCommand{\soft}{OT1}{l}{\msc@soft{l}{.95}{.4ex}}
-\DeclareTextCompositeCommand{\soft}{OT1}{L}{\msc@soft{L}{.975}{.8ex}}
-
-\DeclareTextCompositeCommand{\soft}{OT4}{t}{\msc@soft{t}\@ne{.5ex}}
-\DeclareTextCompositeCommand{\soft}{OT4}{d}{\msc@soft{d}{.925}{.95ex}}
-\DeclareTextCompositeCommand{\soft}{OT4}{l}{\msc@soft{l}{.95}{.4ex}}
-\DeclareTextCompositeCommand{\soft}{OT4}{L}{\msc@soft{L}{.975}{.8ex}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\msc@soft}
-%    \begin{macrocode}
-\def\msc@soft#1#2#3{%
-    \leavevmode
-    \begingroup
-        \setboxz@h{#1}%
-        \raise#2\ht\z@\rlap{\kern#3\supsize,}\unhbox\z@
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \section*{\raggedright Appendix: Plumbing the depths of
-%    underhanging diacritics: Notes on the magic constant 0.2\,ex and
-%    an exegesis of certain obscure corners of the \cn{@underaccent}
-%    macro}
-%
-%    \tex/ assumes that a combining accent can be superimposed
-%    directly on top of any character whose height is 1\,ex.  If the
-%    actual height of the base character differs from 1\,ex, the
-%    accent is shifted up or down to maintain the same vertical
-%    separation.  Put another way, subtracting 1\,ex from the height
-%    of a combining accent tells us how much a character's height is
-%    increased when that accent is added.  Call this
-%    distance~$\delta$.
-%
-%    This distance can be analyzed into two pieces: $\delta = \sigma +
-%    \eta$, where $\sigma$ is the separation between the top of
-%    the base character and the \emph{bottom} of the accent, and
-%    $\eta$ is the height of the bounding box of the accent.
-%
-%    If we now consider moving the accent to the bottom of a
-%    character, we have a new relation $\delta' = \sigma' + \eta$,
-%    where $\sigma'$ is the distance between the bottom of the base
-%    and the \emph{top} of the accent, and $\delta'$ is the amount by
-%    which the depth of the base character is increased.
-%
-%    If the placement of the underhanging version of an accent were
-%    strictly symmetrical with the overhanging version, then we would
-%    have $\sigma' = \sigma$ and thus $\delta' = \delta$.  However, the
-%    placement is not symmetric since for aesthetic reasons we have
-%    chosen to set $\sigma' = .2\,\mathrm{ex}$, which seems in general
-%    to be a little less than the corresponding~$\sigma$.
-%    Unfortunately, this means we can't calculate~$\delta'$ accurately
-%    since there is no way to deduce $\eta$ (or, equivalently,
-%    $\sigma$) from the font metric information available to us
-%    within~\TeX.\footnote{By exploiting symmetries present in some
-%    fonts, one can calculate $\eta$ for some of the accents in those
-%    fonts, but this doesn't help us much since both $\sigma$
-%    and~$\eta$ vary between accents.}
-%
-%    This leaves us in a bit of a bind, since it means there is no way
-%    to calculate the depth accurately.  In despair, I've decided just
-%    to pretend that $\delta' = \delta$ for now.
-%
-%    \subsection*{Finis}
-%
-%    The usual \cs{endinput} to ensure that random garbage at the end of
-%    the file doesn't get copied by \fn{docstrip}.
-%    \begin{macrocode}
-\endinput
-%    \end{macrocode}
-%
-% \CheckSum{365}
-% \Finale
diff --git a/Master/texmf-dist/source/latex/amslatex/pcatcode.dtx b/Master/texmf-dist/source/latex/amslatex/pcatcode.dtx
deleted file mode 100644
index 192cb201871..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/pcatcode.dtx
+++ /dev/null
@@ -1,359 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-doc-source-file{
-%%%   filename  = "pcatcode.dtx",
-%%%   version   = "1.04",
-%%%   date      = "2002/04/16",
-%%%   time      = "09:20:52 EDT",
-%%%   author    = "Michael J Downes",
-%%%   copyright = "Copyright 2001 American Mathematical Society",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support@ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "The pcatcode package changes LaTeX package loading
-%%%                internals so that all subsequently loaded packages
-%%%                can rely on having normal catcodes in effect.",
-%%%   license   = "Artistic",
-%%%   checksum  = "25118 359 1469 13319",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-% \iffalse
-%<*driver>
-\documentclass{amsdtx}
-%\usepackage{pcatcode}\relax
-\begin{document}
-\title{The \pkg{pcatcode} package}
-\author{Michael~J. Downes\\American Mathematical Society}
-\date{Version \fileversion, \filedate}
-\hDocInput{pcatcode.dtx}
-\end{document}
-%</driver>
-% \fi
-%
-% \maketitle
-% \section{Introduction}
-%
-%    The \pkg{pcatcode} package provides mechanisms for robustly
-%    changing the catcode environment for the duration of a package and
-%    restoring it afterwards to whatever it was before the package was
-%    loaded.
-%
-%    Motivation: The \pkg{amsmath} package (for example), makes a number
-%    of assignments using characters such as double-quote and
-%    left-quote, because these are hard-wired into the \tex/ syntax for
-%    numbers and other things. If a package that makes double-quote an
-%    active character is loaded before \pkg{amsmath}, all the
-%    statements that use double-quote turn into error messages.
-%
-%    But now! Groan and grumble no more, ye package writers, for putting
-%    a magical invocation of the pcatcode package at the beginning of
-%    your package file, as shown here, will ensure that your
-%    package contents will be processed with completely normal catcodes.
-%\begin{verbatim}
-%\NeedsTeXFormat{LaTeX2e}[1995/12/01]
-%\@ifundefined{PushCatcodes}{%
-%  \RequirePackage{pcatcode}\relax\PushCatcodes\NormalCatcodes
-%}{}
-%\ProvidesPackage{foo}[2002/04/16 v1.04]
-%\end{verbatim}
-%
-%    It must be followed by a matching \cs{PopCatcodes} command,
-%    typically used in conjunction with \cs{endinput}.
-%
-%    WARNING: This functionality would work best if it were built into
-%    the \LaTeX{}2e kernel, but it cannot be usefully added to the
-%    kernel now without adversely affecting document compatibility
-%    across different systems. This package therefore modifies one or
-%    two of the low-level package-loading functions defined by the
-%    kernel. This means that there may be trouble if any other package,
-%    or some future version of \LaTeX{}, changes the definitions of
-%    those functions.
-%
-%    NOTE: Packages that do not call \cs{PushCatcodes}
-%    \cs{NormalCatcodes} will remain transparent to the external catcode
-%    environment in the usual way (i.e., for all characters except the
-%    \verb'@' character).
-%
-% \StopEventually{}
-%
-% \section{Implementation}
-% \subsection{Preliminary Remarks}
-%
-%    At the document level, we assume that the following characters
-%    always have their standard catcode:
-% \begin{center}
-% \begin{tabular}{lp{.75\columnwidth}}
-% \verb'\{}' & for commands and arguments\\
-% \verb'%' & for comments\\
-% \verb'#' & for use with \cn{newcommand}\\
-% \verb'*' & cannot be changed without breaking star-form commands\\
-% \verb'[]' & cannot be changed without breaking optional arguments\\
-% \verb'~' & already active, no reason to change catcode
-% \end{tabular}
-% \end{center}
-%
-%    One might think that we could assume hyphen, period (and comma, for
-%    European decimal notation) are always catcode 12. Experience has
-%    shown, however, that for just about every character there is some
-%    plausible application that would be facilitated by making that
-%    character active and giving it a complex definition. Surely hyphen
-%    and period must stay catcode 12 in order to work in statements like
-%    the following?
-%\begin{verbatim}
-%\addtocounter{section}{-1}
-%\addtolength{\columnwidth}{-1.5cm}
-%\end{verbatim}
-%    Yet hyphen and period are important constituents of ordinary text
-%    and therefore special applications arise. For example,
-%    what if you would like
-%    mdashes to be surrounded by extra space but your authors prefer to
-%    continue writing \verb'---' in the accustomed manner?
-%
-%    Theoretically speaking, the \pkg{pcatcode} package itself has to
-%    guard against the kind of catcode problems that it is intended to
-%    circumvent. If you would like a nice little \tex/nician's
-%    exercise, try your hand, before looking at the code below, at the
-%    task that I set for myself: Find the minimal set of catcode
-%    assumptions that one has to make before attempting to establish
-%    normalcy, where normalcy is defined as the state at the end of
-%    \fn{latex.ltx}, just before the last \cs{makeatother}. This is the
-%    state that may normally be expected at the beginning of a
-%    documentclass file, if the \LaTeX{} format file does not have any
-%    extensions (e.g., babel) compiled in.
-%
-%    Ready to look, now?
-%
-%    In order for the following code to work it is only necessary that
-%    backslash, letters, and digits have their normal catcodes: 0, 11,
-%    12 respectively. One could argue that if \fn{pcatcode.sty} is
-%    invoked through a standard \cs{RequirePackage} call, it can be
-%    assumed that curly braces also have their normal catcodes. But I
-%    suppose it is not utterly inconceivable that in some special
-%    circumstances one might want to load the package with the
-%    \cs{@@input} primitive, sans braces. And in any case the extra
-%    overhead to handle braces as well is trivial so for esthetic
-%    reasons I'm gonna put it in.
-%
-%    If you look really hard you'll find one or two other assumptions,
-%    such as ``endlinechar is not a letter''. Wait, come to think of it,
-%    I can fix that \ldots
-%
-%    The purpose of the group is chiefly to localize the temporarily
-%    changed definitions of \cs{e}, \cs{n}, etc.
-%    \begin{macrocode}
-\begingroup\let\e\endlinechar\iffalse\
-\fi\chardef\E\e\e13\chardef\n\catcode\e\catcode\e5\relax\relax
-\chardef\s\catcode32\chardef\t10\catcode32\t
-\chardef\c\catcode37 \catcode37 14 % percent
-\chardef\=\catcode61 \catcode61 12 % equal sign
-\chardef\l=\catcode123 \catcode123=1 % left brace
-\chardef\r=\catcode125 \catcode125=2 % right brace
-\chardef\[=\catcode91 \catcode91=12 % left bracket
-\chardef\]=\catcode93 \catcode93=12 % right bracket
-\chardef\^=\catcode94 \catcode94=7 % hat
-\chardef\.=\catcode46 \catcode46=12 % period
-\chardef\/=\catcode47 \catcode47=12 % slash
-\edef\c{%
-  \endgroup
-  \def\noexpand\pcat@restore{%
-    \catcode\number\e=\number\n \catcode32=\number\s
-    \catcode123=\number\l \catcode125=\number\r
-    \catcode37=\number\c \catcode61=\number\=%
-    \catcode91=\number\[\catcode93=\number\]\catcode94=\number\^%
-    \catcode46=\number\.\catcode47=\number\/%
-    \endlinechar=\number\E \relax
-  }%
-}
-\c
-\endlinechar13\catcode13\string=5\relax\relax
-\catcode32\string=10 \catcode37 14\relax\relax
-\catcode61 12\catcode123=1\catcode125=2\catcode91=12\catcode93=12\relax
-\catcode46=12\catcode47=12\catcode94=7\relax
-%    \end{macrocode}
-%
-%    This code was postponed until now to avoid all but the most
-%    essential assumptions.
-%    \begin{macrocode}
-\NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{pcatcode}[2002/04/16 v1.04]
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\NormalCatcodes{%
-  \endlinechar=13%
-  \catcode33=12\catcode34=12\catcode35=6\catcode36=3\catcode37=14%
-  \catcode38=4\catcode39=12\catcode40=12\catcode41=12\catcode42=12%
-  \catcode43=12\catcode44=12\catcode45=12\catcode46=12\catcode47=12%
-  \catcode58=12\catcode59=12\catcode60=12\catcode61=12\catcode62=12%
-  \catcode63=12\catcode91=12\catcode92=0\catcode93=12\catcode94=7%
-  \catcode95=8\catcode96=12\catcode123=1\catcode124=12\catcode125=2%
-  \catcode126=13\catcode32=10\catcode13=5\catcode9=10\catcode10=12%
-  \relax
-}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\CatcodeStack{}
-%    \end{macrocode}
-%
-%    Notably absent from the following list: the \verb'@' character and
-%    whitespace characters. The former is already handled in the
-%    \LaTeX{} kernel, and I hesitate to interfere with its current
-%    catcode transitions.
-%    \begin{macrocode}
-\begingroup \escapechar=\m@ne \let\s\string
-\xdef\pcat@otherchars{%
-  \s\!\s\"\s\#\s\$\s\%\s\&\s\'\s\(\s\)\s\*\s +\s\,\s\-\s\.\s\/\s\:%
-  \s\;\s\<\s\=\s\>\s\?\s\[\s\\\s\]\s\^\s\_\s\`\s\{\s\|\s\}\s\~%
-}
-\endgroup
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\gdef\PushCatcodes{%
-  \xdef\CatcodeStack{%
-    \expandafter\PushCat@a\pcat@otherchars\ \
-    \^^I\^^J{T \@gobbletwo}\@empty
-    \relax
-    {\CatcodeStack}}%
-}
-\def\PushCat@a#1{\catcode\number`#1=\number\catcode`#1 \PushCat@a}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\PushCatcodes \NormalCatcodes
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\def\PopCatcodes{\expandafter\PopCat@a\CatcodeStack}
-\def\PopCat@a#1#{#1\xdef\CatcodeStack}
-%    \end{macrocode}
-%
-% \subsection{Checking current settings}
-%
-%    This can be used to store a copy of the current settings. Or print
-%    it with \cs{typeout}.
-%    \begin{macrocode}
-\def\CCSdo#1{ (\string#1\@iden{:\number\catcode`#1)\CCSdo}}
-\def\CurrentCatcodesSubset{%
-  \romannumeral 0\CCSdo\^^I\^^J\^^L\^^M\ \!\"\#\$\%\&\'\(\)\*+\,\-\.\/\:\;\<\=\>\?\@\[\\\]\^\_\`\{\|\}{\~\@gobbletwo}:\number\catcode`\~)%
-}
-%    \end{macrocode}
-%
-% \subsection{Futurelet support}
-%
-%    For code that does futureletting to see if a punctuation character
-%    follows, it is distressing to handle the case when some characters
-%    might be made active (e.g., by the babel package).
-%
-%    The \cs{FutureLetSetup} function attempts to minimize the
-%    difficulties by defining canonical control sequences to represent
-%    all the visible ASCII characters (i.e., ranging from space to
-%    \qc{\~}, 32--126, plus TAB) whose catcode could be changed without
-%    transgressing the limits of standard \LaTeX{} syntax.
-%    \begin{macrocode}
-\begingroup\pcat@restore
-\begingroup
-\catcode`\3="3 \catcode`\4="4 \catcode`\7="7 \catcode`\8="8
-\catcode`\A="A \catcode`\B="B \catcode`\C="C \catcode`\D="D
-\gdef\fls@let#1#2{%
-  \ifx\@@undefined#1\else\errmessage{\string#1 already defined}\fi
-  \begingroup
-  \lccode`\3=`#2\lccode`\7=`#2\lccode`\8=`#2%
-  \lccode`\B=`#2\lccode`\C=`#2\lccode`\D=`#2\relax
-  \ifnum\catcode`#2=\active
-    \def\do##1{\noexpand\do\noexpand##1\noexpand}%
-    \lowercase{%
-      \xdef\fls@active@characters{%
-        \fls@active@characters
-        \do#1D}%
-    }%
-  \fi
-  \aftergroup\global \aftergroup\let \aftergroup#1\aftergroup=%
-  \lowercase{\aftergroup} %
-  \lowercase{\expandafter\endgroup
-    \ifcase\catcode`#2 %
-      0\or \bgroup\or \egroup\or 3\or 4\or 5\or 6\or 7\or 8\or 9\or
-      \@sptoken\or B\or C\else D\fi
-  }%
-}
-\endgroup
-%    \end{macrocode}
-%    \cs{dl@@dblquote} means ``document-level double quote'': a
-%    character token number 34 that has the catcode which is in effect
-%    at \verb'\begin{document}' for double quotes.
-%    \begin{macrocode}
-\gdef\FutureLetSetup{%
-  \gdef\fls@active@characters{}%
-%    \end{macrocode}
-%    This will normally be the same as \cs{@sptoken}.
-%    \begin{macrocode}
-  \fls@let\dl@@space\ %
-  \fls@let\dl@@exclam\!%
-  \fls@let\dl@@dblquote\"%
-  \fls@let\dl@@hash\#%
-  \fls@let\dl@@dollar\$%
-%    \end{macrocode}
-%    At document level, this cannot occur as a separate token.
-%    \begin{macrocode}
-%  \fls@let\dl@@percent\%%
-  \fls@let\dl@@ampersand\&%
-  \fls@let\dl@@rquote\'%
-  \fls@let\dl@@lparen\(%
-  \fls@let\dl@@rparen\)%
-  \fls@let\dl@@star\*%
-  \fls@let\dl@@plus\+%
-  \fls@let\dl@@comma\,%
-  \fls@let\dl@@hyphen\-%
-  \fls@let\dl@@period\.%
-  \fls@let\dl@@slash\/%
-  \fls@let\dl@@colon\:%
-  \fls@let\dl@@semicolon\;%
-  \fls@let\dl@@less\<%
-  \fls@let\dl@@equal\=%
-  \fls@let\dl@@greater\>%
-  \fls@let\dl@@question\?%
-  \fls@let\dl@@lbracket\[%
-%    \end{macrocode}
-%    At document level, this cannot occur as a separate token.
-%    \begin{macrocode}
-%  \fls@let\dl@@backslash\\%
-  \fls@let\dl@@rbracket\]%
-  \fls@let\dl@@hat\^%
-  \fls@let\dl@@underscore\_%
-  \fls@let\dl@@lquote\`%
-%    \end{macrocode}
-%    Here one would normally use \cs{bgroup}.
-%    \begin{macrocode}
-  \fls@let\dl@@lbrace\{%
-  \fls@let\dl@@vert\|%
-%    \end{macrocode}
-%    Here one would normally use \cs{egroup}.
-%    \begin{macrocode}
-  \fls@let\dl@@rbrace\}%
-  \fls@let\dl@@tilde\~%
-}
-\AtBeginDocument{\FutureLetSetup}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\gdef\FutureLetReset{%
-  \def\do##1##2{\let##1= ##2}%
-  \fls@active@characters
-  \let\do\relax
-}
-\endgroup
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\endinput \PopCatcodes\pcat@restore
-%    \end{macrocode}
-%
-% \CheckSum{530}
-% \Finale
diff --git a/Master/texmf-dist/source/latex/amslatex/rkeyval.dtx b/Master/texmf-dist/source/latex/amslatex/rkeyval.dtx
deleted file mode 100644
index 88d4642df27..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/rkeyval.dtx
+++ /dev/null
@@ -1,1116 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-doc-source-file{
-%%%   filename  = "rkeyval.dtx",
-%%%   version   = "2.00",
-%%%   date      = "2004/06/28",
-%%%   time      = "15:19:29 EDT",
-%%%   author    = "Michael J Downes and David M. Jones",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support@ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "Key-value scanning functions with more restrictive
-%%%                syntax than the standard keyval package. This permits
-%%%                some improvements in the error-checking.",
-%%%   checksum  = "44721 1116 3178 30537",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-% \iffalse
-%<*driver>
-\documentclass[draft,oneside]{amsdtx}
-\pagestyle{myheadings}
-
-\makeatletter
-\DeclareRobustCommand{\fld}{\@category@index{field}}
-\makeatother
-
-\DoNotIndex{\@emptytoks,\@temptokenb}
-
-\CodelineIndex
-
-\begin{document}
-\title{The \pkg{rkeyval} package:\protect\linebreak[1]
-  Syntactically restricted key-value scanning}
-\author{Michael Downes and David M. Jones\\American Mathematical Society}
-\date{Version \fileversion, \filedate}
-\hDocInput{rkeyval.dtx}
-\PrintIndex
-\end{document}
-%</driver>
-% \fi
-%
-% \MakeShortVerb{\|}
-%
-% \maketitle
-% \markboth{The \protect\pkg{rkeyval} package}
-%          {Version \protect\fileversion, \protect\filedate}
-%
-%   \tableofcontents
-%
-% \section{Introduction}
-%
-%    The \pkg{rkeyval} package provides functions for scanning key-value
-%    notation similar to the kind of scanning supported by the standard
-%    \pkg{keyval} package. However, the syntax is more restrictive in
-%    order to make some improved error-checking possible. In particular,
-%    if a comma is omitted between two instances of |key={value}|
-%    form, the \cn{RestrictedSetKeys} command will spot the missing
-%    comma and issue a suitable error message (and it will be given at
-%    the point where the missing comma is detected, before reading any
-%    further in the \tex/ file). The standard \cn{setkeys} command, by
-%    contrast, will append the second key name to the value of the first
-%    key and discard the second value, without any notification to the
-%    user that anything has gone wrong. But that is partly because the
-%    standard \cn{setkeys} command allows implied values and does not
-%    require braces around explicit values (except when necessary to
-%    hide material that has a syntactic resemblance to a key-value
-%    pair). With \cn{RestrictedSetKeys} the value must always be present
-%    and it must be enclosed in braces.
-%
-%^^A Maybe commas should be optional.
-%
-%    Further restrictions of the \cn{RestrictedSetKeys} command and its
-%    companion commands reduce memory consumption in certain ways.
-%    Defining a key creates only one control sequence, a container for
-%    holding the value. Processing of key values is normally limited to
-%    storing a value given by the user; any additional processing must
-%    be supplied separately by the programmer.
-%
-%    Generally speaking, the error-checking done by
-%    \cn{RestrictedSetKeys} is better for applications where all the
-%    keys are expected to have textual values, while \cn{setkeys} is
-%    better when one wants to silently recover as far as possible from
-%    syntactic errors, instead of notifying the user of the errors; or
-%    when keys have nontrivial default values (i.e., not empty) or other
-%    kinds of special processing.
-%
-%    \begin{verbatim}
-%    \RestrictedSetKeys{setup-code}{group}{code}{key={val}, ...}
-%\end{verbatim}
-%    Normally \cn{RestrictedSetKeys} simply carries out the following
-%    assignment for each key-value pair:
-%    \begin{verbatim}
-%    \def\group'key{val}
-%\end{verbatim}
-%    The first argument is normally empty, but the exact nature of the
-%    warnings given and other aspects of the processing can be affected
-%    by putting extra setup code there. The \pkg{amsrefs} package uses
-%    this to implement a copying operation where field name and value
-%    are written out immediately to another file instead of being stored
-%    in the usual way.
-%
-%    Some examples for defining the key names associated with a given
-%    group. This defines ``title'' as a recognized key for the \fn{bib}
-%    group:
-%    \begin{verbatim}
-%    \DefineSimpleKey{bib}{title}
-%\end{verbatim}
-%    If a key is defined with \cs{DefineSimpleKey}, the result of using
-%    the same key more than once in a single entry will be an error
-%    message.
-%
-%    This defines ``title'' to be a repeatable key:
-%    \begin{verbatim}
-%    \DefineSupersedingKey{bib}{title}
-%\end{verbatim}
-%    If it occurs more than once, the last value supersedes the earlier
-%    ones, instead of getting an error. This variation is not needed for
-%    simple usage, but in more complicated situations where key values
-%    are combined from multiple sources, it may be useful.
-%
-%    This defines ``author'' to be a repeatable key, with each value
-%    being appended to a list of values:
-%    \begin{verbatim}
-%    \DefineAdditiveKey{bib}{author}{\name}
-%\end{verbatim}
-%    The third argument specifies a wrapper function that should be
-%    applied to each item in the list. I.e., suppose that two author
-%    names are given:
-%    \begin{verbatim}
-%    author={Smith, J. Q.},
-%    author={Taylor, X. Y.},
-%\end{verbatim}
-%    Then they will be stored in the form
-%    \begin{verbatim}
-%    \name{Smith, J. Q.}\name{Taylor, X. Y.}
-%\end{verbatim}
-%
-%    This defines ``transition'' to be a dummy key with a value that is
-%    superficially nonempty but effectly empty:
-%    \begin{verbatim}
-%    \DefineDummyKey{bib}{transition}
-%\end{verbatim}
-%    Defining a dummy key like this can be useful in dealing with
-%    certain boundary situations that sometimes arise.
-%
-% \StopEventually{}
-%
-% \section{Implementation}
-%    Standard declaration of package name and date.
-%    \begin{macrocode}
-\NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{rkeyval}[2004/05/05 v1.08]
-%    \end{macrocode}
-%
-%    \begin{macro}{\@xp}
-%    \begin{macro}{\@nx}
-%    \begin{macrocode}
-\let\@xp\expandafter
-\let\@nx\noexpand
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%
-%    \begin{macro}{\@gobblethree}
-%    \begin{macro}{\@nilgobble}
-%    Not in the \latex/ kernel yet.
-%    \begin{macrocode}
-\long\def\@gobblethree#1#2#3{}
-\long\def\@nilgobble#1\@nil{}
-%    \end{macrocode}
-%    \end{macro}
-%    \end{macro}
-%
-%    \begin{macro}{\@emptytoks}
-%    Using \cs{@ifundefined} here avoids problems with really old
-%    versions of \latex/ that choke on \cs{newtoks} if it is written
-%    directly in the false branch of a conditional.
-%    \begin{macrocode}
-\@ifundefined{@emptytoks}{\csname newtoks\endcsname\@emptytoks}{}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@temptokenb}
-%    \begin{macrocode}
-\@ifundefined{@temptokenb}{\csname newtoks\endcsname\@temptokenb}{}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@append}
-%    \begin{macrocode}
-\def\@append#1#2#3{\@xp\def\@xp#2\@xp{#2#1{#3}}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\star@}
-%    Test for a trailing option marked by a star. Usage:
-%    \begin{verbatim}
-%    \newcommand{\blub}[1]{\star@{\blubaux{#1}}{default}}
-%\end{verbatim}
-%    Arg 1 of \cs{star@} is the code to
-%    be run, arg 2 is the default value of the option (could be empty).
-%    If arg 1 is \ncn{moo}, this test discards a star and expands to
-%    \ncn{moo} if a star is found, or expands to |\moo{#2}| if
-%    not. As the example shows, arg 1 need not be a single token.
-%    \begin{macrocode}
-\def\star@#1#2{%
-    \def\star@a##1{#1}%
-    \def\star@b{#1{#2}}%
-    \futurelet\@let@token\star@test
-}
-
-\def\star@test{\ifx*\@let@token \let\star@b\star@a\fi \star@b}
-%    \end{macrocode}
-%
-%    Please note: If there is a space before the star, then the star is
-%    not treated as an option char.
-%
-%    Why use a star?  Since it's already part of standard \latex/
-%    command syntax, it's unlikely to suffer from catcode changes.
-%
-%    Why not just put the star at the beginning in the usual way?  It
-%    seemed to me that the lack of a trailing option
-%    feature was a deficiency in current \latex/ and could be given an
-%    experimental implementation in a package like this without any
-%    adverse effect on existing documents.
-%    \end{macro}
-%
-%    Ensure non-weird catcode for relevant characters.
-%    \begin{macrocode}
-\@ifundefined{NormalCatcodes}{\RequirePackage{pcatcode}\relax}{}
-\PushCatcodes\NormalCatcodes
-%    \end{macrocode}
-%
-%    \begin{macro}{\extract@group}
-%    Extracts ``group'' from |\group'field|.
-%    \begin{macrocode}
-\def\extract@group#1{%
-    \@xp\extract@group@a\string#1\@nil
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\extract@group@a}
-%    \begin{macrocode}
-\def\extract@group@a#1#2'{#2\@nilgobble}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \section{Data structures}
-%
-%    The result of scanning the key/value pairs is an assignment statement
-%    for \cs{rsk@toks}. For example, consider the entry
-%    \begin{verbatim}
-%    \bib{LelekZ1962}{article}{
-%        author={Lelek, A.},
-%        author={Zaremba, D.},
-%        title={Dimensions of irreducible ...},
-%        journal={Fund. Math.},
-%        date={1962/63},
-%    }
-%\end{verbatim}
-%    The scanned result is to assign
-%    \begin{verbatim}
-%    \global\rsk@toks{%
-%        \set:bib'author{Lelek, A.}{}%
-%        \set:bib'author{Zaremba, D.}{}%
-%        \set:bib'title{Dimensions of irreducible ...}{}%
-%        \set:bib'journal{Fund. Math.}{}%
-%        \set:bib'date{1962/63}{}%
-%    }
-%\end{verbatim}
-%    The extra empty arguments on each line are for auxiliary
-%    properties (see below).
-%    What happens thereafter with \cs{rsk@toks} depends on the code in
-%    the last arg of \cs{RestrictedSetKeys}.
-%
-%    \section{Auxiliary properties}
-%
-%    Unfortunately, the previous section isn't the entire story. In
-%    addition to the values of each field, we need to store a set of
-%    auxiliary properties associated with those values.  Note that
-%    properties are explicitly associated with \emph{values}, not with
-%    keys, because each value of an additive key could have different
-%    properties.
-%
-%    All such extra data will be stored in a special field named
-%    ``aux'', with embedded tags to indicate which field each piece of
-%    the \fld{aux} field is associated with. The extra bits can be
-%    extracted on demand using standard techniques, and the primary
-%    value of each field is not burdened with any attachments, so that
-%    comparisons or scanning of the field contents can remain as
-%    simple as possible.
-%
-%    Thus in practice there is at least one bit of auxiliary information
-%    in every bib item, and our previous example would have the title
-%    language indicated:
-%    \begin{verbatim}
-%    \DSK@def\bib'title{Eine Bemerkung zur Darstellung von Polynomen
-%        \"{u}ber Verb\"{a}nden}%
-%    \@append\bib'title\bib'aux{\selectlanguage{german}}%
-%\end{verbatim}
-%
-%    \begin{macro}{\set@property}
-%    \begin{macrocode}
-\def\set@property#1{%
-    \begingroup
-        \edef\@tempa{\extract@group#1}%
-        \edef\@tempa{%
-            \@nx\@append\@nx#1\@xp\@nx\csname \@tempa,aux\endcsname
-        }%
-    \@xp\endgroup
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\get@property}
-%    \begin{macrocode}
-%    \get@property\destination\bib'title
-\def\get@property#1#2{%
-    \get@nth@property#1#2\m@ne
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\get@nth@property}
-%    \begin{macrocode}
-%    \get@nth@property\destination\bib'title N
-\def\get@nth@property#1#2#3{%
-    \begingroup
-        \edef\@tempa{\extract@group#2}%
-        \@tempcnta#3\relax
-        \@tempcntb\z@
-        \@xp\scan@properties\@xp#2\csname \@tempa,aux\endcsname
-        \edef\@tempa{\def\@nx#1{\@tempa}}%
-    \@xp\endgroup
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\scan@properties}
-%    \begin{macrocode}
-\def\scan@properties#1#2{%
-    \begingroup
-        \def\@tempa{#1}%
-        \let\@tempc\@empty
-        \@xp\find@property #2 \@nil\@nil
-        \edef\@tempa{\def\@nx\@tempa{\@tempc}}%
-    \@xp\endgroup
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\find@property}
-%    \begin{macrocode}
-\def\find@property#1#2{%
-    \ifx\@nil#1%
-    \else
-        \def\@tempb{#1}%
-        \ifx\@tempa\@tempb
-            \ifnum\@tempcnta<\z@
-                \def\@tempc{#2}%
-            \else
-                \advance\@tempcntb\@ne
-                \ifnum\@tempcntb=\@tempcnta
-                    \def\@tempc{#2}%
-                \fi
-            \fi
-        \fi
-        \@xp\find@property
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\reset@property}
-%    \begin{macrocode}
-\def\reset@property#1#2{%
-    \reset@nth@property#1\m@ne{#2}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\reset@nth@property}
-%    \begin{macrocode}
-%    \reset@nth@property\bib'title N VALUE
-\def\reset@nth@property#1#2#3{%
-    \begingroup
-        \edef\@tempa{\extract@group#1}%
-        \@tempcnta#2\relax
-        \@temptokena{#3}%
-        \toks@\@emptytoks
-        \@tempcntb\z@
-        \@xp\reset@scan\@xp#1\csname \@tempa,aux\endcsname
-        \edef\@tempa{%
-            \def\@xp\@nx\csname \@tempa,aux\endcsname{\the\toks@}%
-        }%
-    \@xp\endgroup
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\reset@scan}
-%    \begin{macrocode}
-\def\reset@scan#1#2{%
-    \begingroup
-        \def\@tempa{#1}%
-        \@xp\reset@scan@a #2 \@nil\@nil
-        \edef\@tempa{\toks@{\the\toks@}}%
-    \@xp\endgroup
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\find@property}
-%    \begin{macrocode}
-\def\reset@scan@a#1#2{%
-    \ifx\@nil#1%
-    \else
-        \def\@tempb{#1}%
-        \ifx\@tempa\@tempb
-            \ifnum\@tempcnta<\z@
-                \@temptokenb\@temptokena
-            \else
-                \advance\@tempcntb\@ne
-                \ifnum\@tempcntb=\@tempcnta
-                    \@temptokenb\@temptokena
-                \fi
-            \fi
-        \else
-            \@temptokenb{#2}%
-        \fi
-        \edef\@tempb{%
-            \toks@{\the\toks@ \@nx#1{\the\@temptokenb}}%
-        }%
-        \@tempb
-        \@xp\reset@scan@a
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \section{Some machinery for finite state automata}
-%
-%    Coincidentally I needed to write two finite state automaton parsers
-%    for two related packages, so after writing them separately I spent
-%    some time analyzing the code fragments they shared in common and
-%    abstracted them so that the cs names could be shared.
-%
-%    \begin{macro}{\fsa@l}
-%    FSA lookahead.
-%    \begin{macrocode}
-\def\fsa@l{\futurelet\@let@token\fsa@t}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\fsa@b}
-%    FSA bypass a token.  Don't delete the space at the end!
-%    \begin{macrocode}
-\def\fsa@b{\afterassignment\fsa@l \let\@let@token= }
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\fsa@c}
-%    FSA copy a token (not space, bgroup, egroup).
-%    \begin{macrocode}
-\def\fsa@c#1{\aftergroup#1\fsa@l}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\fsa@n}
-%    FSA next action. This is just a placeholder definition.
-%    \begin{macrocode}
-\let\fsa@n\@empty
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\fsa@t}
-%    FSA test. This is just a placeholder definition.
-%    \begin{macrocode}
-\let\fsa@t\@empty
-%    \end{macrocode}
-%    \end{macro}
-%
-% \section{Now some of the real work}
-%
-%    \begin{macro}{\rsk@toks}
-%    \begin{macrocode}
-\newtoks\rsk@toks
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rkvIfEmpty}
-%    Beginning here.
-%    \begin{macrocode}
-\def\rkvIfEmpty#1#2{%
-    \@xp\ifx\csname#1'#2\endcsname\@empty
-        \@xp\@firstoftwo
-    \else
-        \@xp\@secondoftwo
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rkvIfAdditive}
-%    \begin{macrocode}
-\def\rkvIfAdditive#1{%
-    \@xp\let\@xp\@let@token \csname \rkv@setter#1\endcsname
-    \afterassignment\@nilgobble
-    \@xp\let\@xp\@let@token \@let@token \@empty\@empty\@nil
-    \ifx\@let@token\DSK@append
-        \@xp\@firstoftwo
-    \else
-        \@xp\@secondoftwo
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rkv@setter}
-%    It irritates me that I can't embed the \ncn{csname} and
-%    \ncn{endcsname} in here.
-%    \begin{macrocode}
-\def\rkv@setter#1{set:\@xp\@gobble\string#1}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rkv@DSAK}
-%    Define a simple, superseding, or additive key.
-%    \begin{macrocode}
-\def\rkv@DSAK#1#2{%
-    \addto@group@reset#1{\let#1\@empty}%
-    \edef\@tempa{\def\csname \rkv@setter#1\endcsname}%
-    \@tempa{#2#1}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rkv@DDK}
-%    This function is used for a dummy key whose value (expansion)
-%    should be empty but that should appear non-empty to
-%    \cs{rkvIfEmpty}.
-%    \begin{macrocode}
-\def\rkv@DDK#1{%
-    \addto@group@reset#1{\def#1{\@empty}}%
-    \@xp\let\csname \rkv@setter#1\endcsname\@gobble
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\DSK@def}
-%    \begin{macrocode}
-\def\DSK@def#1{%
-    \ifx#1\@empty\else
-        \PackageWarningNoLine{rkeyval}%
-            {Key \string#1 should not be repeated}%
-    \fi
-    \DSK@redef#1%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\DSK@redef}
-%    We weed out empty field values for consistency with
-%    \cs{DSK@append}.
-%    \begin{macrocode}
-\def\DSK@redef#1#2{%
-    \@ifempty{#2}{\@gobble}{%
-        \def#1{#2}%
-        \set@property#1
-    }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\init@group@reset}
-%    \begin{macrocode}
-\def\init@group@reset#1{%
-    \begingroup
-        \edef\@tempb{\@xp\@nx\csname #1@reset\endcsname}%
-        \@xp\ifx\@tempb\relax
-            \@xp\xdef\@tempb{\let \csname #1,aux\endcsname\@nx\@empty}
-        \fi
-    \endgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\addto@group@reset}
-%    \begin{macrocode}
-\def\addto@group@reset#1{%
-    \begingroup
-        \edef\@tempa{\extract@group#1}%
-        \init@group@reset\@tempa
-        \edef\@tempa{%
-            \@nx\g@addto@macro\@xp\@nx\csname\@tempa @reset\endcsname
-        }%
-    \@xp\endgroup
-    \@tempa
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\DefineSimpleKey}
-%    \begin{macrocode}
-\newcommand{\DefineSimpleKey}[2]{%
-    \@xp\rkv@DSAK
-        \csname #1'#2\endcsname
-        {\DSK@def}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\DefineSupersedingKey}
-%    \begin{macrocode}
-\newcommand{\DefineSupersedingKey}[2]{%
-    \@xp\rkv@DSAK
-        \csname #1'#2\endcsname
-        {\DSK@redef}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\DefineAdditiveKey}
-%    \begin{macrocode}
-\newcommand{\DefineAdditiveKey}[3]{%
-    \@xp\rkv@DSAK
-        \csname #1'#2\endcsname
-        {\DSK@append#3}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\DSK@append}
-%    We weed out empty field values (e.g., |editor={}| or
-%    \verb*|editor={ }|) because otherwise an additive field could
-%    end up with a value like |\name{}| which appears non-empty to
-%    \cs{rkvIfEmpty} but produces no output on the page.
-%    \begin{macrocode}
-\def\DSK@append#1#2#3{%
-    \@ifempty{#3}{\@gobble}{%
-        \@append#1#2{#3}%
-        \set@property#2
-    }%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\DefineDummyKey}
-%    \begin{macrocode}
-\newcommand{\DefineDummyKey}[2]{%
-    \@xp\rkv@DDK \csname #1'#2\endcsname
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\RestrictedSetKeys}
-%    \begin{macrocode}
-\newcommand{\RestrictedSetKeys}[3]{%
-    \global\rsk@toks\@xp{\csname #2@reset\endcsname}%
-    \def\rsk@finish{#3}%
-    \gdef\rsk@set{\@xp\rsk@set@a\csname#2'}%
-    #1\relax
-    \begingroup
-        \rsk@changecase
-        \aftergroup\rsk@set
-%    \end{macrocode}
-%    Start by removing the opening brace.
-%    \begin{macrocode}
-        \let\fsa@t\rsk@z
-        \fsa@l
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    The aftergroup tokens end up looking like this:
-%    \begin{verbatim}
-%    \lowercase{\rsk@set FIELDNAME\endcsname}
-%     --> \@xp\rsk@set@a\csname bib'fieldname\endcsname
-%     --> \rsk@set@a\bib'abcdef
-%\end{verbatim}
-%
-%    \begin{macro}{\rsk@unknown@key}
-%    \begin{macrocode}
-\def\rsk@unknown@key#1{%
-    \PackageWarning{rkeyval}{Unknown key: \string#1}%
-    \@xp\def\csname\rkv@setter#1\endcsname {\DSK@redef#1}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-% \section{The state machine}
-%
-%\begin{verbatim}
-% State 0: Skip opening brace (\rsk@z).
-%   space -> 0
-%   {     -> 2
-%   other -> error "Missing open brace"
-%
-% State 1: Skip comma (\rsk@a).
-%   space -> 1
-%   \par  -> 1
-%   comma -> 2
-%   @     -> read optional arg; 1
-%   }     -> 6
-%   other -> error "Missing comma"; 2
-%
-% State 2: Find field name (\rsk@b).
-%   space  -> 2
-%   \par   -> 2
-%   comma  -> 2
-%   letter -> 3
-%   {      -> error "Missing key name"; 4
-%   }      -> 6
-%   other  -> error "Invalid key name character"; 2
-%
-% State 3: Scan field name (\rsk@c).
-%   letter -> 3
-%   comma  -> error "Invalid key name character"; 3
-%   equal  -> 4
-%   other punct  -> 3
-%   space  -> 4
-%   {      -> error "Missing equal sign"; 4
-%   }      -> error "Missing equal sign"; 4
-%   other  -> error "Invalid key name character"; 3
-%
-% State 4: Skip equals (\rsk@d).
-%   space  -> 4
-%   equal  -> 4
-%   {      -> 5
-%   other  -> error "Missing { for value of current key"; 5
-%
-% State 5: Read field value (\rsk@set@a).
-%   any -> 1
-%
-% State 6: Done (\rsk@end).
-%\end{verbatim}
-%
-%    \begin{macro}{\rsk@z}
-%    State 0: Skip opening brace.
-%    \begin{macrocode}
-\def\rsk@z{%
-    \ifx\bgroup\@let@token
-        \let\fsa@t\rsk@b
-        \let\fsa@n\fsa@b
-    \else
-        \ifx\@sptoken\@let@token
-            \let\fsa@n\fsa@b
-        \else
-            \rsk@errf
-        \fi
-    \fi
-    \fsa@n
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@a}
-%    State 1: Skip comma.
-%    \begin{macrocode}
-\def\rsk@a{%
-    \ifx\@let@token\@sptoken
-        \let\fsa@n\fsa@b
-    \else
-        \ifx\@let@token\par
-            \let\fsa@n\fsa@b
-        \else
-            \ifx,\@let@token
-                \endgroup
-                \let\fsa@t\rsk@b
-                \let\fsa@n\fsa@b
-            \else
-                \ifx\egroup\@let@token
-                    \endgroup
-                    \let\fsa@n\rsk@end
-                \else
-                    \endgroup
-                    \let\fsa@n\rsk@erraa
-                \fi
-            \fi
-        \fi
-    \fi
-    \fsa@n
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@b}
-%    State 2: Find field name.
-%
-%    Allow \cs{par} here to permit a blank line after
-%    the end of one key-val pair and the start of the next (perhaps to
-%    break up a long list into sections).
-%    \begin{macrocode}
-\def\rsk@b{%
-    \ifcat\@nx\@let@token A%
-        \let\fsa@t\rsk@c
-        \let\fsa@n\fsa@c
-    \else
-        \ifx\@sptoken\@let@token
-            \let\fsa@n\fsa@b
-        \else
-            \rsk@bb
-        \fi
-    \fi
-    \fsa@n
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@bb}
-%    \begin{macrocode}
-\def\rsk@bb{%
-    \ifx,\@let@token
-        \let\fsa@n\fsa@b
-    \else
-        \ifx\bgroup\@let@token
-            \let\fsa@n\rsk@errb
-        \else
-            \ifx\egroup\@let@token
-                \let\fsa@n\rsk@end
-            \else
-                \ifx\par\@let@token
-                    \let\fsa@n\fsa@b
-                \else
-                    \let\fsa@n\rsk@errc
-                \fi
-            \fi
-        \fi
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@c}
-%    State 3: Scan field name.
-%    \begin{macrocode}
-\def\rsk@c{%
-    \ifcat\@nx\@let@token A%
-        \let\fsa@n\fsa@c
-    \else
-        \ifx\@sptoken\@let@token
-            \let\fsa@t\rsk@d
-            \let\fsa@n\fsa@b
-        \else
-            \ifx=\@let@token
-                \let\saw@equal T%
-                \let\fsa@t\rsk@d
-                \let\fsa@n\fsa@b
-            \else
-                \rsk@cb
-            \fi
-        \fi
-    \fi
-    \fsa@n
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@cb}
-%    \begin{macrocode}
-\def\rsk@cb{%
-    \ifx,\@let@token
-        \let\fsa@n\rsk@errc
-    \else
-        \ifcat\@nx\@let@token .%
-            \let\fsa@n\fsa@c
-        \else
-            \ifx\bgroup\@let@token
-                \let\fsa@n\rsk@noequal
-            \else
-                \ifx\egroup\@let@token
-                    \let\fsa@n\rsk@noequal
-                \else
-                    \let\fsa@n\rsk@errc
-                \fi
-            \fi
-        \fi
-    \fi
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\saw@equal}
-%    \begin{macrocode}
-\let\saw@equal=F
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@d}
-%    State 4: Skip equals.
-%
-%    If no equal sign ever came
-%    along, then give a warning about it and set \cs{saw@equal} to true
-%    so that when \cs{rsk@noequal} cycles through again it will take the
-%    other branch.
-%    \begin{macrocode}
-\def\rsk@d{%
-    \ifx\bgroup\@let@token
-        \ifx\saw@equal T%
-            \aftergroup\endcsname
-            \rsk@endcase
-            \let\fsa@n\endgroup
-        \else
-            \let\saw@equal T%
-            \let\fsa@n\rsk@noequal
-        \fi
-    \else
-        \ifx\@sptoken\@let@token
-            \let\fsa@n\fsa@b
-        \else
-            \ifx=\@let@token
-                \let\saw@equal T%
-                \let\fsa@n\fsa@b
-            \else
-                \let\fsa@n\rsk@erre
-            \fi
-        \fi
-    \fi
-    \fsa@n
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@casesensitive}
-%    \begin{macrocode}
-\def\rsk@casesensitive{%
-    \let\rsk@changecase\@empty
-    \let\rsk@endcase\@empty
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@startlc}
-%    \begin{macrocode}
-\def\rsk@startlc{\aftergroup\lowercase\aftergroup{\iffalse}\fi}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@endlc}
-%    \begin{macrocode}
-\def\rsk@endlc{\iffalse{\fi\aftergroup}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@lowercase}
-%    \begin{macrocode}
-\def\rsk@lowercase{%
-    \let\rsk@changecase\rsk@startlc
-    \let\rsk@endcase\rsk@endlc
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macrocode}
-\rsk@lowercase
-%    \end{macrocode}
-%
-%    \begin{macro}{\rsk@resume}
-%    Here we get improved reporting of error context by changing
-%    end-of-line to be different from normal space. If we don't find a
-%    comma on the current line, assume it is an error.
-%    \begin{macrocode}
-\def\rsk@resume{%
-    \begingroup
-        \rsk@changecase
-        \aftergroup\rsk@set
-        \let\fsa@t\rsk@a
-        \begingroup
-            \catcode\endlinechar=\active
-            \lccode`\~=\endlinechar
-            \lowercase{\let~\par}%
-            \fsa@l
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@set@a}
-%    State 5: Read field value.
-%    \begin{macrocode}
-\def\rsk@set@a#1#2{%
-    \star@{\rsk@set@b#1{#2}}{}%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@set@b}
-%    \begin{macrocode}
-\def\rsk@set@b#1#2#3{%
-    \@xp\ifx \csname\rkv@setter#1\endcsname \relax
-        \rsk@unknown@key#1%
-    \fi
-    \edef\@tempa{\@xp\@nx\csname \rkv@setter#1\endcsname}%
-    \toks@\@xp{\@tempa{#2}{#3}}%
-    \edef\@tempa{%
-        \global\rsk@toks{\the\rsk@toks \the\toks@}%
-    }%
-    \@tempa
-    \rsk@resume
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@end}
-%    State 6: Done.
-%
-%    Lets see, now why did I add this?
-%    \begin{macrocode}
-\def\rsk@end{%
-        \global\let\rsk@set\rsk@terminate
-        \rsk@endcase
-    \endgroup
-    \endcsname
-    \afterassignment\rsk@finish
-    \toks@\bgroup
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@terminate}
-%    \begin{macrocode}
-\def\rsk@terminate{\@xp\@gobble\csname}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\NoCommaWarning}
-%    \begin{macrocode}
-\def\NoCommaWarning{\PackageWarning{rkeyval}{Missing comma}}%
-%    \end{macrocode}
-%    \end{macro}
-%
-%%  %    \begin{macro}{\NoCommaError}
-%%  %    \begin{macrocode}
-%%  \def\NoCommaError{\rsk@err{Missing comma}\@ehc}
-%%  %    \end{macrocode}
-%%  %    \end{macro}
-%
-%    \begin{macro}{\rsk@nocomma}
-%    \begin{macrocode}
-\def\rsk@nocomma{\NoCommaWarning}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@err}
-%    \begin{macrocode}
-\def\rsk@err{\PackageError{rkeyval}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@errf}
-%    \begin{macrocode}
-\def\rsk@errf{\rsk@err{Missing open brace}\@ehc\rsk@b}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@erraa}
-%    \begin{macrocode}
-\long\def\rsk@erraa{\rsk@nocomma \let\fsa@t\rsk@b \fsa@l}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@errb}
-%    \begin{macrocode}
-\def\rsk@errb{\rsk@err{Missing key name}\@ehc\rsk@d}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@errc}
-%    \begin{macrocode}
-\def\rsk@errc{\rsk@err{Invalid key name character}\@ehc\fsa@b}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\rsk@noequal}
-%    \begin{macrocode}
-\def\rsk@noequal{\rsk@err{Missing equal sign}\@ehc\rsk@d}
-%    \end{macrocode}
-%    \end{macro}
-%    \begin{macro}{\rsk@erre}
-%    In this case we guess that the value is without braces but probably
-%    terminated with a comma. We want to scan up to the comma in order
-%    to get back in synch.
-%    \begin{macrocode}
-\def\rsk@erre#1,{%
-        \rsk@err{Missing open brace for key value}\@ehc
-        \iffalse{\fi
-    \endgroup
-    \endcsname
-    \rsk@endcase }{#1},%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macrocode}
-\PopCatcodes
-%    \end{macrocode}
-%
-%    The usual \cs{endinput} to ensure that random garbage at the end of
-%    the file doesn't get copied by \fn{docstrip}.
-%    \begin{macrocode}
-\endinput
-%    \end{macrocode}
-%
-% \CheckSum{871}
-% \Finale
diff --git a/Master/texmf-dist/source/latex/amslatex/textcmds.dtx b/Master/texmf-dist/source/latex/amslatex/textcmds.dtx
deleted file mode 100644
index cbd82171c0a..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/textcmds.dtx
+++ /dev/null
@@ -1,283 +0,0 @@
-%%% ====================================================================
-%%% @LaTeX-doc-source-file{
-%%%   filename  = "textcmds.dtx",
-%%%   version   = "1.05",
-%%%   date      = "2002/04/16",
-%%%   time      = "08:47:47 EDT",
-%%%   author    = "Michael J Downes",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support@ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "Short forms for textemdash and the other LaTeX
-%%%                commands that correspond to ligatures of
-%%%                convenience.",
-%%%   checksum  = "55773 283 1136 10227",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-% \iffalse
-%<*driver>
-\NeedsTeXFormat{LaTeX2e}
-\documentclass{amsdtx}
-% Undo some things defined by amsdtx.cls
-\let\qq=\UnDefined \let\mdash=\UnDefined \let\ndash=\UnDefined
-\usepackage{textcmds}
-\begin{document}
-\title{The \pkg{textcmds} package}
-\author{Michael~J. Downes\\American Mathematical Society}
-\date{Version \fileversion, \filedate}
-\hDocInput{textcmds.dtx}
-\end{document}
-%</driver>
-% \fi
-%
-% \maketitle
-% \section{Introduction}
-%
-%    The \pkg{textcmds} package provides shorthand commands for all the
-%    text symbols that are traditionally produced in \LaTeX{} documents
-%    by non-letter ligatures. One of the principal benefits of using
-%    these commands is that it makes translating your document from
-%    \LaTeX{} to some other form (e.g., HTML) easier and less bug-prone.
-%    But it also makes your document less dependent on the use of
-%    special font metric files having the required ligature information,
-%    and it makes it far easier to achieve special effects for the
-%^^A Either don't use \mdash here, or add textcmds pkg in the driver.
-%    characters in question\textemdash for example, to add or not to add
-%    a small amount of extra space around an em-dash character. With the
-%    ligature method you have to manually add the space for each
-%    instance, whereas if you use the \verb'\mdash' command, it suffices
-%    to change the definition of \verb'\mdash' to suit your wishes.
-%
-%    All of these definitions use the preferred
-%    font-encoding-independent \LaTeX{} commands to obtain the
-%    characters in question.
-% \begin{center}
-% \begin{tabular}{lll}
-% \textbf{Command}& \textbf{Definition}& \textbf{Result}\\
-% \cn{mdash}& \cn{textemdash}& \mdash\\
-% \cn{ndash}& \cn{textendash}& \ndash\\
-% \cn{qd}& \cn{textquestiondown}& \qd\\
-% \cn{xd}& \cn{textexclamdown}& \xd\\
-% \cn{ldq}& \cn{textquotedblleft}& \ldq\\
-% \cn{rdq}& \cn{textquotedblright}& \rdq\\
-% \cn{lq}& \cn{textquoteleft}& \lq\\
-% \cn{rq}& \cn{textquoteright}& \rq
-% \end{tabular}
-% \end{center}
-%
-%    This package also provides short forms for certain text
-%    symbols whose generic name is too long for convenient entry.
-%    (The \cn{cwm} command does not produce visible output but marks
-%    word boundaries in a compound word.)
-% \begin{center}
-% \begin{tabular}{lll}
-% \textbf{Command}& \textbf{Definition}& \textbf{Result}\\
-% \cn{bul}& \cn{textbullet}& \bul\\
-% \cn{vsp}& \cn{textvisiblespace}& \vsp\\
-% \cn{pdc}& \cn{textperiodcentered}& \pdc\\
-% \cn{vrt}& \cn{textbar}& \vrt\\
-% \cn{cir}& \cn{textasciicircum}& \cir\\
-% \cn{til}& \cn{textasciitilde}& \til\\
-% \cn{bsl}& \cn{textbackslash}& \bsl\\
-% \cn{cwm}& \cn{textcompwordmark}& \cwm
-% \end{tabular}
-% \end{center}
-%
-%    Finally, a few other miscellaneous commands are provided, including
-%    a quoting command \cn{qq}. It seems clearly consonant with other
-%    parts of \LaTeX{} to write \verb'\qq{...}' to quote a word or short
-%    phrase rather than \verb'\ldq ...\rdq'; and the use of higher-level
-%    markup is groundwork that must be laid if one should ever want to
-%    do anything more sophisticated at the boundaries of a quoted
-%    expression (such as automatically transposing the quote character
-%    with following punctuation, if traditional rather than logical
-%    punctuation style is desired).
-%
-% \begin{center}
-% \begin{tabular}{lll}
-% \textbf{Example}& \textbf{Definition}& \textbf{Result}\\
-% \verb'\qq{some text}'& \verb'\ldq#1\rdq'& \qq{some text}\\
-% \verb'\lara{some text}'& \verb'\textlangle#1\textrangle'&
-%    \lara{some text}\\
-% \verb'Jello\tsup{TM}'& \textit{raise .9ex}\verb'{\supsize#1}'&
-%    Jello\tsup{TM}\\
-% \verb'Jello\tsub{TM}'& \textit{lower .6ex}\verb'{\supsize#1}'&
-%    Jello\tsub{TM}\\
-% \verb'a\tprime b'& \verb'\tsup{\textprimechar}'&
-%    a\tprime b
-% \end{tabular}
-% \end{center}
-%
-% \StopEventually{}
-%
-%    \begin{macrocode}
-%<*pkg>
-%    \end{macrocode}
-%
-% \section{Implementation}
-%
-%    Package name, date, version number.
-%    \begin{macrocode}
-\ProvidesPackage{textcmds}[2002/04/16 v1.05]
-%    \end{macrocode}
-%
-%    Dashes and inverted beginning-of-sentence punctuation.
-%    \begin{macrocode}
-\providecommand{\mdash}{\textemdash\penalty\exhyphenpenalty}
-\providecommand{\ndash}{\textendash\penalty\exhyphenpenalty}
-\newcommand{\qd}{\textquestiondown}
-\newcommand{\xd}{\textexclamdown}
-%    \end{macrocode}
-%
-%    Quote commands. Note that \cs{lq} and \cs{rq} are defined in the
-%    \LaTeX{} kernel to produce functionally different quote characters.
-%    \begin{macrocode}
-\newcommand{\ldq}{\textquotedblleft}
-\newcommand{\rdq}{\textquotedblright}
-\newcommand{\lsq}{\textquoteleft}
-\newcommand{\rsq}{\textquoteright}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\newcommand{\bul}{\textbullet}%
-\newcommand{\vsp}{\textvisiblespace}%
-\newcommand{\pdc}{\textperiodcentered}%
-\newcommand{\vrt}{\textbar}%
-\newcommand{\cir}{\textasciicircum}%
-\newcommand{\til}{\textasciitilde}%
-\newcommand{\bsl}{\textbackslash}%
-\newcommand{\cwm}{\textcompwordmark}%
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\providecommand{\qq}[1]{\ldq#1\/\rdq}
-%    \end{macrocode}
-%
-%    Unlike \cs{textsuperscript} and \cs{textsubscript}, these do not
-%    use math mode at all. The difference between \cn{scriptsize} and
-%    \cn{supsize} is that the former is fixed at a single constant size
-%    regardless of context, whereas the latter adapts to the current
-%    font size.
-%    \begin{macrocode}
-\newcommand{\supsize}{%
-%    \end{macrocode}
-%    Cf \cs{glb@settings}.
-%    \begin{macrocode}
-  \expandafter\ifx\csname S@\f@size\endcsname\relax
-    \calculate@math@sizes
-  \fi
-  \csname S@\f@size\endcsname
-  \fontsize\sf@size\z@\selectfont
-}
-\DeclareRobustCommand{\tsup}[1]{%
-  \leavevmode\raise.9ex\hbox{\supsize #1}%
-}
-\DeclareRobustCommand{\tsub}[1]{%
-  \leavevmode\lower.6ex\hbox{\supsize #1}%
-}
-%    \end{macrocode}
-%
-%    The \LaTeX{} kernel contains fallback definitions for various
-%    symbols that traditionally came from the \texttt{cmsy} font:
-%\begin{verbatim}
-%\DeclareTextSymbolDefault{\textbraceleft}{OMS}
-%\end{verbatim}
-%    But there is no definition of that kind for the cmsy prime
-%    character that we want to use for \cn{tprime}. So we need to do it
-%    here.
-%    \begin{macrocode}
-\DeclareTextSymbolDefault{\textprimechar}{OMS}
-\DeclareTextSymbol{\textprimechar}{OMS}{48}
-\DeclareRobustCommand{\tprime}{\tsup{\textprimechar}}
-%    \end{macrocode}
-%
-%    And one more pair of symbols that are sometimes useful in text, yet
-%    do not have suitable text definitions in the \LaTeX{} kernel. (They
-%    do in the \pkg{textcomp} package.)
-%
-%    If the \pkg{textcmds} package is loaded together with the
-%    \pkg{textcomp} package, we don't want to clobber the TS1 default.
-%    \begin{macrocode}
-\@ifundefined{textlangle}{%
-  \DeclareTextSymbolDefault{\textlangle}{OMS}
-  \DeclareTextSymbolDefault{\textrangle}{OMS}
-}{}
-\DeclareTextSymbol{\textlangle}{OMS}{"68}
-\DeclareTextSymbol{\textrangle}{OMS}{"69}
-%    \end{macrocode}
-%    Not sure what's the best name for the angle-brackets analog of the
-%    \cn{qq} command. How about ``lara'' for ``left-angle right-angle''?
-%
-%    Unlike the quotes case, it is highly unlikely that the font
-%    contains kern information for the rangle character and the
-%    character preceding it! So let's put in an italic correction.
-%    \begin{macrocode}
-\DeclareRobustCommand{\lara}[1]{\textlangle#1\/\textrangle}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\csname endinput\endcsname
-%</pkg>
-%    \end{macrocode}
-%
-%    Do you want some Emacs code to convert \verb"--" to \cn{ndash} while
-%    you write? And \verb"``" to \verb'\qq{' ? Try this.
-%    \begin{macrocode}
-<*emacs>
-(defvar latex-ndash-command "\\ndash"
-  "*String to insert for an n-dash in LaTeX mode.")
-
-(defvar latex-mdash-command "\\mdash"
-  "*String to insert for an m-dash in LaTeX mode.")
-
-(defvar latex-quote-command "\\qq"
-  "*String to insert for quotes in LaTeX mode.")
-
-(defun latex-maybe-start-quotes (arg)
-  "Insert the beginning of a \\qq{...} structure if the preceding char is
-a left quote."
-  (interactive "*p")
-  (if (= (preceding-char) ?\`)
-      (progn
-        (delete-backward-char 1)
-        (insert-and-inherit (concat latex-quote-command "\{")))
-    (self-insert-command arg)))
-
-(defun latex-maybe-end-quotes (arg)
-  "Insert the end of a \\qq{...} structure if appropriate."
-  (interactive "*p")
-  (if (= (preceding-char) ?\')
-      (progn
-        (delete-backward-char 1)
-        (insert-and-inherit "\}"))
-    (self-insert-command arg)))
-
-(defun latex-maybe-dash (arg)
-  "Convert two or three hyphens to \\mdash or \\ndash."
-  (interactive "*p")
-  (cond
-   ((re-search-backward
-     (concat (regexp-quote latex-ndash-command) " *\\=") nil t)
-    (replace-match (concat (regexp-quote latex-mdash-command) " ")))
-   ((= (preceding-char) ?-)
-    (delete-backward-char 1)
-    (insert-and-inherit (concat latex-ndash-command " ")))
-   (t (self-insert-command arg))))
-
-(add-hook 'TeX-mode-hook
-  '(lambda
-    (define-key LaTeX-mode-map "\`" 'latex-maybe-start-quotes)
-    (define-key LaTeX-mode-map "\'" 'latex-maybe-end-quotes)
-    (define-key LaTeX-mode-map "-" 'latex-maybe-dash)))
-</emacs>
-%    \end{macrocode}
-%
-% \CheckSum{133}
-% \Finale
diff --git a/Master/texmf-dist/source/latex/amslatex/upref.dtx b/Master/texmf-dist/source/latex/amslatex/upref.dtx
deleted file mode 100644
index 843126b3b58..00000000000
--- a/Master/texmf-dist/source/latex/amslatex/upref.dtx
+++ /dev/null
@@ -1,151 +0,0 @@
-%%% ====================================================================
-%%%  @LaTeX-file{
-%%%     filename        = "upref.dtx",
-%%%     version         = "2.01",
-%%%     date            = "2004/07/29",
-%%%     time            = "16:37:01 EDT",
-%%%     checksum        = "07926 151 617 5530",
-%%%     author          = "American Mathematical Society",
-%%%     copyright       = "Copyright 1996 American Mathematical Society,
-%%%                        all rights reserved.  Copying of this file is
-%%%                        authorized only if either:
-%%%                        (1) you make absolutely no changes to your copy,
-%%%                        including name; OR
-%%%                        (2) if you do make changes, you first rename it
-%%%                        to some other name.",
-%%%     address         = "American Mathematical Society,
-%%%                        Technical Support,
-%%%                        Electronic Products and Services,
-%%%                        P. O. Box 6248,
-%%%                        Providence, RI 02940,
-%%%                        USA",
-%%%     telephone       = "401-455-4080 or (in the USA and Canada)
-%%%                        800-321-4AMS (321-4267)",
-%%%     FAX             = "401-331-3842",
-%%%     email           = "tech-support@ams.org (Internet)",
-%%%     codetable       = "ISO/ASCII",
-%%%     keywords        = "latex, amslatex, ams-latex, cross references",
-%%%     supported       = "yes",
-%%%     abstract        = "This is a LaTeX package that provides printing
-%%%                        of \cn{ref}s in an upright font even if the
-%%%                        current context is italic or slanted.",
-%%%     docstring       = "The checksum field above contains a CRC-16
-%%%                        checksum as the first value, followed by the
-%%%                        equivalent of the standard UNIX wc (word
-%%%                        count) utility output of lines, words, and
-%%%                        characters.  This is produced by Robert
-%%%                        Solovay's checksum utility.",
-%%%  }
-%%% ====================================================================
-%
-%\iffalse
-%<*driver>
-\documentclass{amsdtx}
-\begin{document}
-\title{The \pkg{upref} package}
-\author{American Mathematical Society\\ Michael Downes\\
-  updated by Barbara Beeton}
-\date{Version \fileversion, \filedate}
-\hDocInput{upref.dtx}
-\end{document}
-%</driver>
-%\fi
-%
-% \maketitle
-%
-% \MakeShortVerb\|
-%
-% \section{Introduction}
-%
-%    This package changes the \cn{ref} command so that it never applies
-%    a slanted font shape to its argument, regardless of context. This
-%    was the default behavior in \cls{amsart} version 1.1. Starting with
-%    \cls{amsart} version 1.2, upright references must be obtained via
-%    |\usepackage{upref}|.
-%
-% \StopEventually{}
-%
-% \section{Implementation}
-%    Give package name, date, version.
-%    \begin{macrocode}
-\NeedsTeXFormat{LaTeX2e}[1995/06/01]
-\ProvidesPackage{upref}[2004/07/29 v2.01]
-%    \end{macrocode}
-%
-%  \begin{macro}{\@noref}
-%    Give a warning if a cited reference isn't defined.
-%    \begin{macrocode}
-\newcommand{\@noref}[1]{%
-  \G@refundefinedtrue
-  \nfss@text{\reset@font\bfseries ??}%
-  \@latex@warning{Reference `#1' on page \thepage\space undefined}%
-}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{\@setref}
-%    If the current fontshape is italic or slanted, we want to switch to
-%    upright/roman for printing the number of a \cn{ref}. This requires
-%    changing the \cs{@setref} command.
-%
-%    Since \cs{@setref} is modified by the \pkg{hyperref} package, delay
-%    the definition until \cs{AtBeginDocument}.  Then check whether
-%    \pkg{hyperref} is loaded.  If it is, we have to redefine some
-%    control sequences that \pkg{hyperref} defined in order to get
-%    upright references even in a \pkg{hyperref} environment.
-%    [tjk,bnb, 2004/07/29]
-%    \begin{macrocode}
-\AtBeginDocument{%
-  \@ifpackageloaded{hyperref}{%
-%    \end{macrocode}
-%    We overload \cs{Hy@setref@link} as this is where the upright
-%    references get clobbered.  Used in overloaded \cs{@setref}.
-%    \begin{macrocode}
-    \def\Hy@setref@link#1#2#3#4#5#6\@nil#7{%
-      \begingroup
-      \toks0{\hyper@@link{#5}{#4}}%
-      \toks1\@xp{#7{\textup{#1}\hbox{}}{#2}{#3}{#4}{#5}}%
-      \edef\x{\endgroup\the\toks0{\the\toks1}}\x
-    }%
-%    \end{macrocode}
-%    We should not have to overload \cs{@setref}, but there is
-%    a chance that an author is using an old version of hyperref
-%    which does not use \cs{Hy@setref@link} in \cs{@setref}.
-%    \begin{macrocode}
-    \def\@setref#1#2#3{%
-      \ifx#1\relax
-        \@xp\protect\@noref{#3}%
-      \else
-        \@xp\Hy@setref@link#1\@empty\@empty\@nil{#2}%
-      \fi
-    }%
-  }{%
-    \def\@setref#1#2#3{\ifx#1\relax
-        \protect\@noref{#3}%
-      \else
-        \protect\textup{\@xp#2#1\hbox{}}%
-      \fi
-    }%
-  }%
-}
-%    \end{macrocode}
-%  \end{macro}
-%
-%  \begin{macro}{\@upn}
-%    The function \cs{\@upn} is used to force theorem numbers and
-%    similar elements to be upright in sloped or italic contexts.
-%    If a suitable italic font with upright numbers and punctuation is
-%    available, this function should be redefined to be a no-op.
-%    \begin{macrocode}
-\providecommand\@upn{\textup}
-%    \end{macrocode}
-%  \end{macro}
-%
-%    The usual \cs{endinput} to ensure that random garbage at the end of
-%    the file doesn't get copied by \fn{docstrip}.
-%    \begin{macrocode}
-\endinput
-%    \end{macrocode}
-%
-% \CheckSum{61}
-% \Finale
diff --git a/Master/texmf-dist/tex/latex/amslatex/amsart.cls b/Master/texmf-dist/tex/latex/amslatex/amsart.cls
deleted file mode 100644
index 6161f65c164..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/amsart.cls
+++ /dev/null
@@ -1,1922 +0,0 @@
-%%
-%% This is file `amsart.cls',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsclass.dtx  (with options: `amsart,classes')
-%% 
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsclass.dtx",
-%%%   version   = "2.20",
-%%%   date      = "2004/08/06",
-%%%   time      = "13:03:53 EDT",
-%%%   checksum  = "53558 5204 20497 185872",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995, 1999, 2004
-%%%                American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Publications Technical Group,
-%%%                201 Charles Street,
-%%%                Providence, RI 02904,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, AMS, documentclass, theorem",
-%%%   supported = "yes",
-%%%   abstract  = "This is the source for the amsthm package and three
-%%%                AMS document classes: amsart, amsproc, and amsbook.
-%%%                They are designed for use with LaTeX.",
-%%%   docstring = "The checksum field above contains a CRC-16 checksum
-%%%                as the first value, followed by the equivalent of
-%%%                the standard UNIX wc (word count) utility output of
-%%%                lines, words, and characters.  This is produced by
-%%%                Robert Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1995/06/01]% LaTeX date must be June 1995 or later
-\ProvidesClass{amsart}[2004/08/06 v2.20]
-\global\expandafter\let\csname ver@amsthm.sty\expandafter\endcsname
-  \csname ver@\@currname.\@currext\endcsname
-\let\@xp=\expandafter
-\let\@nx=\noexpand
-\def\@oparg#1[#2]{\@ifnextchar[{#1}{#1[#2]}}
-\long\def\@ifempty#1{\@xifempty#1@@..\@nil}
-\long\def\@xifempty#1#2@#3#4#5\@nil{%
-  \ifx#3#4\@xp\@firstoftwo\else\@xp\@secondoftwo\fi}
-\long\def\@ifnotempty#1{\@ifempty{#1}{}}
-\def\setboxz@h{\setbox\z@\hbox}
-\def\@addpunct#1{%
-  \relax\ifhmode
-    \ifnum\spacefactor>\@m \else#1\fi
-  \fi}
-\def\nopunct{\spacefactor 1007 }
-\def\frenchspacing{\sfcode`\.1006\sfcode`\?1005\sfcode`\!1004%
-  \sfcode`\:1003\sfcode`\;1002\sfcode`\,1001 }
-\def\@tempa#1#2\@nil{\edef\@classname{#1}}
-\expandafter\@tempa\@currnamestack{}{}{}\@nil
-\ifx\@classname\@empty \edef\@classname{\@currname}\fi
-\def\@True{00}
-\def\@False{01}
-\newcommand\newswitch[2][False]{%
-  \expandafter\@ifdefinable\csname ?@#2\endcsname{%
-    \global\expandafter\let\csname ?@#2\expandafter\endcsname
-      \csname @#1\endcsname
-  }%
-}
-\newcommand{\setFalse}[1]{%
-  \expandafter\let\csname ?@#1\endcsname\@False
-}
-\newcommand{\setTrue}[1]{%
-  \expandafter\let\csname ?@#1\endcsname\@True
-}
-\newswitch{}
-\DeclareRobustCommand{\except}[1]{%
-  \if\csname ?@#1\endcsname \expandafter\@gobble
-  \else \expandafter\@firstofone
-  \fi
-}
-\DeclareRobustCommand{\for}[1]{%
-  \if\csname ?@#1\endcsname \expandafter\@firstofone
-  \else \expandafter\@gobble
-  \fi
-}
-\DeclareRobustCommand{\forany}[1]{%
-  \csname for@any@01\endcsname#1,?,\@nil
-}
-\@namedef{for@any@\@False}#1,{%
-  \csname for@any@%
-    \csname ?@\zap@space#1 \@empty\endcsname
-  \endcsname
-}
-\@namedef{?@?}{x}
-\@namedef{for@any@\@True}#1\@nil#2{#2}
-\def\for@any@x{\@car\@gobble}
-\DeclareOption{a4paper}{\paperheight 297mm\paperwidth 210mm
-  \textheight 54.5pc }
-\DeclareOption{letterpaper}{\paperheight 11in\paperwidth 8.5in }
-\DeclareOption{landscape}{\@tempdima\paperheight
-  \paperheight\paperwidth \paperwidth\@tempdima}
-\DeclareOption{portrait}{}
-\DeclareOption{oneside}{\@twosidefalse \@mparswitchfalse}
-\DeclareOption{twoside}{\@twosidetrue  \@mparswitchtrue}
-\DeclareOption{draft}{\overfullrule5\p@
-  \ClassWarningNoLine{\@classname}{%
-    When the draft option is used, the
-      \protect\includegraphics\MessageBreak
-    command will print blank placeholder boxes\MessageBreak
-    for the graphics}%
-}
-\DeclareOption{final}{\overfullrule\z@ }
-\def\dateposted#1{\def\@dateposted{#1}}%
-\let\@dateposted\@empty
-\def\@setdateposted{%
-  \newline Article electronically published on \@dateposted}
-\def\article@logo{%
-  \set@logo{%
-    \publname
-    \ifx\@empty\currentvolume
-    \else \newline\volinfo, \pageinfo
-    \fi
-    \newline \@PII
-    \ifx\@empty\@dateposted \else \@setdateposted\fi
-  }%
-}
-\def\eonly@logo{%
-  \set@logo{%
-    \publname
-    \newline\volinfo, \pageinfo
-    \ifx\@empty\@dateposted \else \@setdateposted\fi
-    \newline \@PII
-  }%
-}
-\def\@logofont{\fontsize{6}{7\p@}\selectfont}
-\long\def\set@logo#1{%
-  \vbox to\headheight{%
-    \@parboxrestore \@logofont
-    \noindent#1\par\vss
-  }%
-}
-\DeclareOption{e-only}{%
-  \def\volinfo{Volume \currentvolume}%
-  \dateposted{Xxxx XX, XXXX}%
-  \def\@setdateposted{\ (\@dateposted)}%
-  \let\article@logo\eonly@logo
-}
-\newif\if@titlepage
-\DeclareOption{titlepage}{\@titlepagetrue}
-\DeclareOption{notitlepage}{\@titlepagefalse}
-\DeclareOption{onecolumn}{\@twocolumnfalse}
-\DeclareOption{twocolumn}{\@twocolumntrue}
-\DeclareOption{nomath}{}
-\DeclareOption{noamsfonts}{}
-\DeclareOption{psamsfonts}{%
-  \PassOptionsToPackage{psamsfonts}{amsfonts}%
-  \PassOptionsToPackage{cmex10}{amsmath}}
-\newif\iftagsleft@
-\DeclareOption{leqno}{%
-  \tagsleft@true \PassOptionsToPackage{leqno}{amsmath}}
-\DeclareOption{reqno}{%
-  \tagsleft@false \PassOptionsToPackage{reqno}{amsmath}}
-\newif\ifctagsplit@
-\DeclareOption{centertags}{%
-  \ctagsplit@true \PassOptionsToPackage{centertags}{amsmath}}
-\DeclareOption{tbtags}{%
-  \ctagsplit@false \PassOptionsToPackage{tbtags}{amsmath}}
-\DeclareOption{fleqn}{}%
-\newcommand{\@mainsize}{10}
-\newcommand{\@ptsize}{0}
-\newcommand{\larger}[1][1]{%
-  \count@\@currsizeindex \advance\count@#1\relax
-  \ifnum\count@<\z@ \count@\z@ \else\ifnum\count@>12 \count@12 \fi\fi
-  \ifcase\count@
-    \Tiny\or\Tiny\or\tiny\or\SMALL\or\Small\or\small
-    \or\normalsize
-    \or\large\or\Large\or\LARGE\or\huge\or\Huge\else\Huge
-  \fi
-}
-\newcommand{\smaller}[1][1]{\larger[-#1]}
-\def\@adjustvertspacing{%
-  \bigskipamount.7\baselineskip plus.7\baselineskip
-  \medskipamount\bigskipamount \divide\medskipamount\tw@
-  \smallskipamount\medskipamount \divide\smallskipamount\tw@
-  \abovedisplayskip\medskipamount
-  \belowdisplayskip \abovedisplayskip
-  \abovedisplayshortskip\abovedisplayskip
-  \advance\abovedisplayshortskip-1\abovedisplayskip
-  \belowdisplayshortskip\abovedisplayshortskip
-  \advance\belowdisplayshortskip 1\smallskipamount
-  \jot\baselineskip \divide\jot 4 \relax
-}
-\renewcommand\normalsize{\@xsetfontsize\normalsize 6%
-  \@adjustvertspacing \let\@listi\@listI}
-\DeclareRobustCommand{\Tiny}{\@xsetfontsize\Tiny 1}
-\DeclareRobustCommand{\tiny}{\@xsetfontsize\tiny 2}
-\DeclareRobustCommand{\SMALL}{\@xsetfontsize\SMALL 3}
-\DeclareRobustCommand{\Small}{\@xsetfontsize\Small 4%
-  \@adjustvertspacing
-  \def\@listi{\topsep\smallskipamount \parsep\z@skip \itemsep\z@skip
-    \leftmargin=\leftmargini
-    \labelwidth=\leftmargini \advance\labelwidth-\labelsep
-  }%
-}
-\DeclareRobustCommand{\small}{\@xsetfontsize\small 5\@adjustvertspacing}
-\def\footnotesize{\Small}
-\def\scriptsize{\SMALL}
-\DeclareRobustCommand{\large}{\@xsetfontsize\large 7\@adjustvertspacing}
-\DeclareRobustCommand{\Large}{\@xsetfontsize\Large 8\@adjustvertspacing}
-\DeclareRobustCommand{\LARGE}{\@xsetfontsize\LARGE 9}
-\DeclareRobustCommand{\huge}{\@xsetfontsize\huge{10}}
-\DeclareRobustCommand{\Huge}{\@xsetfontsize\Huge{11}}
-\def\@xsetfontsize#1#2{%
-  \chardef\@currsizeindex#2\relax
-  \edef\@tempa{\@nx\@setfontsize\@nx#1%
-    \@xp\ifcase\@xp\@currsizeindex\@typesizes
-      \else{99}{99}\fi}%
-  \@tempa
-}
-\chardef\@currsizeindex=6
-\widowpenalty=10000
-\clubpenalty=10000
-\brokenpenalty=10000
-\newdimen\linespacing
-\lineskip=1pt \lineskiplimit=1pt
-\normallineskip=1pt \normallineskiplimit=1pt
-\let\baselinestretch=\@empty
-\headheight=8pt \headsep=14pt
-\footskip=12pt
-\textheight=50.5pc \topskip=10pt
-\textwidth=30pc
-\columnsep=10pt \columnseprule=0pt
-\marginparwidth=90pt
-\marginparsep=11pt
-\marginparpush=5pt
-\AtBeginDocument{\settoheight{\footnotesep}{\footnotesize M$^1$}}
-\skip\footins=7pt plus11pt
-\skip\@mpfootins=\skip\footins
-\fboxsep=3pt \fboxrule=.4pt
-\arrayrulewidth=.4pt    \doublerulesep=2pt
-\labelsep=5pt           \arraycolsep=\labelsep
-\tabcolsep=\labelsep    \tabbingsep=\labelsep
-\floatsep=15pt plus 12pt    \dblfloatsep=15pt plus 12pt
-\textfloatsep=\floatsep  \dbltextfloatsep=15pt plus 12pt
-\intextsep=\floatsep
-\@fptop=0pt plus1fil     \@dblfptop=0pt plus1fil
-\@fpbot=0pt plus1fil     \@dblfpbot=0pt plus1fil
-\@fpsep=8pt plus2fil     \@dblfpsep=8pt plus2fil\relax
-\parskip=0pt \relax
-\newdimen\normalparindent
-\normalparindent=12pt
-\parindent=\normalparindent
-\partopsep=0pt \relax \parsep=0pt \relax \itemsep=0pt \relax
-\@lowpenalty=51         \@medpenalty=151        \@highpenalty=301
-\@beginparpenalty=-\@lowpenalty
-\@endparpenalty=-\@lowpenalty
-\@itempenalty=-\@lowpenalty
-\DeclareOption{10pt}{\def\@mainsize{10}\def\@ptsize{0}%
-  \def\@typesizes{%
-    \or{5}{6}\or{6}{7}\or{7}{8}\or{8}{10}\or{9}{11}%
-    \or{10}{12}% normalsize
-    \or{\@xipt}{13}\or{\@xiipt}{14}\or{\@xivpt}{17}%
-    \or{\@xviipt}{20}\or{\@xxpt}{24}}%
-  \normalsize \linespacing=\baselineskip
-}
-\DeclareOption{11pt}{\def\@mainsize{11}\def\@ptsize{1}%
-  \def\@typesizes{%
-    \or{6}{7}\or{7}{8}\or{8}{10}\or{9}{11}\or{10}{12}%
-    \or{\@xipt}{13}% normalsize
-    \or{\@xiipt}{14}\or{\@xivpt}{17}\or{\@xviipt}{20}%
-    \or{\@xxpt}{24}\or{\@xxvpt}{30}}%
-  \normalsize \linespacing=\baselineskip
-}
-\DeclareOption{12pt}{\def\@mainsize{12}\def\@ptsize{2}%
-  \def\@typesizes{%
-    \or{7}{8}\or{8}{10}\or{9}{11}\or{10}{12}\or{\@xipt}{13}%
-    \or{\@xiipt}{14}% normalsize
-    \or{\@xivpt}{17}\or{\@xviipt}{20}\or{\@xxpt}{24}%
-    \or{\@xxvpt}{30}\or{\@xxvpt}{30}}%
-  \normalsize \linespacing=\baselineskip
-}
-\DeclareOption{8pt}{\def\@mainsize{8}\def\@ptsize{8}%
-  \def\@typesizes{%
-    \or{5}{6}\or{5}{6}\or{5}{6}\or{6}{7}\or{7}{8}%
-    \or{8}{10}% normalsize
-    \or{9}{11}\or{10}{12}\or{\@xipt}{13}%
-    \or{\@xiipt}{14}\or{\@xivpt}{17}}%
-  \normalsize \linespacing=\baselineskip
-}
-\DeclareOption{9pt}{\def\@mainsize{9}\def\@ptsize{9}%
-  \def\@typesizes{%
-    \or{5}{6}\or{5}{6}\or{6}{7}\or{7}{8}\or{8}{10}%
-    \or{9}{11}% normalsize
-    \or{10}{12}\or{\@xipt}{13}\or{\@xiipt}{14}%
-    \or{\@xivpt}{17}\or{\@xviipt}{20}}%
-  \normalsize \linespacing=\baselineskip
-}
-\def\ps@empty{\let\@mkboth\@gobbletwo
-  \let\@oddhead\@empty \let\@evenhead\@empty
-  \let\@oddfoot\@empty \let\@evenfoot\@empty
-  \global\topskip\normaltopskip}
-\def\ps@plain{\ps@empty
-  \def\@oddfoot{\normalfont\scriptsize \hfil\thepage\hfil}%
-  \let\@evenfoot\@oddfoot}
-\newswitch{runhead}
-\def\ps@headings{\ps@empty
-  \def\@evenhead{%
-    \setTrue{runhead}%
-    \normalfont\scriptsize
-    \rlap{\thepage}\hfil
-    \def\thanks{\protect\thanks@warning}%
-    \leftmark{}{}\hfil}%
-  \def\@oddhead{%
-    \setTrue{runhead}%
-    \normalfont\scriptsize \hfil
-    \def\thanks{\protect\thanks@warning}%
-    \rightmark{}{}\hfil \llap{\thepage}}%
-  \let\@mkboth\markboth
-}
-\let\sectionname\@empty
-\let\subsectionname\@empty
-\let\subsubsectionname\@empty
-\let\paragraphname\@empty
-\let\subparagraphname\@empty
-\def\leftmark{\expandafter\@firstoftwo\topmark{}{}}
-\def\rightmark{\expandafter\@secondoftwo\botmark{}{}}
-\def\ps@firstpage{\ps@plain
-  \def\@oddfoot{\normalfont\scriptsize \hfil\thepage\hfil
-     \global\topskip\normaltopskip}%
-  \let\@evenfoot\@oddfoot
-  \def\@oddhead{\@serieslogo\hss}%
-  \let\@evenhead\@oddhead % in case an article starts on a left-hand page
-}
-\long\def\@nilgobble#1\@nil{}
-\def\markboth#1#2{%
-  \begingroup
-    \@temptokena{{#1}{#2}}\xdef\@themark{\the\@temptokena}%
-    \mark{\the\@temptokena}%
-  \endgroup
-  \if@nobreak\ifvmode\nobreak\fi\fi}
-\def\ps@myheadings{\ps@headings \let\@mkboth\@gobbletwo}
-\newskip\normaltopskip
-\normaltopskip=10pt \relax
-\let\sectionmark\@gobble
-\let\subsectionmark\@gobble
-\let\subsubsectionmark\@gobble
-\let\paragraphmark\@gobble
-
-\DeclareOption{makeidx}{}
-\ExecuteOptions{leqno,centertags,letterpaper,portrait,%
-  10pt,twoside,onecolumn,final}
-\ProcessOptions\relax
-\if@compatibility
-  \def\@tempa{\RequirePackage{amstex}\relax}%
-\else
-  \@ifclasswith{\@classname}{nomath}{%
-    \let\@tempa\relax
-  }{%
-    \def\@tempa{\RequirePackage{amsmath}\relax}%
-  }%
-\fi
-\@tempa % load amstex.sty or amsmath.sty
-\@ifundefined{numberwithin}{%
-  \newcommand{\numberwithin}[3][\arabic]{%
-    \@ifundefined{c@#2}{\@nocounterr{#2}}{%
-      \@ifundefined{c@#3}{\@nocnterr{#3}}{%
-        \@addtoreset{#2}{#3}%
-        \@xp\xdef\csname the#2\endcsname{%
-          \@xp\@nx\csname the#3\endcsname .\@nx#1{#2}}}}%
-  }
-  \csname newtoks\endcsname\@emptytoks
-}{}
-\if@compatibility
-\else
-  \@ifclasswith{\@classname}{noamsfonts}{%
-    % amsfonts package is not wanted
-  }{%
-    % amsfonts package IS wanted; test whether a recent enough version
-    % seems to be installed
-    \begingroup \fontencoding{U}\fontfamily{msa}\try@load@fontshape\endgroup
-    \global\@xp\let\csname U+msa\endcsname\relax % reset
-    \@ifundefined{U/msa/m/n}{%
-      \ClassError{\@classname}{%
-  Package `amsfonts' not installed, or version too old?\MessageBreak
-  Unable to get font info for the `msam' fonts in the expected form%
-      }{%
-  The amsfonts package will not be loaded, to avoid probable\MessageBreak
-  incompatibility problems. You can (a) use the `noamsfonts'
-      documentclass\MessageBreak
-  option next time, or (b) check that the amsfonts package is
-      installed\MessageBreak
-  correctly, and is not too old to be compatible.%
-      }%
-    }{%
-      \RequirePackage{amsfonts}[1995/01/01]\relax
-    }%
-  }
-\fi % end yesamsfonts branch
-\let\cleardouble@page\cleardoublepage
-\AtBeginDocument{%
-  \ifx\cleardouble@page\cleardoublepage
-    \def\cleardoublepage{\clearpage{\pagestyle{empty}\cleardouble@page}}
-  \fi
-}
-\newcommand{\uppercasenonmath}[1]{\toks@\@emptytoks
-  \@xp\@skipmath\@xp\@empty#1$$%
-  \edef#1{{\@nx\protect\@nx\@upprep\the\toks@}}%
-}
-\newcommand{\@upprep}{%
-  \spaceskip1.3\fontdimen2\font plus1.3\fontdimen3\font
-  \upchars@}
-\newcommand{\upchars@}{%
-  \def\ss{SS}\def\i{I}\def\j{J}\def\ae{\AE}\def\oe{\OE}%
-  \def\o{\O}\def\aa{\AA}\def\l{\L}\def\Mc{M{\scshape c}}}
-\providecommand{\Mc}{Mc}
-\newcommand{\@skipmath}{}
-\long\def\@skipmath#1$#2${%
-  \@xskipmath#1\(\)%
-  \@ifnotempty{#2}{\toks@\@xp{\the\toks@$#2$}\@skipmath\@empty}}%
-\newcommand{\@xskipmath}{}
-\long\def\@xskipmath#1\(#2\){%
-  \uppercase{\toks@\@xp\@xp\@xp{\@xp\the\@xp\toks@#1}}%
-  \@ifnotempty{#2}{\toks@\@xp{\the\toks@\(#2\)}\@xskipmath\@empty}}%
-\def\altucnm#1{%
-  \MakeTextUppercase{\toks@{#1}}%
-  \edef#1{\the\toks@}%
-}
-\AtBeginDocument{%
-  \@ifundefined{MakeTextUppercase}{}{\let\uppercasenonmath\altucnm}%
-}
-\@ifundefined{MakeUppercase}{\let\MakeUppercase\uppercase}{}%
-\newcommand{\today}{%
-  \relax\ifcase\month\or
-  January\or February\or March\or April\or May\or June\or
-  July\or August\or September\or October\or November\or December\fi
-  \space\number\day, \number\year}
-\DeclareOldFontCommand{\rm}{\normalfont\rmfamily}{\mathrm}
-\DeclareOldFontCommand{\sf}{\normalfont\sffamily}{\mathsf}
-\DeclareOldFontCommand{\tt}{\normalfont\ttfamily}{\mathtt}
-\DeclareOldFontCommand{\bf}{\normalfont\bfseries}{\mathbf}
-\DeclareOldFontCommand{\it}{\normalfont\itshape}{\mathit}
-\DeclareOldFontCommand{\sl}{\normalfont\slshape}{\@nomath\sl}
-\DeclareOldFontCommand{\sc}{\normalfont\scshape}{\@nomath\sc}
-%%\if@compatibility
-%%\else
-%%  \def\@obsolete@fontswitch#1#2#3{%
-%%    \@latex@warning@no@line{%
-%%      Command {\string#1...}\on@line\space is obsolete;\MessageBreak
-%%      the LaTeX2e equivalent is \string#3{...}}%
-%%    \gdef#1{\@fontswitch\relax#3}%
-%%  }
-%%  \DeclareRobustCommand*\cal{%
-%%    \@xp\@obsolete@fontswitch\csname cal \endcsname\relax\mathcal}
-%%  \DeclareRobustCommand*\mit{%
-%%    \@xp\@obsolete@fontswitch\csname mit \endcsname\relax\mathnormal}
-%%\fi
-\renewcommand*{\title}[2][]{\gdef\shorttitle{#1}\gdef\@title{#2}}
-\edef\title{\@nx\@dblarg
-  \@xp\@nx\csname\string\title\endcsname}
-\renewcommand{\author}[2][]{%
-  \ifx\@empty\authors
-    \gdef\authors{#2}%
-  \else
-    \g@addto@macro\authors{\and#2}%
-    \g@addto@macro\addresses{\author{}}%
-  \fi
-  \@ifnotempty{#1}{%
-    \ifx\@empty\shortauthors
-      \gdef\shortauthors{#1}%
-    \else
-      \g@addto@macro\shortauthors{\and#1}%
-    \fi
-  }%
-}
-\edef\author{\@nx\@dblarg
-  \@xp\@nx\csname\string\author\endcsname}
-\let\shortauthors\@empty   \let\authors\@empty
-\newif\ifresetcontrib  \resetcontribfalse
-\newcommand\contrib[2][]{%
-  \def\@tempa{#1}%
-  \ifx\@empty\@tempa
-  \else
-    \ifresetcontrib \@xcontribs
-    \else \global\resetcontribtrue
-    \fi
-  \fi
-  \ifx\@empty\contribs
-    \gdef\contribs{#1 #2}%
-  \else
-    \g@addto@macro\contribs{\and#1 #2}%
-  \fi
-  \@wraptoccontribs{#1}{#2}%
-}
-\def\wraptoccontribs#1#2{}
-\def\@xcontribs{%
-  \author@andify\contribs
-  \ifx\@empty\xcontribs
-    \xdef\xcontribs{\contribs}%
-  \else
-    \xdef\xcontribs{\xcontribs, \contribs}%
-  \fi
-  \let\contribs\@empty
-}
-\let\contribs\@empty  \let\xcontribs\@empty  \let\toccontribs\@empty
-\let\addresses\@empty      \let\thankses\@empty
-\newcommand{\address}[2][]{\g@addto@macro\addresses{\address{#1}{#2}}}
-\newcommand{\curraddr}[2][]{\g@addto@macro\addresses{\curraddr{#1}{#2}}}
-\newcommand{\email}[2][]{\g@addto@macro\addresses{\email{#1}{#2}}}
-\newcommand{\urladdr}[2][]{\g@addto@macro\addresses{\urladdr{#1}{#2}}}
-\long\def\thanks@warning#1{%
-  \ClassError{\@classname}{%
-    \protect\thanks\space should be given separately, not inside author name.%
-  }\@ehb
-}
-\renewcommand{\thanks}[1]{%
-  \@ifnotempty{#1}{\g@addto@macro\thankses{\thanks{#1}}}%
-}
-\def\enddoc@text{\ifx\@empty\@translators \else\@settranslators\fi
-  \ifx\@empty\addresses \else\@setaddresses\fi}
-\AtEndDocument{\enddoc@text}
-\def\curraddrname{{\itshape Current address}}
-\def\emailaddrname{{\itshape E-mail address}}
-\def\urladdrname{{\itshape URL}}
-\def\@setaddresses{\par
-  \nobreak \begingroup
-\footnotesize
-  \def\author##1{\nobreak\addvspace\bigskipamount}%
-  \def\\{\unskip, \ignorespaces}%
-  \interlinepenalty\@M
-  \def\address##1##2{\begingroup
-    \par\addvspace\bigskipamount\indent
-    \@ifnotempty{##1}{(\ignorespaces##1\unskip) }%
-    {\scshape\ignorespaces##2}\par\endgroup}%
-  \def\curraddr##1##2{\begingroup
-    \@ifnotempty{##2}{\nobreak\indent\curraddrname
-      \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space
-      ##2\par}\endgroup}%
-  \def\email##1##2{\begingroup
-    \@ifnotempty{##2}{\nobreak\indent\emailaddrname
-      \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space
-      \ttfamily##2\par}\endgroup}%
-  \def\urladdr##1##2{\begingroup
-    \def~{\char`\~}%
-    \@ifnotempty{##2}{\nobreak\indent\urladdrname
-      \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space
-      \ttfamily##2\par}\endgroup}%
-  \addresses
-  \endgroup
-}
-\let\@date\@empty
-\def\dedicatory#1{\def\@dedicatory{#1}}
-\let\@dedicatory=\@empty
-\def\keywords#1{\def\@keywords{#1}}
-\let\@keywords=\@empty
-\newcommand*\subjclass[2][1991]{%
-  \def\@subjclass{#2}%
-  \@ifundefined{subjclassname@#1}{%
-    \ClassWarning{\@classname}{Unknown edition (#1) of Mathematics
-      Subject Classification; using '1991'.}%
-  }{%
-    \@xp\let\@xp\subjclassname\csname subjclassname@#1\endcsname
-  }%
-}
-\let\@subjclass=\@empty
-\def\commby#1{\def\@commby{(Communicated by #1)}}
-\let\@commby=\@empty
-\def\translname{Translated by}
-\def\translator#1{%
-  \ifx\@empty\@translators \def\@translators{#1}%
-  \else\g@addto@macro\@translators{\and#1}\fi}
-\let\@translators=\@empty
-\def\@settranslators{\par\begingroup
-  \addvspace{6\p@\@plus9\p@}%
-  \hbox to\columnwidth{\hss\normalfont\normalsize
-    \translname{ }%
-    \andify\@translators \uppercasenonmath\@translators
-    \@translators}
-  \endgroup
-}
-\newcommand{\xandlist}[4]{\@andlista{{#1}{#2}{#3}}#4\and\and}
-\def\@andlista#1#2\and#3\and{\@andlistc{#2}\@ifnotempty{#3}{%
-  \@andlistb#1{#3}}}
-\def\@andlistb#1#2#3#4#5\and{%
-  \@ifempty{#5}{%
-    \@andlistc{#2#4}%
-  }{%
-    \@andlistc{#1#4}\@andlistb{#1}{#3}{#3}{#5}%
-  }}
-\let\@andlistc\@iden
-\newcommand{\nxandlist}[4]{%
-  \def\@andlistc##1{\toks@\@xp{\the\toks@##1}}%
-  \toks@{\toks@\@emptytoks \@andlista{{#1}{#2}{#3}}}%
-  \the\@xp\toks@#4\and\and
-  \edef#4{\the\toks@}%
-  \let\@andlistc\@iden}
-\def\@@and{and}
-\newcommand{\andify}{%
-  \nxandlist{\unskip, }{\unskip{} \@@and~}{\unskip, \@@and~}}
-\def\and{\unskip{ }\@@and{ }\ignorespaces}
-\def\maketitle{\par
-  \@topnum\z@ % this prevents figures from falling at the top of page 1
-  \@setcopyright
-  \thispagestyle{firstpage}% this sets first page specifications
-  \uppercasenonmath\shorttitle
-  \ifx\@empty\shortauthors \let\shortauthors\shorttitle
-  \else \andify\shortauthors
-  \fi
-  \@maketitle@hook
-  \begingroup
-  \@maketitle
-  \toks@\@xp{\shortauthors}\@temptokena\@xp{\shorttitle}%
-  \toks4{\def\\{ \ignorespaces}}% defend against questionable usage
-  \edef\@tempa{%
-    \@nx\markboth{\the\toks4
-      \@nx\MakeUppercase{\the\toks@}}{\the\@temptokena}}%
-  \@tempa
-  \endgroup
-  \c@footnote\z@
-  \@cleartopmattertags
-}
-\def\@cleartopmattertags{%
-  \def\do##1{\let##1\relax}%
-  \do\maketitle \do\@maketitle \do\title \do\@xtitle \do\@title
-  \do\author \do\@xauthor \do\address \do\@xaddress
-  \do\contrib \do\contribs \do\xcontribs \do\toccontribs
-  \do\email \do\@xemail \do\curraddr \do\@xcurraddr
-  \do\commby \do\@commby
-  \do\dedicatory \do\@dedicatory \do\thanks \do\thankses
-  \do\keywords \do\@keywords \do\subjclass \do\@subjclass
-}
-\def\@maketitle@hook{\global\let\@maketitle@hook\@empty}
-\def\@maketitle{%
-  \normalfont\normalsize
-  \@adminfootnotes
-  \@mkboth{\@nx\shortauthors}{\@nx\shorttitle}%
-  \global\topskip42\p@\relax % 5.5pc   "   "   "     "     "
-  \@settitle
-  \ifx\@empty\authors \else \@setauthors \fi
-  \ifx\@empty\@dedicatory
-  \else
-    \baselineskip18\p@
-    \vtop{\centering{\footnotesize\itshape\@dedicatory\@@par}%
-      \global\dimen@i\prevdepth}\prevdepth\dimen@i
-  \fi
-  \@setabstract
-  \normalsize
-  \if@titlepage
-    \newpage
-  \else
-    \dimen@34\p@ \advance\dimen@-\baselineskip
-    \vskip\dimen@\relax
-  \fi
-} % end \@maketitle
-\def\@adminfootnotes{%
-  \let\@makefnmark\relax  \let\@thefnmark\relax
-  \ifx\@empty\@date\else \@footnotetext{\@setdate}\fi
-  \ifx\@empty\@subjclass\else \@footnotetext{\@setsubjclass}\fi
-  \ifx\@empty\@keywords\else \@footnotetext{\@setkeywords}\fi
-  \ifx\@empty\thankses\else \@footnotetext{%
-    \def\par{\let\par\@par}\@setthanks}%
-  \fi
-}
-\AtBeginDocument{%
-  \@ifundefined{publname}{%
-    \let\publname\@empty
-    \let\@serieslogo\@empty
-  }{%
-    \def\@serieslogo{\article@logo}%
-  }%
-}
-\AtBeginDocument{%
-  \@ifundefined{volinfo}{%
-    \def\volinfo{%
-      Volume \currentvolume, Number \number0\currentissue
-      \if\@printyear , \currentmonth\ \currentyear\fi
-    }%
-  }{}%
-}
-\def\@printyear{TF}% boolean false
-\def\issueinfo#1#2#3#4{\def\currentvolume{#1}\def\currentissue{#2}%
-  \def\currentmonth{#3}\def\currentyear{#4}}
-\issueinfo{00}% volume number
-  {0}%        % issue number
-  {Xxxx}%     % month
-  {XXXX}%     % year
-\newcommand{\copyrightinfo}[2]{%
-  \def\copyrightyear{#1}%
-  \@ifnotempty{#2}{\def\copyrightholder{#2}}%
-}
-\copyrightinfo{0000}{(copyright holder)}
-\def\pagespan#1#2{\setcounter{page}{#1}%
-  \ifnum\c@page<\z@ \pagenumbering{roman}\setcounter{page}{-#1}\fi
-  \def\start@page{#1}\def\end@page{#2}}
-\pagespan{000}{000}
-\AtBeginDocument{%
-  \@ifundefined{pageinfo}{%
-    \def\pageinfo{%
-      \ifnum\start@page=\z@
-        Pages 000--000
-      \else
-        \ifx\start@page\end@page
-          Page \start@page
-        \else
-          Pages \start@page--\end@page
-        \fi
-      \fi}%
-  }{}%
-}
-\@ifundefined{ISSN}{\def\ISSN{0000-0000}}{}
-\newcommand\PII[1]{\def\@PII{#1}}
-\PII{S \ISSN(XX)0000-0}
-\newinsert\copyins
-\skip\copyins=1.5pc
-\count\copyins=1000 % magnification factor, 1000 = 100%
-\dimen\copyins=.5\textheight % maximum allowed per page
-\g@addto@macro\@reinserts{%
-  \ifvoid\copyins\else\insert\copyins{\unvbox\copyins}\fi
-}
-\def\@copyinsfontsize{\fontsize{6}{7\p@}\normalfont\upshape}
-\newif\if@extracrline  \@extracrlinefalse
-\let\@extracrline\@empty
-\relax
-\def\@setcopyright{%
-  \ifx\@empty\@serieslogo
-  \else\ifx\@empty\copyrightyear
-  \else
-    \insert\copyins{\hsize\textwidth
-      \parfillskip\z@\relax
-      \leftskip\z@\@plus.9\textwidth\relax \rightskip\z@\relax
-      \@copyinsfontsize
-      \everypar{}%
-      \vskip-\skip\copyins
-      \if@extracrline
-        \vskip-6pt
-      \fi
-      \nointerlineskip
-      \leavevmode\hfill\vrule\@width\z@\@height\skip\copyins
-      \copyright\copyrightyear\ \copyrightholder\ignorespaces
-      \if@extracrline \@extracrline \fi
-      \par
-      \kern\z@}%
-  \fi\fi
-}
-\def\@combinefloats{%
-  \ifx \@toplist\@empty \else \@cflt \fi
-  \ifx \@botlist\@empty \else \@cflb \fi
-  \ifvoid\copyins \else \@cflci \fi
-}
-\def\@cflci{%
-  \setbox\@outputbox\vbox{%
-    \unvbox\@outputbox
-    \vskip\skip\copyins
-    \if@twocolumn \else \vskip\z@ plus\p@ \fi
-    \hbox to\columnwidth{%
-      \hss\vbox to\z@{\vss
-        \if@twocolumn
-          \if@firstcolumn \else \unvbox\copyins \fi
-        \else
-          \unvbox\copyins
-        \fi
-        }}}%
-  \if@twocolumn \if@firstcolumn
-    \insert\copyins{\unvbox\copyins}%
-  \fi\fi
-  \global\count\copyins=999 \relax
-}
-\newif\if@revertcopyright  \@revertcopyrightfalse
-\newcommand{\revertcopyright}{%
-  \global\@revertcopyrighttrue
-  \global\@extracrlinetrue}
-\def\@revertcrfontsize{\fontsize{6}{7\p@}\normalfont\upshape}
-\def\@extracrline{%
-  \if@revertcopyright
-    \unskip\\
-    \@revertcrfontsize
-    Reverts to public domain 28 years from publication
-  \fi
-}
-\newcommand{\abstractname}{Abstract}
-\newcommand{\keywordsname}{Key words and phrases}
-\newcommand{\subjclassname}{%
-  \textup{1991} Mathematics Subject Classification}
-\@xp\let\csname subjclassname@1991\endcsname \subjclassname
-\@namedef{subjclassname@2000}{%
-  \textup{2000} Mathematics Subject Classification}
-\def\@tempb{amsart}
-\ifx\@classname\@tempb
-  \newcommand{\datename}{\textit{Date}:}
-\else
-  \newcommand{\datename}{Received by the editors}
-\fi
-\def\@settitle{\begin{center}%
-  \baselineskip14\p@\relax
-    \bfseries
-\uppercasenonmath\@title
-  \@title
-  \end{center}%
-}
-\def\author@andify{%
-  \nxandlist {\unskip ,\penalty-1 \space\ignorespaces}%
-    {\unskip {} \@@and~}%
-    {\unskip ,\penalty-2 \space \@@and~}%
-}
-\def\@setauthors{%
-  \begingroup
-  \def\thanks{\protect\thanks@warning}%
-  \trivlist
-  \centering\footnotesize \@topsep30\p@\relax
-  \advance\@topsep by -\baselineskip
-  \item\relax
-  \author@andify\authors
-  \def\\{\protect\linebreak}%
-  \MakeUppercase{\authors}%
-  \ifx\@empty\contribs
-  \else
-    ,\penalty-3 \space \@setcontribs
-    \@closetoccontribs
-  \fi
-  \endtrivlist
-  \endgroup
-}
-\def\@closetoccontribs{}
-\def\@setcontribs{%
-  \@xcontribs
-  \MakeUppercase{\xcontribs}%
-}
-\def\@setdate{\datename\ \@date\@addpunct.}
-\def\@setsubjclass{%
-  {\itshape\subjclassname.}\enspace\@subjclass\@addpunct.}
-\def\@setkeywords{%
-  {\itshape \keywordsname.}\enspace \@keywords\@addpunct.}
-\def\@setthanks{\def\thanks##1{\par##1\@addpunct.}\thankses}
-\newbox\abstractbox
-\newenvironment{abstract}{%
-  \ifx\maketitle\relax
-    \ClassWarning{\@classname}{Abstract should precede
-      \protect\maketitle\space in AMS document classes; reported}%
-  \fi
-  \global\setbox\abstractbox=\vtop \bgroup
-    \normalfont\Small
-    \list{}{\labelwidth\z@
-      \leftmargin3pc \rightmargin\leftmargin
-      \listparindent\normalparindent \itemindent\z@
-      \parsep\z@ \@plus\p@
-      \let\fullwidthdisplay\relax
-    }%
-    \item[\hskip\labelsep\scshape\abstractname.]%
-}{%
-  \endlist\egroup
-  \ifx\@setabstract\relax \@setabstracta \fi
-}
-\def\@setabstract{\@setabstracta \global\let\@setabstract\relax}
-\def\@setabstracta{%
-  \ifvoid\abstractbox
-  \else
-    \skip@20\p@ \advance\skip@-\lastskip
-    \advance\skip@-\baselineskip \vskip\skip@
-    \box\abstractbox
-    \prevdepth\z@ % because \abstractbox is a vtop
-  \fi
-}
-\def\titlepage{%
-  \clearpage
-  \thispagestyle{empty}\setcounter{page}{0}}
-\def\endtitlepage{\newpage}
-\def\labelenumi{(\theenumi)}
-\def\theenumi{\@arabic\c@enumi}
-\def\labelenumii{(\theenumii)}
-\def\theenumii{\@alph\c@enumii}
-\def\p@enumii{\theenumi}
-\def\labelenumiii{(\theenumiii)}
-\def\theenumiii{\@roman\c@enumiii}
-\def\p@enumiii{\theenumi(\theenumii)}
-\def\labelenumiv{(\theenumiv)}
-\def\theenumiv{\@Alph\c@enumiv}
-\def\p@enumiv{\p@enumiii\theenumiii}
-\def\labelitemi{$\m@th\bullet$}
-\def\labelitemii{\bfseries --}% \upshape already done by \itemize
-\def\labelitemiii{$\m@th\ast$}
-\def\labelitemiv{$\m@th\cdot$}
-\newenvironment{verse}{\let\\\@centercr
-  \list{}{\itemsep\z@ \itemindent -1.5em\listparindent\itemindent
-  \rightmargin\leftmargin \advance\leftmargin 1.5em}\item[]%
-}{%
-  \endlist
-}
-\let\endverse=\endlist % for efficiency
-\newenvironment{quotation}{\list{}{%
-    \leftmargin3pc \listparindent\normalparindent
-    \itemindent\z@
-    \rightmargin\leftmargin \parsep\z@ \@plus\p@}%
-  \item[]%
-}{%
-  \endlist
-}
-\let\endquotation=\endlist % for efficiency
-\newenvironment{quote}{%
-  \list{}{\rightmargin\leftmargin}\item[]%
-}{%
-  \endlist
-}
-\let\endquote=\endlist % for efficiency
-\def\trivlist{\parsep\parskip\@nmbrlistfalse
-  \@trivlist \labelwidth\z@ \leftmargin\z@
-  \itemindent\z@
-  \let\@itemlabel\@empty
-  \def\makelabel##1{\upshape##1}}
-\renewenvironment{enumerate}{%
-  \ifnum \@enumdepth >3 \@toodeep\else
-      \advance\@enumdepth \@ne
-      \edef\@enumctr{enum\romannumeral\the\@enumdepth}\list
-      {\csname label\@enumctr\endcsname}{\usecounter
-        {\@enumctr}\def\makelabel##1{\hss\llap{\upshape##1}}}\fi
-}{%
-  \endlist
-}
-\let\endenumerate=\endlist % for efficiency
-\renewenvironment{itemize}{%
-  \ifnum\@itemdepth>3 \@toodeep
-  \else \advance\@itemdepth\@ne
-    \edef\@itemitem{labelitem\romannumeral\the\@itemdepth}%
-    \list{\csname\@itemitem\endcsname}%
-      {\def\makelabel##1{\hss\llap{\upshape##1}}}%
-  \fi
-}{%
-  \endlist
-}
-\let\enditemize=\endlist % for efficiency
-\newcommand{\descriptionlabel}[1]{\hspace\labelsep \upshape\bfseries #1:}
-\newenvironment{description}{\list{}{%
-  \advance\leftmargini6\p@ \itemindent-12\p@
-  \labelwidth\z@ \let\makelabel\descriptionlabel}%
-}{
-  \endlist
-}
-\let\enddescription=\endlist % for efficiency
-\let\upn=\textup
-\AtBeginDocument{%
-  \labelsep=5pt\relax
-  \setcounter{enumi}{13}\setcounter{enumii}{13}%
-  \setcounter{enumiii}{13}\setcounter{enumiv}{13}%
-  \settowidth\leftmargini{\labelenumi\hskip\labelsep}%
-  \advance\leftmargini by \normalparindent
-  \settowidth\leftmarginii{\labelenumii\hskip\labelsep}%
-  \settowidth\leftmarginiii{\labelenumiii\hskip\labelsep}%
-  \settowidth\leftmarginiv{\labelenumiv\hskip\labelsep}%
-  \setcounter{enumi}{0}\setcounter{enumii}{0}%
-  \setcounter{enumiii}{0}\setcounter{enumiv}{0}%
-  \leftmarginv=10pt  \leftmarginvi=\leftmarginv
-  \leftmargin=\leftmargini
-  \labelwidth=\leftmargini \advance\labelwidth-\labelsep
-  \@listi}
-\newskip\listisep
-\listisep\smallskipamount
-\def\@listI{\leftmargin\leftmargini \parsep\z@skip
-  \topsep\listisep \itemsep\z@skip
-  \listparindent\normalparindent}
-\let\@listi\@listI
-\def\@listii{\leftmargin\leftmarginii
-  \labelwidth\leftmarginii \advance\labelwidth-\labelsep
-  \topsep\z@skip \parsep\z@skip \partopsep\z@skip \itemsep\z@skip}
-\def\@listiii{\leftmargin\leftmarginiii
-  \labelwidth\leftmarginiii \advance\labelwidth-\labelsep}
-\def\@listiv{\leftmargin\leftmarginiv
-  \labelwidth\leftmarginiv \advance\labelwidth-\labelsep}
-\def\@listv{\leftmargin\leftmarginv
-  \labelwidth\leftmarginv \advance\labelwidth-\labelsep}
-\def\@listvi{\leftmargin\leftmarginvi
-  \labelwidth\leftmarginvi \advance\labelwidth-\labelsep}
-\@ifclasswith{\@classname}{fleqn}{%
-  \let\@tempa\@iden
-  \AtBeginDocument{\mathindent\leftmargini}%
-}{\let\@tempa\@gobble}%
-\@ifpackageloaded{amsmath}{\let\@tempa\@gobble}{%
-  \@ifpackageloaded{amstex}{\let\@tempa\@gobble}{}%
-}
-\@tempa{%
-  \def\[{\relax
-    \ifmmode\@badmath
-    \else
-      \begin{trivlist}%
-      \@beginparpenalty\predisplaypenalty
-      \@endparpenalty\postdisplaypenalty
-      \item[]\leavevmode
-      \hbox to\linewidth\bgroup$\displaystyle
-      \hskip\mathindent\bgroup
-    \fi}%
-  \def\]{\relax
-    \ifmmode
-      \egroup \m@th$\hfil \egroup
-      \end{trivlist}%
-    \else \@badmath
-    \fi}%
-  \renewenvironment{equation}{%
-    \@beginparpenalty\predisplaypenalty
-    \@endparpenalty\postdisplaypenalty
-    \refstepcounter{equation}%
-    \@topsep\abovedisplayskip \trivlist
-    \item[]\leavevmode
-    \hbox to\linewidth\bgroup\hskip\mathindent$\displaystyle
-  }{%
-    \m@th$\hfil \displaywidth\linewidth \hbox{\@eqnnum}\egroup
-    \endtrivlist
-  }%
-  \renewenvironment{eqnarray}{%
-    \stepcounter{equation}\let\@currentlabel\theequation
-    \global\@eqnswtrue \global\@eqcnt\z@ \tabskip\mathindent
-    \let\\=\@eqncr \abovedisplayskip\topsep
-    \ifvmode \advance\abovedisplayskip\partopsep \fi
-    \belowdisplayskip\abovedisplayskip
-    \belowdisplayshortskip\abovedisplayskip
-    \abovedisplayshortskip\abovedisplayskip
-    $$\everycr{}\halign to\linewidth\bgroup
-      \hskip\@centering
-      $\displaystyle\tabskip\z@skip####\m@th$&%
-      \@eqnsel \global\@eqcnt\@ne
-      \hfil${}####{}\m@th$\hfil&%
-      \global\@eqcnt\tw@
-      $\displaystyle ####\m@th$\hfil\tabskip\@centering&%
-      \global\@eqcnt\thr@@
-      \hbox to \z@\bgroup\hss####\egroup\tabskip\z@skip\cr
-    }{%
-      \@@eqncr \egroup \global\advance\c@equation\m@ne$$%
-      \global\@ignoretrue
-    }%
-  \newdimen\mathindent
-  \mathindent\leftmargini
-}
-\def\@startsection#1#2#3#4#5#6{%
- \if@noskipsec \leavevmode \fi
- \par \@tempskipa #4\relax
- \@afterindenttrue
- \ifdim \@tempskipa <\z@ \@tempskipa -\@tempskipa \@afterindentfalse\fi
- \if@nobreak \everypar{}\else
-     \addpenalty\@secpenalty\addvspace\@tempskipa\fi
- \@ifstar{\@dblarg{\@sect{#1}{\@m}{#3}{#4}{#5}{#6}}}%
-         {\@dblarg{\@sect{#1}{#2}{#3}{#4}{#5}{#6}}}%
-}
-\def\@seccntformat#1{%
-  \protect\textup{\protect\@secnumfont
-    \csname the#1\endcsname
-    \protect\@secnumpunct
-  }%
-}
-\def\@secnumfont{\mdseries}
-\def\@sect#1#2#3#4#5#6[#7]#8{%
-  \edef\@toclevel{\ifnum#2=\@m 0\else\number#2\fi}%
-  \ifnum #2>\c@secnumdepth \let\@secnumber\@empty
-  \else \@xp\let\@xp\@secnumber\csname the#1\endcsname\fi
-  \@tempskipa #5\relax
-  \ifnum #2>\c@secnumdepth
-    \let\@svsec\@empty
-  \else
-    \refstepcounter{#1}%
-    \edef\@secnumpunct{%
-      \ifdim\@tempskipa>\z@ % not a run-in section heading
-        \@ifnotempty{#8}{.\@nx\enspace}%
-      \else
-        \@ifempty{#8}{.}{.\@nx\enspace}%
-      \fi
-    }%
-    \@ifempty{#8}{%
-      \ifnum #2=\tw@ \def\@secnumfont{\bfseries}\fi}{}%
-    \protected@edef\@svsec{%
-      \ifnum#2<\@m
-        \@ifundefined{#1name}{}{%
-          \ignorespaces\csname #1name\endcsname\space
-        }%
-      \fi
-      \@seccntformat{#1}%
-    }%
-  \fi
-  \ifdim \@tempskipa>\z@ % then this is not a run-in section heading
-    \begingroup #6\relax
-    \@hangfrom{\hskip #3\relax\@svsec}{\interlinepenalty\@M #8\par}%
-    \endgroup
-    \ifnum#2>\@m \else \@tocwrite{#1}{#8}\fi
-  \else
-  \def\@svsechd{#6\hskip #3\@svsec
-    \@ifnotempty{#8}{\ignorespaces#8\unskip
-       \@addpunct.}%
-    \ifnum#2>\@m \else \@tocwrite{#1}{#8}\fi
-  }%
-  \fi
-  \global\@nobreaktrue
-  \@xsect{#5}}
-\let\@ssect\relax
-\newcounter{part}
-\newcounter{section}
-\newcounter{subsection}[section]
-\newcounter{subsubsection}[subsection]
-\newcounter{paragraph}[subsubsection]
-\newcounter{subparagraph}[paragraph]
-\renewcommand\thepart          {\arabic{part}}
-\renewcommand\thesection       {\arabic{section}}
-\renewcommand\thesubsection    {\thesection.\arabic{subsection}}
-\renewcommand\thesubsubsection {\thesubsection .\arabic{subsubsection}}
-\renewcommand\theparagraph     {\thesubsubsection.\arabic{paragraph}}
-\renewcommand\thesubparagraph  {\theparagraph.\arabic{subparagraph}}
-\setcounter{secnumdepth}{3}
-\def\partname{Part}
-\def\part{\@startsection{part}{0}%
-  \z@{\linespacing\@plus\linespacing}{.5\linespacing}%
-  {\normalfont\bfseries\raggedright}}
-\def\specialsection{\@startsection{section}{1}%
-  \z@{\linespacing\@plus\linespacing}{.5\linespacing}%
-  {\normalfont\centering}}
-\def\section{\@startsection{section}{1}%
-  \z@{.7\linespacing\@plus\linespacing}{.5\linespacing}%
-  {\normalfont\scshape\centering}}
-\def\subsection{\@startsection{subsection}{2}%
-  \z@{.5\linespacing\@plus.7\linespacing}{-.5em}%
-  {\normalfont\bfseries}}
-\def\subsubsection{\@startsection{subsubsection}{3}%
-  \z@{.5\linespacing\@plus.7\linespacing}{-.5em}%
-  {\normalfont\itshape}}
-\def\paragraph{\@startsection{paragraph}{4}%
-  \z@\z@{-\fontdimen2\font}%
-  \normalfont}
-\def\subparagraph{\@startsection{subparagraph}{5}%
-  \z@\z@{-\fontdimen2\font}%
-  \normalfont}
-\def\appendix{\par\c@section\z@ \c@subsection\z@
-   \let\sectionname\appendixname
-   \def\thesection{\@Alph\c@section}}
-\def\appendixname{Appendix}
-\def\@Roman#1{\@xp\@slowromancap
-  \romannumeral#1@}%
-\def\@slowromancap#1{\ifx @#1% then terminate
-  \else
-    \if i#1I\else\if v#1V\else\if x#1X\else\if l#1L\else\if
-    c#1C\else\if m#1M\else#1\fi\fi\fi\fi\fi\fi
-    \@xp\@slowromancap
-  \fi
-}
-\newcommand{\@pnumwidth}{1.6em}
-\newcommand{\@tocrmarg}{2.6em}
-\setcounter{tocdepth}{2}
-\newswitch{toc}
-\newswitch{lof}
-\newswitch{lot}
-\newcommand\contentsnamefont{\scshape}
-\def\@starttoc#1#2{\begingroup
-  \setTrue{#1}%
-  \par\removelastskip\vskip\z@skip
-  \@startsection{}\@M\z@{\linespacing\@plus\linespacing}%
-    {.5\linespacing}{\centering\contentsnamefont}{#2}%
-  \ifx\contentsname#2%
-  \else \addcontentsline{toc}{section}{#2}\fi
-  \makeatletter
-  \@input{\jobname.#1}%
-  \if@filesw
-    \@xp\newwrite\csname tf@#1\endcsname
-    \immediate\@xp\openout\csname tf@#1\endcsname \jobname.#1\relax
-  \fi
-  \global\@nobreakfalse \endgroup
-  \addvspace{32\p@\@plus14\p@}%
-  \let\tableofcontents\relax
-}
-\def\contentsname{Contents}
-\def\listfigurename{List of Figures}
-\def\listtablename{List of Tables}
-\def\tableofcontents{%
-  \@starttoc{toc}\contentsname
-}
-\def\listoffigures{\@starttoc{lof}\listfigurename}
-\def\listoftables{\@starttoc{lot}\listtablename}
-\AtBeginDocument{%
-  \@for\@tempa:=-1,0,1,2,3\do{%
-    \@ifundefined{r@tocindent\@tempa}{%
-      \@xp\gdef\csname r@tocindent\@tempa\endcsname{0pt}}{}%
-  }%
-}
-\def\@writetocindents{%
-  \begingroup
-  \@for\@tempa:=-1,0,1,2,3\do{%
-    \immediate\write\@auxout{%
-      \string\newlabel{tocindent\@tempa}{%
-        \csname r@tocindent\@tempa\endcsname}}%
-  }%
-  \endgroup}
-\AtEndDocument{\@writetocindents}
-
-\let\indentlabel\@empty
-\def\@tochangmeasure#1{\sbox\z@{#1}%
-  \ifdim\wd\z@>\csname r@tocindent\@toclevel\endcsname\relax
-    \@xp\xdef\csname r@tocindent\@toclevel\endcsname{\the\wd\z@}%
-  \fi
-}
-\def\@toclevel{0}
-\def\@tocline#1#2#3#4#5#6#7{\relax
-  \ifnum #1>\c@tocdepth % then omit
-  \else
-    \par \addpenalty\@secpenalty\addvspace{#2}%
-    \begingroup \hyphenpenalty\@M
-    \@ifempty{#4}{%
-      \@tempdima\csname r@tocindent\number#1\endcsname\relax
-    }{%
-      \@tempdima#4\relax
-    }%
-    \parindent\z@ \leftskip#3\relax \advance\leftskip\@tempdima\relax
-    \rightskip\@pnumwidth plus4em \parfillskip-\@pnumwidth
-    #5\leavevmode\hskip-\@tempdima #6\nobreak\relax
-    \hfil\hbox to\@pnumwidth{\@tocpagenum{#7}}\par
-    \nobreak
-    \endgroup
-  \fi}
-\def\@tocpagenum#1{\hss{\mdseries #1}}
-\def\@tocwrite#1{\@xp\@tocwriteb\csname toc#1\endcsname{#1}}
-\def\@tocwriteb#1#2#3{%
-  \begingroup
-    \def\@tocline##1##2##3##4##5##6{%
-      \ifnum##1>\c@tocdepth
-      \else \sbox\z@{##5\let\indentlabel\@tochangmeasure##6}\fi}%
-    \csname l@#2\endcsname{#1{\csname#2name\endcsname}{\@secnumber}{}}%
-  \endgroup
-  \addcontentsline{toc}{#2}%
-    {\protect#1{\csname#2name\endcsname}{\@secnumber}{#3}}}
-\def\l@section{\@tocline{1}{0pt}{1pc}{}{}}
-\newcommand{\tocsection}[3]{%
-  \indentlabel{\@ifnotempty{#2}{\ignorespaces#1 #2.\quad}}#3}
-\def\l@subsection{\@tocline{2}{0pt}{1pc}{5pc}{}}
-\let\tocsubsection\tocsection
-\def\l@subsubsection{\@tocline{3}{0pt}{1pc}{7pc}{}}
-\let\tocsubsubsection\tocsection
-\let\l@paragraph\l@subsubsection
-\let\tocparagraph\tocsection
-\let\l@subparagraph\l@subsubsection
-\let\tocsubparagraph\tocsection
-\def\l@part{\@tocline{-1}{12pt plus2pt}{0pt}{}{\bfseries}}
-\let\tocpart\tocsection
-\def\l@chapter{\@tocline{0}{8pt plus1pt}{0pt}{}{}}
-\let\tocchapter\tocsection
-\newcommand{\tocappendix}[3]{%
-  \indentlabel{#1\@ifnotempty{#2}{ #2}.\quad}#3}
-\def\l@figure{\@tocline{0}{3pt plus2pt}{0pt}{1.5pc}{}}
-\let\l@table=\l@figure
-\def\refname{References}
-\def\bibname{Bibliography}
-\def\@defaultbiblabelstyle#1{#1.}
-\def\bibliographystyle#1{%
-    \if@filesw\immediate\write\@auxout{\string\bibstyle{#1}}\fi
-    \def\@tempa{#1}%
-    \def\@tempb{amsplain}%
-    \def\@tempc{}%
-    \ifx\@tempa\@tempb
-        \def\@biblabel##1{\@defaultbiblabelstyle{##1}}%
-        \def\bibsetup{}%
-    \else
-        \def\bibsetup{\labelsep6\p@}%
-        \ifx\@tempa\@tempc
-            \def\@biblabel##1{}%
-            \def\bibsetup{\labelwidth\z@ \leftmargin24\p@
-                \itemindent-\leftmargin
-                \labelsep\z@ }%
-        \fi
-    \fi}
-\newcommand{\bibliofont}{\footnotesize}
-\newcommand{\@bibtitlestyle}{%
-  \@xp\section\@xp*\@xp{\refname}%
-}
-\newenvironment{thebibliography}[1]{%
-  \@bibtitlestyle
-  \normalfont\bibliofont\labelsep .5em\relax
-  \renewcommand\theenumiv{\arabic{enumiv}}\let\p@enumiv\@empty
-  \list{\@biblabel{\theenumiv}}{\settowidth\labelwidth{\@biblabel{#1}}%
-    \leftmargin\labelwidth \advance\leftmargin\labelsep
-    \usecounter{enumiv}}%
-  \sloppy \clubpenalty\@M \widowpenalty\clubpenalty
-  \sfcode`\.=\@m
-}{%
-  \def\@noitemerr{\@latex@warning{Empty `thebibliography' environment}}%
-  \endlist
-}
-\def\bysame{\leavevmode\hbox to3em{\hrulefill}\thinspace}
-\def\newblock{}
-\newcommand\MR[1]{\relax\ifhmode\unskip\spacefactor3000 \space\fi
-  MR~\MRhref{#1}{#1}}
-\let\MRhref\@gobble
-\newcommand\URL{\begingroup
-  \def\@sverb##1{%
-    \def\@tempa####1##1{\@URL{####1}\egroup\endgroup}%
-    \@tempa}%
-  \verb}
-\let\URLhref\@gobble
-\def\@URL#1{\URLhref{#1}#1}
-\newif\if@restonecol
-\newcommand{\@indextitlestyle}{%
-  \twocolumn[\@xp\section\@xp*\@xp{\indexname}]%
-}
-\def\theindex{\@restonecoltrue\if@twocolumn\@restonecolfalse\fi
-  \columnseprule\z@ \columnsep 35\p@
-  \@indextitlestyle
-  \thispagestyle{plain}%
-  \let\item\@idxitem
-  \parindent\z@  \parskip\z@\@plus.3\p@\relax
-  \raggedright
-  \hyphenpenalty\@M
-  \footnotesize}
-\def\indexname{Index}
-\def\@idxitem{\par\hangindent 2em}
-\def\subitem{\par\hangindent 2em\hspace*{1em}}
-\def\subsubitem{\par\hangindent 3em\hspace*{2em}}
-\def\endtheindex{\if@restonecol\onecolumn\else\clearpage\fi}
-\def\indexspace{\par\bigskip}
-\def\footnoterule{\kern-.4\p@
-        \hrule\@width 5pc\kern11\p@\kern-\footnotesep}
-\def\@makefnmark{%
-  \leavevmode
-  \raise.9ex\hbox{\fontsize\sf@size\z@\normalfont\@thefnmark}%
-}
-\def\@makefntext{\indent\@makefnmark}
-\long\def\@footnotetext#1{%
-  \insert\footins{%
-    \normalfont\footnotesize
-    \interlinepenalty\interfootnotelinepenalty
-    \splittopskip\footnotesep \splitmaxdepth \dp\strutbox
-    \floatingpenalty\@MM \hsize\columnwidth
-    \@parboxrestore \parindent\normalparindent \sloppy
-    \protected@edef\@currentlabel{%
-      \csname p@footnote\endcsname\@thefnmark}%
-    \@makefntext{%
-      \rule\z@\footnotesep\ignorespaces#1\unskip\strut\par}}}
-\hfuzz=1pt \vfuzz=\hfuzz
-\def\sloppy{\tolerance9999 \emergencystretch 3em\relax}
-\setcounter{topnumber}{4}
-\setcounter{bottomnumber}{4}
-\setcounter{totalnumber}{4}
-\setcounter{dbltopnumber}{4}
-\renewcommand{\topfraction}{.97}
-\renewcommand{\bottomfraction}{.97}
-\renewcommand{\textfraction}{.03}
-\renewcommand{\floatpagefraction}{.9}
-\renewcommand{\dbltopfraction}{.97}
-\renewcommand{\dblfloatpagefraction}{.9}
-\setlength{\floatsep}{12pt plus 6pt minus 4pt}
-\setlength{\textfloatsep}{15pt plus 8pt minus 5pt}
-\setlength{\intextsep}{12pt plus 6pt minus 4pt}
-\setlength{\dblfloatsep}{12pt plus 6pt minus 4pt}
-\setlength{\dbltextfloatsep}{15pt plus 8pt minus 5pt}
-\setlength{\@fptop}{0pt}% removed "plus 1fil"
-\setlength{\@fpsep}{8pt}% removed "plus 2fil"
-\setlength{\@fpbot}{0pt plus 1fil}
-\setlength{\@dblfptop}{0pt}% removed "plus 1fil"
-\setlength{\@dblfpsep}{8pt}% removed "plus 2fil"
-\setlength{\@dblfpbot}{0pt plus 1fil}
-\newcommand{\fps@figure}{tbp}
-\newcommand{\fps@table}{tbp}
-\newcounter{figure}
-\def\@captionheadfont{\scshape}
-\def\@captionfont{\normalfont}
-\def\ftype@figure{1}
-\def\ext@figure{lof}
-\def\fnum@figure{\figurename\ \thefigure}
-\def\figurename{Figure}
-\newenvironment{figure}{%
-  \@float{figure}%
-}{%
-  \end@float
-}
-\newenvironment{figure*}{%
-  \@dblfloat{figure}%
-}{%
-  \end@dblfloat
-}
-\newcounter{table}
-\def\ftype@table{2}
-\def\ext@table{lot}
-\def\fnum@table{\tablename\ \thetable}
-\def\tablename{Table}
-\newenvironment{table}{%
-  \@float{table}%
-}{%
-  \end@float
-}
-\newenvironment{table*}{%
-  \@dblfloat{table}%
-}{%
-  \end@dblfloat
-}
-\def\@floatboxreset{\global\@minipagefalse \centering}
-\long\def\@makecaption#1#2{%
-  \setbox\@tempboxa\vbox{\color@setgroup
-    \advance\hsize-2\captionindent\noindent
-    \@captionfont\@captionheadfont#1\@xp\@ifnotempty\@xp
-        {\@cdr#2\@nil}{.\@captionfont\upshape\enspace#2}%
-    \unskip\kern-2\captionindent\par
-    \global\setbox\@ne\lastbox\color@endgroup}%
-  \ifhbox\@ne % the normal case
-    \setbox\@ne\hbox{\unhbox\@ne\unskip\unskip\unpenalty\unkern}%
-  \fi
-  \ifdim\wd\@tempboxa=\z@ % this means caption will fit on one line
-    \setbox\@ne\hbox to\columnwidth{\hss\kern-2\captionindent\box\@ne\hss}%
-  \else % tempboxa contained more than one line
-    \setbox\@ne\vbox{\unvbox\@tempboxa\parskip\z@skip
-        \noindent\unhbox\@ne\advance\hsize-2\captionindent\par}%
-  \fi
-  \ifnum\@tempcnta<64 % if the float IS a figure...
-    \addvspace\abovecaptionskip
-    \hbox to\hsize{\kern\captionindent\box\@ne\hss}%
-  \else % if the float IS NOT a figure...
-    \hbox to\hsize{\kern\captionindent\box\@ne\hss}%
-    \nobreak
-    \vskip\belowcaptionskip
-  \fi
-\relax
-}
-\newskip\abovecaptionskip \abovecaptionskip=12pt \relax
-\newskip\belowcaptionskip \belowcaptionskip=12pt \relax
-\newdimen\captionindent \captionindent=3pc
-\def\nonbreakingspace{\unskip\nobreak\ \ignorespaces}
-\def~{\protect\nonbreakingspace}
-\def\@biblabel#1{\@ifnotempty{#1}{[#1]}}
-\def\@citestyle{\m@th\upshape\mdseries}
-\let\citeform\@firstofone
-\def\@cite#1#2{{%
-  \@citestyle[\citeform{#1}\if@tempswa, #2\fi]}}
-\@ifundefined{cite }{%
-  \expandafter\let\csname cite \endcsname\cite
-  \edef\cite{\@nx\protect\@xp\@nx\csname cite \endcsname}%
-}{}
-\def\fullwidthdisplay{\displayindent\z@ \displaywidth\columnwidth}
-\edef\@tempa{\noexpand\fullwidthdisplay\the\everydisplay}
-\everydisplay\expandafter{\@tempa}
-\newcommand*\seeonlyname{see}
-\newcommand*\seename{see also}
-\newcommand*\alsoname{see also}
-\newcommand*\seeonly[2]{\emph{\seeonlyname} #1}
-\newcommand*\see[2]{\emph{\seename} #1}
-\newcommand*\seealso[2]{\emph{\alsoname} #1}
-\newcommand\printindex{\@input{\jobname.ind}}
-\DeclareRobustCommand\textprime{\leavevmode
-  \raise.8ex\hbox{\check@mathfonts\the\scriptfont2 \char48 }}
-
-\newcommand{\theoremstyle}[1]{%
-  \@ifundefined{th@#1}{%
-    \PackageWarning{amsthm}{Unknown theoremstyle `#1'}%
-    \thm@style{plain}%
-  }{%
-    \thm@style{#1}%
-  }%
-}
-\newtoks\thm@style
-\thm@style{plain}
-\newtoks\thm@bodyfont  \thm@bodyfont{\itshape}
-\newtoks\thm@headfont  \thm@headfont{\bfseries}
-\newtoks\thm@notefont  \thm@notefont{}
-\newtoks\thm@headpunct \thm@headpunct{.}
-\newskip\thm@preskip \newskip\thm@postskip
-\def\thm@space@setup{%
-  \thm@preskip=.5\baselineskip\@plus.2\baselineskip
-                             \@minus.2\baselineskip
-  \thm@postskip=\thm@preskip
-}
-\renewcommand{\newtheorem}{\@ifstar{\@xnthm *}{\@xnthm \relax}}
-\def\@xnthm#1#2{%
-  \let\@tempa\relax
-  \@xp\@ifdefinable\csname #2\endcsname{%
-    \global\@xp\let\csname end#2\endcsname\@endtheorem
-    \ifx *#1% unnumbered, need to get one more mandatory arg
-      \edef\@tempa##1{%
-        \gdef\@xp\@nx\csname#2\endcsname{%
-          \@nx\@thm{\@xp\@nx\csname th@\the\thm@style\endcsname}%
-            {}{##1}}}%
-    \else % numbered theorem, need to check for optional arg
-      \def\@tempa{\@oparg{\@ynthm{#2}}[]}%
-    \fi
-  }%
-  \@tempa
-}
-\def\@ynthm#1[#2]#3{%
-  \ifx\relax#2\relax
-    \def\@tempa{\@oparg{\@xthm{#1}{#3}}[]}%
-  \else
-    \@ifundefined{c@#2}{%
-      \def\@tempa{\@nocounterr{#2}}%
-    }{%
-      \@xp\xdef\csname the#1\endcsname{\@xp\@nx\csname the#2\endcsname}%
-      \toks@{#3}%
-      \@xp\xdef\csname#1\endcsname{%
-        \@nx\@thm{%
-          \let\@nx\thm@swap
-            \if S\thm@swap\@nx\@firstoftwo\else\@nx\@gobble\fi
-          \@xp\@nx\csname th@\the\thm@style\endcsname}%
-            {#2}{\the\toks@}}%
-      \let\@tempa\relax
-    }%
-  \fi
-  \@tempa
-}
-\def\@xthm#1#2[#3]{%
-  \ifx\relax#3\relax
-    \newcounter{#1}%
-  \else
-    \newcounter{#1}[#3]%
-    \@xp\xdef\csname the#1\endcsname{\@xp\@nx\csname the#3\endcsname
-      \@thmcountersep\@thmcounter{#1}}%
-  \fi
-  \toks@{#2}%
-  \@xp\xdef\csname#1\endcsname{%
-    \@nx\@thm{%
-      \let\@nx\thm@swap
-        \if S\thm@swap\@nx\@firstoftwo\else\@nx\@gobble\fi
-      \@xp\@nx\csname th@\the\thm@style\endcsname}%
-      {#1}{\the\toks@}}%
-}
-\def\@thm#1#2#3{%
-  \ifhmode\unskip\unskip\par\fi
-  \normalfont
-  \trivlist
-  \let\thmheadnl\relax
-  \let\thm@swap\@gobble
-  \let\thm@indent\noindent % no indent
-  \thm@headfont{\bfseries}% heading font bold
-  \thm@notefont{\fontseries\mddefault\upshape}%
-  \thm@headpunct{.}% add period after heading
-  \thm@headsep 5\p@ plus\p@ minus\p@\relax
-  \thm@space@setup
-  #1% style overrides
-  \@topsep \thm@preskip               % used by thm head
-  \@topsepadd \thm@postskip           % used by \@endparenv
-  \def\@tempa{#2}\ifx\@empty\@tempa
-    \def\@tempa{\@oparg{\@begintheorem{#3}{}}[]}%
-  \else
-    \refstepcounter{#2}%
-    \def\@tempa{\@oparg{\@begintheorem{#3}{\csname the#2\endcsname}}[]}%
-  \fi
-  \@tempa
-}
-\def\@restorelabelsep{\relax}
-\let\@ythm\relax
-\let\thmname\@iden \let\thmnote\@iden \let\thmnumber\@iden
-\providecommand\@upn{\textup}
-\def\thmhead@plain#1#2#3{%
-  \thmname{#1}\thmnumber{\@ifnotempty{#1}{ }\@upn{#2}}%
-  \thmnote{ {\the\thm@notefont(#3)}}}
-\let\thmhead\thmhead@plain
-\def\swappedhead#1#2#3{%
-  \thmnumber{\@upn{\@secnumfont#2\@ifnotempty{#1}{.~}}}%
-  \thmname{#1}%
-  \thmnote{ {\the\thm@notefont(#3)}}}
-\let\swappedhead@plain=\swappedhead
-\let\thmheadnl\relax
-\let\thm@indent\noindent
-\let\thm@swap\@gobble
-\def\@begintheorem#1#2[#3]{%
-  \deferred@thm@head{\the\thm@headfont \thm@indent
-    \@ifempty{#1}{\let\thmname\@gobble}{\let\thmname\@iden}%
-    \@ifempty{#2}{\let\thmnumber\@gobble}{\let\thmnumber\@iden}%
-    \@ifempty{#3}{\let\thmnote\@gobble}{\let\thmnote\@iden}%
-    \thm@swap\swappedhead\thmhead{#1}{#2}{#3}%
-    \the\thm@headpunct
-    \thmheadnl % possibly a newline.
-    \hskip\thm@headsep
-  }%
-  \ignorespaces}
-\newskip\thm@headsep
-\thm@headsep=5pt plus1pt minus1pt\relax
-\let\adjust@parskip@nobreak=\@nbitem
-\newtoks\dth@everypar
-\dth@everypar={%
-  \@minipagefalse \global\@newlistfalse
-  \@noparitemfalse
-  \if@inlabel
-    \global\@inlabelfalse
-    \begingroup \setbox\z@\lastbox
-     \ifvoid\z@ \kern-\itemindent \fi
-    \endgroup
-    \unhbox\@labels
-  \fi
-  \if@nobreak \@nobreakfalse \clubpenalty\@M
-  \else \clubpenalty\@clubpenalty \everypar{}%
-  \fi
-}%
-\def\deferred@thm@head#1{%
-  \if@inlabel \indent \par \fi % eject a section head if one is pending
-  \if@nobreak
-    \adjust@parskip@nobreak
-  \else
-    \addpenalty\@beginparpenalty
-    \addvspace\@topsep
-    \addvspace{-\parskip}%
-  \fi
-  \global\@inlabeltrue
-  \everypar\dth@everypar
-  \sbox\@labels{\normalfont#1}%
-  \ignorespaces
-}
-\def\nonslanted{\relax
-  \@xp\let\@xp\@tempa\csname\f@shape shape\endcsname
-  \ifx\@tempa\itshape\upshape
-  \else\ifx\@tempa\slshape\upshape\fi\fi}
-\def\swapnumbers{\edef\thm@swap{\if S\thm@swap N\else S\fi}}
-\def\thm@swap{N}%
-\let\@opargbegintheorem\relax
-\def\th@plain{%
-%%  \let\thm@indent\noindent % no indent
-%%  \thm@headfont{\bfseries}% heading font is bold
-%%  \thm@notefont{}% same as heading font
-%%  \thm@headpunct{.}% add period after heading
-%%  \let\thm@swap\@gobble
-%%  \thm@preskip\topsep
-%%  \thm@postskip\theorempreskipamount
-  \itshape % body font
-}
-\def\th@definition{%
-  \normalfont % body font
-}
-\def\th@remark{%
-  \thm@headfont{\itshape}%
-  \normalfont % body font
-}
-\def\@endtheorem{\endtrivlist\@endpefalse }
-\newcommand{\newtheoremstyle}[9]{%
-  \@ifempty{#5}{\dimen@\z@skip}{\dimen@#5\relax}%
-  \ifdim\dimen@=\z@
-    \toks@{#4\let\thm@indent\noindent}%
-  \else
-    \toks@{#4\def\thm@indent{\noindent\hbox to#5{}}}%
-  \fi
-  \def\@tempa{#8}\ifx\space\@tempa
-    \toks@\@xp{\the\toks@ \thm@headsep\fontdimen\tw@\font\relax}%
-  \else
-    \def\@tempb{\newline}%
-    \ifx\@tempb\@tempa
-      \toks@\@xp{\the\toks@ \thm@headsep\z@skip
-        \def\thmheadnl{\newline}}%
-    \else
-      \toks@\@xp{\the\toks@ \thm@headsep#8\relax}%
-    \fi
-  \fi
-  \begingroup
-  \thm@space@setup
-  \@defaultunits\@tempskipa#2\thm@preskip\relax\@nnil
-  \@defaultunits\@tempskipb#3\thm@postskip\relax\@nnil
-  \xdef\@gtempa{\thm@preskip\the\@tempskipa
-    \thm@postskip\the\@tempskipb\relax}%
-  \endgroup
-  \@temptokena\@xp{\@gtempa
-    \thm@headfont{#6}\thm@headpunct{#7}%
-  }%
-  \@ifempty{#9}{%
-    \let\thmhead\thmhead@plain
-  }{%
-    \@namedef{thmhead@#1}##1##2##3{#9}%
-    \@temptokena\@xp{\the\@temptokena
-      \@xp\let\@xp\thmhead\csname thmhead@#1\endcsname}%
-  }%
-  \@xp\xdef\csname th@#1\endcsname{\the\toks@ \the\@temptokena}%
-}
-\DeclareRobustCommand{\qed}{%
-  \ifmmode \mathqed
-  \else
-    \leavevmode\unskip\penalty9999 \hbox{}\nobreak\hfill
-    \quad\hbox{\qedsymbol}%
-  \fi
-}
-\let\QED@stack\@empty
-\let\qed@elt\relax
-\newcommand{\pushQED}[1]{%
-  \toks@{\qed@elt{#1}}\@temptokena\expandafter{\QED@stack}%
-  \xdef\QED@stack{\the\toks@\the\@temptokena}%
-}
-\newcommand{\popQED}{%
-  \begingroup\let\qed@elt\popQED@elt \QED@stack\relax\relax\endgroup
-}
-\def\popQED@elt#1#2\relax{#1\gdef\QED@stack{#2}}
-\newcommand{\qedhere}{%
-  \begingroup \let\mathqed\math@qedhere
-    \let\qed@elt\setQED@elt \QED@stack\relax\relax \endgroup
-}
-\newif\ifmeasuring@
-\newif\iffirstchoice@ \firstchoice@true
-\def\setQED@elt#1#2\relax{%
-  \ifmeasuring@
-  \else \iffirstchoice@ \gdef\QED@stack{\qed@elt{}#2}\fi
-  \fi
-  #1%
-}
-\def\qed@warning{%
-  \PackageWarning{amsthm}{The \@nx\qedhere command may not work
-    correctly here}%
-}
-\newcommand{\mathqed}{\quad\hbox{\qedsymbol}}
-\def\linebox@qed{\hfil\hbox{\qedsymbol}\hfilneg}
-\@ifpackageloaded{amsmath}{%
-  \def\math@qedhere{%
-    \@ifundefined{\@currenvir @qed}{%
-      \qed@warning\quad\hbox{\qedsymbol}%
-    }{%
-      \@xp\aftergroup\csname\@currenvir @qed\endcsname
-    }%
-  }
-  \def\displaymath@qed{%
-    \relax
-    \ifmmode
-      \ifinner \aftergroup\linebox@qed
-      \else
-        \eqno
-        \let\eqno\relax \let\leqno\relax \let\veqno\relax
-        \hbox{\qedsymbol}%
-      \fi
-    \else
-       \aftergroup\linebox@qed
-    \fi
-  }
-  \@xp\let\csname equation*@qed\endcsname\displaymath@qed
-  \def\equation@qed{%
-    \iftagsleft@
-      \hbox{\phantom{\quad\qedsymbol}}%
-      \gdef\alt@tag{%
-        \rlap{\hbox to\displaywidth{\hfil\qedsymbol}}%
-        \global\let\alt@tag\@empty
-      }%
-    \else
-      \gdef\alt@tag{%
-        \global\let\alt@tag\@empty
-        \vtop{\ialign{\hfil####\cr
-                \tagform@\theequation\cr
-                \qedsymbol\cr}}%
-        \setbox\z@
-      }%
-    \fi
-  }
-  \def\qed@tag{%
-    \global\tag@true \nonumber
-    &\omit\setboxz@h {\strut@ \qedsymbol}\tagsleft@false
-    \place@tag@gather
-    \kern-\tabskip
-    \ifst@rred \else \global\@eqnswtrue \fi \global\advance\row@\@ne \cr
-  }
-  \def\split@qed{%
-    \def\endsplit{\crcr\egroup \egroup \ctagsplit@false \rendsplit@
-      \aftergroup\align@qed
-    }%
-  }
-  \def\align@qed{%
-    \ifmeasuring@ \tag*{\qedsymbol}%
-    \else \let\math@cr@@@\qed@tag
-    \fi
-  }
-  \@xp\let\csname align*@qed\endcsname\align@qed
-  \@xp\let\csname gather*@qed\endcsname\align@qed
-%% Needs some patching up for amsmath 1.2
-}{% end of amsmath branch, start plain LaTeX branch
-  \def\math@qedhere{%
-    \@ifundefined{\@currenvir @qed}{%
-      \qed@warning \aftergroup\displaymath@qed
-    }{%
-      \@xp\aftergroup\csname\@currenvir @qed\endcsname
-    }%
-  }
-  \def\displaymath@qed{%
-    \relax
-    \ifmmode
-      \ifinner \aftergroup\aftergroup\aftergroup\linebox@qed
-      \else
-        \eqno \def\@badmath{$$}%
-        \let\eqno\relax \let\leqno\relax \let\veqno\relax
-        \hbox{\qedsymbol}%
-      \fi
-    \else
-       \aftergroup\linebox@qed
-    \fi
-  }
-  \@ifundefined{ver@leqno.clo}{%
-    \def\equation@qed{\displaymath@qed \quad}%
-  }{%
-    \def\equation@qed{\displaymath@qed}%
-  }
-  \def\@tempa#1$#2#3\@nil{%
-    \def\[{#1$#2\def\@currenvir{displaymath}#3}%
-  }%
-  \expandafter\@tempa\[\@nil
-}
-\@ifpackageloaded{amstex}{%
-  \def\@tempa{TT}%
-}{%
-  \@ifpackageloaded{amsmath}{%
-    \def\@tempb#1 v#2.#3\@nil{#2}%
-    \ifnum\@xp\@xp\@xp\@tempb\csname ver@amsmath.sty\endcsname v0.0\@nil
-       <\tw@
-      \def\@tempa{TT}%
-    \else
-      \def\@tempa{TF}%
-    \fi
-  }{%
-    \def\@tempa{TF}
-  }%
-}
-\if\@tempa
-  \renewcommand{\math@qedhere}{\quad\hbox{\qedsymbol}}%
-\fi
-\newcommand{\openbox}{\leavevmode
-  \hbox to.77778em{%
-  \hfil\vrule
-  \vbox to.675em{\hrule width.6em\vfil\hrule}%
-  \vrule\hfil}}
-\DeclareRobustCommand{\textsquare}{%
-  \begingroup \usefont{U}{msa}{m}{n}\thr@@\endgroup
-}
-\@ifclasswith{\@classname}{noamsfonts}{%
-  \providecommand{\qedsymbol}{\openbox}%
-}{}
-\providecommand{\qedsymbol}{\textsquare}
-\newenvironment{proof}[1][\proofname]{\par
-  \pushQED{\qed}%
-  \normalfont \topsep6\p@\@plus6\p@\relax
-  \trivlist
-  \item[\hskip\labelsep
-        \itshape
-    #1\@addpunct{.}]\ignorespaces
-}{%
-  \popQED\endtrivlist\@endpefalse
-}
-\providecommand{\proofname}{Proof}
-\def\bb@skip#1{%
-  \skip@#1\relax \advance\skip@-\prevdepth \advance\skip@-\baselineskip
-  \vskip\skip@}
-\def\markleft#1{{\let\protect\noexpand
-    \let\label\relax \let\index\relax \let\glossary\relax
-    \expandafter\@markleft\@themark{#1}%
-    \mark{\@themark}}%
-  \if@nobreak\ifvmode\nobreak\fi\fi}
-\def\@markleft#1#2#3{\gdef\@themark{{#3}{#2}}}
-\def\@tempa{}
-\edef\@dh{%
-  \noexpand\mathhexbox{\hexnumber@\symAMSb}67}
-\DeclareTextCommand{\dh}{OT1}{%
-  \edef\@tempb{\scdefault}%
-  \ifx\f@shape\@tempb
-    \leavevmode
-    \raisebox{-.8ex}{\makebox[\z@][l]{\hskip-.08em\accent"16\hss}}d%
-  \else
-    \@dh
-  \fi
-}
-\DeclareTextCommand{\DH}{OT1}{%
-  \leavevmode\raisebox{-.5ex}{\makebox[\z@][l]{\hskip-.07em\accent"16\hss}}D}
-\DeclareTextCommand{\DJ}{OT1}{%
-  \leavevmode\raisebox{-.5ex}{\makebox[\z@][l]{\hskip-.07em\accent"16\hss}}D}
-\DeclareTextCommand{\dj}{OT1}{%
-  \edef\@tempa{\f@shape}\edef\@tempb{\scdefault}%
-  \ifx\@tempa\@tempb
-    \leavevmode
-    \raisebox{-.75ex}{\makebox[\z@][l]{\hskip-.08em\accent"16\hss}}d%
-  \else
-    \leavevmode\raisebox{.02ex}{\makebox[\z@][l]{\hskip.1em\accent"16\hss}}d%
-  \fi}
-\hyphenation{acad-e-my acad-e-mies af-ter-thought anom-aly anom-alies
-an-ti-deriv-a-tive an-tin-o-my an-tin-o-mies apoth-e-o-ses
-apoth-e-o-sis ap-pen-dix ar-che-typ-al as-sign-a-ble as-sist-ant-ship
-as-ymp-tot-ic asyn-chro-nous at-trib-uted at-trib-ut-able bank-rupt
-bank-rupt-cy bi-dif-fer-en-tial blue-print busier busiest
-cat-a-stroph-ic cat-a-stroph-i-cally con-gress cross-hatched data-base
-de-fin-i-tive de-riv-a-tive dis-trib-ute dri-ver dri-vers eco-nom-ics
-econ-o-mist elit-ist equi-vari-ant ex-quis-ite ex-tra-or-di-nary
-flow-chart for-mi-da-ble forth-right friv-o-lous ge-o-des-ic
-ge-o-det-ic geo-met-ric griev-ance griev-ous griev-ous-ly
-hexa-dec-i-mal ho-lo-no-my ho-mo-thetic ideals idio-syn-crasy
-in-fin-ite-ly in-fin-i-tes-i-mal ir-rev-o-ca-ble key-stroke
-lam-en-ta-ble light-weight mal-a-prop-ism man-u-script mar-gin-al
-meta-bol-ic me-tab-o-lism meta-lan-guage me-trop-o-lis
-met-ro-pol-i-tan mi-nut-est mol-e-cule mono-chrome mono-pole
-mo-nop-oly mono-spline mo-not-o-nous mul-ti-fac-eted mul-ti-plic-able
-non-euclid-ean non-iso-mor-phic non-smooth par-a-digm par-a-bol-ic
-pa-rab-o-loid pa-ram-e-trize para-mount pen-ta-gon phe-nom-e-non
-post-script pre-am-ble pro-ce-dur-al pro-hib-i-tive pro-hib-i-tive-ly
-pseu-do-dif-fer-en-tial pseu-do-fi-nite pseu-do-nym qua-drat-ic
-quad-ra-ture qua-si-smooth qua-si-sta-tion-ary qua-si-tri-an-gu-lar
-quin-tes-sence quin-tes-sen-tial re-arrange-ment rec-tan-gle
-ret-ri-bu-tion retro-fit retro-fit-ted right-eous right-eous-ness
-ro-bot ro-bot-ics sched-ul-ing se-mes-ter semi-def-i-nite
-semi-ho-mo-thet-ic set-up se-vere-ly side-step sov-er-eign spe-cious
-spher-oid spher-oid-al star-tling star-tling-ly sta-tis-tics
-sto-chas-tic straight-est strange-ness strat-a-gem strong-hold
-sum-ma-ble symp-to-matic syn-chro-nous topo-graph-i-cal tra-vers-a-ble
-tra-ver-sal tra-ver-sals treach-ery turn-around un-at-tached
-un-err-ing-ly white-space wide-spread wing-spread wretch-ed
-wretch-ed-ly Eng-lish Euler-ian Feb-ru-ary Gauss-ian
-Hamil-ton-ian Her-mit-ian Jan-u-ary Japan-ese Kor-te-weg
-Le-gendre Mar-kov-ian Noe-ther-ian No-vem-ber Rie-mann-ian Sep-tem-ber}
-\def\calclayout{\advance\textheight -\headheight
-  \advance\textheight -\headsep
-  \oddsidemargin\paperwidth
-  \advance\oddsidemargin -\textwidth
-  \divide\oddsidemargin\tw@
-  \ifdim\oddsidemargin<.5truein \oddsidemargin.5truein \fi
-  \advance\oddsidemargin -1truein
-  \evensidemargin\oddsidemargin
-  \topmargin\paperheight \advance\topmargin -\textheight
-  \advance\topmargin -\headheight \advance\topmargin -\headsep
-  \divide\topmargin\tw@
-  \ifdim\topmargin<.5truein \topmargin.5truein \fi
-  \advance\topmargin -1truein\relax
-}
-\InputIfFileExists{amsart.cfg}{}{%
-  \calclayout % initialize
-  \pagenumbering{arabic}%
-  \pagestyle{headings}%
-  \thispagestyle{plain}%
-}
-\if@compatibility \else\endinput\fi
-\def\tiny{\Tiny}
-\def\defaultfont{\normalfont}
-\def\rom{\textup}
-\let\@newpf\proof \let\proof\relax \let\endproof\relax
-\newenvironment{pf}{\@newpf[\proofname]}{\popQED\endtrivlist}
-\newenvironment{pf*}[1]{\@newpf[#1]}{\popQED\endtrivlist}
-\endinput
-%%
-%% End of file `amsart.cls'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/amsbook.cls b/Master/texmf-dist/tex/latex/amslatex/amsbook.cls
deleted file mode 100644
index bce71739d58..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/amsbook.cls
+++ /dev/null
@@ -1,1871 +0,0 @@
-%%
-%% This is file `amsbook.cls',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsclass.dtx  (with options: `amsbook,classes')
-%% 
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsclass.dtx",
-%%%   version   = "2.20",
-%%%   date      = "2004/08/06",
-%%%   time      = "13:03:53 EDT",
-%%%   checksum  = "53558 5204 20497 185872",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995, 1999, 2004
-%%%                American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Publications Technical Group,
-%%%                201 Charles Street,
-%%%                Providence, RI 02904,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, AMS, documentclass, theorem",
-%%%   supported = "yes",
-%%%   abstract  = "This is the source for the amsthm package and three
-%%%                AMS document classes: amsart, amsproc, and amsbook.
-%%%                They are designed for use with LaTeX.",
-%%%   docstring = "The checksum field above contains a CRC-16 checksum
-%%%                as the first value, followed by the equivalent of
-%%%                the standard UNIX wc (word count) utility output of
-%%%                lines, words, and characters.  This is produced by
-%%%                Robert Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1995/06/01]% LaTeX date must be June 1995 or later
-\ProvidesClass{amsbook}[2004/08/06 v2.20]
-\global\expandafter\let\csname ver@amsthm.sty\expandafter\endcsname
-  \csname ver@\@currname.\@currext\endcsname
-\let\@xp=\expandafter
-\let\@nx=\noexpand
-\def\@oparg#1[#2]{\@ifnextchar[{#1}{#1[#2]}}
-\long\def\@ifempty#1{\@xifempty#1@@..\@nil}
-\long\def\@xifempty#1#2@#3#4#5\@nil{%
-  \ifx#3#4\@xp\@firstoftwo\else\@xp\@secondoftwo\fi}
-\long\def\@ifnotempty#1{\@ifempty{#1}{}}
-\def\setboxz@h{\setbox\z@\hbox}
-\def\@addpunct#1{%
-  \relax\ifhmode
-    \ifnum\spacefactor>\@m \else#1\fi
-  \fi}
-\def\nopunct{\spacefactor 1007 }
-\def\frenchspacing{\sfcode`\.1006\sfcode`\?1005\sfcode`\!1004%
-  \sfcode`\:1003\sfcode`\;1002\sfcode`\,1001 }
-\def\@tempa#1#2\@nil{\edef\@classname{#1}}
-\expandafter\@tempa\@currnamestack{}{}{}\@nil
-\ifx\@classname\@empty \edef\@classname{\@currname}\fi
-\def\@True{00}
-\def\@False{01}
-\newcommand\newswitch[2][False]{%
-  \expandafter\@ifdefinable\csname ?@#2\endcsname{%
-    \global\expandafter\let\csname ?@#2\expandafter\endcsname
-      \csname @#1\endcsname
-  }%
-}
-\newcommand{\setFalse}[1]{%
-  \expandafter\let\csname ?@#1\endcsname\@False
-}
-\newcommand{\setTrue}[1]{%
-  \expandafter\let\csname ?@#1\endcsname\@True
-}
-\newswitch{}
-\DeclareRobustCommand{\except}[1]{%
-  \if\csname ?@#1\endcsname \expandafter\@gobble
-  \else \expandafter\@firstofone
-  \fi
-}
-\DeclareRobustCommand{\for}[1]{%
-  \if\csname ?@#1\endcsname \expandafter\@firstofone
-  \else \expandafter\@gobble
-  \fi
-}
-\DeclareRobustCommand{\forany}[1]{%
-  \csname for@any@01\endcsname#1,?,\@nil
-}
-\@namedef{for@any@\@False}#1,{%
-  \csname for@any@%
-    \csname ?@\zap@space#1 \@empty\endcsname
-  \endcsname
-}
-\@namedef{?@?}{x}
-\@namedef{for@any@\@True}#1\@nil#2{#2}
-\def\for@any@x{\@car\@gobble}
-\DeclareOption{a4paper}{\paperheight 297mm\paperwidth 210mm
-  \textheight 54.5pc }
-\DeclareOption{letterpaper}{\paperheight 11in\paperwidth 8.5in }
-\DeclareOption{landscape}{\@tempdima\paperheight
-  \paperheight\paperwidth \paperwidth\@tempdima}
-\DeclareOption{portrait}{}
-\DeclareOption{oneside}{\@twosidefalse \@mparswitchfalse}
-\DeclareOption{twoside}{\@twosidetrue  \@mparswitchtrue}
-\DeclareOption{draft}{\overfullrule5\p@
-  \ClassWarningNoLine{\@classname}{%
-    When the draft option is used, the
-      \protect\includegraphics\MessageBreak
-    command will print blank placeholder boxes\MessageBreak
-    for the graphics}%
-}
-\DeclareOption{final}{\overfullrule\z@ }
-\def\dateposted#1{\def\@dateposted{#1}}%
-\let\@dateposted\@empty
-\newif\if@titlepage
-\DeclareOption{titlepage}{\@titlepagetrue}
-\DeclareOption{notitlepage}{\@titlepagefalse}
-\newif\if@openright
-\DeclareOption{openright}{\@openrighttrue}
-\DeclareOption{openany}{\@openrightfalse}
-\@openrighttrue
-\DeclareOption{onecolumn}{\@twocolumnfalse}
-\DeclareOption{twocolumn}{\@twocolumntrue}
-\DeclareOption{nomath}{}
-\DeclareOption{noamsfonts}{}
-\DeclareOption{psamsfonts}{%
-  \PassOptionsToPackage{psamsfonts}{amsfonts}%
-  \PassOptionsToPackage{cmex10}{amsmath}}
-\newif\iftagsleft@
-\DeclareOption{leqno}{%
-  \tagsleft@true \PassOptionsToPackage{leqno}{amsmath}}
-\DeclareOption{reqno}{%
-  \tagsleft@false \PassOptionsToPackage{reqno}{amsmath}}
-\newif\ifctagsplit@
-\DeclareOption{centertags}{%
-  \ctagsplit@true \PassOptionsToPackage{centertags}{amsmath}}
-\DeclareOption{tbtags}{%
-  \ctagsplit@false \PassOptionsToPackage{tbtags}{amsmath}}
-\DeclareOption{fleqn}{}%
-\newcommand{\@mainsize}{10}
-\newcommand{\@ptsize}{0}
-\newcommand{\larger}[1][1]{%
-  \count@\@currsizeindex \advance\count@#1\relax
-  \ifnum\count@<\z@ \count@\z@ \else\ifnum\count@>12 \count@12 \fi\fi
-  \ifcase\count@
-    \Tiny\or\Tiny\or\tiny\or\SMALL\or\Small\or\small
-    \or\normalsize
-    \or\large\or\Large\or\LARGE\or\huge\or\Huge\else\Huge
-  \fi
-}
-\newcommand{\smaller}[1][1]{\larger[-#1]}
-\def\@adjustvertspacing{%
-  \bigskipamount.7\baselineskip plus.7\baselineskip
-  \medskipamount\bigskipamount \divide\medskipamount\tw@
-  \smallskipamount\medskipamount \divide\smallskipamount\tw@
-  \abovedisplayskip\medskipamount
-  \belowdisplayskip \abovedisplayskip
-  \abovedisplayshortskip\abovedisplayskip
-  \advance\abovedisplayshortskip-1\abovedisplayskip
-  \belowdisplayshortskip\abovedisplayshortskip
-  \advance\belowdisplayshortskip 1\smallskipamount
-  \jot\baselineskip \divide\jot 4 \relax
-}
-\renewcommand\normalsize{\@xsetfontsize\normalsize 6%
-  \@adjustvertspacing \let\@listi\@listI}
-\DeclareRobustCommand{\Tiny}{\@xsetfontsize\Tiny 1}
-\DeclareRobustCommand{\tiny}{\@xsetfontsize\tiny 2}
-\DeclareRobustCommand{\SMALL}{\@xsetfontsize\SMALL 3}
-\DeclareRobustCommand{\Small}{\@xsetfontsize\Small 4%
-  \@adjustvertspacing
-  \def\@listi{\topsep\smallskipamount \parsep\z@skip \itemsep\z@skip
-    \leftmargin=\leftmargini
-    \labelwidth=\leftmargini \advance\labelwidth-\labelsep
-  }%
-}
-\DeclareRobustCommand{\small}{\@xsetfontsize\small 5\@adjustvertspacing}
-\def\footnotesize{\Small}
-\def\scriptsize{\SMALL}
-\DeclareRobustCommand{\large}{\@xsetfontsize\large 7\@adjustvertspacing}
-\DeclareRobustCommand{\Large}{\@xsetfontsize\Large 8\@adjustvertspacing}
-\DeclareRobustCommand{\LARGE}{\@xsetfontsize\LARGE 9}
-\DeclareRobustCommand{\huge}{\@xsetfontsize\huge{10}}
-\DeclareRobustCommand{\Huge}{\@xsetfontsize\Huge{11}}
-\def\@xsetfontsize#1#2{%
-  \chardef\@currsizeindex#2\relax
-  \edef\@tempa{\@nx\@setfontsize\@nx#1%
-    \@xp\ifcase\@xp\@currsizeindex\@typesizes
-      \else{99}{99}\fi}%
-  \@tempa
-}
-\chardef\@currsizeindex=6
-\widowpenalty=10000
-\clubpenalty=10000
-\brokenpenalty=10000
-\newdimen\linespacing
-\lineskip=1pt \lineskiplimit=1pt
-\normallineskip=1pt \normallineskiplimit=1pt
-\let\baselinestretch=\@empty
-\headheight=8pt \headsep=14pt
-\footskip=18pt
-\textheight=50.5pc \topskip=10pt
-\textwidth=30pc
-\columnsep=10pt \columnseprule=0pt
-\marginparwidth=90pt
-\marginparsep=11pt
-\marginparpush=5pt
-\AtBeginDocument{\settoheight{\footnotesep}{\footnotesize M$^1$}}
-\skip\footins=7pt plus11pt
-\skip\@mpfootins=\skip\footins
-\fboxsep=3pt \fboxrule=.4pt
-\arrayrulewidth=.4pt    \doublerulesep=2pt
-\labelsep=5pt           \arraycolsep=\labelsep
-\tabcolsep=\labelsep    \tabbingsep=\labelsep
-\floatsep=15pt plus 12pt    \dblfloatsep=15pt plus 12pt
-\textfloatsep=\floatsep  \dbltextfloatsep=15pt plus 12pt
-\intextsep=\floatsep
-\@fptop=0pt plus1fil     \@dblfptop=0pt plus1fil
-\@fpbot=0pt plus1fil     \@dblfpbot=0pt plus1fil
-\@fpsep=8pt plus2fil     \@dblfpsep=8pt plus2fil\relax
-\parskip=0pt \relax
-\newdimen\normalparindent
-\normalparindent=18pt
-\parindent=\normalparindent
-\partopsep=0pt \relax \parsep=0pt \relax \itemsep=0pt \relax
-\@lowpenalty=51         \@medpenalty=151        \@highpenalty=301
-\@beginparpenalty=-\@lowpenalty
-\@endparpenalty=-\@lowpenalty
-\@itempenalty=-\@lowpenalty
-\DeclareOption{10pt}{\def\@mainsize{10}\def\@ptsize{0}%
-  \def\@typesizes{%
-    \or{5}{6}\or{6}{7}\or{7}{8}\or{8}{10}\or{9}{11}%
-    \or{10}{12}% normalsize
-    \or{\@xipt}{13}\or{\@xiipt}{14}\or{\@xivpt}{17}%
-    \or{\@xviipt}{20}\or{\@xxpt}{24}}%
-  \normalsize \linespacing=\baselineskip
-}
-\DeclareOption{11pt}{\def\@mainsize{11}\def\@ptsize{1}%
-  \def\@typesizes{%
-    \or{6}{7}\or{7}{8}\or{8}{10}\or{9}{11}\or{10}{12}%
-    \or{\@xipt}{13}% normalsize
-    \or{\@xiipt}{14}\or{\@xivpt}{17}\or{\@xviipt}{20}%
-    \or{\@xxpt}{24}\or{\@xxvpt}{30}}%
-  \normalsize \linespacing=\baselineskip
-}
-\DeclareOption{12pt}{\def\@mainsize{12}\def\@ptsize{2}%
-  \def\@typesizes{%
-    \or{7}{8}\or{8}{10}\or{9}{11}\or{10}{12}\or{\@xipt}{13}%
-    \or{\@xiipt}{14}% normalsize
-    \or{\@xivpt}{17}\or{\@xviipt}{20}\or{\@xxpt}{24}%
-    \or{\@xxvpt}{30}\or{\@xxvpt}{30}}%
-  \normalsize \linespacing=\baselineskip
-}
-\DeclareOption{8pt}{\def\@mainsize{8}\def\@ptsize{8}%
-  \def\@typesizes{%
-    \or{5}{6}\or{5}{6}\or{5}{6}\or{6}{7}\or{7}{8}%
-    \or{8}{10}% normalsize
-    \or{9}{11}\or{10}{12}\or{\@xipt}{13}%
-    \or{\@xiipt}{14}\or{\@xivpt}{17}}%
-  \normalsize \linespacing=\baselineskip
-}
-\DeclareOption{9pt}{\def\@mainsize{9}\def\@ptsize{9}%
-  \def\@typesizes{%
-    \or{5}{6}\or{5}{6}\or{6}{7}\or{7}{8}\or{8}{10}%
-    \or{9}{11}% normalsize
-    \or{10}{12}\or{\@xipt}{13}\or{\@xiipt}{14}%
-    \or{\@xivpt}{17}\or{\@xviipt}{20}}%
-  \normalsize \linespacing=\baselineskip
-}
-\def\ps@empty{\let\@mkboth\@gobbletwo
-  \let\@oddhead\@empty \let\@evenhead\@empty
-  \let\@oddfoot\@empty \let\@evenfoot\@empty
-  \global\topskip\normaltopskip}
-\def\ps@plain{\ps@empty
-  \def\@oddfoot{\normalfont\scriptsize \hfil\thepage\hfil}%
-  \let\@evenfoot\@oddfoot}
-\newswitch{runhead}
-\def\ps@headings{\ps@empty
-  \def\@evenhead{%
-    \setTrue{runhead}%
-    \normalfont\scriptsize
-    \rlap{\thepage}\hfil
-    \def\thanks{\protect\thanks@warning}%
-    \leftmark{}{}\hfil}%
-  \def\@oddhead{%
-    \setTrue{runhead}%
-    \normalfont\scriptsize \hfil
-    \def\thanks{\protect\thanks@warning}%
-    \rightmark{}{}\hfil \llap{\thepage}}%
-  \let\@mkboth\markboth
-  \def\partmark{\@secmark\markboth\partrunhead\partname}%
-  \def\chaptermark{%
-    \@secmark\markboth\chapterrunhead{}}%
-  \def\sectionmark{%
-    \@secmark\markright\sectionrunhead\sectionname}%
-}
-\let\sectionname\@empty
-\let\subsectionname\@empty
-\let\subsubsectionname\@empty
-\let\paragraphname\@empty
-\let\subparagraphname\@empty
-\def\leftmark{\expandafter\@firstoftwo\topmark{}{}}
-\def\rightmark{\expandafter\@secondoftwo\botmark{}{}}
-\long\def\@nilgobble#1\@nil{}
-\def\@secmark#1#2#3#4{%
-  \begingroup \let\protect\@unexpandable@protect
-  \edef\@tempa{\endgroup \toks@{\protect#2{#3}{\@secnumber}}}%
-  \@tempa
-  \toks@\@xp{\the\toks@{#4}}%
-  \afterassignment\@nilgobble\@temptokena\@themark{}\@nil
-  \edef\@tempa{\@nx\@mkboth{%
-    \ifx\markright#1\the\@temptokena\else\the\toks@\fi}{\the\toks@}}%
-  \@tempa}
-\let\@secnumber\@empty
-\def\markboth#1#2{%
-  \begingroup
-    \@temptokena{{#1}{#2}}\xdef\@themark{\the\@temptokena}%
-    \mark{\the\@temptokena}%
-  \endgroup
-  \if@nobreak\ifvmode\nobreak\fi\fi}
-\def\ps@myheadings{\ps@headings \let\@mkboth\@gobbletwo}
-\newskip\normaltopskip
-\normaltopskip=10pt \relax
-\let\sectionmark\@gobble
-\let\subsectionmark\@gobble
-\let\subsubsectionmark\@gobble
-\let\paragraphmark\@gobble
-
-\DeclareOption{makeidx}{}
-\ExecuteOptions{leqno,centertags,letterpaper,portrait,%
-  10pt,twoside,onecolumn,final}
-\ProcessOptions\relax
-\if@compatibility
-  \def\@tempa{\RequirePackage{amstex}\relax}%
-\else
-  \@ifclasswith{\@classname}{nomath}{%
-    \let\@tempa\relax
-  }{%
-    \def\@tempa{\RequirePackage{amsmath}\relax}%
-  }%
-\fi
-\@tempa % load amstex.sty or amsmath.sty
-\@ifundefined{numberwithin}{%
-  \newcommand{\numberwithin}[3][\arabic]{%
-    \@ifundefined{c@#2}{\@nocounterr{#2}}{%
-      \@ifundefined{c@#3}{\@nocnterr{#3}}{%
-        \@addtoreset{#2}{#3}%
-        \@xp\xdef\csname the#2\endcsname{%
-          \@xp\@nx\csname the#3\endcsname .\@nx#1{#2}}}}%
-  }
-  \csname newtoks\endcsname\@emptytoks
-}{}
-\if@compatibility
-\else
-  \@ifclasswith{\@classname}{noamsfonts}{%
-    % amsfonts package is not wanted
-  }{%
-    % amsfonts package IS wanted; test whether a recent enough version
-    % seems to be installed
-    \begingroup \fontencoding{U}\fontfamily{msa}\try@load@fontshape\endgroup
-    \global\@xp\let\csname U+msa\endcsname\relax % reset
-    \@ifundefined{U/msa/m/n}{%
-      \ClassError{\@classname}{%
-  Package `amsfonts' not installed, or version too old?\MessageBreak
-  Unable to get font info for the `msam' fonts in the expected form%
-      }{%
-  The amsfonts package will not be loaded, to avoid probable\MessageBreak
-  incompatibility problems. You can (a) use the `noamsfonts'
-      documentclass\MessageBreak
-  option next time, or (b) check that the amsfonts package is
-      installed\MessageBreak
-  correctly, and is not too old to be compatible.%
-      }%
-    }{%
-      \RequirePackage{amsfonts}[1995/01/01]\relax
-    }%
-  }
-\fi % end yesamsfonts branch
-\let\cleardouble@page\cleardoublepage
-\AtBeginDocument{%
-  \ifx\cleardouble@page\cleardoublepage
-    \def\cleardoublepage{\clearpage{\pagestyle{empty}\cleardouble@page}}
-  \fi
-}
-\newcommand{\uppercasenonmath}[1]{\toks@\@emptytoks
-  \@xp\@skipmath\@xp\@empty#1$$%
-  \edef#1{{\@nx\protect\@nx\@upprep\the\toks@}}%
-}
-\newcommand{\@upprep}{%
-  \spaceskip1.3\fontdimen2\font plus1.3\fontdimen3\font
-  \upchars@}
-\newcommand{\upchars@}{%
-  \def\ss{SS}\def\i{I}\def\j{J}\def\ae{\AE}\def\oe{\OE}%
-  \def\o{\O}\def\aa{\AA}\def\l{\L}\def\Mc{M{\scshape c}}}
-\providecommand{\Mc}{Mc}
-\newcommand{\@skipmath}{}
-\long\def\@skipmath#1$#2${%
-  \@xskipmath#1\(\)%
-  \@ifnotempty{#2}{\toks@\@xp{\the\toks@$#2$}\@skipmath\@empty}}%
-\newcommand{\@xskipmath}{}
-\long\def\@xskipmath#1\(#2\){%
-  \uppercase{\toks@\@xp\@xp\@xp{\@xp\the\@xp\toks@#1}}%
-  \@ifnotempty{#2}{\toks@\@xp{\the\toks@\(#2\)}\@xskipmath\@empty}}%
-\def\altucnm#1{%
-  \MakeTextUppercase{\toks@{#1}}%
-  \edef#1{\the\toks@}%
-}
-\AtBeginDocument{%
-  \@ifundefined{MakeTextUppercase}{}{\let\uppercasenonmath\altucnm}%
-}
-\@ifundefined{MakeUppercase}{\let\MakeUppercase\uppercase}{}%
-\newcommand{\today}{%
-  \relax\ifcase\month\or
-  January\or February\or March\or April\or May\or June\or
-  July\or August\or September\or October\or November\or December\fi
-  \space\number\day, \number\year}
-\DeclareOldFontCommand{\rm}{\normalfont\rmfamily}{\mathrm}
-\DeclareOldFontCommand{\sf}{\normalfont\sffamily}{\mathsf}
-\DeclareOldFontCommand{\tt}{\normalfont\ttfamily}{\mathtt}
-\DeclareOldFontCommand{\bf}{\normalfont\bfseries}{\mathbf}
-\DeclareOldFontCommand{\it}{\normalfont\itshape}{\mathit}
-\DeclareOldFontCommand{\sl}{\normalfont\slshape}{\@nomath\sl}
-\DeclareOldFontCommand{\sc}{\normalfont\scshape}{\@nomath\sc}
-%%\if@compatibility
-%%\else
-%%  \def\@obsolete@fontswitch#1#2#3{%
-%%    \@latex@warning@no@line{%
-%%      Command {\string#1...}\on@line\space is obsolete;\MessageBreak
-%%      the LaTeX2e equivalent is \string#3{...}}%
-%%    \gdef#1{\@fontswitch\relax#3}%
-%%  }
-%%  \DeclareRobustCommand*\cal{%
-%%    \@xp\@obsolete@fontswitch\csname cal \endcsname\relax\mathcal}
-%%  \DeclareRobustCommand*\mit{%
-%%    \@xp\@obsolete@fontswitch\csname mit \endcsname\relax\mathnormal}
-%%\fi
-\renewcommand*{\title}[2][]{\gdef\shorttitle{#1}\gdef\@title{#2}}
-\edef\title{\@nx\@dblarg
-  \@xp\@nx\csname\string\title\endcsname}
-\renewcommand{\author}[2][]{%
-  \ifx\@empty\authors
-    \gdef\authors{#2}%
-  \else
-    \g@addto@macro\authors{\and#2}%
-    \g@addto@macro\addresses{\author{}}%
-  \fi
-  \@ifnotempty{#1}{%
-    \ifx\@empty\shortauthors
-      \gdef\shortauthors{#1}%
-    \else
-      \g@addto@macro\shortauthors{\and#1}%
-    \fi
-  }%
-}
-\edef\author{\@nx\@dblarg
-  \@xp\@nx\csname\string\author\endcsname}
-\let\shortauthors\@empty   \let\authors\@empty
-\let\addresses\@empty      \let\thankses\@empty
-\newcommand{\address}[2][]{\g@addto@macro\addresses{\address{#1}{#2}}}
-\newcommand{\curraddr}[2][]{\g@addto@macro\addresses{\curraddr{#1}{#2}}}
-\newcommand{\email}[2][]{\g@addto@macro\addresses{\email{#1}{#2}}}
-\newcommand{\urladdr}[2][]{\g@addto@macro\addresses{\urladdr{#1}{#2}}}
-\long\def\thanks@warning#1{%
-  \ClassError{\@classname}{%
-    \protect\thanks\space should be given separately, not inside author name.%
-  }\@ehb
-}
-\renewcommand{\thanks}[1]{%
-  \@ifnotempty{#1}{\g@addto@macro\thankses{\thanks{#1}}}%
-}
-\def\curraddrname{{\itshape Current address}}
-\def\emailaddrname{{\itshape E-mail address}}
-\def\urladdrname{{\itshape URL}}
-\def\@setaddresses{\par
-  \nobreak \begingroup
-  \def\author##1{\nobreak\addvspace\bigskipamount}%
-  \def\\{\unskip, \ignorespaces}%
-  \interlinepenalty\@M
-  \def\address##1##2{\begingroup
-    \par\addvspace\bigskipamount\indent
-    \@ifnotempty{##1}{(\ignorespaces##1\unskip) }%
-    {\scshape\ignorespaces##2}\par\endgroup}%
-  \def\curraddr##1##2{\begingroup
-    \@ifnotempty{##2}{\nobreak\indent\curraddrname
-      \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space
-      ##2\par}\endgroup}%
-  \def\email##1##2{\begingroup
-    \@ifnotempty{##2}{\nobreak\indent\emailaddrname
-      \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space
-      \ttfamily##2\par}\endgroup}%
-  \def\urladdr##1##2{\begingroup
-    \def~{\char`\~}%
-    \@ifnotempty{##2}{\nobreak\indent\urladdrname
-      \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space
-      \ttfamily##2\par}\endgroup}%
-  \addresses
-  \endgroup
-}
-\let\@date\@empty
-\def\dedicatory#1{\def\@dedicatory{#1}}
-\let\@dedicatory=\@empty
-\def\keywords#1{\def\@keywords{#1}}
-\let\@keywords=\@empty
-\newcommand*\subjclass[2][1991]{%
-  \def\@subjclass{#2}%
-  \@ifundefined{subjclassname@#1}{%
-    \ClassWarning{\@classname}{Unknown edition (#1) of Mathematics
-      Subject Classification; using '1991'.}%
-  }{%
-    \@xp\let\@xp\subjclassname\csname subjclassname@#1\endcsname
-  }%
-}
-\let\@subjclass=\@empty
-\def\translname{Translated by}
-\def\translator#1{%
-  \ifx\@empty\@translators \def\@translators{#1}%
-  \else\g@addto@macro\@translators{\and#1}\fi}
-\let\@translators=\@empty
-\newcommand{\xandlist}[4]{\@andlista{{#1}{#2}{#3}}#4\and\and}
-\def\@andlista#1#2\and#3\and{\@andlistc{#2}\@ifnotempty{#3}{%
-  \@andlistb#1{#3}}}
-\def\@andlistb#1#2#3#4#5\and{%
-  \@ifempty{#5}{%
-    \@andlistc{#2#4}%
-  }{%
-    \@andlistc{#1#4}\@andlistb{#1}{#3}{#3}{#5}%
-  }}
-\let\@andlistc\@iden
-\newcommand{\nxandlist}[4]{%
-  \def\@andlistc##1{\toks@\@xp{\the\toks@##1}}%
-  \toks@{\toks@\@emptytoks \@andlista{{#1}{#2}{#3}}}%
-  \the\@xp\toks@#4\and\and
-  \edef#4{\the\toks@}%
-  \let\@andlistc\@iden}
-\def\@@and{and}
-\newcommand{\andify}{%
-  \nxandlist{\unskip, }{\unskip{} \@@and~}{\unskip, \@@and~}}
-\def\and{\unskip{ }\@@and{ }\ignorespaces}
-\newcommand{\copyrightinfo}[2]{%
-  \def\copyrightyear{#1}%
-  \@ifnotempty{#2}{\def\copyrightholder{#2}}%
-}
-\copyrightinfo{0000}{(copyright holder)}
-\newinsert\copyins
-\skip\copyins=1.5pc
-\count\copyins=1000 % magnification factor, 1000 = 100%
-\dimen\copyins=.5\textheight % maximum allowed per page
-\g@addto@macro\@reinserts{%
-  \ifvoid\copyins\else\insert\copyins{\unvbox\copyins}\fi
-}
-\def\@copyinsfontsize{\fontsize{6}{7\p@}\normalfont\upshape}
-\newif\if@extracrline  \@extracrlinefalse
-\let\@extracrline\@empty
-\relax
-\def\@setcopyright{%
-  \ifx\@empty\@serieslogo
-  \else\ifx\@empty\copyrightyear
-  \else
-    \insert\copyins{\hsize\textwidth
-      \parfillskip\z@\relax
-      \leftskip\z@\@plus.9\textwidth\relax \rightskip\z@\relax
-      \@copyinsfontsize
-      \everypar{}%
-      \vskip-\skip\copyins
-      \if@extracrline
-        \vskip-6pt
-      \fi
-      \nointerlineskip
-      \leavevmode\hfill\vrule\@width\z@\@height\skip\copyins
-      \copyright\copyrightyear\ \copyrightholder\ignorespaces
-      \if@extracrline \@extracrline \fi
-      \par
-      \kern\z@}%
-  \fi\fi
-}
-\def\@combinefloats{%
-  \ifx \@toplist\@empty \else \@cflt \fi
-  \ifx \@botlist\@empty \else \@cflb \fi
-  \ifvoid\copyins \else \@cflci \fi
-}
-\def\@cflci{%
-  \setbox\@outputbox\vbox{%
-    \unvbox\@outputbox
-    \vskip\skip\copyins
-    \if@twocolumn \else \vskip\z@ plus\p@ \fi
-    \hbox to\columnwidth{%
-      \hss\vbox to\z@{\vss
-        \if@twocolumn
-          \if@firstcolumn \else \unvbox\copyins \fi
-        \else
-          \unvbox\copyins
-        \fi
-        }}}%
-  \if@twocolumn \if@firstcolumn
-    \insert\copyins{\unvbox\copyins}%
-  \fi\fi
-  \global\count\copyins=999 \relax
-}
-\newcommand{\abstractname}{Abstract}
-\newcommand{\keywordsname}{Key words and phrases}
-\newcommand{\subjclassname}{%
-  \textup{1991} Mathematics Subject Classification}
-\@xp\let\csname subjclassname@1991\endcsname \subjclassname
-\@namedef{subjclassname@2000}{%
-  \textup{2000} Mathematics Subject Classification}
-\def\@tempb{amsbook}
-\ifx\@classname\@tempb
-  \newcommand{\datename}{\textit{Date}:}
-\else
-  \newcommand{\datename}{Received by the editors}
-\fi
-\def\@setthanks{\def\thanks##1{\par##1\@addpunct.}\thankses}
-\newbox\abstractbox
-\newenvironment{abstract}{%
-  \ifx\maketitle\relax
-    \ClassWarning{\@classname}{Abstract should precede
-      \protect\maketitle\space in AMS document classes; reported}%
-  \fi
-  \global\setbox\abstractbox=\vtop \bgroup
-    \normalfont\Small
-    \list{}{\labelwidth\z@
-      \leftmargin3pc \rightmargin\leftmargin
-      \listparindent\normalparindent \itemindent\z@
-      \parsep\z@ \@plus\p@
-      \let\fullwidthdisplay\relax
-    }%
-    \item[\hskip\labelsep\scshape\abstractname.]%
-}{%
-  \endlist\egroup
-  \ifx\@setabstract\relax \@setabstracta \fi
-}
-\def\@setabstract{\@setabstracta \global\let\@setabstract\relax}
-\def\@setabstracta{%
-  \ifvoid\abstractbox
-  \else
-    \skip@20\p@ \advance\skip@-\lastskip
-    \advance\skip@-\baselineskip \vskip\skip@
-    \box\abstractbox
-    \prevdepth\z@ % because \abstractbox is a vtop
-  \fi
-}
-\def\titlepage{%
-  \cleardoublepage
-  \thispagestyle{empty}\setcounter{page}{0}}
-\def\endtitlepage{\newpage}
-\def\labelenumi{(\theenumi)}
-\def\theenumi{\@arabic\c@enumi}
-\def\labelenumii{(\theenumii)}
-\def\theenumii{\@alph\c@enumii}
-\def\p@enumii{\theenumi}
-\def\labelenumiii{(\theenumiii)}
-\def\theenumiii{\@roman\c@enumiii}
-\def\p@enumiii{\theenumi(\theenumii)}
-\def\labelenumiv{(\theenumiv)}
-\def\theenumiv{\@Alph\c@enumiv}
-\def\p@enumiv{\p@enumiii\theenumiii}
-\def\labelitemi{$\m@th\bullet$}
-\def\labelitemii{\bfseries --}% \upshape already done by \itemize
-\def\labelitemiii{$\m@th\ast$}
-\def\labelitemiv{$\m@th\cdot$}
-\newenvironment{verse}{\let\\\@centercr
-  \list{}{\itemsep\z@ \itemindent -1.5em\listparindent\itemindent
-  \rightmargin\leftmargin \advance\leftmargin 1.5em}\item[]%
-}{%
-  \endlist
-}
-\let\endverse=\endlist % for efficiency
-\newenvironment{quotation}{\list{}{%
-    \leftmargin3pc \listparindent\normalparindent
-    \itemindent\z@
-    \rightmargin\leftmargin \parsep\z@ \@plus\p@}%
-  \item[]%
-}{%
-  \endlist
-}
-\let\endquotation=\endlist % for efficiency
-\newenvironment{quote}{%
-  \list{}{\rightmargin\leftmargin}\item[]%
-}{%
-  \endlist
-}
-\let\endquote=\endlist % for efficiency
-\def\trivlist{\parsep\parskip\@nmbrlistfalse
-  \@trivlist \labelwidth\z@ \leftmargin\z@
-  \itemindent\z@
-  \let\@itemlabel\@empty
-  \def\makelabel##1{\upshape##1}}
-\renewenvironment{enumerate}{%
-  \ifnum \@enumdepth >3 \@toodeep\else
-      \advance\@enumdepth \@ne
-      \edef\@enumctr{enum\romannumeral\the\@enumdepth}\list
-      {\csname label\@enumctr\endcsname}{\usecounter
-        {\@enumctr}\def\makelabel##1{\hss\llap{\upshape##1}}}\fi
-}{%
-  \endlist
-}
-\let\endenumerate=\endlist % for efficiency
-\renewenvironment{itemize}{%
-  \ifnum\@itemdepth>3 \@toodeep
-  \else \advance\@itemdepth\@ne
-    \edef\@itemitem{labelitem\romannumeral\the\@itemdepth}%
-    \list{\csname\@itemitem\endcsname}%
-      {\def\makelabel##1{\hss\llap{\upshape##1}}}%
-  \fi
-}{%
-  \endlist
-}
-\let\enditemize=\endlist % for efficiency
-\newcommand{\descriptionlabel}[1]{\hspace\labelsep \upshape\bfseries #1:}
-\newenvironment{description}{\list{}{%
-  \advance\leftmargini6\p@ \itemindent-12\p@
-  \labelwidth\z@ \let\makelabel\descriptionlabel}%
-}{
-  \endlist
-}
-\let\enddescription=\endlist % for efficiency
-\let\upn=\textup
-\AtBeginDocument{%
-  \labelsep=5pt\relax
-  \setcounter{enumi}{13}\setcounter{enumii}{13}%
-  \setcounter{enumiii}{13}\setcounter{enumiv}{13}%
-  \settowidth\leftmargini{\labelenumi\hskip\labelsep}%
-  \advance\leftmargini by \normalparindent
-  \settowidth\leftmarginii{\labelenumii\hskip\labelsep}%
-  \settowidth\leftmarginiii{\labelenumiii\hskip\labelsep}%
-  \settowidth\leftmarginiv{\labelenumiv\hskip\labelsep}%
-  \setcounter{enumi}{0}\setcounter{enumii}{0}%
-  \setcounter{enumiii}{0}\setcounter{enumiv}{0}%
-  \leftmarginv=10pt  \leftmarginvi=\leftmarginv
-  \leftmargin=\leftmargini
-  \labelwidth=\leftmargini \advance\labelwidth-\labelsep
-  \@listi}
-\newskip\listisep
-\listisep\smallskipamount
-\def\@listI{\leftmargin\leftmargini \parsep\z@skip
-  \topsep\listisep \itemsep\z@skip
-  \listparindent\normalparindent}
-\let\@listi\@listI
-\def\@listii{\leftmargin\leftmarginii
-  \labelwidth\leftmarginii \advance\labelwidth-\labelsep
-  \topsep\z@skip \parsep\z@skip \partopsep\z@skip \itemsep\z@skip}
-\def\@listiii{\leftmargin\leftmarginiii
-  \labelwidth\leftmarginiii \advance\labelwidth-\labelsep}
-\def\@listiv{\leftmargin\leftmarginiv
-  \labelwidth\leftmarginiv \advance\labelwidth-\labelsep}
-\def\@listv{\leftmargin\leftmarginv
-  \labelwidth\leftmarginv \advance\labelwidth-\labelsep}
-\def\@listvi{\leftmargin\leftmarginvi
-  \labelwidth\leftmarginvi \advance\labelwidth-\labelsep}
-\@ifclasswith{\@classname}{fleqn}{%
-  \let\@tempa\@iden
-  \AtBeginDocument{\mathindent\leftmargini}%
-}{\let\@tempa\@gobble}%
-\@ifpackageloaded{amsmath}{\let\@tempa\@gobble}{%
-  \@ifpackageloaded{amstex}{\let\@tempa\@gobble}{}%
-}
-\@tempa{%
-  \def\[{\relax
-    \ifmmode\@badmath
-    \else
-      \begin{trivlist}%
-      \@beginparpenalty\predisplaypenalty
-      \@endparpenalty\postdisplaypenalty
-      \item[]\leavevmode
-      \hbox to\linewidth\bgroup$\displaystyle
-      \hskip\mathindent\bgroup
-    \fi}%
-  \def\]{\relax
-    \ifmmode
-      \egroup \m@th$\hfil \egroup
-      \end{trivlist}%
-    \else \@badmath
-    \fi}%
-  \renewenvironment{equation}{%
-    \@beginparpenalty\predisplaypenalty
-    \@endparpenalty\postdisplaypenalty
-    \refstepcounter{equation}%
-    \@topsep\abovedisplayskip \trivlist
-    \item[]\leavevmode
-    \hbox to\linewidth\bgroup\hskip\mathindent$\displaystyle
-  }{%
-    \m@th$\hfil \displaywidth\linewidth \hbox{\@eqnnum}\egroup
-    \endtrivlist
-  }%
-  \renewenvironment{eqnarray}{%
-    \stepcounter{equation}\let\@currentlabel\theequation
-    \global\@eqnswtrue \global\@eqcnt\z@ \tabskip\mathindent
-    \let\\=\@eqncr \abovedisplayskip\topsep
-    \ifvmode \advance\abovedisplayskip\partopsep \fi
-    \belowdisplayskip\abovedisplayskip
-    \belowdisplayshortskip\abovedisplayskip
-    \abovedisplayshortskip\abovedisplayskip
-    $$\everycr{}\halign to\linewidth\bgroup
-      \hskip\@centering
-      $\displaystyle\tabskip\z@skip####\m@th$&%
-      \@eqnsel \global\@eqcnt\@ne
-      \hfil${}####{}\m@th$\hfil&%
-      \global\@eqcnt\tw@
-      $\displaystyle ####\m@th$\hfil\tabskip\@centering&%
-      \global\@eqcnt\thr@@
-      \hbox to \z@\bgroup\hss####\egroup\tabskip\z@skip\cr
-    }{%
-      \@@eqncr \egroup \global\advance\c@equation\m@ne$$%
-      \global\@ignoretrue
-    }%
-  \newdimen\mathindent
-  \mathindent\leftmargini
-}
-\def\@startsection#1#2#3#4#5#6{%
- \if@noskipsec \leavevmode \fi
- \par \@tempskipa #4\relax
- \@afterindenttrue
- \ifdim \@tempskipa <\z@ \@tempskipa -\@tempskipa \@afterindentfalse\fi
- \if@nobreak \everypar{}\else
-     \addpenalty\@secpenalty\addvspace\@tempskipa\fi
- \@ifstar{\@dblarg{\@sect{#1}{\@m}{#3}{#4}{#5}{#6}}}%
-         {\@dblarg{\@sect{#1}{#2}{#3}{#4}{#5}{#6}}}%
-}
-\def\@seccntformat#1{%
-  \protect\textup{\protect\@secnumfont
-    \csname the#1\endcsname
-    \protect\@secnumpunct
-  }%
-}
-\let\@secnumfont\@empty
-\def\@sect#1#2#3#4#5#6[#7]#8{%
-  \edef\@toclevel{\ifnum#2=\@m 0\else\number#2\fi}%
-  \ifnum #2>\c@secnumdepth \let\@secnumber\@empty
-  \else \@xp\let\@xp\@secnumber\csname the#1\endcsname\fi
-  \@tempskipa #5\relax
-  \ifnum #2>\c@secnumdepth
-    \let\@svsec\@empty
-  \else
-    \refstepcounter{#1}%
-    \edef\@secnumpunct{%
-      \ifdim\@tempskipa>\z@ % not a run-in section heading
-        \@ifnotempty{#8}{.\@nx\enspace}%
-      \else
-        \@ifempty{#8}{.}{.\@nx\enspace}%
-      \fi
-    }%
-    \protected@edef\@svsec{%
-      \ifnum#2<\@m
-        \@ifundefined{#1name}{}{%
-          \ignorespaces\csname #1name\endcsname\space
-        }%
-      \fi
-      \@seccntformat{#1}%
-    }%
-  \fi
-  \ifdim \@tempskipa>\z@ % then this is not a run-in section heading
-    \begingroup #6\relax
-    \@hangfrom{\hskip #3\relax\@svsec}{\interlinepenalty\@M #8\par}%
-    \endgroup
-  \csname #1mark\endcsname{#7}%
-    \ifnum#2>\@m \else \@tocwrite{#1}{#8}\fi
-  \else
-  \def\@svsechd{#6\hskip #3\@svsec
-    \@ifnotempty{#8}{\ignorespaces#8\unskip
-       \@addpunct.}%
-    \ifnum#2>\@m \else \@tocwrite{#1}{#8}\fi
-  }%
-  \fi
-  \global\@nobreaktrue
-  \@xsect{#5}}
-\let\@ssect\relax
-\newcounter{part}
-\newcounter{chapter}
-\newcounter{section}[chapter]
-\def\thesection{\arabic{section}}
-\newcounter{subsection}[section]
-\newcounter{subsubsection}[subsection]
-\newcounter{paragraph}[subsubsection]
-\newcounter{subparagraph}[paragraph]
-\renewcommand\thepart          {\arabic{part}}
-\renewcommand\thechapter       {\arabic{chapter}}
-\renewcommand\thesection       {\arabic{section}}
-\renewcommand\thesubsection    {\thesection.\arabic{subsection}}
-\renewcommand\thesubsubsection {\thesubsection .\arabic{subsubsection}}
-\renewcommand\theparagraph     {\thesubsubsection.\arabic{paragraph}}
-\renewcommand\thesubparagraph  {\theparagraph.\arabic{subparagraph}}
-\setcounter{secnumdepth}{3}
-\def\partname{Part}
-\def\specialsection{\@startsection{section}{1}%
-  \z@{2\linespacing\@plus\linespacing}{.5\linespacing}%
-  {\large\scshape\centering}}
-\def\part{\cleardoublepage \thispagestyle{empty}%
-  \null\vfil  \markboth{}{}\secdef\@part\@spart}
-\def\@part[#1]#2{%
-  \ifnum \c@secnumdepth >-2\relax \refstepcounter{part}%
-    \addcontentsline{toc}{part}{\partname\ \thepart.
-        \protect\enspace\protect\noindent#1}%
-  \else
-    \addcontentsline{toc}{part}{#1}\fi
-  \begingroup\centering
-  \ifnum \c@secnumdepth >-2\relax
-       {\fontsize{\@xviipt}{22}\bfseries
-         \partname\ \thepart} \vskip 20\p@ \fi
-  \fontsize{\@xxpt}{25}\bfseries
-      #1\vfil\vfil\endgroup \newpage\thispagestyle{empty}}
-
-\def\@spart#1{\addcontentsline{toc}{part}{\protect\noindent#1}%
-  \begingroup\centering
-  \fontsize{\@xxpt}{25}\bfseries
-     #1\vfil\vfil\endgroup \newpage\thispagestyle{empty}}
-\def\partrunhead#1#2#3{%
-  \@ifnotempty{#2}{\uppercase{\ignorespaces#1 #2\unskip}\@ifnotempty{#3}{. }}%
-  \def\@tempa{#3}%
-  \ifx\@empty\@tempa\else
-    \begingroup \def\\{ \ignorespaces}% defend against questionable usage
-    \uppercasenonmath\@tempa\@tempa
-    \endgroup
-  \fi
-}
-\let\chapterrunhead\partrunhead
-\let\sectionrunhead\partrunhead
-\def\section{\@startsection{section}{1}%
-  \z@{.7\linespacing\@plus\linespacing}{.5\linespacing}%
-  {\normalfont\bfseries\centering}}
-\def\subsection{\@startsection{subsection}{2}%
-  \normalparindent{.5\linespacing\@plus.7\linespacing}{-.5em}%
-  {\normalfont\bfseries}}
-\def\subsubsection{\@startsection{subsubsection}{3}%
-  \normalparindent\z@{-.5em}%
-  {\normalfont\itshape}}
-\def\paragraph{\@startsection{paragraph}{4}%
-  \normalparindent\z@{-\fontdimen2\font}%
-  \normalfont}
-\def\subparagraph{\@startsection{subparagraph}{5}%
-  \z@\z@{-\fontdimen2\font}%
-  \normalfont}
-\def\@Roman#1{\@xp\@slowromancap
-  \romannumeral#1@}%
-\def\@slowromancap#1{\ifx @#1% then terminate
-  \else
-    \if i#1I\else\if v#1V\else\if x#1X\else\if l#1L\else\if
-    c#1C\else\if m#1M\else#1\fi\fi\fi\fi\fi\fi
-    \@xp\@slowromancap
-  \fi
-}
-\def\frontmatter{\cleardoublepage\pagenumbering{roman}}
-\def\mainmatter{\cleardoublepage\pagenumbering{arabic}}
-\def\backmatter{%
-  \if@openright\cleardoublepage\else\clearpage\fi
-  \let\chaptername\relax}
-\def\aufm#1{\par\vspace*{12pt}{\flushright #1\par}}
-\newenvironment{xcb}{%
-  \setcounter{enumi}{0}%
-  \settowidth{\leftmargini}{\labelenumi\hskip\labelsep}%
-  \setcounter{enumii}{4}% letter d
-  \settowidth{\leftmarginii}{\labelenumii\hskip\labelsep}%
-  \@startsection{section}% counter name; ignored because of the
-                                % * below
-  {1}% sectioning level
-  {\z@}% indent to the left of the section title
-  {18\p@\@plus2\p@}% vertical space above
-  {1sp}% Space below of 13pt base-to-base, so none needs to be added
-      % here; but \z@ would cause the following text to be run-in, so we
-      % use 1sp instead.
-  {\bfseries}% The font of the subsection title
-  *% always unnumbered
-}{%
-  \par
-}
-\def\chapter{%
-  \if@openright\cleardoublepage\else\clearpage\fi
-  \thispagestyle{plain}\global\@topnum\z@
-  \@afterindenttrue \secdef\@chapter\@schapter}
-\def\@chapter[#1]#2{\refstepcounter{chapter}%
-  \ifnum\c@secnumdepth<\z@ \let\@secnumber\@empty
-  \else \let\@secnumber\thechapter \fi
-  \typeout{\chaptername\space\@secnumber}%
-  \def\@toclevel{0}%
-  \ifx\chaptername\appendixname \@tocwriteb\tocappendix{chapter}{#2}%
-  \else \@tocwriteb\tocchapter{chapter}{#2}\fi
-  \chaptermark{#1}%
-  \addtocontents{lof}{\protect\addvspace{10\p@}}%
-  \addtocontents{lot}{\protect\addvspace{10\p@}}%
-  \@makechapterhead{#2}\@afterheading}
-\def\@schapter#1{\typeout{#1}%
-  \let\@secnumber\@empty
-  \def\@toclevel{0}%
-  \ifx\chaptername\appendixname \@tocwriteb\tocappendix{chapter}{#1}%
-  \else \@tocwriteb\tocchapter{chapter}{#1}\fi
-  \chaptermark{#1}%
-  \addtocontents{lof}{\protect\addvspace{10\p@}}%
-  \addtocontents{lot}{\protect\addvspace{10\p@}}%
-  \@makeschapterhead{#1}\@afterheading}
-\newcommand\chaptername{Chapter}
-\newcommand\appendixname{Appendix}
-\def\@makechapterhead#1{\global\topskip 7.5pc\relax
-  \begingroup
-  \fontsize{\@xivpt}{18}\bfseries\centering
-    \ifnum\c@secnumdepth>\m@ne
-      \leavevmode \hskip-\leftskip
-      \rlap{\vbox to\z@{\vss
-          \centerline{\normalsize\mdseries
-              \uppercase\@xp{\chaptername}\enspace\thechapter}
-          \vskip 3pc}}\hskip\leftskip\fi
-     #1\par \endgroup
-  \skip@34\p@ \advance\skip@-\normalbaselineskip
-  \vskip\skip@ }
-\def\@makeschapterhead#1{\global\topskip 7.5pc\relax
-  \begingroup
-  \fontsize{\@xivpt}{18}\bfseries\centering
-  #1\par \endgroup
-  \skip@34\p@ \advance\skip@-\normalbaselineskip
-  \vskip\skip@ }
-\def\appendix{\par
-  \c@chapter\z@ \c@section\z@
-  \let\chaptername\appendixname
-  \def\thechapter{\@Alph\c@chapter}}
-\newcommand{\@pnumwidth}{1.6em}
-\newcommand{\@tocrmarg}{2.6em}
-\setcounter{tocdepth}{1}
-\newswitch{toc}
-\newswitch{lof}
-\newswitch{lot}
-\def\@starttoc#1#2{%
-  \begingroup
-  \setTrue{#1}%
-  \let\secdef\@gobbletwo \chapter
-  \let\@secnumber\@empty % for \@tocwrite and \chaptermark
-  \ifx\contentsname#2%
-  \else \@tocwrite{chapter}{#2}\fi
-  \typeout{#2}\@xp\chaptermark\@xp{#2}%
-  \@makeschapterhead{#2}\@afterheading
-  \parskip\z@skip
-  \makeatletter
-  \@input{\jobname.#1}%
-  \if@filesw
-    \@xp\newwrite\csname tf@#1\endcsname
-    \immediate\@xp\openout\csname tf@#1\endcsname \jobname.#1\relax
-  \fi
-  \global\@nobreakfalse \endgroup
-  \newpage
-}
-\def\contentsname{Contents}
-\def\listfigurename{List of Figures}
-\def\listtablename{List of Tables}
-\def\tableofcontents{%
-  \@starttoc{toc}\contentsname
-}
-\def\listoffigures{\@starttoc{lof}\listfigurename}
-\def\listoftables{\@starttoc{lot}\listtablename}
-\AtBeginDocument{%
-  \@for\@tempa:=-1,0,1,2,3\do{%
-    \@ifundefined{r@tocindent\@tempa}{%
-      \@xp\gdef\csname r@tocindent\@tempa\endcsname{0pt}}{}%
-  }%
-}
-\def\@writetocindents{%
-  \begingroup
-  \@for\@tempa:=-1,0,1,2,3\do{%
-    \immediate\write\@auxout{%
-      \string\newlabel{tocindent\@tempa}{%
-        \csname r@tocindent\@tempa\endcsname}}%
-  }%
-  \endgroup}
-\AtEndDocument{\@writetocindents}
-
-\let\indentlabel\@empty
-\def\@tochangmeasure#1{\sbox\z@{#1}%
-  \ifdim\wd\z@>\csname r@tocindent\@toclevel\endcsname\relax
-    \@xp\xdef\csname r@tocindent\@toclevel\endcsname{\the\wd\z@}%
-  \fi
-}
-\def\@toclevel{0}
-\def\@tocline#1#2#3#4#5#6#7{\relax
-  \ifnum #1>\c@tocdepth % then omit
-  \else
-    \par \addpenalty\@secpenalty\addvspace{#2}%
-    \begingroup \hyphenpenalty\@M
-    \@ifempty{#4}{%
-      \@tempdima\csname r@tocindent\number#1\endcsname\relax
-    }{%
-      \@tempdima#4\relax
-    }%
-    \parindent\z@ \leftskip#3\relax \advance\leftskip\@tempdima\relax
-    \rightskip\@pnumwidth plus4em \parfillskip-\@pnumwidth
-    #5\leavevmode\hskip-\@tempdima #6\nobreak\relax
-    \hfil\hbox to\@pnumwidth{\@tocpagenum{#7}}\par
-    \nobreak
-    \endgroup
-  \fi}
-\def\@tocpagenum#1{\hss{\mdseries #1}}
-\def\@tocwrite#1{\@xp\@tocwriteb\csname toc#1\endcsname{#1}}
-\def\@tocwriteb#1#2#3{%
-  \begingroup
-    \def\@tocline##1##2##3##4##5##6{%
-      \ifnum##1>\c@tocdepth
-      \else \sbox\z@{##5\let\indentlabel\@tochangmeasure##6}\fi}%
-    \csname l@#2\endcsname{#1{\csname#2name\endcsname}{\@secnumber}{}}%
-  \endgroup
-  \addcontentsline{toc}{#2}%
-    {\protect#1{\csname#2name\endcsname}{\@secnumber}{#3}}}
-\def\l@section{\@tocline{1}{0pt}{1pc}{}{}}
-\newcommand{\tocsection}[3]{%
-  \indentlabel{\@ifnotempty{#2}{\ignorespaces#1 #2.\quad}}#3}
-\def\l@subsection{\@tocline{2}{0pt}{1pc}{5pc}{}}
-\let\tocsubsection\tocsection
-\def\l@subsubsection{\@tocline{3}{0pt}{1pc}{7pc}{}}
-\let\tocsubsubsection\tocsection
-\let\l@paragraph\l@subsubsection
-\let\tocparagraph\tocsection
-\let\l@subparagraph\l@subsubsection
-\let\tocsubparagraph\tocsection
-\def\l@part{\@tocline{-1}{12pt plus2pt}{0pt}{}{\bfseries}}
-\let\tocpart\tocsection
-\def\l@chapter{\@tocline{0}{8pt plus1pt}{0pt}{}{}}
-\let\tocchapter\tocsection
-\newcommand{\tocappendix}[3]{%
-  \indentlabel{#1\@ifnotempty{#2}{ #2}.\quad}#3}
-\def\l@figure{\@tocline{0}{3pt plus2pt}{0pt}{1.5pc}{}}
-\let\l@table=\l@figure
-\def\refname{References}
-\def\bibname{Bibliography}
-\def\@defaultbiblabelstyle#1{#1.}
-\def\bibliographystyle#1{%
-    \if@filesw\immediate\write\@auxout{\string\bibstyle{#1}}\fi
-    \def\@tempa{#1}%
-    \def\@tempb{amsplain}%
-    \def\@tempc{}%
-    \ifx\@tempa\@tempb
-        \def\@biblabel##1{\@defaultbiblabelstyle{##1}}%
-        \def\bibsetup{}%
-    \else
-        \def\bibsetup{\labelsep6\p@}%
-        \ifx\@tempa\@tempc
-            \def\@biblabel##1{}%
-            \def\bibsetup{\labelwidth\z@ \leftmargin24\p@
-                \itemindent-\leftmargin
-                \labelsep\z@ }%
-        \fi
-    \fi}
-\newcommand{\bibliofont}{\footnotesize}
-\newcommand{\@bibtitlestyle}{%
-  \@xp\chapter\@xp*\@xp{\bibname}%
-}
-\newenvironment{thebibliography}[1]{%
-  \@bibtitlestyle
-  \normalfont\bibliofont\labelsep .5em\relax
-  \renewcommand\theenumiv{\arabic{enumiv}}\let\p@enumiv\@empty
-  \list{\@biblabel{\theenumiv}}{\settowidth\labelwidth{\@biblabel{#1}}%
-    \leftmargin\labelwidth \advance\leftmargin\labelsep
-    \usecounter{enumiv}}%
-  \sloppy \clubpenalty\@M \widowpenalty\clubpenalty
-  \sfcode`\.=\@m
-}{%
-  \def\@noitemerr{\@latex@warning{Empty `thebibliography' environment}}%
-  \endlist
-}
-\def\bysame{\leavevmode\hbox to3em{\hrulefill}\thinspace}
-\def\newblock{}
-\newcommand\MR[1]{\relax\ifhmode\unskip\spacefactor3000 \space\fi
-  MR~\MRhref{#1}{#1}}
-\let\MRhref\@gobble
-\newcommand\URL{\begingroup
-  \def\@sverb##1{%
-    \def\@tempa####1##1{\@URL{####1}\egroup\endgroup}%
-    \@tempa}%
-  \verb}
-\let\URLhref\@gobble
-\def\@URL#1{\URLhref{#1}#1}
-\newif\if@restonecol
-\def\indexchap#1{\global\topskip 7.5pc\relax
-  \twocolumn[{\fontsize{\@xivpt}{18}\bfseries\centering
-    \vskip\topskip\hbox{}\vskip-\baselineskip% adjust top space
-    #1\par
-   \global\topskip 34\p@\relax
-   \ifx\@empty\indexintro
-   \else
-     \begingroup \normalsize
-       \skip@\topskip \advance\skip@ -\baselineskip
-       \vskip\skip@
-       \parbox[t]{24pc}{\normalfont\indexintro\par}%
-     \endgroup
-     \global\topskip 24\p@\relax
-   \fi
-  }]%
-}
-\newcommand{\indexintro}{}
-\newcommand{\@indextitlestyle}{%
-  \let\@makeschapterhead\indexchap
-  \@xp\chapter\@xp*\@xp{\indexname}%
-}
-\def\theindex{\@restonecoltrue\if@twocolumn\@restonecolfalse\fi
-  \columnseprule\z@ \columnsep 35\p@
-  \@indextitlestyle
-  \thispagestyle{plain}%
-  \let\item\@idxitem
-  \parindent\z@  \parskip\z@\@plus.3\p@\relax
-  \raggedright
-  \hyphenpenalty\@M
-  \footnotesize}
-\def\indexname{Index}
-\def\@idxitem{\par\hangindent 2em}
-\def\subitem{\par\hangindent 2em\hspace*{1em}}
-\def\subsubitem{\par\hangindent 3em\hspace*{2em}}
-\def\endtheindex{\if@restonecol\onecolumn\else\clearpage\fi}
-\def\indexspace{\par\bigskip}
-\@addtoreset{footnote}{chapter}
-\def\footnoterule{\kern-.4\p@
-        \hrule\@width 5pc\kern11\p@\kern-\footnotesep}
-\def\@makefnmark{%
-  \leavevmode
-  \raise.9ex\hbox{\fontsize\sf@size\z@\normalfont\@thefnmark}%
-}
-\def\@makefntext{\indent\@makefnmark}
-\long\def\@footnotetext#1{%
-  \insert\footins{%
-    \normalfont\footnotesize
-    \interlinepenalty\interfootnotelinepenalty
-    \splittopskip\footnotesep \splitmaxdepth \dp\strutbox
-    \floatingpenalty\@MM \hsize\columnwidth
-    \@parboxrestore \parindent\normalparindent \sloppy
-    \protected@edef\@currentlabel{%
-      \csname p@footnote\endcsname\@thefnmark}%
-    \@makefntext{%
-      \rule\z@\footnotesep\ignorespaces#1\unskip\strut\par}}}
-\hfuzz=1pt \vfuzz=\hfuzz
-\def\sloppy{\tolerance9999 \emergencystretch 3em\relax}
-\setcounter{topnumber}{4}
-\setcounter{bottomnumber}{4}
-\setcounter{totalnumber}{4}
-\setcounter{dbltopnumber}{4}
-\renewcommand{\topfraction}{.97}
-\renewcommand{\bottomfraction}{.97}
-\renewcommand{\textfraction}{.03}
-\renewcommand{\floatpagefraction}{.9}
-\renewcommand{\dbltopfraction}{.97}
-\renewcommand{\dblfloatpagefraction}{.9}
-\setlength{\floatsep}{12pt plus 6pt minus 4pt}
-\setlength{\textfloatsep}{15pt plus 8pt minus 5pt}
-\setlength{\intextsep}{12pt plus 6pt minus 4pt}
-\setlength{\dblfloatsep}{12pt plus 6pt minus 4pt}
-\setlength{\dbltextfloatsep}{15pt plus 8pt minus 5pt}
-\setlength{\@fptop}{0pt}% removed "plus 1fil"
-\setlength{\@fpsep}{8pt}% removed "plus 2fil"
-\setlength{\@fpbot}{0pt plus 1fil}
-\setlength{\@dblfptop}{0pt}% removed "plus 1fil"
-\setlength{\@dblfpsep}{8pt}% removed "plus 2fil"
-\setlength{\@dblfpbot}{0pt plus 1fil}
-\newcommand{\fps@figure}{tbp}
-\newcommand{\fps@table}{tbp}
-\newcounter{figure}[chapter]
-\def\@captionheadfont{\scshape}
-\def\@captionfont{\normalfont}
-\def\ftype@figure{1}
-\def\ext@figure{lof}
-\def\fnum@figure{\figurename\ \thefigure}
-\def\figurename{Figure}
-\newenvironment{figure}{%
-  \@float{figure}%
-}{%
-  \end@float
-}
-\newenvironment{figure*}{%
-  \@dblfloat{figure}%
-}{%
-  \end@dblfloat
-}
-\newcounter{table}[chapter]
-\def\ftype@table{2}
-\def\ext@table{lot}
-\def\fnum@table{\tablename\ \thetable}
-\def\tablename{Table}
-\newenvironment{table}{%
-  \@float{table}%
-}{%
-  \end@float
-}
-\newenvironment{table*}{%
-  \@dblfloat{table}%
-}{%
-  \end@dblfloat
-}
-\def\@floatboxreset{\global\@minipagefalse \centering}
-\long\def\@makecaption#1#2{%
-  \setbox\@tempboxa\vbox{\color@setgroup
-    \advance\hsize-2\captionindent\noindent
-    \@captionfont\@captionheadfont#1\@xp\@ifnotempty\@xp
-        {\@cdr#2\@nil}{.\@captionfont\upshape\enspace#2}%
-    \unskip\kern-2\captionindent\par
-    \global\setbox\@ne\lastbox\color@endgroup}%
-  \ifhbox\@ne % the normal case
-    \setbox\@ne\hbox{\unhbox\@ne\unskip\unskip\unpenalty\unkern}%
-  \fi
-  \ifdim\wd\@tempboxa=\z@ % this means caption will fit on one line
-    \setbox\@ne\hbox to\columnwidth{\hss\kern-2\captionindent\box\@ne\hss}%
-  \else % tempboxa contained more than one line
-    \setbox\@ne\vbox{\unvbox\@tempboxa\parskip\z@skip
-        \noindent\unhbox\@ne\advance\hsize-2\captionindent\par}%
-  \fi
-  \ifnum\@tempcnta<64 % if the float IS a figure...
-    \addvspace\abovecaptionskip
-    \hbox to\hsize{\kern\captionindent\box\@ne\hss}%
-  \else % if the float IS NOT a figure...
-    \hbox to\hsize{\kern\captionindent\box\@ne\hss}%
-    \nobreak
-    \vskip\belowcaptionskip
-  \fi
-\relax
-}
-\newskip\abovecaptionskip \abovecaptionskip=12pt \relax
-\newskip\belowcaptionskip \belowcaptionskip=12pt \relax
-\newdimen\captionindent \captionindent=3pc
-\def\nonbreakingspace{\unskip\nobreak\ \ignorespaces}
-\def~{\protect\nonbreakingspace}
-\def\@biblabel#1{\@ifnotempty{#1}{[#1]}}
-\def\@citestyle{\m@th\upshape\mdseries}
-\def\citeform#1{{\bfseries#1}}
-\def\@cite#1#2{{%
-  \@citestyle[\citeform{#1}\if@tempswa, #2\fi]}}
-\@ifundefined{cite }{%
-  \expandafter\let\csname cite \endcsname\cite
-  \edef\cite{\@nx\protect\@xp\@nx\csname cite \endcsname}%
-}{}
-\def\fullwidthdisplay{\displayindent\z@ \displaywidth\columnwidth}
-\edef\@tempa{\noexpand\fullwidthdisplay\the\everydisplay}
-\everydisplay\expandafter{\@tempa}
-\newcommand*\seeonlyname{see}
-\newcommand*\seename{see also}
-\newcommand*\alsoname{see also}
-\newcommand*\seeonly[2]{\emph{\seeonlyname} #1}
-\newcommand*\see[2]{\emph{\seename} #1}
-\newcommand*\seealso[2]{\emph{\alsoname} #1}
-\newcommand\printindex{\@input{\jobname.ind}}
-\DeclareRobustCommand\textprime{\leavevmode
-  \raise.8ex\hbox{\check@mathfonts\the\scriptfont2 \char48 }}
-\def\maketitle{\par
-  \@topnum\z@ % this prevents figures from falling at the top of page 1
-  \begingroup
-  \@maketitle
-  \endgroup
-  \c@footnote\z@
-  \def\do##1{\let##1\relax}%
-  \do\maketitle \do\@maketitle \do\title \do\@xtitle \do\@title
-  \do\author \do\@xauthor \do\address \do\@xaddress
-  \do\email \do\@xemail \do\curraddr \do\@xcurraddr
-  \do\dedicatory \do\@dedicatory \do\thanks \do\thankses
-  \do\keywords \do\@keywords \do\subjclass \do\@subjclass
-}
-\def\@maketitle{%
-  \cleardoublepage \thispagestyle{empty}%
-  \begingroup \topskip\z@skip
-  \null\vfil
-  \begingroup
-  \LARGE\bfseries \centering
-  \openup\medskipamount
-  \@title\par\vspace{24pt}%
-  \def\and{\par\medskip}\centering
-  \mdseries\authors\par\bigskip
-  \endgroup
-  \vfil
-  \ifx\@empty\addresses \else \@setaddresses \fi
-  \vfil
-  \ifx\@empty\@dedicatory
-  \else \begingroup
-    \centering{\footnotesize\itshape\@dedicatory\@@par}%
-    \endgroup
-  \fi
-  \vfill
-  \newpage\thispagestyle{empty}
-  \begin{center}
-    \ifx\@empty\@subjclass\else\@setsubjclass\fi
-    \ifx\@empty\@keywords\else\@setkeywords\fi
-    \ifx\@empty\@translators\else\vfil\@settranslators\fi
-    \ifx\@empty\thankses\else\vfil\@setthanks\fi
-  \end{center}
-  \vfil
-  \@setabstract
-  \endgroup}
-\def\@settranslators{\par
-  \begingroup
-  \translname: \andify\@translators \uppercasenonmath\@translators
-  \@translators \@@par
-  \endgroup}
-\def\@setdate{\par\smallskip\@date\par\smallskip}
-\def\@setsubjclass{\par\smallskip
-  {\itshape\subjclassname.}\enspace\@subjclass\par\smallskip}
-\def\@setkeywords{\par\smallskip
-  {\itshape \keywordsname.}\enspace \@keywords\par\smallskip}
-
-\newcommand{\theoremstyle}[1]{%
-  \@ifundefined{th@#1}{%
-    \PackageWarning{amsthm}{Unknown theoremstyle `#1'}%
-    \thm@style{plain}%
-  }{%
-    \thm@style{#1}%
-  }%
-}
-\newtoks\thm@style
-\thm@style{plain}
-\newtoks\thm@bodyfont  \thm@bodyfont{\itshape}
-\newtoks\thm@headfont  \thm@headfont{\bfseries}
-\newtoks\thm@notefont  \thm@notefont{}
-\newtoks\thm@headpunct \thm@headpunct{.}
-\newskip\thm@preskip \newskip\thm@postskip
-\def\thm@space@setup{%
-  \thm@preskip=.5\baselineskip\@plus.2\baselineskip
-                             \@minus.2\baselineskip
-  \thm@postskip=\thm@preskip
-}
-\renewcommand{\newtheorem}{\@ifstar{\@xnthm *}{\@xnthm \relax}}
-\def\@xnthm#1#2{%
-  \let\@tempa\relax
-  \@xp\@ifdefinable\csname #2\endcsname{%
-    \global\@xp\let\csname end#2\endcsname\@endtheorem
-    \ifx *#1% unnumbered, need to get one more mandatory arg
-      \edef\@tempa##1{%
-        \gdef\@xp\@nx\csname#2\endcsname{%
-          \@nx\@thm{\@xp\@nx\csname th@\the\thm@style\endcsname}%
-            {}{##1}}}%
-    \else % numbered theorem, need to check for optional arg
-      \def\@tempa{\@oparg{\@ynthm{#2}}[]}%
-    \fi
-  }%
-  \@tempa
-}
-\def\@ynthm#1[#2]#3{%
-  \ifx\relax#2\relax
-    \def\@tempa{\@oparg{\@xthm{#1}{#3}}[]}%
-  \else
-    \@ifundefined{c@#2}{%
-      \def\@tempa{\@nocounterr{#2}}%
-    }{%
-      \@xp\xdef\csname the#1\endcsname{\@xp\@nx\csname the#2\endcsname}%
-      \toks@{#3}%
-      \@xp\xdef\csname#1\endcsname{%
-        \@nx\@thm{%
-          \let\@nx\thm@swap
-            \if S\thm@swap\@nx\@firstoftwo\else\@nx\@gobble\fi
-          \@xp\@nx\csname th@\the\thm@style\endcsname}%
-            {#2}{\the\toks@}}%
-      \let\@tempa\relax
-    }%
-  \fi
-  \@tempa
-}
-\def\@xthm#1#2[#3]{%
-  \ifx\relax#3\relax
-    \newcounter{#1}%
-  \else
-    \newcounter{#1}[#3]%
-    \@xp\xdef\csname the#1\endcsname{\@xp\@nx\csname the#3\endcsname
-      \@thmcountersep\@thmcounter{#1}}%
-  \fi
-  \toks@{#2}%
-  \@xp\xdef\csname#1\endcsname{%
-    \@nx\@thm{%
-      \let\@nx\thm@swap
-        \if S\thm@swap\@nx\@firstoftwo\else\@nx\@gobble\fi
-      \@xp\@nx\csname th@\the\thm@style\endcsname}%
-      {#1}{\the\toks@}}%
-}
-\def\@thm#1#2#3{%
-  \ifhmode\unskip\unskip\par\fi
-  \normalfont
-  \trivlist
-  \let\thmheadnl\relax
-  \let\thm@swap\@gobble
-  \let\thm@indent\indent % indent
-  \thm@headfont{\scshape}% heading font small caps
-  \thm@notefont{\fontseries\mddefault\upshape}%
-  \thm@headpunct{.}% add period after heading
-  \thm@headsep 5\p@ plus\p@ minus\p@\relax
-  \thm@space@setup
-  #1% style overrides
-  \@topsep \thm@preskip               % used by thm head
-  \@topsepadd \thm@postskip           % used by \@endparenv
-  \def\@tempa{#2}\ifx\@empty\@tempa
-    \def\@tempa{\@oparg{\@begintheorem{#3}{}}[]}%
-  \else
-    \refstepcounter{#2}%
-    \def\@tempa{\@oparg{\@begintheorem{#3}{\csname the#2\endcsname}}[]}%
-  \fi
-  \@tempa
-}
-\def\@restorelabelsep{\relax}
-\let\@ythm\relax
-\let\thmname\@iden \let\thmnote\@iden \let\thmnumber\@iden
-\providecommand\@upn{\textup}
-\def\thmhead@plain#1#2#3{%
-  \thmname{#1}\thmnumber{\@ifnotempty{#1}{ }\@upn{#2}}%
-  \thmnote{ {\the\thm@notefont(#3)}}}
-\let\thmhead\thmhead@plain
-\def\swappedhead#1#2#3{%
-  \thmnumber{\@upn{\@secnumfont#2\@ifnotempty{#1}{.~}}}%
-  \thmname{#1}%
-  \thmnote{ {\the\thm@notefont(#3)}}}
-\let\swappedhead@plain=\swappedhead
-\let\thmheadnl\relax
-\let\thm@indent\noindent
-\let\thm@swap\@gobble
-\def\@begintheorem#1#2[#3]{%
-  \deferred@thm@head{\the\thm@headfont \thm@indent
-    \@ifempty{#1}{\let\thmname\@gobble}{\let\thmname\@iden}%
-    \@ifempty{#2}{\let\thmnumber\@gobble}{\let\thmnumber\@iden}%
-    \@ifempty{#3}{\let\thmnote\@gobble}{\let\thmnote\@iden}%
-    \thm@swap\swappedhead\thmhead{#1}{#2}{#3}%
-    \the\thm@headpunct
-    \thmheadnl % possibly a newline.
-    \hskip\thm@headsep
-  }%
-  \ignorespaces}
-\newskip\thm@headsep
-\thm@headsep=5pt plus1pt minus1pt\relax
-\let\adjust@parskip@nobreak=\@nbitem
-\newtoks\dth@everypar
-\dth@everypar={%
-  \@minipagefalse \global\@newlistfalse
-  \@noparitemfalse
-  \if@inlabel
-    \global\@inlabelfalse
-    \begingroup \setbox\z@\lastbox
-     \ifvoid\z@ \kern-\itemindent \fi
-    \endgroup
-    \unhbox\@labels
-  \fi
-  \if@nobreak \@nobreakfalse \clubpenalty\@M
-  \else \clubpenalty\@clubpenalty \everypar{}%
-  \fi
-}%
-\def\deferred@thm@head#1{%
-  \if@inlabel \indent \par \fi % eject a section head if one is pending
-  \if@nobreak
-    \adjust@parskip@nobreak
-  \else
-    \addpenalty\@beginparpenalty
-    \addvspace\@topsep
-    \addvspace{-\parskip}%
-  \fi
-  \global\@inlabeltrue
-  \everypar\dth@everypar
-  \sbox\@labels{\normalfont#1}%
-  \ignorespaces
-}
-\def\nonslanted{\relax
-  \@xp\let\@xp\@tempa\csname\f@shape shape\endcsname
-  \ifx\@tempa\itshape\upshape
-  \else\ifx\@tempa\slshape\upshape\fi\fi}
-\def\swapnumbers{\edef\thm@swap{\if S\thm@swap N\else S\fi}}
-\def\thm@swap{N}%
-\let\@opargbegintheorem\relax
-\def\th@plain{%
-%%  \let\thm@indent\noindent % no indent
-%%  \thm@headfont{\bfseries}% heading font is bold
-%%  \thm@notefont{}% same as heading font
-%%  \thm@headpunct{.}% add period after heading
-%%  \let\thm@swap\@gobble
-%%  \thm@preskip\topsep
-%%  \thm@postskip\theorempreskipamount
-  \itshape % body font
-}
-\def\th@definition{%
-  \normalfont % body font
-}
-\def\th@remark{%
-  \normalfont % body font
-}
-\def\@endtheorem{\endtrivlist\@endpefalse }
-\newcommand{\newtheoremstyle}[9]{%
-  \@ifempty{#5}{\dimen@\z@skip}{\dimen@#5\relax}%
-  \ifdim\dimen@=\z@
-    \toks@{#4\let\thm@indent\noindent}%
-  \else
-    \toks@{#4\def\thm@indent{\noindent\hbox to#5{}}}%
-  \fi
-  \def\@tempa{#8}\ifx\space\@tempa
-    \toks@\@xp{\the\toks@ \thm@headsep\fontdimen\tw@\font\relax}%
-  \else
-    \def\@tempb{\newline}%
-    \ifx\@tempb\@tempa
-      \toks@\@xp{\the\toks@ \thm@headsep\z@skip
-        \def\thmheadnl{\newline}}%
-    \else
-      \toks@\@xp{\the\toks@ \thm@headsep#8\relax}%
-    \fi
-  \fi
-  \begingroup
-  \thm@space@setup
-  \@defaultunits\@tempskipa#2\thm@preskip\relax\@nnil
-  \@defaultunits\@tempskipb#3\thm@postskip\relax\@nnil
-  \xdef\@gtempa{\thm@preskip\the\@tempskipa
-    \thm@postskip\the\@tempskipb\relax}%
-  \endgroup
-  \@temptokena\@xp{\@gtempa
-    \thm@headfont{#6}\thm@headpunct{#7}%
-  }%
-  \@ifempty{#9}{%
-    \let\thmhead\thmhead@plain
-  }{%
-    \@namedef{thmhead@#1}##1##2##3{#9}%
-    \@temptokena\@xp{\the\@temptokena
-      \@xp\let\@xp\thmhead\csname thmhead@#1\endcsname}%
-  }%
-  \@xp\xdef\csname th@#1\endcsname{\the\toks@ \the\@temptokena}%
-}
-\DeclareRobustCommand{\qed}{%
-  \ifmmode \mathqed
-  \else
-    \leavevmode\unskip\penalty9999 \hbox{}\nobreak\hfill
-    \quad\hbox{\qedsymbol}%
-  \fi
-}
-\let\QED@stack\@empty
-\let\qed@elt\relax
-\newcommand{\pushQED}[1]{%
-  \toks@{\qed@elt{#1}}\@temptokena\expandafter{\QED@stack}%
-  \xdef\QED@stack{\the\toks@\the\@temptokena}%
-}
-\newcommand{\popQED}{%
-  \begingroup\let\qed@elt\popQED@elt \QED@stack\relax\relax\endgroup
-}
-\def\popQED@elt#1#2\relax{#1\gdef\QED@stack{#2}}
-\newcommand{\qedhere}{%
-  \begingroup \let\mathqed\math@qedhere
-    \let\qed@elt\setQED@elt \QED@stack\relax\relax \endgroup
-}
-\newif\ifmeasuring@
-\newif\iffirstchoice@ \firstchoice@true
-\def\setQED@elt#1#2\relax{%
-  \ifmeasuring@
-  \else \iffirstchoice@ \gdef\QED@stack{\qed@elt{}#2}\fi
-  \fi
-  #1%
-}
-\def\qed@warning{%
-  \PackageWarning{amsthm}{The \@nx\qedhere command may not work
-    correctly here}%
-}
-\newcommand{\mathqed}{\quad\hbox{\qedsymbol}}
-\def\linebox@qed{\hfil\hbox{\qedsymbol}\hfilneg}
-\@ifpackageloaded{amsmath}{%
-  \def\math@qedhere{%
-    \@ifundefined{\@currenvir @qed}{%
-      \qed@warning\quad\hbox{\qedsymbol}%
-    }{%
-      \@xp\aftergroup\csname\@currenvir @qed\endcsname
-    }%
-  }
-  \def\displaymath@qed{%
-    \relax
-    \ifmmode
-      \ifinner \aftergroup\linebox@qed
-      \else
-        \eqno
-        \let\eqno\relax \let\leqno\relax \let\veqno\relax
-        \hbox{\qedsymbol}%
-      \fi
-    \else
-       \aftergroup\linebox@qed
-    \fi
-  }
-  \@xp\let\csname equation*@qed\endcsname\displaymath@qed
-  \def\equation@qed{%
-    \iftagsleft@
-      \hbox{\phantom{\quad\qedsymbol}}%
-      \gdef\alt@tag{%
-        \rlap{\hbox to\displaywidth{\hfil\qedsymbol}}%
-        \global\let\alt@tag\@empty
-      }%
-    \else
-      \gdef\alt@tag{%
-        \global\let\alt@tag\@empty
-        \vtop{\ialign{\hfil####\cr
-                \tagform@\theequation\cr
-                \qedsymbol\cr}}%
-        \setbox\z@
-      }%
-    \fi
-  }
-  \def\qed@tag{%
-    \global\tag@true \nonumber
-    &\omit\setboxz@h {\strut@ \qedsymbol}\tagsleft@false
-    \place@tag@gather
-    \kern-\tabskip
-    \ifst@rred \else \global\@eqnswtrue \fi \global\advance\row@\@ne \cr
-  }
-  \def\split@qed{%
-    \def\endsplit{\crcr\egroup \egroup \ctagsplit@false \rendsplit@
-      \aftergroup\align@qed
-    }%
-  }
-  \def\align@qed{%
-    \ifmeasuring@ \tag*{\qedsymbol}%
-    \else \let\math@cr@@@\qed@tag
-    \fi
-  }
-  \@xp\let\csname align*@qed\endcsname\align@qed
-  \@xp\let\csname gather*@qed\endcsname\align@qed
-%% Needs some patching up for amsmath 1.2
-}{% end of amsmath branch, start plain LaTeX branch
-  \def\math@qedhere{%
-    \@ifundefined{\@currenvir @qed}{%
-      \qed@warning \aftergroup\displaymath@qed
-    }{%
-      \@xp\aftergroup\csname\@currenvir @qed\endcsname
-    }%
-  }
-  \def\displaymath@qed{%
-    \relax
-    \ifmmode
-      \ifinner \aftergroup\aftergroup\aftergroup\linebox@qed
-      \else
-        \eqno \def\@badmath{$$}%
-        \let\eqno\relax \let\leqno\relax \let\veqno\relax
-        \hbox{\qedsymbol}%
-      \fi
-    \else
-       \aftergroup\linebox@qed
-    \fi
-  }
-  \@ifundefined{ver@leqno.clo}{%
-    \def\equation@qed{\displaymath@qed \quad}%
-  }{%
-    \def\equation@qed{\displaymath@qed}%
-  }
-  \def\@tempa#1$#2#3\@nil{%
-    \def\[{#1$#2\def\@currenvir{displaymath}#3}%
-  }%
-  \expandafter\@tempa\[\@nil
-}
-\@ifpackageloaded{amstex}{%
-  \def\@tempa{TT}%
-}{%
-  \@ifpackageloaded{amsmath}{%
-    \def\@tempb#1 v#2.#3\@nil{#2}%
-    \ifnum\@xp\@xp\@xp\@tempb\csname ver@amsmath.sty\endcsname v0.0\@nil
-       <\tw@
-      \def\@tempa{TT}%
-    \else
-      \def\@tempa{TF}%
-    \fi
-  }{%
-    \def\@tempa{TF}
-  }%
-}
-\if\@tempa
-  \renewcommand{\math@qedhere}{\quad\hbox{\qedsymbol}}%
-\fi
-\newcommand{\openbox}{\leavevmode
-  \hbox to.77778em{%
-  \hfil\vrule
-  \vbox to.675em{\hrule width.6em\vfil\hrule}%
-  \vrule\hfil}}
-\DeclareRobustCommand{\textsquare}{%
-  \begingroup \usefont{U}{msa}{m}{n}\thr@@\endgroup
-}
-\@ifclasswith{\@classname}{noamsfonts}{%
-  \providecommand{\qedsymbol}{\openbox}%
-}{}
-\providecommand{\qedsymbol}{\textsquare}
-\newenvironment{proof}[1][\proofname]{\par
-  \pushQED{\qed}%
-  \normalfont \topsep6\p@\@plus6\p@\relax
-  \trivlist
-  \itemindent\normalparindent
-  \item[\hskip\labelsep
-        \scshape
-    #1\@addpunct{.}]\ignorespaces
-}{%
-  \popQED\endtrivlist\@endpefalse
-}
-\providecommand{\proofname}{Proof}
-\def\bb@skip#1{%
-  \skip@#1\relax \advance\skip@-\prevdepth \advance\skip@-\baselineskip
-  \vskip\skip@}
-\def\markleft#1{{\let\protect\noexpand
-    \let\label\relax \let\index\relax \let\glossary\relax
-    \expandafter\@markleft\@themark{#1}%
-    \mark{\@themark}}%
-  \if@nobreak\ifvmode\nobreak\fi\fi}
-\def\@markleft#1#2#3{\gdef\@themark{{#3}{#2}}}
-\def\@tempa{}
-\edef\@dh{%
-  \noexpand\mathhexbox{\hexnumber@\symAMSb}67}
-\DeclareTextCommand{\dh}{OT1}{%
-  \edef\@tempb{\scdefault}%
-  \ifx\f@shape\@tempb
-    \leavevmode
-    \raisebox{-.8ex}{\makebox[\z@][l]{\hskip-.08em\accent"16\hss}}d%
-  \else
-    \@dh
-  \fi
-}
-\DeclareTextCommand{\DH}{OT1}{%
-  \leavevmode\raisebox{-.5ex}{\makebox[\z@][l]{\hskip-.07em\accent"16\hss}}D}
-\DeclareTextCommand{\DJ}{OT1}{%
-  \leavevmode\raisebox{-.5ex}{\makebox[\z@][l]{\hskip-.07em\accent"16\hss}}D}
-\DeclareTextCommand{\dj}{OT1}{%
-  \edef\@tempa{\f@shape}\edef\@tempb{\scdefault}%
-  \ifx\@tempa\@tempb
-    \leavevmode
-    \raisebox{-.75ex}{\makebox[\z@][l]{\hskip-.08em\accent"16\hss}}d%
-  \else
-    \leavevmode\raisebox{.02ex}{\makebox[\z@][l]{\hskip.1em\accent"16\hss}}d%
-  \fi}
-\hyphenation{acad-e-my acad-e-mies af-ter-thought anom-aly anom-alies
-an-ti-deriv-a-tive an-tin-o-my an-tin-o-mies apoth-e-o-ses
-apoth-e-o-sis ap-pen-dix ar-che-typ-al as-sign-a-ble as-sist-ant-ship
-as-ymp-tot-ic asyn-chro-nous at-trib-uted at-trib-ut-able bank-rupt
-bank-rupt-cy bi-dif-fer-en-tial blue-print busier busiest
-cat-a-stroph-ic cat-a-stroph-i-cally con-gress cross-hatched data-base
-de-fin-i-tive de-riv-a-tive dis-trib-ute dri-ver dri-vers eco-nom-ics
-econ-o-mist elit-ist equi-vari-ant ex-quis-ite ex-tra-or-di-nary
-flow-chart for-mi-da-ble forth-right friv-o-lous ge-o-des-ic
-ge-o-det-ic geo-met-ric griev-ance griev-ous griev-ous-ly
-hexa-dec-i-mal ho-lo-no-my ho-mo-thetic ideals idio-syn-crasy
-in-fin-ite-ly in-fin-i-tes-i-mal ir-rev-o-ca-ble key-stroke
-lam-en-ta-ble light-weight mal-a-prop-ism man-u-script mar-gin-al
-meta-bol-ic me-tab-o-lism meta-lan-guage me-trop-o-lis
-met-ro-pol-i-tan mi-nut-est mol-e-cule mono-chrome mono-pole
-mo-nop-oly mono-spline mo-not-o-nous mul-ti-fac-eted mul-ti-plic-able
-non-euclid-ean non-iso-mor-phic non-smooth par-a-digm par-a-bol-ic
-pa-rab-o-loid pa-ram-e-trize para-mount pen-ta-gon phe-nom-e-non
-post-script pre-am-ble pro-ce-dur-al pro-hib-i-tive pro-hib-i-tive-ly
-pseu-do-dif-fer-en-tial pseu-do-fi-nite pseu-do-nym qua-drat-ic
-quad-ra-ture qua-si-smooth qua-si-sta-tion-ary qua-si-tri-an-gu-lar
-quin-tes-sence quin-tes-sen-tial re-arrange-ment rec-tan-gle
-ret-ri-bu-tion retro-fit retro-fit-ted right-eous right-eous-ness
-ro-bot ro-bot-ics sched-ul-ing se-mes-ter semi-def-i-nite
-semi-ho-mo-thet-ic set-up se-vere-ly side-step sov-er-eign spe-cious
-spher-oid spher-oid-al star-tling star-tling-ly sta-tis-tics
-sto-chas-tic straight-est strange-ness strat-a-gem strong-hold
-sum-ma-ble symp-to-matic syn-chro-nous topo-graph-i-cal tra-vers-a-ble
-tra-ver-sal tra-ver-sals treach-ery turn-around un-at-tached
-un-err-ing-ly white-space wide-spread wing-spread wretch-ed
-wretch-ed-ly Eng-lish Euler-ian Feb-ru-ary Gauss-ian
-Hamil-ton-ian Her-mit-ian Jan-u-ary Japan-ese Kor-te-weg
-Le-gendre Mar-kov-ian Noe-ther-ian No-vem-ber Rie-mann-ian Sep-tem-ber}
-\def\calclayout{\advance\textheight -\headheight
-  \advance\textheight -\headsep
-  \oddsidemargin\paperwidth
-  \advance\oddsidemargin -\textwidth
-  \divide\oddsidemargin\tw@
-  \ifdim\oddsidemargin<.5truein \oddsidemargin.5truein \fi
-  \advance\oddsidemargin -1truein
-  \evensidemargin\oddsidemargin
-  \topmargin\paperheight \advance\topmargin -\textheight
-  \advance\topmargin -\headheight \advance\topmargin -\headsep
-  \divide\topmargin\tw@
-  \ifdim\topmargin<.5truein \topmargin.5truein \fi
-  \advance\topmargin -1truein\relax
-}
-\InputIfFileExists{amsbook.cfg}{}{%
-  \calclayout % initialize
-  \pagenumbering{arabic}%
-  \pagestyle{headings}%
-  \thispagestyle{plain}%
-}
-\if@compatibility \else\endinput\fi
-\def\tiny{\Tiny}
-\def\defaultfont{\normalfont}
-\def\rom{\textup}
-\let\@newpf\proof \let\proof\relax \let\endproof\relax
-\newenvironment{pf}{\@newpf[\proofname]}{\popQED\endtrivlist}
-\newenvironment{pf*}[1]{\@newpf[#1]}{\popQED\endtrivlist}
-\endinput
-%%
-%% End of file `amsbook.cls'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/amsbooka.sty b/Master/texmf-dist/tex/latex/amslatex/amsbooka.sty
deleted file mode 100644
index 3f7ff73dbaa..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/amsbooka.sty
+++ /dev/null
@@ -1,151 +0,0 @@
-%%
-%% This is file `amsbooka.sty',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsbooka.dtx 
-%% 
-%%% ====================================================================
-%%%  @LaTeX-file{
-%%%     filename  = "amsbooka.dtx",
-%%%     version   = "2.01",
-%%%     date      = "2003/02/28",
-%%%     time      = "14:12:49 EST",
-%%%     author    = "American Mathematical Society",
-%%%     copyright = "Copyright 1995, 1999 American Mathematical Society,
-%%%                  all rights reserved.  Copying of this file is
-%%%                  authorized only if either:
-%%%                  (1) you make absolutely no changes to your copy,
-%%%                  including name; OR
-%%%                  (2) if you do make changes, you first rename it
-%%%                  to some other name.",
-%%%     address   = "American Mathematical Society,
-%%%                  Technical Support,
-%%%                  Electronic Products and Services,
-%%%                  P. O. Box 6248,
-%%%                  Providence, RI 02940,
-%%%                  USA",
-%%%     telephone = "401-455-4080 or (in the USA and Canada)
-%%%                  800-321-4AMS (321-4267)",
-%%%     FAX       = "401-331-3842",
-%%%     checksum  = "63139 257 945 8723",
-%%%     email     = "tech-support@ams.org (Internet)",
-%%%     codetable = "ISO/ASCII",
-%%%     keywords  = "latex, amslatex, ams-latex, monograph",
-%%%     supported = "yes",
-%%%     abstract  = "This is part of the AMS-\LaTeX{} distribution.
-%%%                  It contains code to augment the AMS-LaTeX{}
-%%%                  monograph document classes, providing the ability
-%%%                  to include an author's name along with a chapter
-%%%                  title, and to pass the author information along
-%%%                  for inclusion in the table of contents",
-%%%     docstring = "The checksum field above contains a CRC-16
-%%%                  checksum as the first value, followed by the
-%%%                  equivalent of the standard UNIX wc (word
-%%%                  count) utility output of lines, words, and
-%%%                  characters.  This is produced by Robert
-%%%                  Solovay's checksum utility.",
-%%%  }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1994/12/01]% LaTeX date must December 1994 or later
-\ProvidesPackage{amsbooka}[2003/02/28 v2.01 monograph chapter authors]
-\def\@gsm{gsm-l}
-\def\@stml{stml-l}
-\def\@makechapterhead#1{%
-  \ifx\@classname\@gsm \@makegsmchapterhead{#1}%
-  \else \ifx\@classname\@stml \@makestmlchapterhead{#1}%
-  \else \@makeplainchapterhead{#1}%
-  \fi \fi
-}
-\def\@makeplainchapterhead#1{%
-  \global\topskip 7.5pc\relax
-  \begingroup
-  \def\title{}%
-  \def\author##1{\vskip1pc\fontsize{\@xiipt}{14}\mdseries\textsc{##1}}%
-  \fontsize{\@xivpt}{18}\bfseries\centering
-    \ifnum\c@secnumdepth>\m@ne
-      \leavevmode \hskip-\leftskip
-      \rlap{\vbox to\z@{\vss
-          \centerline{\normalsize\mdseries
-              \uppercase\@xp{\chaptername}\enspace\thechapter}
-          \vskip 3pc}}\hskip\leftskip\fi
-     #1\par \endgroup
-  \skip@34\p@ \advance\skip@-\normalbaselineskip
-  \vskip\skip@ }
-\def\@makeruledchapterhead#1{%
-  \global\topskip\normaltopskip
-  \begingroup
-  \def\author##1{\\ \hfil \\ \@chapauthorstyle ##1}%
-  \vbox to\topskip{%
-    \chapter@number
-    \vss
-  }\penalty\@M
-  \@chapheadstyle \raggedright
-  \noindent #1\par \endgroup
-  \if@index
-    \@indexstyle
-  \else
-      \@dropfolio
-      \@noindexstyle
-  \fi
-  \@afterheading
-}
-\def\@makegsmchapterhead#1{%
-  \def\@chapheadstyle{\Huge\bfseries \hsize24pc
-    \top@space{11pc}}%
-  \def\@chapauthorstyle{\LARGE\bfseries}%
-  \def\@indexstyle{%
-    \ifx\@empty\indexintro
-      \bb@space{7.5pc}%
-    \else
-      \vspace{3pc}%
-      \begingroup \small
-        \parbox[t]{27pc}{\leftskip3pc\normalfont\indexintro\par}%
-      \endgroup
-      \bb@space{3pc}%
-    \fi
-    }%
-  \def\@noindexstyle{\bb@space{7.5pc}}%
- \@makeruledchapterhead{#1}%
-  }
-\def\@makestmlchapterhead#1{%
-  \def\@chapheadstyle{\fontsize\@xxpt{22}\selectfont\bfseries\hsize 21pc
-    \top@par@space{9pc}}%
-  \def\@chapauthorstyle{\LARGE\mdseries}%
-  \def\@indexstyle{%
-    \ifx\@empty\indexintro
-      \bb@par@space{6.5pc}%
-    \else
-      \vspace{2.5pc}%
-      \begingroup \small
-        \parbox[t]{22.5pc}{\leftskip2.5pc\normalfont\indexintro\par}%
-      \endgroup
-      \bb@par@space{2.5pc}%
-    \fi
-    }%
-  \def\@noindexstyle{\bb@par@space{6.5pc}}%
-  \@makeruledchapterhead{#1}%
-  }
-\def\@tocline#1#2#3#4#5#6#7{\relax
-  \ifnum #1>\c@tocdepth % then omit
-  \else
-    \def\author##1{\newline\textsc{##1}}%
-    \par \addpenalty\@secpenalty\addvspace{#2}%
-    \begingroup \hyphenpenalty\@M
-    \@ifempty{#4}{%
-      \@tempdima\csname r@tocindent\number#1\endcsname\relax
-    }{%
-      \@tempdima#4\relax
-    }%
-    \parindent\z@ \leftskip#3\relax \advance\leftskip\@tempdima\relax
-    \rightskip\@pnumwidth plus4em \parfillskip-\@pnumwidth
-    #5\leavevmode\hskip-\@tempdima #6\nobreak\relax
-    \hfil\hbox to\@pnumwidth{\@tocpagenum{#7}}\par
-    \nobreak
-    \endgroup
-  \fi}
-\endinput
-%%
-%% End of file `amsbooka.sty'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/amsbsy.sty b/Master/texmf-dist/tex/latex/amslatex/amsbsy.sty
deleted file mode 100644
index 0e64d1b2e28..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/amsbsy.sty
+++ /dev/null
@@ -1,98 +0,0 @@
-%%
-%% This is file `amsbsy.sty',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsbsy.dtx 
-%% 
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsbsy.dtx",
-%%%   version   = "1.2d",
-%%%   date      = "1999/11/29",
-%%%   time      = "14:26:42 EST",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Electronic Products and Services,
-%%%                P. O. Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   checksum  = "08988 251 1238 9625",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, bold symbol, pmb",
-%%%   supported = "yes",
-%%%   abstract  = "This is a \LaTeX{} package that provides a command
-%%%                for producing bold math symbols when appropriate
-%%%                fonts exist, and a `poor man's bold' command that
-%%%                can be applied when no appropriate bold font
-%%%                is available.",
-%%%   docstring = "The checksum field above contains a CRC-16
-%%%                checksum as the first value, followed by the
-%%%                equivalent of the standard UNIX wc (word
-%%%                count) utility output of lines, words, and
-%%%                characters.  This is produced by Robert
-%%%                Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1994/12/01]% LaTeX date must December 1994 or later
-\ProvidesPackage{amsbsy}[1999/11/29 v1.2d]
-\RequirePackage{amsgen}
-\DeclareRobustCommand{\boldsymbol}[1]{%
-  \begingroup
-  \let\@nomath\@gobble \mathversion{bold}%
-  \math@atom{#1}{%
-  \mathchoice%
-    {\hbox{$\m@th\displaystyle#1$}}%
-    {\hbox{$\m@th\textstyle#1$}}%
-    {\hbox{$\m@th\scriptstyle#1$}}%
-    {\hbox{$\m@th\scriptscriptstyle#1$}}}%
-  \endgroup}
-\def\math@atom#1#2{%
-   \binrel@{#1}\binrel@@{#2}}
-\DeclareRobustCommand{\pmb}{%
-  \ifmmode\else \expandafter\pmb@@\fi\mathpalette\pmb@}
-\def\pmb@@#1#2#3{\leavevmode\setboxz@h{#3}%
-   \dimen@-\wdz@
-   \kern-.5\ex@\copy\z@
-   \kern\dimen@\kern.25\ex@\raise.4\ex@\copy\z@
-   \kern\dimen@\kern.25\ex@\box\z@
-}
-\newdimen\pmbraise@
-\def\pmb@#1#2{\setbox8\hbox{$\m@th#1{#2}$}%
-  \setboxz@h{$\m@th#1\mkern.5mu$}\pmbraise@\wdz@
-  \binrel@{#2}%
-  \dimen@-\wd8 %
-  \binrel@@{%
-    \mkern-.8mu\copy8 %
-    \kern\dimen@\mkern.4mu\raise\pmbraise@\copy8 %
-    \kern\dimen@\mkern.4mu\box8 }%
-}
-\def\binrel@#1{\begingroup
-  \setboxz@h{\thinmuskip0mu
-    \medmuskip\m@ne mu\thickmuskip\@ne mu
-    \setbox\tw@\hbox{$#1\m@th$}\kern-\wd\tw@
-    ${}#1{}\m@th$}%
-  \edef\@tempa{\endgroup\let\noexpand\binrel@@
-    \ifdim\wdz@<\z@ \mathbin
-    \else\ifdim\wdz@>\z@ \mathrel
-    \else \relax\fi\fi}%
-  \@tempa
-}
-\let\binrel@@\relax
-\endinput
-%%
-%% End of file `amsbsy.sty'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/amscd.sty b/Master/texmf-dist/tex/latex/amslatex/amscd.sty
deleted file mode 100644
index d45fc2c7b65..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/amscd.sty
+++ /dev/null
@@ -1,171 +0,0 @@
-%%
-%% This is file `amscd.sty',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amscd.dtx 
-%% 
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amscd.dtx",
-%%%   version   = "2.0",
-%%%   date      = "1999/11/29",
-%%%   time      = "14:30:07 EST",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995, 1999 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Electronic Products and Services,
-%%%                P. O. Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   checksum  = "07428 333 1152 12117",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, commutative diagram",
-%%%   supported = "yes",
-%%%   abstract  = "This is a \LaTeX{} package that adapts the
-%%%                commutative diagram macros of AMS-\TeX{} for
-%%%                use in \LaTeX{}",
-%%%   docstring = "The checksum field above contains a CRC-16
-%%%                checksum as the first value, followed by the
-%%%                equivalent of the standard UNIX wc (word
-%%%                count) utility output of lines, words, and
-%%%                characters.  This is produced by Robert
-%%%                Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1994/12/01]% LaTeX date must December 1994 or later
-\ProvidesPackage{amscd}[1999/11/29 v2.0]
-\RequirePackage{amsgen}
-\@ifundefined{math@cr}{%
-  \def\math@cr{{\ifnum0=`}\fi
-    \@ifstar{\global\@eqpen\@M\math@cr@}%
-          {\global\@eqpen\interdisplaylinepenalty \math@cr@}}
-  \def\math@cr@{\new@ifnextchar[\math@cr@@{\math@cr@@[\z@]}}
-  \def\math@cr@@[#1]{\ifnum0=`{\fi}\math@cr@@@
-    \noalign{\vskip#1\relax}}
-  \def\restore@math@cr{\def\math@cr@@@{\cr}}
-}{}
-\restore@math@cr
-\@ifundefined{rightarrowfill@}{
-  \def\rightarrowfill@#1{\m@th\setboxz@h{$#1-$}\ht\z@\z@
-    $#1\copy\z@\mkern-6mu\cleaders
-    \hbox{$#1\mkern-2mu\box\z@\mkern-2mu$}\hfill
-    \mkern-6mu\mathord\rightarrow$}
-  \def\leftarrowfill@#1{\m@th\setboxz@h{$#1-$}\ht\z@\z@
-    $#1\mathord\leftarrow\mkern-6mu\cleaders
-    \hbox{$#1\mkern-2mu\copy\z@\mkern-2mu$}\hfill
-    \mkern-6mu\box\z@$}
-  \def\leftrightarrowfill@#1{\m@th\setboxz@h{$#1-$}\ht\z@\z@
-    $#1\mathord\leftarrow\mkern-6mu\cleaders
-    \hbox{$#1\mkern-2mu\box\z@\mkern-2mu$}\hfill
-    \mkern-6mu\mathord\rightarrow$}
-}{}
-\def\atdef@#1{\expandafter\def\csname\space @\string#1\endcsname}
-\@ifundefined{Iat}{%
-  \DeclareRobustCommand{\Iat}{\FN@\at@}
-}{}
-\begingroup \catcode`\@=\active
-\csname if\string @compatibility\endcsname
-\else \fam=\mathcode`\@
-  \xdef @{\mathchar\number\fam\space }
-\fi
-\gdef\CDat{\let @=\Iat}
-\endgroup
-\mathcode`\@="8000 % make @ pseudo-active in math
-\def\at@{\let\next@\at@@
- \ifcat\noexpand\next a\else
- \ifcat\noexpand\next0\else
- \ifcat\noexpand\next\relax\else
- \let\next@\at@@@\fi\fi\fi\next@}
-\def\at@@#1{\expandafter
-  \ifx\csname\space @\string#1\endcsname\relax
-    \DN@{\at@@@#1}%
-  \else
-    \DN@{\csname\space @\string#1\endcsname}%
-  \fi\next@}%
-\@ifundefined{default@tag}{%
-  \def\default@tag{%
-    \def\tag{\PackageError{amscd}{\protect\tag\space not allowed
-      here}\@eha}}%
-}{}%
-\@ifundefined{at@@@}{%
-  \def\at@@@{\PackageError{amscd}{\Invalid@@ @}{\the\athelp@}\char64\relax}
-}{}
-\@ifundefined{athelp@}{\csname newhelp\endcsname\athelp@
-{Only certain combinations beginning with @ make sense to me.^^J%
-I'll assume you wanted @@ for a printed @.}}{}
-\@ifundefined{minaw@}{\newdimen\minaw@}{}
-\@ifundefined{bigaw@}{\newdimen\bigaw@}{}
-\minaw@11.111pt
-\newdimen\minCDarrowwidth
-\minCDarrowwidth2.5pc
-\newif\ifCD@
-\let\ampersand@\relax
-\newenvironment{CD}{%
-  \CDat
-  \bgroup\relax\iffalse{\fi\let\ampersand@&\iffalse}\fi
-  \CD@true\vcenter\bgroup\let\\\math@cr\restore@math@cr\default@tag
-  \tabskip\z@skip\baselineskip20\ex@
-  \lineskip3\ex@\lineskiplimit3\ex@\halign\bgroup
-  &\hfill$\m@th##$\hfill\crcr
-}{%
-  \crcr\egroup\egroup\egroup
-}
-\def\CD@check#1#2{\ifCD@\DN@{#2}\else
-  \DN@{\PackageError{amscd}{@\protect#1 not
-    allowed outside of the CD environment}\@eha}%
-  \fi\next@}
-\atdef@>#1>#2>{\ampersand@
-  \ifCD@ \global\bigaw@\minCDarrowwidth \else \global\bigaw@\minaw@ \fi
-  \setboxz@h{$\m@th\scriptstyle\;{#1}\;\;$}%
-  \ifdim\wdz@>\bigaw@\global\bigaw@\wdz@\fi
-  \@ifnotempty{#2}{\setbox\@ne\hbox{$\m@th\scriptstyle\;{#2}\;\;$}%
-    \ifdim\wd\@ne>\bigaw@\global\bigaw@\wd\@ne\fi}%
- \ifCD@\enskip\fi
-   \mathrel{\mathop{\hbox to\bigaw@{\rightarrowfill@\displaystyle}}%
-     \limits^{#1}\@ifnotempty{#2}{_{#2}}}%
- \ifCD@\enskip\fi \ampersand@}
-\atdef@<#1<#2<{\ampersand@
-  \ifCD@ \global\bigaw@\minCDarrowwidth \else \global\bigaw@\minaw@ \fi
-  \setboxz@h{$\m@th\scriptstyle\;\;{#1}\;$}%
-  \ifdim\wdz@>\bigaw@ \global\bigaw@\wdz@ \fi
-  \@ifnotempty{#2}{\setbox\@ne\hbox{$\m@th\scriptstyle\;\;{#2}\;$}%
-    \ifdim\wd\@ne>\bigaw@ \global\bigaw@\wd\@ne \fi}%
-  \ifCD@\enskip\fi
-    \mathrel{\mathop{\hbox to\bigaw@{\leftarrowfill@\displaystyle}}%
-      \limits^{#1}\@ifnotempty{#2}{_{#2}}}%
-  \ifCD@\enskip\fi \ampersand@}
-\begingroup \catcode`\~=\active \lccode`\~=`\@
-\lowercase{%
-  \global\atdef@)#1)#2){~>#1>#2>}
-  \global\atdef@(#1(#2({~<#1<#2<}
-}% end lowercase
-\endgroup
-\atdef@ A#1A#2A{\CD@check{A..A..A}{\llap{$\m@th\vcenter{\hbox
-  {$\scriptstyle#1$}}$}\Big\uparrow
-  \rlap{$\m@th\vcenter{\hbox{$\scriptstyle#2$}}$}&&}}
-\atdef@ V#1V#2V{\CD@check{V..V..V}{\llap{$\m@th\vcenter{\hbox
-  {$\scriptstyle#1$}}$}\Big\downarrow
-  \rlap{$\m@th\vcenter{\hbox{$\scriptstyle#2$}}$}&&}}
-\atdef@={\CD@check={&\enskip\mathrel
-  {\vbox{\hrule\@width\minCDarrowwidth\vskip2\ex@\hrule\@width
-  \minCDarrowwidth}}\enskip&}}
-\atdef@|{\CD@check|{\Big\Vert&&}}
-\atdef@\vert{\CD@check\vert{\Big\Vert&&}}
-\atdef@.{\CD@check.{&&}}
-\endinput
-%%
-%% End of file `amscd.sty'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/amsdtx.cls b/Master/texmf-dist/tex/latex/amslatex/amsdtx.cls
deleted file mode 100644
index 96a50814c8f..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/amsdtx.cls
+++ /dev/null
@@ -1,517 +0,0 @@
-%%
-%% This is file `amsdtx.cls',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsdtx.dtx  (with options: `amsdtx')
-%% 
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsdtx.dtx",
-%%%   version   = "2.06",
-%%%   date      = "2004/08/06",
-%%%   time      = "12:18:49 EDT",
-%%%   checksum  = "19929 1192 3506 39423",
-%%%   author    = "Michael J. Downes, updated by David M. Jones",
-%%%   copyright = "Copyright 1996, 1999, 2004
-%%%                American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Publications Technical Group,
-%%%                201 Charles Street,
-%%%                Providence, RI 02904,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, amslatex, ams-latex, user documentation",
-%%%   supported = "yes",
-%%%   abstract  = "This is the source for two document classes, amsdtx
-%%%                and amsldoc, used to produce AMS user documentation
-%%%                or technical documentation.",
-%%%   docstring = "The checksum field above contains a CRC-16
-%%%                checksum as the first value, followed by the
-%%%                equivalent of the standard UNIX wc (word
-%%%                count) utility output of lines, words, and
-%%%                characters.  This is produced by Robert
-%%%                Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1995/06/01]% LaTeX date must be June 1995 or later
-\ProvidesClass{amsdtx}[2004/08/06 v2.06]
-\DeclareOption*{\PassOptionsToClass{\CurrentOption}{book}}
-\ProcessOptions
-\LoadClass{book}
-\IfFileExists{url.sty}{%
-    \RequirePackage{url}\relax
-    \@gobble
-}{%
-    \@firstofone
-}
-{
-    \DeclareRobustCommand{\url}[1]{%
-        \def\@tempa{#1}%
-        \texttt{\urlsetup $\expandafter\strip@prefix\meaning\@tempa$}%
-    }%
-    \def\urlsetup{%
-        \check@mathfonts \textfont\@ne\the\font \textfont\z@\the\font
-        \urlfix +\urlfix\=\urlfix\:\urlfix\-\urlfix\.\urlfix\,\urlfix\;%
-        \urlbreak\&\urlbreak\/\urlbreak\?%
-    }%
-    \def\urlbreak#1{%
-        \mathcode`#1="8000
-        \begingroup \lccode`\~=`#1 \lowercase{\endgroup \edef~}%
-        {\mathchar\number`#1\penalty\hyphenpenalty}%
-    }%
-    \def\urlfix#1{%
-        \mathcode`#1=`#1\relax
-    }%
-}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\providecommand{\qq}[1]{\textquotedblleft#1\/\textquotedblright}
-\providecommand{\mdash}{\textemdash\penalty\exhyphenpenalty}
-\providecommand{\ndash}{\textendash\penalty\exhyphenpenalty}
-\let\@xp\expandafter
-\newcommand*{\autoindex}[1]{%
-    \index{#1\ifcodeline@index\encapchar usage\fi}%
-}
-\newcommand{\ntt}{\normalfont\ttfamily}
-\newcommand*{\indexcs}[1]{%
-    \@xp\@xp\@xp\@indexcs\@xp\@nobslash\string#1\@nil
-}
-\def\@indexcs#1\@nil{%
-    \autoindex{#1\actualchar
-        \string\verb\quotechar*\verbatimchar
-            \@xp\@bothoftwo\string\ #1\@empty
-        \verbatimchar
-    }%
-}
-\def\@bothoftwo#1#2{#1#2}
-\def\category@index#1#2{%
-    {\ntt#2}%
-    \@category@index{#1}{#2}%
-}
-\def\@category@index#1#2{%
-    \autoindex{%
-        #2\actualchar\string\texttt{#2}%
-        \ifx\@nil#1\@nil\else\space#1\fi
-    }%
-}
-\chardef\bslchar=`\\ % p. 424, TeXbook
-\newcommand{\addbslash}{\expandafter\@addbslash\string}
-\def\@addbslash#1{\bslchar\@nobslash#1}
-\newcommand{\nobslash}{\expandafter\@nobslash\string}
-\def\@nobslash#1{\ifnum`#1=\bslchar\else#1\fi}
-\def\@boxorbreak{%
-    \leavevmode
-    \ifmmode\hbox\else\ifdim\lastskip=\z@\penalty9999 \fi\fi
-}
-\DeclareRobustCommand{\cs}[1]{%
-    \@boxorbreak{%
-        \ntt
-        \addbslash#1\@empty
-        \@xp\@xp\@xp\@indexcs\@xp\@nobslash\string#1\@nil
-    }%
-}
-\let\cn\cs
-\DeclareRobustCommand{\cls}{\category@index{class}}
-\DeclareRobustCommand{\pkg}{\category@index{package}}
-\DeclareRobustCommand{\opt}{\category@index{option}}
-\DeclareRobustCommand{\env}[1]{{\ntt#1}\SpecialEnvIndex{#1}}
-\DeclareRobustCommand{\fn}{\category@index{}}
-\DeclareRobustCommand{\bst}{\category@index{\string\BibTeX{} style}}
-\DeclareRobustCommand{\cnt}{\category@index{counter}}
-\DeclareRobustCommand{\fnt}{\category@index{font}}
-\def\allowtthyphens{\begingroup
-  \fontencoding{OT1}\fontfamily{cmtt}%
-  \expandafter\let\csname OT1+cmtt\endcsname\relax
-  \try@load@fontshape
-  \endgroup
-  \expandafter\let\csname OT1+cmtt\endcsname\@empty
-}
-\hfuzz2pc
-\vbadness9999 \hbadness5000
-\def\AmS{{\protect\usefont{OMS}{cmsy}{m}{n}%
-  A\kern-.1667em\lower.5ex\hbox{M}\kern-.125emS}}
-\def\latex/{{\protect\LaTeX}}
-\def\amslatex/{{\protect\AmS-\protect\LaTeX}}
-\def\tex/{{\protect\TeX}}
-\def\amstex/{{\protect\AmS-\protect\TeX}}
-\def\bibtex/{{Bib\protect\TeX}}
-\def\makeindx/{MakeIndex}
-\def\xypic/{XY\mbox{-}pic}
-\newcommand{\Textures}{\textit{Textures}}
-\def\<#1>{\textit{$\langle$#1\/$\rangle$}}
-\def\@listi{%
-  \leftmargin\leftmargini
-  \topsep 3\p@ \@plus2\p@ \@minus\p@
-  \parsep \p@ \@plus\p@ \itemsep\parsep
-}
-\let\@listI\@listi
-\@listi
-\def\@listii{%
-  \leftmargin\leftmarginii
-  \labelwidth\leftmarginii \advance\labelwidth-\labelsep
-  \topsep\p@\@plus\p@ \@minus\p@
-  \parsep\z@skip \itemsep\z@skip
-}
-\def\@listiii{%
-  \leftmargin\leftmarginiii
-  \labelwidth\leftmarginiii \advance\labelwidth-\labelsep
-  \topsep\z@skip \parsep\z@skip \itemsep\z@skip
-}
-\newenvironment{histnote}{%
-  \trivlist\item[\hspace{\labelsep}\bfseries Historical Note:]%
-}{%
-  \endtrivlist
-}
-\def\@starttoc#1{\begingroup
-  \let\autoindex\@gobble
-  \makeatletter
-  \@input{\jobname.#1}\if@filesw
-  \expandafter\newwrite\csname tf@#1\endcsname
-             \immediate\openout
-                 \csname tf@#1\endcsname \jobname.#1\relax
-  \fi \global\@nobreakfalse \endgroup}
-\newcommand*{\secref}[1]{\S\ref{#1}}
-\newcommand{\qc}[1]{}% check for prior definition
-\edef\qc#1{\noexpand\protect\expandafter\noexpand\csname qc \endcsname
-  \noexpand\protect#1}
-\@namedef{qc }#1#2{\begingroup\ntt
-  \ifx\ #2\char`\ \else\escapechar\m@ne\string#2\fi\endgroup}
-\DeclareRobustCommand{\qcat}{\qc\@}%
-\DeclareRobustCommand{\qcamp}{\qc\&}%
-\DeclareRobustCommand{\qcbang}{\qc\!}%
-\DeclareRobustCommand{\arg}[1]{{\ntt\##1}}
-\def\ncn#1{{\let\index\@gobble\cn{#1}}}
-
-\DeclareRobustCommand{\cnbang}{%
-  \ncn{\!}\index{"!@{\ntt\bslchar\qcbang}}}
-\DeclareRobustCommand{\cnat}{%
-  \ncn{\!}\index{"@@{\ntt\bslchar\qcat}}}
-\def\5{\penalty500 }
-\newcommand{\errexa}{\par\noindent\textit{Example}:\ }
-\newcommand{\errexpl}{\par\noindent\textit{Explanation}:\ }
-\renewcommand\chapter{\par \@afterindentfalse
-                    \secdef\@chapter\@schapter}
-\def\@chapter[#1]#2{\ifnum \c@secnumdepth >\m@ne
-                       \if@mainmatter
-                         \refstepcounter{chapter}%
-                         \typeout{\@chapapp\space\thechapter.}%
-                         \addcontentsline{toc}{chapter}%
-                                   {\protect\numberline{\thechapter}#1}%
-                       \else
-                         \addcontentsline{toc}{chapter}{#1}\fi
-                    \else
-                      \addcontentsline{toc}{chapter}{#1}
-                    \fi
-                    \chaptermark{#1}%
-                    \addtocontents{lof}{\protect\addvspace{10\p@}}%
-                    \addtocontents{lot}{\protect\addvspace{10\p@}}%
-                    \if@twocolumn
-                      \@topnewpage[\@makechapterhead{#2}]%
-                    \else
-                      \@makechapterhead{#2}%
-                      \@afterheading
-                    \fi}
-\def\@makechapterhead#1{%
-  \vspace{1.5\baselineskip}%
-  {\parindent \z@ \raggedright \reset@font
-    \ifnum \c@secnumdepth >\m@ne
-      \large\bfseries \@chapapp\space\thechapter
-      \par\nobreak
-      \vskip.5\baselineskip\relax
-    \fi
-    #1\par\nobreak
-    \vskip\baselineskip
-  }}
-\def\@schapter#1{\if@twocolumn
-                   \@topnewpage[\@makeschapterhead{#1}]%
-                 \else
-                   \@makeschapterhead{#1}%
-                   \@afterheading
-                 \fi}
-\def\@makeschapterhead#1{%
-  \vspace*{1.5\baselineskip}%
-  {\parindent \z@ \raggedright
-    \reset@font
-    \large \bfseries  #1\par\nobreak
-    \vskip\baselineskip
-  }}
-\def\@removefromreset#1#2{\let\@tempb\@elt
-   \expandafter\let\expandafter\@tempa\csname c@#1\endcsname
-   \def\@elt##1{\expandafter\ifx\csname c@##1\endcsname\@tempa\else
-         \noexpand\@elt{##1}\fi}%
-   \expandafter\edef\csname cl@#2\endcsname{\csname cl@#2\endcsname}%
-   \let\@elt\@tempb}
-\@removefromreset{footnote}{chapter}
-\def\ps@headings{%
-  \let\@oddfoot\@empty\let\@evenfoot\@empty
-  \def\@evenhead{\thepage\hfil{\footnotesize\leftmark{}{}}}%
-  \def\@oddhead{{\footnotesize\rightmark{}{}}\hfil\thepage}%
-  \let\@mkboth\markboth
-  \def\chaptermark##1{%
-    \markboth {\uppercase{\ifnum \c@secnumdepth >\m@ne
-      \if@mainmatter
-        \@chapapp\ \thechapter. \ \fi
-      \fi
-        ##1}}{}}%
-  \def\sectionmark##1{%
-    \markright {\uppercase{\ifnum \c@secnumdepth >\z@
-        \thesection. \ \fi
-        ##1}}}}
-\renewcommand\maketitle{\par
-  \begingroup
-    \renewcommand\thefootnote{\fnsymbol{footnote}}%
-    \def\@makefnmark{\hbox to\z@{$\m@th^{\@thefnmark}$\hss}}%
-    \long\def\@makefntext##1{\parindent 1em\noindent
-            \hbox to1.8em{\hss$\m@th^{\@thefnmark}$}##1}%
-    \if@twocolumn
-      \ifnum \col@number=\@ne
-        \@maketitle
-      \else
-        \twocolumn[\@maketitle]%
-      \fi
-    \else
-      \newpage
-      \global\@topnum\z@   % Prevents figures from going at top of page.
-      \@maketitle
-    \fi
-    \thispagestyle{plain}\@thanks
-  \endgroup
-  \setcounter{footnote}{0}%
-  \let\thanks\relax
-  \let\maketitle\relax\let\@maketitle\relax
-  \gdef\@thanks{}\gdef\@author{}\gdef\@title{}}
-\def\@maketitle{%
-  \newpage
-  \null
-  \vskip 2em%
-  \begin{center}%
-    {\LARGE \@title \par}%
-    \vskip 1.5em%
-    {\large
-      \lineskip .5em%
-      \begin{tabular}[t]{c}%
-        \@author
-      \end{tabular}\par}%
-    \vskip 1em%
-    {\large \@date}%
-  \end{center}%
-  \par
-  \uppercase\expandafter{\expandafter\toks@\expandafter{\@title}}%
-  \edef\@tempa{\noexpand\markboth{\the\toks@}{\the\toks@}}%
-  \@tempa
-  \vskip 1.5em}
-\renewcommand\tableofcontents{%
-    \if@twocolumn
-      \@restonecoltrue\onecolumn
-    \else
-      \@restonecolfalse
-    \fi
-    \subsection*{\contentsname}%
-    \@starttoc{toc}%
-    \if@restonecol\twocolumn\fi
-    }
-\renewcommand\section{\@startsection {section}{1}{\z@}%
-                                   {-.6\baselineskip \@plus -3\p@}%
-                                   {.4\baselineskip}
-                          {\reset@font\Large\bfseries}}
-\renewcommand\subsection{\@startsection{subsection}{2}{\z@}%
-                                     {-.3\baselineskip\@plus -2\p@}%
-                                     {.2\baselineskip}%
-                          {\reset@font\large\bfseries}}
-\renewcommand\subsubsection{\@startsection{subsubsection}{3}{\z@}%
-                                     {-.2\baselineskip\@plus -2\p@}%
-                                     {.2\baselineskip}%
-                                     {\reset@font\normalsize\bfseries}}
-\renewenvironment{theindex}{%
-  \if@twocolumn \@restonecolfalse \else \@restonecoltrue \fi
-  \columnseprule \z@ \columnsep 35\p@
-  \let\autoindex\@gobble
-  \twocolumn[\section*{\indexname}]%
-  \addcontentsline{toc}{chapter}{\indexname}%
-  \@mkboth{\uppercase{\indexname}}{\uppercase{\indexname}}%
-  \thispagestyle{plain}\parindent\z@
-  \parskip\z@ \@plus .3\p@\relax
-  \let\item\@idxitem
-}{%
-  \if@restonecol\onecolumn\else\clearpage\fi
-}
-\renewcommand{\thesection}{\arabic{section}}
-\long\def\@makecaption#1#2{%
-  \addvspace\abovecaptionskip
-  \begingroup
-    \countdef\@parcycles=8 % local count register
-    \@parcycles\z@
-    \@setpar{\advance\@parcycles\@ne \ifnum\@parcycles>999
-      \@@par\@parcycles\z@\fi
-      \ifhmode \unskip\hskip\parfillskip\penalty-\@M\fi}%
-    \@hangfrom{\textbf{#1.} }\vadjust{\penalty\m@ne}#2%
-  \endgroup
-  \ifhmode\unpenalty\fi\par
-  \ifnum\lastpenalty=\m@ne % only one line in the caption
-    \unpenalty \setbox\@tempboxa\lastbox
-    \nointerlineskip
-    \hbox to\hsize{\hfill\unhbox\@tempboxa\unskip\hfill}%
-  \fi
-  \nobreak\vskip\belowcaptionskip
-}
-\renewenvironment{table}{%
-  \belowcaptionskip\abovecaptionskip \abovecaptionskip\z@skip
-  \@float{table}%
-}{%
-  \end@float
-}
-\renewenvironment{table*}{%
-  \belowcaptionskip\abovecaptionskip \abovecaptionskip\z@skip
-  \@dblfloat{table}%
-}{%
-  \end@dblfloat
-}
-\setcounter{topnumber}{4}\setcounter{bottomnumber}{4}
-\setcounter{totalnumber}{4}\setcounter{dbltopnumber}{4}
-\renewcommand{\topfraction}{.97}\renewcommand{\bottomfraction}{.97}
-\renewcommand{\textfraction}{.03}\renewcommand{\floatpagefraction}{.9}
-\renewcommand{\dbltopfraction}{.97}
-\renewcommand{\dblfloatpagefraction}{.9}
-\setlength{\floatsep}{8pt plus6pt}
-\setlength{\textfloatsep}{10pt plus8pt}
-\setlength{\intextsep}{8pt plus6pt}
-\setlength{\dblfloatsep}{8pt plus6pt}
-\setlength{\dbltextfloatsep}{10pt plus8pt}
-\setlength{\@fptop}{0pt}\setlength{\@fpsep}{8pt}%
-\setlength{\@fpbot}{0pt plus 1fil}
-\setlength{\@dblfptop}{0pt}\setlength{\@dblfpsep}{8pt}%
-\setlength{\@dblfpbot}{0pt plus 1fil}
-
-\pagestyle{headings}
-\newcommand{\arrayargpatch}{%
-  \let\@oldarray\@array
-  \edef\@array[##1]##2{\catcode\number`\|=\number\catcode`\|
-    \catcode\number`\@=\number\catcode`\@ \relax
-    \let\noexpand\@array\noexpand\@oldarray
-    \noexpand\@array[##1]{##2}}%
-  \catcode`\|=12 \catcode`\@=12 \relax
-}
-\newenvironment{ctab}{%
-  \par\topsep\medskipamount
-  \trivlist\centering
-  \item[]%
-  \arrayargpatch
-  \begin{tabular}%
-}{%
-  \end{tabular}%
-  \endtrivlist
-}
-\RequirePackage{doc}
-\def\AltMacroFont{\MacroFont}
-\def\SpecialMainEnvIndex#1{%
-    \@bsphack
-    \special@index{%
-        #1\actualchar\string\texttt{#1} environment\encapchar main%
-    }%
-    \special@index{%
-        environments:\levelchar#1%
-        \actualchar\string\texttt{#1}%
-        \encapchar main}%
-    \@esphack
-}
-\def\SpecialEnvIndex#1{%
-    \@bsphack
-    \index{#1\actualchar\string\texttt{#1} environment\encapchar usage}%
-    \index{%
-        environments:\levelchar#1%
-        \actualchar\string\texttt{#1}%
-        \encapchar usage}%
-    \@esphack
-}
-\def\DescribeOption{%
-    \leavevmode
-    \@bsphack
-    \begingroup
-        \MakePrivateLetters
-    \Describe@Option
-}
-\def\Describe@Option#1{%
-    \endgroup
-    \marginpar{\raggedleft\PrintDescribeOption{#1}}%
-    \SpecialOptionIndex{#1}%
-    \@esphack
-    \ignorespaces
-}
-\def\PrintDescribeOption#1{\strut \MacroFont #1\ }
-\def\option{%
-    \let\SpecialMainEnvIndex\SpecialMainOptionIndex
-\begingroup
-   \catcode`\\12
-   \MakePrivateLetters \m@cro@ \iffalse}
-\def\SpecialMainOptionIndex#1{%
-    \@bsphack
-    \special@index{#1\actualchar\string\texttt{#1} option\encapchar main}%
-    \@esphack
-}
-\def\SpecialOptionIndex{\@category@index{option}}
-\def\hDocInput#1{\MakePercentIgnore
-  \begingroup
-  \begingroup \lccode`\~=`\@
-  \lowercase{\endgroup\long\def ~}##1##{%
-    \catcode`\==12 \skipfileheader{##1}}%
-  \catcode`\@=\active \catcode`\==14 % comment
-  \def\filename{#1}%
-  \@@input#1 \MakePercentComment}
-\def\skipfileheader#1#2 {\endgroup
-  \hGetFileInfo#2 version = "??" date = "??"\@nil
-  \begingroup\catcode`\==9 \catcode`\ =9 \futurelet\0\endgroup
-}
-\long\def\hGetFileInfo#1 version = "#2"#3 date = "#4"#5\@nil{%
-  \def\fileversion{#2}\def\filedate{#4}}
-\DoNotIndex{\@xp,\@nx,\@empty,\newcommand,\renewcommand}
-\DoNotIndex{\newenvironment,\renewenvironment,\providecommand}
-\DoNotIndex{\if,\fi,\ifnum,\fi,\@let@token,\futurelet,\fsa@n}
-\DoNotIndex{\ignorespaces,\@tempcnta,\@tempcntb,\count@}
-\DoNotIndex{\toks@,\@ne,\advance}
-\DoNotIndex{\!,\/,\?,\@,\^,\_}
-\DoNotIndex{\@@par,\@M,\@auxout,\@bsphack,\@esphack,\@depth,\@ehc}
-\DoNotIndex{\@for,\@flushglue,\@gobble,\@gobbletwo,\@height,\@idxitem}
-\DoNotIndex{\@ifnextchar,\@ifstar,\@ifundefined,\@input,\@latexerr}
-\DoNotIndex{\@makeschapterhead,\@namedef,\@nameuse,\@nil}
-\DoNotIndex{\@nobreakfalse,\@restonecolfalse,\@restonecoltrue}
-\DoNotIndex{\@tempa,\@tempb,\@tempc,\@tempf,\@temptokena,\@themark,\@width}
-\DoNotIndex{\active,\aindex,\baselineskip,\begin,\begingroup,\box}
-\DoNotIndex{\c@page,\catcode,\chapter,\char,\chardef,\closeout}
-\DoNotIndex{\CodelineIndex,\sp,\sb,\label,\leavevmode,\mark}
-\DoNotIndex{\mark,\newinsert,\newwrite,\newtoks,\xdef}
-\DoNotIndex{\columnsep,\columnseprule,\columnwidth,\csname,\def}
-\DoNotIndex{\dimen,\do,\DocInput,\documentstyle,\edef,\em}
-\DoNotIndex{\EnableCrossrefs,\end,\endcsname,\endgroup,\endinput}
-\DoNotIndex{\everypar,\expandafter,\filedate,\fileversion}
-\DoNotIndex{\footnotesize,\gdef,\global,\glossary,\hangindent}
-\DoNotIndex{\if@filesw,\else,\fi}
-\DoNotIndex{\if@nobreak,\if@twocolumn,\if@twoside,\fi,\fi,\fi}
-\DoNotIndex{\hsize,\hskip}
-\DoNotIndex{\ifhmode,\ifmmode,\ifodd,\ifvmode,\ifx,\fi,\fi,\fi,\fi,\fi}
-\DoNotIndex{\ifcase,\ifdim,\ifeof,\iffalse,\iftrue,\fi,\fi,\fi,\fi,\fi}
-\DoNotIndex{\ifcat,\fi}
-\DoNotIndex{\immediate,\insert,\item,\jobname,\long}
-\DoNotIndex{\let,\lineskip,\marginparsep,\marginparwidth,\maxdimen}
-\DoNotIndex{\makeatletter,\noexpand,\openout,\protect,\rlap}
-\DoNotIndex{\min,\newpage,\nobreak,\normalbaselineskip}
-\DoNotIndex{\normallineskip,\p@,\par,\parfillskip,\parindent,\parskip}
-\DoNotIndex{\penalty,\relax,\section,\sin,\sloppy,\space,\string}
-\DoNotIndex{\tableofcontents,\the,\thepage,\thispagestyle,\toks,\tt}
-\DoNotIndex{\twocolumn,\uppercase,\vbox,\vrule,\vskip,\vss}
-\DoNotIndex{\write,\z@,\z@skip}
-\endinput
-%%
-%% End of file `amsdtx.cls'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/amsgen.sty b/Master/texmf-dist/tex/latex/amslatex/amsgen.sty
deleted file mode 100644
index 9d39357a496..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/amsgen.sty
+++ /dev/null
@@ -1,160 +0,0 @@
-%%
-%% This is file `amsgen.sty',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsgen.dtx 
-%% 
-%%% ====================================================================
-%%%  @LaTeX-file{
-%%%     filename  = "amsgen.dtx",
-%%%     version   = "2.0",
-%%%     date      = "1999/11/30",
-%%%     time      = "12:33:33 EST",
-%%%     author    = "American Mathematical Society",
-%%%     copyright = "Copyright 1995, 1999 American Mathematical Society,
-%%%                  all rights reserved.  Copying of this file is
-%%%                  authorized only if either:
-%%%                  (1) you make absolutely no changes to your copy,
-%%%                  including name; OR
-%%%                  (2) if you do make changes, you first rename it
-%%%                  to some other name.",
-%%%     address   = "American Mathematical Society,
-%%%                  Technical Support,
-%%%                  Electronic Products and Services,
-%%%                  P. O. Box 6248,
-%%%                  Providence, RI 02940,
-%%%                  USA",
-%%%     telephone = "401-455-4080 or (in the USA and Canada)
-%%%                  800-321-4AMS (321-4267)",
-%%%     FAX       = "401-331-3842",
-%%%     checksum  = "07569 396 1613 14368",
-%%%     email     = "tech-support@ams.org (Internet)",
-%%%     codetable = "ISO/ASCII",
-%%%     keywords  = "latex, amslatex, ams-latex",
-%%%     supported = "yes",
-%%%     abstract  = "This is part of the AMS-\LaTeX{} distribution.
-%%%                  It contains some general internal macros shared
-%%%                  by several different files in AMS-\LaTeX{}.",
-%%%     docstring = "The checksum field above contains a CRC-16
-%%%                  checksum as the first value, followed by the
-%%%                  equivalent of the standard UNIX wc (word
-%%%                  count) utility output of lines, words, and
-%%%                  characters.  This is produced by Robert
-%%%                  Solovay's checksum utility.",
-%%%  }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1994/12/01]% LaTeX date must December 1994 or later
-\ProvidesFile{amsgen.sty}[1999/11/30 v2.0]
-\providecommand{\@saveprimitive}[2]{\begingroup\escapechar`\\\relax
-  \edef\@tempa{\string#1}\edef\@tempb{\meaning#1}%
-  \ifx\@tempa\@tempb \global\let#2#1%
-  \else
-    \edef\@tempb{\meaning#2}%
-    \ifx\@tempa\@tempb
-    \else
-      \@latex@error{Unable to properly define \string#2; primitive
-      \noexpand#1no longer primitive}\@eha
-    \fi
-  \fi
-  \endgroup}
-\let\@xp=\expandafter
-\let\@nx=\noexpand
-\newtoks\@emptytoks
-\def\@oparg#1[#2]{\@ifnextchar[{#1}{#1[#2]}}
-\long\def\@ifempty#1{\@xifempty#1@@..\@nil}
-\long\def\@xifempty#1#2@#3#4#5\@nil{%
-  \ifx#3#4\@xp\@firstoftwo\else\@xp\@secondoftwo\fi}
-\long\def\@ifnotempty#1{\@ifempty{#1}{}}
-\def\FN@{\futurelet\@let@token}
-\def\DN@{\def\next@}
-\def\RIfM@{\relax\ifmmode}
-\def\setboxz@h{\setbox\z@\hbox}
-\def\wdz@{\wd\z@}
-\def\boxz@{\box\z@}
-\def\relaxnext@{\let\@let@token\relax}
-\long\def\new@ifnextchar#1#2#3{%
-  \let\reserved@d= #1%
-  \def\reserved@a{#2}\def\reserved@b{#3}%
-  \futurelet\@let@token\new@ifnch
-}
-\def\new@ifnch{%
-  \ifx\@let@token\reserved@d \let\reserved@b\reserved@a \fi
-  \reserved@b
-}
-\def\@ifstar#1#2{\new@ifnextchar *{\def\reserved@a*{#1}\reserved@a}{#2}}
-\@ifundefined{every@math@size}{%
-\let\every@math@size=\every@size
-\def\glb@settings{%
-     \expandafter\ifx\csname S@\f@size\endcsname\relax
-       \calculate@math@sizes
-     \fi
-     \csname S@\f@size\endcsname
-      \ifmath@fonts
-        \begingroup
-          \escapechar\m@ne
-          \csname mv@\math@version \endcsname
-          \globaldefs\@ne
-          \let \glb@currsize \f@size
-          \math@fonts
-        \endgroup
-        \the\every@math@size
-      \else
-      \fi
-}
-\def\set@fontsize#1#2#3{%
-    \@defaultunits\@tempdimb#2pt\relax\@nnil
-    \edef\f@size{\strip@pt\@tempdimb}%
-    \@defaultunits\@tempskipa#3pt\relax\@nnil
-    \edef\f@baselineskip{\the\@tempskipa}%
-    \edef\f@linespread{#1}%
-    \let\baselinestretch\f@linespread
-      \def\size@update{%
-        \baselineskip\f@baselineskip\relax
-        \baselineskip\f@linespread\baselineskip
-        \normalbaselineskip\baselineskip
-        \setbox\strutbox\hbox{%
-          \vrule\@height.7\baselineskip
-                \@depth.3\baselineskip
-                \@width\z@}%
-%%%     \the\every@size
-        \let\size@update\relax}%
-  }
-}{}% end \@ifundefined test
-\newdimen\ex@
-\addto@hook\every@math@size{\compute@ex@}
-\def\compute@ex@{%
-  \begingroup
-  \dimen@-\f@size\p@
-  \ifdim\dimen@<-20\p@
-    \global\ex@ 1.5\p@
-  \else
-    \advance\dimen@10\p@ \multiply\dimen@\tw@
-    \edef\@tempa{\ifdim\dimen@>\z@ -\fi}%
-    \dimen@ \ifdim\dimen@<\z@ -\fi \dimen@
-    \advance\dimen@-\@m sp % fudge factor
-    \vfuzz\p@
-    \def\do{\ifdim\dimen@>\z@
-      \vfuzz=.97\vfuzz
-      \advance\dimen@ -\p@
-      \@xp\do \fi}%
-    \do
-    \dimen@\p@ \advance\dimen@-\vfuzz
-    \global\ex@\p@
-    \global\advance\ex@ \@tempa\dimen@
-  \fi
-  \endgroup
-}
-\def\@addpunct#1{\ifnum\spacefactor>\@m \else#1\fi}
-\def\frenchspacing{\sfcode`\.1006\sfcode`\?1005\sfcode`\!1004%
-  \sfcode`\:1003\sfcode`\;1002\sfcode`\,1001 }
-\def\nomath@env{\@amsmath@err{%
-  \string\begin{\@currenvir} allowed only in paragraph mode%
-}\@ehb% "You've lost some text"
-}
-\def\Invalid@@{Invalid use of \string}
-\endinput
-%%
-%% End of file `amsgen.sty'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/amsldoc.cls b/Master/texmf-dist/tex/latex/amslatex/amsldoc.cls
deleted file mode 100644
index 0e8d142cbf9..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/amsldoc.cls
+++ /dev/null
@@ -1,451 +0,0 @@
-%%
-%% This is file `amsldoc.cls',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsdtx.dtx  (with options: `amsldoc')
-%% 
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsdtx.dtx",
-%%%   version   = "2.06",
-%%%   date      = "2004/08/06",
-%%%   time      = "12:18:49 EDT",
-%%%   checksum  = "19929 1192 3506 39423",
-%%%   author    = "Michael J. Downes, updated by David M. Jones",
-%%%   copyright = "Copyright 1996, 1999, 2004
-%%%                American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Publications Technical Group,
-%%%                201 Charles Street,
-%%%                Providence, RI 02904,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, amslatex, ams-latex, user documentation",
-%%%   supported = "yes",
-%%%   abstract  = "This is the source for two document classes, amsdtx
-%%%                and amsldoc, used to produce AMS user documentation
-%%%                or technical documentation.",
-%%%   docstring = "The checksum field above contains a CRC-16
-%%%                checksum as the first value, followed by the
-%%%                equivalent of the standard UNIX wc (word
-%%%                count) utility output of lines, words, and
-%%%                characters.  This is produced by Robert
-%%%                Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1995/06/01]% LaTeX date must be June 1995 or later
-\ProvidesClass{amsldoc}[2004/08/06 v2.06]
-\DeclareOption*{\PassOptionsToClass{\CurrentOption}{book}}
-\ProcessOptions
-\LoadClass{book}
-\IfFileExists{url.sty}{%
-    \RequirePackage{url}\relax
-    \@gobble
-}{%
-    \@firstofone
-}
-{
-    \DeclareRobustCommand{\url}[1]{%
-        \def\@tempa{#1}%
-        \texttt{\urlsetup $\expandafter\strip@prefix\meaning\@tempa$}%
-    }%
-    \def\urlsetup{%
-        \check@mathfonts \textfont\@ne\the\font \textfont\z@\the\font
-        \urlfix +\urlfix\=\urlfix\:\urlfix\-\urlfix\.\urlfix\,\urlfix\;%
-        \urlbreak\&\urlbreak\/\urlbreak\?%
-    }%
-    \def\urlbreak#1{%
-        \mathcode`#1="8000
-        \begingroup \lccode`\~=`#1 \lowercase{\endgroup \edef~}%
-        {\mathchar\number`#1\penalty\hyphenpenalty}%
-    }%
-    \def\urlfix#1{%
-        \mathcode`#1=`#1\relax
-    }%
-}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\providecommand{\qq}[1]{\textquotedblleft#1\/\textquotedblright}
-\providecommand{\mdash}{\textemdash\penalty\exhyphenpenalty}
-\providecommand{\ndash}{\textendash\penalty\exhyphenpenalty}
-\let\@xp\expandafter
-\def\actualchar{@}
-\def\quotechar{"}
-\def\levelchar{!}
-\def\encapchar{|}
-\def\verbatimchar{+}
-\newif\ifcodeline@index
-\newcommand*{\autoindex}[1]{%
-    \index{#1\ifcodeline@index\encapchar usage\fi}%
-}
-\newcommand{\ntt}{\normalfont\ttfamily}
-\newcommand*{\indexcs}[1]{%
-    \@xp\@xp\@xp\@indexcs\@xp\@nobslash\string#1\@nil
-}
-\def\@indexcs#1\@nil{%
-    \autoindex{#1\actualchar
-        \string\verb\quotechar*\verbatimchar
-            \@xp\@bothoftwo\string\ #1\@empty
-        \verbatimchar
-    }%
-}
-\def\@bothoftwo#1#2{#1#2}
-\def\category@index#1#2{%
-    {\ntt#2}%
-    \@category@index{#1}{#2}%
-}
-\def\@category@index#1#2{%
-    \autoindex{%
-        #2\actualchar\string\texttt{#2}%
-        \ifx\@nil#1\@nil\else\space#1\fi
-    }%
-}
-\chardef\bslchar=`\\ % p. 424, TeXbook
-\newcommand{\addbslash}{\expandafter\@addbslash\string}
-\def\@addbslash#1{\bslchar\@nobslash#1}
-\newcommand{\nobslash}{\expandafter\@nobslash\string}
-\def\@nobslash#1{\ifnum`#1=\bslchar\else#1\fi}
-\def\@boxorbreak{%
-    \leavevmode
-    \ifmmode\hbox\else\ifdim\lastskip=\z@\penalty9999 \fi\fi
-}
-\DeclareRobustCommand{\cs}[1]{%
-    \@boxorbreak{%
-        \ntt
-        \addbslash#1\@empty
-        \@xp\@xp\@xp\@indexcs\@xp\@nobslash\string#1\@nil
-    }%
-}
-\let\cn\cs
-\DeclareRobustCommand{\cls}{\category@index{class}}
-\DeclareRobustCommand{\pkg}{\category@index{package}}
-\DeclareRobustCommand{\opt}{\category@index{option}}
-\DeclareRobustCommand{\env}{\category@index{environment}}
-\DeclareRobustCommand{\fn}{\category@index{}}
-\DeclareRobustCommand{\bst}{\category@index{\string\BibTeX{} style}}
-\DeclareRobustCommand{\cnt}{\category@index{counter}}
-\DeclareRobustCommand{\fnt}{\category@index{font}}
-\def\allowtthyphens{\begingroup
-  \fontencoding{OT1}\fontfamily{cmtt}%
-  \expandafter\let\csname OT1+cmtt\endcsname\relax
-  \try@load@fontshape
-  \endgroup
-  \expandafter\let\csname OT1+cmtt\endcsname\@empty
-}
-\hfuzz2pc
-\vbadness9999 \hbadness5000
-\def\AmS{{\protect\usefont{OMS}{cmsy}{m}{n}%
-  A\kern-.1667em\lower.5ex\hbox{M}\kern-.125emS}}
-\def\latex/{{\protect\LaTeX}}
-\def\amslatex/{{\protect\AmS-\protect\LaTeX}}
-\def\tex/{{\protect\TeX}}
-\def\amstex/{{\protect\AmS-\protect\TeX}}
-\def\bibtex/{{Bib\protect\TeX}}
-\def\makeindx/{MakeIndex}
-\def\xypic/{XY\mbox{-}pic}
-\newcommand{\Textures}{\textit{Textures}}
-\def\<#1>{\textit{$\langle$#1\/$\rangle$}}
-\def\@listi{%
-  \leftmargin\leftmargini
-  \topsep 3\p@ \@plus2\p@ \@minus\p@
-  \parsep \p@ \@plus\p@ \itemsep\parsep
-}
-\let\@listI\@listi
-\@listi
-\def\@listii{%
-  \leftmargin\leftmarginii
-  \labelwidth\leftmarginii \advance\labelwidth-\labelsep
-  \topsep\p@\@plus\p@ \@minus\p@
-  \parsep\z@skip \itemsep\z@skip
-}
-\def\@listiii{%
-  \leftmargin\leftmarginiii
-  \labelwidth\leftmarginiii \advance\labelwidth-\labelsep
-  \topsep\z@skip \parsep\z@skip \itemsep\z@skip
-}
-\newenvironment{histnote}{%
-  \trivlist\item[\hspace{\labelsep}\bfseries Historical Note:]%
-}{%
-  \endtrivlist
-}
-\def\@starttoc#1{\begingroup
-  \let\autoindex\@gobble
-  \makeatletter
-  \@input{\jobname.#1}\if@filesw
-  \expandafter\newwrite\csname tf@#1\endcsname
-             \immediate\openout
-                 \csname tf@#1\endcsname \jobname.#1\relax
-  \fi \global\@nobreakfalse \endgroup}
-\newcommand{\gloss}[1]{}
-\newcommand*{\secref}[1]{\S\ref{#1}}
-\newcommand{\qc}[1]{}% check for prior definition
-\edef\qc#1{\noexpand\protect\expandafter\noexpand\csname qc \endcsname
-  \noexpand\protect#1}
-\@namedef{qc }#1#2{\begingroup\ntt
-  \ifx\ #2\char`\ \else\escapechar\m@ne\string#2\fi\endgroup}
-\DeclareRobustCommand{\qcat}{\qc\@}%
-\DeclareRobustCommand{\qcamp}{\qc\&}%
-\DeclareRobustCommand{\qcbang}{\qc\!}%
-\DeclareRobustCommand{\arg}[1]{{\ntt\##1}}
-\newcommand{\openbox}{\leavevmode
-  \hbox to.77778em{%
-  \hfil\vrule
-  \vbox to.675em{\hrule width.6em\vfil\hrule}%
-  \vrule\hfil}}
-\newcommand{\qedsymbol}{\openbox}
-\def\mail{\texttt}
-\def\*#1{\def\@tempa{#1}\def\@tempb{*}%
-  \ifx\@tempa\@tempb \expandafter\index
-  \else #1\index{#1}\fi}
-\def\ncn#1{{\let\index\@gobble\cn{#1}}}
-
-\DeclareRobustCommand{\cnbang}{%
-  \ncn{\!}\index{"!@{\ntt\bslchar\qcbang}}}
-\DeclareRobustCommand{\cnat}{%
-  \ncn{\!}\index{"@@{\ntt\bslchar\qcat}}}
-\def\5{\penalty500 }
-\newenvironment{error}{%
-  \begingroup\catcode`\\=12 \expandafter\endgroup\errora
-}{%
-  \endtrivlist
-}
-\newcommand{\errora}[1]{%
-  \trivlist
-  \item[\hskip\labelsep\errorbullet\enspace
-    \ntt\frenchspacing\def\@tempa{#1}%
-    \expandafter\strip@prefix\meaning\@tempa]\leavevmode\par
-}
-\newcommand{\errorbullet}{\rule[-.5pt]{2.5pt}{7.5pt}%
-  \rule[-.5pt]{5pt}{2.5pt}\kern-2.5pt%
-  \rule[4.5pt]{2.5pt}{2.5pt}}
-\newcommand{\errexa}{\par\noindent\textit{Example}:\ }
-\newcommand{\errexpl}{\par\noindent\textit{Explanation}:\ }
-\renewcommand\frontmatter{\clearpage
-            \@mainmatterfalse\pagenumbering{roman}}
-\renewcommand\mainmatter{\clearpage
-       \@mainmattertrue\pagenumbering{arabic}}
-\renewcommand\backmatter{\clearpage \@mainmatterfalse}
-\renewcommand\part{\clearpage
-                 \thispagestyle{plain}%
-                 \if@twocolumn
-                     \onecolumn
-                     \@tempswatrue
-                   \else
-                     \@tempswafalse
-                 \fi
-                 \hbox{}\vfil
-                 \secdef\@part\@spart}
-\def\@part[#1]#2{%
-    \ifnum \c@secnumdepth >-2\relax
-      \refstepcounter{part}%
-      \addcontentsline{toc}{part}{\thepart\hspace{1em}#1}%
-    \else
-      \addcontentsline{toc}{part}{#1}%
-    \fi
-    \markboth{}{}%
-    {\centering
-     \interlinepenalty \@M
-     \reset@font
-     \ifnum \c@secnumdepth >-2\relax
-       \Large\bfseries \partname~\thepart
-       \par
-       \vskip 20\p@
-     \fi
-     \Large \bfseries #2\par}%
-    \@endpart}
-\def\@spart#1{%
-    {\centering
-     \interlinepenalty \@M
-     \reset@font
-     \Large \bfseries #1\par}%
-    \@endpart}
-\def\@endpart{\vfil\newpage
-              \if@twoside
-                \hbox{}%
-                \thispagestyle{empty}%
-                \newpage
-              \fi
-              \if@tempswa
-                \twocolumn
-              \fi}
-\renewcommand\chapter{\par \@afterindentfalse
-                    \secdef\@chapter\@schapter}
-\def\@chapter[#1]#2{\ifnum \c@secnumdepth >\m@ne
-                       \if@mainmatter
-                         \refstepcounter{chapter}%
-                         \typeout{\@chapapp\space\thechapter.}%
-                         \addcontentsline{toc}{chapter}%
-                                   {\protect\numberline{\thechapter}#1}%
-                       \else
-                         \addcontentsline{toc}{chapter}{#1}\fi
-                    \else
-                      \addcontentsline{toc}{chapter}{#1}
-                    \fi
-                    \chaptermark{#1}%
-                    \addtocontents{lof}{\protect\addvspace{10\p@}}%
-                    \addtocontents{lot}{\protect\addvspace{10\p@}}%
-                    \if@twocolumn
-                      \@topnewpage[\@makechapterhead{#2}]%
-                    \else
-                      \@makechapterhead{#2}%
-                      \@afterheading
-                    \fi}
-\def\@makechapterhead#1{%
-  \vspace{1.5\baselineskip}%
-  {\parindent \z@ \raggedright \reset@font
-    \ifnum \c@secnumdepth >\m@ne
-      \large\bfseries \@chapapp\space\thechapter
-      \par\nobreak
-      \vskip.5\baselineskip\relax
-    \fi
-    #1\par\nobreak
-    \vskip\baselineskip
-  }}
-\def\@schapter#1{\if@twocolumn
-                   \@topnewpage[\@makeschapterhead{#1}]%
-                 \else
-                   \@makeschapterhead{#1}%
-                   \@afterheading
-                 \fi}
-\def\@makeschapterhead#1{%
-  \vspace*{1.5\baselineskip}%
-  {\parindent \z@ \raggedright
-    \reset@font
-    \large \bfseries  #1\par\nobreak
-    \vskip\baselineskip
-  }}
-\def\@removefromreset#1#2{\let\@tempb\@elt
-   \expandafter\let\expandafter\@tempa\csname c@#1\endcsname
-   \def\@elt##1{\expandafter\ifx\csname c@##1\endcsname\@tempa\else
-         \noexpand\@elt{##1}\fi}%
-   \expandafter\edef\csname cl@#2\endcsname{\csname cl@#2\endcsname}%
-   \let\@elt\@tempb}
-\@removefromreset{footnote}{chapter}
-\def\ps@headings{%
-  \let\@oddfoot\@empty\let\@evenfoot\@empty
-  \def\@evenhead{\thepage\hfil{\footnotesize\leftmark{}{}}}%
-  \def\@oddhead{{\footnotesize\rightmark{}{}}\hfil\thepage}%
-  \let\@mkboth\markboth
-  \def\chaptermark##1{%
-    \markboth {\uppercase{\ifnum \c@secnumdepth >\m@ne
-      \if@mainmatter
-        \@chapapp\ \thechapter. \ \fi
-      \fi
-        ##1}}{}}%
-  \def\sectionmark##1{%
-    \markright {\uppercase{\ifnum \c@secnumdepth >\z@
-        \thesection. \ \fi
-        ##1}}}}
-\renewcommand\section{\@startsection {section}{1}{\z@}%
-                                   {-.6\baselineskip \@plus -3\p@}%
-                                   {.4\baselineskip}
-                         {\reset@font\normalsize\bfseries}}
-\renewcommand\subsection{\@startsection{subsection}{2}{\z@}%
-                                     {-.3\baselineskip\@plus -2\p@}%
-                                     {.2\baselineskip}%
-                         {\reset@font\normalsize\bfseries}}
-\renewcommand\subsubsection{\@startsection{subsubsection}{3}{\z@}%
-                                     {-.2\baselineskip\@plus -2\p@}%
-                                     {.2\baselineskip}%
-                                     {\reset@font\normalsize\bfseries}}
-\renewenvironment{theindex}{%
-  \if@twocolumn \@restonecolfalse \else \@restonecoltrue \fi
-  \columnseprule \z@ \columnsep 35\p@
-  \let\autoindex\@gobble
-  \twocolumn[\@makeschapterhead{\indexname}]%
-  \addcontentsline{toc}{chapter}{\indexname}%
-  \@mkboth{\uppercase{\indexname}}{\uppercase{\indexname}}%
-  \thispagestyle{plain}\parindent\z@
-  \parskip\z@ \@plus .3\p@\relax
-  \let\item\@idxitem
-}{%
-  \if@restonecol\onecolumn\else\clearpage\fi
-}
-\long\def\@makecaption#1#2{%
-  \addvspace\abovecaptionskip
-  \begingroup
-    \countdef\@parcycles=8 % local count register
-    \@parcycles\z@
-    \@setpar{\advance\@parcycles\@ne \ifnum\@parcycles>999
-      \@@par\@parcycles\z@\fi
-      \ifhmode \unskip\hskip\parfillskip\penalty-\@M\fi}%
-    \@hangfrom{\textbf{#1.} }\vadjust{\penalty\m@ne}#2%
-  \endgroup
-  \ifhmode\unpenalty\fi\par
-  \ifnum\lastpenalty=\m@ne % only one line in the caption
-    \unpenalty \setbox\@tempboxa\lastbox
-    \nointerlineskip
-    \hbox to\hsize{\hfill\unhbox\@tempboxa\unskip\hfill}%
-  \fi
-  \nobreak\vskip\belowcaptionskip
-}
-\renewenvironment{table}{%
-  \belowcaptionskip\abovecaptionskip \abovecaptionskip\z@skip
-  \@float{table}%
-}{%
-  \end@float
-}
-\renewenvironment{table*}{%
-  \belowcaptionskip\abovecaptionskip \abovecaptionskip\z@skip
-  \@dblfloat{table}%
-}{%
-  \end@dblfloat
-}
-\setcounter{topnumber}{4}\setcounter{bottomnumber}{4}
-\setcounter{totalnumber}{4}\setcounter{dbltopnumber}{4}
-\renewcommand{\topfraction}{.97}\renewcommand{\bottomfraction}{.97}
-\renewcommand{\textfraction}{.03}\renewcommand{\floatpagefraction}{.9}
-\renewcommand{\dbltopfraction}{.97}
-\renewcommand{\dblfloatpagefraction}{.9}
-\setlength{\floatsep}{8pt plus6pt}
-\setlength{\textfloatsep}{10pt plus8pt}
-\setlength{\intextsep}{8pt plus6pt}
-\setlength{\dblfloatsep}{8pt plus6pt}
-\setlength{\dbltextfloatsep}{10pt plus8pt}
-\setlength{\@fptop}{0pt}\setlength{\@fpsep}{8pt}%
-\setlength{\@fpbot}{0pt plus 1fil}
-\setlength{\@dblfptop}{0pt}\setlength{\@dblfpsep}{8pt}%
-\setlength{\@dblfpbot}{0pt plus 1fil}
-
-\pagestyle{headings}
-\AtBeginDocument{\catcode`\|=\active }
-\def\activevert{\verb|}
-\expandafter\gdef\expandafter\dospecials\expandafter
-  {\dospecials \do\|}%
-\expandafter\gdef\expandafter\@sanitize\expandafter
-  {\@sanitize \@makeother\|}
-\begingroup\catcode`\|=\active \gdef|{\protect\activevert{}}\endgroup
-\newcommand{\arrayargpatch}{%
-  \let\@oldarray\@array
-  \edef\@array[##1]##2{\catcode\number`\|=\number\catcode`\|
-    \catcode\number`\@=\number\catcode`\@ \relax
-    \let\noexpand\@array\noexpand\@oldarray
-    \noexpand\@array[##1]{##2}}%
-  \catcode`\|=12 \catcode`\@=12 \relax
-}
-\newenvironment{ctab}{%
-  \par\topsep\medskipamount
-  \trivlist\centering
-  \item[]%
-  \arrayargpatch
-  \begin{tabular}%
-}{%
-  \end{tabular}%
-  \endtrivlist
-}
-\endinput
-%%
-%% End of file `amsldoc.cls'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/amsmath.sty b/Master/texmf-dist/tex/latex/amslatex/amsmath.sty
deleted file mode 100644
index 8d22f7aeb0f..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/amsmath.sty
+++ /dev/null
@@ -1,2670 +0,0 @@
-%%
-%% This is file `amsmath.sty',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsmath.dtx 
-%% 
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsmath.dtx",
-%%%   version   = "2.13",
-%%%   date      = "2000/07/18",
-%%%   time      = "08:16:41 EDT",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995, 2000 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Publications Technical Group,
-%%%                P. O. Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   checksum  = "38084 5829 21569 202795",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, amslatex, math, amsmath",
-%%%   supported = "yes",
-%%%   abstract  = "This is a \LaTeX{} package that provides a variety of
-%%%                extra mathematical features, largely derived from
-%%%                AMS-\TeX{}.",
-%%%   docstring = "The checksum field above contains a CRC-16 checksum
-%%%                as the first value, followed by the equivalent of
-%%%                the standard UNIX wc (word count) utility output of
-%%%                lines, words, and characters.  This is produced by
-%%%                Robert Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1994/12/01]% LaTeX date must be December 1994 or later
-\ProvidesPackage{amsmath}[2000/07/18 v2.13 AMS math features]
-\edef\@temp{\catcode 96=\number\catcode 96 }
-\catcode\string `\`=12
-\def\do#1{\catcode\number`#1=\number\catcode`#1}
-\edef\@temp{%
-  \noexpand\AtEndOfPackage{%
-    \@temp
-    \do\"\do\'\do\(\do\)\do\*\do\+\do\,\do\-\do\.%
-    \do\/\do\<\do\=\do\>\do\[\do\]\do\^\do\_\relax
-  }%
-}
-\@temp
-\def\do#1{\catcode\number`#1=12 }
-\do\"\do\'\do\(\do\)\do\*\do\+\do\,\do\-\do\.
-\do\/\do\<\do\=\do\>\do\[\do\]
-\catcode`\^=7 \catcode`\_=8
-\DeclareOption{intlimits}{\let\ilimits@\displaylimits}
-\DeclareOption{nointlimits}{\let\ilimits@\nolimits}
-\DeclareOption{sumlimits}{\let\slimits@\displaylimits}
-\DeclareOption{nosumlimits}{\let\slimits@\nolimits}
-\DeclareOption{namelimits}{\PassOptionsToPackage{namelimits}{amsopn}}
-\DeclareOption{nonamelimits}{%
-  \PassOptionsToPackage{nonamelimits}{amsopn}}
-\newif\ifctagsplit@
-\newif\iftagsleft@
-\DeclareOption{leqno}{\tagsleft@true}
-\DeclareOption{reqno}{\tagsleft@false}
-\DeclareOption{centertags}{\ctagsplit@true}
-\DeclareOption{tbtags}{\ctagsplit@false}
-\DeclareOption{cmex10}{%
-  \ifnum\cmex@opt=\@ne \def\cmex@opt{0}%
-  \else \def\cmex@opt{10}\fi
-}
-\@ifundefined{cmex@opt}{\def\cmex@opt{7}}{}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\newif\if@fleqn
-\newskip\@mathmargin
-\@mathmargin\@centering
-\DeclareOption{fleqn}{%
-    \@fleqntrue
-    \@mathmargin = -1sp
-    \let\mathindent=\@mathmargin
-    \AtBeginDocument{%
-        \ifdim\@mathmargin= -1sp
-            \@mathmargin\leftmargini minus\leftmargini
-        \fi
-    }%
-}
-\DeclareOption{?}{}
-\ExecuteOptions{nointlimits,sumlimits,namelimits,centertags}
-\ProcessOptions\par
-\@ifpackagewith{amsmath}{?}{%
-  \typeout{^^J%
-Documentation for the amsmath package is found in amsldoc.dvi^^J%
-(or .pdf or .tex).^^J%
-^^J%
-See also http://www.ams.org/tex/amslatex.html.^^J%
-^^J%
-Note: Using the first edition of The LaTeX Companion (1994) without^^J%
-errata as a guide for amsmath use is not recommended.^^J%
-  }%
-}{%
-  \typeout{%
-For additional information on amsmath, use the \lq ?\rq\space option.%
-  }%
-}
-\ifnum\cmex@opt=7 \relax
-  \DeclareFontShape{OMX}{cmex}{m}{n}{%
-    <-8>cmex7<8>cmex8<9>cmex9%
-    <10><10.95><12><14.4><17.28><20.74><24.88>cmex10%
-  }{}%
-  \expandafter\let\csname OMX/cmex/m/n/10\endcsname\relax
-\else
-  \ifnum\cmex@opt=\z@ % need to override cmex7 fontdef from amsfonts
-    \begingroup
-    \fontencoding{OMX}\fontfamily{cmex}%
-    \expandafter\let\csname OMX+cmex\endcsname\relax
-    \try@load@fontshape
-    \endgroup
-    \expandafter\let\csname OMX/cmex/m/n/10\endcsname\relax
-    \def\cmex@opt{10}%
-  \fi
-\fi
-\RequirePackage{amstext}[1995/01/25]
-\RequirePackage{amsbsy}[1995/01/20]
-\RequirePackage{amsopn}[1995/01/20]
-\def\@amsmath@err{\PackageError{amsmath}}
-\providecommand{\AmS}{{\protect\AmSfont
-  A\kern-.1667em\lower.5ex\hbox{M}\kern-.125emS}}
-\newcommand{\AmSfont}{%
-  \usefont{OMS}{cmsy}{\if\@xp\@car\f@series\@nil bb\else m\fi}{n}}
-\def\@mathmeasure#1#2#3{\setbox#1\hbox{\frozen@everymath\@emptytoks
-  \m@th$#2#3$}}
-\@ifundefined{inf@bad}{%
-  \newcount\inf@bad \inf@bad=1000000 \relax
-}{}
-\DeclareRobustCommand{\tmspace}[3]{%
-  \ifmmode\mskip#1#2\else\kern#1#3\fi\relax}
-\renewcommand{\,}{\tmspace+\thinmuskip{.1667em}}
-\let\thinspace\,
-\renewcommand{\!}{\tmspace-\thinmuskip{.1667em}}
-\let\negthinspace\!
-\renewcommand{\:}{\tmspace+\medmuskip{.2222em}}
-\let\medspace\:
-\newcommand{\negmedspace}{\tmspace-\medmuskip{.2222em}}
-\renewcommand{\;}{\tmspace+\thickmuskip{.2777em}}
-\let\thickspace\;
-\newcommand{\negthickspace}{\tmspace-\thickmuskip{.2777em}}
-\newcommand{\mspace}[1]{\mskip#1\relax}
-\def\@tempa#1#2\@nil{%
-  \ifx\delimiter#1\@tempcnta#2\relax\else\@tempcnta\z@\fi
-}
-\@xp\@tempa\vert\@empty\@nil
-\ifnum\@tempcnta>\z@
-  \advance\@tempcnta "4000000
-  \xdef\lvert{\delimiter\number\@tempcnta\space }
-  \advance\@tempcnta "1000000
-  \xdef\rvert{\delimiter\number\@tempcnta\space }
-\else
-  \ifx\@@undefined\lvert
-    % Fall back to cmex encoding since we don't know what else to do.
-    \DeclareMathDelimiter{\lvert}
-      {\mathopen}{symbols}{"6A}{largesymbols}{"0C}
-    \DeclareMathDelimiter{\rvert}
-      {\mathclose}{symbols}{"6A}{largesymbols}{"0C}
-  \fi
-\fi
-\@xp\@tempa\Vert\@empty\@nil
-\ifnum\@tempcnta>\z@
-  \advance\@tempcnta "4000000
-  \xdef\lVert{\delimiter\number\@tempcnta\space }
-  \advance\@tempcnta "1000000
-  \xdef\rVert{\delimiter\number\@tempcnta\space }
-\else
-  \ifx\@@undefined\lVert
-    \DeclareMathDelimiter{\lVert}
-      {\mathopen}{symbols}{"6B}{largesymbols}{"0D}
-    \DeclareMathDelimiter{\rVert}
-      {\mathclose}{symbols}{"6B}{largesymbols}{"0D}
-  \fi
-\fi
-\@saveprimitive\over\@@over
-\@saveprimitive\atop\@@atop
-\@saveprimitive\above\@@above
-\@saveprimitive\overwithdelims\@@overwithdelims
-\@saveprimitive\atopwithdelims\@@atopwithdelims
-\@saveprimitive\abovewithdelims\@@abovewithdelims
-\DeclareRobustCommand{\primfrac}[1]{%
-  \PackageWarning{amsmath}{%
-Foreign command \@backslashchar#1;\MessageBreak
-\protect\frac\space or \protect\genfrac\space should be used instead%
-\MessageBreak
-  }
-  \global\@xp\let\csname#1\@xp\endcsname\csname @@#1\endcsname
-  \csname#1\endcsname
-}
-\renewcommand{\over}{\primfrac{over}}
-\renewcommand{\atop}{\primfrac{atop}}
-\renewcommand{\above}{\primfrac{above}}
-\renewcommand{\overwithdelims}{\primfrac{overwithdelims}}
-\renewcommand{\atopwithdelims}{\primfrac{atopwithdelims}}
-\renewcommand{\abovewithdelims}{\primfrac{abovewithdelims}}
-\DeclareRobustCommand{\frac}[2]{{\begingroup#1\endgroup\@@over#2}}
-\newcommand{\dfrac}{\genfrac{}{}{}0}
-\newcommand{\tfrac}{\genfrac{}{}{}1}
-\DeclareRobustCommand{\binom}{\genfrac()\z@{}}
-\newcommand{\dbinom}{\genfrac(){0pt}0}
-\newcommand{\tbinom}{\genfrac(){0pt}1}
-\DeclareRobustCommand{\genfrac}[4]{%
-  \def\@tempa{#1#2}%
-  \edef\@tempb{\@nx\@genfrac\@mathstyle{#4}%
-    \csname @@\ifx @#3@over\else above\fi
-    \ifx\@tempa\@empty \else withdelims\fi\endcsname}
-  \@tempb{#1#2#3}}
-\def\@genfrac#1#2#3#4#5{{#1{\begingroup#4\endgroup#2#3\relax#5}}}
-\def\@mathstyle#1{%
-  \ifx\@empty#1\@empty\relax
-  \else\ifcase#1\displaystyle % case 0
-    \or\textstyle\or\scriptstyle\else\scriptscriptstyle\fi\fi}
-\begingroup
-\edef\@tempa{\string\mathchar"}
-\def\@tempb#1"#2\@nil{#1"}
-\edef\@tempc{\expandafter\@tempb\meaning\coprod "\@nil}
-\ifx\@tempa\@tempc
-  \global\let\coprod@\coprod
-  \gdef\coprod{\DOTSB\coprod@\slimits@}
-  \global\let\bigvee@\bigvee
-  \gdef\bigvee{\DOTSB\bigvee@\slimits@}
-  \global\let\bigwedge@\bigwedge
-  \gdef\bigwedge{\DOTSB\bigwedge@\slimits@}
-  \global\let\biguplus@\biguplus
-  \gdef\biguplus{\DOTSB\biguplus@\slimits@}
-  \global\let\bigcap@\bigcap
-  \gdef\bigcap{\DOTSB\bigcap@\slimits@}
-  \global\let\bigcup@\bigcup
-  \gdef\bigcup{\DOTSB\bigcup@\slimits@}
-  \global\let\prod@\prod
-  \gdef\prod{\DOTSB\prod@\slimits@}
-  \global\let\sum@\sum
-  \gdef\sum{\DOTSB\sum@\slimits@}
-  \global\let\bigotimes@\bigotimes
-  \gdef\bigotimes{\DOTSB\bigotimes@\slimits@}
-  \global\let\bigoplus@\bigoplus
-  \gdef\bigoplus{\DOTSB\bigoplus@\slimits@}
-  \global\let\bigodot@\bigodot
-  \gdef\bigodot{\DOTSB\bigodot@\slimits@}
-  \global\let\bigsqcup@\bigsqcup
-  \gdef\bigsqcup{\DOTSB\bigsqcup@\slimits@}
-\fi
-\endgroup
-\newcommand{\leftroot}{\@amsmath@err{\Invalid@@\leftroot}\@eha}
-\newcommand{\uproot}{\@amsmath@err{\Invalid@@\uproot}\@eha}
-\newcount\uproot@
-\newcount\leftroot@
-\renewcommand{\root}{\relaxnext@
-  \DN@{\ifx\@let@token\uproot\let\next@\nextii@\else
-   \ifx\@let@token\leftroot\let\next@\nextiii@\else
-   \let\next@\plainroot@\fi\fi\next@}%
-  \def\nextii@\uproot##1{\uproot@##1\relax\FN@\nextiv@}%
-  \def\nextiv@{\ifx\@let@token\@sptoken\DN@. {\FN@\nextv@}\else
-   \DN@.{\FN@\nextv@}\fi\next@.}%
-  \def\nextv@{\ifx\@let@token\leftroot\let\next@\nextvi@\else
-   \let\next@\plainroot@\fi\next@}%
-  \def\nextvi@\leftroot##1{\leftroot@##1\relax\plainroot@}%
-   \def\nextiii@\leftroot##1{\leftroot@##1\relax\FN@\nextvii@}%
-  \def\nextvii@{\ifx\@let@token\@sptoken
-   \DN@. {\FN@\nextviii@}\else
-   \DN@.{\FN@\nextviii@}\fi\next@.}%
-  \def\nextviii@{\ifx\@let@token\uproot\let\next@\nextix@\else
-   \let\next@\plainroot@\fi\next@}%
-  \def\nextix@\uproot##1{\uproot@##1\relax\plainroot@}%
-  \bgroup\uproot@\z@\leftroot@\z@\FN@\next@}
-\def\plainroot@#1\of#2{\setbox\rootbox\hbox{%
- $\m@th\scriptscriptstyle{#1}$}%
- \mathchoice{\r@@t\displaystyle{#2}}{\r@@t\textstyle{#2}}
- {\r@@t\scriptstyle{#2}}{\r@@t\scriptscriptstyle{#2}}\egroup}
-
-\@ifundefined{sqrtsign}{\let\sqrtsign\@@sqrt}{}
-\def\r@@t#1#2{\setboxz@h{$\m@th#1\sqrtsign{#2}$}%
- \dimen@\ht\z@\advance\dimen@-\dp\z@
- \setbox\@ne\hbox{$\m@th#1\mskip\uproot@ mu$}%
- \advance\dimen@ by1.667\wd\@ne
- \mkern-\leftroot@ mu\mkern5mu\raise.6\dimen@\copy\rootbox
- \mkern-10mu\mkern\leftroot@ mu\boxz@}
-\@ifundefined{varGamma}{%
-  \DeclareMathSymbol{\varGamma}{\mathord}{letters}{"00}
-  \DeclareMathSymbol{\varDelta}{\mathord}{letters}{"01}
-  \DeclareMathSymbol{\varTheta}{\mathord}{letters}{"02}
-  \DeclareMathSymbol{\varLambda}{\mathord}{letters}{"03}
-  \DeclareMathSymbol{\varXi}{\mathord}{letters}{"04}
-  \DeclareMathSymbol{\varPi}{\mathord}{letters}{"05}
-  \DeclareMathSymbol{\varSigma}{\mathord}{letters}{"06}
-  \DeclareMathSymbol{\varUpsilon}{\mathord}{letters}{"07}
-  \DeclareMathSymbol{\varPhi}{\mathord}{letters}{"08}
-  \DeclareMathSymbol{\varPsi}{\mathord}{letters}{"09}
-  \DeclareMathSymbol{\varOmega}{\mathord}{letters}{"0A}
-}{}
-\@saveprimitive\overline\@@overline
-\DeclareRobustCommand{\overline}[1]{\@@overline{#1}}
-\newcommand{\boxed}[1]{\fbox{\m@th$\displaystyle#1$}}
-\newcommand{\implies}{\DOTSB\;\Longrightarrow\;}
-\newcommand{\impliedby}{\DOTSB\;\Longleftarrow\;}
-\def\And{\DOTSB\;\mathchar"3026 \;}
-\newcommand{\nobreakdash}{\leavevmode
-  \toks@\@emptytoks \def\@tempa##1{\toks@\@xp{\the\toks@-}\FN@\next@}%
-  \DN@{\ifx\@let@token-\@xp\@tempa
-       \else\setboxz@h{\the\toks@\nobreak}\unhbox\z@\fi}%
-  \FN@\next@
-}
-\renewcommand{\colon}{\nobreak\mskip2mu\mathpunct{}\nonscript
-  \mkern-\thinmuskip{:}\mskip6muplus1mu\relax}
-\let\ifgtest@\iffalse                              % initial value
-\def\gtest@true{\global\let\ifgtest@\iftrue}
-\def\gtest@false{\global\let\ifgtest@\iffalse}
-\let\DOTSI\relax
-\let\DOTSB\relax
-\let\DOTSX\relax
-{\uccode`7=`\\ \uccode`8=`m \uccode`9=`a \uccode`0=`t \uccode`!=`h
- \uppercase{%
-  \gdef\math@#1#2#3#4#5#6\math@{\gtest@false\ifx 7#1\ifx 8#2%
-  \ifx 9#3\ifx 0#4\ifx !#5\xdef\meaning@{#6}\gtest@true
-  \fi\fi\fi\fi\fi}}}
-{\uccode`7=`c \uccode`8=`h \uccode`9=`\"
- \uppercase{\gdef\mathch@#1#2#3#4#5#6\mathch@{\gtest@false
-  \ifx 7#1\ifx 8#2\ifx 9#5\gtest@true\xdef\meaning@{9#6}\fi\fi\fi}}}
-\newcount\classnum@
-\def\getmathch@#1.#2\getmathch@{\classnum@#1 \divide\classnum@4096
- \ifcase\number\classnum@\or\or\gdef\thedots@{\dotsb@}\or
- \gdef\thedots@{\dotsb@}\fi}
-{\uccode`4=`b \uccode`5=`i \uccode`6=`n
- \uppercase{\gdef\mathbin@#1#2#3{\relaxnext@
-  \def\nextii@##1\mathbin@{\ifx\@sptoken\@let@token\gtest@true\fi}%
-  \gtest@false\DN@##1\mathbin@{}%
- \ifx 4#1\ifx 5#2\ifx 6#3\DN@{\FN@\nextii@}\fi\fi\fi\next@}}}
-{\uccode`4=`r \uccode`5=`e \uccode`6=`l
- \uppercase{\gdef\mathrel@#1#2#3{\relaxnext@
-  \def\nextii@##1\mathrel@{\ifx\@sptoken\@let@token\gtest@true\fi}%
- \gtest@false\DN@##1\mathrel@{}%
- \ifx 4#1\ifx 5#2\ifx 6#3\DN@{\FN@\nextii@}\fi\fi\fi\next@}}}
-{\uccode`5=`m \uccode`6=`a \uccode`7=`c
- \uppercase{\gdef\macro@#1#2#3#4\macro@{\gtest@false
-  \ifx 5#1\ifx 6#2\ifx 7#3\gtest@true
-  \xdef\meaning@{\macro@@#4\macro@@}\fi\fi\fi}}}
-\def\macro@@#1->#2\macro@@{#2}
-\newcount\DOTSCASE@
-{\uccode`6=`\\ \uccode`7=`D \uccode`8=`O \uccode`9=`T \uccode`0=`S
- \uppercase{\gdef\DOTS@#1#2#3#4#5{\gtest@false\DN@##1\DOTS@{}%
-  \ifx 6#1\ifx 7#2\ifx 8#3\ifx 9#4\ifx 0#5\let\next@\DOTS@@
-  \fi\fi\fi\fi\fi
-  \next@}}}
-{\uccode`3=`B \uccode`4=`I \uccode`5=`X
- \uppercase{\gdef\DOTS@@#1{\relaxnext@
-  \def\nextii@##1\DOTS@{\ifx\@sptoken\@let@token\gtest@true\fi}%
-  \DN@{\FN@\nextii@}%
-  \ifx 3#1\global\DOTSCASE@\z@\else
-  \ifx 4#1\global\DOTSCASE@\@ne\else
-  \ifx 5#1\global\DOTSCASE@\tw@\else\DN@##1\DOTS@{}%
-  \fi\fi\fi\next@}}}
-{\uccode`5=`\\ \uccode`6=`n \uccode`7=`o \uccode`8=`t
- \uppercase{\gdef\not@#1#2#3#4{\relaxnext@
-  \def\nextii@##1\not@{\ifx\@sptoken\@let@token\gtest@true\fi}%
- \gtest@false\DN@##1\not@{}%
- \ifx 5#1\ifx 6#2\ifx 7#3\ifx 8#4\DN@{\FN@\nextii@}\fi\fi\fi
- \fi\next@}}}
-\def\keybin@{\gtest@true
- \ifx\@let@token+\else\ifx\@let@token=\else
- \ifx\@let@token<\else\ifx\@let@token>\else
- \ifx\@let@token-\else\ifx\@let@token*\else\ifx\@let@token:\else
-   \gtest@false\fi\fi\fi\fi\fi\fi\fi}
-\@ifundefined{@ldots}{\def\@ldots{\mathellipsis}}{}
-\DeclareRobustCommand{\ldots}{%
-  \ifmmode \mathellipsis \else \textellipsis \fi
-}
-\DeclareRobustCommand{\dots}{%
-  \ifmmode \@xp\mdots@\else \@xp\textellipsis \fi
-}
-\def\tdots@{\leavevmode\unskip\relaxnext@
- \DN@{$\m@th\@ldots\,
-   \ifx\@let@token,\,$\else\ifx\@let@token.\,$\else
-   \ifx\@let@token;\,$\else\ifx\@let@token:\,$\else
-   \ifx\@let@token?\,$\else\ifx\@let@token!\,$\else
-     $ \fi\fi\fi\fi\fi\fi}%
-  \ \FN@\next@}
-\def\mdots@{\FN@\mdots@@}
-\def\mdots@@{\gdef\thedots@{\dotso@}%
- \ifx\@let@token\boldsymbol \gdef\thedots@\boldsymbol{\boldsymboldots@}%
- \else\ifx,\@let@token \gdef\thedots@{\dotsc}%
- \else\ifx\not\@let@token \gdef\thedots@{\dotsb@}%
- \else\keybin@
- \ifgtest@\gdef\thedots@{\dotsb@}%
- \else\xdef\meaning@{\meaning\@let@token..........}%
-   \xdef\meaning@@{\meaning@}%
-  \@xp\math@\meaning@\math@
-  \ifgtest@
-   \@xp\mathch@\meaning@\mathch@
-   \ifgtest@\@xp\getmathch@\meaning@\getmathch@\fi
-  \else\@xp\macro@\meaning@@\macro@
-  \ifgtest@
-   \@xp\not@\meaning@\not@\ifgtest@\gdef\thedots@{\dotsb@}%
-  \else\@xp\DOTS@\meaning@\DOTS@
-  \ifgtest@
-   \ifcase\number\DOTSCASE@\gdef\thedots@{\dotsb@}%
-    \or\gdef\thedots@{\dotsi}\else\fi
-  \else\@xp\math@\meaning@\math@
-  \ifgtest@\@xp\mathbin@\meaning@\mathbin@
-  \ifgtest@\gdef\thedots@{\dotsb@}%
-  \else\@xp\mathrel@\meaning@\mathrel@
-  \ifgtest@\gdef\thedots@{\dotsb@}%
-  \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
- \thedots@}
-\def\boldsymboldots@#1{%
-  \bold@true\let\@let@token=#1\let\delayed@=#1\mdots@@
-  \boldsymbol#1\bold@false}
-\def\@cdots{\mathinner{\cdotp\cdotp\cdotp}}
-\newcommand{\dotsi}{\!\@cdots}
-\let\dotsb@\@cdots
-\def\rightdelim@{\gtest@true
- \ifx\@let@token)\else
- \ifx\@let@token]\else
- \ifx\@let@token\rbrack\else
- \ifx\@let@token\}\else
- \ifx\@let@token\rbrace\else
- \ifx\@let@token\rangle\else
- \ifx\@let@token\rceil\else
- \ifx\@let@token\rfloor\else
- \ifx\@let@token\rgroup\else
- \ifx\@let@token\rmoustache\else
- \ifx\@let@token\right\else
- \ifx\@let@token\bigr\else
- \ifx\@let@token\biggr\else
- \ifx\@let@token\Bigr\else
- \ifx\@let@token\Biggr\else\gtest@false
- \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi}
-\def\extra@{%
- \rightdelim@\ifgtest@
- \else\ifx\@let@token$\gtest@true
- \else\xdef\meaning@{\meaning\@let@token..........}%
- \@xp\macro@\meaning@\macro@\ifgtest@
- \@xp\DOTS@\meaning@\DOTS@
- \ifgtest@
- \ifnum\DOTSCASE@=\tw@\gtest@true\else\gtest@false
- \fi\fi\fi\fi\fi}
-\newif\ifbold@
-\def\dotso@{\relaxnext@
- \ifbold@
-  \let\@let@token\delayed@
-  \def\nextii@{\extra@\@ldots\ifgtest@\,\fi}%
- \else
-  \def\nextii@{\DN@{\extra@\@ldots\ifgtest@\,\fi}\FN@\next@}%
- \fi
- \nextii@}
-\def\extrap@#1{%
- \DN@{#1\,}%
- \ifx\@let@token,\else
- \ifx\@let@token;\else
- \ifx\@let@token.\else\extra@
- \ifgtest@\else
- \let\next@#1\fi\fi\fi\fi\next@}
-\DeclareRobustCommand{\cdots}{\DN@{\extrap@\@cdots}\FN@\next@}
-\let\dotsb\cdots
-\let\dotsm\cdots
-\DeclareRobustCommand{\dotso}{\relax
-  \ifmmode \DN@{\extrap@\@ldots}%
-  \else \let\next@\tdots@\fi
-  \FN@\next@}
-\DeclareRobustCommand{\dotsc}{%
-  \DN@{\ifx\@let@token;\@ldots\,%
-       \else \ifx\@let@token.\@ldots\,%
-       \else \extra@\@ldots \ifgtest@\,\fi
-       \fi\fi}%
-  \FN@\next@}
-\renewcommand{\longrightarrow}{%
-  \DOTSB\protect\relbar\protect\joinrel\rightarrow}
-\renewcommand{\Longrightarrow}{%
-  \DOTSB\protect\Relbar\protect\joinrel\Rightarrow}
-\renewcommand{\longleftarrow}{%
-  \DOTSB\leftarrow\protect\joinrel\protect\relbar}
-\renewcommand{\Longleftarrow}{%
-  \DOTSB\Leftarrow\protect\joinrel\protect\Relbar}
-\renewcommand{\longleftrightarrow}{\DOTSB\leftarrow\joinrel\rightarrow}
-\renewcommand{\Longleftrightarrow}{\DOTSB\Leftarrow\joinrel\Rightarrow}
-\renewcommand{\mapsto}{\DOTSB\mapstochar\rightarrow}
-\renewcommand{\longmapsto}{\DOTSB\mapstochar\longrightarrow}
-\renewcommand{\hookrightarrow}{\DOTSB\lhook\joinrel\rightarrow}
-\renewcommand{\hookleftarrow}{\DOTSB\leftarrow\joinrel\rhook}
-\renewcommand{\iff}{\DOTSB\;\Longleftrightarrow\;}
-\renewcommand{\doteq}{%
-  \DOTSB\mathrel{\mathop{\kern0pt =}\limits^{\textstyle.}}}
-\newif\if@display
-\everydisplay\@xp{\the\everydisplay \@displaytrue}
-\renewcommand{\int}{\DOTSI\intop\ilimits@}
-\renewcommand{\oint}{\DOTSI\ointop\ilimits@}
-\def\intkern@{\mkern-6mu\mathchoice{\mkern-3mu}{}{}{}}
-\def\intdots@{\mathchoice{\@cdots}%
- {{\cdotp}\mkern1.5mu{\cdotp}\mkern1.5mu{\cdotp}}%
- {{\cdotp}\mkern1mu{\cdotp}\mkern1mu{\cdotp}}%
- {{\cdotp}\mkern1mu{\cdotp}\mkern1mu{\cdotp}}}
-\newcommand{\iint}{\DOTSI\protect\MultiIntegral{2}}
-\newcommand{\iiint}{\DOTSI\protect\MultiIntegral{3}}
-\newcommand{\iiiint}{\DOTSI\protect\MultiIntegral{4}}
-\newcommand{\idotsint}{\DOTSI\protect\MultiIntegral{0}}
-\newcommand{\MultiIntegral}[1]{%
-  \edef\ints@c{\noexpand\intop
-    \ifnum#1=\z@\noexpand\intdots@\else\noexpand\intkern@\fi
-    \ifnum#1>\tw@\noexpand\intop\noexpand\intkern@\fi
-    \ifnum#1>\thr@@\noexpand\intop\noexpand\intkern@\fi
-    \noexpand\intop
-    \noexpand\ilimits@
-  }%
-  \futurelet\@let@token\ints@a
-}
-\def\ints@a{%
-  \ifx\limits\@let@token \ints@b
-  \else \ifx\displaylimits\@let@token \ints@b
-  \else\ifx\ilimits@\displaylimits \ints@b
-  \fi\fi\fi
-  \ints@c
-}
-\def\ints@b{%
-  \mkern-7mu\mathchoice{\mkern-2mu}{}{}{}%
-  \mathop\bgroup
-    \mkern7mu\mathchoice{\mkern2mu}{}{}{}%
-    \let\ilimits@\egroup
-}%
-\newbox\Mathstrutbox@
-\setbox\Mathstrutbox@=\hbox{}
-\def\Mathstrut@{\copy\Mathstrutbox@}
-\def\resetMathstrut@{%
-  \setbox\z@\hbox{%
-    \mathchardef\@tempa\mathcode`\(\relax
-    \def\@tempb##1"##2##3{\the\textfont"##3\char"}%
-    \expandafter\@tempb\meaning\@tempa \relax
-  }%
-  \ht\Mathstrutbox@\ht\z@ \dp\Mathstrutbox@\dp\z@
-}
-\addto@hook\every@math@size{\resetMathstrut@}
-\newbox\strutbox@
-\def\strut@{\copy\strutbox@}
-\def\reset@strutbox@{%
-  \global\setbox\strutbox@\hbox{%
-    \lower.5\normallineskiplimit
-       \vbox{\kern-\normallineskiplimit\copy\strutbox}}}
-\addto@hook\every@math@size{\reset@strutbox@}
-\AtBeginDocument{\reset@strutbox@}
-\renewcommand{\big}{\bBigg@\@ne}
-\renewcommand{\Big}{\bBigg@{1.5}}
-\renewcommand{\bigg}{\bBigg@\tw@}
-\renewcommand{\Bigg}{\bBigg@{2.5}}
-\def\bBigg@#1#2{%
-  {\@mathmeasure\z@{\nulldelimiterspace\z@}%
-     {\left#2\vcenter to#1\big@size{}\right.}%
-   \box\z@}}
-\addto@hook\every@math@size{%
-  \global\big@size 1.2\ht\Mathstrutbox@
-  \global\advance\big@size 1.2\dp\Mathstrutbox@ }
-\newdimen\big@size
-\def\accentclass@{7}
-\def\noaccents@{\def\accentclass@{0}}
-\DeclareFontEncoding{OML}{}{\noaccents@}
-\DeclareFontEncoding{OMS}{}{\noaccents@}
-\newcommand{\dddot}[1]{%
-  {\mathop{#1}\limits^{\vbox to-1.4\ex@{\kern-\tw@\ex@
-   \hbox{\normalfont ...}\vss}}}}
-\newcommand{\ddddot}[1]{%
-  {\mathop{#1}\limits^{\vbox to-1.4\ex@{\kern-\tw@\ex@
-   \hbox{\normalfont....}\vss}}}}
-\def\set@mathaccent#1#2#3#4{%
-  \xdef#2{\@nx\protect\@nx\mathaccentV
-    {\@xp\@gobble\string#2}\hexnumber@#1#4}%
-}
-\def\@tempa#1{\@xp\@tempb\meaning#1\@nil#1}
-\def\@tempb#1>#2#3 #4\@nil#5{%
-  \@xp\ifx\csname#3\endcsname\mathaccent
-    \@tempc#4?"7777\@nil#5%
-  \else
-    \PackageWarningNoLine{amsmath}{%
-      Unable to redefine math accent \string#5}%
-  \fi
-}
-\def\@tempc#1"#2#3#4#5#6\@nil#7{%
-  \chardef\@tempd="#3\relax\set@mathaccent\@tempd{#7}{#2}{#4#5}}
-\@tempa{\hat}
-\@tempa{\check}
-\@tempa{\tilde}
-\@tempa{\acute}
-\@tempa{\grave}
-\@tempa{\dot}
-\@tempa{\ddot}
-\@tempa{\breve}
-\@tempa{\bar}
-\@tempa{\vec}
-\@ifundefined{mathring}{%
-  \DeclareMathAccent{\mathring}{\mathalpha}{operators}{"17}
-}{%
-  \@tempa{\mathring}
-}
-%%\@tempa\widetilde
-%%\@tempa\widehat
-\newcommand{\acc@check}{}
-\newcommand{\acc@error}{}
-\def\acc@check{\@ifnextchar\@empty\relax\acc@error}
-\def\acc@error{%
-  \@amsmath@err{%
-    Improper argument for math accent:\MessageBreak
-    Extra braces must be added to prevent wrong output%
-  }\@ehc
-}
-\newcount\macc@depth
-\long\def\@gobblethree#1#2#3{}
-\def\mathaccentV#1#2#3#4#5{%
-  \ifmmode
-    \gdef\macc@tmp{\macc@depth\@ne}%
-    \setbox\z@\hbox{%
-      \let\mathaccentV\macc@test
-      \let\use@mathgroup\@gobbletwo \let\select@group\@gobblethree
-      \frozen@everymath{}$#5$%
-    }%
-    \macc@tmp
-    \ifnum\macc@depth=\@ne
-      \global\let\macc@nucleus\@empty
-      \mathaccent"\accentclass@
-    \else
-      \@xp\macc@nested
-    \fi
-    #2#3#4{#5}%
-    \macc@nucleus
-  \else
-    \@xp\nonmatherr@\csname#1\endcsname
-  \fi
-}
-\def\macc@test#1#2#3#4{\xdef\macc@tmp{\macc@tmp\advance\macc@depth\@ne}}
-\def\macc@group{-1}
-\def\macc@nested#1#2#3#4{%
-  \begingroup
-  \let\math@bgroup\@empty \let\math@egroup\macc@set@skewchar
-  \mathsurround\z@ \frozen@everymath{\mathgroup\macc@group\relax}%
-  \macc@set@skewchar\relax
-  \let\mathaccentV\macc@nested@a
-  \macc@nested@a\relax#1#2#3{#4}%
-  \endgroup
-}
-\let\macc@palette\mathpalette
-\def\macc@nested@a#1#2#3#4#5{%
-  \ifnum\macc@group=\mathgroup
-  \else \macc@set@skewchar\relax \edef\macc@group{\the\mathgroup}%
-  \fi
-  \mathchardef\macc@code "\accentclass@ #2#3#4\relax
-  \macc@palette\macc@a{#5}%
-}
-\def\macc@set@skewchar#1{%
-  \begingroup
-  \ifnum\mathgroup=\m@ne \let\@tempa\@ne
-  \else
-    \ifnum\skewchar\textfont\mathgroup=\m@ne \let\@tempa\@ne
-    \else \let\@tempa\mathgroup
-    \fi
-  \fi
-  \count@=\skewchar\textfont\@tempa
-  \advance\count@"7100
-  \edef\@tempa{\endgroup
-    \mathchardef\noexpand\macc@skewchar=\number\count@\relax}%
-  \@tempa
-  #1%
-}
-\def\macc@a#1#2{%
-  \begingroup
-  \let\macc@style#1\relax
-  \def\macc@palette##1{##1\macc@style}%
-  \advance\macc@depth\m@ne
-  \ifnum\macc@depth=\z@
-    \gdef\macc@nucleus{#2}%
-    \setbox\z@\hbox{$#1#2\@empty{}\macc@skewchar$}%
-    \setbox\tw@\hbox{$#1#2\@empty\macc@skewchar$}%
-    \dimen@\tw@\wd\tw@ \advance\dimen@-\tw@\wd\z@
-    \xdef\macc@kerna{\the\dimen@\relax}%
-    \setbox4\hbox{$#1#2\acc@check\@empty$}%
-    \global\setbox\@ne\hbox to\wd4{}%
-    \ht\@ne\ht4 \dp\@ne\dp4
-    \xdef\macc@kernb{\the\wd4\relax}%
-    \mathaccent\macc@code{\box\@ne\kern\macc@kerna}%
-  \else
-    \mathaccent\macc@code{\let\macc@adjust\@empty #1#2\@empty}%
-    \macc@adjust
-  \fi
-  \endgroup
-}
-\def\macc@adjust{%
-  \dimen@\macc@kerna\advance\dimen@\macc@kernb
-  \kern-\dimen@
-}
-\def\Hat{\hat}
-\def\Check{\check}
-\def\Tilde{\tilde}
-\def\Acute{\acute}
-\def\Grave{\grave}
-\def\Dot{\dot}
-\def\Ddot{\ddot}
-\def\Breve{\breve}
-\def\Bar{\bar}
-\def\Vec{\vec}
-\def\nonmatherr@#1{\@amsmath@err{\protect
-  #1 allowed only in math mode}\@ehd}
-\renewcommand{\bmod}{\nonscript\mskip-\medmuskip\mkern5mu\mathbin
-  {\operator@font mod}\penalty900
-  \mkern5mu\nonscript\mskip-\medmuskip}
-\newcommand{\pod}[1]{\allowbreak
-  \if@display\mkern18mu\else\mkern8mu\fi(#1)}
-\renewcommand{\pmod}[1]{\pod{{\operator@font mod}\mkern6mu#1}}
-\newcommand{\mod}[1]{\allowbreak\if@display\mkern18mu
-  \else\mkern12mu\fi{\operator@font mod}\,\,#1}
-\newcommand{\cfrac}[3][c]{{\displaystyle\frac{%
-  \strut\ifx r#1\hfill\fi#2\ifx l#1\hfill\fi}{#3}}%
-  \kern-\nulldelimiterspace}
-\newcommand{\overset}[2]{\binrel@{#2}%
-  \binrel@@{\mathop{\kern\z@#2}\limits^{#1}}}
-\newcommand{\underset}[2]{\binrel@{#2}%
-  \binrel@@{\mathop{\kern\z@#2}\limits_{#1}}}
-\newcommand{\sideset}[3]{%
-  \@mathmeasure\z@\displaystyle{#3}%
-  \global\setbox\@ne\vbox to\ht\z@{}\dp\@ne\dp\z@
-  \setbox\tw@\box\@ne
-  \@mathmeasure4\displaystyle{\copy\tw@#1}%
-  \@mathmeasure6\displaystyle{#3\nolimits#2}%
-  \dimen@-\wd6 \advance\dimen@\wd4 \advance\dimen@\wd\z@
-  \hbox to\dimen@{}\mathop{\kern-\dimen@\box4\box6}%
-}
-\renewcommand{\smash}[1][tb]{%
-  \def\mb@t{\ht}\def\mb@b{\dp}\def\mb@tb{\ht\z@\z@\dp}%
-  \edef\finsm@sh{\csname mb@#1\endcsname\z@\z@ \box\z@}%
-  \ifmmode \@xp\mathpalette\@xp\mathsm@sh
-  \else \@xp\makesm@sh
-  \fi
-}
-\mathchardef\std@minus\mathcode`\-\relax
-\mathchardef\std@equal\mathcode`\=\relax
-\AtBeginDocument{%
-  \mathchardef\std@minus\mathcode`\-\relax
-  \mathchardef\std@equal\mathcode`\=\relax
-}
-\def\relbar{\mathrel{\mathpalette\mathsm@sh\std@minus}}
-\def\Relbar{\mathrel\std@equal}
-\def\arrowfill@#1#2#3#4{%
-  $\m@th\thickmuskip0mu\medmuskip\thickmuskip\thinmuskip\thickmuskip
-   \relax#4#1\mkern-7mu%
-   \cleaders\hbox{$#4\mkern-2mu#2\mkern-2mu$}\hfill
-   \mkern-7mu#3$%
-}
-\def\leftarrowfill@{\arrowfill@\leftarrow\relbar\relbar}
-\def\rightarrowfill@{\arrowfill@\relbar\relbar\rightarrow}
-\def\leftrightarrowfill@{\arrowfill@\leftarrow\relbar\rightarrow}
-\def\Leftarrowfill@{\arrowfill@\Leftarrow\Relbar\Relbar}
-\def\Rightarrowfill@{\arrowfill@\Relbar\Relbar\Rightarrow}
-\def\Leftrightarrowfill@{\arrowfill@\Leftarrow\Relbar\Rightarrow}
-\def\overarrow@#1#2#3{\vbox{\ialign{##\crcr#1#2\crcr
- \noalign{\nointerlineskip}$\m@th\hfil#2#3\hfil$\crcr}}}
-\renewcommand{\overrightarrow}{%
-  \mathpalette{\overarrow@\rightarrowfill@}}
-\renewcommand{\overleftarrow}{%
-  \mathpalette{\overarrow@\leftarrowfill@}}
-\newcommand{\overleftrightarrow}{%
-  \mathpalette{\overarrow@\leftrightarrowfill@}}
-\def\underarrow@#1#2#3{%
- \vtop{\ialign{##\crcr$\m@th\hfil#2#3\hfil$\crcr
- \noalign{\nointerlineskip\kern1.3\ex@}#1#2\crcr}}}
-\newcommand{\underrightarrow}{%
-  \mathpalette{\underarrow@\rightarrowfill@}}
-\newcommand{\underleftarrow}{%
-  \mathpalette{\underarrow@\leftarrowfill@}}
-\newcommand{\underleftrightarrow}{%
-  \mathpalette{\underarrow@\leftrightarrowfill@}}
-\def\ext@arrow#1#2#3#4#5#6#7{%
-  \mathrel{\mathop{%
-    \setbox\z@\hbox{#5\displaystyle}%
-    \setbox\tw@\vbox{\m@th
-      \hbox{$\scriptstyle\mkern#3mu{#6}\mkern#4mu$}%
-      \hbox{$\scriptstyle\mkern#3mu{#7}\mkern#4mu$}%
-      \copy\z@
-    }%
-    \hbox to\wd\tw@{\unhbox\z@}}%
-  \limits
-    \@ifnotempty{#7}{^{\if0#1\else\mkern#1mu\fi
-                       #7\if0#2\else\mkern#2mu\fi}}%
-    \@ifnotempty{#6}{_{\if0#1\else\mkern#1mu\fi
-                       #6\if0#2\else\mkern#2mu\fi}}}%
-}
-\newcommand{\xrightarrow}[2][]{\ext@arrow 0359\rightarrowfill@{#1}{#2}}
-\newcommand{\xleftarrow}[2][]{\ext@arrow 3095\leftarrowfill@{#1}{#2}}
-\newenvironment{subarray}[1]{%
-  \vcenter\bgroup
-  \Let@ \restore@math@cr \default@tag
-  \baselineskip\fontdimen10 \scriptfont\tw@
-  \advance\baselineskip\fontdimen12 \scriptfont\tw@
-  \lineskip\thr@@\fontdimen8 \scriptfont\thr@@
-  \lineskiplimit\lineskip
-  \ialign\bgroup\ifx c#1\hfil\fi
-    $\m@th\scriptstyle##$\hfil\crcr
-}{%
-  \crcr\egroup\egroup
-}
-\newcommand{\substack}[1]{\subarray{c}#1\endsubarray}
-\newenvironment{smallmatrix}{\null\,\vcenter\bgroup
-  \Let@\restore@math@cr\default@tag
-  \baselineskip6\ex@ \lineskip1.5\ex@ \lineskiplimit\lineskip
-  \ialign\bgroup\hfil$\m@th\scriptstyle##$\hfil&&\thickspace\hfil
-  $\m@th\scriptstyle##$\hfil\crcr
-}{%
-  \crcr\egroup\egroup\,%
-}
-\renewenvironment{matrix}{%
-  \matrix@check\matrix\env@matrix
-}{%
-  \endarray \hskip -\arraycolsep
-}
-\def\env@matrix{\hskip -\arraycolsep
-  \let\@ifnextchar\new@ifnextchar
-  \array{*\c@MaxMatrixCols c}}
-\newcount\c@MaxMatrixCols \c@MaxMatrixCols=10
-\def\matrix@check#1{%
-  \@xp\ifx\csname\@currenvir\endcsname#1%
-  \else\matrix@error#1%
-    \@xp\@gobble
-  \fi
-}
-\def\matrix@error#1{%
-  \@amsmath@err{%
-Old form `\string#1' should be \string\begin{\@xp\@gobble\string#1}%
-  }{%
-`\string#1{...}' is old Plain-TeX syntax whose use is
-ill-advised in LaTeX.%
-  }%
-}
-\renewenvironment{pmatrix}{%
-  \left(%
-  \matrix@check\pmatrix\env@matrix
-}{
-  \endmatrix\right)%
-}
-\newenvironment{bmatrix}{\left[\env@matrix}{\endmatrix\right]}
-\newenvironment{Bmatrix}{%
-  \left\lbrace\env@matrix
-}{%
-  \endmatrix\right\rbrace
-}
-\newenvironment{vmatrix}{\left\lvert\env@matrix}{\endmatrix\right\rvert}
-\newenvironment{Vmatrix}{\left\lVert\env@matrix}{\endmatrix\right\rVert}
-\let\hdots\@ldots
-\newcommand{\hdotsfor}[1]{%
-  \ifx[#1\@xp\shdots@for\else\hdots@for\@ne{#1}\fi}
-\newmuskip\dotsspace@
-\def\shdots@for#1]{\hdots@for{#1}}
-\def\hdots@for#1#2{\multicolumn{#2}c%
-  {\m@th\dotsspace@1.5mu\mkern-#1\dotsspace@
-   \xleaders\hbox{$\m@th\mkern#1\dotsspace@.\mkern#1\dotsspace@$}%
-           \hfill
-   \mkern-#1\dotsspace@}%
-   }
-\renewenvironment{cases}{%
-  \matrix@check\cases\env@cases
-}{%
-  \endarray\right.%
-}
-\def\env@cases{%
-  \let\@ifnextchar\new@ifnextchar
-  \left\lbrace
-  \def\arraystretch{1.2}%
-  \array{@{}l@{\quad}l@{}}%
-}
-\newcounter{parentequation}% Counter for ``parent equation''.
-\@ifundefined{ignorespacesafterend}{%
-  \def\ignorespacesafterend{\global\@ignoretrue}%
-}{}
-\newenvironment{subequations}{%
-  \refstepcounter{equation}%
-  \protected@edef\theparentequation{\theequation}%
-  \setcounter{parentequation}{\value{equation}}%
-  \setcounter{equation}{0}%
-  \def\theequation{\theparentequation\alph{equation}}%
-  \ignorespaces
-}{%
-  \setcounter{equation}{\value{parentequation}}%
-  \ignorespacesafterend
-}
-\newcommand{\numberwithin}[3][\arabic]{%
-  \@ifundefined{c@#2}{\@nocounterr{#2}}{%
-    \@ifundefined{c@#3}{\@nocnterr{#3}}{%
-      \@addtoreset{#2}{#3}%
-      \@xp\xdef\csname the#2\endcsname{%
-        \@xp\@nx\csname the#3\endcsname .\@nx#1{#2}}}}%
-}
-\newcommand{\eqref}[1]{\textup{\tagform@{\ref{#1}}}}
-\newcount\dspbrk@lvl
-\dspbrk@lvl=-1
-\interdisplaylinepenalty\@M
-\newcommand{\allowdisplaybreaks}[1][4]{%
-  \interdisplaylinepenalty\getdsp@pen{#1}\relax
-}
-\def\getdsp@pen#1{%
-  \ifcase #1\@M \or 9999 \or 6999 \or 2999 \or \z@\fi
-}
-\newcommand{\displaybreak}{\new@ifnextchar[\dspbrk@{\dspbrk@[4]}}
-\chardef\dspbrk@context=\sixt@@n
-\def\dspbrk@[#1]{%
-  \ifmeasuring@
-  \else
-    \ifcase\dspbrk@context % case 0 --- OK
-      \global\dspbrk@lvl #1\relax
-    \or                    % case 1 --- inside a box
-      \nogood@displaybreak
-    \else                  % other cases --- outside of a display
-      \@amsmath@err{\Invalid@@\displaybreak}\@eha
-    \fi
-  \fi
-}
-\def\nogood@displaybreak{%
-  \@amsmath@err{\protect
-\displaybreak\space cannot be applied here}%
-{One of the enclosing environments creates an
-  unbreakable box\MessageBreak
-(e.g., split, aligned, gathered, ...).}%
-}
-\def\math@cr{\relax\iffalse{\fi\ifnum0=`}\fi
-  \@ifstar{\global\@eqpen\@M\math@cr@}%
-          {\global\@eqpen
-             \ifnum\dspbrk@lvl <\z@ \interdisplaylinepenalty
-              \else -\@getpen\dspbrk@lvl \fi
-           \math@cr@}}
-\def\math@cr@{\new@ifnextchar[\math@cr@@{\math@cr@@[\z@]}}
-\def\math@cr@@[#1]{\ifnum0=`{\fi \iffalse}\fi\math@cr@@@
-  \noalign{\vskip#1\relax}}
-\def\Let@{\let\\\math@cr}
-\def\restore@math@cr{\def\math@cr@@@{\cr}}
-\restore@math@cr
-\newcommand{\intertext}{\@amsmath@err{\Invalid@@\intertext}\@eha}
-\def\intertext@{%
-  \def\intertext##1{%
-    \ifvmode\else\\\@empty\fi
-    \noalign{%
-      \penalty\postdisplaypenalty\vskip\belowdisplayskip
-      \vbox{\normalbaselines
-        \ifdim\linewidth=\columnwidth
-        \else \parshape\@ne \@totalleftmargin \linewidth
-        \fi
-        \noindent##1\par}%
-      \penalty\predisplaypenalty\vskip\abovedisplayskip%
-    }%
-}}
-\newhelp\tag@help
-  {tag cannot be used at this point.\space
-   If you don't understand why^^Jyou should consult
-   the documentation.^^JBut don't worry: just continue, and I'll
-   forget what happened.}
-\def\gobble@tag{\@ifstar\@gobble\@gobble}
-\def\invalid@tag#1{\@amsmath@err{#1}{\the\tag@help}\gobble@tag}
-\def\dft@tag{\invalid@tag{\string\tag\space not allowed here}}
-\def\default@tag{\let\tag\dft@tag}
-\default@tag
-\def\maketag@@{\@ifstar\maketag@@@\tagform@}
-\def\maketag@@@#1{\hbox{\m@th\normalfont#1}}
-\def\tagform@#1{\maketag@@@{(\ignorespaces#1\unskip\@@italiccorr)}}
-\iftagsleft@
-  \def\@eqnnum{\hbox to1sp{}\rlap{\normalfont\normalcolor
-    \hskip -\displaywidth\tagform@\theequation}}
-\else
-  \def\@eqnnum{{\normalfont\normalcolor \tagform@\theequation}}
-\fi
-\newcommand{\thetag}{\leavevmode\tagform@}
-\let\df@tag\@empty
-\def\make@df@tag{\@ifstar\make@df@tag@@\make@df@tag@@@}
-\def\make@df@tag@@#1{%
-  \gdef\df@tag{\maketag@@@{#1}\def\@currentlabel{#1}}}
-\def\make@df@tag@@@#1{\gdef\df@tag{\tagform@{#1}%
-  \toks@\@xp{\p@equation{#1}}\edef\@currentlabel{\the\toks@}}}
-\let\ltx@label\label
-\def\label@in@display{%
-    \ifx\df@label\@empty\else
-        \@amsmath@err{Multiple \string\label's:
-            label '\df@label' will be lost}\@eha
-    \fi
-    \gdef\df@label
-}
-\toks@\@xp{\@arrayparboxrestore \let\label\ltx@label}%
-\edef\@arrayboxrestore{\the\toks@}
-\let\df@label\@empty
-\def\make@display@tag{%
-  \if@eqnsw \incr@eqnum \print@eqnum
-  \else \iftag@ \df@tag \global\let\df@tag\@empty \fi
-  \fi
-  \ifmeasuring@
-  \else
-    \ifx\df@label\@empty
-    \else
-      \@xp\ltx@label\@xp{\df@label}%
-      \global\let\df@label\@empty
-    \fi
-  \fi
-}
-\def\tag@in@align{%
-    \relax
-    \iftag@
-        \DN@{\invalid@tag{Multiple \string\tag}}%
-    \else
-    \global\tag@true
-    \nonumber
-        \let\next@\make@df@tag
-    \fi
-    \next@
-}
-\newcommand{\raisetag}[1]{\skip@#1\relax
-  \xdef\raise@tag{\vskip\iftagsleft@\else-\fi\the\skip@\relax}%
-}
-\let\raise@tag\@empty
-\newcommand{\notag}{\nonumber}
-\renewcommand{\nonumber}{%
-  \if@eqnsw
-    \ifx\incr@eqnum\@empty \addtocounter{equation}\m@ne \fi
-  \fi
-  \let\print@eqnum\@empty \let\incr@eqnum\@empty
-  \global\@eqnswfalse
-}
-\def\print@eqnum{\tagform@\theequation}
-\def\incr@eqnum{\refstepcounter{equation}\let\incr@eqnum\@empty}
-\newif\ifinalign@
-\newif\ifingather@
-\@xp\def\@xp\@arrayparboxrestore\@xp{\@arrayparboxrestore
-  \ingather@false\inalign@false \default@tag
-  \let\spread@equation\@spread@equation
-  \let\reset@equation\@empty
-  \def\print@eqnum{\tagform@\theequation}%
-  \def\incr@eqnum{\refstepcounter{equation}\let\incr@eqnum\@empty}%
-}
-\newif\iftag@
-\newif\ifst@rred
-\newif\ifmeasuring@
-\newif\ifshifttag@
-\newcount\row@
-\newcount\column@
-\def\column@plus{%
-    \global\advance\column@\@ne
-}
-\newcount\maxfields@
-\def\add@amp#1{\if m#1&\@xp\add@amp\fi}
-\def\add@amps#1{%
-    \begingroup
-    \count@#1\advance\count@-\column@
-    \edef\@tempa{\endgroup
-      \@xp\add@amp\romannumeral\number\count@ 000q}%
-    \@tempa
-}
-\newhelp\andhelp@
-{An extra & here is so disastrous that you should probably exit^^J
-and fix things up.}
-\newdimen\eqnshift@
-\newdimen\alignsep@
-\newdimen\tagshift@
-\newcommand{\mintagsep}{.5\fontdimen6\textfont\tw@}
-\newcommand{\minalignsep}{10pt}
-\newdimen\tagwidth@
-\newdimen\totwidth@
-\newdimen\lineht@
-\def\tag@width#1{%
-    \ifcase\@xp#1\tag@lengths\fi
-}
-
-\def\savetaglength@{%
-    \begingroup
-        \let\or\relax
-        \xdef\tag@lengths{\tag@lengths\or \the\wdz@}%
-    \endgroup
-}
-
-\def\shift@tag#1{%
-    \ifcase\@xp#1\tag@shifts\fi\relax
-}
-
-\let\tag@shifts\@empty
-\def\saveshift@#1{%
-    \begingroup
-        \let\or\relax
-        \xdef\tag@shifts{\or#1\tag@shifts}%
-    \endgroup
-}
-\def\spread@equation{\reset@strutbox@
-  \openup\jot \let\spread@equation\@empty}
-\let\@spread@equation\spread@equation
-\def\displ@y{\@display@init{}}
-\def\@display@init#1{%
-    \global\dt@ptrue \spread@equation
-    \everycr{%
-        \noalign{%
-            #1%
-            \ifdt@p
-                \global\dt@pfalse
-                \vskip-\lineskiplimit
-                \vskip\normallineskiplimit
-            \else
-                \penalty\@eqpen \global\dspbrk@lvl\m@ne
-            \fi
-        }%
-    }%
-}
-\def\displ@y@{\@display@init{%
-  \global\column@\z@ \global\dspbrk@lvl\m@ne
-  \global\tag@false \global\let\raise@tag\@empty
-}}
-\def\black@#1{%
-    \noalign{%
-        \ifdim#1>\displaywidth
-            \dimen@\prevdepth
-            \nointerlineskip
-            \vskip-\ht\strutbox@
-            \vskip-\dp\strutbox@
-            \vbox{\noindent\hbox to#1{\strut@\hfill}}%
-            \prevdepth\dimen@
-        \fi
-    }%
-}
-\def\savecounters@{%
-    \begingroup
-        \def\@elt##1{%
-          \global\csname c@##1\endcsname\the\csname c@##1\endcsname}%
-        \xdef\@gtempa{%
-            \cl@@ckpt
-            \let\@nx\restorecounters@\@nx\@empty
-        }%
-    \endgroup
-    \let\restorecounters@\@gtempa
-}
-\let\restorecounters@\@empty
-\def\savealignstate@{%
-    \begingroup
-        \let\or\relax
-        \xdef\@gtempa{%
-            \global\totwidth@\the\totwidth@
-            \global\row@\the\row@
-            \gdef\@nx\tag@lengths{\tag@lengths}%
-            \let\@nx\restorealignstate@\@nx\@empty
-        }%
-    \endgroup
-    \let\restorealignstate@\@gtempa
-}
-
-\let\restorealignstate@\@empty
-\def\savecolumn@{%
-  \edef\restorecolumn@{%
-    \global\column@\number\column@
-    \let\@nx\restorecolumn@\@nx\@empty
-  }%
-}
-\let\restorecolumn@\@empty
-\newtoks\@envbody
-\def\addto@envbody#1{\global\@envbody\@xp{\the\@envbody#1}}
-\def\collect@body#1{%
-  \@envbody{\@xp#1\@xp{\the\@envbody}}%
-  \edef\process@envbody{\the\@envbody\@nx\end{\@currenvir}}%
-  \@envbody\@emptytoks \def\begin@stack{b}%
-  \begingroup
-  \@xp\let\csname\@currenvir\endcsname\collect@@body
-  \edef\process@envbody{\@xp\@nx\csname\@currenvir\endcsname}%
-  \process@envbody
-}
-\def\push@begins#1\begin#2{%
-  \ifx\end#2\else b\@xp\push@begins\fi
-}
-\def\collect@@body#1\end#2{%
-  \edef\begin@stack{\push@begins#1\begin\end \@xp\@gobble\begin@stack}%
-  \ifx\@empty\begin@stack
-    \endgroup
-    \@checkend{#2}%
-    \addto@envbody{#1}%
-  \else
-    \addto@envbody{#1\end{#2}}%
-  \fi
-  \process@envbody % A little tricky! Note the grouping
-}
-\def\math@cr@@@aligned{%
-  \ifodd\column@ \let\next@\@empty
-  \else \def\next@{&\kern-\alignsep@}%
-  \fi
-  \next@ \cr
-}
-\newcommand{\start@aligned}[2]{%
-    \RIfM@\else
-        \nonmatherr@{\begin{\@currenvir}}%
-    \fi
-    \savecolumn@ % Assumption: called inside a group
-    \null\,%
-    \if #1t\vtop \else \if#1b \vbox \else \vcenter \fi \fi \bgroup
-        \maxfields@#2\relax
-        \ifnum\maxfields@>\m@ne
-            \multiply\maxfields@\tw@
-            \let\math@cr@@@\math@cr@@@alignedat
-            \alignsep@\z@skip
-        \else
-            \let\math@cr@@@\math@cr@@@aligned
-            \alignsep@\minalignsep
-        \fi
-        \Let@ \chardef\dspbrk@context\@ne
-        \default@tag
-        \spread@equation % no-op if already called
-        \global\column@\z@
-        \ialign\bgroup
-           &\column@plus
-            \hfil
-            \strut@
-            $\m@th\displaystyle{##}$%
-            \tabskip\z@skip
-           &\column@plus
-            $\m@th\displaystyle{{}##}$%
-            \hfil
-            \tabskip\alignsep@
-            \crcr
-}
-\def\math@cr@@@alignedat{%
-    \ifnum\column@>\maxfields@
-        \begingroup
-          \measuring@false
-          \@amsmath@err{Extra & on this line}%
-            {\the\andhelp@}% "An extra & here is disastrous"
-        \endgroup
-    \fi
-    \global\column@\z@
-    \cr
-}
-\def\alignsafe@testopt#1#2{%
-  \relax\iffalse{\fi\ifnum`}=0\fi
-  \@ifnextchar[%
-    {\let\@let@token\relax \ifnum`{=\z@\fi\iffalse}\fi#1}%
-    {\let\@let@token\relax \ifnum`{=\z@\fi\iffalse}\fi#1[#2]}%
-}
-\newenvironment{aligned}{%
-  \let\@testopt\alignsafe@testopt
-  \aligned@a
-}{%
-  \crcr\egroup
-  \restorecolumn@
-  \egroup
-}
-\newcommand{\aligned@a}[1][c]{\start@aligned{#1}\m@ne}
-\newenvironment{alignedat}{%
-  \let\@testopt\alignsafe@testopt
-  \alignedat@a
-}{%
-  \endaligned
-}
-\newcommand{\alignedat@a}[1][c]{\start@aligned{#1}}
-\newenvironment{gathered}[1][c]{%
-    \RIfM@\else
-        \nonmatherr@{\begin{gathered}}%
-    \fi
-    \null\,%
-    \if #1t\vtop \else \if#1b\vbox \else \vcenter \fi\fi \bgroup
-        \Let@ \chardef\dspbrk@context\@ne \restore@math@cr
-        \spread@equation
-        \ialign\bgroup
-            \hfil\strut@$\m@th\displaystyle##$\hfil
-            \crcr
-}{%
-  \endaligned
-}
-\def\start@gather#1{%
-    \RIfM@
-        \nomath@env
-        \DN@{\@namedef{end\@currenvir}{}\@gobble}%
-    \else
-        $$%
-        #1%
-        \ifst@rred \else \global\@eqnswtrue \fi
-        \let\next@\gather@
-    \fi
-    \collect@body\next@
-}
-\newenvironment{gather}{%
-  \start@gather\st@rredfalse
-}{%
-  \math@cr \black@\totwidth@ \egroup
-  $$\ignorespacesafterend
-}
-
-\newenvironment{gather*}{%
-  \start@gather\st@rredtrue
-}{%
-  \endgather
-}
-\def\gather@#1{%
-    \ingather@true \let\split\insplit@
-    \let\tag\tag@in@align \let\label\label@in@display
-    \chardef\dspbrk@context\z@
-    \intertext@ \displ@y@ \Let@
-    \let\math@cr@@@\math@cr@@@gather
-    \gmeasure@{#1}%
-    \global\shifttag@false
-    \tabskip\z@skip
-    \global\row@\@ne
-    \halign to\displaywidth\bgroup
-        \strut@
-        \setboxz@h{$\m@th\displaystyle{##}$}%
-        \calc@shift@gather
-        \set@gather@field
-        \tabskip\@centering
-       &\setboxz@h{\strut@{##}}%
-        \place@tag@gather
-        \tabskip \iftagsleft@ \gdisplaywidth@ \else \z@skip \span\fi
-        \crcr
-        #1%
-}
-\def\gmeasure@#1{%
-    \begingroup
-        \measuring@true
-        \totwidth@\z@
-        \global\let\tag@lengths\@empty
-        \savecounters@
-        \setbox\@ne\vbox{%
-            \everycr{\noalign{\global\tag@false
-              \global\let\raise@tag\@empty \global\column@\z@}}%
-            \let\label\@gobble
-            \halign{%
-                \setboxz@h{$\m@th\displaystyle{##}$}%
-                \ifdim\wdz@>\totwidth@
-                    \global\totwidth@\wdz@
-                \fi
-               &\setboxz@h{\strut@{##}}%
-                \savetaglength@
-                \crcr
-                #1%
-                \math@cr@@@
-            }%
-        }%
-        \restorecounters@
-        \if@fleqn
-            \global\advance\totwidth@\@mathmargin
-        \fi
-        \iftagsleft@
-            \ifdim\totwidth@>\displaywidth
-                \global\let\gdisplaywidth@\totwidth@
-            \else
-                \global\let\gdisplaywidth@\displaywidth
-            \fi
-        \fi
-    \endgroup
-}
-\def\math@cr@@@gather{%
-    \ifst@rred\nonumber\fi
-   &\relax
-    \make@display@tag
-    \ifst@rred\else\global\@eqnswtrue\fi
-    \global\advance\row@\@ne
-    \cr
-}
-\def\calc@shift@gather{%
-    \dimen@\mintagsep\relax
-    \tagwidth@\tag@width\row@\relax
-    \if@fleqn
-        \global\eqnshift@\@mathmargin
-        \ifdim\tagwidth@>\z@
-            \advance\dimen@\tagwidth@
-            \iftagsleft@
-                \ifdim\dimen@>\@mathmargin
-                    \global\shifttag@true
-                \fi
-            \else
-                \advance\dimen@\@mathmargin
-                \advance\dimen@\wdz@
-                \ifdim\dimen@>\displaywidth
-                   \global\shifttag@true
-                \fi
-            \fi
-        \fi
-    \else
-        \global\eqnshift@\displaywidth
-        \global\advance\eqnshift@-\wdz@
-        \ifdim\tagwidth@>\z@
-            \multiply\dimen@\tw@
-            \advance\dimen@\wdz@
-            \advance\dimen@\tagwidth@
-            \ifdim\dimen@>\displaywidth
-                \global\shifttag@true
-            \else
-                \ifdim\eqnshift@<4\tagwidth@
-                    \global\advance\eqnshift@-\tagwidth@
-                \fi
-            \fi
-        \fi
-        \global\divide\eqnshift@\tw@
-        \iftagsleft@
-            \global\eqnshift@-\eqnshift@
-            \global\advance\eqnshift@\displaywidth
-            \global\advance\eqnshift@-\wdz@
-        \fi
-        \ifdim\eqnshift@<\z@
-            \global\eqnshift@\z@
-        \fi
-    \fi
-}
-\def\place@tag@gather{%
-    \iftagsleft@
-        \kern-\gdisplaywidth@
-        \ifshifttag@
-            \rlap{\vbox{%
-                \normalbaselines
-                \boxz@
-                \vbox to\lineht@{}%
-                \raise@tag
-            }}%
-            \global\shifttag@false
-        \else
-            \rlap{\boxz@}%
-        \fi
-    \else
-        \ifdim\totwidth@>\displaywidth
-            \dimen@\totwidth@
-            \advance\dimen@-\displaywidth
-            \kern-\dimen@
-        \fi
-        \ifshifttag@
-            \llap{\vtop{%
-                \raise@tag
-                \normalbaselines
-                \setbox\@ne\null
-                \dp\@ne\lineht@
-                \box\@ne
-                \boxz@
-            }}%
-            \global\shifttag@false
-        \else
-            \llap{\boxz@}%
-        \fi
-    \fi
-}
-\def\set@gather@field{%
-    \iftagsleft@
-        \global\lineht@\ht\z@
-    \else
-        \global\lineht@\dp\z@
-    \fi
-    \kern\eqnshift@
-    \boxz@
-    \hfil
-}
-\newif\ifxxat@
-
-\newif\ifcheckat@
-
-\let\xatlevel@\@empty
-\def\start@align#1#2#3{%
-    \let\xatlevel@#1% always \z@, \@ne, or \tw@
-    \maxfields@#3\relax
-    \ifnum\maxfields@>\m@ne
-        \checkat@true
-        \ifnum\xatlevel@=\tw@
-            \xxat@true
-        \fi
-        \multiply\maxfields@\tw@
-    \else
-        \checkat@false
-    \fi
-    \ifingather@
-        \iffalse{\fi\ifnum0=`}\fi
-        \DN@{\vcenter\bgroup\savealignstate@\align@#2}%
-    \else
-        \ifmmode
-          \if@display
-             \DN@{\align@recover}%
-          \else
-            \nomath@env
-            \DN@{\@namedef{end\@currenvir}{}\@gobble}%
-          \fi
-        \else
-            $$%
-            \let\split\insplit@
-            \DN@{\align@#2}%
-        \fi
-    \fi
-    \collect@body\next@
-}
-\def\align@recover#1#2#3{%
-  \endgroup
-  \@amsmath@err{%
-Erroneous nesting of equation structures;\MessageBreak
-trying to recover with `aligned'%
-  }\@ehc
-  \begin{aligned}\relax#1\end{aligned}%
-}
-\newenvironment{alignat}{%
-  \start@align\z@\st@rredfalse
-}{%
-  \endalign
-}
-\newenvironment{alignat*}{%
-  \start@align\z@\st@rredtrue
-}{%
-  \endalign
-}
-\newenvironment{xalignat}{%
-  \start@align\@ne\st@rredfalse
-}{%
-  \endalign
-}
-\newenvironment{xalignat*}{%
-  \start@align\@ne\st@rredtrue
-}{%
-  \endalign
-}
-\newenvironment{xxalignat}{%
-  \start@align\tw@\st@rredtrue
-}{%
-  \endalign
-}
-\newenvironment{align}{%
-  \start@align\@ne\st@rredfalse\m@ne
-}{%
-  \math@cr \black@\totwidth@
-  \egroup
-  \ifingather@
-    \restorealignstate@
-    \egroup
-    \nonumber
-    \ifnum0=`{\fi\iffalse}\fi
-  \else
-    $$%
-  \fi
-  \ignorespacesafterend
-}
-\newenvironment{align*}{%
-  \start@align\@ne\st@rredtrue\m@ne
-}{%
-  \endalign
-}
-\newenvironment{flalign}{%
-  \start@align\tw@\st@rredfalse\m@ne
-}{%
-  \endalign
-}
-\newenvironment{flalign*}{%
-  \start@align\tw@\st@rredtrue\m@ne
-}{%
-  \endalign
-}
-\def\align@#1#2{%
-    \inalign@true \intertext@ \Let@ \chardef\dspbrk@context\z@
-    \ifingather@\else\displ@y@\fi
-    \let\math@cr@@@\math@cr@@@align
-    \ifxxat@\else \let\tag\tag@in@align \fi
-    \let\label\label@in@display
-    #1% set st@r
-    \ifst@rred\else \global\@eqnswtrue \fi
-    \measure@{#2}%
-    \global\row@\z@
-    \tabskip\eqnshift@
-    \halign\bgroup
-        \span\align@preamble\crcr
-        #2%
-}
-\def\math@cr@@@align{%
-  \ifst@rred\nonumber\fi
-  \if@eqnsw \global\tag@true \fi
-  \global\advance\row@\@ne
-  \add@amps\maxfields@
-  \omit
-  \kern-\alignsep@
-  \iftag@
-    \setboxz@h{\@lign\strut@{\make@display@tag}}%
-    \place@tag
-  \fi
-  \ifst@rred\else\global\@eqnswtrue\fi
-  \global\lineht@\z@
-  \cr
-}
-\def\math@cr@@@align@measure{%
-   &\omit
-    \global\advance\row@\@ne
-    \ifst@rred\nonumber\fi
-    \if@eqnsw \global\tag@true \fi
-    \ifnum\column@>\maxfields@
-        \ifcheckat@
-            \begingroup
-              \measuring@false
-              \@amsmath@err{Extra & on this line}%
-                {\the\andhelp@}% "An extra & here is disastrous"
-            \endgroup
-        \else
-            \global\maxfields@\column@
-        \fi
-    \fi
-    \setboxz@h{\@lign\strut@{%
-        \if@eqnsw
-            \stepcounter{equation}%
-            \tagform@\theequation
-        \else
-            \iftag@\df@tag\fi
-        \fi
-    }}%
-    \savetaglength@
-    \ifst@rred\else\global\@eqnswtrue\fi
-    \cr
-}
-\let\field@lengths\@empty
-
-\def\savefieldlength@{%
-    \begingroup
-        \let\or\relax
-        \xdef\field@lengths{%
-            \field@lengths
-            \ifnum\column@=0
-                \or
-            \else
-                ,%
-            \fi
-            \the\wdz@
-        }%
-    \endgroup
-}
-
-\def\fieldlengths@#1{%
-    \ifcase\@xp#1\field@lengths\fi
-}
-\let\maxcolumn@widths\@empty
-\def\maxcol@width#1{%
-    \ifcase\@xp#1\maxcolumn@widths\fi\relax
-}
-\def\measure@#1{%
-    \begingroup
-        \measuring@true
-        \global\eqnshift@\z@
-        \global\alignsep@\z@
-        \global\let\tag@lengths\@empty
-        \global\let\field@lengths\@empty
-        \savecounters@
-        \global\setbox0\vbox{%
-            \let\math@cr@@@\math@cr@@@align@measure
-            \everycr{\noalign{\global\tag@false
-              \global\let\raise@tag\@empty \global\column@\z@}}%
-            \let\label\@gobble
-            \global\row@\z@
-            \tabskip\z@
-            \halign{\span\align@preamble\crcr
-                #1%
-                \math@cr@@@
-                \global\column@\z@
-                \add@amps\maxfields@\cr
-            }%
-        }%
-        \restorecounters@
-        \ifodd\maxfields@
-            \global\advance\maxfields@\@ne
-        \fi
-        \ifnum\xatlevel@=\tw@
-            \ifnum\maxfields@<\thr@@
-                \let\xatlevel@\z@
-            \fi
-        \fi
-        \setbox\z@\vbox{%
-          \unvbox\z@ \unpenalty \global\setbox\@ne\lastbox
-        }%
-        \global\totwidth@\wd\@ne
-        \if@fleqn \global\advance\totwidth@\@mathmargin \fi
-        \global\let\maxcolumn@widths\@empty
-        \begingroup
-          \let\or\relax
-          \loop
-            \global\setbox\@ne\hbox{%
-              \unhbox\@ne \unskip \global\setbox\thr@@\lastbox
-            }%
-          \ifhbox\thr@@
-           \xdef\maxcolumn@widths{ \or \the\wd\thr@@ \maxcolumn@widths}%
-          \repeat
-        \endgroup
-        \dimen@\displaywidth
-        \advance\dimen@-\totwidth@
-        \ifcase\xatlevel@
-            \global\alignsep@\z@
-            \let\minalignsep\z@
-            \@tempcntb\z@
-            \if@fleqn
-                \@tempcnta\@ne
-                \global\eqnshift@\@mathmargin
-            \else
-                \@tempcnta\tw@
-                \global\eqnshift@\dimen@
-                \global\divide\eqnshift@\@tempcnta
-            \fi
-        \or
-            \@tempcntb\maxfields@
-            \divide\@tempcntb\tw@
-            \@tempcnta\@tempcntb
-            \advance\@tempcntb\m@ne
-            \if@fleqn
-                \global\eqnshift@\@mathmargin
-                \global\alignsep@\dimen@
-                \global\divide\alignsep@\@tempcnta
-            \else
-                \global\advance\@tempcnta\@ne
-                \global\eqnshift@\dimen@
-                \global\divide\eqnshift@\@tempcnta
-                \global\alignsep@\eqnshift@
-            \fi
-        \or
-            \@tempcntb\maxfields@
-            \divide\@tempcntb\tw@
-            \global\advance\@tempcntb\m@ne
-            \global\@tempcnta\@tempcntb
-            \global\eqnshift@\z@
-            \global\alignsep@\dimen@
-            \if@fleqn
-                \global\advance\alignsep@\@mathmargin\relax
-            \fi
-            \global\divide\alignsep@\@tempcntb
-        \fi
-        \ifdim\alignsep@<\minalignsep\relax
-            \global\alignsep@\minalignsep\relax
-            \ifdim\eqnshift@>\z@
-                \if@fleqn\else
-                    \global\eqnshift@\displaywidth
-                    \global\advance\eqnshift@-\totwidth@
-                    \global\advance\eqnshift@-\@tempcntb\alignsep@
-                    \global\divide\eqnshift@\tw@
-                \fi
-            \fi
-        \fi
-        \ifdim\eqnshift@<\z@
-            \global\eqnshift@\z@
-        \fi
-        \calc@shift@align
-        \global\tagshift@\totwidth@
-        \global\advance\tagshift@\@tempcntb\alignsep@
-        \if@fleqn
-            \ifnum\xatlevel@=\tw@
-                \global\advance\tagshift@-\@mathmargin\relax
-            \fi
-        \else
-            \global\advance\tagshift@\eqnshift@
-        \fi
-        \iftagsleft@ \else
-            \global\advance\tagshift@-\displaywidth
-        \fi
-        \dimen@\minalignsep\relax
-        \global\advance\totwidth@\@tempcntb\dimen@
-        \ifdim\totwidth@>\displaywidth
-            \global\let\displaywidth@\totwidth@
-        \else
-            \global\let\displaywidth@\displaywidth
-        \fi
-    \endgroup
-}
-\iftagsleft@\if@fleqn
-    \def\calc@shift@align{%
-        \global\let\tag@shifts\@empty
-        \begingroup
-            \@tempdima\@mathmargin\relax
-            \advance\@tempdima-\mintagsep\relax
-            \loop
-                \ifnum\row@>0
-                    \ifdim\tag@width\row@>\z@
-                        \x@calc@shift@lf
-                    \else
-                        \saveshift@0%
-                    \fi
-                    \advance\row@\m@ne
-            \repeat
-        \endgroup
-    }
-    \def\x@calc@shift@lf{%
-        \ifdim\eqnshift@=\z@
-            \global\eqnshift@\@mathmargin\relax
-            \alignsep@\displaywidth
-            \advance\alignsep@-\totwidth@
-            \global\divide\alignsep@\@tempcntb
-            \ifdim\alignsep@<\minalignsep\relax
-                \global\alignsep@\minalignsep\relax
-            \fi
-        \fi
-        \ifdim\tag@width\row@>\@tempdima
-            \saveshift@1%
-        \else
-            \saveshift@0%
-        \fi
-    }
-\fi\fi
-\iftagsleft@\else\if@fleqn
-    \def\calc@shift@align{%
-        \global\let\tag@shifts\@empty
-        \begingroup
-            \loop
-                \ifnum\row@>0
-                    \ifdim\tag@width\row@>\z@
-                        \x@calc@shift@rf
-                    \else
-                        \saveshift@0%
-                    \fi
-                    \advance\row@\m@ne
-            \repeat
-        \endgroup
-    }
-    \def\x@calc@shift@rf{%
-        \column@\z@
-        \@tempdimb\z@
-        \@tempdimc\z@
-        \edef\@tempb{\fieldlengths@\row@}%
-        \@for\@tempa:=\@tempb\do{%
-            \advance\column@\@ne
-            \x@rcalc@width
-        }%
-        \begingroup
-            \advance\column@\m@ne
-            \divide\column@\tw@
-            \ifnum\@tempcntb>\column@
-                \advance\@tempcnta-\@tempcntb
-                \advance\@tempcnta\column@
-                \@tempcntb\column@
-            \fi
-            \tagwidth@\tag@width\row@\relax
-            \@tempdima\eqnshift@
-            \advance\@tempdima\@tempdimc\relax
-            \advance\@tempdima\tagwidth@
-            \dimen@\minalignsep\relax
-            \multiply\dimen@\@tempcntb
-            \advance\dimen@\mintagsep\relax
-            \advance\dimen@\@tempdima
-            \ifdim\dimen@>\displaywidth
-                \saveshift@1%
-            \else
-                \saveshift@0%
-                \dimen@\alignsep@\relax
-                \multiply\dimen@\@tempcntb
-                \advance\dimen@\@tempdima
-                \advance\dimen@\tagwidth@
-                \ifdim\dimen@>\displaywidth
-                    \dimen@\displaywidth
-                    \advance\dimen@-\@tempdima
-                    \ifnum\xatlevel@=\tw@
-                        \advance\dimen@-\mintagsep\relax
-                    \fi
-                    \divide\dimen@\@tempcnta
-                    \ifdim\dimen@<\minalignsep\relax
-                        \global\alignsep@\minalignsep\relax
-                    \else
-                        \global\alignsep@\dimen@
-                    \fi
-                \fi
-            \fi
-        \endgroup
-    }
-\fi\fi
-\iftagsleft@\else\if@fleqn\else
-    \def\calc@shift@align{%
-        \global\let\tag@shifts\@empty
-        \begingroup
-            \loop
-                \ifnum\row@>0
-                    \ifdim\tag@width\row@>\z@
-                        \x@calc@shift@rc
-                    \else
-                        \saveshift@0%
-                    \fi
-                    \advance\row@\m@ne
-            \repeat
-        \endgroup
-    }
-    \def\x@calc@shift@rc{%
-        \column@\z@
-        \@tempdimb\z@
-        \@tempdimc\z@
-        \edef\@tempb{\fieldlengths@\row@}%
-        \@for\@tempa:=\@tempb\do{%
-            \advance\column@\@ne
-            \x@rcalc@width
-        }%
-        \begingroup
-            \advance\column@\m@ne
-            \divide\column@\tw@
-            \ifnum\@tempcntb>\column@
-                \advance\@tempcnta-\@tempcntb
-                \advance\@tempcnta\column@
-                \@tempcntb\column@
-            \fi
-            \tagwidth@\tag@width\row@\relax
-            \@tempdima\@tempdimc
-            \advance\@tempdima\tagwidth@
-            \dimen@\minalignsep\relax
-            \multiply\dimen@\@tempcntb
-            \advance\dimen@\mintagsep\relax
-            \ifnum\xatlevel@=\tw@ \else
-                \advance\dimen@\mintagsep\relax
-            \fi
-            \advance\dimen@\@tempdima
-            \ifdim\dimen@>\displaywidth
-                \saveshift@1%
-            \else
-                \saveshift@0%
-                \dimen@\eqnshift@
-                \advance\dimen@\@tempdima
-                \advance\dimen@\@tempcntb\alignsep@
-                \advance\dimen@\tagwidth@
-                \ifdim\dimen@>\displaywidth
-                    \dimen@\displaywidth
-                    \advance\dimen@-\@tempdima
-                    \ifnum\xatlevel@=\tw@
-                        \advance\dimen@-\mintagsep\relax
-                    \fi
-                    \divide\dimen@\@tempcnta
-                    \ifdim\dimen@<\minalignsep\relax
-                        \global\alignsep@\minalignsep\relax
-                        \eqnshift@\displaywidth
-                        \advance\eqnshift@-\@tempdima
-                        \advance\eqnshift@-\@tempcntb\alignsep@
-                        \global\divide\eqnshift@\tw@
-                    \else
-                        \ifdim\dimen@<\eqnshift@
-                            \ifdim\dimen@<\z@
-                                \global\eqnshift@\z@
-                            \else
-                                \global\eqnshift@\dimen@
-                            \fi
-                        \fi
-                        \ifdim\dimen@<\alignsep@
-                            \global\alignsep@\dimen@
-                        \fi
-                    \fi
-                \fi
-            \fi
-        \endgroup
-    }
-\fi\fi
-\iftagsleft@\else
-    \def\x@rcalc@width{%
-        \ifdim\@tempa > \z@
-            \advance\@tempdimc\@tempdimb
-            \ifodd\column@
-                \advance\@tempdimc\maxcol@width\column@
-                \@tempdimb\z@
-            \else
-                \advance\@tempdimc\@tempa\relax
-                \@tempdimb\maxcol@width\column@
-                \advance\@tempdimb-\@tempa\relax
-            \fi
-        \else
-            \advance\@tempdimb\maxcol@width\column@\relax
-        \fi
-    }
-\fi
-\iftagsleft@\if@fleqn\else
-    \def\calc@shift@align{%
-        \global\let\tag@shifts\@empty
-        \begingroup
-            \loop
-                \ifnum\row@>\z@
-                    \ifdim\tag@width\row@>\z@
-                        \x@calc@shift@lc
-                    \else
-                        \saveshift@0%
-                    \fi
-                    \advance\row@\m@ne
-            \repeat
-        \endgroup
-    }
-    \def\x@calc@shift@lc{%
-        \column@\z@
-        \@tempdima\z@ % ``width of equation''
-        \@tempdimb\z@ % ``indent of equation''
-        \edef\@tempb{\fieldlengths@\row@}%
-        \@for\@tempa:=\@tempb\do{%
-            \advance\column@\@ne
-            \x@lcalc@width
-        }%
-        \begingroup
-            \tagwidth@\tag@width\row@\relax
-            \@tempdima\totwidth@
-            \advance\@tempdima-\@tempdimb
-            \advance\@tempdima\tagwidth@
-            \dimen@\minalignsep\relax
-            \multiply\dimen@\@tempcntb
-            \advance\dimen@\mintagsep\relax
-            \ifnum\xatlevel@=\tw@ \else
-                \advance\dimen@\mintagsep\relax
-            \fi
-            \advance\dimen@\@tempdima
-            \ifdim\dimen@>\displaywidth
-                \saveshift@1%
-            \else
-                \saveshift@0%
-                \dimen@\alignsep@
-                \multiply\dimen@\count@
-                \advance\dimen@\eqnshift@
-                \advance\dimen@\@tempdimb
-                \ifdim\dimen@<2\tagwidth@
-                    \dimen@\displaywidth
-                    \advance\dimen@-\@tempdima
-                    \ifnum\xatlevel@=\tw@
-                        \advance\dimen@-\mintagsep\relax
-                    \fi
-                    \ifnum\@tempcnta>\z@
-                      \divide\dimen@\@tempcnta
-                    \else \dimen@\z@
-                    \fi
-                    \ifdim\dimen@<\minalignsep\relax
-                        \global\alignsep@\minalignsep\relax
-                        \dimen@\displaywidth
-                        \advance\dimen@-\@tempdima
-                        \advance\dimen@-\@tempcntb\alignsep@
-                        \global\divide\dimen@\tw@
-                    \else
-                        \ifdim\dimen@<\alignsep@
-                            \global\alignsep@\dimen@
-                        \fi
-                    \fi
-                    \ifnum\xatlevel@=\tw@
-                        \dimen@\mintagsep\relax
-                    \fi
-                    \advance\dimen@\tagwidth@
-                    \advance\dimen@-\@tempdimb
-                    \advance\dimen@-\count@\alignsep@
-                    \ifdim\dimen@>\eqnshift@
-                        \global\eqnshift@\dimen@
-                    \fi
-                \fi
-            \fi
-        \endgroup
-    }
-    \def\x@lcalc@width{%
-        \ifdim\@tempdima = \z@
-            \ifdim\@tempa > \z@
-                \@tempdima\p@
-                \ifodd\column@
-                    \advance\@tempdimb \maxcol@width\column@
-                    \advance\@tempdimb-\@tempa
-                \fi
-                \count@\column@
-                \advance\count@\m@ne
-                \divide\count@\tw@
-                \advance\@tempcnta-\count@
-                \advance\@tempcntb-\count@
-            \else
-                \advance\@tempdimb \maxcol@width\column@\relax
-            \fi
-        \fi
-    }
-\fi\fi
-\def\place@tag{%
-    \iftagsleft@
-        \kern-\tagshift@
-        \if1\shift@tag\row@\relax
-            \rlap{\vbox{%
-                \normalbaselines
-                \boxz@
-                \vbox to\lineht@{}%
-                \raise@tag
-            }}%
-        \else
-            \rlap{\boxz@}%
-        \fi
-        \kern\displaywidth@
-    \else
-        \kern-\tagshift@
-        \if1\shift@tag\row@\relax
-            \llap{\vtop{%
-                \raise@tag
-                \normalbaselines
-                \setbox\@ne\null
-                \dp\@ne\lineht@
-                \box\@ne
-                \boxz@
-            }}%
-        \else
-            \llap{\boxz@}%
-        \fi
-    \fi
-}
-\def\align@preamble{%
-   &\hfil
-    \strut@
-    \setboxz@h{\@lign$\m@th\displaystyle{##}$}%
-    \ifmeasuring@\savefieldlength@\fi
-    \set@field
-    \tabskip\z@skip
-   &\setboxz@h{\@lign$\m@th\displaystyle{{}##}$}%
-    \ifmeasuring@\savefieldlength@\fi
-    \set@field
-    \hfil
-    \tabskip\alignsep@
-}
-\def\set@field{%
-    \column@plus
-    \iftagsleft@
-        \ifdim\ht\z@>\lineht@
-            \global\lineht@\ht\z@
-        \fi
-    \else
-        \ifdim\dp\z@>\lineht@
-            \global\lineht@\dp\z@
-        \fi
-    \fi
-    \boxz@
-}
-\edef\split@err#1{%
-    \@nx\@amsmath@err{%
-        \string\begin{split} won't work here%
-    }{%
-        \@xp\@nx\csname
-  Did you forget a preceding \string\begin{equation}?^^J%
-  If not, perhaps the `aligned' environment is what
-  you want.\endcsname}%
-}
-\newenvironment{split}{%
-  \if@display
-    \ifinner
-      \@xp\@xp\@xp\split@aligned
-    \else
-      \ifst@rred \else \global\@eqnswtrue \fi
-    \fi
-  \else \let\endsplit\@empty \@xp\collect@body\@xp\split@err
-  \fi
-  \collect@body\gather@split
-}{%
-      \crcr
-    \egroup
-  \egroup
-  \iftagsleft@ \@xp\lendsplit@ \else \@xp\rendsplit@ \fi
-}
-\let\split@tag\relax % init
-\def\gather@split#1#2#3{%
-  \@xp\endgroup \reset@equation % math@cr will handle equation numbering
-  \iftag@
-     \toks@\@xp{\df@tag}%
-     \edef\split@tag{%
-       \gdef\@nx\df@tag{\the\toks@}%
-       \global\@nx\tag@true \@nx\nonumber
-     }%
-  \else \let\split@tag\@empty
-  \fi
-  \spread@equation
-  \vcenter\bgroup
-    \gather@{\split@tag  \begin{split}#1\end{split}}%
-    \def\endmathdisplay@a{%
-      \math@cr \black@ \totwidth@ \egroup
-      \egroup
-    }%
-}
-\def\insplit@{%
-  \global\setbox\z@\vbox\bgroup
-    \Let@ \chardef\dspbrk@context\@ne \restore@math@cr
-    \default@tag % disallow use of \tag here
-    \ialign\bgroup
-      \hfil
-      \strut@
-      $\m@th\displaystyle{##}$%
-     &$\m@th\displaystyle{{}##}$%
-      \hfill % Why not \hfil?---dmj, 1994/12/28
-      \crcr
-}
-\def\rendsplit@{%
-    \ifinalign@
-        \global\setbox9 \vtop{%
-            \unvcopy\z@
-            \global\setbox8 \lastbox
-            \unskip
-        }%
-        \setbox\@ne\hbox{%
-            \unhcopy8
-            \unskip
-            \global\setbox\tw@\lastbox
-            \unskip
-            \global\setbox\thr@@\lastbox
-        }%
-        \ifctagsplit@
-            \gdef\split@{%
-                \hbox to\wd\thr@@{}%
-               &\vcenter{\vbox{\moveleft\wd\thr@@\boxz@}}%
-            }%
-        \else
-            \global\setbox7 \hbox{\unhbox\tw@\unskip}%
-            \gdef\split@{%
-                \global\@tempcnta\column@
-               &\setboxz@h{}%
-                \savetaglength@
-                \global\advance\row@\@ne
-                \vbox{\moveleft\wd\thr@@\box9}%
-                \crcr
-                \noalign{\global\lineht@\z@}%
-                \add@amps\@tempcnta
-                \box\thr@@
-               &\box7
-            }%
-        \fi
-    \else
-        \ifctagsplit@
-            \gdef\split@{\vcenter{\boxz@}}%
-        \else
-            \gdef\split@{%
-                \boxz@
-            }%
-        \fi
-    \fi
-    \aftergroup\split@
-}
-\def\lendsplit@{%
-    \global\setbox9\vtop{\unvcopy\z@}%
-    \ifinalign@
-        \setbox\@ne\vbox{%
-            \unvcopy\z@
-            \global\setbox8\lastbox
-        }%
-        \setbox\@ne\hbox{%
-            \unhcopy8%
-            \unskip
-            \setbox\tw@\lastbox
-            \unskip
-            \global\setbox\thr@@\lastbox
-        }%
-        \ifctagsplit@
-            \gdef\split@{%
-                \hbox to\wd\thr@@{}%
-               &\vcenter{\vbox{\moveleft\wd\thr@@\box9}}%
-            }%
-        \else
-            \gdef\split@{%
-                \hbox to\wd\thr@@{}%
-               &\vbox{\moveleft\wd\thr@@\box9}%
-            }%
-        \fi
-    \else
-        \ifctagsplit@
-            \gdef\split@{\vcenter{\box9}}%
-        \else
-            \gdef\split@{\box9}%
-        \fi
-    \fi
-    \aftergroup\split@
-}
-\def\split@aligned#1#2{%
-   \iffalse{\fi\ifnum0=`}\fi
-   \collect@body\split@al@a}
-\def\split@al@a#1#2#3{%
-  \split@warning
-  \endgroup
-  \toks@{\begin{aligned}}%
-  \if@fleqn \split@al@tagcheck \fi
-  \the\toks@\relax#1\end{aligned}%
-  \ifnum0=`{\fi\iffalse}\fi
-}
-\def\split@al@tagcheck{%
-   \ifctagsplit@
-   \else
-     \iftagsleft@ \toks@\@xp{\the\toks@ [t]}%
-     \else \toks@\@xp{\the\toks@ [b]}%
-     \fi
-   \fi
-}
-\def\split@warning{%
-  \PackageWarning{amsmath}{%
-Cannot use `split' here;\MessageBreak trying to recover with `aligned'}%
-}
-\newskip\multlinegap
-\multlinegap10pt
-\newskip\multlinetaggap
-\multlinetaggap10pt
-\def\start@multline#1{%
-    \RIfM@
-        \nomath@env
-        \DN@{\@namedef{end\@currenvir}{}\@gobble}%
-    \else
-        $$%
-        #1%
-        \ifst@rred
-            \nonumber
-        \else
-            \global\@eqnswtrue
-        \fi
-        \let\next@\multline@
-    \fi
-    \collect@body\next@
-}
-\newenvironment{multline}{%
-  \start@multline\st@rredfalse
-}{%
-  \iftagsleft@ \@xp\lendmultline@ \else \@xp\rendmultline@ \fi
-  \ignorespacesafterend
-}
-\newenvironment{multline*}{\start@multline\st@rredtrue}{\endmultline}
-\def\multline@#1{%
-    \Let@
-    \@display@init{\global\advance\row@\@ne \global\dspbrk@lvl\m@ne}%
-    \chardef\dspbrk@context\z@
-    \restore@math@cr
-    \let\tag\tag@in@align
-    \global\tag@false \global\let\raise@tag\@empty
-    \mmeasure@{#1}%
-    \let\tag\gobble@tag \let\label\@gobble
-    \tabskip \if@fleqn \@mathmargin \else \z@skip \fi
-    \totwidth@\displaywidth
-    \if@fleqn
-        \advance\totwidth@-\@mathmargin
-    \fi
-    \halign\bgroup
-        \hbox to\totwidth@{%
-            \if@fleqn
-                \hskip \@centering \relax
-            \else
-                \hfil
-            \fi
-            \strut@
-            $\m@th\displaystyle{}##\endmultline@math
-            \hfil
-        }%
-        \crcr
-        \if@fleqn
-            \hskip-\@mathmargin
-            \def\multline@indent{\hskip\@mathmargin}% put it back
-        \else
-            \hfilneg
-            \def\multline@indent{\hskip\multlinegap}%
-        \fi
-        \iftagsleft@
-            \iftag@
-                \begingroup
-                    \ifshifttag@
-                        \rlap{\vbox{%
-                                \normalbaselines
-                                \hbox{%
-                                    \strut@
-                                    \make@display@tag
-                                }%
-                                \vbox to\lineht@{}%
-                                \raise@tag
-                        }}%
-                        \multline@indent
-                    \else
-                        \setbox\z@\hbox{\make@display@tag}%
-                        \dimen@\@mathmargin \advance\dimen@-\wd\z@
-                        \ifdim\dimen@<\multlinetaggap
-                          \dimen@\multlinetaggap
-                        \fi
-                        \box\z@ \hskip\dimen@\relax
-                    \fi
-                \endgroup
-            \else
-                \multline@indent
-            \fi
-        \else
-            \multline@indent
-        \fi
-    #1%
-}
-\def\endmultline@math{$}
-\def\lendmultline@{%
-        \hfilneg
-        \hskip\multlinegap
-        \math@cr
-    \egroup
-    $$%
-}
-\def\rendmultline@{%
-    \iftag@
-        $\let\endmultline@math\relax
-            \ifshifttag@
-                \hskip\multlinegap
-                \llap{\vtop{%
-                    \raise@tag
-                    \normalbaselines
-                    \setbox\@ne\null
-                    \dp\@ne\lineht@
-                    \box\@ne
-                    \hbox{\strut@\make@display@tag}%
-                }}%
-            \else
-                \hskip\multlinetaggap
-                \make@display@tag
-            \fi
-    \else
-        \hskip\multlinegap
-    \fi
-    \hfilneg
-        \math@cr
-    \egroup$$%
-}
-\def\mmeasure@#1{%
-    \begingroup
-        \measuring@true
-        \def\label##1{%
-          \begingroup\measuring@false\label@in@display{##1}\endgroup}%
-        \def\math@cr@@@{\cr}%
-        \let\shoveleft\@iden \let\shoveright\@iden
-        \savecounters@
-        \global\row@\z@
-        \setbox\@ne\vbox{%
-            \global\let\df@tag\@empty
-            \halign{%
-                \setboxz@h{\@lign$\m@th\displaystyle{}##$}%
-                \iftagsleft@
-                    \ifnum\row@=\@ne
-                        \global\totwidth@\wdz@
-                        \global\lineht@\ht\z@
-                    \fi
-                \else
-                    \global\totwidth@\wdz@
-                    \global\lineht@\dp\z@
-                \fi
-                \crcr
-                #1%
-                \crcr
-            }%
-        }%
-        \ifx\df@tag\@empty\else\global\tag@true\fi
-        \if@eqnsw\global\tag@true\fi
-        \iftag@
-            \setboxz@h{%
-                \if@eqnsw
-                    \stepcounter{equation}%
-                    \tagform@\theequation
-                \else
-                    \df@tag
-                \fi
-            }%
-            \global\tagwidth@\wdz@
-            \dimen@\totwidth@
-            \advance\dimen@\tagwidth@
-            \advance\dimen@\multlinetaggap
-            \iftagsleft@\else
-                \if@fleqn
-                    \advance\dimen@\@mathmargin
-                \fi
-            \fi
-            \ifdim\dimen@>\displaywidth
-                \global\shifttag@true
-            \else
-                \global\shifttag@false
-            \fi
-        \fi
-        \restorecounters@
-    \endgroup
-}
-\iftagsleft@
-    \def\shoveright#1{%
-        #1%
-        \hfilneg
-        \hskip\multlinegap
-    }
-\else
-    \def\shoveright#1{%
-        #1%
-        \hfilneg
-        \iftag@
-            \ifshifttag@
-                \hskip\multlinegap
-            \else
-                \hskip\tagwidth@
-                \hskip\multlinetaggap
-            \fi
-        \else
-            \hskip\multlinegap
-        \fi
-    }
-\fi
-
-\if@fleqn
-    \def\shoveleft#1{#1}%
-\else
-    \iftagsleft@
-        \def\shoveleft#1{%
-            \setboxz@h{$\m@th\displaystyle{}#1$}%
-            \setbox\@ne\hbox{$\m@th\displaystyle#1$}%
-            \hfilneg
-            \iftag@
-                \ifshifttag@
-                    \hskip\multlinegap
-                \else
-                    \hskip\tagwidth@
-                    \hskip\multlinetaggap
-                \fi
-            \else
-                \hskip\multlinegap
-            \fi
-            \hskip.5\wd\@ne
-            \hskip-.5\wdz@
-            #1%
-        }
-    \else
-        \def\shoveleft#1{%
-            \setboxz@h{$\m@th\displaystyle{}#1$}%
-            \setbox\@ne\hbox{$\m@th\displaystyle#1$}%
-            \hfilneg
-            \hskip\multlinegap
-            \hskip.5\wd\@ne
-            \hskip-.5\wdz@
-            #1%
-        }
-    \fi
-\fi
-\@saveprimitive\leqno\@@leqno
-\@saveprimitive\eqno\@@eqno
-\def\eqno{\@@eqno\let\eqno\relax\let\leqno\relax}
-\def\leqno{\@@leqno\let\leqno\relax\let\eqno\relax}
-\let\veqno=\@@eqno
-\iftagsleft@ \let\veqno=\@@leqno \fi
-\@ifundefined{SK@@label}{%
-  \let\SK@@label\relax \let\SK@equationtrue\relax
-}{}
-\let\reset@equation\@empty
-\let\alt@tag\@empty
-\def\tag@in@display#1#{\relax\tag@in@display@a{#1}}
-\def\tag@in@display@a#1#2{%
-  \iftag@
-    \invalid@tag{Multiple \string\tag}\relax
-  \else
-    \global\tag@true \nonumber \reset@equation \st@rredtrue
-    \if *\string#1%
-      \gdef\alt@tag{\def\SK@tagform@{#2\@gobble}%
-        \ifx\SK@@label\relax \let\tagform@\SK@tagform@ \fi
-      }%
-      \make@df@tag@@{#2}%
-    \else
-      \make@df@tag@@@{#2}%
-    \fi
-  \fi
-}
-\let\restore@hfuzz\@empty
-\def\mathdisplay#1{%
-  \ifmmode \@badmath
-  \else
-    $$\def\@currenvir{#1}%
-    \let\dspbrk@context\z@
-    \let\tag\tag@in@display \let\label\label@in@display \SK@equationtrue
-    \global\let\df@label\@empty \global\let\df@tag\@empty
-    \global\tag@false
-    \let\mathdisplay@push\mathdisplay@@push
-    \let\mathdisplay@pop\mathdisplay@@pop
-    \if@fleqn
-      \edef\restore@hfuzz{\hfuzz\the\hfuzz\relax}%
-      \hfuzz\maxdimen
-      \setbox\z@\hbox to\displaywidth\bgroup
-        \let\split@warning\relax \restore@hfuzz
-        \everymath\@emptytoks \m@th $\displaystyle
-    \fi
-  \fi
-}
-\def\endmathdisplay#1{%
-  \ifmmode \else \@badmath \fi
-  \endmathdisplay@a
-  $$%
-  \global\let\df@label\@empty \global\let\df@tag\@empty
-  \global\tag@false \global\let\alt@tag\@empty
-  \global\@eqnswfalse
-}
-\def\endmathdisplay@a{%
-  \if@eqnsw \gdef\df@tag{\tagform@\theequation}\fi
-  \if@fleqn \@xp\endmathdisplay@fleqn
-  \else \ifx\df@tag\@empty \else \veqno \alt@tag \df@tag \fi
-    \ifx\df@label\@empty \else \@xp\ltx@label\@xp{\df@label}\fi
-  \fi
-  \ifnum\dspbrk@lvl>\m@ne
-    \postdisplaypenalty -\@getpen\dspbrk@lvl
-    \global\dspbrk@lvl\m@ne
-  \fi
-}
-\let\too@wide\@ne
-\def\endmathdisplay@fleqn{%
-  $\hfil\hskip\@mathmargin\egroup
-  \ifnum\badness<\inf@bad \let\too@wide\@ne \else \let\too@wide\z@ \fi
-  \ifx\@empty\df@tag
-  \else
-    \setbox4\hbox{\df@tag
-      \ifx\df@label\@empty \else \@xp\ltx@label\@xp{\df@label}\fi
-    }%
-  \fi
-  \csname emdf@%
-    \ifx\df@tag\@empty U\else \iftagsleft@ L\else R\fi\fi
-  \endcsname
-}
-\def\emdf@U{%
-  \restore@hfuzz
-  \ifodd\too@wide % not too wide: just need to swap the glue around
-    \hbox to\displaywidth{\hskip\@mathmargin\unhbox\z@\unskip}%
-  \else % M+B > displaywidth
-    \emdf@Ua
-  \fi
-}
-\def\emdf@Ua{%
-  \hbox to\columnwidth{%
-    \ifdim\displayindent>\z@
-      \hskip\displayindent minus\displayindent
-    \fi
-    \hskip\@mathmargin \unhbox\z@ \unskip
-  }%
-  \displayindent\z@ \displaywidth\columnwidth
-}
-\def\emdf@R{%
-  \setbox\tw@\hbox to\displaywidth{%
-    \hskip\@mathmargin \unhcopy\z@\unskip\hfil\hskip\mintagsep\copy4
-  }%
-  \restore@hfuzz
-  \ifnum\badness<\inf@bad \box\tw@ \else \emdf@Ra \fi
-}
-\def\emdf@Ra{%
-  \skip@\displayindent minus\displayindent
-  \displayindent\z@ \displaywidth\columnwidth
-  \spread@equation \everycr{}\tabskip\z@skip
-  \halign{\hbox to\displaywidth{##}\cr
-    \relax
-    \ifdim\skip@>\z@ \hskip\skip@ \fi
-    \hskip\@mathmargin\unhbox\z@\unskip\hfil\cr
-    \noalign{\raise@tag}%
-    \hfil\box4 \cr}%
-}
-\def\emdf@L{%
-  \@tempdima\@mathmargin
-  \advance\@tempdima-\wd4 \advance\@tempdima-\mintagsep
-  \skip@\@tempdima minus\@tempdima
-  \setbox\tw@\hbox to\displaywidth{%
-    \copy4\hskip\mintagsep
-    \ifdim\skip@>\z@ \hskip\skip@\fi
-    \unhcopy\z@\unskip
-  }%
-  \restore@hfuzz
-  \ifnum\badness<\inf@bad \box\tw@ \else \emdf@La \fi
-}
-\def\emdf@La{%
-  \spread@equation \everycr{}\tabskip\z@skip
-  \halign{\hbox to\displaywidth{##}\cr
-    \box4 \hfil \cr
-    \noalign{\raise@tag}%
-    \hskip\@mathmargin\unhbox\z@\unskip\hfil\cr}%
-}
-\newtoks\mathdisplay@stack
-\let\mathdisplay@push\@empty
-\def\mathdisplay@@push{%
-  \begingroup
-  \toks@\@xp{\df@label}\@temptokena\@xp{\df@tag}%
-  \toks8\@xp{\alt@tag}%
-  \edef\@tempa{%
-    \global\if@eqnsw\@nx\@eqnswtrue\else\@nx\@eqnswfalse\fi
-    \global\iftag@\@nx\tag@false\else\@nx\tag@true\fi
-    \gdef\@nx\df@label{\the\toks@}\gdef\@nx\df@tag{\the\@temptokena}%
-    \gdef\@nx\alt@tag{\the\toks8}%
-    \global\mathdisplay@stack{\the\mathdisplay@stack}%
-  }%
-  \global\mathdisplay@stack\@xp{\@tempa}
-  \endgroup
-}
-\let\mathdisplay@pop\@empty
-\def\mathdisplay@@pop{\the\mathdisplay@stack}
-\renewenvironment{equation}{%
-  \incr@eqnum
-  \mathdisplay@push
-  \st@rredfalse \global\@eqnswtrue
-  \mathdisplay{equation}%
-}{%
-  \endmathdisplay{equation}%
-  \mathdisplay@pop
-  \ignorespacesafterend
-}
-\newenvironment{equation*}{%
-  \mathdisplay@push
-  \st@rredtrue \global\@eqnswfalse
-  \mathdisplay{equation*}%
-}{%
-  \endmathdisplay{equation*}%
-  \mathdisplay@pop
-  \ignorespacesafterend
-}
-\DeclareRobustCommand{\[}{\begin{equation*}}
-\DeclareRobustCommand{\]}{\end{equation*}}
-\endinput
-%%
-%% End of file `amsmath.sty'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/amsmidx.sty b/Master/texmf-dist/tex/latex/amslatex/amsmidx.sty
deleted file mode 100644
index f8bae104430..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/amsmidx.sty
+++ /dev/null
@@ -1,122 +0,0 @@
-%%
-%% This is file `amsmidx.sty',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsmidx.dtx 
-%% 
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsmidx.dtx",
-%%%   version   = "2.01",
-%%%   date      = "2004/08/03",
-%%%   time      = "14:45:42 EDT",
-%%%   checksum  = "63234 241 948 8307",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995, 2004 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Publications Technical Group,
-%%%                201 Charles Street,
-%%%                Providence, RI 02904,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, amslatex, multiple indexes",
-%%%   supported = "yes",
-%%%   abstract  = "This is part of the AMS-\LaTeX{} distribution.
-%%%                It contains code to support the creation and
-%%%                typesetting of multiple indexes with AMS-LaTeX{}
-%%%                document classes, superseding the single-index
-%%%                facilities built into those document classes.
-%%%                It also provides a facility to insert a paragraph
-%%%                of comments between the title and the index proper",
-%%%   docstring = "The checksum field above contains a CRC-16
-%%%                checksum as the first value, followed by the
-%%%                equivalent of the standard UNIX wc (word
-%%%                count) utility output of lines, words, and
-%%%                characters.  This is produced by Robert
-%%%                Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}[1995/06/01]
-\ProvidesPackage{amsmidx}[2004/08/03 v2.01 multiple indexes for AMS classes]
-\renewcommand{\makeindex}[1]{%
-  \begingroup
-    \makeatletter
-    \if@filesw \expandafter\newwrite\csname #1@idxfile\endcsname
-    \expandafter\immediate\openout \csname #1@idxfile\endcsname #1.idx\relax
-    \typeout{Writing index file #1.idx }\fi
-  \endgroup}
-\renewcommand{\index}[1]{%
-  \@bsphack
-  \begingroup
-    \def\protect##1{\string##1\space}\@sanitize\@wrindex{#1}}
-\renewcommand{\@wrindex}[2]{%
-  \let\thepage\relax
-  \xdef\@gtempa{%
-    \@ifundefined{#1@idxfile}{%
-      \PackageError{\@packagename}{%
-        The requested file, #1@idxfile.idx, does not exist;\MessageBreak
-        index term #2 will not be be written out.%
-      }%
-    }{%
-      \expandafter\write\csname #1@idxfile\endcsname
-        {\string\indexentry{#2}{\thepage}}%
-      }%
-    }%
-  \endgroup\@gtempa
-  \if@nobreak \ifvmode\nobreak\fi\fi
-  \@esphack
-  }
-\renewcommand{\printindex}[1]{\@input{#1.ind}}
-\newcommand{\Printindex}[2]{%
-  \begingroup
-    \cleardoublepage
-    \def\indexname{#2}%
-    \raggedright
-    \hyphenpenalty=10000
-    \renewcommand{\seename}{see~also}
-    \renewcommand{\subitem}{\par\hangindent 3em\hspace*{1em}}
-    \@input{#1.ind}%
-  \endgroup
-  }
-\newdimen\@indexcommentwidth
-\@indexcommentwidth=\textwidth
-\ifdim\@indexcommentwidth > 26pc
-  \advance\@indexcommentwidth-6pc
-\else
-  \advance\@indexcommentwidth-4pc
-\fi
-\newcommand{\indexcomment}[1]{%
-  \def\theindexcomment{%
-    \vskip\baselineskip
-    \parbox[t]{\@indexcommentwidth}{\normalsize\mdseries#1}%
-    }%
-  }
-\let\theindexcomment\@empty
-\renewcommand{\indexchap}[1]{%
-  \global\topskip 7.5pc\relax
-  \twocolumn[\fontsize{\@xivpt}{18}%
-    \vskip\topskip\vskip-\baselineskip\hbox{}% adjust top space
-    \bfseries\centering #1\par
-    \ifx\theindexcomment\@empty
-    \else \theindexcomment
-      \global\let\theindexcomment\@empty
-    \fi
-    ]%
-  \global\topskip 34\p@
-}
-\endinput
-%%
-%% End of file `amsmidx.sty'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/amsopn.sty b/Master/texmf-dist/tex/latex/amslatex/amsopn.sty
deleted file mode 100644
index 76580233765..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/amsopn.sty
+++ /dev/null
@@ -1,132 +0,0 @@
-%%
-%% This is file `amsopn.sty',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsopn.dtx 
-%% 
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsopn.dtx",
-%%%   version   = "2.01",
-%%%   date      = "1999/12/14",
-%%%   time      = "17:30:59 EST",
-%%%   checksum  = "46904 254 1037 9431",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995, 1999 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Electronic Products and Services,
-%%%                P. O. Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "operator name, amsopn, DeclareMathOperator",
-%%%   supported = "yes",
-%%%   abstract  = "This is a \LaTeX{} package that provides a
-%%%                DeclareMathOperator command for defining named
-%%%                operators like sin and lim.",
-%%%   docstring = "The checksum field above contains a CRC-16 checksum
-%%%                as the first value, followed by the equivalent of
-%%%                the standard UNIX wc (word count) utility output of
-%%%                lines, words, and characters.  This is produced by
-%%%                Robert Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1994/12/01]% LaTeX date must December 1994 or later
-\ProvidesPackage{amsopn}[1999/12/14 v2.01 operator names]
-\def\nolimits@{\@ifnextchar\limits{\nolimits\@gobble}{\nolimits}}
-\begingroup \catcode`\"=12
-\gdef\newmcodes@{\mathcode`\'39\mathcode`\*42\mathcode`\."613A%
-  \ifnum\mathcode`\-=45 \else
-    \mathchardef\std@minus\mathcode`\-\relax
-  \fi
-  \mathcode`\-45\mathcode`\/47\mathcode`\:"603A\relax}
-\endgroup
-\DeclareRobustCommand{\operatorname}{%
-  \@ifstar{\qopname\newmcodes@ m}%
-          {\qopname\newmcodes@ o}}%
-\DeclareRobustCommand{\qopname}[3]{%
-  \mathop{#1\kern\z@\operator@font#3}%
-  \csname n#2limits@\endcsname}
-\newcommand{\DeclareMathOperator}{%
-  \@ifstar{\@declmathop m}{\@declmathop o}}
-\long\def\@declmathop#1#2#3{%
-  \@ifdefinable{#2}{%
-    \DeclareRobustCommand{#2}{\qopname\newmcodes@#1{#3}}}}
-\@onlypreamble\DeclareMathOperator
-\@onlypreamble\@declmathop
-\def\arccos{\qopname\relax o{arccos}}
-\def\arcsin{\qopname\relax o{arcsin}}
-\def\arctan{\qopname\relax o{arctan}}
-\def\arg{\qopname\relax o{arg}}
-\def\cos{\qopname\relax o{cos}}
-\def\cosh{\qopname\relax o{cosh}}
-\def\cot{\qopname\relax o{cot}}
-\def\coth{\qopname\relax o{coth}}
-\def\csc{\qopname\relax o{csc}}
-\def\deg{\qopname\relax o{deg}}
-\def\det{\qopname\relax m{det}}
-\def\dim{\qopname\relax o{dim}}
-\def\exp{\qopname\relax o{exp}}
-\def\gcd{\qopname\relax m{gcd}}
-\def\hom{\qopname\relax o{hom}}
-\def\inf{\qopname\relax m{inf}}
-\def\injlim{\qopname\relax m{inj\,lim}}
-\def\ker{\qopname\relax o{ker}}
-\def\lg{\qopname\relax o{lg}}
-\def\lim{\qopname\relax m{lim}}
-\def\liminf{\qopname\relax m{lim\,inf}}
-\def\limsup{\qopname\relax m{lim\,sup}}
-\def\ln{\qopname\relax o{ln}}
-\def\log{\qopname\relax o{log}}
-\def\max{\qopname\relax m{max}}
-\def\min{\qopname\relax m{min}}
-\def\Pr{\qopname\relax m{Pr}}
-\def\projlim{\qopname\relax m{proj\,lim}}
-\def\sec{\qopname\relax o{sec}}
-\def\sin{\qopname\relax o{sin}}
-\def\sinh{\qopname\relax o{sinh}}
-\def\sup{\qopname\relax m{sup}}
-\def\tan{\qopname\relax o{tan}}
-\def\tanh{\qopname\relax o{tanh}}
-\def\operator@font{\mathgroup\symoperators}
-\def\operatorfont{\operator@font}
-\def\operatornamewithlimits{\operatorname*}
-\def\varlim@#1#2{%
-  \vtop{\m@th\ialign{##\cr
-    \hfil$#1\operator@font lim$\hfil\cr
-    \noalign{\nointerlineskip\kern1.5\ex@}#2\cr
-    \noalign{\nointerlineskip\kern-\ex@}\cr}}%
-}
-\def\varinjlim{%
-  \mathop{\mathpalette\varlim@{\rightarrowfill@\textstyle}}\nmlimits@
-}
-\def\varprojlim{%
-  \mathop{\mathpalette\varlim@{\leftarrowfill@\textstyle}}\nmlimits@
-}
-\def\varliminf{\mathop{\mathpalette\varliminf@{}}\nmlimits@}
-\def\varliminf@#1{\@@underline{\vrule\@depth.2\ex@\@width\z@
-   \hbox{$#1\m@th\operator@font lim$}}}
-\def\varlimsup{\mathop{\mathpalette\varlimsup@{}}\nmlimits@}
-\def\varlimsup@#1{\@@overline{\hbox{$#1\m@th\operator@font lim$}}}
-\let\nmlimits@\displaylimits
-\DeclareOption{namelimits}{\let\nmlimits@\displaylimits}
-\DeclareOption{nonamelimits}{\let\nmlimits@\nolimits}
-\ProcessOptions\relax
-\RequirePackage{amsgen}\relax
-\endinput
-%%
-%% End of file `amsopn.sty'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/amsproc.cls b/Master/texmf-dist/tex/latex/amslatex/amsproc.cls
deleted file mode 100644
index a85c122203c..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/amsproc.cls
+++ /dev/null
@@ -1,1858 +0,0 @@
-%%
-%% This is file `amsproc.cls',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsclass.dtx  (with options: `amsproc,classes')
-%% 
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsclass.dtx",
-%%%   version   = "2.20",
-%%%   date      = "2004/08/06",
-%%%   time      = "13:03:53 EDT",
-%%%   checksum  = "53558 5204 20497 185872",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995, 1999, 2004
-%%%                American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Publications Technical Group,
-%%%                201 Charles Street,
-%%%                Providence, RI 02904,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, AMS, documentclass, theorem",
-%%%   supported = "yes",
-%%%   abstract  = "This is the source for the amsthm package and three
-%%%                AMS document classes: amsart, amsproc, and amsbook.
-%%%                They are designed for use with LaTeX.",
-%%%   docstring = "The checksum field above contains a CRC-16 checksum
-%%%                as the first value, followed by the equivalent of
-%%%                the standard UNIX wc (word count) utility output of
-%%%                lines, words, and characters.  This is produced by
-%%%                Robert Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1995/06/01]% LaTeX date must be June 1995 or later
-\ProvidesClass{amsproc}[2004/08/06 v2.20]
-\global\expandafter\let\csname ver@amsthm.sty\expandafter\endcsname
-  \csname ver@\@currname.\@currext\endcsname
-\let\@xp=\expandafter
-\let\@nx=\noexpand
-\def\@oparg#1[#2]{\@ifnextchar[{#1}{#1[#2]}}
-\long\def\@ifempty#1{\@xifempty#1@@..\@nil}
-\long\def\@xifempty#1#2@#3#4#5\@nil{%
-  \ifx#3#4\@xp\@firstoftwo\else\@xp\@secondoftwo\fi}
-\long\def\@ifnotempty#1{\@ifempty{#1}{}}
-\def\setboxz@h{\setbox\z@\hbox}
-\def\@addpunct#1{%
-  \relax\ifhmode
-    \ifnum\spacefactor>\@m \else#1\fi
-  \fi}
-\def\nopunct{\spacefactor 1007 }
-\def\frenchspacing{\sfcode`\.1006\sfcode`\?1005\sfcode`\!1004%
-  \sfcode`\:1003\sfcode`\;1002\sfcode`\,1001 }
-\def\@tempa#1#2\@nil{\edef\@classname{#1}}
-\expandafter\@tempa\@currnamestack{}{}{}\@nil
-\ifx\@classname\@empty \edef\@classname{\@currname}\fi
-\def\@True{00}
-\def\@False{01}
-\newcommand\newswitch[2][False]{%
-  \expandafter\@ifdefinable\csname ?@#2\endcsname{%
-    \global\expandafter\let\csname ?@#2\expandafter\endcsname
-      \csname @#1\endcsname
-  }%
-}
-\newcommand{\setFalse}[1]{%
-  \expandafter\let\csname ?@#1\endcsname\@False
-}
-\newcommand{\setTrue}[1]{%
-  \expandafter\let\csname ?@#1\endcsname\@True
-}
-\newswitch{}
-\DeclareRobustCommand{\except}[1]{%
-  \if\csname ?@#1\endcsname \expandafter\@gobble
-  \else \expandafter\@firstofone
-  \fi
-}
-\DeclareRobustCommand{\for}[1]{%
-  \if\csname ?@#1\endcsname \expandafter\@firstofone
-  \else \expandafter\@gobble
-  \fi
-}
-\DeclareRobustCommand{\forany}[1]{%
-  \csname for@any@01\endcsname#1,?,\@nil
-}
-\@namedef{for@any@\@False}#1,{%
-  \csname for@any@%
-    \csname ?@\zap@space#1 \@empty\endcsname
-  \endcsname
-}
-\@namedef{?@?}{x}
-\@namedef{for@any@\@True}#1\@nil#2{#2}
-\def\for@any@x{\@car\@gobble}
-\DeclareOption{a4paper}{\paperheight 297mm\paperwidth 210mm
-  \textheight 54.5pc }
-\DeclareOption{letterpaper}{\paperheight 11in\paperwidth 8.5in }
-\DeclareOption{landscape}{\@tempdima\paperheight
-  \paperheight\paperwidth \paperwidth\@tempdima}
-\DeclareOption{portrait}{}
-\DeclareOption{oneside}{\@twosidefalse \@mparswitchfalse}
-\DeclareOption{twoside}{\@twosidetrue  \@mparswitchtrue}
-\DeclareOption{draft}{\overfullrule5\p@
-  \ClassWarningNoLine{\@classname}{%
-    When the draft option is used, the
-      \protect\includegraphics\MessageBreak
-    command will print blank placeholder boxes\MessageBreak
-    for the graphics}%
-}
-\DeclareOption{final}{\overfullrule\z@ }
-\def\dateposted#1{\def\@dateposted{#1}}%
-\let\@dateposted\@empty
-\def\@logofont{\fontsize{6}{7\p@}\selectfont}
-\long\def\set@logo#1{%
-  \vbox to\headheight{%
-    \@parboxrestore \@logofont
-    \noindent#1\par\vss
-  }%
-}
-\def\procart@logo{%
-  \set@logo{\publname
-    \ifx\@empty\volinfo \else\newline\volinfo\fi}%
-}
-\newif\if@titlepage
-\DeclareOption{titlepage}{\@titlepagetrue}
-\DeclareOption{notitlepage}{\@titlepagefalse}
-\DeclareOption{onecolumn}{\@twocolumnfalse}
-\DeclareOption{twocolumn}{\@twocolumntrue}
-\DeclareOption{nomath}{}
-\DeclareOption{noamsfonts}{}
-\DeclareOption{psamsfonts}{%
-  \PassOptionsToPackage{psamsfonts}{amsfonts}%
-  \PassOptionsToPackage{cmex10}{amsmath}}
-\newif\iftagsleft@
-\DeclareOption{leqno}{%
-  \tagsleft@true \PassOptionsToPackage{leqno}{amsmath}}
-\DeclareOption{reqno}{%
-  \tagsleft@false \PassOptionsToPackage{reqno}{amsmath}}
-\newif\ifctagsplit@
-\DeclareOption{centertags}{%
-  \ctagsplit@true \PassOptionsToPackage{centertags}{amsmath}}
-\DeclareOption{tbtags}{%
-  \ctagsplit@false \PassOptionsToPackage{tbtags}{amsmath}}
-\DeclareOption{fleqn}{}%
-\newcommand{\@mainsize}{10}
-\newcommand{\@ptsize}{0}
-\newcommand{\larger}[1][1]{%
-  \count@\@currsizeindex \advance\count@#1\relax
-  \ifnum\count@<\z@ \count@\z@ \else\ifnum\count@>12 \count@12 \fi\fi
-  \ifcase\count@
-    \Tiny\or\Tiny\or\tiny\or\SMALL\or\Small\or\small
-    \or\normalsize
-    \or\large\or\Large\or\LARGE\or\huge\or\Huge\else\Huge
-  \fi
-}
-\newcommand{\smaller}[1][1]{\larger[-#1]}
-\def\@adjustvertspacing{%
-  \bigskipamount.7\baselineskip plus.7\baselineskip
-  \medskipamount\bigskipamount \divide\medskipamount\tw@
-  \smallskipamount\medskipamount \divide\smallskipamount\tw@
-  \abovedisplayskip\medskipamount
-  \belowdisplayskip \abovedisplayskip
-  \abovedisplayshortskip\abovedisplayskip
-  \advance\abovedisplayshortskip-1\abovedisplayskip
-  \belowdisplayshortskip\abovedisplayshortskip
-  \advance\belowdisplayshortskip 1\smallskipamount
-  \jot\baselineskip \divide\jot 4 \relax
-}
-\renewcommand\normalsize{\@xsetfontsize\normalsize 6%
-  \@adjustvertspacing \let\@listi\@listI}
-\DeclareRobustCommand{\Tiny}{\@xsetfontsize\Tiny 1}
-\DeclareRobustCommand{\tiny}{\@xsetfontsize\tiny 2}
-\DeclareRobustCommand{\SMALL}{\@xsetfontsize\SMALL 3}
-\DeclareRobustCommand{\Small}{\@xsetfontsize\Small 4%
-  \@adjustvertspacing
-  \def\@listi{\topsep\smallskipamount \parsep\z@skip \itemsep\z@skip
-    \leftmargin=\leftmargini
-    \labelwidth=\leftmargini \advance\labelwidth-\labelsep
-  }%
-}
-\DeclareRobustCommand{\small}{\@xsetfontsize\small 5\@adjustvertspacing}
-\def\footnotesize{\Small}
-\def\scriptsize{\SMALL}
-\DeclareRobustCommand{\large}{\@xsetfontsize\large 7\@adjustvertspacing}
-\DeclareRobustCommand{\Large}{\@xsetfontsize\Large 8\@adjustvertspacing}
-\DeclareRobustCommand{\LARGE}{\@xsetfontsize\LARGE 9}
-\DeclareRobustCommand{\huge}{\@xsetfontsize\huge{10}}
-\DeclareRobustCommand{\Huge}{\@xsetfontsize\Huge{11}}
-\def\@xsetfontsize#1#2{%
-  \chardef\@currsizeindex#2\relax
-  \edef\@tempa{\@nx\@setfontsize\@nx#1%
-    \@xp\ifcase\@xp\@currsizeindex\@typesizes
-      \else{99}{99}\fi}%
-  \@tempa
-}
-\chardef\@currsizeindex=6
-\widowpenalty=10000
-\clubpenalty=10000
-\brokenpenalty=10000
-\newdimen\linespacing
-\lineskip=1pt \lineskiplimit=1pt
-\normallineskip=1pt \normallineskiplimit=1pt
-\let\baselinestretch=\@empty
-\headheight=8pt \headsep=14pt
-\footskip=12pt
-\textheight=50.5pc \topskip=10pt
-\textwidth=30pc
-\columnsep=10pt \columnseprule=0pt
-\marginparwidth=90pt
-\marginparsep=11pt
-\marginparpush=5pt
-\AtBeginDocument{\settoheight{\footnotesep}{\footnotesize M$^1$}}
-\skip\footins=7pt plus11pt
-\skip\@mpfootins=\skip\footins
-\fboxsep=3pt \fboxrule=.4pt
-\arrayrulewidth=.4pt    \doublerulesep=2pt
-\labelsep=5pt           \arraycolsep=\labelsep
-\tabcolsep=\labelsep    \tabbingsep=\labelsep
-\floatsep=15pt plus 12pt    \dblfloatsep=15pt plus 12pt
-\textfloatsep=\floatsep  \dbltextfloatsep=15pt plus 12pt
-\intextsep=\floatsep
-\@fptop=0pt plus1fil     \@dblfptop=0pt plus1fil
-\@fpbot=0pt plus1fil     \@dblfpbot=0pt plus1fil
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-\parskip=0pt \relax
-\newdimen\normalparindent
-\normalparindent=18pt
-\parindent=\normalparindent
-\partopsep=0pt \relax \parsep=0pt \relax \itemsep=0pt \relax
-\@lowpenalty=51         \@medpenalty=151        \@highpenalty=301
-\@beginparpenalty=-\@lowpenalty
-\@endparpenalty=-\@lowpenalty
-\@itempenalty=-\@lowpenalty
-\DeclareOption{10pt}{\def\@mainsize{10}\def\@ptsize{0}%
-  \def\@typesizes{%
-    \or{5}{6}\or{6}{7}\or{7}{8}\or{8}{10}\or{9}{11}%
-    \or{10}{12}% normalsize
-    \or{\@xipt}{13}\or{\@xiipt}{14}\or{\@xivpt}{17}%
-    \or{\@xviipt}{20}\or{\@xxpt}{24}}%
-  \normalsize \linespacing=\baselineskip
-}
-\DeclareOption{11pt}{\def\@mainsize{11}\def\@ptsize{1}%
-  \def\@typesizes{%
-    \or{6}{7}\or{7}{8}\or{8}{10}\or{9}{11}\or{10}{12}%
-    \or{\@xipt}{13}% normalsize
-    \or{\@xiipt}{14}\or{\@xivpt}{17}\or{\@xviipt}{20}%
-    \or{\@xxpt}{24}\or{\@xxvpt}{30}}%
-  \normalsize \linespacing=\baselineskip
-}
-\DeclareOption{12pt}{\def\@mainsize{12}\def\@ptsize{2}%
-  \def\@typesizes{%
-    \or{7}{8}\or{8}{10}\or{9}{11}\or{10}{12}\or{\@xipt}{13}%
-    \or{\@xiipt}{14}% normalsize
-    \or{\@xivpt}{17}\or{\@xviipt}{20}\or{\@xxpt}{24}%
-    \or{\@xxvpt}{30}\or{\@xxvpt}{30}}%
-  \normalsize \linespacing=\baselineskip
-}
-\DeclareOption{8pt}{\def\@mainsize{8}\def\@ptsize{8}%
-  \def\@typesizes{%
-    \or{5}{6}\or{5}{6}\or{5}{6}\or{6}{7}\or{7}{8}%
-    \or{8}{10}% normalsize
-    \or{9}{11}\or{10}{12}\or{\@xipt}{13}%
-    \or{\@xiipt}{14}\or{\@xivpt}{17}}%
-  \normalsize \linespacing=\baselineskip
-}
-\DeclareOption{9pt}{\def\@mainsize{9}\def\@ptsize{9}%
-  \def\@typesizes{%
-    \or{5}{6}\or{5}{6}\or{6}{7}\or{7}{8}\or{8}{10}%
-    \or{9}{11}% normalsize
-    \or{10}{12}\or{\@xipt}{13}\or{\@xiipt}{14}%
-    \or{\@xivpt}{17}\or{\@xviipt}{20}}%
-  \normalsize \linespacing=\baselineskip
-}
-\def\ps@empty{\let\@mkboth\@gobbletwo
-  \let\@oddhead\@empty \let\@evenhead\@empty
-  \let\@oddfoot\@empty \let\@evenfoot\@empty
-  \global\topskip\normaltopskip}
-\def\ps@plain{\ps@empty
-  \def\@oddfoot{\normalfont\scriptsize \hfil\thepage\hfil}%
-  \let\@evenfoot\@oddfoot}
-\newswitch{runhead}
-\def\ps@headings{\ps@empty
-  \def\@evenhead{%
-    \setTrue{runhead}%
-    \normalfont\scriptsize
-    \rlap{\thepage}\hfil
-    \def\thanks{\protect\thanks@warning}%
-    \leftmark{}{}\hfil}%
-  \def\@oddhead{%
-    \setTrue{runhead}%
-    \normalfont\scriptsize \hfil
-    \def\thanks{\protect\thanks@warning}%
-    \rightmark{}{}\hfil \llap{\thepage}}%
-  \let\@mkboth\markboth
-}
-\let\sectionname\@empty
-\let\subsectionname\@empty
-\let\subsubsectionname\@empty
-\let\paragraphname\@empty
-\let\subparagraphname\@empty
-\def\leftmark{\expandafter\@firstoftwo\topmark{}{}}
-\def\rightmark{\expandafter\@secondoftwo\botmark{}{}}
-\def\ps@firstpage{\ps@plain
-  \def\@oddfoot{\normalfont\scriptsize \hfil\thepage\hfil
-     \global\topskip\normaltopskip}%
-  \let\@evenfoot\@oddfoot
-  \def\@oddhead{\@serieslogo\hss}%
-  \let\@evenhead\@oddhead % in case an article starts on a left-hand page
-}
-\long\def\@nilgobble#1\@nil{}
-\def\markboth#1#2{%
-  \begingroup
-    \@temptokena{{#1}{#2}}\xdef\@themark{\the\@temptokena}%
-    \mark{\the\@temptokena}%
-  \endgroup
-  \if@nobreak\ifvmode\nobreak\fi\fi}
-\def\ps@myheadings{\ps@headings \let\@mkboth\@gobbletwo}
-\newskip\normaltopskip
-\normaltopskip=10pt \relax
-\let\sectionmark\@gobble
-\let\subsectionmark\@gobble
-\let\subsubsectionmark\@gobble
-\let\paragraphmark\@gobble
-
-\DeclareOption{makeidx}{}
-\ExecuteOptions{leqno,centertags,letterpaper,portrait,%
-  10pt,twoside,onecolumn,final}
-\ProcessOptions\relax
-\if@compatibility
-  \def\@tempa{\RequirePackage{amstex}\relax}%
-\else
-  \@ifclasswith{\@classname}{nomath}{%
-    \let\@tempa\relax
-  }{%
-    \def\@tempa{\RequirePackage{amsmath}\relax}%
-  }%
-\fi
-\@tempa % load amstex.sty or amsmath.sty
-\@ifundefined{numberwithin}{%
-  \newcommand{\numberwithin}[3][\arabic]{%
-    \@ifundefined{c@#2}{\@nocounterr{#2}}{%
-      \@ifundefined{c@#3}{\@nocnterr{#3}}{%
-        \@addtoreset{#2}{#3}%
-        \@xp\xdef\csname the#2\endcsname{%
-          \@xp\@nx\csname the#3\endcsname .\@nx#1{#2}}}}%
-  }
-  \csname newtoks\endcsname\@emptytoks
-}{}
-\if@compatibility
-\else
-  \@ifclasswith{\@classname}{noamsfonts}{%
-    % amsfonts package is not wanted
-  }{%
-    % amsfonts package IS wanted; test whether a recent enough version
-    % seems to be installed
-    \begingroup \fontencoding{U}\fontfamily{msa}\try@load@fontshape\endgroup
-    \global\@xp\let\csname U+msa\endcsname\relax % reset
-    \@ifundefined{U/msa/m/n}{%
-      \ClassError{\@classname}{%
-  Package `amsfonts' not installed, or version too old?\MessageBreak
-  Unable to get font info for the `msam' fonts in the expected form%
-      }{%
-  The amsfonts package will not be loaded, to avoid probable\MessageBreak
-  incompatibility problems. You can (a) use the `noamsfonts'
-      documentclass\MessageBreak
-  option next time, or (b) check that the amsfonts package is
-      installed\MessageBreak
-  correctly, and is not too old to be compatible.%
-      }%
-    }{%
-      \RequirePackage{amsfonts}[1995/01/01]\relax
-    }%
-  }
-\fi % end yesamsfonts branch
-\let\cleardouble@page\cleardoublepage
-\AtBeginDocument{%
-  \ifx\cleardouble@page\cleardoublepage
-    \def\cleardoublepage{\clearpage{\pagestyle{empty}\cleardouble@page}}
-  \fi
-}
-\newcommand{\uppercasenonmath}[1]{\toks@\@emptytoks
-  \@xp\@skipmath\@xp\@empty#1$$%
-  \edef#1{{\@nx\protect\@nx\@upprep\the\toks@}}%
-}
-\newcommand{\@upprep}{%
-  \spaceskip1.3\fontdimen2\font plus1.3\fontdimen3\font
-  \upchars@}
-\newcommand{\upchars@}{%
-  \def\ss{SS}\def\i{I}\def\j{J}\def\ae{\AE}\def\oe{\OE}%
-  \def\o{\O}\def\aa{\AA}\def\l{\L}\def\Mc{M{\scshape c}}}
-\providecommand{\Mc}{Mc}
-\newcommand{\@skipmath}{}
-\long\def\@skipmath#1$#2${%
-  \@xskipmath#1\(\)%
-  \@ifnotempty{#2}{\toks@\@xp{\the\toks@$#2$}\@skipmath\@empty}}%
-\newcommand{\@xskipmath}{}
-\long\def\@xskipmath#1\(#2\){%
-  \uppercase{\toks@\@xp\@xp\@xp{\@xp\the\@xp\toks@#1}}%
-  \@ifnotempty{#2}{\toks@\@xp{\the\toks@\(#2\)}\@xskipmath\@empty}}%
-\def\altucnm#1{%
-  \MakeTextUppercase{\toks@{#1}}%
-  \edef#1{\the\toks@}%
-}
-\AtBeginDocument{%
-  \@ifundefined{MakeTextUppercase}{}{\let\uppercasenonmath\altucnm}%
-}
-\@ifundefined{MakeUppercase}{\let\MakeUppercase\uppercase}{}%
-\newcommand{\today}{%
-  \relax\ifcase\month\or
-  January\or February\or March\or April\or May\or June\or
-  July\or August\or September\or October\or November\or December\fi
-  \space\number\day, \number\year}
-\DeclareOldFontCommand{\rm}{\normalfont\rmfamily}{\mathrm}
-\DeclareOldFontCommand{\sf}{\normalfont\sffamily}{\mathsf}
-\DeclareOldFontCommand{\tt}{\normalfont\ttfamily}{\mathtt}
-\DeclareOldFontCommand{\bf}{\normalfont\bfseries}{\mathbf}
-\DeclareOldFontCommand{\it}{\normalfont\itshape}{\mathit}
-\DeclareOldFontCommand{\sl}{\normalfont\slshape}{\@nomath\sl}
-\DeclareOldFontCommand{\sc}{\normalfont\scshape}{\@nomath\sc}
-%%\if@compatibility
-%%\else
-%%  \def\@obsolete@fontswitch#1#2#3{%
-%%    \@latex@warning@no@line{%
-%%      Command {\string#1...}\on@line\space is obsolete;\MessageBreak
-%%      the LaTeX2e equivalent is \string#3{...}}%
-%%    \gdef#1{\@fontswitch\relax#3}%
-%%  }
-%%  \DeclareRobustCommand*\cal{%
-%%    \@xp\@obsolete@fontswitch\csname cal \endcsname\relax\mathcal}
-%%  \DeclareRobustCommand*\mit{%
-%%    \@xp\@obsolete@fontswitch\csname mit \endcsname\relax\mathnormal}
-%%\fi
-\renewcommand*{\title}[2][]{\gdef\shorttitle{#1}\gdef\@title{#2}}
-\edef\title{\@nx\@dblarg
-  \@xp\@nx\csname\string\title\endcsname}
-\renewcommand{\author}[2][]{%
-  \ifx\@empty\authors
-    \gdef\authors{#2}%
-  \else
-    \g@addto@macro\authors{\and#2}%
-    \g@addto@macro\addresses{\author{}}%
-  \fi
-  \@ifnotempty{#1}{%
-    \ifx\@empty\shortauthors
-      \gdef\shortauthors{#1}%
-    \else
-      \g@addto@macro\shortauthors{\and#1}%
-    \fi
-  }%
-}
-\edef\author{\@nx\@dblarg
-  \@xp\@nx\csname\string\author\endcsname}
-\let\shortauthors\@empty   \let\authors\@empty
-\newif\ifresetcontrib  \resetcontribfalse
-\newcommand\contrib[2][]{%
-  \def\@tempa{#1}%
-  \ifx\@empty\@tempa
-  \else
-    \ifresetcontrib \@xcontribs
-    \else \global\resetcontribtrue
-    \fi
-  \fi
-  \ifx\@empty\contribs
-    \gdef\contribs{#1 #2}%
-  \else
-    \g@addto@macro\contribs{\and#1 #2}%
-  \fi
-  \@wraptoccontribs{#1}{#2}%
-}
-\def\wraptoccontribs#1#2{}
-\def\@xcontribs{%
-  \author@andify\contribs
-  \ifx\@empty\xcontribs
-    \xdef\xcontribs{\contribs}%
-  \else
-    \xdef\xcontribs{\xcontribs, \contribs}%
-  \fi
-  \let\contribs\@empty
-}
-\let\contribs\@empty  \let\xcontribs\@empty  \let\toccontribs\@empty
-\let\addresses\@empty      \let\thankses\@empty
-\newcommand{\address}[2][]{\g@addto@macro\addresses{\address{#1}{#2}}}
-\newcommand{\curraddr}[2][]{\g@addto@macro\addresses{\curraddr{#1}{#2}}}
-\newcommand{\email}[2][]{\g@addto@macro\addresses{\email{#1}{#2}}}
-\newcommand{\urladdr}[2][]{\g@addto@macro\addresses{\urladdr{#1}{#2}}}
-\long\def\thanks@warning#1{%
-  \ClassError{\@classname}{%
-    \protect\thanks\space should be given separately, not inside author name.%
-  }\@ehb
-}
-\renewcommand{\thanks}[1]{%
-  \@ifnotempty{#1}{\g@addto@macro\thankses{\thanks{#1}}}%
-}
-\def\enddoc@text{\ifx\@empty\@translators \else\@settranslators\fi
-  \ifx\@empty\addresses \else\@setaddresses\fi}
-\AtEndDocument{\enddoc@text}
-\def\curraddrname{{\itshape Current address}}
-\def\emailaddrname{{\itshape E-mail address}}
-\def\urladdrname{{\itshape URL}}
-\def\@setaddresses{\par
-  \nobreak \begingroup
-\footnotesize
-  \def\author##1{\nobreak\addvspace\bigskipamount}%
-  \def\\{\unskip, \ignorespaces}%
-  \interlinepenalty\@M
-  \def\address##1##2{\begingroup
-    \par\addvspace\bigskipamount\indent
-    \@ifnotempty{##1}{(\ignorespaces##1\unskip) }%
-    {\scshape\ignorespaces##2}\par\endgroup}%
-  \def\curraddr##1##2{\begingroup
-    \@ifnotempty{##2}{\nobreak\indent\curraddrname
-      \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space
-      ##2\par}\endgroup}%
-  \def\email##1##2{\begingroup
-    \@ifnotempty{##2}{\nobreak\indent\emailaddrname
-      \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space
-      \ttfamily##2\par}\endgroup}%
-  \def\urladdr##1##2{\begingroup
-    \def~{\char`\~}%
-    \@ifnotempty{##2}{\nobreak\indent\urladdrname
-      \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space
-      \ttfamily##2\par}\endgroup}%
-  \addresses
-  \endgroup
-}
-\let\@date\@empty
-\def\dedicatory#1{\def\@dedicatory{#1}}
-\let\@dedicatory=\@empty
-\def\keywords#1{\def\@keywords{#1}}
-\let\@keywords=\@empty
-\newcommand*\subjclass[2][1991]{%
-  \def\@subjclass{#2}%
-  \@ifundefined{subjclassname@#1}{%
-    \ClassWarning{\@classname}{Unknown edition (#1) of Mathematics
-      Subject Classification; using '1991'.}%
-  }{%
-    \@xp\let\@xp\subjclassname\csname subjclassname@#1\endcsname
-  }%
-}
-\let\@subjclass=\@empty
-\def\translname{Translated by}
-\def\translator#1{%
-  \ifx\@empty\@translators \def\@translators{#1}%
-  \else\g@addto@macro\@translators{\and#1}\fi}
-\let\@translators=\@empty
-\def\@settranslators{\par\begingroup
-  \addvspace{6\p@\@plus9\p@}%
-  \hbox to\columnwidth{\hss\normalfont\normalsize
-    \translname{ }%
-    \andify\@translators \uppercasenonmath\@translators
-    \@translators}
-  \endgroup
-}
-\newcommand{\xandlist}[4]{\@andlista{{#1}{#2}{#3}}#4\and\and}
-\def\@andlista#1#2\and#3\and{\@andlistc{#2}\@ifnotempty{#3}{%
-  \@andlistb#1{#3}}}
-\def\@andlistb#1#2#3#4#5\and{%
-  \@ifempty{#5}{%
-    \@andlistc{#2#4}%
-  }{%
-    \@andlistc{#1#4}\@andlistb{#1}{#3}{#3}{#5}%
-  }}
-\let\@andlistc\@iden
-\newcommand{\nxandlist}[4]{%
-  \def\@andlistc##1{\toks@\@xp{\the\toks@##1}}%
-  \toks@{\toks@\@emptytoks \@andlista{{#1}{#2}{#3}}}%
-  \the\@xp\toks@#4\and\and
-  \edef#4{\the\toks@}%
-  \let\@andlistc\@iden}
-\def\@@and{and}
-\newcommand{\andify}{%
-  \nxandlist{\unskip, }{\unskip{} \@@and~}{\unskip, \@@and~}}
-\def\and{\unskip{ }\@@and{ }\ignorespaces}
-\def\maketitle{\par
-  \@topnum\z@ % this prevents figures from falling at the top of page 1
-  \@setcopyright
-  \thispagestyle{firstpage}% this sets first page specifications
-  \uppercasenonmath\shorttitle
-  \ifx\@empty\shortauthors \let\shortauthors\shorttitle
-  \else \andify\shortauthors
-  \fi
-  \@maketitle@hook
-  \begingroup
-  \@maketitle
-  \toks@\@xp{\shortauthors}\@temptokena\@xp{\shorttitle}%
-  \toks4{\def\\{ \ignorespaces}}% defend against questionable usage
-  \edef\@tempa{%
-    \@nx\markboth{\the\toks4
-      \@nx\MakeUppercase{\the\toks@}}{\the\@temptokena}}%
-  \@tempa
-  \endgroup
-  \c@footnote\z@
-  \@cleartopmattertags
-}
-\def\@cleartopmattertags{%
-  \def\do##1{\let##1\relax}%
-  \do\maketitle \do\@maketitle \do\title \do\@xtitle \do\@title
-  \do\author \do\@xauthor \do\address \do\@xaddress
-  \do\contrib \do\contribs \do\xcontribs \do\toccontribs
-  \do\email \do\@xemail \do\curraddr \do\@xcurraddr
-  \do\dedicatory \do\@dedicatory \do\thanks \do\thankses
-  \do\keywords \do\@keywords \do\subjclass \do\@subjclass
-}
-\def\@maketitle@hook{\global\let\@maketitle@hook\@empty}
-\def\@maketitle{%
-  \normalfont\normalsize
-  \@adminfootnotes
-  \@mkboth{\@nx\shortauthors}{\@nx\shorttitle}%
-  \global\topskip8pc\relax % 10pc to base of first title line
-  \@settitle
-  \ifx\@empty\authors \else \@setauthors \fi
-  \ifx\@empty\@dedicatory
-  \else
-    \baselineskip26\p@
-    \vtop{\centering{\footnotesize\itshape\@dedicatory\@@par}%
-      \global\dimen@i\prevdepth}\prevdepth\dimen@i
-  \fi
-  \@setabstract
-  \normalsize
-  \if@titlepage
-    \newpage
-  \else
-    \dimen@34\p@ \advance\dimen@-\baselineskip
-    \vskip\dimen@\relax
-  \fi
-} % end \@maketitle
-\def\@adminfootnotes{%
-  \let\@makefnmark\relax  \let\@thefnmark\relax
-  \ifx\@empty\@subjclass\else \@footnotetext{\@setsubjclass}\fi
-  \ifx\@empty\@keywords\else \@footnotetext{\@setkeywords}\fi
-  \ifx\@empty\thankses\else \@footnotetext{%
-    \def\par{\let\par\@par}\@setthanks}%
-  \fi
-}
-\AtBeginDocument{%
-  \@ifundefined{publname}{%
-    \let\publname\@empty
-    \let\@serieslogo\@empty
-  }{%
-    \def\@serieslogo{\procart@logo}%
-  }%
-}
-\AtBeginDocument{%
-  \@ifundefined{volinfo}{\let\volinfo\@empty}{}
-}
-\def\issueinfo#1#2#3#4{\def\currentvolume{#1}\def\currentissue{#2}%
-  \def\currentmonth{#3}\def\currentyear{#4}}
-\issueinfo{00}% volume number
-  {0}%        % issue number
-  {Xxxx}%     % month
-  {XXXX}%     % year
-\newcommand{\copyrightinfo}[2]{%
-  \def\copyrightyear{#1}%
-  \@ifnotempty{#2}{\def\copyrightholder{#2}}%
-}
-\copyrightinfo{0000}{(copyright holder)}
-\def\pagespan#1#2{\setcounter{page}{#1}%
-  \ifnum\c@page<\z@ \pagenumbering{roman}\setcounter{page}{-#1}\fi
-  \def\start@page{#1}\def\end@page{#2}}
-\pagespan{000}{000}
-\newinsert\copyins
-\skip\copyins=1.5pc
-\count\copyins=1000 % magnification factor, 1000 = 100%
-\dimen\copyins=.5\textheight % maximum allowed per page
-\g@addto@macro\@reinserts{%
-  \ifvoid\copyins\else\insert\copyins{\unvbox\copyins}\fi
-}
-\def\@copyinsfontsize{\fontsize{6}{7\p@}\normalfont\upshape}
-\newif\if@extracrline  \@extracrlinefalse
-\let\@extracrline\@empty
-\relax
-\def\@setcopyright{%
-  \ifx\@empty\@serieslogo
-  \else\ifx\@empty\copyrightyear
-  \else
-    \insert\copyins{\hsize\textwidth
-      \parfillskip\z@\relax
-      \leftskip\z@\@plus.9\textwidth\relax \rightskip\z@\relax
-      \@copyinsfontsize
-      \everypar{}%
-      \vskip-\skip\copyins
-      \if@extracrline
-        \vskip-6pt
-      \fi
-      \nointerlineskip
-      \leavevmode\hfill\vrule\@width\z@\@height\skip\copyins
-      \copyright\copyrightyear\ \copyrightholder\ignorespaces
-      \if@extracrline \@extracrline \fi
-      \par
-      \kern\z@}%
-  \fi\fi
-}
-\def\@combinefloats{%
-  \ifx \@toplist\@empty \else \@cflt \fi
-  \ifx \@botlist\@empty \else \@cflb \fi
-  \ifvoid\copyins \else \@cflci \fi
-}
-\def\@cflci{%
-  \setbox\@outputbox\vbox{%
-    \unvbox\@outputbox
-    \vskip\skip\copyins
-    \if@twocolumn \else \vskip\z@ plus\p@ \fi
-    \hbox to\columnwidth{%
-      \hss\vbox to\z@{\vss
-        \if@twocolumn
-          \if@firstcolumn \else \unvbox\copyins \fi
-        \else
-          \unvbox\copyins
-        \fi
-        }}}%
-  \if@twocolumn \if@firstcolumn
-    \insert\copyins{\unvbox\copyins}%
-  \fi\fi
-  \global\count\copyins=999 \relax
-}
-\newcommand{\abstractname}{Abstract}
-\newcommand{\keywordsname}{Key words and phrases}
-\newcommand{\subjclassname}{%
-  \textup{1991} Mathematics Subject Classification}
-\@xp\let\csname subjclassname@1991\endcsname \subjclassname
-\@namedef{subjclassname@2000}{%
-  \textup{2000} Mathematics Subject Classification}
-\def\@tempb{amsproc}
-\ifx\@classname\@tempb
-  \newcommand{\datename}{\textit{Date}:}
-\else
-  \newcommand{\datename}{Received by the editors}
-\fi
-\def\@settitle{\begin{center}%
- \Large
-    \bfseries
-  \@title
-  \end{center}%
-}
-\def\author@andify{%
-  \nxandlist {\unskip ,\penalty-1 \space\ignorespaces}%
-    {\unskip {} \@@and~}%
-    {\unskip ,\penalty-2 \space \@@and~}%
-}
-\def\@setauthors{%
-  \begingroup
-  \def\thanks{\protect\thanks@warning}%
-  \trivlist
-  \centering \fontsize{11}{13\p@}\selectfont\@topsep13\p@\relax
-  \item\relax
-  \author@andify\authors
-  \def\\{\protect\linebreak}%
-  \authors
-  \ifx\@empty\contribs
-  \else
-    ,\penalty-3 \space \@setcontribs
-    \@closetoccontribs
-  \fi
-  \endtrivlist
-  \endgroup
-}
-\def\@closetoccontribs{}
-\def\@setcontribs{%
-  \@xcontribs
-  \xcontribs
-}
-\def\@setdate{\datename\ \@date\@addpunct.}
-\def\@setsubjclass{%
-  {\itshape\subjclassname.}\enspace\@subjclass\@addpunct.}
-\def\@setkeywords{%
-  {\itshape \keywordsname.}\enspace \@keywords\@addpunct.}
-\def\@setthanks{\def\thanks##1{\par##1\@addpunct.}\thankses}
-\newbox\abstractbox
-\newenvironment{abstract}{%
-  \ifx\maketitle\relax
-    \ClassWarning{\@classname}{Abstract should precede
-      \protect\maketitle\space in AMS document classes; reported}%
-  \fi
-  \global\setbox\abstractbox=\vtop \bgroup
-    \normalfont\Small
-    \list{}{\labelwidth\z@
-      \leftmargin3pc \rightmargin\leftmargin
-      \listparindent\normalparindent \itemindent\z@
-      \parsep\z@ \@plus\p@
-      \let\fullwidthdisplay\relax
-    }%
-    \item[\hskip\labelsep\scshape\abstractname.]%
-}{%
-  \endlist\egroup
-  \ifx\@setabstract\relax \@setabstracta \fi
-}
-\def\@setabstract{\@setabstracta \global\let\@setabstract\relax}
-\def\@setabstracta{%
-  \ifvoid\abstractbox
-  \else
-    \skip@20\p@ \advance\skip@-\lastskip
-    \advance\skip@-\baselineskip \vskip\skip@
-    \box\abstractbox
-    \prevdepth\z@ % because \abstractbox is a vtop
-  \fi
-}
-\def\titlepage{%
-  \clearpage
-  \thispagestyle{empty}\setcounter{page}{0}}
-\def\endtitlepage{\newpage}
-\def\labelenumi{(\theenumi)}
-\def\theenumi{\@arabic\c@enumi}
-\def\labelenumii{(\theenumii)}
-\def\theenumii{\@alph\c@enumii}
-\def\p@enumii{\theenumi}
-\def\labelenumiii{(\theenumiii)}
-\def\theenumiii{\@roman\c@enumiii}
-\def\p@enumiii{\theenumi(\theenumii)}
-\def\labelenumiv{(\theenumiv)}
-\def\theenumiv{\@Alph\c@enumiv}
-\def\p@enumiv{\p@enumiii\theenumiii}
-\def\labelitemi{$\m@th\bullet$}
-\def\labelitemii{\bfseries --}% \upshape already done by \itemize
-\def\labelitemiii{$\m@th\ast$}
-\def\labelitemiv{$\m@th\cdot$}
-\newenvironment{verse}{\let\\\@centercr
-  \list{}{\itemsep\z@ \itemindent -1.5em\listparindent\itemindent
-  \rightmargin\leftmargin \advance\leftmargin 1.5em}\item[]%
-}{%
-  \endlist
-}
-\let\endverse=\endlist % for efficiency
-\newenvironment{quotation}{\list{}{%
-    \leftmargin3pc \listparindent\normalparindent
-    \itemindent\z@
-    \rightmargin\leftmargin \parsep\z@ \@plus\p@}%
-  \item[]%
-}{%
-  \endlist
-}
-\let\endquotation=\endlist % for efficiency
-\newenvironment{quote}{%
-  \list{}{\rightmargin\leftmargin}\item[]%
-}{%
-  \endlist
-}
-\let\endquote=\endlist % for efficiency
-\def\trivlist{\parsep\parskip\@nmbrlistfalse
-  \@trivlist \labelwidth\z@ \leftmargin\z@
-  \itemindent\z@
-  \let\@itemlabel\@empty
-  \def\makelabel##1{\upshape##1}}
-\renewenvironment{enumerate}{%
-  \ifnum \@enumdepth >3 \@toodeep\else
-      \advance\@enumdepth \@ne
-      \edef\@enumctr{enum\romannumeral\the\@enumdepth}\list
-      {\csname label\@enumctr\endcsname}{\usecounter
-        {\@enumctr}\def\makelabel##1{\hss\llap{\upshape##1}}}\fi
-}{%
-  \endlist
-}
-\let\endenumerate=\endlist % for efficiency
-\renewenvironment{itemize}{%
-  \ifnum\@itemdepth>3 \@toodeep
-  \else \advance\@itemdepth\@ne
-    \edef\@itemitem{labelitem\romannumeral\the\@itemdepth}%
-    \list{\csname\@itemitem\endcsname}%
-      {\def\makelabel##1{\hss\llap{\upshape##1}}}%
-  \fi
-}{%
-  \endlist
-}
-\let\enditemize=\endlist % for efficiency
-\newcommand{\descriptionlabel}[1]{\hspace\labelsep \upshape\bfseries #1:}
-\newenvironment{description}{\list{}{%
-  \advance\leftmargini6\p@ \itemindent-12\p@
-  \labelwidth\z@ \let\makelabel\descriptionlabel}%
-}{
-  \endlist
-}
-\let\enddescription=\endlist % for efficiency
-\let\upn=\textup
-\AtBeginDocument{%
-  \labelsep=5pt\relax
-  \setcounter{enumi}{13}\setcounter{enumii}{13}%
-  \setcounter{enumiii}{13}\setcounter{enumiv}{13}%
-  \settowidth\leftmargini{\labelenumi\hskip\labelsep}%
-  \advance\leftmargini by \normalparindent
-  \settowidth\leftmarginii{\labelenumii\hskip\labelsep}%
-  \settowidth\leftmarginiii{\labelenumiii\hskip\labelsep}%
-  \settowidth\leftmarginiv{\labelenumiv\hskip\labelsep}%
-  \setcounter{enumi}{0}\setcounter{enumii}{0}%
-  \setcounter{enumiii}{0}\setcounter{enumiv}{0}%
-  \leftmarginv=10pt  \leftmarginvi=\leftmarginv
-  \leftmargin=\leftmargini
-  \labelwidth=\leftmargini \advance\labelwidth-\labelsep
-  \@listi}
-\newskip\listisep
-\listisep\smallskipamount
-\def\@listI{\leftmargin\leftmargini \parsep\z@skip
-  \topsep\listisep \itemsep\z@skip
-  \listparindent\normalparindent}
-\let\@listi\@listI
-\def\@listii{\leftmargin\leftmarginii
-  \labelwidth\leftmarginii \advance\labelwidth-\labelsep
-  \topsep\z@skip \parsep\z@skip \partopsep\z@skip \itemsep\z@skip}
-\def\@listiii{\leftmargin\leftmarginiii
-  \labelwidth\leftmarginiii \advance\labelwidth-\labelsep}
-\def\@listiv{\leftmargin\leftmarginiv
-  \labelwidth\leftmarginiv \advance\labelwidth-\labelsep}
-\def\@listv{\leftmargin\leftmarginv
-  \labelwidth\leftmarginv \advance\labelwidth-\labelsep}
-\def\@listvi{\leftmargin\leftmarginvi
-  \labelwidth\leftmarginvi \advance\labelwidth-\labelsep}
-\@ifclasswith{\@classname}{fleqn}{%
-  \let\@tempa\@iden
-  \AtBeginDocument{\mathindent\leftmargini}%
-}{\let\@tempa\@gobble}%
-\@ifpackageloaded{amsmath}{\let\@tempa\@gobble}{%
-  \@ifpackageloaded{amstex}{\let\@tempa\@gobble}{}%
-}
-\@tempa{%
-  \def\[{\relax
-    \ifmmode\@badmath
-    \else
-      \begin{trivlist}%
-      \@beginparpenalty\predisplaypenalty
-      \@endparpenalty\postdisplaypenalty
-      \item[]\leavevmode
-      \hbox to\linewidth\bgroup$\displaystyle
-      \hskip\mathindent\bgroup
-    \fi}%
-  \def\]{\relax
-    \ifmmode
-      \egroup \m@th$\hfil \egroup
-      \end{trivlist}%
-    \else \@badmath
-    \fi}%
-  \renewenvironment{equation}{%
-    \@beginparpenalty\predisplaypenalty
-    \@endparpenalty\postdisplaypenalty
-    \refstepcounter{equation}%
-    \@topsep\abovedisplayskip \trivlist
-    \item[]\leavevmode
-    \hbox to\linewidth\bgroup\hskip\mathindent$\displaystyle
-  }{%
-    \m@th$\hfil \displaywidth\linewidth \hbox{\@eqnnum}\egroup
-    \endtrivlist
-  }%
-  \renewenvironment{eqnarray}{%
-    \stepcounter{equation}\let\@currentlabel\theequation
-    \global\@eqnswtrue \global\@eqcnt\z@ \tabskip\mathindent
-    \let\\=\@eqncr \abovedisplayskip\topsep
-    \ifvmode \advance\abovedisplayskip\partopsep \fi
-    \belowdisplayskip\abovedisplayskip
-    \belowdisplayshortskip\abovedisplayskip
-    \abovedisplayshortskip\abovedisplayskip
-    $$\everycr{}\halign to\linewidth\bgroup
-      \hskip\@centering
-      $\displaystyle\tabskip\z@skip####\m@th$&%
-      \@eqnsel \global\@eqcnt\@ne
-      \hfil${}####{}\m@th$\hfil&%
-      \global\@eqcnt\tw@
-      $\displaystyle ####\m@th$\hfil\tabskip\@centering&%
-      \global\@eqcnt\thr@@
-      \hbox to \z@\bgroup\hss####\egroup\tabskip\z@skip\cr
-    }{%
-      \@@eqncr \egroup \global\advance\c@equation\m@ne$$%
-      \global\@ignoretrue
-    }%
-  \newdimen\mathindent
-  \mathindent\leftmargini
-}
-\def\@startsection#1#2#3#4#5#6{%
- \if@noskipsec \leavevmode \fi
- \par \@tempskipa #4\relax
- \@afterindenttrue
- \ifdim \@tempskipa <\z@ \@tempskipa -\@tempskipa \@afterindentfalse\fi
- \if@nobreak \everypar{}\else
-     \addpenalty\@secpenalty\addvspace\@tempskipa\fi
- \@ifstar{\@dblarg{\@sect{#1}{\@m}{#3}{#4}{#5}{#6}}}%
-         {\@dblarg{\@sect{#1}{#2}{#3}{#4}{#5}{#6}}}%
-}
-\def\@seccntformat#1{%
-  \protect\textup{\protect\@secnumfont
-    \csname the#1\endcsname
-    \protect\@secnumpunct
-  }%
-}
-\let\@secnumfont\@empty
-\def\@sect#1#2#3#4#5#6[#7]#8{%
-  \edef\@toclevel{\ifnum#2=\@m 0\else\number#2\fi}%
-  \ifnum #2>\c@secnumdepth \let\@secnumber\@empty
-  \else \@xp\let\@xp\@secnumber\csname the#1\endcsname\fi
-  \@tempskipa #5\relax
-  \ifnum #2>\c@secnumdepth
-    \let\@svsec\@empty
-  \else
-    \refstepcounter{#1}%
-    \edef\@secnumpunct{%
-      \ifdim\@tempskipa>\z@ % not a run-in section heading
-        \@ifnotempty{#8}{.\@nx\enspace}%
-      \else
-        \@ifempty{#8}{.}{.\@nx\enspace}%
-      \fi
-    }%
-    \protected@edef\@svsec{%
-      \ifnum#2<\@m
-        \@ifundefined{#1name}{}{%
-          \ignorespaces\csname #1name\endcsname\space
-        }%
-      \fi
-      \@seccntformat{#1}%
-    }%
-  \fi
-  \ifdim \@tempskipa>\z@ % then this is not a run-in section heading
-    \begingroup #6\relax
-    \@hangfrom{\hskip #3\relax\@svsec}{\interlinepenalty\@M #8\par}%
-    \endgroup
-    \ifnum#2>\@m \else \@tocwrite{#1}{#8}\fi
-  \else
-  \def\@svsechd{#6\hskip #3\@svsec
-    \@ifnotempty{#8}{\ignorespaces#8\unskip
-       \@addpunct.}%
-    \ifnum#2>\@m \else \@tocwrite{#1}{#8}\fi
-  }%
-  \fi
-  \global\@nobreaktrue
-  \@xsect{#5}}
-\let\@ssect\relax
-\newcounter{part}
-\newcounter{section}
-\newcounter{subsection}[section]
-\newcounter{subsubsection}[subsection]
-\newcounter{paragraph}[subsubsection]
-\newcounter{subparagraph}[paragraph]
-\renewcommand\thepart          {\arabic{part}}
-\renewcommand\thesection       {\arabic{section}}
-\renewcommand\thesubsection    {\thesection.\arabic{subsection}}
-\renewcommand\thesubsubsection {\thesubsection .\arabic{subsubsection}}
-\renewcommand\theparagraph     {\thesubsubsection.\arabic{paragraph}}
-\renewcommand\thesubparagraph  {\theparagraph.\arabic{subparagraph}}
-\setcounter{secnumdepth}{3}
-\def\partname{Part}
-\def\part{\@startsection{part}{0}%
-  \z@{\linespacing\@plus\linespacing}{.5\linespacing}%
-  {\normalfont\bfseries\raggedright}}
-\def\specialsection{\@startsection{section}{1}%
-  \z@{2\linespacing\@plus\linespacing}{.5\linespacing}%
-  {\large\scshape\centering}}
-\def\section{\@startsection{section}{1}%
-  \z@{.7\linespacing\@plus\linespacing}{.5\linespacing}%
-  {\normalfont\bfseries\centering}}
-\def\subsection{\@startsection{subsection}{2}%
-  \normalparindent{.5\linespacing\@plus.7\linespacing}{-.5em}%
-  {\normalfont\bfseries}}
-\def\subsubsection{\@startsection{subsubsection}{3}%
-  \normalparindent\z@{-.5em}%
-  {\normalfont\itshape}}
-\def\paragraph{\@startsection{paragraph}{4}%
-  \normalparindent\z@{-\fontdimen2\font}%
-  \normalfont}
-\def\subparagraph{\@startsection{subparagraph}{5}%
-  \z@\z@{-\fontdimen2\font}%
-  \normalfont}
-\def\appendix{\par\c@section\z@ \c@subsection\z@
-   \let\sectionname\appendixname
-   \def\thesection{\@Alph\c@section}}
-\def\appendixname{Appendix}
-\def\@Roman#1{\@xp\@slowromancap
-  \romannumeral#1@}%
-\def\@slowromancap#1{\ifx @#1% then terminate
-  \else
-    \if i#1I\else\if v#1V\else\if x#1X\else\if l#1L\else\if
-    c#1C\else\if m#1M\else#1\fi\fi\fi\fi\fi\fi
-    \@xp\@slowromancap
-  \fi
-}
-\def\aufm#1{\par\vspace*{12pt}{\flushright #1\par}}
-\newcommand{\@pnumwidth}{1.6em}
-\newcommand{\@tocrmarg}{2.6em}
-\setcounter{tocdepth}{1}
-\newswitch{toc}
-\newswitch{lof}
-\newswitch{lot}
-\newcommand\contentsnamefont{\scshape}
-\def\@starttoc#1#2{\begingroup
-  \setTrue{#1}%
-  \par\removelastskip\vskip\z@skip
-  \@startsection{}\@M\z@{\linespacing\@plus\linespacing}%
-    {.5\linespacing}{\centering\contentsnamefont}{#2}%
-  \ifx\contentsname#2%
-  \else \addcontentsline{toc}{section}{#2}\fi
-  \makeatletter
-  \@input{\jobname.#1}%
-  \if@filesw
-    \@xp\newwrite\csname tf@#1\endcsname
-    \immediate\@xp\openout\csname tf@#1\endcsname \jobname.#1\relax
-  \fi
-  \global\@nobreakfalse \endgroup
-  \addvspace{32\p@\@plus14\p@}%
-  \let\tableofcontents\relax
-}
-\def\contentsname{Contents}
-\def\listfigurename{List of Figures}
-\def\listtablename{List of Tables}
-\def\tableofcontents{%
-  \@starttoc{toc}\contentsname
-}
-\def\listoffigures{\@starttoc{lof}\listfigurename}
-\def\listoftables{\@starttoc{lot}\listtablename}
-\AtBeginDocument{%
-  \@for\@tempa:=-1,0,1,2,3\do{%
-    \@ifundefined{r@tocindent\@tempa}{%
-      \@xp\gdef\csname r@tocindent\@tempa\endcsname{0pt}}{}%
-  }%
-}
-\def\@writetocindents{%
-  \begingroup
-  \@for\@tempa:=-1,0,1,2,3\do{%
-    \immediate\write\@auxout{%
-      \string\newlabel{tocindent\@tempa}{%
-        \csname r@tocindent\@tempa\endcsname}}%
-  }%
-  \endgroup}
-\AtEndDocument{\@writetocindents}
-
-\let\indentlabel\@empty
-\def\@tochangmeasure#1{\sbox\z@{#1}%
-  \ifdim\wd\z@>\csname r@tocindent\@toclevel\endcsname\relax
-    \@xp\xdef\csname r@tocindent\@toclevel\endcsname{\the\wd\z@}%
-  \fi
-}
-\def\@toclevel{0}
-\def\@tocline#1#2#3#4#5#6#7{\relax
-  \ifnum #1>\c@tocdepth % then omit
-  \else
-    \par \addpenalty\@secpenalty\addvspace{#2}%
-    \begingroup \hyphenpenalty\@M
-    \@ifempty{#4}{%
-      \@tempdima\csname r@tocindent\number#1\endcsname\relax
-    }{%
-      \@tempdima#4\relax
-    }%
-    \parindent\z@ \leftskip#3\relax \advance\leftskip\@tempdima\relax
-    \rightskip\@pnumwidth plus4em \parfillskip-\@pnumwidth
-    #5\leavevmode\hskip-\@tempdima #6\nobreak\relax
-    \hfil\hbox to\@pnumwidth{\@tocpagenum{#7}}\par
-    \nobreak
-    \endgroup
-  \fi}
-\def\@tocpagenum#1{\hss{\mdseries #1}}
-\def\@tocwrite#1{\@xp\@tocwriteb\csname toc#1\endcsname{#1}}
-\def\@tocwriteb#1#2#3{%
-  \begingroup
-    \def\@tocline##1##2##3##4##5##6{%
-      \ifnum##1>\c@tocdepth
-      \else \sbox\z@{##5\let\indentlabel\@tochangmeasure##6}\fi}%
-    \csname l@#2\endcsname{#1{\csname#2name\endcsname}{\@secnumber}{}}%
-  \endgroup
-  \addcontentsline{toc}{#2}%
-    {\protect#1{\csname#2name\endcsname}{\@secnumber}{#3}}}
-\def\l@section{\@tocline{1}{0pt}{1pc}{}{}}
-\newcommand{\tocsection}[3]{%
-  \indentlabel{\@ifnotempty{#2}{\ignorespaces#1 #2.\quad}}#3}
-\def\l@subsection{\@tocline{2}{0pt}{1pc}{5pc}{}}
-\let\tocsubsection\tocsection
-\def\l@subsubsection{\@tocline{3}{0pt}{1pc}{7pc}{}}
-\let\tocsubsubsection\tocsection
-\let\l@paragraph\l@subsubsection
-\let\tocparagraph\tocsection
-\let\l@subparagraph\l@subsubsection
-\let\tocsubparagraph\tocsection
-\def\l@part{\@tocline{-1}{12pt plus2pt}{0pt}{}{\bfseries}}
-\let\tocpart\tocsection
-\def\l@chapter{\@tocline{0}{8pt plus1pt}{0pt}{}{}}
-\let\tocchapter\tocsection
-\newcommand{\tocappendix}[3]{%
-  \indentlabel{#1\@ifnotempty{#2}{ #2}.\quad}#3}
-\def\l@figure{\@tocline{0}{3pt plus2pt}{0pt}{1.5pc}{}}
-\let\l@table=\l@figure
-\def\refname{References}
-\def\bibname{Bibliography}
-\def\@defaultbiblabelstyle#1{#1.}
-\def\bibliographystyle#1{%
-    \if@filesw\immediate\write\@auxout{\string\bibstyle{#1}}\fi
-    \def\@tempa{#1}%
-    \def\@tempb{amsplain}%
-    \def\@tempc{}%
-    \ifx\@tempa\@tempb
-        \def\@biblabel##1{\@defaultbiblabelstyle{##1}}%
-        \def\bibsetup{}%
-    \else
-        \def\bibsetup{\labelsep6\p@}%
-        \ifx\@tempa\@tempc
-            \def\@biblabel##1{}%
-            \def\bibsetup{\labelwidth\z@ \leftmargin24\p@
-                \itemindent-\leftmargin
-                \labelsep\z@ }%
-        \fi
-    \fi}
-\newcommand{\bibliofont}{\footnotesize}
-\newcommand{\@bibtitlestyle}{%
-  \@xp\section\@xp*\@xp{\refname}%
-}
-\newenvironment{thebibliography}[1]{%
-  \@bibtitlestyle
-  \normalfont\bibliofont\labelsep .5em\relax
-  \renewcommand\theenumiv{\arabic{enumiv}}\let\p@enumiv\@empty
-  \list{\@biblabel{\theenumiv}}{\settowidth\labelwidth{\@biblabel{#1}}%
-    \leftmargin\labelwidth \advance\leftmargin\labelsep
-    \usecounter{enumiv}}%
-  \sloppy \clubpenalty\@M \widowpenalty\clubpenalty
-  \sfcode`\.=\@m
-}{%
-  \def\@noitemerr{\@latex@warning{Empty `thebibliography' environment}}%
-  \endlist
-}
-\def\bysame{\leavevmode\hbox to3em{\hrulefill}\thinspace}
-\def\newblock{}
-\newcommand\MR[1]{\relax\ifhmode\unskip\spacefactor3000 \space\fi
-  MR~\MRhref{#1}{#1}}
-\let\MRhref\@gobble
-\newcommand\URL{\begingroup
-  \def\@sverb##1{%
-    \def\@tempa####1##1{\@URL{####1}\egroup\endgroup}%
-    \@tempa}%
-  \verb}
-\let\URLhref\@gobble
-\def\@URL#1{\URLhref{#1}#1}
-\newif\if@restonecol
-\newcommand{\@indextitlestyle}{%
-  \twocolumn[\@xp\section\@xp*\@xp{\indexname}]%
-}
-\def\theindex{\@restonecoltrue\if@twocolumn\@restonecolfalse\fi
-  \columnseprule\z@ \columnsep 35\p@
-  \@indextitlestyle
-  \thispagestyle{plain}%
-  \let\item\@idxitem
-  \parindent\z@  \parskip\z@\@plus.3\p@\relax
-  \raggedright
-  \hyphenpenalty\@M
-  \footnotesize}
-\def\indexname{Index}
-\def\@idxitem{\par\hangindent 2em}
-\def\subitem{\par\hangindent 2em\hspace*{1em}}
-\def\subsubitem{\par\hangindent 3em\hspace*{2em}}
-\def\endtheindex{\if@restonecol\onecolumn\else\clearpage\fi}
-\def\indexspace{\par\bigskip}
-\def\footnoterule{\kern-.4\p@
-        \hrule\@width 5pc\kern11\p@\kern-\footnotesep}
-\def\@makefnmark{%
-  \leavevmode
-  \raise.9ex\hbox{\fontsize\sf@size\z@\normalfont\@thefnmark}%
-}
-\def\@makefntext{\indent\@makefnmark}
-\long\def\@footnotetext#1{%
-  \insert\footins{%
-    \normalfont\footnotesize
-    \interlinepenalty\interfootnotelinepenalty
-    \splittopskip\footnotesep \splitmaxdepth \dp\strutbox
-    \floatingpenalty\@MM \hsize\columnwidth
-    \@parboxrestore \parindent\normalparindent \sloppy
-    \protected@edef\@currentlabel{%
-      \csname p@footnote\endcsname\@thefnmark}%
-    \@makefntext{%
-      \rule\z@\footnotesep\ignorespaces#1\unskip\strut\par}}}
-\hfuzz=1pt \vfuzz=\hfuzz
-\def\sloppy{\tolerance9999 \emergencystretch 3em\relax}
-\setcounter{topnumber}{4}
-\setcounter{bottomnumber}{4}
-\setcounter{totalnumber}{4}
-\setcounter{dbltopnumber}{4}
-\renewcommand{\topfraction}{.97}
-\renewcommand{\bottomfraction}{.97}
-\renewcommand{\textfraction}{.03}
-\renewcommand{\floatpagefraction}{.9}
-\renewcommand{\dbltopfraction}{.97}
-\renewcommand{\dblfloatpagefraction}{.9}
-\setlength{\floatsep}{12pt plus 6pt minus 4pt}
-\setlength{\textfloatsep}{15pt plus 8pt minus 5pt}
-\setlength{\intextsep}{12pt plus 6pt minus 4pt}
-\setlength{\dblfloatsep}{12pt plus 6pt minus 4pt}
-\setlength{\dbltextfloatsep}{15pt plus 8pt minus 5pt}
-\setlength{\@fptop}{0pt}% removed "plus 1fil"
-\setlength{\@fpsep}{8pt}% removed "plus 2fil"
-\setlength{\@fpbot}{0pt plus 1fil}
-\setlength{\@dblfptop}{0pt}% removed "plus 1fil"
-\setlength{\@dblfpsep}{8pt}% removed "plus 2fil"
-\setlength{\@dblfpbot}{0pt plus 1fil}
-\newcommand{\fps@figure}{tbp}
-\newcommand{\fps@table}{tbp}
-\newcounter{figure}
-\def\@captionheadfont{\scshape}
-\def\@captionfont{\normalfont}
-\def\ftype@figure{1}
-\def\ext@figure{lof}
-\def\fnum@figure{\figurename\ \thefigure}
-\def\figurename{Figure}
-\newenvironment{figure}{%
-  \@float{figure}%
-}{%
-  \end@float
-}
-\newenvironment{figure*}{%
-  \@dblfloat{figure}%
-}{%
-  \end@dblfloat
-}
-\newcounter{table}
-\def\ftype@table{2}
-\def\ext@table{lot}
-\def\fnum@table{\tablename\ \thetable}
-\def\tablename{Table}
-\newenvironment{table}{%
-  \@float{table}%
-}{%
-  \end@float
-}
-\newenvironment{table*}{%
-  \@dblfloat{table}%
-}{%
-  \end@dblfloat
-}
-\def\@floatboxreset{\global\@minipagefalse \centering}
-\long\def\@makecaption#1#2{%
-  \setbox\@tempboxa\vbox{\color@setgroup
-    \advance\hsize-2\captionindent\noindent
-    \@captionfont\@captionheadfont#1\@xp\@ifnotempty\@xp
-        {\@cdr#2\@nil}{.\@captionfont\upshape\enspace#2}%
-    \unskip\kern-2\captionindent\par
-    \global\setbox\@ne\lastbox\color@endgroup}%
-  \ifhbox\@ne % the normal case
-    \setbox\@ne\hbox{\unhbox\@ne\unskip\unskip\unpenalty\unkern}%
-  \fi
-  \ifdim\wd\@tempboxa=\z@ % this means caption will fit on one line
-    \setbox\@ne\hbox to\columnwidth{\hss\kern-2\captionindent\box\@ne\hss}%
-  \else % tempboxa contained more than one line
-    \setbox\@ne\vbox{\unvbox\@tempboxa\parskip\z@skip
-        \noindent\unhbox\@ne\advance\hsize-2\captionindent\par}%
-  \fi
-  \ifnum\@tempcnta<64 % if the float IS a figure...
-    \addvspace\abovecaptionskip
-    \hbox to\hsize{\kern\captionindent\box\@ne\hss}%
-  \else % if the float IS NOT a figure...
-    \hbox to\hsize{\kern\captionindent\box\@ne\hss}%
-    \nobreak
-    \vskip\belowcaptionskip
-  \fi
-\relax
-}
-\newskip\abovecaptionskip \abovecaptionskip=12pt \relax
-\newskip\belowcaptionskip \belowcaptionskip=12pt \relax
-\newdimen\captionindent \captionindent=3pc
-\def\nonbreakingspace{\unskip\nobreak\ \ignorespaces}
-\def~{\protect\nonbreakingspace}
-\def\@biblabel#1{\@ifnotempty{#1}{[#1]}}
-\def\@citestyle{\m@th\upshape\mdseries}
-\def\citeform#1{{\bfseries#1}}
-\def\@cite#1#2{{%
-  \@citestyle[\citeform{#1}\if@tempswa, #2\fi]}}
-\@ifundefined{cite }{%
-  \expandafter\let\csname cite \endcsname\cite
-  \edef\cite{\@nx\protect\@xp\@nx\csname cite \endcsname}%
-}{}
-\def\fullwidthdisplay{\displayindent\z@ \displaywidth\columnwidth}
-\edef\@tempa{\noexpand\fullwidthdisplay\the\everydisplay}
-\everydisplay\expandafter{\@tempa}
-\newcommand*\seeonlyname{see}
-\newcommand*\seename{see also}
-\newcommand*\alsoname{see also}
-\newcommand*\seeonly[2]{\emph{\seeonlyname} #1}
-\newcommand*\see[2]{\emph{\seename} #1}
-\newcommand*\seealso[2]{\emph{\alsoname} #1}
-\newcommand\printindex{\@input{\jobname.ind}}
-\DeclareRobustCommand\textprime{\leavevmode
-  \raise.8ex\hbox{\check@mathfonts\the\scriptfont2 \char48 }}
-
-\newcommand{\theoremstyle}[1]{%
-  \@ifundefined{th@#1}{%
-    \PackageWarning{amsthm}{Unknown theoremstyle `#1'}%
-    \thm@style{plain}%
-  }{%
-    \thm@style{#1}%
-  }%
-}
-\newtoks\thm@style
-\thm@style{plain}
-\newtoks\thm@bodyfont  \thm@bodyfont{\itshape}
-\newtoks\thm@headfont  \thm@headfont{\bfseries}
-\newtoks\thm@notefont  \thm@notefont{}
-\newtoks\thm@headpunct \thm@headpunct{.}
-\newskip\thm@preskip \newskip\thm@postskip
-\def\thm@space@setup{%
-  \thm@preskip=.5\baselineskip\@plus.2\baselineskip
-                             \@minus.2\baselineskip
-  \thm@postskip=\thm@preskip
-}
-\renewcommand{\newtheorem}{\@ifstar{\@xnthm *}{\@xnthm \relax}}
-\def\@xnthm#1#2{%
-  \let\@tempa\relax
-  \@xp\@ifdefinable\csname #2\endcsname{%
-    \global\@xp\let\csname end#2\endcsname\@endtheorem
-    \ifx *#1% unnumbered, need to get one more mandatory arg
-      \edef\@tempa##1{%
-        \gdef\@xp\@nx\csname#2\endcsname{%
-          \@nx\@thm{\@xp\@nx\csname th@\the\thm@style\endcsname}%
-            {}{##1}}}%
-    \else % numbered theorem, need to check for optional arg
-      \def\@tempa{\@oparg{\@ynthm{#2}}[]}%
-    \fi
-  }%
-  \@tempa
-}
-\def\@ynthm#1[#2]#3{%
-  \ifx\relax#2\relax
-    \def\@tempa{\@oparg{\@xthm{#1}{#3}}[]}%
-  \else
-    \@ifundefined{c@#2}{%
-      \def\@tempa{\@nocounterr{#2}}%
-    }{%
-      \@xp\xdef\csname the#1\endcsname{\@xp\@nx\csname the#2\endcsname}%
-      \toks@{#3}%
-      \@xp\xdef\csname#1\endcsname{%
-        \@nx\@thm{%
-          \let\@nx\thm@swap
-            \if S\thm@swap\@nx\@firstoftwo\else\@nx\@gobble\fi
-          \@xp\@nx\csname th@\the\thm@style\endcsname}%
-            {#2}{\the\toks@}}%
-      \let\@tempa\relax
-    }%
-  \fi
-  \@tempa
-}
-\def\@xthm#1#2[#3]{%
-  \ifx\relax#3\relax
-    \newcounter{#1}%
-  \else
-    \newcounter{#1}[#3]%
-    \@xp\xdef\csname the#1\endcsname{\@xp\@nx\csname the#3\endcsname
-      \@thmcountersep\@thmcounter{#1}}%
-  \fi
-  \toks@{#2}%
-  \@xp\xdef\csname#1\endcsname{%
-    \@nx\@thm{%
-      \let\@nx\thm@swap
-        \if S\thm@swap\@nx\@firstoftwo\else\@nx\@gobble\fi
-      \@xp\@nx\csname th@\the\thm@style\endcsname}%
-      {#1}{\the\toks@}}%
-}
-\def\@thm#1#2#3{%
-  \ifhmode\unskip\unskip\par\fi
-  \normalfont
-  \trivlist
-  \let\thmheadnl\relax
-  \let\thm@swap\@gobble
-  \let\thm@indent\indent % indent
-  \thm@headfont{\scshape}% heading font small caps
-  \thm@notefont{\fontseries\mddefault\upshape}%
-  \thm@headpunct{.}% add period after heading
-  \thm@headsep 5\p@ plus\p@ minus\p@\relax
-  \thm@space@setup
-  #1% style overrides
-  \@topsep \thm@preskip               % used by thm head
-  \@topsepadd \thm@postskip           % used by \@endparenv
-  \def\@tempa{#2}\ifx\@empty\@tempa
-    \def\@tempa{\@oparg{\@begintheorem{#3}{}}[]}%
-  \else
-    \refstepcounter{#2}%
-    \def\@tempa{\@oparg{\@begintheorem{#3}{\csname the#2\endcsname}}[]}%
-  \fi
-  \@tempa
-}
-\def\@restorelabelsep{\relax}
-\let\@ythm\relax
-\let\thmname\@iden \let\thmnote\@iden \let\thmnumber\@iden
-\providecommand\@upn{\textup}
-\def\thmhead@plain#1#2#3{%
-  \thmname{#1}\thmnumber{\@ifnotempty{#1}{ }\@upn{#2}}%
-  \thmnote{ {\the\thm@notefont(#3)}}}
-\let\thmhead\thmhead@plain
-\def\swappedhead#1#2#3{%
-  \thmnumber{\@upn{\@secnumfont#2\@ifnotempty{#1}{.~}}}%
-  \thmname{#1}%
-  \thmnote{ {\the\thm@notefont(#3)}}}
-\let\swappedhead@plain=\swappedhead
-\let\thmheadnl\relax
-\let\thm@indent\noindent
-\let\thm@swap\@gobble
-\def\@begintheorem#1#2[#3]{%
-  \deferred@thm@head{\the\thm@headfont \thm@indent
-    \@ifempty{#1}{\let\thmname\@gobble}{\let\thmname\@iden}%
-    \@ifempty{#2}{\let\thmnumber\@gobble}{\let\thmnumber\@iden}%
-    \@ifempty{#3}{\let\thmnote\@gobble}{\let\thmnote\@iden}%
-    \thm@swap\swappedhead\thmhead{#1}{#2}{#3}%
-    \the\thm@headpunct
-    \thmheadnl % possibly a newline.
-    \hskip\thm@headsep
-  }%
-  \ignorespaces}
-\newskip\thm@headsep
-\thm@headsep=5pt plus1pt minus1pt\relax
-\let\adjust@parskip@nobreak=\@nbitem
-\newtoks\dth@everypar
-\dth@everypar={%
-  \@minipagefalse \global\@newlistfalse
-  \@noparitemfalse
-  \if@inlabel
-    \global\@inlabelfalse
-    \begingroup \setbox\z@\lastbox
-     \ifvoid\z@ \kern-\itemindent \fi
-    \endgroup
-    \unhbox\@labels
-  \fi
-  \if@nobreak \@nobreakfalse \clubpenalty\@M
-  \else \clubpenalty\@clubpenalty \everypar{}%
-  \fi
-}%
-\def\deferred@thm@head#1{%
-  \if@inlabel \indent \par \fi % eject a section head if one is pending
-  \if@nobreak
-    \adjust@parskip@nobreak
-  \else
-    \addpenalty\@beginparpenalty
-    \addvspace\@topsep
-    \addvspace{-\parskip}%
-  \fi
-  \global\@inlabeltrue
-  \everypar\dth@everypar
-  \sbox\@labels{\normalfont#1}%
-  \ignorespaces
-}
-\def\nonslanted{\relax
-  \@xp\let\@xp\@tempa\csname\f@shape shape\endcsname
-  \ifx\@tempa\itshape\upshape
-  \else\ifx\@tempa\slshape\upshape\fi\fi}
-\def\swapnumbers{\edef\thm@swap{\if S\thm@swap N\else S\fi}}
-\def\thm@swap{N}%
-\let\@opargbegintheorem\relax
-\def\th@plain{%
-%%  \let\thm@indent\noindent % no indent
-%%  \thm@headfont{\bfseries}% heading font is bold
-%%  \thm@notefont{}% same as heading font
-%%  \thm@headpunct{.}% add period after heading
-%%  \let\thm@swap\@gobble
-%%  \thm@preskip\topsep
-%%  \thm@postskip\theorempreskipamount
-  \itshape % body font
-}
-\def\th@definition{%
-  \normalfont % body font
-}
-\def\th@remark{%
-  \normalfont % body font
-}
-\def\@endtheorem{\endtrivlist\@endpefalse }
-\newcommand{\newtheoremstyle}[9]{%
-  \@ifempty{#5}{\dimen@\z@skip}{\dimen@#5\relax}%
-  \ifdim\dimen@=\z@
-    \toks@{#4\let\thm@indent\noindent}%
-  \else
-    \toks@{#4\def\thm@indent{\noindent\hbox to#5{}}}%
-  \fi
-  \def\@tempa{#8}\ifx\space\@tempa
-    \toks@\@xp{\the\toks@ \thm@headsep\fontdimen\tw@\font\relax}%
-  \else
-    \def\@tempb{\newline}%
-    \ifx\@tempb\@tempa
-      \toks@\@xp{\the\toks@ \thm@headsep\z@skip
-        \def\thmheadnl{\newline}}%
-    \else
-      \toks@\@xp{\the\toks@ \thm@headsep#8\relax}%
-    \fi
-  \fi
-  \begingroup
-  \thm@space@setup
-  \@defaultunits\@tempskipa#2\thm@preskip\relax\@nnil
-  \@defaultunits\@tempskipb#3\thm@postskip\relax\@nnil
-  \xdef\@gtempa{\thm@preskip\the\@tempskipa
-    \thm@postskip\the\@tempskipb\relax}%
-  \endgroup
-  \@temptokena\@xp{\@gtempa
-    \thm@headfont{#6}\thm@headpunct{#7}%
-  }%
-  \@ifempty{#9}{%
-    \let\thmhead\thmhead@plain
-  }{%
-    \@namedef{thmhead@#1}##1##2##3{#9}%
-    \@temptokena\@xp{\the\@temptokena
-      \@xp\let\@xp\thmhead\csname thmhead@#1\endcsname}%
-  }%
-  \@xp\xdef\csname th@#1\endcsname{\the\toks@ \the\@temptokena}%
-}
-\DeclareRobustCommand{\qed}{%
-  \ifmmode \mathqed
-  \else
-    \leavevmode\unskip\penalty9999 \hbox{}\nobreak\hfill
-    \quad\hbox{\qedsymbol}%
-  \fi
-}
-\let\QED@stack\@empty
-\let\qed@elt\relax
-\newcommand{\pushQED}[1]{%
-  \toks@{\qed@elt{#1}}\@temptokena\expandafter{\QED@stack}%
-  \xdef\QED@stack{\the\toks@\the\@temptokena}%
-}
-\newcommand{\popQED}{%
-  \begingroup\let\qed@elt\popQED@elt \QED@stack\relax\relax\endgroup
-}
-\def\popQED@elt#1#2\relax{#1\gdef\QED@stack{#2}}
-\newcommand{\qedhere}{%
-  \begingroup \let\mathqed\math@qedhere
-    \let\qed@elt\setQED@elt \QED@stack\relax\relax \endgroup
-}
-\newif\ifmeasuring@
-\newif\iffirstchoice@ \firstchoice@true
-\def\setQED@elt#1#2\relax{%
-  \ifmeasuring@
-  \else \iffirstchoice@ \gdef\QED@stack{\qed@elt{}#2}\fi
-  \fi
-  #1%
-}
-\def\qed@warning{%
-  \PackageWarning{amsthm}{The \@nx\qedhere command may not work
-    correctly here}%
-}
-\newcommand{\mathqed}{\quad\hbox{\qedsymbol}}
-\def\linebox@qed{\hfil\hbox{\qedsymbol}\hfilneg}
-\@ifpackageloaded{amsmath}{%
-  \def\math@qedhere{%
-    \@ifundefined{\@currenvir @qed}{%
-      \qed@warning\quad\hbox{\qedsymbol}%
-    }{%
-      \@xp\aftergroup\csname\@currenvir @qed\endcsname
-    }%
-  }
-  \def\displaymath@qed{%
-    \relax
-    \ifmmode
-      \ifinner \aftergroup\linebox@qed
-      \else
-        \eqno
-        \let\eqno\relax \let\leqno\relax \let\veqno\relax
-        \hbox{\qedsymbol}%
-      \fi
-    \else
-       \aftergroup\linebox@qed
-    \fi
-  }
-  \@xp\let\csname equation*@qed\endcsname\displaymath@qed
-  \def\equation@qed{%
-    \iftagsleft@
-      \hbox{\phantom{\quad\qedsymbol}}%
-      \gdef\alt@tag{%
-        \rlap{\hbox to\displaywidth{\hfil\qedsymbol}}%
-        \global\let\alt@tag\@empty
-      }%
-    \else
-      \gdef\alt@tag{%
-        \global\let\alt@tag\@empty
-        \vtop{\ialign{\hfil####\cr
-                \tagform@\theequation\cr
-                \qedsymbol\cr}}%
-        \setbox\z@
-      }%
-    \fi
-  }
-  \def\qed@tag{%
-    \global\tag@true \nonumber
-    &\omit\setboxz@h {\strut@ \qedsymbol}\tagsleft@false
-    \place@tag@gather
-    \kern-\tabskip
-    \ifst@rred \else \global\@eqnswtrue \fi \global\advance\row@\@ne \cr
-  }
-  \def\split@qed{%
-    \def\endsplit{\crcr\egroup \egroup \ctagsplit@false \rendsplit@
-      \aftergroup\align@qed
-    }%
-  }
-  \def\align@qed{%
-    \ifmeasuring@ \tag*{\qedsymbol}%
-    \else \let\math@cr@@@\qed@tag
-    \fi
-  }
-  \@xp\let\csname align*@qed\endcsname\align@qed
-  \@xp\let\csname gather*@qed\endcsname\align@qed
-%% Needs some patching up for amsmath 1.2
-}{% end of amsmath branch, start plain LaTeX branch
-  \def\math@qedhere{%
-    \@ifundefined{\@currenvir @qed}{%
-      \qed@warning \aftergroup\displaymath@qed
-    }{%
-      \@xp\aftergroup\csname\@currenvir @qed\endcsname
-    }%
-  }
-  \def\displaymath@qed{%
-    \relax
-    \ifmmode
-      \ifinner \aftergroup\aftergroup\aftergroup\linebox@qed
-      \else
-        \eqno \def\@badmath{$$}%
-        \let\eqno\relax \let\leqno\relax \let\veqno\relax
-        \hbox{\qedsymbol}%
-      \fi
-    \else
-       \aftergroup\linebox@qed
-    \fi
-  }
-  \@ifundefined{ver@leqno.clo}{%
-    \def\equation@qed{\displaymath@qed \quad}%
-  }{%
-    \def\equation@qed{\displaymath@qed}%
-  }
-  \def\@tempa#1$#2#3\@nil{%
-    \def\[{#1$#2\def\@currenvir{displaymath}#3}%
-  }%
-  \expandafter\@tempa\[\@nil
-}
-\@ifpackageloaded{amstex}{%
-  \def\@tempa{TT}%
-}{%
-  \@ifpackageloaded{amsmath}{%
-    \def\@tempb#1 v#2.#3\@nil{#2}%
-    \ifnum\@xp\@xp\@xp\@tempb\csname ver@amsmath.sty\endcsname v0.0\@nil
-       <\tw@
-      \def\@tempa{TT}%
-    \else
-      \def\@tempa{TF}%
-    \fi
-  }{%
-    \def\@tempa{TF}
-  }%
-}
-\if\@tempa
-  \renewcommand{\math@qedhere}{\quad\hbox{\qedsymbol}}%
-\fi
-\newcommand{\openbox}{\leavevmode
-  \hbox to.77778em{%
-  \hfil\vrule
-  \vbox to.675em{\hrule width.6em\vfil\hrule}%
-  \vrule\hfil}}
-\DeclareRobustCommand{\textsquare}{%
-  \begingroup \usefont{U}{msa}{m}{n}\thr@@\endgroup
-}
-\@ifclasswith{\@classname}{noamsfonts}{%
-  \providecommand{\qedsymbol}{\openbox}%
-}{}
-\providecommand{\qedsymbol}{\textsquare}
-\newenvironment{proof}[1][\proofname]{\par
-  \pushQED{\qed}%
-  \normalfont \topsep6\p@\@plus6\p@\relax
-  \trivlist
-  \itemindent\normalparindent
-  \item[\hskip\labelsep
-        \scshape
-    #1\@addpunct{.}]\ignorespaces
-}{%
-  \popQED\endtrivlist\@endpefalse
-}
-\providecommand{\proofname}{Proof}
-\def\bb@skip#1{%
-  \skip@#1\relax \advance\skip@-\prevdepth \advance\skip@-\baselineskip
-  \vskip\skip@}
-\def\markleft#1{{\let\protect\noexpand
-    \let\label\relax \let\index\relax \let\glossary\relax
-    \expandafter\@markleft\@themark{#1}%
-    \mark{\@themark}}%
-  \if@nobreak\ifvmode\nobreak\fi\fi}
-\def\@markleft#1#2#3{\gdef\@themark{{#3}{#2}}}
-\def\@tempa{}
-\edef\@dh{%
-  \noexpand\mathhexbox{\hexnumber@\symAMSb}67}
-\DeclareTextCommand{\dh}{OT1}{%
-  \edef\@tempb{\scdefault}%
-  \ifx\f@shape\@tempb
-    \leavevmode
-    \raisebox{-.8ex}{\makebox[\z@][l]{\hskip-.08em\accent"16\hss}}d%
-  \else
-    \@dh
-  \fi
-}
-\DeclareTextCommand{\DH}{OT1}{%
-  \leavevmode\raisebox{-.5ex}{\makebox[\z@][l]{\hskip-.07em\accent"16\hss}}D}
-\DeclareTextCommand{\DJ}{OT1}{%
-  \leavevmode\raisebox{-.5ex}{\makebox[\z@][l]{\hskip-.07em\accent"16\hss}}D}
-\DeclareTextCommand{\dj}{OT1}{%
-  \edef\@tempa{\f@shape}\edef\@tempb{\scdefault}%
-  \ifx\@tempa\@tempb
-    \leavevmode
-    \raisebox{-.75ex}{\makebox[\z@][l]{\hskip-.08em\accent"16\hss}}d%
-  \else
-    \leavevmode\raisebox{.02ex}{\makebox[\z@][l]{\hskip.1em\accent"16\hss}}d%
-  \fi}
-\hyphenation{acad-e-my acad-e-mies af-ter-thought anom-aly anom-alies
-an-ti-deriv-a-tive an-tin-o-my an-tin-o-mies apoth-e-o-ses
-apoth-e-o-sis ap-pen-dix ar-che-typ-al as-sign-a-ble as-sist-ant-ship
-as-ymp-tot-ic asyn-chro-nous at-trib-uted at-trib-ut-able bank-rupt
-bank-rupt-cy bi-dif-fer-en-tial blue-print busier busiest
-cat-a-stroph-ic cat-a-stroph-i-cally con-gress cross-hatched data-base
-de-fin-i-tive de-riv-a-tive dis-trib-ute dri-ver dri-vers eco-nom-ics
-econ-o-mist elit-ist equi-vari-ant ex-quis-ite ex-tra-or-di-nary
-flow-chart for-mi-da-ble forth-right friv-o-lous ge-o-des-ic
-ge-o-det-ic geo-met-ric griev-ance griev-ous griev-ous-ly
-hexa-dec-i-mal ho-lo-no-my ho-mo-thetic ideals idio-syn-crasy
-in-fin-ite-ly in-fin-i-tes-i-mal ir-rev-o-ca-ble key-stroke
-lam-en-ta-ble light-weight mal-a-prop-ism man-u-script mar-gin-al
-meta-bol-ic me-tab-o-lism meta-lan-guage me-trop-o-lis
-met-ro-pol-i-tan mi-nut-est mol-e-cule mono-chrome mono-pole
-mo-nop-oly mono-spline mo-not-o-nous mul-ti-fac-eted mul-ti-plic-able
-non-euclid-ean non-iso-mor-phic non-smooth par-a-digm par-a-bol-ic
-pa-rab-o-loid pa-ram-e-trize para-mount pen-ta-gon phe-nom-e-non
-post-script pre-am-ble pro-ce-dur-al pro-hib-i-tive pro-hib-i-tive-ly
-pseu-do-dif-fer-en-tial pseu-do-fi-nite pseu-do-nym qua-drat-ic
-quad-ra-ture qua-si-smooth qua-si-sta-tion-ary qua-si-tri-an-gu-lar
-quin-tes-sence quin-tes-sen-tial re-arrange-ment rec-tan-gle
-ret-ri-bu-tion retro-fit retro-fit-ted right-eous right-eous-ness
-ro-bot ro-bot-ics sched-ul-ing se-mes-ter semi-def-i-nite
-semi-ho-mo-thet-ic set-up se-vere-ly side-step sov-er-eign spe-cious
-spher-oid spher-oid-al star-tling star-tling-ly sta-tis-tics
-sto-chas-tic straight-est strange-ness strat-a-gem strong-hold
-sum-ma-ble symp-to-matic syn-chro-nous topo-graph-i-cal tra-vers-a-ble
-tra-ver-sal tra-ver-sals treach-ery turn-around un-at-tached
-un-err-ing-ly white-space wide-spread wing-spread wretch-ed
-wretch-ed-ly Eng-lish Euler-ian Feb-ru-ary Gauss-ian
-Hamil-ton-ian Her-mit-ian Jan-u-ary Japan-ese Kor-te-weg
-Le-gendre Mar-kov-ian Noe-ther-ian No-vem-ber Rie-mann-ian Sep-tem-ber}
-\def\calclayout{\advance\textheight -\headheight
-  \advance\textheight -\headsep
-  \oddsidemargin\paperwidth
-  \advance\oddsidemargin -\textwidth
-  \divide\oddsidemargin\tw@
-  \ifdim\oddsidemargin<.5truein \oddsidemargin.5truein \fi
-  \advance\oddsidemargin -1truein
-  \evensidemargin\oddsidemargin
-  \topmargin\paperheight \advance\topmargin -\textheight
-  \advance\topmargin -\headheight \advance\topmargin -\headsep
-  \divide\topmargin\tw@
-  \ifdim\topmargin<.5truein \topmargin.5truein \fi
-  \advance\topmargin -1truein\relax
-}
-\InputIfFileExists{amsproc.cfg}{}{%
-  \calclayout % initialize
-  \pagenumbering{arabic}%
-  \pagestyle{headings}%
-  \thispagestyle{plain}%
-}
-\if@compatibility \else\endinput\fi
-\def\tiny{\Tiny}
-\def\defaultfont{\normalfont}
-\def\rom{\textup}
-\let\@newpf\proof \let\proof\relax \let\endproof\relax
-\newenvironment{pf}{\@newpf[\proofname]}{\popQED\endtrivlist}
-\newenvironment{pf*}[1]{\@newpf[#1]}{\popQED\endtrivlist}
-\endinput
-%%
-%% End of file `amsproc.cls'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/amsrbeta.sty b/Master/texmf-dist/tex/latex/amslatex/amsrbeta.sty
deleted file mode 100644
index 6dba64291d8..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/amsrbeta.sty
+++ /dev/null
@@ -1,901 +0,0 @@
-%%
-%% This is file `amsrefs.sty',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsrefs.dtx  (with options: `pkg')
-%% 
-%%% ====================================================================
-%%% @LaTeX-doc-source-file{
-%%%   filename  = "amsrefs.dtx",
-%%%   version   = "1.01",
-%%%   date      = "2000/04/07",
-%%%   time      = "14:13:41 EDT",
-%%%   author    = "Michael J Downes",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support@ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "A LaTeX package that permits bibliography style
-%%%                to be controlled completely from the LaTeX side
-%%%                instead of being determined chiefly by the BibTeX
-%%%                style file.",
-%%%   checksum  = "13215 2240 8648 73862",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}[1995/12/01]
-%\ProvidesPackage{amsrefs}[2000/04/07 v1.03]
-\ProvidesPackage{amsrbeta}[2000/04/07 v1.03]
-\begingroup
-\edef\c{\number\catcode\string`\`}
-\catcode\string`\`=12
-\edef\c{%
-  \endgroup
-  \noexpand\AtEndOfPackage{%
-    \catcode\number`\==\number\catcode`\=
-    \catcode\number`\:=\number\catcode`\:
-    \catcode\number`\`=\c\relax
-  }%
-  \catcode\number`\`=12
-}
-\c \catcode`\'12 \catcode`\=12 \catcode`\:12
-\let\@xp=\expandafter
-\let\@nx=\noexpand
-\long\def\@ifempty#1{\@xifempty#1@@..\@nil}
-\long\def\@xifempty#1#2@#3#4#5\@nil{%
-  \ifx#3#4\@xp\@firstoftwo\else\@xp\@secondoftwo\fi}
-\long\def\@ifnotempty#1{\@ifempty{#1}{}}
-\@ifundefined{@emptytoks}{\csname newtoks\endcsname\@emptytoks}{}
-\def\addto@macro#1#2{\@xp\def\@xp#1\@xp{#1#2}}
-\let\star@char=*
-\def\star@#1#2{%
-  \def\star@a##1{#1}\def\star@b{#1{#2}}%
-  \futurelet\@let@token\star@test
-}
-\def\star@test{%
-  \ifx\@let@token\star@char \let\star@b\star@a\fi
-  \star@b
-}
-\RequirePackage{ifoption}[2000/02/15]
-\DeclareExclusiveOptions{*sorted,*citation-order}
-\DeclareExclusiveOptions{alphabetic,author-year,numeric}
-\DeclareBooleanOption{short-journals}
-\DeclareBooleanOption{short-months}
-\DeclareBooleanOption{initials}
-\DeclareExclusiveOptions{traditional-quotes,logical-quotes}
-\DeclareExclusiveOptions{sorted-cites,non-sorted-cites}
-\DeclareExclusiveOptions{non-compressed-cites,compressed-cites}
-\DeclareBooleanOption{jpa}
-\DeclareBooleanOption{backrefs}
-\def\amsrefs@verbose{01}
-\DeclareOption{?}{\def\amsrefs@verbose{00}}
-\DeclareOption{beta}{}
-\ExecuteOptions{numeric,*sorted,traditional-quotes,%
-  sorted-cites,compressed-cites}
-\ProcessOptions\relax
-\ProcessExclusiveOptions
-\IfOption{beta}{}{%
-  \PackageWarningNoLine{amsrefs}{%
-    Option `beta' should be used with this beta release}%
-}
-%\RequirePackage{rkeyval}[2000/02/02]
-\RequirePackage{rkvbeta}[2000/02/02]
-\RequirePackage{inicap}[2000/02/02]
-\newenvironment{biblist}[1][]{%
-  \normalfont \footnotesize \labelsep .5em\relax
-  \list{\@biblabel{\thebib}}{%
-    \resetbiblist{00}%
-    \usecounter{bib}}%
-    \sloppy
-  \interlinepenalty\@m  \clubpenalty\@M \widowpenalty\clubpenalty
-  \frenchspacing
-  #1\relax
-}{%
-  \def\@noitemerr{\@latex@warning{Empty bibliography list}}%
-  \endlist
-}
-\def\@biblabel#1{[#1]}
-\newcommand{\resetbiblist}[1]{%
-  \settowidth\labelwidth{\@biblabel{#1}}%
-  \leftmargin\labelwidth \advance\leftmargin\labelsep
-}
-\def\bib@start#1{%
-  \begingroup
-  \let\@elt\relax % work around a LaTeX output routine bug
-  \item\leavevmode
-}
-\def\bib@end{\relax
-  \par\endgroup
-}
-\providecommand{\name}{}
-\DefineAdditiveKey{bib}{author}{\name}
-\DefineAdditiveKey{bib}{editor}{\name}
-\DefineSimpleKey{bib}{title}
-\DefineSimpleKey{bib}{subtitle}
-\DefineSimpleKey{bib}{booktitle}
-\DefineSimpleKey{bib}{series}
-\DefineSimpleKey{bib}{conference}
-\DefineSimpleKey{bib}{publisher}
-\DefineSimpleKey{bib}{organization}
-\DefineSimpleKey{bib}{institution}
-\DefineSimpleKey{bib}{address}
-\DefineSimpleKey{bib}{place}
-\DefineSimpleKey{bib}{year}
-\DefineSimpleKey{bib}{date}
-\DefineSimpleKey{bib}{journal}
-\DefineSimpleKey{bib}{volume}
-\DefineSimpleKey{bib}{number}
-\DefineSimpleKey{bib}{pages}
-\DefineSimpleKey{bib}{part}
-\DefineAdditiveKey{bib}{isbn}{\isbn}
-\DefineSimpleKey{bib}{issn}
-\DefineSimpleKey{bib}{doi}
-\DefineAdditiveKey{bib}{review}{\review}
-\DefineSimpleKey{bib}{status}
-\DefineSimpleKey{bib}{eprint}
-\DefineSimpleKey{bib}{preprint}
-\DefineSimpleKey{bib}{language}
-\DefineSimpleKey{bib}{note}
-\DefineSimpleKey{bib}{xid}
-\DefineSimpleKey{bib}{label}
-\DefineSimpleKey{bib}{type}
-\DefineSimpleKey{bib}{edition}
-\DefineSimpleKey{bib}{setup}
-\DefineDummyKey{bib}{transition}
-\newcommand{\bib}[3][]{%
-  \begingroup
-  \toks@{#1}%
-  \def\@tempa{#2}%
-  \edef\@tempb{%
-    \@nx\@bibdef\@xp\@nx\csname setbib@#3\endcsname{\the\toks@}{#3}%
-      {\@xp\strip@prefix\meaning\@tempa}%
-  }%
-  \@tempb
-}
-\let\biblio@list\@empty
-\newcounter{bib}
-\def\amsrefs@nocomma{\PackageWarning{amsrefs}{%
-  Missing comma: some text might print incorrectly\MessageBreak}}
-\def\@bibdef#1#2#3#4{%
-  \ifx\relax#1%
-    \PackageError{amsrefs}{Undefined entry type: #3}\@ehc
-    \let#1\setbib@misc
-  \fi
-  \RestrictedSetKeys[\amsrefs@nocomma]{bib}%
-    {\bib@exec{#4}{\the\rsk@toks}{#1}{#2}\endgroup}%
-}
-\begingroup \catcode`\'=11
-\gdef\bib@field@patches{%
-  \let\bib@author\bib'author
-  \let\bib@editor\bib'editor
-  \let\bib@date\bib'date
-  \ifx\bib@date\@empty \let\bib@date\bib'year \fi
-  \bib@parsedate
-  \let\bib@language\bib'language
-  \ifx\bib@language\@empty \let\bib@language\biblanguagedefault \fi
-  \ifx\bib'place\@empty \let\bib'place\bib'address\fi
-  \bib'setup
-}
-\endgroup
-\def\bib@bibcite#1#2#3{%
-  \@cons\biblio@list{{#1}}%
-  \if\numeric@refs
-    \stepcounter{bib}%
-    \protected@edef\@currentlabel{\@nx\@nx\@nx\cite@x{\thebib}{}}%
-  \else
-    #2% execute definitions locally
-    \bib@field@patches
-    \def\@currentlabel{\@nx\cite@x{\bib@year}{\bib@author}}%
-    \let\name\relax
-  \fi
-  \protected@edef\@tempa{\protect\bibcite{#1}{\@currentlabel}}%
-  \@tempa
-}
-\def\bib@print#1#2#3#4{%
-  \alpha@label{#4}%
-  \bib@start{#1}%
-  #2\bib@field@patches
-  \bib@cite{#1}\kern\@ne sp\relax
-  #3%
-  \bib@end
-}
-\let\bib@exec\bib@bibcite
-\AtBeginDocument{\let\bib@exec\bib@print}
-\IfOption{author-year}{%
-  \def\cite@label{%
-    \ifx\bib@author\@empty \bib@editor \else \bib@author \fi
-  }%
-}{%
-  \def\cite@label{\@currentlabel}%
-}
-
-\IfOption{alphabetic}{%
-  \def\alpha@label{\def\thebib}%
-}{%
-  \let\alpha@label\@gobble
-}
-\def\bib@cite@check#1#2#3#4#5#6\@nil#7{%
-  \ifodd0#2\relax
-    \PackageWarning{amsrefs}{%
-      Duplicate use of \protect\bib\space key `#7'\MessageBreak}%
-  \else
-    \@xp\gdef\csname b@#7\endcsname{\citeselect #11{#3}{#4}{#5}}%
-  \fi
-}
-\def\bib@cite#1{%
-  \protected@write\@auxout {\def\name{\protect\name}}{%
-    \protect\bibcite{#1}{%
-      \protect\citeselect 00{\cite@label}{\bib@year}{}}%
-  }%
-  \@ifundefined{b@#1}{%
-    \protected@edef\@tempa{%
-      \gdef\@xp\@nx\csname b@#1\endcsname{%
-        \protect\citeselect  01{\cite@label}{\bib@year}%
-      }%
-    }
-    \@tempa
-  }{%
-    \begingroup
-    \let\citeselect\bib@cite@check
-    \csname b@#1\endcsname 00xxx\@nil{#1}%
-    \endgroup
-  }%
-}
-\let\@@testdef\@testdef
-\def\@testdef #1{%
-  \if b\@car#1x\@nil \@xp\test@bibcite
-  \else \@xp\@@testdef
-  \fi
-  {#1}%
-}
-\def\test@bibcite#1#2#3{%
-  \@xp\@xp\@xp\test@bibcite@a\csname b@#2\endcsname #3\@nil
-}
-\def\test@bibcite@a#1#2#3#4\citeselect#5#6#7\@nil{%
-  \def\reserved@a{#4}\def\reserved@b{#7}%
-  \ifx\reserved@a\reserved@b \else\@tempswatrue \fi
-}
-\def\printbibliography{%
-  \bibsection
-  \begin{biblist}%
-  \let\@elt\bib@print
-  \biblio@list
-  \end{biblist}%
-}
-\renewenvironment{thebibliography}[1]{%
-  \bibsection
-  \biblist[\resetbiblist{#1}]%
-}{%
-  \endbiblist
-}
-\providecommand{\bibname}{Bibliography}
-\@ifundefined{chapter}{%
-  \newcommand{\bibsection}{\section*{\bibname}}%
-}{%
-  \newcommand{\bibsection}{\chapter*{\bibname}}%
-}
-\def\SwapBreak#1{%
-  \@tempcnta\@MM
-  \ifhmode
-    \unskip
-    \ifnum\lastpenalty=\z@
-    \else \@tempcnta\lastpenalty \unpenalty
-    \fi
-  \fi
-  \toks@{#1}%
-  \edef\@tempa{%
-    \@nx\deferredquoteslogical
-    \ifnum\lastkern=\@ne
-    \else
-      \ifnum\spacefactor=\sfcode\@xp\@xp\@xp`\@xp\@car\string#1)\@nil
-      \else \the\toks@
-      \fi
-    \fi
-    \@nx\deferredquotes
-    \ifnum\@tempcnta=\@MM \else \penalty\number\@tempcnta\space\fi
-    \ifnum\lastkern=\@ne \ignorespaces \fi
-  }%
-  \@tempa
-}
-\newcount\series@index
-\def\PrintSeries#1#2#3#4#5#6#7#8{%
-  \begingroup
-  \def\series@add@a{#2}%
-  \def\series@add@b{\SwapBreak{#3}#4}%
-  \def\series@add@c{\SwapBreak{#5}#6}%
-  \def\series@add@d{\SwapBreak{#7}#8}%
-  \PrintSeries@a{#1}%
-}
-\newcommand{\SingularPlural}[2]{#1}
-\newcommand{\Plural}{\SingularPlural{}}
-\def\PrintSeries@a#1#2#3#4{%
-  \series@index\z@ \def#1{\advance\series@index\@ne \@gobble}%
-  #3\relax
-  \ifnum\series@index=\@ne \let\SingularPlural\@firstoftwo
-  \else \let\SingularPlural\@secondoftwo
-  \fi
-  \chardef\series@total=\series@index \series@index=\z@
-  \let#1\series@add
-  #2#3#4\relax
-  \endgroup
-}
-\def\series@add#1{%
-  \advance\series@index\@ne
-  \let\@tempa\relax
-  \ifcase\series@index
-  \or % material before name 1
-    \let\@tempa\series@add@a
-  \or % material before name 2
-    \ifnum\series@total<\thr@@ \let\@tempa\series@add@b
-    \else \let\@tempa\series@add@c
-    \fi
-  \else % material before name 3, 4, 5, ...
-    \ifnum\series@index<\series@total \let\@tempa\series@add@c
-    \else \let\@tempa\series@add@d
-    \fi
-  \fi
-  \@tempa{#1}%
-}
-\def\bib@append#1#2#3{%
-  \ifx\@empty#3\relax
-  \else
-    \ifx\relax#2\errmessage{#3=\relax}\fi
-    \@temptokena{\SwapBreak{#1}#2}\toks@\@xp{#3}%
-    \edef\@tempa{\the\@temptokena{\the\toks@}}%
-    \@xp\@tempa
-  \fi
-  \relax
-}
-\let\endbracket\@empty
-\let\bracket@stack\@empty
-\def\push@bracket#1{%
-  \xdef\bracket@stack{#1\bracket@stack}%
-}
-\def\pop@bracket{\iffalse{\fi
-  \@xp\pop@bracket@a\bracket@stack \@empty}}
-\def\pop@bracket@a#1{\leavevmode\/\upn{#1}\xdef\bracket@stack{\iffalse}\fi}
-\providecommand{\upn}[1]{#1}
-\newcommand{\parenthesize}[1]{%
-  \leavevmode\push@bracket)\upn{(}#1\pop@bracket
-}
-\let\deferredquotes\@empty
-\IfOption{logical-quotes}{%
-  \def\deferredquoteslogical{\deferredquotes}%
-}{%
-  \let\deferredquoteslogical\relax
-}
-\newcommand{\bibquotes}[1]{%
-  \textquotedblleft#1%
-  \gdef\deferredquotes{%
-    \global\let\deferredquotes\@empty \textquotedblright
-  }%
-}
-\providecommand{\mdash}{\textemdash}
-\providecommand{\ndash}{\textendash}
-\providecommand{\MRhref}[1]{}
-\@ifundefined{@addpunct}{%
-  \def\@addpunct#1{%
-    \relax\ifhmode\unskip\ifnum\spacefactor>\@m \else#1\fi\fi
-  }
-  \def\frenchspacing{\sfcode`\.1006\sfcode`\?1005\sfcode`\!1004%
-    \sfcode`\:1003\sfcode`\;1002\sfcode`\,1001 }
-}{}
-\providecommand{\nopunct}{\spacefactor 1005 }
-\def\bibspec@scan#1#2#3#4{%
-  \toks@\@xp{\the\toks@\bib@append{#1}{#2}}%
-  \edef\@tempa{%
-    \toks@{\the\toks@ \@xp\@nx\csname bib'#3\endcsname}%
-  }%
-  \@tempa
-  \ifx\@empty#4\@xp\@gobble % end the recursion
-  \else \ifx +#4\else\bibspec@scan@error\fi
-  \fi
-  \bibspec@scan
-}
-\newcommand{\bibspec}[2]{%
-  \toks@\@emptytoks
-  \@ifnextchar{+}{\@xp\bibspec@scan\@gobble}{\bibspec@scan}#2%
-    \@empty\@empty\@empty\@empty
-  \@xp\edef\csname setbib@#1\endcsname{\the\toks@}%
-}
-\IfOption{initials}{%
-  \def\set@forenames#1#2 #3{%
-    \ignorespaces#1. \ifx\@empty#3\@xp\@gobbletwo\fi \set@forenames#3%
-  }
-}{%
-  \def\set@forenames{\ignorespaces}
-}
-\def\uninvertName#1{\rnscan@a#1,,,\@nil}
-\def\rnscan@a#1,#2,#3,#4\@nil{%
-  \set@forenames#2 \@empty#1\unskip
-  \@ifnotempty{#3}{, \ignorespaces #3}}
-\def\UninvertedNames{%
-  \PrintSeries{\name}%
-    {\uninvertName}%
-    {}{ and \uninvertName}%
-    {,}{ \uninvertName}%
-    {,}{ and \uninvertName}%
-}
-\newcommand{\aulist}[1]{\UninvertedNames{}{#1}{}}
-\providecommand{\bysame}{\leavevmode\hbox to3em{\hrulefill}\thinspace}
-\newcommand{\sameauthors}[1]{\bysame}
-\def\PreviousAuthors{\relax}
-\newcommand{\PrintAuthors}{%
-  \ifx\PreviousAuthors\bib@author \@xp\sameauthors
-  \else
-    \global\let\PreviousAuthors\bib@author
-    \@xp\aulist
-  \fi
-}
-\newcommand{\PrintEditorsA}[1]{%
-  \UninvertedNames{}{#1}{ (ed\Plural{s}.)}%
-}
-\newcommand{\PrintEditorsB}[1]{%
-  \UninvertedNames{(}{#1}{\SwapBreak{,} ed\Plural{s}.)}%
-}
-\newcommand{\ReviewList}[1]{%
-  \PrintSeries{\review}{}{,}{ }{,}{ }{,}{ }{}{#1}{}%
-}
-\newcommand{\voltext}{vol.~}
-\newcommand{\pptext}[1]{%
-  p\pp@scan@a#1@\ndash p@\ndash{\pp@scan#1@-p@-{}\@nil}\@nil.~#1%
-}
-\def\pp@scan#1-#2@-#3#4\@nil{#3}
-\def\pp@scan@a#1\ndash#2@\ndash#3#4\@nil{#3}
-\newcommand{\eprintpages}[1]{%
-  #1\IfEmptyBibField{eprint}{}{\IfEmptyBibField{journal}{ pp.}{}}%
-}
-\def\ISSNlookup#1{%
-  \@ifnotempty{#1}{%
-    \ISSN@lu#1\@nil{#1}%
-  }%
-}
-\def\ISSN@lu#1#2\@nil#3{%
-  \def\@tempa{#3}%
-  \ifcat A\@nx#1%
-    \lowercase{\if#1}#1%
-        \def\@tempb##1<#3>##2##3\@nil{\def\@tempc{##2}}%
-      \@xp\@tempb\ISSN@list<#3>{}\@nil
-      \ifx\@tempc\@empty \arf@unknown{journal}{#3}%
-      \else \let\@tempa\@tempc
-      \fi
-    \fi
-  \fi
-  \@tempa
-}
-\def\arf@unknown#1#2{%
-  \toks@{#2}%
-  \PackageWarning{amsrefs}{Unknown #1 abbreviation '\the\toks@'}%
-}
-\def\PublisherLookup#1{\Publ@LU#1?\@nil{#1}}
-\def\Publ@LU#1#2\@nil#3{%
-  \ifcat A\@nx#1%
-    \lowercase{\if#1}#1%
-      \lowercase{\uppercase{\csname PN}.#3}\endcsname
-    \else
-      #3%
-    \fi
-  \fi
-}
-\def\biblanguageEnglish{English}
-\let\biblanguagedefault\biblanguageEnglish
-\edef\amsrefs@tmp{\catcode\number`\'=\number\catcode`\'\relax}
-\catcode`\'=11
-\newcommand{\EnglishInitialCaps}[1]{%
-  \ifx\@empty\bib'language \let\bib'language\biblanguagedefault\fi
-  \ifx\bib'language\biblanguageEnglish \inicap{#1}\fi
-}
-\amsrefs@tmp
-\def\PrintThesisType#1{%
-  \thesis@type#1?\@nil{#1}%
-}
-\def\thesis@type#1#2\@nil#3{%
-  \ifx p#1Ph.D. Thesis%
-  \else\ifx m#1Master's Thesis%
-  \else #3\fi\fi
-}
-\newcommand{\BibField}[1]{\csname bib'#1\endcsname}
-\newcommand{\IfEmptyBibField}{\rkvIfEmpty{bib}}
-\newcommand{\PrintDOI}[1]{%
-  DOI #1%
-  \IfEmptyBibField{volume}{, (to appear in print)}{}%
-}
-\def\bib@parsedate{%
-  \@xp\bib@parsedate@a\bib@date ---\@nil
-}
-\let\bib@year\@empty
-\let\bib@month\@empty
-\let\bib@day\@empty
-\begingroup \catcode`\'=11
-\gdef\bib@parsedate@a#1-#2-#3-#4\@nil{%
-  \def\bib@year{#1}\def\bib@month{#2}\def\bib@day{#3}%
-  \ifx\@empty\bib@month \let\bib'date\bib@year
-  \else \def\bib'date{#1-#2-#3}%
-  \fi
-}
-\endgroup
-\newcommand{\PrintDatePV}[1]{%
-  \IfEmptyBibField{doi}{\let\@tempa\PrintDate}{%
-    \IfEmptyBibField{volume}{\let\@tempa\PrintDatePosted}{%
-      \let\@tempa\PrintDate}}%
-  \@tempa{#1}%
-}
-\newcommand{\PrintDate}[1]{(\print@date)}
-\def\print@date{%
-  \ifx\bib@month\@empty \else\print@month@day \fi
-  \bib@year
-}
-\def\print@month@day{%
-  \ifcase 0\bib@month\ignorespaces
-  \or January\or February\or March\or April\or May\or June\or
-      July\or August\or September\or October\or November\or December\or
-      Winter\or Spring\or Summer\or Fall\else Unknown Month%
-  \fi
-  \ifx\@empty\bib@day \else \space\number 0\bib@day,\fi
-  \space
-}
-\newcommand{\PrintYear}[1]{\bib@year}
-\newcommand{\PrintDatePosted}[1]{\unskip,  posted on \print@date}
-\newcommand{\CardinalNumeric}[1]{%
-  \number#1\relax
-  \if\ifnum#1<14 \ifnum#1>\thr@@ T\else F\fi\else F\fi T%
-    th%
-  \else
-    \@xp\keep@last@digit\@xp#1\number#1\relax
-    \ifcase#1th\or st\or nd\or rd\else th\fi
-  \fi
-}
-\def\keep@last@digit#1#2{%
-  \ifx\relax#2\@xp\@gobbletwo
-  \else #1=#2\relax
-  \fi
-  \keep@last@digit#1%
-}
-\newcommand{\PrintEdition}[1]{%
-  \afterassignment\print@edition
-  \count@ 0#1\relax\@nil
-}
-\newcommand{\editiontext}{ed.}
-\def\print@edition#1#2\@nil{%
-  \ifx\relax#1\relax
-    \ifnum\count@>\z@ \CardinalNumeric\count@
-    \else ??th%
-    \fi
-    \ \editiontext
-  \else \ifnum\count@>\z@\number\count@\fi #1#2\relax
-  \fi
-}
-\newcommand{\intersentencespace}{{\spacefactor3000} }
-\newcommand{\eprint}[1]{#1}
-\bibspec{article}{%
-  +{}{\PrintAuthors}       {author}
-  +{,}{ \textit}      {title}
-  +{:}{ \textit}      {subtitle}
-  +{.}{ }             {part}
-  +{,}{ \ISSNlookup}  {journal}
-  +{} { \textbf}      {volume}
-  +{} { \PrintDatePV} {date}
-  +{,}{ \PrintDOI}    {doi}
-  +{,}{ \eprint}      {eprint}
-  +{} { \parenthesize}{status}
-  +{,}{ \eprintpages} {pages}
-  +{,}{ }             {note}
-  +{.}{}              {transition}
-  +{} {\intersentencespace \ReviewList}   {review}
-}
-\bibspec{book}{%
-  +{}{\PrintAuthors}{author}
-  +{}{\PrintEditorsA}{editor}
-  +{,}{ \textit}{title}
-  +{:}{ \textit}{subtitle}
-  +{,}{ }{type}
-  +{,}{ \EnglishInitialCaps}{booktitle}
-  +{,}{ \PrintEdition}{edition}
-  +{,}{ }{series}
-  +{,}{ vol.~}{volume}
-  +{,}{ part~}{part}
-  +{,}{ \PublisherLookup}{publisher}
-  +{,}{ }{organization}
-  +{,}{ }{place}
-  +{,}{ }{date}
-  +{,}{ ISBN }{isbn}
-  +{}{ \parenthesize}{status}
-  +{,}{ }{note}
-  +{.}{}{transition}
-  +{}{\intersentencespace \ReviewList}{review}
-}
-\bibspec{incollection}{%
-  +{}{\PrintAuthors}{author}
-  +{,}{ \textit}{title}
-  +{:}{ \textit}{subtitle}
-  +{,}{ }{type}
-  +{,}{ \EnglishInitialCaps}{booktitle}
-  +{,}{ \PrintEdition}{edition}
-  +{}{ \PrintEditorsB}{editor}
-  +{,}{ Proc.\ }{conference}
-  +{,}{ }{series}
-  +{,}{ vol.~}{volume}
-  +{,}{ part~}{part}
-  +{,}{ \PublisherLookup}{publisher}
-  +{,}{ }{organization}
-  +{,}{ }{place}
-  +{,}{ }{date}
-  +{,}{ \pptext}{pages}
-  +{,}{ ISBN }{isbn}
-  +{}{ \parenthesize}{status}
-  +{,}{ }{note}
-  +{.}{}{transition}
-  +{}{\intersentencespace \ReviewList}{review}
-}
-\let\setbib@inproceedings\setbib@incollection
-\let\setbib@booktitle\setbib@incollection
-\let\setbib@misc\setbib@book
-\let\setbib@unpublished\setbib@book
-\bibspec{techreport}{%
-  +{}{\PrintAuthors}{author}
-  +{}{\PrintEditorsA}{editor}
-  +{,}{ \textit}{title}
-  +{:}{ \textit}{subtitle}
-  +{,}{ }{type}
-  +{,}{ \EnglishInitialCaps}{booktitle}
-  +{,}{ Technical Report }{number}
-  +{,}{ }{series}
-  +{,}{ vol.~}{volume}
-  +{,}{ part~}{part}
-  +{,}{ \PublisherLookup}{publisher}
-  +{,}{ }{organization}
-  +{,}{ }{institution}
-  +{,}{ }{place}
-  +{,}{ }{date}
-  +{,}{ ISBN }{isbn}
-  +{,}{ \eprint}      {eprint}
-  +{}{ \parenthesize}{status}
-  +{,}{ }{note}
-  +{.}{}{transition}
-  +{}{\intersentencespace \ReviewList}{review}
-}
-\bibspec{thesis}{%
-  +{}{\PrintAuthors}{author}
-  +{}{\PrintEditorsA}{editor}
-  +{,}{ \textit}{title}
-  +{:}{ \textit}{subtitle}
-  +{,}{ \PrintThesisType}{type}
-  +{,}{ part~}{part}
-  +{,}{ }{organization}
-  +{,}{ }{institution}
-  +{,}{ }{place}
-  +{,}{ }{date}
-  +{}{ \parenthesize}{status}
-  +{,}{ }{note}
-  +{.}{}{transition}
-  +{}{\intersentencespace \ReviewList}{review}
-}
-\DeclareRobustCommand{\tsup}[1]{%
-  \leavevmode\raise.9ex\hbox{\fontsize\sf@size\z@\selectfont #1}%
-}
-\DeclareRobustCommand{\tsub}[1]{%
-  \leavevmode\lower.6ex\hbox{\fontsize\sf@size\z@\selectfont #1}%
-}
-\DeclareRobustCommand{\tprime}{\tsup{\usefont{OMS}{cmsy}{m}{n}\char48 }}
-\def\citeleft{[}
-\def\citeright{]}
-\def\citemid{,\penalty9999 \space}
-\def\citepunct{,\penalty9999 \hskip.13em plus.1em minus.05em\relax}
-\let\citeform\@iden
-\def\@citeleft{\citeleft}
-\def\citeselect@author#1#2#3#4#5{\UninvertedNames{#3}}
-\def\citeselect@authoryear#1#2#3#4#5{\UninvertedNames{#3}, #4}
-\def\citeselect@object#1#2#3#4#5{\UninvertedNames{#3} \citeleft#4}
-\def\citeselect@year#1#2#3#4#5{#4}
-\def\citeselect@key#1#2#3#4#5{#3}
-\let\citeselect\citeselect@key
-\DeclareRobustCommand{\cite}[1]{\star@{\cite@a\citeselect{#1}}{}}
-\def\cite@multiple#1,#2#3\@nil{\ifx\relax#2F\else T\fi T}
-\def\MultipleCiteKeyWarning#1{%
-  \PackageWarning{amsrefs}{%
-    Use of \string\cites\space is recommended\MessageBreak
-    instead of \string\cite\space for multiple cites '#1'}%
-  \global\let\MultipleCiteKeyWarning\@gobble
-}
-\def\cite@a#1#2{%
-  \begingroup
-  \def\@tempa{#2}%
-  \toks@{\endgroup \cite@b#1}%
-  \edef\@tempa{\the\toks@{\@xp\strip@prefix\meaning\@tempa}}%
-  \@tempa
-}
-\def\cite@b#1#2#3{%
-  \if\cite@multiple#2,\relax\@nil
-    \MultipleCiteKeyWarning{#2}%
-    \cites{#2}%
-  \else
-    \cite@c#1{#2}{#3}%
-  \fi
-}
-\@ifundefined{@extra@b@citeb}{\let\@extra@b@citeb\@empty}{}
-\def\cite@lookup#1{\csname b@#1\@extra@b@citeb\endcsname}
-\def\undefined@cite#1{%
-  \PackageWarning{amsrefs}{Undefined citation '#1'}%
-  \texttt{#1}}
-\newcommand{\citedest}[2]{}
-\def\cite@c#1#2#3{%
-  \begingroup
-  \let\citeselect#1\relax
-  \@citeleft
-  \@xp\@xp\@xp\ifx\cite@lookup{#2}\relax \undefined@cite{#2}%
-  \else \cite@lookup{#2}%
-  \fi
-  \if@filesw\immediate\write\@auxout{\string\citation{#2}}\fi
-  \write\@auxout{\string\citedest{#2}{\thepage}}%
-  \@ifnotempty{#3}{\citemid #3}%
-  \citeright
-  \endgroup
-}
-\newcommand{\cites}[1]{}
-\def\cites#1{\begingroup
-  \edef\@tempa{\zap@space#1 \@empty}%
-  \edef\@tempa{\@xp\strip@prefix\meaning\@tempa}%
-  \edef\@tempa{\endgroup
-    \@nx\citelist@a{}{sorted}{%
-      \@xp\cites@a\@tempa,{@\csname fi\@car\endcsname},\@nil
-    }%
-  }%
-  \@tempa
-}
-\def\cites@a#1,{%
-  \ifx @#1@\else \@nx\cite@c\@nx\citeselect{#1}{}\fi \cites@a
-}
-\newcommand{\citelist}{\@ifnextchar <{\citelist@a}{\citelist@a <{sorted}}}%
-\def\NonNumericCiteWarning{%
-  \PackageWarning{amsrefs}{%
-    Unable to confirm that cite keys are numeric: not sorting%
-  }%
-}
-\def\citelist@a#1#2#3{%
-  \leavevmode
-  \citeleft\nopunct % suppress first \citepunct
-  \begingroup
-  \def\citeleft{\@addpunct{\citepunct}}\let\citeright\ignorespaces
-  \ifx\cite@sorted\relax #3\relax
-  \else
-    \@xp\ifx\csname cite@#2\endcsname\cite@sorted
-      \ifx\citeselect\citeselect@key
-        \cite@sorted@s #3\cite@sorted@e
-      \else \NonNumericCiteWarning#3\relax
-      \fi
-    \else #3\relax
-    \fi
-  \fi
-  \endgroup
-  \citeright
-}
-\let\cite@das\@empty
-\def\cite@sorted@s{%
-  \begingroup \let\cite@print\cite@c
-    \let\cite@c\cite@compress
-    \begingroup \let\cite@c\cite@sorted \ignorespaces}
-\def\cite@sorted@e{%
-  \relax \@xp\endgroup\the\cite@toks \last@cite \endgroup
-}
-\newtoks\cite@toks
-\def\cite@sorted#1#2#3{%
-  \@tempcnta 0\cite@lookup{#2}\relax % highest number so far
-  \cite@toks{\cite@c#1{#2}{#3}}%
-  \edef\sort@cite@temp{\the\cite@toks}%
-  \let\cite@c\sort@cite@b
-  \ignorespaces
-}
-\def\sort@cite@b#1#2#3{%
-  \@tempcntb 0\cite@lookup{#2}\relax
-  \ifnum\@tempcntb>\@tempcnta
-    \cite@toks\@xp{\the\cite@toks \cite@c#1{#2}{#3}}%
-  \else
-    \let\cite@c\sort@cite@c \cite@toks\@emptytoks
-    \def\@tempb{\cite@toks\@xp{\the\cite@toks\cite@c#1{#2}{#3}}}%
-    \sort@cite@temp \@tempb \let\cite@c\sort@cite@b
-  \fi
-  \edef\sort@cite@temp{\the\cite@toks}%
-  \ignorespaces
-}
-\def\sort@cite@c#1#2#3{%
-  \ifnum\@tempcntb<0\cite@lookup{#2}%
-    \@tempb \let\@tempb\@empty
-  \fi
-  \cite@toks\@xp{\the\cite@toks \cite@c#1{#2}{#3}}%
-  \ignorespaces
-}
-\let\last@cite\@empty
-\def\cite@compress#1#2#3{%
-  \cite@print#1{#2}{#3}\@tempcnta 0\cite@lookup{#2}\relax
-  \let\cite@c\cite@compress@a
-}
-\def\cite@compress@a#1#2#3{%
-  \advance\@tempcnta\@ne \@tempcntb 0\cite@lookup{#2}\relax
-  \ifnum\@tempcnta=\@tempcntb
-    \def\cite@dash{\textendash \nopunct \let\cite@dash\@empty}%
-    \def\last@cite{\cite@print#1{#2}{#3}}%
-    \let\cite@c\cite@compress@b
-  \else
-    \cite@print#1{#2}{#3}\@tempcnta\@tempcntb
-  \fi
-}
-\def\cite@compress@b#1#2#3{%
-  \advance\@tempcnta\@ne \@tempcntb 0\cite@lookup{#2}\relax
-  \ifnum\@tempcnta=\@tempcntb
-    \cite@dash
-    \def\last@cite{\cite@print#1{#2}{#3}}%
-  \else
-    \last@cite \let\last@cite\@empty
-    \cite@print#1{#2}{#3}\@tempcnta\@tempcntb
-    \let\cite@c\cite@compress@a
-  \fi
-}
-\IfOption{unsorted-cites}{\let\cite@sorted\relax}{}
-\DeclareRobustCommand{\ycite}[1]{%
-  \star@{\cite@a\citeselect@year{#1}}{}%
-}
-\DeclareRobustCommand{\ycites}{\cites}% not done yet
-\DeclareRobustCommand{\ocite}[1]{%
-  \star@{\cite@a\citeselect@object{#1}}{}%
-}
-\DeclareRobustCommand{\ocites}{\cites}% not done yet
-\IfOption{author-year}{%
-  \let\citeselect\citeselect@authoryear
-  \def\citeleft{(}\def\citeright{)}%
-  \def\@citeleft{\ifx\citeselect\citeselect@object\else\citeleft\fi}%
-  \let\@biblabel\@gobble
-}{%
-  \let\ycite\cite \let\ocite\cite
-  \let\ycites\cites \let\ocites\cites
-}
-\let\ISSN@list=\@empty
-\newcommand{\DefineJournal}[1]{\lowercase{\DefJrn@a{#1}}}
-\def\DefJrn@a#1#2#3#4{%
-  \def\@tempa##1<#1>##2##3\@nil{%
-    \ifx\@empty##3\@empty
-    \else
-      \PackageWarning{amsrefs}{Redefining journal '#1'->'#2'}%
-    \fi
-    \toks@{##1<#1>}\@temptokena{##3}%
-    \xdef\ISSN@list{%
-      \the\toks@\@xp\@nx\csname SN.#2\endcsname\the\@temptokena
-    }%
-  }%
-  \edef\@tempb{%
-    \@nx\@xp\@nx\@tempa\@nx\ISSN@list
-      <#1>\@xp\@nx\csname SN.#2\endcsname\@nx\@nil
-  }%
-  \@tempb
-  \global\@namedef{SN.#2}{\SerialISSNName{#1}{#3}{#4}}%
-  \if\amsrefs@verbose
-    \toks@{Journal #1 -> #2 / #3^^J = #4}\typeout{\the\toks@}%
-  \fi
-}
-\newcommand{\SerialName}[3]{#2}
-\let\SerialISSNName\SerialName
-\newcommand{\DefinePublisher}[1]{%
-  \lowercase{\uppercase{\expandafter\DefPub@a\csname PN}.#1}\endcsname{#1}%
-}
-\def\DefPub@a#1#2#3#4#5{%
-  \ifx\relax#1\else
-    \PackageWarning{amsrefs}{Redefining publisher '#2'}%
-  \fi
-  \gdef#1{\PublisherNameAddress{#3}{#4}{#5}}%
-  \if\amsrefs@verbose
-    \toks@{Publisher #2 -> #3 / #5^^J = #4}\typeout{\the\toks@}%
-  \fi
-}
-\newcommand{\PublisherNameAddress}[3]{%
-  #1\IfEmptyBibField{place}{\SwapBreak{,} #3}{}%
-}
-\IfOption{jpa}{\RequirePackage{amsjpa}[2000/02/02]}{}
-\endinput
-%%
-%% End of file `amsrefs.sty'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/amsrefs.sty b/Master/texmf-dist/tex/latex/amslatex/amsrefs.sty
deleted file mode 100644
index 8fcd754b2e9..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/amsrefs.sty
+++ /dev/null
@@ -1,2996 +0,0 @@
-%%
-%% This is file `amsrefs.sty',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsrefs.dtx  (with options: `pkg')
-%% 
-%%% ====================================================================
-%%% @LaTeX-doc-source-file{
-%%%   filename  = "amsrefs.dtx",
-%%%   version   = "2.0",
-%%%   date      = "2004/06/30",
-%%%   time      = "11:24:39 EDT",
-%%%   author    = "Michael J Downes and David M. Jones",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support@ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "A LaTeX package that permits bibliography style
-%%%                to be controlled completely from the LaTeX side
-%%%                instead of being determined chiefly by the BibTeX
-%%%                style file.",
-%%%   checksum  = "09127 8030 25325 242081",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-%%%
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\NeedsTeXFormat{LaTeX2e}[1995/12/01]
-\def\amsrefs@warning@nl{\PackageWarningNoLine{amsrefs}}
-\@ifpackagewith{amsrefs}{beta}{%
-    \amsrefs@warning@nl{The beta option is deprecated^^J%
-    and will be removed in a future release of amsrefs}
-    \expandafter\edef\csname opt@amsrbeta.sty\endcsname
-        {\@ptionlist{amsrefs.sty}}%
-    \def\@currname{amsrbeta}%
-    \expandafter\let\csname amsrbeta.sty-h@@k\endcsname\@empty
-    \def\@tempa{\input{amsrbeta.sty}\endinput}%
-}{%
-    \let\@tempa\@empty
-}
-\@tempa
-\IfFileExists{url.sty}{%
-    \RequirePackage{url}\relax
-    \@gobble
-}{%
-    \@firstofone
-}
-{
-    \DeclareRobustCommand{\url}[1]{%
-        \def\@tempa{#1}%
-        \texttt{\@urlsetup $\expandafter\strip@prefix\meaning\@tempa$}%
-    }%
-    \def\@urlsetup{%
-        \check@mathfonts \textfont\@ne\the\font \textfont\z@\the\font
-        \@apply\@urlfix{\do\+\do\=\do\:\do\-\do\.\do\,\do\;}%
-        \@apply\@urlbreak{\do\&\do\/\do\?}%
-    }%
-    \def\@urlbreak#1{%
-        \mathcode`#1="8000
-        \begingroup \lccode`\~=`#1 \lowercase{\endgroup \edef~}%
-        {\mathchar\number`#1\penalty\hyphenpenalty}%
-    }%
-    \def\@urlfix#1{%
-        \mathcode`#1=`#1\relax
-    }%
-}
-\@ifundefined{NormalCatcodes}{\RequirePackage{pcatcode}\relax}{}
-\PushCatcodes\NormalCatcodes
-\ProvidesPackage{amsrefs}[2004/06/07 v1.71]
-%% WARNING WARNING WARNING: Catcode of apostrophe ' is letter
-%% throughout this file.
-\catcode`\'=11 % letter
-\def\after@deleting@token#1{%
-    \afterassignment#1%
-    \let\@let@token= % Don't delete this space!
-}
-\long\def\@ifempty#1{\@xifempty#1@@..\@nil}
-
-\long\def\@xifempty#1#2@#3#4#5\@nil{%
-    \ifx#3#4\@xp\@firstoftwo\else\@xp\@secondoftwo\fi
-}
-
-\long\def\@ifnotempty#1{\@ifempty{#1}{}}
-\def\macrotext{\expandafter\strip@prefix\meaning}
-\def\vdef#1#2{%
-    \def#1{#2}%
-    \edef#1{\macrotext#1}%
-}
-\def\auto@protect#1{\def#1{\@nx#1}}
-\def\g@undef#1{\global\let#1\relax}
-\def\@concat#1#2{\edef#1{#1#2}}
-\def\add@toks@{\addto@hook\toks@}
-\def\@lappend#1#2{%
-    \begingroup
-        \def\do{\@nx\do\@nx}%
-        \edef\@tempa{\def\@nx#1{#1\do#2}}%
-    \@xp\endgroup
-    \@tempa
-}
-\def\@apply#1#2{%
-    \let\do#1%
-    #2%
-}
-\def\get@numberof#1#2#3{%
-    \begingroup
-        \def#2{\advance\@tempcnta\@ne \@gobble}%
-        \@tempcnta\z@
-        #3\relax
-        \edef\@tempb{#1=\the\@tempcnta\relax}%
-    \@xp\endgroup
-    \@tempb
-}
-\def\safe@set#1#2{%
-    \afterassignment\@nilgobble
-    #1=0#2\relax\@nil
-}
-\def\@chomp#1#2{%
-    \begingroup
-        \toks@\@emptytoks
-        \def\@chomper##1##2#2\@empty##3\@nil{%
-            \ifx\@let@token\bgroup
-                \toks@{{##1}##2}%
-            \else
-                \toks@{##1##2}%
-            \fi
-        }%
-        \@xp\chomp@ #1\@empty#2\@empty\@nil
-        \edef\@tempa{\def\@nx#1\@xp{\the\toks@}}%
-    \@xp\endgroup
-    \@tempa
-}
-\def\chomp@{%
-    \futurelet\@let@token
-    \@chomper
-}
-\def\amsrefs@warning{\PackageWarning{amsrefs}}
-\def\amsrefs@error{\PackageError{amsrefs}}
-\def\MessageBreakNS{\MessageBreak\romannumeral`\^^@}
-\@ifundefined{@addpunct}{%
-    \def\@addpunct#1{%
-        \relax\ifhmode
-            \ifnum\spacefactor>\@m \else#1\fi
-        \fi
-    }
-    \def\frenchspacing{%
-        \sfcode`\.1006
-        \sfcode`\?1005
-        \sfcode`\!1004
-        \sfcode`\:1003
-        \sfcode`\;1002
-        \sfcode`\,1001\relax
-    }
-}{}
-\providecommand{\nopunct}{\spacefactor \@nopunctsfcode}
-\def\@nopunctsfcode{1007 }
-\RequirePackage{ifoption}[2000/02/15]
-\DeclareExclusiveOptions{sorted,citation-order}
-\DeclareExclusiveOptions{alphabetic,shortalphabetic,author-year,numeric}
-\DeclareBooleanOption{y2k}
-\DeclareBooleanOption{nobysame}
-\DeclareBooleanOption{short-journals}
-\DeclareBooleanOption{short-publishers}
-\DeclareBooleanOption{short-months}
-\DeclareBooleanOption{initials}
-\DeclareOption{abbrev}{%
-    \@pass@ptions
-        \@currext
-        {initials,short-months,short-journals,short-publishers}%
-        \@currname
-}
-\DeclareExclusiveOptions{traditional-quotes,logical-quotes}
-\DeclareExclusiveOptions{sorted-cites,non-sorted-cites}
-\DeclareExclusiveOptions{non-compressed-cites,compressed-cites}
-\DeclareBooleanOption{backrefs}
-\DeclareBooleanOption{?}
-\DeclareBooleanOption{lite}
-\DeclareBooleanOption{beta}
-\DeclareBooleanOption{jpa}
-\DeclareBooleanOption{bibtex-style}
-\ExecuteOptions{numeric,traditional-quotes,sorted-cites,compressed-cites}
-
-\ProcessOptions\relax
-
-\ProcessExclusiveOptions
-\IfOption{backrefs}{%
-    \IfFileExists{hyperref.sty}{%
-        \RequirePackage{hyperref}[1999/07/08]
-    }{}%
-    \IfFileExists{backref.sty}{%
-        \RequirePackage{backref}[1999/05/30]
-    }{}%
-}{}
-\IfOption{?}{%
-    \typeout{^^J%
-        Documentation for the amsrefs package is found in amsrdoc.dvi^^J%
-        (or .pdf or .tex).
-        ^^J%
-    }%
-}{}%
-\RequirePackage{rkeyval}[2001/12/22]
-\IfOption{lite}{% True? Then don't load the next two packages.
-}{%              False? OK, let's load them:
-    \RequirePackage{textcmds}[2001/12/14]
-    \RequirePackage{mathscinet}[2002/01/01]
-}
-\newcommand{\BibField}[1]{\csname bib'#1\endcsname}
-\newcommand{\IfEmptyBibField}{\rkvIfEmpty{bib}}
-\let\fld@elt=?
-\let\name=?
-\DefineAdditiveKey{bib}{author}{\name}
-\DefineAdditiveKey{bib}{editor}{\name}
-\DefineAdditiveKey{bib}{translator}{\name}
-\DefineAdditiveKey{bib}{contribution}{\fld@elt}
-\DefineAdditiveKey{bib}{isbn}{\fld@elt}
-\DefineAdditiveKey{bib}{issn}{\fld@elt}
-\DefineAdditiveKey{bib}{review}{\fld@elt}
-\DefineAdditiveKey{bib}{partial}{\fld@elt}
-\DefineSimpleKey{bib}{address}
-\DefineSimpleKey{bib}{book}
-\DefineSimpleKey{bib}{booktitle}
-\DefineSimpleKey{bib}{conference}
-\DefineSimpleKey{bib}{copula}
-\DefineSimpleKey{bib}{date}
-\DefineSimpleKey{bib}{doi}
-\DefineSimpleKey{bib}{edition}
-\DefineSimpleKey{bib}{eprint}
-\DefineSimpleKey{bib}{fulljournal}
-\DefineSimpleKey{bib}{hyphenation}
-\DefineSimpleKey{bib}{institution}
-\DefineSimpleKey{bib}{journal}
-\DefineSimpleKey{bib}{label}
-\DefineSimpleKey{bib}{language}
-\DefineSimpleKey{bib}{name}
-\DefineSimpleKey{bib}{note}
-\DefineSimpleKey{bib}{number}
-\DefineSimpleKey{bib}{organization}
-\DefineSimpleKey{bib}{pages}
-\DefineSimpleKey{bib}{part}
-\DefineSimpleKey{bib}{place}
-\DefineSimpleKey{bib}{publisher}
-\DefineSimpleKey{bib}{reprint}
-\DefineSimpleKey{bib}{school}
-\DefineSimpleKey{bib}{series}
-\DefineSimpleKey{bib}{setup}
-\DefineSimpleKey{bib}{status}
-\DefineSimpleKey{bib}{subtitle}
-\DefineSimpleKey{bib}{title}
-\DefineSimpleKey{bib}{translation}
-\DefineSimpleKey{bib}{type}
-\DefineSimpleKey{bib}{url}
-\DefineSimpleKey{bib}{volume}
-\DefineSimpleKey{bib}{xref}
-\DefineSimpleKey{bib}{year}
-\DefineDummyKey{bib}{transition}
-\DefineSimpleKey{prop}{inverted}
-\DefineSimpleKey{prop}{language}
-\newcommand{\BibSpec}[2]{%
-    \toks@\@emptytoks
-    \@ifnotempty{#2}{%
-        \@ifnextchar{+}{\@xp\bibspec@scan\@gobble}{\bibspec@scan}%
-        #2\@empty\@empty\@empty\@empty
-    }%
-    \@xp\edef\csname setbib@#1\endcsname{\the\toks@}%
-}
-\def\bibspec@scan#1#2#3#4{%
-    \add@toks@{\bib@append{#1}{#2}}%
-    \edef\@tempa{%
-        \toks@{\the\toks@ \@xp\@nx\csname bib'#3\endcsname}%
-    }%
-    \@tempa
-    \ifx\@empty#4%
-        \@xp\@gobble % end the recursion
-    \else
-        \ifx +#4\else\bibspec@scan@error\fi
-    \fi
-    \bibspec@scan
-}
-\def\bibspec@scan@error{\amsrefs@error{Bad BibSpec: Expected '+'}}
-\def\bib@append#1#2#3{%
-    \ifx\@empty#3%
-    \else
-        \ifx\relax#3%
-            \errmessage{#3=\relax}%
-        \else
-            \begingroup
-                \series@index\m@ne
-                \def\current@bibfield{#3}%
-                \@ifempty{#1}{%
-                    \@temptokena{\ifnum\lastkern=\@ne\ignorespaces\fi #2}%
-                }{%
-                    \@temptokena{\SwapBreak{#1}#2}%
-                }%
-                \toks@\@xp{#3}%
-                \edef\@tempa{\the\@temptokena{\the\toks@}}%
-                \rkvIfAdditive#3{}{%
-                    \get@current@properties
-                    \select@auxlanguage
-                }%
-                \@tempa
-            \endgroup
-        \fi
-    \fi
-}
-\def\select@auxlanguage{%
-    \ifx\prop'language\@empty
-    \else
-        \@xp\selectlanguage\@xp{\prop'language}%
-    \fi
-}
-\def\erase@field#1{%
-    \aftergroup\let\aftergroup#1\aftergroup\@empty
-}
-\def\get@current@properties{%
-    \begingroup
-        \@xp\get@nth@property\@xp\@tempa\current@bibfield\series@index
-        \edef\@tempa{%
-            \@nx\RestrictedSetKeys{}{prop}{%
-                \def\@nx\@tempa{\@nx\prop@reset \@nx\the\@nx\rsk@toks}%
-            }{\@tempa}%
-        }%
-        \@tempa
-    \@xp\endgroup
-    \@tempa
-}
-\newcommand{\BibSpecAlias}[2]{%
-    \@xp\def\@xp\@tempa\@xp{\csname setbib@#1\@xp\endcsname}%
-    \@xp\ifx\csname setbib@#2\endcsname\@tempa
-        \amsrefs@error{%
-            Mirror alias #1->#2 not allowed (infinite loop)}\@ehc
-    \else
-        \@xp\def\csname setbib@#1\@xp\endcsname
-            \@xp{\csname setbib@#2\endcsname}%
-    \fi
-}
-\BibSpec{article}{%
-    +{}  {\PrintAuthors}                {author}
-    +{,} { \textit}                     {title}
-    +{.} { }                            {part}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintContributions}         {contribution}
-    +{.} { \PrintPartials}              {partial}
-    +{,} { }                            {journal}
-    +{}  { \textbf}                     {volume}
-    +{}  { \PrintDatePV}                {date}
-    +{,} { \issuetext}                  {number}
-    +{,} { \eprintpages}                {pages}
-    +{,} { }                            {status}
-    +{,} { \PrintDOI}                   {doi}
-    +{,} { available at \eprint}        {eprint}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-
-\BibSpec{partial}{%
-    +{}  {}                             {part}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintContributions}         {contribution}
-    +{,} { }                            {journal}
-    +{}  { \textbf}                     {volume}
-    +{}  { \PrintDatePV}                {date}
-    +{,} { \issuetext}                  {number}
-    +{,} { \eprintpages}                {pages}
-}
-
-\BibSpec{contribution}{%
-    +{} {}                             {type}
-    +{} { by \PrintNameList}           {author}
-}
-
-\BibSpec{book}{%
-    +{}  {\PrintPrimary}                {transition}
-    +{,} { \textit}                     {title}
-    +{.} { }                            {part}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintEdition}               {edition}
-    +{}  { \PrintEditorsB}              {editor}
-    +{,} { \PrintTranslatorsC}          {translator}
-    +{,} { \PrintContributions}         {contribution}
-    +{,} { }                            {series}
-    +{,} { \voltext}                    {volume}
-    +{,} { }                            {publisher}
-    +{,} { }                            {organization}
-    +{,} { }                            {address}
-    +{,} { \PrintDateB}                 {date}
-    +{,} { }                            {status}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-
-\BibSpec{collection.article}{%
-    +{}  {\PrintAuthors}                {author}
-    +{,} { \textit}                     {title}
-    +{.} { }                            {part}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintContributions}         {contribution}
-    +{,} { \PrintConference}            {conference}
-    +{}  {\PrintBook}                   {book}
-    +{,} { }                            {booktitle}
-    +{,} { \PrintDateB}                 {date}
-    +{,} { pp.~}                        {pages}
-    +{,} { }                            {status}
-    +{,} { \PrintDOI}                   {doi}
-    +{,} { available at \eprint}        {eprint}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-
-\BibSpec{conference}{%
-    +{}  {}                        {title}
-    +{}  {\PrintConferenceDetails} {transition}
-}
-
-\BibSpec{innerbook}{%
-    +{,} { }                            {title}
-    +{.} { }                            {part}
-    +{:} { }                            {subtitle}
-    +{,} { \PrintEdition}               {edition}
-    +{}  { \PrintEditorsB}              {editor}
-    +{,} { \PrintTranslatorsC}          {translator}
-    +{,} { \PrintContributions}         {contribution}
-    +{,} { }                            {series}
-    +{,} { \voltext}                    {volume}
-    +{,} { }                            {publisher}
-    +{,} { }                            {organization}
-    +{,} { }                            {address}
-    +{,} { \PrintDateB}                 {date}
-    +{.} { }                            {note}
-}
-
-\BibSpec{report}{%
-    +{}  {\PrintPrimary}                {transition}
-    +{,} { \textit}                     {title}
-    +{.} { }                            {part}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintEdition}               {edition}
-    +{,} { \PrintContributions}         {contribution}
-    +{,} { Technical Report }           {number}
-    +{,} { }                            {series}
-    +{,} { }                            {organization}
-    +{,} { }                            {address}
-    +{,} { \PrintDateB}                 {date}
-    +{,} { \eprint}                     {eprint}
-    +{,} { }                            {status}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-
-\BibSpec{thesis}{%
-    +{}  {\PrintAuthors}                {author}
-    +{,} { \textit}                     {title}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintThesisType}            {type}
-    +{,} { }                            {organization}
-    +{,} { }                            {address}
-    +{,} { \PrintDateB}                 {date}
-    +{,} { \eprint}                     {eprint}
-    +{,} { }                            {status}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-\BibSpecAlias{periodical}{book}
-\BibSpecAlias{collection}{book}
-\BibSpecAlias{proceedings}{book}
-\BibSpecAlias{manual}{book}
-\BibSpecAlias{miscellaneous}{book}
-\BibSpecAlias{misc}{miscellaneous}
-\BibSpecAlias{unpublished}{book}
-\BibSpecAlias{proceedings.article}{collection.article}
-\BibSpecAlias{techreport}{report}
-\edef\setbib@incollection{%
-    \@xp\@nx\csname setbib@collection.article\endcsname
-}
-\edef\setbib@inproceedings{%
-    \@xp\@nx\csname setbib@collection.article\endcsname
-}
-\BibSpec{name}{%
-    +{}  {\PrintAuthors}    {name}
-}
-
-\BibSpec{publisher}{%
-    +{,} { } {publisher}
-    +{,} { } {address}
-}
-\newcounter{bib}
-\newenvironment{biblist}{%
-    \setcounter{bib}\z@
-    \@biblist
-}{%
-    \@endbiblist
-}
-\newenvironment{biblist*}{%
-    \@biblist
-}{%
-    \@endbiblist
-}
-\newcommand\@biblist[1][]{%
-    \stepcounter{bib@env}
-    \normalfont
-    \footnotesize
-    \labelsep .5em\relax
-    \list{\BibLabel}{%
-        \restore@labelwidth
-        \@maxlabelwidth\z@
-        \@nmbrlisttrue
-        \def\@listctr{bib}%
-        \let\makelabel\bib@mklab
-        #1\relax
-    }%
-    \sloppy
-    \interlinepenalty\@m
-    \clubpenalty\@M
-    \widowpenalty\clubpenalty
-    \frenchspacing
-    \ResetCapSFCodes
-}
-\def\@endbiblist{%
-    \save@labelwidth
-    \def\@noitemerr{\@latex@warning{Empty bibliography list}}%
-    \endlist
-}
-\newdimen\@maxlabelwidth
-\def\bib@mklab#1{%
-    \settowidth\@tempdima{#1}%
-    \ifdim \@tempdima > \@maxlabelwidth
-        \global\@maxlabelwidth\@tempdima
-    \fi
-    #1\hfil
-}
-\newcounter{bib@env}
-\def\save@labelwidth{%
-    \if@filesw
-        \immediate\write\@auxout{%
-            \string\newlabel{[bibenv:\the\c@bib@env]}{\the\@maxlabelwidth}%
-        }%
-    \fi
-}
-\def\restore@labelwidth{%
-    \@xp\ifx \csname r@[bibenv:\the\c@bib@env]\endcsname \relax
-        \resetbiblist{00}%
-    \else
-        \@xp\labelwidth\csname r@[bibenv:\the\c@bib@env]\endcsname
-        \leftmargin\labelwidth
-        \advance\leftmargin\labelsep
-    \fi
-}
-\providecommand{\ResetCapSFCodes}{%
-    \count@=`\A
-    \def\@tempa{%
-        \sfcode\count@=\@m
-        \advance\count@\@ne
-            \ifnum\count@>`\Z\relax \expandafter\@gobble \fi
-        \@tempa
-    }%
-    \@tempa
-}
-\def\CurrentBib{??}
-\newcommand{\BibLabel}{%
-    [\hyper@anchorstart{cite.\CurrentBib}\relax\thebib\hyper@anchorend]%
-}
-\newcommand{\resetbiblist}[1]{%
-    \settowidth\labelwidth{\def\thebib{#1}\BibLabel}%
-    \leftmargin\labelwidth
-    \ifdim\labelwidth=\z@
-        \leftmargin=1em
-        \itemindent=-\leftmargin
-    \else
-        \advance\leftmargin\labelsep
-    \fi
-}
-\newcommand{\bib}{%
-    \begingroup
-        \@ifstar{%
-            \@tempswatrue
-            \let\@bibdef\star@bibdef
-            \BibItem
-        }{%
-            \@tempswafalse
-            \BibItem
-        }%
-}
-\newcommand{\BibItem}[2]{%
-    \def\@tempa{#1}%
-    \edef\@tempb{%
-        \@nx\@bibdef\@xp\@nx\csname setbib@#2\endcsname{#2}%
-            {\macrotext\@tempa}%
-    }%
-    \@tempb
-}
-\AtBeginDocument{\let\@bibdef\normal@bibdef}
-\AtBeginDocument{\let\bib@exec\bib@print}
-\def\normal@bibdef#1#2#3{%
-    \def\CurrentBibType{#2}%
-    \ifx\relax#1%
-        \amsrefs@error{Undefined entry type: #2}\@ehc
-        \let#1\setbib@misc
-    \fi
-    \RestrictedSetKeys{}{bib}%
-        {\bib@exec{#3}{\the\rsk@toks}{#1}\endgroup}%
-}
-
-\let\@bibdef\normal@bibdef
-\def\star@bibdef{%
-    \let\bib@exec\bib@store
-    \normal@bibdef
-}
-\def\copy@bibdef{%
-    \if@tempswa
-        \@xp\defer@bibdef
-    \else
-        \@xp\copy@bibdef@a
-    \fi
-}
-\def\copy@bibdef@a#1#2#3#4{%
-    \@open@bbl@file
-    \process@xrefs{#4}%
-    \bbl@write{%
-        \string\bib\if@tempswa*\fi{#3}{#2}\string{\iffalse}\fi
-    }%
-    \RestrictedSetKeys{\global\let\rsk@set\bbl@copy}\@empty
-        {\bbl@write{\iffalse{\fi\string}^^J}%
-         \endgroup}{#4}%
-}
-\catcode`\:=11
-
-\def\modify@xref@fields{%
-    \let\set:bib'author\output@xref@a
-    \let\set:bib'editor\output@xref@a
-    \let\set:bib'translator\output@xref@a
-    \let\set:bib'journal\output@xref@a
-    \let\set:bib'publisher\output@xref@a
-    \def\set:bib'xref##1##2{\output@xref@{##1}\@empty}%
-}
-
-\catcode`\:=12
-
-\def\process@xrefs#1{%
-    \begingroup
-        \RestrictedSetKeys{\modify@xref@fields}{bib}{\the\rsk@toks}{#1}%
-    \endgroup
-}
-
-\def\output@xref@a#1#2{%
-    \def\@tempa{#1}%
-    \lowercase{\def\@tempb{#1}}%
-    \ifx\@tempa\@tempb
-        \output@xref@{#1}%
-    \fi
-}
-
-\def\output@xref@#1{%
-    \@ifnotempty{#1}{%
-        \@ifundefined{bi@#1}{}{%
-            \begingroup
-                \let\star@bibdef\copy@bibdef@a
-                \csname bi@#1\endcsname
-            \endgroup
-        }%
-        \@xp\g@undef\csname bi@#1\endcsname
-    }%
-}
-\def\bbl@copy#1\endcsname#2{%
-    \begingroup
-        \def\@tempa{#1}%
-        \toks@{{#2}}%
-        \star@{\bbl@copy@a}{}%
-}
-\def\bbl@copy@a#1{%
-        \@ifnotempty{#1}{%
-            \add@toks@{*{#1}}%
-        }%
-        \bbl@write{ \space\@tempa=\the\toks@,}%
-    \endgroup
-    \rsk@resume
-}
-\def\selective@bibdef#1#2#3{%
-    \@xp\selbibdef@a\csname b@#3\endcsname{#1}{#2}{#3}%
-}
-\def\selbibdef@a#1{%
-    \def\@tempa{\endgroup\@gobblefour}%
-    \ifx\relax#1\else \@xp\selbibdef@b#1\@nil \fi
-    \@tempa
-}
-\def\selbibdef@b#1#2#3\@nil{%
-    \ifx 1#2\let\@tempa\copy@bibdef\fi
-}
-\def\defer@bibdef#1#2#3#4{%
-        \@xp\gdef\csname bi@#3\endcsname{%
-            \bib*{#3}{#2}{#4}%
-        }%
-        \@xp\addto@defer@list \csname bi@#3\endcsname
-    \endgroup
-}
-\let\bibdefer@list\@empty
-\def\addto@defer@list#1{%
-    \begingroup
-        \def\do{\@nx\do\@nx}%
-        \xdef\bibdefer@list{\bibdefer@list\do#1}%
-    \endgroup
-}
-\def\bib@store#1{%
-    \afterassignment\@gobble
-    \@xp\xdef\csname bi@#1\endcsname
-}
-\def\numeric@refs{00}
-\def\bib@print#1#2#3{%
-    \bib@start{#1}%
-        \let\setbib@@#3%
-        #2\relax       % execute definitions locally
-        \bib@resolve@xrefs
-        \bib@field@patches
-        \bib@selectlanguage
-        \generate@label
-        \bib'setup
-        \bib@cite{#1}%
-        \kern\@ne sp
-        \ifx\setbib@@\setbib@article
-            \ifx\bib'booktitle\@empty
-                \ifx\bib'book\@empty
-                    \ifx\bib'conference\@empty
-                    \else
-                        \let\setbib@@\setbib@incollection
-                    \fi
-                \else
-                    \let\setbib@@\setbib@incollection
-                \fi
-            \else
-                \let\setbib@@\setbib@incollection
-            \fi
-        \fi
-        \setbib@@
-    \bib@end
-}
-\def\bib@print@inner#1#2{%
-    \begingroup
-        #2\relax       % execute definitions locally
-        \bib@field@patches
-        \bib'setup
-        #1%
-    \endgroup
-}
-\let\current@citekey\@empty
-\let\prev@citekey\@empty
-\def\bib@start#1{%
-    \begingroup
-        \def\current@citekey{#1}%
-}
-\def\bib@end{%
-        \relax
-        \@xp\PrintBackRefs\@xp{\CurrentBib}%
-        \par
-        \save@primary
-        \global\let\prev@citekey\current@citekey
-    \endgroup
-}
-\def\bib@resolve@xrefs{%
-    \xref@check@c\bib'xref
-    \xref@check@a\bib'author
-    \xref@check@a\bib'editor
-    \xref@check@a\bib'translator
-    \xref@check@b\bib'journal
-    \xref@check@b\bib'publisher
-}
-\def\xref@check@a#1{%
-    \ifx\@empty#1\relax
-    \else
-        \begingroup
-            \toks@\@emptytoks
-            \@temptokenb\@emptytoks
-            \series@index\z@
-            \def\name{\xref@check@aa#1}%
-            #1\relax
-            \edef\@tempa{%
-                \def\@nx#1{\the\toks@}%
-                \the\@temptokenb
-            }%
-        \@xp\endgroup
-        \@tempa
-    \fi
-}
-\def\xref@check@aa#1#2{%
-    \advance\series@index\@ne
-    \def\@tempa{#2}%
-    \lowercase{\def\@tempb{#2}}%
-    \ifx\@tempa\@tempb
-        \ifx\@tempa\@empty
-            \add@toks@{\name{}}%
-        \else
-            \@ifundefined{bi@#2}{%
-                \BibAbbrevWarning{#2}%
-                \add@toks@{\name{#2}}%
-            }{%
-                \xref@check@ab#1{#2}%
-            }%
-        \fi
-    \else
-        \add@toks@{\name{#2}}%
-    \fi
-}
-\def\xref@check@ab#1#2{%
-    \csname bi@#2\endcsname
-    \ifx\@empty\bib'name
-        \@temptokena{#2}%
-    \else
-        \@temptokena\@xp{\bib'name}%
-        \get@property\@tempa\bib'name
-        \edef\@tempa{%
-            \@nx\addto@hook\@temptokenb{%
-                \@nx\reset@nth@property\@nx#1\the\series@index{\@tempa}%
-            }%
-        }%
-        \@tempa
-    \fi
-    \edef\@tempa{\@nx\add@toks@{\@nx\name{\the\@temptokena}}}%
-    \@tempa
-}
-\def\xref@check@b#1{%
-    \ifx\@empty#1%
-    \else
-        \toks@\@xp{#1}%
-        \edef\@tempb{\lowercase{\def\@nx\@tempa{\the\toks@}}}%
-        \@tempb
-        \ifx\@tempa#1\relax % all lowercase
-            \@ifundefined{bi@#1}{%
-                \BibAbbrevWarning{#1}%
-            }{%
-                \let#1\@empty
-                \xref@check@c\@tempa
-            }%
-        \fi
-    \fi
-}
-\def\xref@check@c#1{%
-    \ifx#1\@empty
-    \else
-        \begingroup
-            \let\DSK@def\xref@add@toks
-            \let\DSK@append\xref@append
-            \toks@\@emptytoks
-            \let\bib@reset\@empty
-            \@for\xref@ID:=#1\do{%
-                \@ifundefined{bi@\xref@ID}{%
-                    \XRefWarning{\xref@ID}%
-                }{%
-                    \csname bi@\xref@ID\endcsname
-                }%
-            }%
-            \edef\@tempa{\endgroup\the\toks@}%
-        \@tempa
-    \fi
-}
-\def\xref@add@toks#1#2#3{%
-    \ifx#1\@empty
-        \edef\@tempa{%
-            \@nx\add@toks@{\@xp\@nx\csname\rkv@setter#1\endcsname{#2}{#3}}%
-        }%
-        \@tempa
-    \else
-        \in@\bib'title{#1}%
-        \ifin@
-            \ifx\bib'booktitle\@empty
-                \edef\@tempa{%
-                    \@nx\add@toks@{%
-                        \@xp\@nx\csname set:bib'booktitle\endcsname
-                    }%
-                }%
-                \@tempa
-                \add@toks@{{#2}{#3}}%
-            \fi
-        \fi
-    \fi
-}
-\def\xref@append#1#2#3#4{%
-    \edef\@tempa{%
-        \@nx\add@toks@{\@xp\@nx\csname\rkv@setter#2\endcsname{#3}{#4}}%
-    }%
-    \@tempa
-}
-\def\BibAbbrevWarning#1{\amsrefs@warning{Abbreviation '#1' undefined}}
-\def\XRefWarning#1{\amsrefs@warning{Xref '#1' undefined}}
-\let\current@primary\@empty
-\let\previous@primary\@empty
-\IfOption{nobysame}{%
-    \let\save@primary\@empty
-}{%
-    \def\save@primary{%
-        \global\let\previous@primary\current@primary
-    }%
-}
-\def\bib@field@patches{%
-    \ifx\bib'author\@empty
-        \ifx\bib'editor\@empty
-            \let\current@primary\bib'translator
-            \let\print@primary\PrintTranslatorsA
-        \else
-            \let\current@primary\bib'editor
-            \let\print@primary\PrintEditorsA
-        \fi
-    \else
-        \let\current@primary\bib'author
-        \let\print@primary\PrintAuthors
-    \fi
-    \ifx\bib'address\@empty
-        \let\bib'address\bib'place
-    \fi
-    \ifx\bib'organization\@empty
-        \ifx\bib'institution\@empty
-            \let\bib'organization\bib'school
-        \else
-            \let\bib'organization\bib'institution
-        \fi
-    \fi
-    \ifx\bib'date\@empty
-        \ifx\bib'year\@empty
-            \let\bib@year\bib'status
-        \else
-            \bib@parsedate\bib'year
-        \fi
-    \else
-        \bib@parsedate\bib'date
-    \fi
-    \def\@tempa{year}%
-    \ifx\bib'volume\@tempa
-        \let\bib'volume\bib@year
-        \let\bib'date\@empty
-    \fi
-    \bib@language@fixup
-}
-\let\bib@year\@empty
-\let\bib@month\@empty
-\let\bib@day\@empty
-\def\bib@parsedate#1{%
-    \@xp\bib@parsedate@a#1---\@nil
-}
-\def\bib@parsedate@a#1-#2-#3-#4\@nil{%
-    \def\bib@year{#1}%
-    \def\bib@month{#2}%
-    \def\bib@day{#3}%
-    \ifx\@empty\bib@day
-        \ifx\@empty\bib@month
-            \let\bib'date\bib@year
-        \else
-            \def\bib'date{#1-#2}%
-        \fi
-    \else
-        \def\bib'date{#1-#2-#3}%
-    \fi
-}
-\def\bib@language@fixup{%
-    \ifx\bib'hyphenation\@empty
-        \ifx\bib'language\@empty
-            \let\bib@language\biblanguagedefault
-        \else
-            \let\bib@language\bib'language
-        \fi
-    \else
-        \let\bib@language\bib'hyphenation
-    \fi
-    \def\@tempa##1 ##2\@nil{\lowercase{\def\bib@language{##1}}}%
-    \@firstofone{\@xp\@tempa\bib@language} \@nil
-}
-\def\bib@selectlanguage{%
-    \@ifsame@patterns{\languagename}{\bib@language}{}{%
-        \@ifundefined{date\bib@language}{}{%
-            \@xp\selectlanguage\@xp{\bib@language}%
-        }%
-    }%
-}
-\def\@ifsame@patterns#1#2{%
-    \@xp\@ifsamepat\csname l@#1\@xp\endcsname\csname l@#2\endcsname
-}
-\def\@ifsamepat#1#2{%
-    \ifnum \ifx\relax#1\m@ne\else#1\fi = \ifx\relax#2\m@ne\else#2\fi
-        \@xp\@firstoftwo
-    \else
-        \@xp\@secondoftwo
-    \fi
-}
-\providecommand{\languagename}{english}
-\def\biblanguageEnglish{english}
-\let\biblanguagedefault\biblanguageEnglish
-\let\bib@language\@empty
-\let\generate@label\relax
-\def\cite@label{\@currentlabel}
-\let\alpha@label\relax
-\def\bib@cite#1{%
-    \def\CurrentBib{#1}%
-    \alpha@label            % modify \thebib if necessary
-    \item\leavevmode
-    \SK@\SK@@label{#1}%
-    \@xp\bib@cite@a\csname b@#1\endcsname
-    \bibcite@write{#1}%
-}
-\def\bib@cite@a#1{%
-    \ifx\relax#1%
-        \begingroup
-            \auto@protect\etaltext
-            \protected@edef\@tempa{%
-                \gdef\@nx#1{%
-                    \@nx\citesel 01{\cite@label}{\bib@label@year}{}%
-                }%
-            }%
-        \@xp\endgroup
-        \@tempa
-    \else
-        \@xp\bib@cite@check\@xp#1#1\@empty\@empty\@empty\@empty\@empty
-    \fi
-}
-\def\bib@cite@check#1#2#3#4#5#6#7{%
-    \ifx 1#4\relax
-        \DuplicateBibKeyWarning
-    \else
-        \begingroup
-            \auto@protect\etaltext
-            \@apply\auto@protect\amsrefs@textsymbols
-            \@apply\auto@protect\amsrefs@textaccents
-            \@tempswafalse
-            \in@\CitePrintUndefined{#5}%
-            \ifin@
-                \let\@tempa\@empty
-            \else
-                \def\@tempa{#5}%
-            \fi
-            \ifx\@tempa\@empty
-            \else
-                \@xp\ifx\@xp\@currentlabel\cite@label
-                    \edef\@tempb{\cite@label}%
-                \else
-                    \let\@tempb\cite@label
-                \fi
-                \ifx\@tempa\@tempb
-                    \def\@tempa{#6}%
-                    \ifx\@tempa\bib@label@year
-                    \else
-                        \@tempswatrue
-                    \fi
-                \else
-                    \@tempswatrue
-                \fi
-            \fi
-            \if@tempswa
-                \@ifempty{#6}{%
-                    \def\@tempa{#5}%
-                    \let\@tempb\cite@label
-                }{%
-                    \def\@tempa{#5, #6}%
-                    \def\@tempb{\cite@label, \bib@label@year}%
-                }%
-                \amsrefs@warning{Citation label for \extr@cite#1 is
-                    changing from `\@tempa ' to `\@tempb '}%
-            \fi
-            \protected@edef\@tempa{%
-                \gdef\@nx#1{%
-                    \@nx\citesel #31{\cite@label}{\bib@label@year}{#7}%
-                }%
-            }%
-        \@xp\endgroup
-        \@tempa
-    \fi
-}
-\let\bib@label@year\@empty
-\def\DuplicateBibKeyWarning{%
-    \amsrefs@warning{%
-        Duplicate \protect\bib\space key
-        `\CurrentBib ' detected\MessageBreakNS}%
-}
-\def\bibcite@write#1{%
-    \if@filesw
-        \let\citesel\citesel@write
-        \csname b@#1\endcsname
-    \fi
-}
-\def\citesel@write#1#2#3#4#5{%
-    \begingroup
-        \toks@{{#3}{#4}}%
-        \immediate\write\@auxout{\string\bibcite{\CurrentBib}{\the\toks@}}%
-    \endgroup
-}
-\AtEndDocument{\let\bibcite\@gobbletwo}
-\providecommand{\bibname}{Bibliography}
-\providecommand{\refname}{References}
-\newenvironment{bibchapter}[1][\bibname]{%
-    \begingroup
-        \protected@edef\@{\endgroup\protect\chapter*{#1}}%
-        \@
-}{\par}
-\newenvironment{bibsection}[1][\refname]{%
-    \begingroup
-        \protected@edef\@{\endgroup\protect\section*{#1}}%
-        \@
-}{\par}
-\@ifundefined{chapter}{%
-    \newenvironment{bibdiv}{\bibsection}{\endbibsection}
-}{%
-    \newenvironment{bibdiv}{\bibchapter}{\endbibchapter}
-}
-\renewenvironment{thebibliography}[1]{%
-    \bibdiv
-    \biblist[\resetbiblist{#1}]%
-}{%
-    \endbiblist
-    \endbibdiv
-}
-\newcommand{\DefineName}[2]{%
-    \bib*{#1}{name}{name={#2}}%
-}
-\newcommand{\DefineJournal}[4]{%
-    \bib*{#1}{periodical}{
-        issn={#2},
-        journal={#4}
-    }%
-}
-\newcommand{\DefinePublisher}[4]{%
-    \bib*{#1}{publisher}{%
-        publisher={#3},
-        address={#4}
-    }%
-}
-\newcommand{\bibselect}{%
-    \@ifstar{%
-        \let\@bibdef\copy@bibdef
-        \BibSelect
-    }{%
-        \let\@bibdef\selective@bibdef
-        \BibSelect
-    }%
-}
-\newcommand{\BibSelect}[2][\bblname]{%
-    \if@filesw
-        \typeout{Trying to create bbl file `#1.bbl' ...}%
-        \def\bibselect@msg{%
-            \typeout{ ... rats. Unable to create bbl file.}%
-        }%
-        \let\@open@bbl@file\OpenBBLFile
-        \@for\@tempa:=#2\do{\ReadBibData{\@tempa}}%
-    \fi
-    \@close@bbl@file
-    \@apply\g@undef\bibdefer@list
-    \global\let\bibdefer@list\@empty
-    \let\@bibdef\normal@bibdef
-    \@input@{#1.bbl}%
-    \let\BibSelect\MultipleBibSelectWarning
-}
-\newcommand\MultipleBibSelectWarning[2][]{%
-    \amsrefs@warning{%
-        Multiple \string\bibselect 's found (only one
-        \string\bibselect\space per biblist environment is allowed)%
-    }%
-}
-\def\bblname{\jobname}
-\newread\bib@dbfile
-\newcommand{\ReadBibData}[1]{%
-    \IfFileExists{#1.ltb}{%
-        \openin\bib@dbfile=\@filef@und \relax
-    }{%
-        \IfFileExists{#1.ltx}{%
-            \openin\bib@dbfile=\@filef@und \relax
-        }{%
-            \IfFileExists{#1.tex}{%
-                \openin\bib@dbfile=\@filef@und \relax
-            }{%
-                \begingroup
-                    \NoBibDBFile{#1}%
-                    \let\ReadBibData@a\endgroup
-            }%
-        }%
-    }%
-    \ReadBibData@a
-}
-\def\NoBibDBFile#1{%
-    \amsrefs@warning{No data file #1.ltb (.ltx, .tex) found}%
-}
-\def\ReadBibData@a{%
-    \ProvidesFile{\@filef@und}\relax
-    \begingroup
-        \let\star@bibdef\defer@bibdef
-        \ReadBibLoop
-    \endgroup
-    \closein\bib@dbfile
-}
-\def\ReadBibLoop{%
-    \ifeof\bib@dbfile
-        \@xp\@gobble
-    \else
-        \read\bib@dbfile to\CurLine
-        \@xp\ReadBibLoop@a\CurLine\@empty\@nil
-    \fi
-    \ReadBibLoop
-}
-\long\def\ReadBibLoop@a#1#2\@nil{%
-    \ifx\bib#1%
-        \CurLine % just exec it
-    \else
-        \ifx\endinput#1%
-            \let\ReadBibLoop\@empty
-        \else
-            \@xp\ReadBibLoop@b#1#2\@empty\@nil
-        \fi
-    \fi
-}
-\long\def\ReadBibLoop@b#1#2\@nil{%
-    \ifx\bib#1%
-        \CurLine % just exec it
-    \fi
-}
-\let\bbl@out=\relax
-\let\bbl@write\@gobble
-\let\@open@bbl@file\relax
-\let\@close@bbl@file\relax
-\def\OpenBBLFile{%
-    \if@filesw
-        % Just use the next unused output stream
-        \count@\count17
-        \advance\count@\@ne
-        \ifnum\count@<\sixt@@n
-            \global\chardef\bbl@out=\count@
-            \immediate\openout\bbl@out=\bblname.bbl\relax
-            \global\let\@close@bbl@file\CloseBBLFile
-            \gdef\bbl@write{\immediate\write\bbl@out}%
-        \else
-            \ch@ck\count@\sixt@@n\write
-        \fi
-    \fi
-    \global\let\@open@bbl@file\relax
-}
-\def\CloseBBLFile{%
-    \immediate\closeout\bbl@out\relax
-    \global\let\@close@bbl@file\relax
-    \global\let\bbl@write\@gobble
-    \global\let\bbl@out\relax
-}
-\def\citesel@update#1#2#3#4#5#6{%
-    \gdef#6{\citesel 1#2{#3}{#4}{#5}}%
-}
-\def\citesel@number#1#2#3#4#5{#3}
-\def\citesel@year#1#2#3#4#5{#4}
-\let\citesel\citesel@number
-\expandafter\let\csname cite \endcsname\relax
-\renewcommand{\cite}[2][]{%
-    \if\cite@single#2,\@gobble \else\MultipleCiteKeyWarning{#2}{#1}\fi
-    \@ifempty{#1}{%
-        \cites@o{#2}%
-    }{%
-        \ObsoleteCiteOptionWarning
-        \cites@a{*{#1}}{#2}%
-    }%
-}
-\def\MultipleCiteKeyWarning#1#2{%
-    \amsrefs@warning{%
-        Use of \string\cites\space is recommended instead of %
-        \string\cite\space\MessageBreak
-        for multiple cites '#1'}%
-    \@ifnotempty{#2}{%
-        \amsrefs@warning{Star option requires \string\citelist\space here}%
-    }%
-    \global\let\MultipleCiteKeyWarning\@gobbletwo
-}
-\def\ObsoleteCiteOptionWarning{%
-    \amsrefs@warning{%
-        The form \string\cite{...}*{...} is recommended\MessageBreak
-        instead of \string\cite[...]{...}}%
-    \global\let\ObsoleteCiteOptionWarning\@empty
-}
-\edef\cite@single#1,#2{\iffalse{\fi\iffalse{\fi\string}#2.\string}}
-\def\cites@o#1{\star@{\cites@oo{#1}}{}}
-\def\cites@oo#1#2{\@ifempty{#2}{\cites@a{}{#1}}{\cites@a{*{#2}}{#1}}}
-\def\cites@a#1#2{%
-    \begingroup
-        \toks@{\endgroup \cites@b{#1}}%
-        \vdef\@tempa{#2}%
-        \edef\@tempa{%
-            \the\toks@ \@firstofone{\@xp\zap@space\@tempa} \@empty
-        }%
-        \@tempa,\@empty
-        \edef\@tempa{\endgroup\@nx\citelist{\the\toks@}}%
-        \@tempa
-}
-\def\cites@b#1#2,#3{%
-    \begingroup
-        \toks@{\InnerCite{#2}#1}%
-        \ifx\@empty#3\@xp\@gobble\fi
-        \cites@c#3%
-}
-\def\cites@c#1,#2{%
-    \add@toks@{\InnerCite{#1}}%
-    \ifx\@empty#2\@xp\@gobble\fi
-    \cites@c#2%
-}
-\def\citeleft{[}
-\def\citeright{]}
-\def\citemid{,\penalty9999 \space}
-\def\citepunct{,\penalty9999 \hskip.13em plus.1em minus.05em\relax}
-\def\citeAltPunct{;\ }
-\providecommand{\citeform}{\@firstofone}
-\DeclareRobustCommand{\citelist}{\@citelist}
-\def\@citelist#1{%
-    \leavevmode
-    \begingroup
-        \@citestyle
-        \citeleft\nopunct   % suppress first \citepunct
-        \cite@begingroup
-            \in@*{#1}%
-            \ifin@
-                \let\citepunct\citeAltPunct
-            \fi
-            \let\cite@endgroup\@empty
-            \cites@init
-            \def\citeleft{\@addpunct{\citepunct}}%
-            \let\citeright\ignorespaces
-            \def\cite{\InnerCite}%
-            \process@citelist{#1}%
-        \endgroup
-        \citeright
-    \endgroup
-}
-\providecommand{\@citestyle}{\m@th\upshape\mdseries}
-\def\cite@begingroup{\begingroup\let\cite@begingroup\relax}
-\let\cite@endgroup\endgroup
-\def\cites@init{%
-    \gdef\prev@names{???}%
-    \let\cites@init\@empty
-}
-\newcommand{\InnerCite}[1]{\star@{\cite@a\citesel{#1}}{}}
-\def\cite@a#1#2{%
-    \BackCite{#2}%
-    \cite@begingroup
-        \cites@init
-        \let\citesel#1\relax
-        \ifx\citesel\citesel@author
-            \let\citeleft\@empty
-            \let\citeright\@empty
-        \fi
-        \begingroup
-            \toks@{\endgroup \cite@b}%
-            \vdef\@tempa{#2}%
-            \edef\@tempa{%
-                \the\toks@{\@firstofone{\@xp\zap@space\@tempa} \@empty}%
-            }%
-        \@tempa
-}
-\def\cite@b#1#2{%
-    \@xp\cite@bc\csname b@#1\@xp\endcsname {#1}{#2}%
-}
-\def\cite@bc#1#2{%
-    \ifx#1\@@undefined \global\let#1\relax \fi
-    \ifx#1\relax       \global\let#1\empty@cite \fi
-    \@xp\cite@nobib@test#1{}{}{}{}\@nil#1%
-    \cite@cj#1%
-}
-\def\empty@cite{\citesel 00{}{}{}}
-\def\cite@nobib@test#1#2#3#4#5\@nil#6{%
-    \@ifempty{#4}{%
-        \G@refundefinedtrue
-        \UndefinedCiteWarning#6%
-        \xdef#6{\@nx\citesel #2#3{%
-            \@nx\CitePrintUndefined{\extr@cite#6}}{}{}}%
-    }{}%
-}
-\def\UndefinedCiteWarning#1{%
-    \@latex@warning{%
-        Citation `\extr@cite#1' on page \thepage\space undefined}%
-}
-\DeclareRobustCommand{\CitePrintUndefined}[1]{%
-    \begingroup\fontshape{n}\fontseries\mddefault \ttfamily ?#1\endgroup
-}
-\let\CPU@normal\CitePrintUndefined
-\def\cite@cj#1#2{%
-        \leavevmode
-            \begingroup
-                \cite@cb#1% write info to aux file
-                \ar@SK@cite#1%
-                \@citeleft
-                \ar@hyperlink{#1}%
-                \@ifnotempty{#2}{\citemid{#2}}%
-                \citeright
-            \endgroup
-            \ignorespaces % ignore spaces inside \citelist
-        \cite@endgroup
-}
-\def\@citeleft{\citeleft}
-\def\cite@cb#1{%
-    \if@filesw
-        \immediate\write\@auxout{\string\citation{\extr@cite#1}}%
-    \fi
-    \begingroup
-        \let\citesel\citesel@update
-        #1#1%
-    \endgroup
-}
-\def\extr@cite{\@xp\@gobblethree\string}
-\DeclareRobustCommand{\cites}{\cites@a{}}
-\providecommand{\citen}{\ocite}
-\def\ycite{\cite}
-\let\ycites\cites
-\let\ocite\ycite
-\let\ocites\cites
-\let\fullcite\cite
-\let\fullocite\ocite
-\let\citeauthor\ycite
-\let\citeauthory\ycite
-\renewcommand{\nocite}[1]{\othercites{#1}}
-\newcommand{\othercites}[1]{%
-    \cite@begingroup
-        \let\cite@endgroup\@empty
-        \def\citelist{\othercitelist}%
-        \cites{#1}%
-}
-\newcommand{\othercitelist}[1]{%
-    \cite@begingroup
-        \let\cite@endgroup\@empty
-        \cites@init
-        \let\citeleft\relax
-        \let\citeright\ignorespaces
-        \def\InnerCite{\OtherCite}%
-        \def\cite@cj ##1##2{%
-            \begingroup
-                \@xp\citesel##1%
-                \cite@cb ##1%
-            \endgroup
-            \@xp\ifx\csname b@*\endcsname ##1%
-                \global\let\selective@bibdef\copy@bibdef
-            \fi
-            \ignorespaces
-            \cite@endgroup
-        }%
-    #1\relax
-    \endgroup
-}
-\def\OtherCite#1{\cite@a\citesel@other{#1}{}{}}
-\def\citesel@other#1#2#3#4#5#6{}
-\@namedef{b@*}{\citesel 11{*}{*}{*}}
-\def\process@citelist@sorted#1{%
-    \ifx\citesel\citesel@number
-        \cite@sorted@s #1\cite@sorted@e
-    \else
-        \NonNumericCiteWarning
-        \process@citelist@unsorted{#1}%
-    \fi
-}
-\def\NonNumericCiteWarning{%
-    \amsrefs@warning{%
-        Unable to confirm that cite keys are numeric: not sorting%
-    }%
-}
-\def\process@citelist@unsorted#1{%
-    \ignorespaces#1\relax
-}
-\let\process@citelist\process@citelist@sorted
-\def\CPU@sort#1{2147483647}
-\def\cite@sorted@s{%
-    \begingroup
-        \let\CitePrintUndefined\CPU@sort
-        \let\cite@cjs\cite@cj
-        \let\cite@cj\cite@compress
-        \begingroup
-            \toks@\@emptytoks
-            \let\cite@cj\cite@sort
-            \ignorespaces
-}
-\def\cite@sorted@e{%
-        \@xp\endgroup
-        \the\toks@
-        \cite@dash
-        \prev@cite
-    \endgroup
-}
-\def\cite@sort#1#2{%
-    \safe@set\@tempcnta#1% highest number so far
-    \toks@{\cite@cj#1{#2}}%
-    \@temptokena\toks@
-    \let\cite@cj\cite@sort@a
-    \ignorespaces
-}
-\def\cite@sort@a#1#2{%
-    \safe@set\@tempcntb#1%
-    \ifnum\@tempcntb > \@tempcnta
-        \add@toks@{\cite@cj#1{#2}}%
-        \@tempcnta\@tempcntb
-    \else
-        \let\cite@cj\cite@sort@b
-        \toks@\@emptytoks
-        \def\@tempb{\add@toks@{\cite@cj#1{#2}}}%
-        \the\@temptokena
-        \@tempb
-        \let\cite@cj\cite@sort@a
-    \fi
-    \@temptokena\toks@
-    \ignorespaces
-}
-\def\cite@sort@b#1#2{%
-    \safe@set\count@#1%
-    \ifnum\@tempcntb < \count@
-        \@tempb
-        \let\@tempb\@empty
-    \fi
-    \add@toks@{\cite@cj#1{#2}}%
-    \ignorespaces
-}
-\let\prev@cite\@empty
-\def\prev@cite@cb{%
-    \ifx\@prev@cite\@empty
-    \else
-        \begingroup
-            \def\cite@print##1##2{%
-                \cite@cb##1%
-            }%
-            \prev@cite
-        \endgroup
-    \fi
-}
-\def\cite@print#1#2{%
-    \begingroup
-        \let\CitePrintUndefined\CPU@normal
-        \cite@cjs#1{#2}%
-    \endgroup
-}
-\let\cite@dash\@empty
-\def\print@one@dash{%
-    \textendash \nopunct
-    \let\cite@dash\@empty
-}
-\def\cite@compress#1#2{%
-    \cite@print#1{#2}%
-    \@ifempty{#2}{%
-        \safe@set\@tempcnta#1%
-        \let\cite@cj\cite@compress@a
-    }{}%
-}
-\def\cite@compress@a#1#2{%
-    \@ifempty{#2}{%
-        \advance\@tempcnta\@ne
-        \safe@set\@tempcntb#1%
-        \ifnum\@tempcnta=\@tempcntb
-            \def\prev@cite{\cite@print#1{}}%
-            \let\cite@cj\cite@compress@b
-        \else
-            \cite@print#1{}%
-            \@tempcnta\@tempcntb
-        \fi
-    }{%
-        \cite@print#1{#2}%
-        \let\cite@cj\cite@compress
-    }%
-}
-\def\cite@compress@b#1#2{%
-    \@ifempty{#2}{%
-        \advance\@tempcnta\@ne
-        \safe@set\@tempcntb#1%
-        \ifnum\@tempcnta=\@tempcntb
-            \let\cite@dash\print@one@dash
-            \prev@cite@cb
-            \def\prev@cite{\cite@print#1{}}%
-        \else
-            \cite@dash
-            \prev@cite
-            \let\prev@cite\@empty
-            \cite@print#1{}%
-            \@tempcnta\@tempcntb
-            \let\cite@cj\cite@compress@a
-        \fi
-    }{%
-        \cite@dash
-        \prev@cite
-        \let\prev@cite\@empty
-        \cite@print#1{#2}%
-        \let\cite@cj\cite@compress
-    }%
-}
-\def\bibcite#1{\@xp\bibcite@a\csname b@#1\endcsname}
-\def\bibcite@a#1#2{%
-    \ifx\relax#1%
-        \gdef#1{\citesel 00#2{}}%
-    \else
-        \begingroup
-            \@xp\bibcite@b\@xp#1#1{#2}%
-        \endgroup
-    \fi
-}
-\def\bibcite@b#1#2#3#4#5#6#7#8{\gdef#1{\citesel#3#4#8{#7}}}
-\newcommand{\citedest}[1]{\@xp\cite@dest\csname b@#1\endcsname}
-\def\cite@dest#1{%
-    \ifx\relax#1%
-        \gdef#1{\citesel 00{}{}{}}%
-    \fi
-    \@xp\cite@dest@b\@xp#1#1%
-}
-\def\cite@dest@b#1#2#3#4#5#6#7#8{%
-    \@ifempty{#7}{%
-        \def#1{\citesel #3#4{#5}{#6}{{#8}}}%
-    }{%
-        \gdef#1{\citesel #3#4{#5}{#6}{#7,{#8}}}%
-    }%
-}
-\@ifundefined{ifBR@verbose}{\let\ifBR@verbose\iffalse \let\fi\fi}{}%
-\let\BackCite\@gobble
-\def\back@cite#1{%
-    \ifBR@verbose
-        \PackageInfo{backref}{back cite \string `\extr@cite#1'}%
-    \fi
-    \Hy@backout{#1}%
-}
-\def\print@backrefs#1{%
-    \space\SentenceSpace$\uparrow$\csname br@#1\endcsname
-}
-\let\PrintBackRefs\@gobble
-\def\ar@hyperlink#1{\hyper@@link [cite]{}{cite.\extr@cite#1}{#1}}
-\def\ar@SK@cite#1{\@bsphack\@xp\SK@\@xp\SK@@ref\@xp{\extr@cite#1}\@esphack}
-\AtBeginDocument{%
-    \@ifundefined{hyper@@link}{%
-        \let\ar@hyperlink\@firstofone
-        \let\hyper@anchorstart\@gobble
-        \let\hyper@anchorend\relax
-    }{}%
-    \@ifundefined{SK@@label}{%
-        \let\ar@SK@cite\@gobble
-        \let\SK@@label\@gobble
-        \let\SK@\@gobbletwo
-    }{}%
-}
-\let\amsrefs@textaccents\@empty
-\def\DeclareNameAccent{%
-    \@lappend\amsrefs@textaccents
-}
-\DeclareNameAccent\"
-\DeclareNameAccent\'
-\DeclareNameAccent\.
-\DeclareNameAccent\=
-\DeclareNameAccent\^
-\DeclareNameAccent\`
-\DeclareNameAccent\~%
-\DeclareNameAccent\b
-\DeclareNameAccent\c
-\DeclareNameAccent\d
-\DeclareNameAccent\H
-\DeclareNameAccent\k
-\DeclareNameAccent\r
-\DeclareNameAccent\t
-\DeclareNameAccent\u
-\DeclareNameAccent\v
-\DeclareNameAccent\utilde
-\DeclareNameAccent\uarc
-\DeclareNameAccent\dudot
-\DeclareNameAccent\lfhook
-\DeclareNameAccent\udot
-\DeclareNameAccent\polhk
-\DeclareNameAccent\soft
-\DeclareNameAccent\etalchar
-\let\amsrefs@textsymbols\@empty
-\def\DeclareNameSymbol#1#2{%
-    \@lappend\amsrefs@textsymbols#1%
-    \@lappend\amsrefs@textsymbols#2%
-    \ifx#1#2\else
-        \@lappend\amsrefs@textsymbols#2%
-        \@lappend\amsrefs@textsymbols#2%
-    \fi
-}
-\DeclareNameSymbol\i\i
-\DeclareNameSymbol\j\j
-\DeclareNameSymbol\AE\ae
-\DeclareNameSymbol\OE\oe
-\DeclareNameSymbol\O\o
-\DeclareNameSymbol\DH\dh
-\DeclareNameSymbol\DJ\dj
-\DeclareNameSymbol\L\l
-\DeclareNameSymbol\NG\ng
-\DeclareNameSymbol\SS\ss
-\DeclareNameSymbol\TH\th
-\DeclareNameSymbol\Dbar\dbar
-\DeclareNameSymbol\lasp\lasp
-\DeclareNameSymbol\rasp\rasp
-\DeclareNameSymbol\cprime\cprime
-\DeclareNameSymbol\cdprime\cdprime
-\DeclareNameSymbol\bud\bud
-\DeclareNameSymbol\cydot\cydot
-\DeclareNameSymbol~~%
-\def\normalize@edef#1#2{%
-    \begingroup
-        \@apply\auto@protect\amsrefs@textsymbols
-        \@apply\wrap@accent\amsrefs@textaccents
-        \let\@tabacckludge\use@accent
-        \let~\space
-        \edef\@tempa{\def\@nx#1{#2}}%
-    \@xp\endgroup
-    \@tempa
-}
-\def\use@accent#1{\csname\string#1\endcsname}
-\def\wrap@accent#1{%
-    \def#1##1{{\@nx#1##1}}%
-}
-\def\lc@edef#1#2{%
-    \begingroup
-        \let\@tabacckludge\use@accent %%??
-        \@apply\auto@protect\amsrefs@textaccents
-        \@apply\lc@do\amsrefs@textsymbols
-        \edef\@tempa{\lowercase{\def\@nx#1{#2}}}%
-    \@xp\endgroup
-    \@tempa
-}
-\def\lc@do#1\do#2{%
-    \ifx#1#2%
-        \auto@protect#1%
-    \else
-        \def#1{#2}%
-    \fi
-}
-\def\purge@edef#1#2{%
-    \begingroup
-        \@apply\auto@protect\amsrefs@textsymbols
-        \let~\space
-        \@apply\purge@accent\amsrefs@textaccents
-        \let\@tabacckludge\@gobble
-        \def\i{i}%
-        \def\j{j}%
-        \edef\@tempa{#2}%
-        \toks@\@emptytoks
-        \@xp\purge@edef@ \@tempa \@nil
-        \edef\@tempa{\def\@nx#1{\the\toks@}}%
-    \@xp\endgroup
-    \@tempa
-}
-\def\purge@edef@{%
-    \futurelet\@let@token
-    \purge@edef@a
-}
-\def\purge@edef@a#1{%
-    \ifx\@let@token\@nil
-        \let\@tempa\@empty
-    \else
-        \ifx\@let@token\bgroup
-            \def\@tempa{%
-                \purge@edef@ #1\@nil
-                \purge@edef@
-            }%
-        \else
-            \add@toks@{#1}%
-            \let\@tempa\purge@edef@
-        \fi
-    \fi
-    \@tempa
-}
-\def\purge@accent#1{%
-    \def#1##1{##1}%
-}
-\def\name@split{%
-    \get@namepart\bib'surname\name@split@given
-}
-\def\name@split@given{%
-    \get@namepart\bib'given\name@split@jr
-}
-\def\name@split@jr{%
-    \get@namepart\bib'jr\name@split@finish
-}
-\def\name@split@finish{%
-    \ifx\bib'surname\@empty \EmptyNameWarning \fi
-%%      \ifx\@empty\bib'given
-%%          \NameCheck \bib'surname ??\@nil
-%%      \else
-        \extract@initials\bib'given
-%%      \fi
-    \@nilgobble
-}
-\def\get@namepart#1#2{%
-    \toks@{#1}%
-    \@temptokena{#2}%
-    \get@namepart@a
-}
-\def\get@namepart@a{%
-    \futurelet\@let@token
-    \get@namepart@b
-}
-\def\get@namepart@b{%
-    \ifx\@let@token\@sptoken
-        \@xp\get@namepart@c
-    \else
-        \@xp\get@namepart@d
-    \fi
-}
-\def\get@namepart@c{%
-    \after@deleting@token\get@namepart@a
-}
-\def\get@namepart@d{%
-    \futurelet\@let@token
-    \get@namepart@e
-}
-\def\get@namepart@e{%
-    \ifx\@let@token,%
-        \@xp\let\the\toks@\@empty
-        \edef\@tempa{%
-            \@nx\after@deleting@token\the\@temptokena
-        }%
-        \@xp\@tempa
-    \else
-        \@xp\get@namepart@f
-    \fi
-}
-\def\get@namepart@f#1#2,{%
-    \ifx\@let@token\bgroup
-        \@xp\def\the\toks@{{#1}#2}%
-    \else
-        \@xp\def\the\toks@{#1#2}%
-    \fi
-    \the\@temptokena
-}
-\def\EmptyNameWarning{\amsrefs@warning{Empty contributor name}}
-\def\extract@initials#1{%
-    \begingroup
-        \auto@protect\ini@hyphen
-        \auto@protect\nobreakspace
-        \let~\relax
-        \@apply\auto@protect\amsrefs@textsymbols
-        \@apply\auto@protect\amsrefs@textaccents
-        \normalize@edef\@tempa{#1}%
-        \ifx\@tempa\@empty
-        \else
-            \process@hyphens\@tempa
-            \process@dots\@tempa
-            \process@names\@tempa
-            \@chomp\@tempa{~}%
-        \fi
-        \edef\@tempa{\def\@nx\bib'initials{\@tempa}}%
-    \@xp\endgroup
-    \@tempa
-}
-\def\ini@hyphen{\unskip-\nobreak}
-\def\process@hyphens#1{%
-    \begingroup
-        \toks@\@emptytoks
-        \@xp\process@one@hyphen #1-\@nil
-        \edef\@tempa{\the\toks@}%
-        \@chomp\@tempa{ \ini@hyphen\space}%
-        \edef\@tempa{\def\@nx#1{\@tempa}}%
-    \@xp\endgroup
-    \@tempa
-}
-\def\process@one@hyphen{%
-    \futurelet\@let@token
-    \process@one@hyphen@a
-}
-\def\process@one@hyphen@a{%
-    \ifx\@let@token\@nil
-        \let\fsa@n\@gobble
-    \else
-        \ifx\@let@token -%
-            \TrailingHyphenWarning
-            \let\fsa@n\process@one@hyphen@b
-        \else
-            \ifx\@let@token\@sptoken
-                \let\fsa@n\process@one@hyphen@b
-            \else
-                \let\fsa@n\process@one@hyphen@c
-            \fi
-        \fi
-    \fi
-    \fsa@n
-}
-\def\process@one@hyphen@b{%
-    \after@deleting@token\process@one@hyphen
-}
-\def\process@one@hyphen@c#1#2-{%
-    \ifx\bgroup\@let@token
-        \add@toks@{{#1}#2 \ini@hyphen\space}%
-    \else
-        \add@toks@{#1#2 \ini@hyphen\space}%
-    \fi
-    \futurelet\@let@token
-    \process@one@hyphen@d
-}
-\def\process@one@hyphen@d{%
-    \ifx\@let@token\@nil
-        \@xp\@gobble
-    \else
-        \@xp\process@one@hyphen
-    \fi
-}
-\def\TrailingHyphenWarning{%
-    \amsrefs@warning{Trailing hyphen deleted from name}%
-}
-\def\process@dots#1{%
-    \begingroup
-        \toks@\@emptytoks
-        \@xp\process@one@dot #1.\@nil
-        \edef\@tempa{\the\toks@}%
-        \@chomp\@tempa{. }%
-        \@chomp\@tempa{ }%
-        \edef\@tempa{\def\@nx#1{\@tempa}}%
-    \@xp\endgroup
-    \@tempa
-}
-\def\process@one@dot{%
-    \futurelet\@let@token
-    \process@one@dot@a
-}
-\def\process@one@dot@a{%
-    \ifx\@let@token .%
-        \def\fsa@n{\after@deleting@token\process@bare@dot}%
-    \else
-        \ifx\@let@token\@sptoken
-            \let\fsa@n\process@one@dot@b
-        \else
-            \let\fsa@n\process@one@dot@c
-        \fi
-    \fi
-    \fsa@n
-}
-\def\process@bare@dot{%
-    \add@toks@{. }%
-    \futurelet\@let@token
-    \process@one@dot@d
-}
-\def\process@one@dot@b{%
-    \after@deleting@token\process@one@dot
-}
-\def\process@one@dot@c#1#2.{%
-    \ifx\bgroup\@let@token
-        \add@toks@{{#1}#2. }%
-    \else
-        \add@toks@{#1#2. }%
-    \fi
-    \futurelet\@let@token
-    \process@one@dot@d
-}
-\def\process@one@dot@d{%
-    \ifx\@let@token\@nil
-        \@xp\@gobble
-    \else
-        \@xp\process@one@dot
-    \fi
-}
-\def\process@names#1{%
-    \begingroup
-        \toks@\@emptytoks
-        \@xp\extract@initial #1 \@nil
-        \edef\@tempa{\def\@nx#1{\the\toks@}}%
-    \@xp\endgroup
-    \@tempa
-}
-\def\extract@initial{%
-    \futurelet\@let@token
-    \extract@initial@a
-}
-\def\extract@initial@a{%
-    \ifx\@let@token\@nil
-        \let\fsa@n\@gobble
-    \else
-        \ifx\@let@token\@sptoken
-            \let\fsa@n\extract@initial@b
-        \else
-            \let\fsa@n\extract@initial@c
-        \fi
-    \fi
-    \fsa@n
-}
-\def\extract@initial@b{%
-    \after@deleting@token\extract@initial
-}
-\def\extract@initial@c#1#2 {%
-    \ifx\@let@token\bgroup
-        \@extract@initial {{#1}}#2\@nil
-    \else
-        \@extract@initial #1#2\@nil
-    \fi
-    \futurelet\@let@token
-    \extract@initial@d
-}
-\def\extract@initial@d{%
-    \ifx\@let@token\@nil
-        \@xp\@gobble
-    \else
-        \@xp\extract@initial
-    \fi
-}
-\def\@extract@initial#1#2\@nil{%
-    \ifx\ini@hyphen#1%
-        \add@toks@{\ini@hyphen}%
-    \else
-        \in@{.\@nil}{#1#2\@nil}% Look for a period at the end of the name
-        \ifin@
-            \add@toks@{#1#2~}%
-        \else
-            \count@chars\@tempcnta{#1#2}%
-            \ifnum\@tempcnta > \@ne
-                \add@toks@{#1.~}%
-            \else
-                \add@toks@{#1~}%
-            \fi
-        \fi
-    \fi
-}
-\def\count@chars#1#2{%
-    \begingroup
-        \@tempcnta\z@
-        \@count@chars#2\@nil
-        \edef\@tempb{#1=\the\@tempcnta\relax}%
-    \@xp\endgroup
-    \@tempb
-}
-\def\@count@chars#1{%
-    \ifx #1\@nil
-    \else
-        \advance\@tempcnta\@ne
-        \@xp\@count@chars
-    \fi
-}
-\let\previous@stem\@empty
-\let\current@stem\@empty
-\let\previous@year\@empty
-\let\current@year\@empty
-\def\append@to@stem{\global\@concat\current@stem}
-\def\generate@alphalabel{%
-    \ifx\bib'label\@empty
-        \begingroup
-            \global\let\previous@stem\current@stem
-            \global\let\current@stem\@empty
-            \@apply\auto@protect\amsrefs@textsymbols
-            \@apply\auto@protect\amsrefs@textaccents
-            \auto@protect\name
-            \auto@protect\etaltext
-            \normalize@edef\@tempa\current@primary
-            \get@numberof\@tempcnta\name\@tempa
-            \calc@author@part
-            \append@label@year
-            \calc@alpha@suffix
-            \edef\@tempa{%
-                \def\@nx\bib'label{%
-                    \current@stem
-                    \alpha@label@suffix
-                }%
-            }%
-        \@xp\endgroup
-        \@tempa
-    \fi
-}
-\def\calc@author@part{%
-    \ifnum \@tempcnta = 1
-        \@xp\@oneauthorlabel\@xp{\@tempa}%
-    \else
-        \@xp\@multiauthorlabel\@xp{\@tempa}%
-    \fi
-}
-\def\@firstone#1{\@car#1\@empty\@nil}
-\def\@firstthree#1{\@carcube#1\@empty\@empty\@empty\@nil}
-\let\@nametoken\@firstone
-\def\hyph@to@space#1-{#1 \hyph@to@space}
-\def\@marknames#1{%
-    \@ifnotempty{#1}{\surround@names#1 ' }%
-}
-\def\surround@names#1 {%
-    \ifx '#1%
-    \else
-        \@nx\@nametoken{#1}%
-        \@xp\surround@names
-    \fi
-}
-\def\extract@surnames#1#2{%
-    \get@namepart\@tempb\@nilgobble #2,\@nil
-    \edef\@tempb{\@nx\@marknames{\@xp\hyph@to@space\@tempb\@gobble-}}%
-    \edef#1{\@tempb}%
-}
-\newcommand{\@oneauthorlabel}[1]{%
-    \def\name##1{%
-        \extract@surnames\@tempa{##1}%
-        \get@numberof\@tempcnta\@nametoken\@tempa
-        \ifnum \@tempcnta = 1
-            \let\@nametoken\@firstthree
-        \fi
-        \append@to@stem{\@tempa}%
-    }%
-    #1%
-}
-\def\@threeauthors\name#1\name#2\name#3#4\@empty{%
-    \name{#1}\name{#2}\name{#3}%
-    \append@to@stem{\etalchar{+}}%
-}
-\newcommand{\@multiauthorlabel}[1]{%
-    \def\name##1{%
-        \ifx\etaltext ##1%
-            \def\@tempa{\@nx\etalchar{+}}%
-            \let\name\@gobble
-        \else
-            \extract@surnames\@tempa{##1}%
-        \fi
-        \append@to@stem{\@tempa}%
-    }%
-    \ifnum \@tempcnta > 4 \@xp \@threeauthors \fi
-    #1\@empty
-}
-\newcommand{\etalchar}[1]{$^{#1}$}
-\def\year@short#1#2#3#4\@nil{#3#4}
-\def\append@label@year{%
-    \safe@set\@tempcnta\bib@year
-    \edef\bib@citeyear{\the\@tempcnta}%
-    \append@to@stem{%
-        \ifx\bib@year\@empty
-        \else
-            \@xp\year@short \bib@citeyear \@nil
-        \fi
-    }%
-}
-\let\alpha@label@suffix\@empty
-
-\newcount\alpha@suffix
-\alpha@suffix\@ne
-\let\@suffix@format\@alph
-\def\calc@alpha@suffix{%
-    \@tempswafalse
-    \compare@stems\previous@stem\current@stem
-    \ifsame@stems
-        \ifx\previous@year\current@year
-            \@tempswatrue
-        \fi
-    \fi
-    \if@tempswa
-        \global\advance\alpha@suffix\@ne
-        \edef\alpha@label@suffix{\@suffix@format\alpha@suffix}%
-        \ifnum\alpha@suffix=\tw@
-            \immediate\write\@auxout{%
-                \string\ModifyBibLabel{\prev@citekey}%
-            }%
-        \fi
-    \else
-        \let\alpha@label@suffix\@empty
-        \global\alpha@suffix\@ne
-        \@xp\ifx \csname b@\current@citekey @suffix\endcsname \relax
-        \else
-            \edef\alpha@label@suffix{\@suffix@format\alpha@suffix}%
-        \fi
-    \fi
-}
-\newif\ifsame@stems
-\def\compare@stems#1#2{%
-    \begingroup
-        \purge@edef\@tempa{#1}%
-        \purge@edef\@tempb{#2}%
-        \lc@edef\@tempa{\@tempa}%
-        \lc@edef\@tempb{\@tempb}%
-        \ifx\@tempa\@tempb
-            \def\@tempa{\same@stemstrue}%
-        \else
-            \def\@tempa{\same@stemsfalse}%
-        \fi
-    \@xp\endgroup
-    \@tempa
-}
-\def\ModifyBibLabel#1{%
-    \global\@xp\let\csname b@#1@suffix\endcsname\@empty
-}
-\newcount\series@index
-\def\PrintSeries#1#2#3#4#5#6#7#8{%
-    \begingroup
-        \def\series@add@a{#2}%
-        \def\series@add@b{\SwapBreak{#3}#4}%
-        \def\series@add@c{\SwapBreak{#5}#6}%
-        \def\series@add@d{\SwapBreak{#7}#8}%
-        \def\series@add@e{\SwapBreak{#7}}%
-        \PrintSeries@a{#1}%
-}
-\def\PrintSeries@a#1#2#3#4{%
-        \get@numberof\@tempcnta#1{#3}%
-        \chardef\series@total=\@tempcnta
-        \ifnum\series@total=\@ne
-            \let\SingularPlural\@firstoftwo
-        \else
-            \let\SingularPlural\@secondoftwo
-        \fi
-        \series@index=\z@
-        \let#1\series@add
-        #2#3#4\relax
-    \endgroup
-}
-\def\series@add#1{%
-    \advance\series@index\@ne
-    \ifx\etaltext#1\relax
-        \ifnum\series@index=\tw@
-            \def\@tempa{\space\SubEtal}%
-        \else
-            \def\@tempa{\series@add@e\space\SubEtal}%
-        \fi
-        \series@index\@MM
-    \else
-        \ifcase\series@index
-        \or
-            \let\@tempa\series@add@a
-        \or
-            \ifnum\series@total<\thr@@
-                \let\@tempa\series@add@b
-            \else
-                \let\@tempa\series@add@c
-            \fi
-        \else
-            \ifnum\series@index=\series@total
-                \let\@tempa\series@add@d
-            \else
-                \ifnum\series@index<\series@total
-                    \let\@tempa\series@add@c
-                \else
-                    \let\@tempa\@gobble
-                \fi
-            \fi
-        \fi
-    \fi
-    \@tempa{#1}%
-}
-\def\SwapBreak#1{%
-    \relax\ifvmode\leavevmode\fi
-    \@tempcnta\@MM
-    \toks@{#1}%
-    \unskip
-    \ifnum \lastkern>\@ne \unkern \fi
-    \ifnum\lastpenalty=\z@
-    \else
-        \@tempcnta\lastpenalty
-        \unpenalty
-    \fi
-    \edef\@tempa{%
-        \@nx\deferredquoteslogical
-        \ifnum\lastkern=\@ne
-        \else
-            \ifnum\spacefactor=\sfcode\@xp\@xp\@xp`\@xp\@car\string#1)\@nil
-            \else
-                \ifnum\spacefactor=\@nopunctsfcode
-                \else
-                    \the\toks@
-                \fi
-            \fi
-        \fi
-        \@nx\deferredquotes
-        \ifnum\@tempcnta=\@MM \else \penalty\number\@tempcnta\space \fi
-        \ifnum\lastkern=\@ne \ignorespaces \fi
-    }%
-    \@tempa
-}
-\newcommand{\SingularPlural}[2]{#1}
-\newcommand{\Plural}{\SingularPlural{}}
-\BibSpec{nameLE}{
-    +{}{}{given}
-    +{}{\IfEmptyBibField{given}{}{ }}{surname}
-    +{}{ }{jr}
-}
-\BibSpec{nameBE}{
-    +{}{}{surname}
-    +{}{ }{given}
-}
-\BibSpec{nameinverted}{
-    +{} {}  {surname}
-    +{,}{ } {given}
-    +{,}{ } {jr}
-}
-\newcommand{\PrintNames}{%
-    \@ifstar{\PrintNames@a\set@othername}{\PrintNames@a\set@firstname}%
-}
-\newcommand{\PrintNames@a}[4]{%
-    \PrintSeries{\name}
-        {#1}
-        {}{ and \set@othername}
-        {,}{ \set@othername}
-        {,}{ and \set@othername}
-        {#2}{#4}{#3}%
-}
-\def\set@firstname#1{%
-    \set@name{#1}\setbib@nameLE
-}
-\def\set@othername#1{%
-    \set@name{#1}\setbib@nameLE
-}
-\def\set@name#1{%
-    \name@split#1,,,\@nil
-    \set@name@a
-}
-\def\set@name@a#1{%
-    \begingroup
-        \get@current@properties
-        \select@auxlanguage
-        \def\@tempa{yes}%
-        \ifx\@tempa\prop'inverted
-            \setbib@nameBE
-        \else
-            #1%
-        \fi
-    \endgroup
-}
-\def\PrintPrimary{%
-    \ifx\current@primary\@empty
-        \EmptyPrimaryWarning
-    \else
-        \print@primary\current@primary
-    \fi
-}
-\def\EmptyPrimaryWarning{%
-    \amsrefs@warning{No authors, editors or translators}%
-}
-\newcommand{\PrintAuthors}[1]{%
-    \ifx\previous@primary\current@primary
-        \sameauthors\@empty
-    \else
-        \def\current@bibfield{\bib'author}%
-        \PrintNames{}{}{#1}%
-    \fi
-}
-\newcommand{\sameauthors}[1]{\bysame#1}
-\def\bysame{%
-    \leavevmode\hbox to3em{\hrulefill}\thinspace
-    \kern\z@
-}
-\newcommand{\PrintNameList}{\PrintNames{}{}}
-\newcommand{\PrintEditorsC}[1]{%
-    \PrintNames{Edited by }{}{#1}%
-}
-\newcommand{\PrintEditorsA}[1]{%
-    \ifx\previous@primary\current@primary
-        \sameauthors{(ed\Plural{s}.)}%
-    \else
-        \def\current@bibfield{\bib'editor}%
-        \PrintNames{}{ (ed\Plural{s}.)}{#1}%
-    \fi
-    \erase@field\bib'editor
-}
-\newcommand{\PrintEditorsB}{%
-    \PrintNames*{(}{\SwapBreak{,}~ed\Plural{s}.)}%
-}
-\newcommand{\PrintContributions}[1]{%
-    \PrintSeries
-        {\fld@elt}
-        {\print@contribution}
-        {}{ and \print@contribution}
-        {,}{ \print@contribution}
-        {,}{ and \print@contribution}{}{#1}{}%
-}
-\newcommand{\print@contribution}[1]{%
-    \in@={#1}%
-    \ifin@
-        \ifnum\series@index=\@ne with \fi
-        \RestrictedSetKeys{}{bib}{%
-            \bib@print@inner\setbib@contribution{\the\rsk@toks}%
-        }{#1}%
-    \else
-        #1%
-    \fi
-}
-\def\resolve@inner#1#2{%
-    \in@={#2}%
-    \ifin@
-        \RestrictedSetKeys{}{bib}{#1{\the\rsk@toks}}{#2}%
-    \else
-        \@ifundefined{bi@#2}{%
-            \XRefWarning{#2}%
-        }{%
-            #1{\csname bi@#2\endcsname}%
-        }%
-    \fi
-}
-\def\PrintConference{%
-    \resolve@inner{\bib@print@inner\setbib@conference}
-}
-\def\PrintConferenceDetails#1{%
-    \ifx\@empty\bib'address
-        \ifx\@empty\bib'date
-        \else
-            \PrintConferenceDetails@
-        \fi
-    \else
-        \PrintConferenceDetails@
-    \fi
-}
-\def\PrintConferenceDetails@{%
-    \ifnum\lastkern=\@ne\else\space\fi(\kern 1sp
-    \ifx\@empty\bib'address
-    \else
-        \bib'address
-    \fi
-    \ifx\@empty\bib'date
-    \else
-        \SwapBreak{,}\space
-        \print@date
-    \fi
-    )%\spacefactor\sfcode`\,%
-}
-\def\PrintBook{%
-    \resolve@inner{\bib@print@inner\setbib@innerbook}
-}
-\def\PrintReprint{%
-    \resolve@inner{\bib@reprint}
-}
-\def\bib@reprint#1{%
-    \begingroup
-        #1\relax            % execute definitions locally
-        \bib@field@patches
-        \bib'setup
-        \IfEmptyBibField{copula}{reprinted in}{\bib'copula} \nopunct
-        \let\bib'language\@empty
-        \setbib@book
-    \endgroup
-}
-\def\PrintTranslation{%
-    \resolve@inner{\bib@translation}
-}
-\def\bib@translation#1{%
-    \begingroup
-        #1\relax            % execute definitions locally
-        \bib@field@patches
-        \bib'setup
-        \let\PrintPrimary\@empty
-        \bib@append{;}{ % keep this space!
-            \IfEmptyBibField{language}{English}{\bib'language} transl.%
-            \IfEmptyBibField{pages}{ in \kern\@ne sp}{, }%
-        }\bib'transition
-        \let\bib'language\@empty
-        \setbib@@
-    \endgroup
-}
-\newcommand{\PrintTranslatorsC}[1]{%
-    \PrintNames{translated by }{}{#1}%
-}
-\newcommand{\PrintTranslatorsA}[1]{%
-    \ifx\previous@primary\current@primary
-        \sameauthors{(trans.)}%
-    \else
-        \def\current@bibfield{\bib'translator}%
-        \PrintNames{}{ (trans.)}{#1}%
-    \fi
-    \erase@field\bib'translator
-}
-\newcommand{\PrintTranslatorsB}[1]{
-    \PrintNames*{(}{\SwapBreak{,}~tran\Plural{s}.)}%
-}
-\DefineName{alii}{\etaltext}
-\DefineName{others}{\etaltext}
-\newcommand{\etaltext}{et al.}
-\newcommand{\SubEtal}[1]{\etaltext}
-\newcommand{\print@partial}{%
-    \resolve@inner{\bib@print@inner\setbib@partial}
-}
-\newcommand{\parenthesize}[1]{%
-    \leavevmode\push@bracket)\upn{(}#1\pop@bracket
-}
-\providecommand{\upn}[1]{#1}
-\let\bracket@stack\@empty
-
-\def\push@bracket#1{%
-    \xdef\bracket@stack{#1\bracket@stack}%
-}
-
-\def\pop@bracket{%
-    \iffalse{\fi
-    \@xp\pop@bracket@a\bracket@stack \@empty}%
-}
-
-\def\pop@bracket@a#1{%
-    \leavevmode\/\upn{#1}%
-    \xdef\bracket@stack{\iffalse}\fi
-}
-\newcommand{\bibquotes}[1]{%
-    \textquotedblleft#1%
-    \gdef\deferredquotes{%
-        \global\let\deferredquotes\@empty
-        \textquotedblright
-    }%
-}
-\providecommand{\mdash}{\textemdash}
-\providecommand{\ndash}{\textendash}
-\def\MR#1{%
-    \relax\ifhmode\unskip\spacefactor3000 \space\fi
-    \def\@tempa##1:##2:##3\@nil{%
-        \ifx @##2\@empty##1\else\textbf{##1:}##2\fi
-    }%
-    \MRhref{#1}{MR \@tempa#1:@:\@nil}%
-}
-\providecommand{\MRhref}[1]{}
-\newcommand{\PrintReviews}[1]{%
-    \PrintSeries{\fld@elt}{}{,}{ }{,}{ }{,}{ }{}{#1}{}%
-}
-\newcommand{\PrintPartials}[1]{%
-    \PrintSeries
-        {\fld@elt}
-        {\print@partial}
-        {;}{ \print@partial}
-        {;}{ \print@partial}
-        {;}{ \print@partial}{}{#1}{}%
-}
-\newcommand{\PrintISBNs}[1]{%
-    \PrintSeries{\fld@elt}{}{,}{ }{,}{ }{,}{ }{ISBN }{#1}{}%
-}
-\newcommand{\voltext}{\IfEmptyBibField{series}{Vol.~}{vol.~}}
-\newcommand{\issuetext}{no.~}
-\newcommand{\DashPages}[1]{%
-    p\pp@scan@a#1@\ndash p@\ndash{\pp@scan#1@-p@-{}\@nil}\@nil.~#1%
-}
-
-\def\pp@scan#1-#2@-#3#4\@nil{#3}
-
-\def\pp@scan@a#1\ndash#2@\ndash#3#4\@nil{#3}
-\newcommand{\eprintpages}[1]{%
-    #1\IfEmptyBibField{eprint}{}{\IfEmptyBibField{journal}{ pp.}{}}%
-}
-\def\PrintThesisType#1{%
-    \thesis@type#1?\@nil{#1}%
-}
-
-\def\thesis@type#1#2\@nil#3{%
-    \ifx p#1%
-        Ph.D. Thesis%
-    \else
-        \ifx m#1%
-            Master's Thesis%
-        \else
-            #3%
-        \fi
-    \fi
-}
-\newcommand{\PrintDOI}[1]{%
-    DOI #1%
-    \IfEmptyBibField{volume}{, (to appear in print)}{}%
-}
-\newcommand{\PrintDatePV}[1]{%
-    \IfEmptyBibField{doi}{%
-        \let\@tempa\PrintDate
-    }{%
-        \IfEmptyBibField{volume}{%
-            \let\@tempa\PrintDatePosted
-        }{%
-            \let\@tempa\PrintDate
-        }%
-    }%
-    \@tempa{#1}%
-}
-\newcommand{\PrintDate}[1]{(\print@date)}
-\newcommand{\PrintDateB}[1]{\print@date}
-\def\print@date{%
-    \ifx\bib@month\@empty
-    \else
-        \print@month@day
-    \fi
-    \bib@year
-}
-\def\print@month@day{%
-    \bib@monthname
-    \ifx\@empty\bib@day \else \nobreakspace\number 0\bib@day,\fi
-    \space
-}
-\newcommand{\bib@monthname}{%
-    \ifcase 0\bib@month
-    \or January\or February\or March\or April\or May\or June\or
-      July\or August\or September\or October\or November\or December\or
-      Winter\or Spring\or Summer\or Fall\else Unknown Month%
-    \fi
-}
-\newcommand{\PrintYear}[1]{\bib@year}
-\newcommand{\PrintDatePosted}[1]{\unskip,  posted on \print@date}
-\newcommand{\PrintEdition}[1]{%
-    \afterassignment\print@edition
-    \count@ 0#1\relax\@nil
-}
-\def\print@edition#1#2\@nil{%
-    \ifx\relax#1\relax
-        \ifnum\count@>\z@
-            \CardinalNumeric\count@
-        \else
-            ??th%
-        \fi
-        \ \editiontext
-    \else
-        \ifnum \count@>\z@ \number\count@ \fi
-        #1#2\relax
-    \fi
-}
-\newcommand{\editiontext}{ed.}
-\newcommand{\CardinalNumeric}[1]{%
-    \number#1\relax
-    \if
-        \ifnum#1<14
-            \ifnum#1>\thr@@ T\else F\fi
-        \else
-            F%
-        \fi
-        T%
-            th%
-    \else
-        \@xp\keep@last@digit\@xp#1\number#1\relax
-        \ifcase#1th\or st\or nd\or rd\else th\fi
-    \fi
-}
-\def\keep@last@digit#1#2{%
-    \ifx\relax#2%
-        \@xp\@gobbletwo
-    \else
-        #1=#2\relax
-    \fi
-    \keep@last@digit#1%
-}
-\newcommand{\SentenceSpace}{\relax\ifhmode\spacefactor`\. \fi}
-\newcommand{\eprint}[1]{\url{#1}}
-\let\bibliographystyle\@gobble
-\def\bibtex@style{amsrn}
-\AtBeginDocument{
-    \if@filesw
-        \immediate\write\@auxout{\string\bibstyle{\bibtex@style}}%
-    \fi
-}
-\IfOption{alphabetic}{%
-    \def\bibtex@style{amsra}%
-    \def\alpha@label{%
-        \ifx\@empty\bib'label
-            \def\thebib{\CurrentBib}%
-        \else
-            \let\thebib\bib'label
-        \fi
-    }%
-    \let\generate@label\generate@alphalabel
-    \let\process@citelist\process@citelist@unsorted
-    \def\numeric@refs{01}%
-}{}
-\IfOption{shortalphabetic}{%
-    \def\bibtex@style{amsrs}%
-    \def\alpha@label{%
-        \ifx\@empty\bib'label
-            \def\thebib{\CurrentBib}%
-        \else
-            \let\thebib\bib'label
-        \fi
-    }%
-    \let\@suffix@format\@arabic
-    \def\calc@author@part{%
-        \@xp\@multiauthorlabel\@xp{\@tempa}%
-    }%
-    \let\append@label@year\@empty
-    \let\generate@label\generate@alphalabel
-    \let\process@citelist\process@citelist@unsorted
-    \def\numeric@refs{01}%
-}{}
-\IfOption{backrefs}{%
-    \let\PrintBackRefs\print@backrefs
-    \@ifundefined{Hy@backout}{%
-        \amsrefs@warning{backref option requires hyperref package}%
-    }{%
-        \let\BackCite\back@cite
-        \AtBeginDocument{\@starttoc{brf}{}}%
-    }%
-}{%
-}
-\IfOption{citation-order}{%
-    \IfOption{alphabetic}{%
-        \amsrefs@warning@nl{%
-            The 'citation-order' and 'alphabetic' options are
-            incompatible%
-        }%
-    }{
-        \def\bibtex@style{amsru}%
-    }
-}{}
-\IfOption{initials}{% TRUE:
-    \BibSpec{nameLE}{
-        +{}{}{initials}
-        +{}{\IfEmptyBibField{initials}{}{ }}{surname}
-        +{}{ }{jr}
-    }
-
-    \BibSpec{nameBE}{
-        +{}{}{surname}
-        +{}{ }{initials}
-    %    +{}{ }{jr}
-    }
-
-    \BibSpec{nameinverted}{
-        +{} {}  {surname}
-        +{,}{ } {initials}
-        +{,}{ } {jr}
-    }
-}{% initials? FALSE:
-} % end conditional code for initials option
-\IfOption{jpa}{%
-    \amsrefs@warning{The 'jpa' option is obsolete}%
-    \typeout{Trying \string\usepackage{amsjpa} instead ...}%
-    \RequirePackage{amsjpa}[2000/02/02]
-}{}
-\let\deferredquotes\@empty
-\IfOption{logical-quotes}{%
-    \def\deferredquoteslogical{\deferredquotes}%
-}{%
-    \let\deferredquoteslogical\relax
-}
-\IfOption{non-compressed-cites}{%
-    \let\cite@compress\cite@print
-}{}
-\IfOption{non-sorted-cites}{%
-    \let\process@citelist\process@citelist@unsorted
-}{}
-\IfOption{short-journals}{%
-    \renewcommand{\DefineJournal}[4]{%
-        \bib*{#1}{periodical}{
-            issn={#2},
-            journal={#3},
-        }%
-    }
-}{}
-\IfOption{short-publishers}{%
-    \renewcommand{\DefinePublisher}[4]{%
-        \bib*{#1}{publisher}{%
-            publisher={#2},%
-            address={#4},
-        }%
-    }%
-}{}
-\IfOption{short-months}{%
-    \renewcommand{\bib@monthname}{%
-        \ifcase 0\bib@month
-        \or Jan.\or Feb.\or Mar.\or Apr.\or May\or June\or
-          July\or Aug.\or Sep.\or Oct.\or Nov.\or Dec.\or
-          Winter\or Spring\or Summer\or Fall\else Unknown Month%
-        \fi
-    }%
-}{}
-\IfOption{y2k}{%
-    \IfOption{alphabetic}{%
-        \def\year@short#1\@nil{#1}%
-        \def\bibtex@style{amsry}%
-    }{%
-        \amsrefs@warning@nl{%
-            The 'y2k' option can only be used with the^^J%
-            'alphabetic' option%
-        }%
-}
-}{}
-\IfOption{bibtex-style}{%
-    \RequirePackage{amsbst}
-}{}
-\IfOption{author-year}{}{\PopCatcodes \endinput}
-\def\generate@label{%
-    \ifx\bib'label\@empty
-        \begingroup
-            \global\let\previous@stem\current@stem
-            \global\let\current@stem\@empty
-            \global\let\previous@year\current@year
-            \global\let\current@year\bib@year
-            \@apply\auto@protect\amsrefs@textsymbols
-            \@apply\auto@protect\amsrefs@textaccents
-            \def\name##1{\@nx\name{\lnscan@a##1,\@nil}}%
-            \auto@protect\etaltext
-            \normalize@edef\current@stem{\current@primary}%
-            \xdef\current@stem{\current@stem}%
-            \calc@alpha@suffix
-            \edef\@tempa{%
-                \def\@nx\cite@label{\current@stem}%
-                \def\@nx\bib@label@year{%
-                    \current@year
-                    \alpha@label@suffix
-                }%
-            }
-        \@xp\endgroup
-        \@tempa
-    \fi
-}
-\def\lnscan@a#1,#2\@nil{#1}
-\def\citesel@author#1#2#3#4#5{\PrintCiteNames{#3}}
-\def\citesel@authoryear#1#2#3#4#5{\PrintCNY{#3}{#4}}
-\def\citesel@object#1#2#3#4#5{\PrintCiteNames{#3} \citeleft#4}
-\let\citesel\citesel@authoryear
-\def\numeric@refs{01}%
-\def\citeleft{(}%
-\def\citeright{)}%
-\def\@citeleft{\ifx\citesel\citesel@object\else\citeleft\fi}%
-\def\citepunct{; }
-\let\BibLabel\@empty
-\let\process@citelist\process@citelist@unsorted
-\DeclareRobustCommand{\ycite}[1]{%
-    \star@{\cite@a\citesel@year{#1}}{}%
-}
-\DeclareRobustCommand{\ycites}[1]{%
-    \begingroup
-        \def\citepunct{, }%
-        \let\citesel\citesel@year
-        \cites{#1}%
-    \endgroup
-}
-\DeclareRobustCommand{\ocite}[1]{%
-    \star@{\cite@a\citesel@object{#1}}{}%
-}
-\DeclareRobustCommand{\ocites}[1]{%
-    \begingroup
-        \let\@citelist\@ocitelist
-        \cites{#1}%
-    \endgroup
-}
-\def\@ocitelist#1{%
-    \PrintSeries{\InnerCite}%
-        {\ocite}%
-        {}{ and \ocite}%
-        {,}{ \ocite}%
-        {,}{ and \ocite}%
-        {}%
-        {#1}%
-        {}%
-}
-\DeclareRobustCommand{\citeauthor}[1]{%
-    \star@{\cite@a\citesel@author{#1}}{}%
-}
-\DeclareRobustCommand{\citeauthory}[1]{%
-    \citeauthor{#1} \ycite{#1}%
-}
-\DeclareRobustCommand{\fullcite}[1]{%
-    \begingroup
-        \let\print@citenames\CiteNamesFull
-        \star@{\cite@a\citesel@authoryear{#1}}{}%
-    \endgroup
-}
-\DeclareRobustCommand{\fullocite}[1]{%
-    \begingroup
-        \let\print@citenames\CiteNamesFull
-        \star@{\cite@a\citesel@object{#1}}{}%
-    \endgroup
-}
-\def\set@firstname#1{%
-    \set@name{#1}\setbib@nameinverted
-}
-\def\PrintCNY#1#2{%
-    \PrintCiteNames{#1}%
-    \@ifnotempty{#2}{\@addpunct{,} #2}%
-}
-\def\PrintCiteNames#1{%
-    \leavevmode
-    \def\@tempa{#1}%
-    \ifx\@tempa\prev@names
-    \else
-        \gdef\prev@names{#1}%
-        \@xp\ifx\@car#1.\@nil\CitePrintUndefined
-            #1\relax
-        \else
-            \print@citenames{#1}%
-        \fi
-    \fi
-}
-\newcommand{\CiteNames}[1]{%
-    \PrintSeries{\name}%
-        {}%
-        {}{ and }%
-        {}{\@gobble}%
-        {}{ \etaltext\@\@gobble}%
-        {}%
-        {#1}%
-        {}%
-}
-\let\print@citenames\CiteNames
-\newcommand{\CiteNamesFull}[1]{%
-    \PrintSeries{\name}%
-        {}%
-        {}{ and }%
-        {,}{ }%
-        {,}{ and }%
-        {}%
-        {#1}%
-        {}%
-}
-\renewcommand{\PrintDate}[1]{\bib@label@year}
-\def\print@date{%
-    \IfEmptyBibField{date}{%
-        \IfEmptyBibField{year}{\BibField{status}}{\bib@year}%
-    }{%
-        \bib@year
-    }%
-}
-\BibSpec{article}{%
-    +{}  {\PrintAuthors}                {author}
-    +{.} { \PrintDate}                  {date}
-    +{.} { \textit}                     {title}
-    +{.} { }                            {part}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintContributions}         {contribution}
-    +{.} { \PrintPartials}              {partial}
-    +{,} { }                            {journal}
-    +{}  { \textbf}                     {volume}
-    +{,} { \issuetext}                  {number}
-    +{,} { \eprintpages}                {pages}
-    +{,} { }                            {status}
-    +{,} { \PrintDOI}                   {doi}
-    +{,} { available at \eprint}        {eprint}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-
-\BibSpec{book}{%
-    +{}  {\PrintPrimary}                {transition}
-    +{.} { \PrintDate}                  {date}
-    +{.} { \textit}                     {title}
-    +{.} { }                            {part}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintEdition}               {edition}
-    +{}  { \PrintEditorsB}              {editor}
-    +{,} { \PrintTranslatorsC}          {translator}
-    +{,} { \PrintContributions}         {contribution}
-    +{,} { }                            {series}
-    +{,} { \voltext}                    {volume}
-    +{,} { }                            {publisher}
-    +{,} { }                            {organization}
-    +{,} { }                            {address}
-    +{,} { }                            {status}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-
-\BibSpec{collection.article}{%
-    +{}  {\PrintAuthors}                {author}
-    +{.} { \PrintDate}                  {date}
-    +{.} { \textit}                     {title}
-    +{.} { }                            {part}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintContributions}         {contribution}
-    +{,} { \PrintConference}            {conference}
-    +{}  {\PrintBook}                   {book}
-    +{,} { }                            {booktitle}
-    +{,} { pp.~}                        {pages}
-    +{,} { }                            {status}
-    +{,} { \PrintDOI}                   {doi}
-    +{,} { available at \eprint}        {eprint}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-
-\BibSpec{report}{%
-    +{}  {\PrintPrimary}                {transition}
-    +{.} { \PrintDate}                  {date}
-    +{.} { \textit}                     {title}
-    +{.} { }                            {part}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintEdition}               {edition}
-    +{,} { \PrintContributions}         {contribution}
-    +{,} { Technical Report }           {number}
-    +{,} { }                            {series}
-    +{,} { }                            {organization}
-    +{,} { }                            {address}
-    +{,} { \eprint}                     {eprint}
-    +{,} { }                            {status}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-
-\BibSpec{thesis}{%
-    +{}  {\PrintAuthors}                {author}
-    +{.} { \PrintDate}                  {date}
-    +{.} { \textit}                     {title}
-    +{:} { \textit}                     {subtitle}
-    +{,} { \PrintThesisType}            {type}
-    +{,} { }                            {organization}
-    +{,} { }                            {address}
-    +{,} { \eprint}                     {eprint}
-    +{,} { }                            {status}
-    +{}  { \parenthesize}               {language}
-    +{}  { \PrintTranslation}           {translation}
-    +{;} { \PrintReprint}               {reprint}
-    +{.} { }                            {note}
-    +{.} {}                             {transition}
-    +{}  {\SentenceSpace \PrintReviews} {review}
-}
-\PopCatcodes
-\endinput
-%%
-%% End of file `amsrefs.sty'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/amstex.sty b/Master/texmf-dist/tex/latex/amslatex/amstex.sty
deleted file mode 100644
index f67435c5829..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/amstex.sty
+++ /dev/null
@@ -1,2043 +0,0 @@
-%%% ====================================================================
-%%%  @LaTeX-file{
-%%%     filename  = "amstex.sty",
-%%%     version   = "1.2f",
-%%%     date      = "1999/11/15",
-%%%     time      = "14:07:07 EST",
-%%%     checksum  = "05218 2043 3020 71018",
-%%%     author    = "American Mathematical Society",
-%%%     copyright = "Copyright 1995, 1999 American Mathematical Society,
-%%%                  all rights reserved.  Copying of this file is
-%%%                  authorized only if either:
-%%%                  (1) you make absolutely no changes to your copy,
-%%%                  including name; OR
-%%%                  (2) if you do make changes, you first rename it
-%%%                  to some other name.",
-%%%     address   = "American Mathematical Society,
-%%%                  Technical Support,
-%%%                  Electronic Products and Services,
-%%%                  P. O. Box 6248,
-%%%                  Providence, RI 02940,
-%%%                  USA",
-%%%     telephone = "401-455-4080 or (in the USA and Canada)
-%%%                  800-321-4AMS (321-4267)",
-%%%     FAX       = "401-331-3842",
-%%%     email     = "tech-support@math.ams.org (Internet)",
-%%%     keywords  = "latex, amslatex, ams-latex, math, amstex, ams-tex",
-%%%     supported = "yes",
-%%%     abstract  = "This package provides a variety of extra
-%%%                  mathematical features, largely derived from
-%%%                  AMS-\TeX{}. It was superseded in 1995 by the
-%%%                  amsmath package.",
-%%%     docstring = "The checksum field above contains a CRC-16 checksum
-%%%                  as the first value, followed by the equivalent of
-%%%                  the standard UNIX wc (word count) utility output of
-%%%                  lines, words, and characters.  This is produced by
-%%%                  Robert Solovay's checksum utility.",
-%%%  }
-%%% ====================================================================
-%    This file was generated from version 1.2beta of amstex.dtx and then
-%    underwent additional hand-editing.
-\if@compatibility \else \catcode`\%=9 \fi
-%\PackageError{amstex}{%
-%Package `amstex' is obsolete, substituting `amsmath'}{You
-%should use \string\usepackage{amsmath} instead. If
-%that does not give satisfactory results, rename your previous copy
-%of amstex.sty to amstex12beta.sty and call it with
-%\string\usepackage{amstex12beta}.}
-%\catcode`\%=14 \relax \input{amsmath.sty}\endinput
-%
-\ProvidesPackage{amstex}[1999/11/15 v1.2f AMS extra math features]
-\let\@amsfonts=T
-\DeclareOption{noamsfonts}{\let\@amsfonts=F}
-\DeclareOption{psamsfonts}{\let\@amsfonts=P}
-\DeclareOption{intlimits}{\let\ilimits@\displaylimits}
-\DeclareOption{nointlimits}{\let\ilimits@\nolimits}
-\DeclareOption{sumlimits}{\let\slimits@\displaylimits}
-\DeclareOption{nosumlimits}{\let\slimits@\nolimits}
-\DeclareOption{namelimits}{\let\nlimits@\displaylimits}
-\DeclareOption{nonamelimits}{\let\nlimits@\nolimits}
-\newif\ifctagsplit@
-\newif\iftagsleft@
-\DeclareOption{leqno}{\tagsleft@true}
-\DeclareOption{reqno}{\tagsleft@false}
-\DeclareOption{centertags}{\ctagsplit@true}
-\DeclareOption{tbtags}{\ctagsplit@false}
-\newif\if@fleqn
-\newskip\@mathmargin
-\@mathmargin\@centering
-\DeclareOption{fleqn}{%
-    \@fleqntrue
-    \@mathmargin\m@ne sp
-    \AtBeginDocument{%
-        \ifdim\@mathmargin=\m@ne sp
-            \@mathmargin\leftmargini
-        \fi
-    }%
-}
-\DeclareOption{righttag}{\tagsleft@false}
-\DeclareOption{ctagsplt}{\ctagsplit@true}
-\DeclareOption{intlim}{\let\ilimits@\displaylimits}
-\DeclareOption{nosumlim}{\let\slimits@\nolimits}
-\DeclareOption{nonamelm}{\let\nlimits@\nolimits}
-\ExecuteOptions{nointlimits,sumlimits,namelimits,centertags}
-\ProcessOptions
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% In this section \RequirePackage statements were replaced with the
-%% contents of the referenced files.
-%%%     filename        = "amsgen.dtx",
-%%%     version         = "1.2beta",
-%%%     date            = "1994/12/13",
-\providecommand{\@saveprimitive}[2]{\begingroup\escapechar`\\\relax
-  \edef\@tempa{\string#1}\edef\@tempb{\meaning#1}%
-  \ifx\@tempa\@tempb \global\let#2#1%
-  \else
-    \edef\@tempb{\meaning#2}%
-    \ifx\@tempa\@tempb
-    \else
-      \@latex@error{Unable to properly define \string#2; primitive
-      \noexpand#1no longer primitive}\@eha
-    \fi
-  \fi
-  \endgroup}
-\let\@xp=\expandafter
-\let\@nx=\noexpand
-\newtoks\@emptytoks
-\def\@oparg#1[#2]{\@ifnextchar[{#1}{#1[#2]}}
-\def\@ifempty#1{\@xifempty#1@@..\@nil}
-\long\def\@xifempty#1#2@#3#4#5\@nil{%
-  \ifx#3#4\@xp\@firstoftwo\else\@xp\@secondoftwo\fi}
-\long\def\@ifnotempty#1{\@ifempty{#1}{}}
-\def\FN@{\futurelet\@let@token}
-\def\DN@{\def\next@}
-\def\RIfM@{\relax\ifmmode}
-\def\setboxz@h{\setbox\z@\hbox}
-\def\wdz@{\wd\z@}
-\def\boxz@{\box\z@}
-\def\relaxnext@{\let\@let@token\relax}
-\def\new@ifnextchar#1#2#3{%
-  \let\@tempe #1\def\@tempa{#2}\def\@tempb{#3}\futurelet
-    \@tempc\new@ifnch}
-\def\new@ifnch{\ifx\@tempc \@tempe \let\@tempd\@tempa
-             \else\let\@tempd\@tempb\fi\@tempd}
-\def\new@ifstar#1#2{\new@ifnextchar *{\def\@tempa*{#1}\@tempa}{#2}}
-\@ifundefined{every@math@size}{%
-\let\every@math@size=\every@size
-\def\glb@settings{%
-     \expandafter\ifx\csname S@\f@size\endcsname\relax
-       \calculate@math@sizes
-     \fi
-     \csname S@\f@size\endcsname
-      \ifmath@fonts
-        \begingroup
-          \escapechar\m@ne
-          \csname mv@\math@version \endcsname
-          \globaldefs\@ne
-          \let \glb@currsize \f@size
-          \math@fonts
-        \endgroup
-        \the\every@math@size
-      \else
-      \fi
-}
-\def\set@fontsize#1#2#3{%
-    \@defaultunits\@tempdimb#2pt\relax\@nnil
-    \edef\f@size{\strip@pt\@tempdimb}%
-    \@defaultunits\@tempskipa#3pt\relax\@nnil
-    \edef\f@baselineskip{\the\@tempskipa}%
-    \edef\f@linespread{#1}%
-    \let\baselinestretch\f@linespread
-      \def\size@update{%
-        \baselineskip\f@baselineskip\relax
-        \baselineskip\f@linespread\baselineskip
-        \normalbaselineskip\baselineskip
-        \setbox\strutbox\hbox{%
-          \vrule\@height.7\baselineskip
-                \@depth.3\baselineskip
-                \@width\z@}%
-%%%     \the\every@size
-        \let\size@update\relax}%
-  }
-}{}% end \@ifundefined test
-\newdimen\ex@
-\addto@hook\every@math@size{\compute@ex@}
-\def\compute@ex@{%
-  \begingroup
-  \dimen@-\f@size\p@
-  \ifdim\dimen@<-20\p@
-    \global\ex@ 1.5\p@
-  \else
-    \advance\dimen@10\p@ \multiply\dimen@\tw@
-    \edef\@tempa{\ifdim\dimen@>\z@ -\fi}%
-    \dimen@ \ifdim\dimen@<\z@ -\fi \dimen@
-    \advance\dimen@-\@m sp % fudge factor
-    \vfuzz\p@
-    \def\do{\ifdim\dimen@>\z@
-      \vfuzz=.97\vfuzz
-      \advance\dimen@ -\p@
-      \@xp\do \fi}%
-    \do
-    \dimen@\p@ \advance\dimen@-\vfuzz
-    \global\ex@\p@
-    \global\advance\ex@ \@tempa\dimen@
-  \fi
-  \endgroup
-}
-\def\@addpunct#1{\ifnum\spacefactor>\@m \else#1\fi}
-\def\frenchspacing{\sfcode`\.1006\sfcode`\?1005\sfcode`\!1004%
-  \sfcode`\:1003\sfcode`\;1002\sfcode`\,1001 }
-\def\@mathmeasure#1#2#3{\setbox#1\hbox{\frozen@everymath\@emptytoks
-  \m@th$#2#3$}}
-\def\nomath@env{\PackageError{amstex}{%
-  \string\begin{\@currenvir} allowed only in paragraph mode%
-}\@ehb% "You've lost some text"
-}
-\def\Invalid@@{Invalid use of \string}
-\def\nonmatherr@#1{\PackageError{amsfonts}%
-    {\noexpand#1allowed only in math mode}\@ehd}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%%%     filename        = "amstext.dtx",
-%%%     version         = "1.2beta",
-%%%     date            = "1994/12/13",
-\DeclareRobustCommand{\text}{%
-  \ifmmode\expandafter\text@\else\expandafter\mbox\fi}
-\let\nfss@text\text
-\def\text@#1{\mathchoice
-  {\textdef@\displaystyle\f@size{#1}}%
-  {\textdef@\textstyle\tf@size{\firstchoice@false #1}}%
-  {\textdef@\textstyle\sf@size{\firstchoice@false #1}}%
-  {\textdef@\textstyle \ssf@size{\firstchoice@false #1}}%
-  \check@mathfonts
-}
-\def\textdef@#1#2#3{\hbox{{%
-                    \everymath{#1}%
-                    \let\f@size#2\selectfont
-                    #3}}}
-\newif\iffirstchoice@
-\firstchoice@true
-\def\stepcounter#1{%
-  \iffirstchoice@
-     \global\expandafter\advance\csname c@#1\endcsname \@ne
-     \begingroup
-         \let\@elt\@stpelt
-         \csname cl@#1\endcsname
-     \endgroup
-  \fi}
-\toks@{\iffirstchoice@\else\@xp\@gobblefour\fi\protect}
-\edef\GenericInfo{\the\toks@
-  \@xp\@nx\csname GenericInfo \endcsname}
-\edef\GenericWarning{\the\toks@
-  \@xp\@nx\csname GenericWarning \endcsname}
-\toks@{\iffirstchoice@\else
-  \@xp\@xp\@xp\@gobblefour
-  \@xp\@gobbletwo\fi\protect}
-\edef\GenericError{\the\toks@
-  \@xp\@nx\csname GenericError \endcsname}
-\def\label#1{\@bsphack\iffirstchoice@\if@filesw {\let\thepage\relax
-   \def\protect{\noexpand\noexpand\noexpand}%
-\xdef\@gtempa{\write\@auxout{\string
-      \newlabel{#1}{{\@currentlabel}{\thepage}}}}}\@gtempa
-   \if@nobreak \ifvmode\nobreak\fi\fi\fi\fi\@esphack}
-\begingroup \catcode`\"=12
-\gdef\mathhexbox#1#2#3{\text{$\m@th\mathchar"#1#2#3$}}
-\endgroup
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%%%     filename        = "amsfonts.dtx",
-%%%     version         = "1.2beta",
-%%%     date            = "1994/12/13",
-\newbox\Mathstrutbox@
-\setbox\Mathstrutbox@=\hbox{}
-\def\Mathstrut@{\copy\Mathstrutbox@}
-\addto@hook\every@math@size{\setbox\z@\hbox{\normalfont(}%
-  \ht\Mathstrutbox@\ht\z@ \dp\Mathstrutbox@\dp\z@}
-\newbox\strutbox@
-\def\strut@{\copy\strutbox@}
-\addto@hook\every@math@size{%
-  \global\setbox\strutbox@\hbox{\lower.5\normallineskiplimit
-         \vbox{\kern-\normallineskiplimit\copy\strutbox}}}
-\def\big{\bBigg@\@ne}
-\def\Big{\bBigg@{1.5}}
-\def\bigg{\bBigg@\tw@}
-\def\Bigg{\bBigg@{2.5}}
-\def\bBigg@#1#2{%
-   {%
-    \hbox{$\left#2\vcenter to#1\big@size{}\right.%
-           \n@space
-     $}}}
-\addto@hook\every@math@size{%
-  \global\big@size 1.2\ht\Mathstrutbox@
-  \global\advance\big@size 1.2\dp\Mathstrutbox@ }
-\newdimen\big@size
-%% msam, msbm, eufm fonts dealt with at end of file
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%%%     filename        = "amsbsy.dtx",
-%%%     version         = "1.2beta",
-%%%     date            = "1994/10/27",
-\DeclareRobustCommand{\boldsymbol}[1]{%
-  \begingroup
-  \let\@nomath\@gobble \mathversion{bold}%
-  \math@atom{#1}{%
-  \mathchoice%
-    {\hbox{$\m@th\displaystyle#1$}}%
-    {\hbox{$\m@th\textstyle#1$}}%
-    {\hbox{$\m@th\scriptstyle#1$}}%
-    {\hbox{$\m@th\scriptscriptstyle#1$}}}%
-  \endgroup}
-\def\math@atom#1#2{%
-   \binrel@{#1}\binrel@@{#2}}
-\DeclareRobustCommand{\pmb}{%
-  \ifmmode\else \expandafter\pmb@@\fi\mathpalette\pmb@}
-\def\pmb@@#1#2#3{\leavevmode\setboxz@h{#3}%
-   \dimen@-\wdz@
-   \kern-.5\ex@\copy\z@
-   \kern\dimen@\kern.25\ex@\raise.4\ex@\copy\z@
-   \kern\dimen@\kern.25\ex@\box\z@
-}
-\newdimen\pmbraise@
-\def\pmb@#1#2{\setbox8\hbox{$\m@th#1{#2}$}%
-  \setboxz@h{$\m@th#1\mkern.5mu$}\pmbraise@\wdz@
-  \binrel@{#2}%
-  \dimen@-\wd8 %
-  \binrel@@{%
-    \mkern-.8mu\copy8 %
-    \kern\dimen@\mkern.4mu\raise\pmbraise@\copy8 %
-    \kern\dimen@\mkern.4mu\box8 }%
-}
-\def\binrel@#1{\begingroup
-  \setboxz@h{\thinmuskip0mu
-    \medmuskip\m@ne mu\thickmuskip\@ne mu
-    \setbox\tw@\hbox{$#1\m@th$}\kern-\wd\tw@
-    ${}#1{}\m@th$}%
-  \edef\@tempa{\endgroup\let\noexpand\binrel@@
-    \ifdim\wdz@<\z@ \mathbin
-    \else\ifdim\wdz@>\z@ \mathrel
-    \else \relax\fi\fi}%
-  \@tempa
-}
-\let\binrel@@\relax
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\def\AmSTeX{\protect\AmS-\protect\TeX{}}
-\def\AmS{{\protect\AmSfont
-  A\kern-.1667em\lower.5ex\hbox{M}\kern-.125emS}}
-\def\AmSfont{%
-  \usefont{OMS}{cmsy}{\if\@xp\@car\f@series\@nil bb\else m\fi}{n}}
-\def\prim@s{\prime\futurelet\@let@token\pr@m@s}
-\def\pr@m@s{%
-  \ifx\@let@token'\DN@##1{\prim@s}\else\let\next@\egroup\fi\next@}
-\let\@prime=\prime
-\renewcommand{\prime}{{\kern\z@\@prime}}
-\DeclareRobustCommand{\mspace}[3]{%
-  \ifmmode\mskip#1#2\else\kern#1#3\fi\relax}
-\renewcommand{\,}{\mspace+\thinmuskip{.1667em}}
-\let\thinspace\,
-\renewcommand{\!}{\mspace-\thinmuskip{.1667em}}
-\let\negthinspace\!
-\renewcommand{\:}{\mspace+\medmuskip{.2222em}}
-\let\medspace\:
-\newcommand{\negmedspace}{\mspace-\medmuskip{.2222em}}
-\renewcommand{\;}{\mspace+\thickmuskip{.2777em}}
-\let\thickspace\;
-\newcommand{\negthickspace}{\mspace-\thickmuskip{.2777em}}
-\def\implies{\DOTSB\;\Longrightarrow\;}
-\def\impliedby{\DOTSB\;\Longleftarrow\;}
-\begingroup \catcode`\"=12 % in case activated by a preceding package
-\gdef\And{\DOTSB\;\mathchar"3026 \;}
-\gdef\lvert{\delimiter"426A30C }
-\gdef\rvert{\delimiter"526A30C }
-\gdef\lVert{\delimiter"426B30D }
-\gdef\rVert{\delimiter"526B30D }
-\endgroup % restore "
-\DeclareRobustCommand{\frac}{\new@ifnextchar[{\frfrac{}}{\frfrac{}[]}}
-\def\frfrac#1[#2]#3#4{\def\next@{#2}%
-  \ifx\next@\@empty \def\next@{#1{#3\over#4}}%
-  \else \def\next@{{#1{#3\above#2\relax#4}}}%
-  \fi
-  \next@}
-\def\dfrac{\protect\frfrac\displaystyle[]}
-\def\tfrac{\protect\frfrac\textstyle[]}
-\DeclareRobustCommand{\binom}{\frbinom{}}
-\def\frbinom#1#2#3{{#1{#2\atopwithdelims()#3}}}
-\def\dbinom{\protect\frbinom\displaystyle}
-\def\tbinom{\protect\frbinom\textstyle}
-\def\colon{\nobreak\mskip2mu\mathpunct{}\nonscript
-  \mkern-\thinmuskip{:}\mskip6muplus1mu\relax}
-\begingroup \catcode`\"=12
-\DeclareMathSymbol{\coprod@}{\mathop}{largesymbols}{"60}
-\gdef\coprod{\DOTSB\coprod@\slimits@}
-\DeclareMathSymbol{\bigvee@}{\mathop}{largesymbols}{"57}
-\gdef\bigvee{\DOTSB\bigvee@\slimits@}
-\DeclareMathSymbol{\bigwedge@}{\mathop}{largesymbols}{"56}
-\gdef\bigwedge{\DOTSB\bigwedge@\slimits@}
-\DeclareMathSymbol{\biguplus@}{\mathop}{largesymbols}{"55}
-\gdef\biguplus{\DOTSB\biguplus@\slimits@}
-\DeclareMathSymbol{\bigcap@}{\mathop}{largesymbols}{"54}
-\gdef\bigcap{\DOTSB\bigcap@\slimits@}
-\DeclareMathSymbol{\bigcup@}{\mathop}{largesymbols}{"53}
-\gdef\bigcup{\DOTSB\bigcup@\slimits@}
-\DeclareMathSymbol{\prod@}{\mathop}{largesymbols}{"51}
-\gdef\prod{\DOTSB\prod@\slimits@}
-\DeclareMathSymbol{\sum@}{\mathop}{largesymbols}{"50}
-\gdef\sum{\DOTSB\sum@\slimits@}
-\DeclareMathSymbol{\bigotimes@}{\mathop}{largesymbols}{"4E}
-\gdef\bigotimes{\DOTSB\bigotimes@\slimits@}
-\DeclareMathSymbol{\bigoplus@}{\mathop}{largesymbols}{"4C}
-\gdef\bigoplus{\DOTSB\bigoplus@\slimits@}
-\DeclareMathSymbol{\bigodot@}{\mathop}{largesymbols}{"4A}
-\gdef\bigodot{\DOTSB\bigodot@\slimits@}
-\DeclareMathSymbol{\bigsqcup@}{\mathop}{largesymbols}{"46}
-\gdef\bigsqcup{\DOTSB\bigsqcup@\slimits@}
-\endgroup
-\def\dddot#1{{\mathop{#1}\limits^{\vbox to-1.4\ex@{\kern-\tw@\ex@
- \hbox{\normalfont ...}\vss}}}}
-\def\ddddot#1{{\mathop{#1}\limits^{\vbox to-1.4\ex@{\kern-\tw@\ex@
- \hbox{\normalfont....}\vss}}}}
-\def~{\nobreakspace}
-\DeclareRobustCommand{\nobreakspace}{\unskip\nobreak\ \ignorespaces}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\newif\if@display
-\everydisplay\expandafter{\the\everydisplay \@displaytrue}
-\def\int{\DOTSI\intop\ilimits@}
-\def\oint{\DOTSI\ointop\ilimits@}
-\def\intkern@{\mkern-6mu\mathchoice{\mkern-3mu}{}{}{}}
-\def\intdots@{\mathchoice{\@cdots}%
- {{\cdotp}\mkern1.5mu{\cdotp}\mkern1.5mu{\cdotp}}%
- {{\cdotp}\mkern1mu{\cdotp}\mkern1mu{\cdotp}}%
- {{\cdotp}\mkern1mu{\cdotp}\mkern1mu{\cdotp}}}
-
-\def\iint{\DOTSI\protect\ints@\tw@}
-\def\iiint{\DOTSI\protect\ints@\thr@@}
-\def\iiiint{\DOTSI\protect\ints@{4}}
-\def\idotsint{\DOTSI\protect\ints@\z@}
-
-\def\ints@#1{%
-  \mkern-7mu\mathchoice{\mkern-2mu}{}{}{}%
-  \mathop{\mkern7mu\mathchoice{\mkern2mu}{}{}{}%
-    \intop\ifnum#1=\z@\intdots@
-    \else\intkern@\fi
-    \ifnum#1>\tw@\intop\intkern@\fi
-    \ifnum#1>\thr@@\intop\intkern@\fi
-    \intop
-  }\ilimits@
-}
-\def\nolimits@{%
-  \DN@{\nolimits\ifx\@let@token\limits\expandafter\@gobble\fi}%
-  \FN@\next@}
-\begingroup \catcode`\"=12
-\gdef\newmcodes@{\mathcode`\'39\mathcode`\*42\mathcode`\."613A%
- \mathcode`\-45\mathcode`\/47\mathcode`\:"603A\relax}
-\endgroup
-\DeclareRobustCommand{\operatorname}{%
-  \@ifstar{\qopname\newmcodes@ n}%
-          {\qopname\newmcodes@{no}}}%
-\DeclareRobustCommand{\qopname}[3]{\mathop{#1\kern\z@\operator@font#3}%
-  \csname #2limits@\endcsname}
-\def\arccos{\qopname\relax{no}{arccos}}
-\def\arcsin{\qopname\relax{no}{arcsin}}
-\def\arctan{\qopname\relax{no}{arctan}}
-\def\arg{\qopname\relax{no}{arg}}
-\def\cos{\qopname\relax{no}{cos}}
-\def\cosh{\qopname\relax{no}{cosh}}
-\def\cot{\qopname\relax{no}{cot}}
-\def\coth{\qopname\relax{no}{coth}}
-\def\csc{\qopname\relax{no}{csc}}
-\def\deg{\qopname\relax{no}{deg}}
-\def\det{\qopname\relax n{det}}
-\def\dim{\qopname\relax{no}{dim}}
-\def\exp{\qopname\relax{no}{exp}}
-\def\gcd{\qopname\relax n{gcd}}
-\def\hom{\qopname\relax{no}{hom}}
-\def\inf{\qopname\relax n{inf}}
-\def\injlim{\qopname\relax n{inj\,lim}}
-\def\ker{\qopname\relax{no}{ker}}
-\def\lg{\qopname\relax{no}{lg}}
-\def\lim{\qopname\relax n{lim}}
-\def\liminf{\qopname\relax n{lim\,inf}}
-\def\limsup{\qopname\relax n{lim\,sup}}
-\def\ln{\qopname\relax{no}{ln}}
-\def\log{\qopname\relax{no}{log}}
-\def\max{\qopname\relax n{max}}
-\def\min{\qopname\relax n{min}}
-\def\Pr{\qopname\relax n{Pr}}
-\def\projlim{\qopname\relax n{proj\,lim}}
-\def\sec{\qopname\relax{no}{sec}}
-\def\sin{\qopname\relax{no}{sin}}
-\def\sinh{\qopname\relax{no}{sinh}}
-\def\sup{\qopname\relax n{sup}}
-\def\tan{\qopname\relax{no}{tan}}
-\def\tanh{\qopname\relax{no}{tanh}}
-\def\operator@font{\mathgroup\symoperators}
-\def\operatornamewithlimits{\operatorname*}
-\def\varlim@#1#2{\mathop{\vtop{\ialign{##\crcr
- \hfil$#1\m@th\operator@font lim$\hfil\crcr
- \noalign{\nointerlineskip\kern\ex@}#2#1\crcr
- \noalign{\nointerlineskip\kern-\ex@}\crcr}}}}
-\def\varinjlim{\mathpalette\varlim@\rightarrowfill@}
-\def\varprojlim{\mathpalette\varlim@\leftarrowfill@}
-\def\varliminf{\mathpalette\varliminf@{}}
-\def\varliminf@#1{\mathop{\@@underline{\vrule\@depth.2\ex@\@width\z@
-   \hbox{$#1\m@th\operator@font lim$}}}}
-\def\varlimsup{\mathpalette\varlimsup@{}}
-\def\varlimsup@#1{\mathop{\@@overline
-  {\hbox{$#1\m@th\operator@font lim$}}}}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\def\numberwithin#1#2{\@ifundefined{c@#1}{\@nocounterr{#1}}{%
-  \@ifundefined{c@#2}{\@nocnterr{#2}}{%
-  \@addtoreset{#1}{#2}%
-  \toks@\expandafter\expandafter\expandafter{\csname the#1\endcsname}%
-  \expandafter\xdef\csname the#1\endcsname
-    {\expandafter\noexpand\csname the#2\endcsname
-     .\the\toks@}}}}
-\def\eqref#1{\textup{\tagform@{\ref{#1}}}}
-\def\bmod{\mskip-\medmuskip\mkern5mu\mathbin
-  {\operator@font mod}\penalty900
-  \mkern5mu\mskip-\medmuskip}
-\def\pod#1{\allowbreak\if@display\mkern18mu\else\mkern8mu\fi(#1)}
-\def\pmod#1{\pod{{\operator@font mod}\mkern6mu#1}}
-\def\mod#1{\allowbreak\if@display\mkern18mu
-  \else\mkern12mu\fi{\operator@font mod}\,\,#1}
-\newcommand{\cfrac}[3][c]{{\displaystyle\frac{%
-  \strut\ifx r#1\hfill\fi#2\ifx l#1\hfill\fi}{#3}}%
-  \kern-\nulldelimiterspace}
-\def\lcfrac{\cfrac[l]}
-\def\rcfrac{\cfrac[r]}
-\def\overset#1#2{\binrel@{#2}%
-  \binrel@@{\mathop{\kern\z@#2}\limits^{#1}}}
-\def\underset#1#2{\binrel@{#2}%
-  \binrel@@{\mathop{\kern\z@#2}\limits_{#1}}}
-\def\sideset#1#2#3{%
-  \setbox\z@\hbox{$\displaystyle{\vphantom{#3}}#1{#3}\m@th$}%
-  \setbox\tw@\hbox{$\displaystyle{#3}#2\m@th$}%
-  \hskip\wd\z@\hskip-\wd\tw@\mathop{\hskip\wd\tw@\hskip-\wd\z@
-  {\vphantom{#3}}#1{#3}#2}}
-\renewcommand{\smash}[2][tb]{%
-  \def\smash@{#1}%
-  \ifmmode\expandafter\mathpalette\expandafter\mathsm@sh\else
-        \expandafter\makesm@sh\fi{#2}}
-\def\finsm@sh{\def\mb@t{\ht\z@\z@}\def\mb@b{\dp\z@\z@}%
-  \def\mb@tb{\mb@t\mb@b}%
-  {\csname mb@\smash@\endcsname}%
-  \leavevmode\boxz@}
-\def\rightarrowfill@#1{\m@th\setboxz@h{$#1\relbar$}\ht\z@\z@
-  $#1\copy\z@\mkern-6mu\cleaders
-  \hbox{$#1\mkern-2mu\box\z@\mkern-2mu$}\hfill
-  \mkern-6mu\mathord\rightarrow$}
-\def\leftarrowfill@#1{\m@th\setboxz@h{$#1\relbar$}\ht\z@\z@
-  $#1\mathord\leftarrow\mkern-6mu\cleaders
-  \hbox{$#1\mkern-2mu\copy\z@\mkern-2mu$}\hfill
-  \mkern-6mu\box\z@$}
-\def\leftrightarrowfill@#1{\m@th\setboxz@h{$#1\relbar$}\ht\z@\z@
-  $#1\mathord\leftarrow\mkern-6mu\cleaders
-  \hbox{$#1\mkern-2mu\box\z@\mkern-2mu$}\hfill
-  \mkern-6mu\mathord\rightarrow$}
-\def\overarrow@#1#2#3{\vbox{\ialign{##\crcr#1#2\crcr
- \noalign{\kern-\ex@\nointerlineskip}$\m@th\hfil#2#3\hfil$\crcr}}}
-\def\overrightarrow{\mathpalette{\overarrow@\rightarrowfill@}}
-\def\overleftarrow{\mathpalette{\overarrow@\leftarrowfill@}}
-\def\overleftrightarrow{\mathpalette{\overarrow@\leftrightarrowfill@}}
-\def\underarrow@#1#2#3{%
- \vtop{\ialign{##\crcr$\m@th\hfil#2#3\hfil$\crcr
- \noalign{\nointerlineskip\kern-.5\ex@}#1#2\crcr}}}
-\def\underrightarrow{\mathpalette{\underarrow@\rightarrowfill@}}
-\def\underleftarrow{\mathpalette{\underarrow@\leftarrowfill@}}
-\def\underleftrightarrow{\mathpalette{\underarrow@\leftrightarrowfill@}}
-\let\ifgtest@\iffalse                              % initial value
-\def\gtest@true{\global\let\ifgtest@\iftrue}
-\def\gtest@false{\global\let\ifgtest@\iffalse}
-\let\DOTSI\relax
-\let\DOTSB\relax
-\let\DOTSX\relax
-{\uccode`7=`\\ \uccode`8=`m \uccode`9=`a \uccode`0=`t \uccode`!=`h
- \uppercase{%
-  \gdef\math@#1#2#3#4#5#6\math@{\gtest@false\ifx 7#1\ifx 8#2%
-  \ifx 9#3\ifx 0#4\ifx !#5\xdef\meaning@{#6}\gtest@true
-  \fi\fi\fi\fi\fi}}}
-{\uccode`7=`c \uccode`8=`h \uccode`9=`\"
- \uppercase{\gdef\mathch@#1#2#3#4#5#6\mathch@{\gtest@false
-  \ifx 7#1\ifx 8#2\ifx 9#5\gtest@true\xdef\meaning@{9#6}\fi\fi\fi}}}
-\newcount\classnum@
-\def\getmathch@#1.#2\getmathch@{\classnum@#1 \divide\classnum@4096
- \ifcase\number\classnum@\or\or\gdef\thedots@{\dotsb@}\or
- \gdef\thedots@{\dotsb@}\fi}
-{\uccode`4=`b \uccode`5=`i \uccode`6=`n
- \uppercase{\gdef\mathbin@#1#2#3{\relaxnext@
-  \def\nextii@##1\mathbin@{\ifx\@sptoken\@let@token\gtest@true\fi}%
-  \gtest@false\DN@##1\mathbin@{}%
- \ifx 4#1\ifx 5#2\ifx 6#3\DN@{\FN@\nextii@}\fi\fi\fi\next@}}}
-{\uccode`4=`r \uccode`5=`e \uccode`6=`l
- \uppercase{\gdef\mathrel@#1#2#3{\relaxnext@
-  \def\nextii@##1\mathrel@{\ifx\@sptoken\@let@token\gtest@true\fi}%
- \gtest@false\DN@##1\mathrel@{}%
- \ifx 4#1\ifx 5#2\ifx 6#3\DN@{\FN@\nextii@}\fi\fi\fi\next@}}}
-{\uccode`5=`m \uccode`6=`a \uccode`7=`c
- \uppercase{\gdef\macro@#1#2#3#4\macro@{\gtest@false
-  \ifx 5#1\ifx 6#2\ifx 7#3\gtest@true
-  \xdef\meaning@{\macro@@#4\macro@@}\fi\fi\fi}}}
-\def\macro@@#1->#2\macro@@{#2}
-\newcount\DOTSCASE@
-{\uccode`6=`\\ \uccode`7=`D \uccode`8=`O \uccode`9=`T \uccode`0=`S
- \uppercase{\gdef\DOTS@#1#2#3#4#5{\gtest@false\DN@##1\DOTS@{}%
-  \ifx 6#1\ifx 7#2\ifx 8#3\ifx 9#4\ifx 0#5\let\next@\DOTS@@
-  \fi\fi\fi\fi\fi
-  \next@}}}
-{\uccode`3=`B \uccode`4=`I \uccode`5=`X
- \uppercase{\gdef\DOTS@@#1{\relaxnext@
-  \def\nextii@##1\DOTS@{\ifx\@sptoken\@let@token\gtest@true\fi}%
-  \DN@{\FN@\nextii@}%
-  \ifx 3#1\global\DOTSCASE@\z@\else
-  \ifx 4#1\global\DOTSCASE@\@ne\else
-  \ifx 5#1\global\DOTSCASE@\tw@\else\DN@##1\DOTS@{}%
-  \fi\fi\fi\next@}}}
-{\uccode`5=`\\ \uccode`6=`n \uccode`7=`o \uccode`8=`t
- \uppercase{\gdef\not@#1#2#3#4{\relaxnext@
-  \def\nextii@##1\not@{\ifx\@sptoken\@let@token\gtest@true\fi}%
- \gtest@false\DN@##1\not@{}%
- \ifx 5#1\ifx 6#2\ifx 7#3\ifx 8#4\DN@{\FN@\nextii@}\fi\fi\fi
- \fi\next@}}}
-\def\keybin@{\gtest@true
-  \ifx\@let@token+\else\ifx\@let@token=\else\ifx\@let@token<%
-  \else\ifx\@let@token>\else\ifx\@let@token-\else\ifx\@let@token*%
-  \else\ifx\@let@token:\else\gtest@false\fi\fi\fi\fi\fi\fi\fi}
-\@ifundefined{@ldots}{\def\@ldots{\mathellipsis}}{}
-\DeclareRobustCommand{\dots}{\relax
-  \csname\ifmmode m\else t\fi dots@\endcsname}
-\def\tdots@{\leavevmode\unskip\relaxnext@
- \DN@{$\m@th\@ldots\,
-   \ifx\@let@token,\,$\else\ifx\@let@token.\,$\else\ifx\@let@token;\,$%
-   \else\ifx\@let@token:\,$\else\ifx\@let@token?\,$%
-   \else\ifx\@let@token!\,$\else$ \fi\fi\fi\fi\fi\fi}%
- \ \FN@\next@}
-\def\mdots@{\FN@\mdots@@}
-\def\mdots@@{\gdef\thedots@{\dotso@}%
- \ifx\@let@token\boldsymbol\gdef\thedots@\boldsymbol{\boldsymboldots@}%
- \else\ifx,\@let@token\gdef\thedots@{\dotsc}%
- \else\ifx\not\@let@token\gdef\thedots@{\dotsb@}%
- \else\keybin@
- \ifgtest@\gdef\thedots@{\dotsb@}%
- \else\xdef\meaning@{\meaning\@let@token..........}%
-  \xdef\meaning@@{\meaning@}%
-  \expandafter\math@\meaning@\math@
-  \ifgtest@
-   \expandafter\mathch@\meaning@\mathch@
-   \ifgtest@\expandafter\getmathch@\meaning@\getmathch@\fi
-  \else\expandafter\macro@\meaning@@\macro@
-  \ifgtest@
-   \expandafter\not@\meaning@\not@\ifgtest@\gdef\thedots@{\dotsb@}%
-  \else\expandafter\DOTS@\meaning@\DOTS@
-  \ifgtest@
-   \ifcase\number\DOTSCASE@\gdef\thedots@{\dotsb@}%
-    \or\gdef\thedots@{\dotsi}\else\fi
-  \else\expandafter\math@\meaning@\math@
-  \ifgtest@\expandafter\mathbin@\meaning@\mathbin@
-  \ifgtest@\gdef\thedots@{\dotsb@}%
-  \else\expandafter\mathrel@\meaning@\mathrel@
-  \ifgtest@\gdef\thedots@{\dotsb@}%
-  \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
- \thedots@}
-\def\boldsymboldots@#1{%
- \bold@true\let\@let@token=#1\let\delayed@=#1\mdots@@
- \boldsymbol#1\bold@false}
-\def\@cdots{\mathinner{\cdotp\cdotp\cdotp}}
-\def\dotsi{\!\@cdots}
-\let\dotsb@\@cdots
-\def\rightdelim@{\gtest@true
- \ifx\@let@token)\else
- \ifx\@let@token]\else
- \ifx\@let@token\rbrack\else
- \ifx\@let@token\}\else
- \ifx\@let@token\rbrace\else
- \ifx\@let@token\rangle\else
- \ifx\@let@token\rceil\else
- \ifx\@let@token\rfloor\else
- \ifx\@let@token\rgroup\else
- \ifx\@let@token\rmoustache\else
- \ifx\@let@token\right\else
- \ifx\@let@token\bigr\else
- \ifx\@let@token\biggr\else
- \ifx\@let@token\Bigr\else
- \ifx\@let@token\Biggr\else\gtest@false
- \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi}
-\def\extra@{%
- \rightdelim@\ifgtest@
- \else\ifx\@let@token$\gtest@true
- \else\xdef\meaning@{\meaning\@let@token..........}%
- \expandafter\macro@\meaning@\macro@\ifgtest@
- \expandafter\DOTS@\meaning@\DOTS@
- \ifgtest@
- \ifnum\DOTSCASE@=\tw@\gtest@true\else\gtest@false
- \fi\fi\fi\fi\fi}
-\newif\ifbold@
-\def\dotso@{\relaxnext@
- \ifbold@
-  \let\@let@token\delayed@
-  \def\nextii@{\extra@\@ldots\ifgtest@\,\fi}%
- \else
-  \def\nextii@{\DN@{\extra@\@ldots\ifgtest@\,\fi}\FN@\next@}%
- \fi
- \nextii@}
-\def\extrap@#1{%
- \DN@{#1\,}%
- \ifx\@let@token,\else
- \ifx\@let@token;\else
- \ifx\@let@token.\else\extra@
- \ifgtest@\else
- \let\next@#1\fi\fi\fi\fi\next@}
-\DeclareRobustCommand{\ldots}{\relax
-  \ifmmode \DN@{\extrap@\@ldots}%
-  \else \let\next@\tdots@\fi
-  \FN@\next@}
-\DeclareRobustCommand{\cdots}{\DN@{\extrap@\@cdots}\FN@\next@}
-\let\dotso\ldots
-\let\dotsb\cdots
-\let\dotsm\dotsb
-\DeclareRobustCommand{\dotsc}{%
-  \DN@{\ifx\@let@token;\@ldots\,%
-       \else \ifx\@let@token.\@ldots\,%
-       \else \extra@\@ldots \ifgtest@\,\fi
-       \fi\fi}%
-  \FN@\next@}
-\def\longrightarrow{\DOTSB\relbar\joinrel\rightarrow}
-\def\Longrightarrow{\DOTSB\Relbar\joinrel\Rightarrow}
-\def\longleftarrow{\DOTSB\leftarrow\joinrel\relbar}
-\def\Longleftarrow{\DOTSB\Leftarrow\joinrel\Relbar}
-\def\longleftrightarrow{\DOTSB\leftarrow\joinrel\rightarrow}
-\def\Longleftrightarrow{\DOTSB\Leftarrow\joinrel\Rightarrow}
-\def\mapsto{\DOTSB\mapstochar\rightarrow}
-\def\longmapsto{\DOTSB\mapstochar\longrightarrow}
-\def\hookrightarrow{\DOTSB\lhook\joinrel\rightarrow}
-\def\hookleftarrow{\DOTSB\leftarrow\joinrel\rhook}
-\def\doteq{\DOTSB\buildrel\textstyle.\over=}
-\def\iff{\DOTSB\;\Longleftrightarrow\;}
-\begingroup \catcode`\"=12
-\mathchardef\@tempa="7000
-\ifx\@tempa\Gamma
-  \DeclareMathSymbol{\Gamma}{\mathord}{operators}{"00}
-  \DeclareMathSymbol{\Delta}{\mathord}{operators}{"01}
-  \DeclareMathSymbol{\Theta}{\mathord}{operators}{"02}
-  \DeclareMathSymbol{\Lambda}{\mathord}{operators}{"03}
-  \DeclareMathSymbol{\Xi}{\mathord}{operators}{"04}
-  \DeclareMathSymbol{\Pi}{\mathord}{operators}{"05}
-  \DeclareMathSymbol{\Sigma}{\mathord}{operators}{"06}
-  \DeclareMathSymbol{\Upsilon}{\mathord}{operators}{"07}
-  \DeclareMathSymbol{\Phi}{\mathord}{operators}{"08}
-  \DeclareMathSymbol{\Psi}{\mathord}{operators}{"09}
-  \DeclareMathSymbol{\Omega}{\mathord}{operators}{"0A}
-  \DeclareMathSymbol{\varGamma}{\mathord}{letters}{"00}
-  \DeclareMathSymbol{\varDelta}{\mathord}{letters}{"01}
-  \DeclareMathSymbol{\varTheta}{\mathord}{letters}{"02}
-  \DeclareMathSymbol{\varLambda}{\mathord}{letters}{"03}
-  \DeclareMathSymbol{\varXi}{\mathord}{letters}{"04}
-  \DeclareMathSymbol{\varPi}{\mathord}{letters}{"05}
-  \DeclareMathSymbol{\varSigma}{\mathord}{letters}{"06}
-  \DeclareMathSymbol{\varUpsilon}{\mathord}{letters}{"07}
-  \DeclareMathSymbol{\varPhi}{\mathord}{letters}{"08}
-  \DeclareMathSymbol{\varPsi}{\mathord}{letters}{"09}
-  \DeclareMathSymbol{\varOmega}{\mathord}{letters}{"0A}
-\fi
-\endgroup
-\def\accentclass@{7}
-\def\noaccents@{\def\accentclass@{0}}
-\DeclareFontEncoding{OML}{}{\noaccents@}
-\DeclareFontEncoding{OMS}{}{\noaccents@}
-\edef\@tempa#1#2{\def#1{\mathaccent\string"\noexpand\accentclass@#2 }}
-\@tempa\hat{05E}\@tempa\check{014}\@tempa\tilde{07E}\@tempa\acute{013}
-\@tempa\grave{012}\@tempa\dot{05F}\@tempa\ddot{07F}\@tempa\breve{015}
-\@tempa\bar{016}
-\newcount\skewcharcount@
-\newcount\familycount@
-\def\theskewchar@{\familycount@\@ne
- \global\skewcharcount@\the\skewchar\textfont\@ne
- \ifnum\mathgroup>\m@ne\ifnum\mathgroup<16
-  \global\familycount@\the\mathgroup\relax
-  \global\skewcharcount@\the\skewchar\textfont\the\mathgroup\relax\fi\fi
- \ifnum\skewcharcount@>\m@ne
-  \ifnum\skewcharcount@<128
-  \multiply\familycount@256
-  \global\advance\skewcharcount@\familycount@
-  \global\advance\skewcharcount@28672
-  \mathchar\skewcharcount@\else
-  \global\skewcharcount@\m@ne\fi\else
- \global\skewcharcount@\m@ne\fi}
-\newcount\pointcount@
-\def\getpoints@#1.#2\getpoints@{\pointcount@#1 }
-\newdimen\accentdimen@
-\newcount\accentmu@
-\def\dimentomu@{\multiply\accentdimen@ 100
- \expandafter\getpoints@\the\accentdimen@\getpoints@
- \multiply\pointcount@18
- \divide\pointcount@\@m
- \global\accentmu@\pointcount@}
-\def\mathaccent@#1#2{\ifnum\mathgroup=\m@ne\xdef\thefam@{1}\else
- \xdef\thefam@{\the\mathgroup}\fi
- \accentdimen@\z@
- \setboxz@h{\unbracefonts@$\m@th\mathgroup\thefam@\relax#2$}%
- \ifdim\accentdimen@=\z@\DN@{\mathaccent#1{#2}}%
-  \setbox\@ne\hbox{\unbracefonts@
-    $\m@th\mathgroup\thefam@\relax#2\theskewchar@$}
-  \setbox\tw@\hbox{$\m@th\ifnum\skewcharcount@=\m@ne\else
-   \mathchar\skewcharcount@\fi$}%
-  \global\accentdimen@\wd\@ne\global\advance\accentdimen@-\wdz@
-  \global\advance\accentdimen@-\wd\tw@
-  \global\multiply\accentdimen@\tw@
-  \dimentomu@\global\advance\accentmu@\@ne
- \else\DN@{{\mathaccent#1{#2\mkern\accentmu@ mu}%
-    \mkern-\accentmu@ mu}{}}\fi
- \next@}
-\def\unbracefonts@{\let\math@bgroup\@empty\let\math@egroup\@empty}
-\begingroup \catcode`\"=12
-\def\@tempa#1#2{\gdef#1{\RIfM@\DN@{\mathaccent@{"\accentclass@#2 }}%
-  \else\DN@{\nonmatherr@{#1}}\fi\next@}}
-\@tempa\Hat{05E}\@tempa\Check{014}\@tempa\Tilde{07E}\@tempa\Acute{013}
-\@tempa\Grave{012}\@tempa\Dot{05F}\@tempa\Ddot{07F}\@tempa\Breve{015}
-\@tempa\Bar{016}
-\gdef\Vec{\RIfM@\DN@{\mathaccent@{"017E }}\else
- \DN@{\nonmatherr@\Vec}\fi\next@}
-\endgroup
-\begingroup \catcode`\"=12
-\gdef\@@sqrt#1{\radical"270370 {#1}}
-\endgroup
-\@saveprimitive\overline\@@overline
-\def\overline#1{\@@overline{#1}}
-\def\boxed#1{\fbox{\m@th$\displaystyle#1$}}
-\def\setb@ck{\iffirstchoice@\global\advance\c@equation\m@ne\fi}
-\newcount\dspbrk@lvl
-\dspbrk@lvl=-1
-\interdisplaylinepenalty\@M
-\def\allowdisplaybreaks{%
-  \new@ifnextchar[\allowdspbrks@{\allowdspbrks@[4]}}
-\def\allowdspbrks@[#1]{%
-  \interdisplaylinepenalty\getdsp@pen{#1}}
-\def\getdsp@pen#1{%
-  \ifcase #1\relax \@M
-    \or 9999
-    \or 6999
-    \or 2999
-    \or \z@\fi}
-\def\displaybreak{\PackageError{amstex}{\Invalid@@\displaybreak}\@eha}
-\def\displaybreak@{%
-  \def\displaybreak{\new@ifnextchar[\dspbrk@{\dspbrk@[4]}}}
-\def\dspbrk@[#1]{\global\dspbrk@lvl #1\relax}
-\def\math@cr{{\ifnum0=`}\fi
-  \new@ifstar{\global\@eqpen\@M\math@cr@}%
-          {\global\@eqpen
-             \ifnum\dspbrk@lvl <\z@ \interdisplaylinepenalty
-              \else -\@getpen\dspbrk@lvl \fi
-           \math@cr@}}
-\def\math@cr@{\new@ifnextchar[\math@cr@@{\math@cr@@[\z@]}}
-\def\math@cr@@[#1]{\ifnum0=`{\fi}\math@cr@@@
-  \noalign{\vskip#1\relax}}
-\def\Let@{\let\\\math@cr}
-\def\restore@math@cr{\def\math@cr@@@{\cr}}
-\restore@math@cr
-\def\intertext{\PackageError{amstex}{\Invalid@@\intertext}\@eha}
-\def\intertext@{\def\intertext##1{\noalign{%
-  \penalty\postdisplaypenalty\vskip\belowdisplayskip
-  \vbox{\normalbaselines\noindent##1}%
-  \penalty\predisplaypenalty\vskip\abovedisplayskip}}}
-\newhelp\tag@help
-  {tag cannot be used at this point.\space
-   If you don't understand why^^Jyou should consult
-   the documentation.^^JBut don't worry: just continue, and I'll
-   forget what happened.}
-\def\gobble@tag{\new@ifstar\@gobble\@gobble}
-\def\invalid@tag#1{\PackageError{amstex}{#1}{\the\tag@help}\gobble@tag}
-\def\dft@tag{\invalid@tag{\string\tag\space not allowed here}}
-\def\default@tag{\let\tag\dft@tag}
-\default@tag
-\def\maketag@@{\new@ifstar\maketag@@@\tagform@}
-\def\maketag@@@#1{\hbox{\m@th\normalfont#1}}
-\def\tagform@#1{\maketag@@@{(\ignorespaces#1\unskip)}}
-\def\thetag{\leavevmode\tagform@}
-\def\make@df@tag{\new@ifstar\make@df@tag@@\make@df@tag@@@}
-\def\make@df@tag@@#1{%
-  \def\@currentlabel{#1}%
-  \gdef\df@tag{\maketag@@@{#1}}}
-\def\make@df@tag@@@#1{\@seteqlabel{#1}\gdef\df@tag{\tagform@{#1}}}
-\def\@seteqlabel#1{\toks@\@xp{\p@equation{#1}}%
-  \edef\@currentlabel{\the\toks@}}
-\def\notag{\nonumber}
-\iftagsleft@
-\def\@eqnnum{\hbox to1sp{}\rlap{\normalfont
-    \hskip -\displaywidth\tagform@\theequation}}
-\fi
-
-\let\@adjusttag\@empty
-
-\def\adjusttag#1{\skip@#1\relax\gdef\@adjusttag{#1}}
-
-\def\@movetag{%
-    \ifx\@adjusttag\@empty \else
-        \vskip\@adjusttag\relax
-        \global\let\@adjusttag\@empty
-    \fi
-}
-\def\multilimits@{\bgroup
-  \Let@
-  \restore@math@cr
-  \default@tag
- \baselineskip\fontdimen10 \scriptfont\tw@
- \advance\baselineskip\fontdimen12 \scriptfont\tw@
- \lineskip\thr@@\fontdimen8 \scriptfont\thr@@
- \lineskiplimit\lineskip
- \vbox\bgroup\ialign\bgroup\hfil$\m@th\scriptstyle{##}$\hfil\crcr}
-\def\Sb{_\multilimits@}
-\def\Sp{^\multilimits@}
-\def\endSb{\crcr\egroup\egroup\egroup}
-\let\endSp=\endSb
-\def\smallmatrix{\null\,\vcenter\bgroup
- \Let@\restore@math@cr\default@tag
- \baselineskip6\ex@ \lineskip1.5\ex@ \lineskiplimit\lineskip
- \ialign\bgroup\hfil$\m@th\scriptstyle{##}$\hfil&&\thickspace\hfil
- $\m@th\scriptstyle{##}$\hfil\crcr}
-\def\endsmallmatrix{\crcr\egroup\egroup\,}
-\newcount\c@MaxMatrixCols
-\c@MaxMatrixCols=10
-
-\def\matrix{\hskip -\arraycolsep\array{*\c@MaxMatrixCols c}}
-\def\endmatrix{\endarray \hskip -\arraycolsep}
-\@ifundefined{prepnext@tok}{%
-  \def\@array[#1]#2{%
-    \setbox\@arstrutbox\hbox{\vrule\@height\arraystretch\ht\strutbox
-       \@depth\arraystretch\dp\strutbox \@width\z@}%
-    \@mkpream{#2}\edef\@preamble{\ialign \noexpand\@halignto
-    \bgroup \tabskip\z@ \@arstrut \@preamble \tabskip\z@ \cr}%
-    \let\@startpbox\@@startpbox \let\@endpbox\@@endpbox
-    \if #1t\vtop \else \if#1b\vbox \else \vcenter \fi\fi
-    \bgroup \let\par\@empty
-    \let\@sharp##\let\protect\relax
-    \lineskip\z@\baselineskip\z@\@preamble}%
-\begingroup \lccode`\~=`\@ \catcode`\~=\active % just to be sure!
-\lowercase{%
-\gdef\@xexpast#1*#2#3#4\@@{\begingroup
-  \def~{@}\edef\reserved@a{#1}\@tempcnta#2\relax
-  \ifnum\@tempcnta >\z@
-    \@whilenum\@tempcnta >\z@\do
-      {\edef\reserved@a{\reserved@a#3}\advance\@tempcnta \m@ne}%
-    \let\reserved@b\@xexpast
-  \else \let\reserved@b\@xexnoop\fi
-  \expandafter\reserved@b \reserved@a #4\@@
-  \expandafter\endgroup
-  \expandafter\def\expandafter\reserved@a\expandafter{\reserved@a}%
-  \let\@tempa\reserved@a
-}% End of \@xexpast
-}% End of \lowercase
-\endgroup
-}{}% End of \@ifundefined test.
-\def\pmatrix{\left(\matrix}
-\def\endpmatrix{\endmatrix\right)}
-\def\bmatrix{\left[\matrix}
-\def\endbmatrix{\endmatrix\right]}
-\def\vmatrix{\left|\matrix}
-\def\endvmatrix{\endmatrix\right|}
-\def\Vmatrix{\left\|\matrix}
-\def\endVmatrix{\endmatrix\right\|}
-\let\hdots\@ldots
-\def\hdotsfor#1{\if\noexpand#1[\expandafter\shdots@for\else
-                \hdots@for\@ne{#1}\fi}
-\newmuskip\dotsspace@
-\def\shdots@for#1]{\hdots@for{#1}}
-\def\hdots@for#1#2{\multicolumn{#2}c%
-  {\m@th\dotsspace@1.5mu\mkern-#1\dotsspace@
-   \xleaders\hbox{$\m@th\mkern#1\dotsspace@.\mkern#1\dotsspace@$}%
-           \hfill
-   \mkern-#1\dotsspace@}%
-   }
-\def\cases{\left\{\def\arraystretch{1.2}\hskip-\arraycolsep
-  \array{l@{\quad}l}}
-\def\endcases{\endarray\hskip-\arraycolsep\right.}
-\newif\ifinany@
-\newif\ifinalign@
-\newif\ifingather@
-\newcount\and@
-\newif\iftag@
-\newhelp\andhelp@
-{An extra & here is so disastrous that you should probably exit^^J
-and fix things up.}
-\newif\ifst@rred
-\newtoks\@envbody
-\def\addto@envbody#1{\@envbody\expandafter{\the\@envbody#1}}
-\def\collect@body#1{%
-  \@envbody{}%
-  \def\process@envbody{%
-    \expandafter#1\expandafter{\the\@envbody}}%
-  \expandafter\let\csname\@currenvir\endcsname\collect@@body
-  \csname\@currenvir\endcsname}
-\def\collect@@body#1\end#2{%
-  \def\@tempa{#2}%
-  \ifx\@tempa\@currenvir
-    \addto@envbody{#1}%
-    \expandafter\edef\csname\@currenvir\endcsname
-      {\noexpand\process@envbody\noexpand\end{\@tempa}}%
-  \else
-    \addto@envbody{#1\end{#2}}%
-  \fi
-  \csname\@currenvir\endcsname}
-\newenvironment{aligned}{%
-  \relax\ifmmode\else\nonmatherr@{\begin{aligned}}\fi
-  \null\,\new@ifnextchar[{\aligned@}{\aligned@[c]}%
-}{%
-  \crcr\egroup\egroup
-}
-\def\aligned@[#1]{%
-  \if #1t\vtop \else \if#1b\vbox \else \vcenter \fi\fi
-  \bgroup
-   \Let@\restore@math@cr
-   \default@tag
-   \ifinany@\else\openup\jot\fi
-   \ialign\bgroup\hfil\strut@$\m@th\displaystyle{##}$&%
-    $\m@th\displaystyle{{}##}$\hfil\crcr}
-\newtoks\hashtoks@
-\hashtoks@{#}
-\newcount\atcount@
-\def\doat@#1{\toks@{\hfil\strut@$\m@th
-  \displaystyle{\the\hashtoks@}$&$\m@th\displaystyle
-  {{}\the\hashtoks@}$\hfil}%
- \atcount@#1\relax\advance\atcount@\m@ne
- \loop\ifnum\atcount@>\z@\toks@\expandafter{\the\toks@&\hfil$\m@th
-  \displaystyle{\the\hashtoks@}$&$\m@th
-  \displaystyle{{}\the\hashtoks@}$\hfil}\advance
- \atcount@\m@ne\repeat
- \xdef\preamble@{\the\toks@}\xdef\preamble@@{\preamble@}}
-\newenvironment{alignedat}[2][c]{%
-  \null\,%
-  \if #1t\vtop \else \if#1b\vbox \else \vcenter \fi\fi
-  \bgroup\doat@{#2}\Let@ \restore@math@cr\default@tag
-  \ifinany@\else\openup\jot\fi\ialign\bgroup\span\preamble@@\crcr
-}{%
-  \endaligned
-}
-\newenvironment{gathered}[1][c]{%
-  \relax\ifmmode\else\nonmatherr@{\begin{gathered}}\fi
-  \null\,%
-  \if #1t\vtop \else \if#1b\vbox \else \vcenter \fi\fi
-  \bgroup\Let@\restore@math@cr
-  \ifinany@\else\openup\jot\fi\ialign
-  \bgroup\hfil\strut@$\m@th\displaystyle##$\hfil\crcr
-}{%
-  \endaligned
-}
-\def\tag@in@align{\relax
-  \iftag@\DN@{\invalid@tag{Multiple \string\tag}}\else
-   \global\tag@true
-   \if@eqnsw\global\@eqnswfalse\fi
-   \let\next@\make@df@tag\fi
-  \next@}
-\def\math@cr@@@align{%
-  \if@eqnsw\global\tag@true\fi
-  \iftag@
-   \ifcase\and@
-    \DN@{&&}\else
-    \DN@{&}\fi\else
-    \let\next@\relax\fi
-  \next@
-  \relax
-  \if@eqnsw\tagform@\theequation\stepcounter{equation}\else
-  \iftag@\df@tag\fi\fi
-  \global\@eqnswtrue\cr}
-\def\Tag@{\relax\iftag@\else\firstchoice@true
-  \PackageError{amstex}{%
-  Extra & on this line%
-  }{\the\andhelp@% "An extra & here is disastrous"
-}\fi}
-\newdimen\lwidth@
-\newdimen\rwidth@
-\newdimen\maxlwidth@
-\newdimen\maxrwidth@
-\newdimen\totwidth@
-\def\measure@#1{\lwidth@\z@\rwidth@\z@\maxlwidth@\z@\maxrwidth@\z@
- \global\and@\z@
- \setbox\@ne\vbox{%
-   \everycr{\noalign{\global\tag@false\global\and@\z@}}\Let@
-   \let\tag\gobble@tag
-   \let\notag\@empty \let\nonumber\@empty
-   \firstchoice@false
-    \halign{\setboxz@h{$\m@th\displaystyle{\@lign##}$}%
-     \global\lwidth@\wdz@
-     \ifdim\lwidth@>\maxlwidth@\global\maxlwidth@\lwidth@\fi
-     \global\advance\and@\@ne
-     &\setboxz@h{$\m@th\displaystyle{{}\@lign##}$}%
-     \global\rwidth@\wdz@
-     \ifdim\rwidth@>\maxrwidth@\global\maxrwidth@\rwidth@\fi
-     \global\advance\and@\@ne
-     &\Tag@\@gobble{##}\crcr#1\crcr}}%
- \totwidth@\maxlwidth@\advance\totwidth@\maxrwidth@}
-\def\displ@y{\global\dt@ptrue\openup\jot\m@th
-  \everycr{\noalign{\ifdt@p \global\dt@pfalse
-      \vskip-\lineskiplimit \vskip\normallineskiplimit
-      \else \penalty\@eqpen \fi}}}
-\def\displ@y@{\global\dt@ptrue\openup\jot
-  \everycr{\noalign{\global\tag@false
-                   \global\and@\z@
-                   \global\dspbrk@lvl\m@ne
-                   \ifdt@p\global\dt@pfalse
-      \vskip-\lineskiplimit\vskip\normallineskiplimit\else
-      \penalty\@eqpen\fi}}}
-\def\black@#1{\noalign{\ifdim#1>\displaywidth
- \dimen@\prevdepth\nointerlineskip
- \vskip-\ht\strutbox@\vskip-\dp\strutbox@
- \vbox{\noindent\hbox to#1{\strut@\hfill}}%
- \prevdepth\dimen@
- \fi}}
-\def\align{\ifingather@
-  {\ifnum0=`}\fi
-  \DN@{\@nameuse{align (in \string\gather)}}%
-  \else \ifmmode\nomath@env
-    \DN@{\let\endalign\relax\@gobble}\else
-  $$\stepcounter{equation}%
-  \st@rredfalse\let\next@\align@\fi\fi
- \collect@body\next@}
-\@namedef{align*}{\ifingather@
-  {\ifnum0=`}\fi
-  \DN@{\@nameuse{align* (in \string\gather)}}\else
-   \ifmmode\nomath@env
-    \DN@{\@namedef{endalign*}{}\@gobble}\else
-   $$\st@rredtrue
-  \let\next@\align@\fi\fi
- \collect@body\next@}
-\newdimen\lineht@
-\def\align@{\inalign@true\inany@true
- \displaybreak@\intertext@
- \let\math@cr@@@\math@cr@@@align
- \let\tag\tag@in@align
- \global\and@\z@\global\dspbrk@lvl\m@ne
- \iftagsleft@\DN@{\@nameuse{align }}\else
-  \DN@{\@nameuse{align \space}}\fi\next@}
-\@namedef{align }#1{%
-    \measure@{#1}%
-    \global\and@\z@
-    \global\dspbrk@lvl\m@ne
-    \if@fleqn %%*F
-        \advance\totwidth@\@mathmargin %%*F
-    \fi %%*F
-    \ifdim\totwidth@>\displaywidth
-        \let\displaywidth@\totwidth@
-    \else
-        \let\displaywidth@\displaywidth
-    \fi
-    \ifingather@
-        \everycr{%
-            \noalign{%
-                \global\and@\z@
-                \global\dspbrk@lvl\m@ne
-            }%
-        }%
-    \else
-        \displ@y@
-    \fi
-    \Let@
-    \ifst@rred\else\@seteqlabel\theequation\fi
-    \tabskip\@mathmargin %%*F
-    \dimen@\displaywidth %%*F
-    \if@fleqn %%*F
-        \ifingather@ %%*F
-            \tabskip\z@skip %%*F
-            \advance\dimen@-\@mathmargin %%*F
-        \fi %%*F
-    \fi %%*F
-    \halign to\dimen@\bgroup %%*F
-        \ifst@rred\nonumber\fi
-        \hfil
-        \strut@
-        \setboxz@h{\global\tag@false$\m@th\displaystyle{\@lign##}$}%
-        \global\lwidth@\wdz@
-        \global\lineht@\ht\z@
-        \boxz@
-        \global\advance\and@\@ne
-        \tabskip\z@skip
-       &\setboxz@h{$\m@th\displaystyle{{}\@lign##}$}%
-        \global\rwidth@\wdz@
-        \ifdim\ht\z@>\lineht@
-            \global\lineht@\ht\z@
-        \fi
-        \boxz@
-        \hfil
-        \global\advance\and@\@ne
-        \tabskip\@centering
-       &\kern-\displaywidth@
-        \setboxz@h{\@lign\strut@{##}}%
-        \if@fleqn %%*F
-            \dimen@\@mathmargin %%*F
-            \advance\dimen@\maxlwidth@ %%*F
-            \advance\dimen@-\lwidth@ %%*F
-        \else %%*F
-            \dimen@\displaywidth
-            \advance\dimen@-\totwidth@
-            \divide\dimen@\tw@
-            \advance\dimen@\maxlwidth@
-            \advance\dimen@-\lwidth@
-        \fi %%*F
-        \ifdim\dimen@<\tw@\wdz@
-            \rlap{\vbox{\normalbaselines\boxz@\vbox to\lineht@{}}}%
-        \else
-            \rlap{\boxz@}%
-        \fi
-        \tabskip\displaywidth@
-        \crcr
-        #1%
-}
-\@namedef{align \space}#1{%
-    \measure@{#1}%
-    \if@fleqn %%*F
-        \advance\totwidth@\@mathmargin %%*F
-    \fi %%*F
-    \global\and@\z@
-    \global\dspbrk@lvl\m@ne
-    \ifingather@
-        \everycr{\noalign{\global\and@\z@\global\dspbrk@lvl\m@ne}}%
-    \else
-        \displ@y@
-    \fi
-    \Let@
-    \ifst@rred\else\@seteqlabel\theequation\fi
-    \tabskip\@mathmargin %%*F
-    \dimen@\displaywidth %%*F
-    \if@fleqn %%*
-        \ifingather@ %%*F
-            \tabskip\z@skip %%*F
-            \advance\dimen@-\@mathmargin %%*F
-        \fi %%*F
-    \fi %%*F
-     \halign to\dimen@\bgroup %%*F
-        \ifst@rred\nonumber\fi
-        \hfil
-        \strut@
-        \setboxz@h{\global\tag@false$\m@th\displaystyle{\@lign##}$}%
-        \global\lwidth@\wdz@\boxz@
-        \global\advance\and@\@ne
-        \tabskip\z@skip
-       &\setboxz@h{$\m@th\displaystyle{{}\@lign##}$}%
-        \global\rwidth@\wdz@
-        \boxz@
-        \hfill
-        \global\advance\and@\@ne
-        \tabskip\@centering
-       &\setboxz@h{\@lign\strut@{##}}%
-        \dimen@\displaywidth
-        \advance\dimen@-\totwidth@
-        \divide\dimen@\tw@
-        \advance\dimen@\maxrwidth@
-        \advance\dimen@-\rwidth@
-        \ifdim\dimen@<\tw@\wdz@
-            \llap{\vtop{\@movetag\normalbaselines\null\boxz@}}%%*T
-        \else
-            \llap{\boxz@}%
-        \fi
-        \tabskip\z@skip
-        \crcr#1%
-}
-\def\endalign{\math@cr@@@align
-  \black@\totwidth@
-  \egroup$$\global\@ignoretrue\setb@ck}
-
-\@namedef{endalign*}{\math@cr@@@align\black@\totwidth@
-  \egroup$$\global\@ignoretrue}
-\@namedef{align (in \string\gather)}{%
-  \ifst@rred\stepcounter{equation}\fi
-  \def\endalign{\@nameuse{endalign (in \string\gather)}\ifnum0=`{\fi}}%
-  \vcenter\bgroup\st@rredfalse
-    \collect@body\align@}
-\@namedef{endalign (in \string\gather)}{%
-  \math@cr@@@align\black@\totwidth@
-  \egroup\egroup
-  \ifst@rred\setb@ck\fi% this ifst@rred is set by the enclosing gather
-  \global\tag@false\global\@eqnswfalse}
-\@namedef{align* (in \string\gather)}{%
-  \@namedef{endalign*}{\@nameuse{endalign* (in \string\gather)}%
-                       \ifnum0=`{\fi}}%
-  \vcenter\bgroup\st@rredtrue
-    \collect@body\align@}
-\@namedef{endalign* (in \string\gather)}{%
-  \math@cr@@@align\black@\totwidth@\egroup\egroup
-  \global\tag@false\global\@eqnswfalse}
-\newif\ifxat@
-\def\alignat#1{%
- \ifmmode\nomath@env\DN@{\let\endalignat\relax\@gobble}\else$$%
- \st@rredfalse\stepcounter{equation}\@seteqlabel\theequation
- \DN@{\@nameuse{alignat }#1}\fi
- \collect@body\next@}
-\@namedef{alignat*}#1{%
- \ifmmode\nomath@env\DN@{\@namedef{endalignat*}{}\@gobble}\else$$%
- \st@rredtrue
- \DN@{\@nameuse{alignat }#1}\fi
- \collect@body\next@}
-\newif\ifmeasuring@
-\newbox\savealignat@
-\def\math@cr@@@alignat{%
-  \if@eqnsw\global\tag@true\fi
-  \iftag@
-   \multiply\count@\tw@
-   \xdef\next@{}\loop\ifnum\count@>\and@\xdef\next@{&\next@}%
-    \advance\count@\m@ne\repeat\else
-   \let\next@\relax\fi
-  \next@
-  \relax
-  \if@eqnsw\tagform@\theequation\stepcounter{equation}\else
-  \iftag@\df@tag\fi\fi
-  \global\@eqnswtrue\cr}%
-\@namedef{alignat }#1#2{%
-    \inany@true
-    \xat@false
-    \let\tag\tag@in@align
-    \def\math@cr@@@{\count@#1\relax \math@cr@@@alignat}%
-    \displaybreak@
-    \intertext@
-    \displ@y@
-    \ifst@rred
-        \global\@eqnswfalse
-    \else
-        \global\@eqnswtrue
-    \fi
-    \measuring@true
-    \setbox\savealignat@\hbox{%
-        $\m@th\displaystyle\Let@
-        \attag@{#1}%
-        \vbox{\firstchoice@false\halign{\span\preamble@@\crcr#2\crcr}}$%
-    }%
-    \measuring@false
-    \Let@
-    \attag@{#1}%
-    \tabskip\@mathmargin %%*F
-    \halign to\displaywidth\bgroup
-        \span\preamble@@\crcr
-        #2%
-}
-\def\endalignat{\math@cr@@@\black@{\wd\savealignat@}%
-     \egroup\setb@ck$$\global\@ignoretrue}
-\@namedef{endalignat*}{\math@cr@@@\black@{\wd\savealignat@}\egroup
-  $$\global\@ignoretrue}
-\def\xalignat#1{%
- \ifmmode\nomath@env\DN@{\let\endxalignat\relax\@gobble}\else$$%
- \st@rredfalse\stepcounter{equation}\@seteqlabel\theequation
- \DN@{\@nameuse{xalignat }#1}\fi
- \collect@body\next@}
-\@namedef{xalignat*}#1{%
- \ifmmode\nomath@env\DN@{\@namedef{endxalignat*}{}\@gobble}\else$$%
- \st@rredtrue
- \DN@{\@nameuse{xalignat }#1}\fi
- \collect@body\next@}
-\let\endxalignat=\endalignat
-
-\expandafter\let\csname endxalignat*\expandafter
-  \endcsname\csname endalignat*\endcsname
-\@namedef{xalignat }#1#2{%
-    \inany@true
-    \xat@true
-    \let\tag\tag@in@align
-    \def\math@cr@@@{\count@#1\relax\math@cr@@@alignat}%
-    \displaybreak@
-    \intertext@
-    \displ@y@
-    \measuring@true
-    \setbox\savealignat@\hbox{%
-        $\m@th\displaystyle\Let@
-        \attag@{#1}%
-        \vbox{%
-            \firstchoice@false
-            \halign{\span\preamble@@\crcr#2\crcr}%
-        }%
-        $%
-    }%
-    \measuring@false
-    \Let@
-    \attag@{#1}%
-    \tabskip\@mathmargin %%*F
-    \halign to\displaywidth\bgroup
-        \span\preamble@@\crcr#2%
-}
-\def\attag@#1{%
- \let\TAG@\Tag@\let\Tag@0%
- \ifmeasuring@\def\llap@##1{\setboxz@h{##1}\hbox to\tw@\wdz@{}}%
-  \def\rlap@##1{\setboxz@h{##1}\hbox to\tw@\wdz@{}}\else
-  \let\llap@\llap\let\rlap@\rlap\fi
- \toks@{\hfil\strut@$\m@th\displaystyle{\@lign\the\hashtoks@}$%
-  \tabskip\z@skip
-  \global\advance\and@\@ne
-  &$\m@th\displaystyle{{}\@lign\the\hashtoks@}$\hfil
-  \ifxat@\tabskip\@centering\fi\global\advance\and@\@ne}%
- \iftagsleft@
-  \@temptokena{\tabskip\@centering&\Tag@\kern-\displaywidth
-   \rlap@{\@lign
-     \the\hashtoks@
-    }%
-   \global\advance\and@\@ne\tabskip\displaywidth}\else
-  \@temptokena{\tabskip\@centering&\Tag@\llap@{\@lign
-   \the\hashtoks@
-  }\global\advance\and@\@ne\tabskip\z@skip}\fi
- \atcount@#1\relax\advance\atcount@\m@ne
- \loop\ifnum\atcount@>\z@
- \toks@\expandafter{\the\toks@&\hfil$\m@th\displaystyle{\@lign
-  \the\hashtoks@}$\global\advance\and@\@ne
-  \tabskip\z@skip
-  &$\m@th\displaystyle{{}\@lign\the\hashtoks@}$\hfil\ifxat@
-  \tabskip\@centering\fi\global\advance\and@\@ne}\advance\atcount@\m@ne
- \repeat
- \xdef\preamble@{\the\toks@\the\@temptokena}%
- \xdef\preamble@@{\ifst@rred\noexpand\nonumber\fi\preamble@}%
- \let\Tag@\TAG@}
-\def\xxalignat#1{%
- \ifmmode\nomath@env\DN@{\let\endxxalignat\relax\@gobble}\else$$%
- \DN@{\@nameuse{xxalignat }#1}\fi
- \collect@body\next@}
-\@namedef{xxalignat }#1#2{\inany@true
- \displaybreak@\intertext@
- \displ@y\setbox\savealignat@\hbox{$\m@th\displaystyle\Let@
- \xxattag@{#1}%
- \vbox{\firstchoice@false\halign{\span\preamble@@\crcr#2\crcr}}$}%
- \Let@\xxattag@{#1}\tabskip\z@skip\halign to\displaywidth\bgroup
-  \span\preamble@@\crcr#2}
-\expandafter\let\expandafter\endxxalignat\csname endxalignat*\endcsname
-\def\xxattag@#1{\toks@{\tabskip\z@skip\hfil\strut@
- $\m@th\displaystyle{\the\hashtoks@}$&%
- $\m@th\displaystyle{{}\the\hashtoks@}$\hfil\tabskip\@centering&}%
- \atcount@#1\relax\advance\atcount@\m@ne\loop\ifnum\atcount@>\z@
- \toks@
-  \expandafter
-   {\the\toks@&\hfil$\m@th\displaystyle{\the\hashtoks@}$%
-  \tabskip\z@skip&$\m@th\displaystyle{{}\the\hashtoks@}$\hfil
-  \tabskip\@centering}\advance\atcount@\m@ne\repeat
- \xdef\preamble@{\the\toks@\tabskip\z@skip}\xdef\preamble@@{\preamble@}}
-\newdimen\gwidth@
-\newdimen\gmaxwidth@
-\def\gmeasure@#1{\gwidth@\z@\gmaxwidth@\z@\setbox\@ne\vbox{\Let@
- \firstchoice@false\let\tag\gobble@tag
- \halign{\setboxz@h{$\m@th\displaystyle{##}$}\global\gwidth@\wdz@
- \ifdim\gwidth@>\gmaxwidth@\global\gmaxwidth@\gwidth@\fi
- &\@gobble{##}\crcr#1\crcr}}}
-\def\math@cr@@@gather{%
-  \if@eqnsw\global\tag@true\fi
-  \iftag@
-    \DN@{&\relax \if@eqnsw
-                    \tagform@\theequation \stepcounter{equation}%
-                 \else\iftag@\df@tag\fi\fi}%
-  \else
-    \expandafter\@gobble\fi
-  \next@
-  \global\@eqnswtrue\cr}
-\def\gather{%
- \ifmmode\nomath@env\DN@{\let\endgather\relax\@gobble}\else $$%
-  \ingather@true\inany@true
-  \stepcounter{equation}%
-  \let\tag\tag@in@align\st@rredfalse
-  \displaybreak@\intertext@
-  \displ@y
-  \Let@\@seteqlabel\theequation
-  \let\math@cr@@@\math@cr@@@gather
-  \iftagsleft@\DN@{\@nameuse{gather }}\else
-   \DN@{\@nameuse{gather \space}}\fi\fi
- \collect@body\next@}
-\@namedef{gather*}{%
- \ifmmode\nomath@env\DN@{\@namedef{endgather*}{}\@gobble}\else $$%
-  \ingather@true\inany@true
-  \let\tag\tag@in@align\st@rredtrue
-  \displaybreak@\intertext@
-  \displ@y\Let@
-  \let\math@cr@@@\math@cr@@@gather
-  \iftagsleft@\DN@{\@nameuse{gather }}\else
-   \DN@{\@nameuse{gather \space}}\fi\fi
- \collect@body\next@}
-\newdimen\glineht@
-\@namedef{gather \space}#1{%
-    \gmeasure@{#1}%
-    \if@fleqn %%*F
-        \advance\gmaxwidth@\@mathmargin %%*F
-    \fi %%*F
-    \global\dt@ptrue
-    \tabskip\@mathmargin %%*F
-    \halign to\displaywidth\bgroup
-        \ifst@rred\nonumber\else\global\@eqnswtrue\fi
-        \if@fleqn\else\hfil\fi %%*F
-        \strut@
-        \setboxz@h{\global\tag@false$\m@th\displaystyle{##}$}%
-        \global\gwidth@\wdz@\boxz@
-        \hfil
-        \tabskip\@centering %%*F
-       &\setboxz@h{\strut@{##}}%
-        \dimen@\displaywidth
-        \advance\dimen@-\gwidth@
-        \if@fleqn %%*F
-            \advance\dimen@-\@mathmargin %%*F
-        \else %%*F
-            \divide\dimen@\tw@ %%*B
-        \fi %%*F
-        \ifdim\dimen@<\tw@\wdz@ %%*
-            \llap{\vtop{\@movetag\normalbaselines\null\boxz@}}%%*T %%*
-        \else
-            \llap{\boxz@}% %%*
-        \fi
-        \tabskip\z@skip
-        \crcr
-        #1%
-}
-\def\endgather{\math@cr
-  \black@\gmaxwidth@\egroup $$\setb@ck\global\@ignoretrue}
-
-\@namedef{endgather*}{\math@cr
-  \black@\gmaxwidth@\egroup $$\global\@ignoretrue}
-\@namedef{gather }#1{%
-    \gmeasure@{#1}%
-    \global\dt@ptrue
-    \if@fleqn %%*F
-        \advance\gmaxwidth@\@mathmargin %%*F
-    \fi %%*F
-    \ifdim\gmaxwidth@>\displaywidth
-        \let\gdisplaywidth@\gmaxwidth@
-    \else
-        \let\gdisplaywidth@\displaywidth
-    \fi
-    \tabskip\@mathmargin %%*F
-    \halign to\displaywidth\bgroup
-        \ifst@rred\nonumber\else\global\@eqnswtrue\fi
-        \if@fleqn\else\hfil\fi %%*F
-        \strut@
-        \setboxz@h{\global\tag@false$\m@th\displaystyle{##}$}%
-        \global\gwidth@\wdz@
-        \global\glineht@\ht\z@
-        \boxz@
-        \hfil
-        \tabskip\@centering %%*F
-       &\kern-\gdisplaywidth@
-        \setboxz@h{\strut@{##}}%
-        \if@fleqn %%*F
-            \dimen@\@mathmargin %%*F
-        \else %%*F
-            \dimen@\displaywidth
-            \advance\dimen@-\gwidth@
-            \divide\dimen@\tw@ %%*B
-        \fi %%*F
-        \ifdim\dimen@<\tw@\wdz@ %%*
-            \rlap{\vbox{\normalbaselines\boxz@\vbox to\glineht@{}}}% %%*
-        \else
-            \rlap{\boxz@}% %%*
-        \fi
-        \tabskip\gdisplaywidth@
-        \crcr
-        #1%
-}
-\def\split{%
- \ifinany@\let\next@\insplit@\else
-  \DN@{\PackageError{amstex}{\string\begin{split} is not allowed
-    here.  Try the `aligned' environment.}\@ehb}\fi
- \next@}
-\def\insplit@{\global\setbox\z@\vbox\bgroup
-  \Let@ \restore@math@cr \default@tag % disallow use of \tag here
-  \ialign\bgroup \hfil\strut@
-   $\m@th\displaystyle{##}$&$\m@th\displaystyle{{}##}$\hfill\crcr}
-\def\endsplit{\crcr\egroup\egroup
- \iftagsleft@\expandafter\lendsplit@\else
-  \expandafter\rendsplit@\fi}
-\def\rendsplit@{\global\setbox9 \vbox
- {\unvcopy\z@\global\setbox8 \lastbox\unskip}%
- \setbox\@ne\hbox{\unhcopy8 \unskip\global\setbox\tw@\lastbox
- \unskip\global\setbox\thr@@\lastbox}%
- \global\setbox7 \hbox{\unhbox\tw@\unskip}%
- \ifinalign@\ifctagsplit@
-  \gdef\split@{\hbox to\wd\thr@@{}&
-   \vcenter{\vbox{\moveleft\wd\thr@@\boxz@}}}%
- \else\gdef\split@{&\vbox{\moveleft\wd\thr@@\box9}\crcr
-  \box\thr@@&\box7}\fi
- \else
-  \ifctagsplit@\gdef\split@{\vcenter{\boxz@}}\else
-  \gdef\split@{\box9\crcr\hbox{\box\thr@@\box7}}\fi
- \fi
- \aftergroup\split@}
-\def\lendsplit@{\global\setbox9\vtop{\unvcopy\z@}%
- \setbox\@ne\vbox{\unvcopy\z@\global\setbox8\lastbox}%
- \setbox\@ne\hbox{\unhcopy8\unskip\setbox\tw@\lastbox
-  \unskip\global\setbox\thr@@\lastbox}%
- \ifinalign@\ifctagsplit@
-  \gdef\split@{\hbox to\wd\thr@@{}&
-  \vcenter{\vbox{\moveleft\wd\thr@@\box9}}}%
-  \else
-  \gdef\split@{\hbox to\wd\thr@@{}&\vbox{\moveleft\wd\thr@@\box9}}\fi
- \else
-  \ifctagsplit@\gdef\split@{\vcenter{\box9}}\else
-  \gdef\split@{\box9}\fi
- \fi\aftergroup\split@}
-\newdimen\multlinegap
-\multlinegap10pt
-\newdimen\multlinetaggap@
-\multlinetaggap@10pt
-\def\multline{%
- \ifmmode\nomath@env\DN@{\let\endmultline\relax\@gobble}%
- \else $$\DN@{\collect@body\multline@}\fi
- \st@rredfalse\@eqnswtrue \@seteqlabel\theequation
- \stepcounter{equation}\next@}
-\@namedef{multline*}{%
- \ifmmode\nomath@env\DN@{\@namedef{endmultline*}{}\@gobble}%
- \else $$\DN@{\collect@body\multline@}\fi
- \st@rredtrue\@eqnswfalse \let\@currentlabel\@empty
- \next@}
-\def\multline@{\inany@true\displaybreak@
- \global\tag@false
- \def\tag{\ifst@rred\else
-   \global\advance\c@equation\m@ne\fi\tag@in@align}%
- \iftagsleft@
-  \expandafter\lmultline@@\else
-  \expandafter\rmultline@@\fi}
-\newdimen\mwidth@
-\def\rmmeasure@#1{%
- \def\shoveleft##1{##1}\def\shoveright##1{##1}%
- \setbox\@ne\vbox{\firstchoice@false\Let@\halign{\setboxz@h
-  {$\m@th\@lign\displaystyle{}##$}\global\mwidth@\wdz@
-  \crcr#1\crcr}}}
-\newdimen\mlineht@
-\newif\ifzerocr@
-\newif\ifonecr@
-\def\lmmeasure@#1{\global\zerocr@true\global\onecr@false
- \everycr{\noalign{\ifonecr@\global\onecr@false\fi
-  \ifzerocr@\global\zerocr@false\global\onecr@true\fi}}%
-  \def\shoveleft##1{##1}\def\shoveright##1{##1}%
- \setbox\@ne\vbox{\Let@\firstchoice@false\halign{\setboxz@h
-  {$\m@th\@lign\displaystyle{}##$}\ifonecr@\global\mwidth@\wdz@
-  \global\mlineht@\ht\z@\fi\crcr#1\crcr}}}
-\newbox\mtagbox@
-\newdimen\ltwidth@
-\newdimen\rtwidth@
-\def\lmultline@@#1{%
-    \lmmeasure@{#1}%
-    \setbox\mtagbox@\hbox{%
-        \iftag@
-            \df@tag
-        \else
-            \if@eqnsw
-                \global\tag@true
-                \tagform@\theequation
-            \fi
-        \fi
-    }%
-    \dimen@\mwidth@
-    \advance\dimen@\wd\mtagbox@
-    \advance\dimen@\multlinetaggap@
-    \if@fleqn %%*F
-        \advance\dimen@\@mathmargin %%*F
-    \fi %%*F
-    \ifdim\dimen@>\displaywidth
-        \ltwidth@\z@
-    \else
-        \ltwidth@\wd\mtagbox@
-    \fi
-    \lmultline@@@#1
-}
-\def\lmultline@@@{%
-    \displ@y
-    \def\shoveright##1{##1\hfilneg\hskip\multlinegap}%
-    \if@fleqn %%*F
-        \def\shoveleft##1{##1}% %%*F
-    \else %%*F
-        \def\shoveleft##1{%
-                \setboxz@h{$\m@th\displaystyle{}##1$}%
-                \setbox\@ne\hbox{$\m@th\displaystyle##1$}%
-                \hfilneg
-                \iftag@
-                    \ifdim\ltwidth@>\z@
-                        \hskip\ltwidth@
-                        \hskip\multlinetaggap@
-                    \fi
-                \else
-                    \hskip\multlinegap
-                \fi
-                \hskip.5\wd\@ne
-                \hskip-.5\wdz@##1%
-        }%
-    \fi %%*F
-    \if@fleqn %%*F
-        \tabskip\@mathmargin %%*F
-    \else %%*F
-        \tabskip\z@skip %%*
-    \fi %%*F
-    \totwidth@\displaywidth %%*F
-    \if@fleqn %%*F
-        \advance\totwidth@-\@mathmargin %%*F
-    \fi %%*F
-    \halign\bgroup
-        \Let@
-        \let\tag\gobble@tag
-        \hbox to\totwidth@{% %%*F
-            \strut@$\m@th\displaystyle
-            \if@fleqn %%*F
-                \hskip 0pt plus 1000pt %%*F
-            \else %%*F
-                \hfil
-            \fi %%*F
-            {}##\hfil$%
-        }%
-        \crcr
-        \if@fleqn %%*F
-            \hskip-\@mathmargin %%*F
-        \else %%*F
-            \hfilneg
-        \fi %%*F
-        \iftag@
-            \ifdim\ltwidth@>\z@
-                \box\mtagbox@
-                \hskip\multlinetaggap@
-            \else
-                \rlap{%
-                    \vbox{%
-                        \normalbaselines
-                        \hbox{\strut@\box\mtagbox@}%
-                        \vbox to\mlineht@{}%
-                    }%
-                }%
-                \hskip\multlinegap %%*
-            \fi
-        \else
-            \hskip\multlinegap
-        \fi
-}
-\def\rmultline@@#1{%
-    \rmmeasure@{#1}%
-    \setbox\mtagbox@\hbox{%
-        \iftag@
-            \df@tag
-        \else
-            \if@eqnsw
-                \global\tag@true
-                \tagform@\theequation
-            \fi
-        \fi
-    }%
-    \dimen@\mwidth@
-    \advance\dimen@\wd\mtagbox@
-    \advance\dimen@\multlinetaggap@
-    \if@fleqn %%*F
-        \advance\dimen@\@mathmargin %%*F
-    \fi %%*F
-    \ifdim\dimen@>\displaywidth
-        \rtwidth@\z@
-    \else
-        \rtwidth@\wd\mtagbox@
-    \fi
-    \rmultline@@@#1
-}
-\def\rmultline@@@{%
-    \displ@y
-    \def\shoveright##1{%
-        ##1%
-        \hfilneg
-        \iftag@
-            \ifdim\rtwidth@>\z@
-                \hskip\rtwidth@
-                \hskip\multlinetaggap@
-            \fi
-        \else
-            \hskip\multlinegap
-        \fi
-    }%
-    \if@fleqn %%*F
-        \def\shoveleft##1{##1}% %%*F
-    \else %%*F
-        \def\shoveleft##1{%
-            \setboxz@h{$\m@th\displaystyle{}##1$}%
-            \setbox\@ne\hbox{$\m@th\displaystyle##1$}%
-            \hfilneg
-            \hskip\multlinegap
-            \hskip.5\wd\@ne
-            \hskip-.5\wdz@
-            ##1%
-        }%
-    \fi %%*F
-    \if@fleqn %%*F
-        \tabskip\@mathmargin %%*F
-    \else %%*F
-        \tabskip\z@skip %%*
-    \fi %%*F
-    \totwidth@\displaywidth %%*F
-    \if@fleqn %%*F
-        \advance\totwidth@-\@mathmargin %%*F
-    \fi %%*F
-    \halign\bgroup
-        \Let@
-        \let\tag\gobble@tag
-        \hbox to\totwidth@{%
-            \strut@$\m@th\displaystyle
-            \if@fleqn %%*F
-                \hskip 0pt plus 1000pt %%*F
-            \else %%*F
-                \hfil
-            \fi %%*F
-            {}##\hfil$%
-        }%
-        \crcr
-        \if@fleqn %%*F
-            \hskip-\@mathmargin %%*F
-        \else %%*F
-            \hfilneg
-        \fi %%*F
-        \hskip\multlinegap
-}
-\def\endmultline{\iftagsleft@\expandafter\lendmultline@\else
-  \expandafter\rendmultline@\fi\global\@ignoretrue}
-\expandafter\let\csname endmultline*\endcsname=\endmultline
-\def\lendmultline@{\hfilneg\hskip\multlinegap\crcr\egroup$$}
-\def\rendmultline@{%
-    \iftag@
-        \ifdim\rtwidth@>\z@
-            \hskip\multlinetaggap@
-            \box\mtagbox@
-        \else
-            \hskip\multlinegap %%*
-            \llap{%
-                \vtop{%
-                    \@movetag %%*T
-                    \normalbaselines\null\hbox{\strut@\box\mtagbox@}%
-                }%
-            }%
-        \fi
-    \else
-        \hskip\multlinegap
-    \fi
-    \hfilneg
-    \crcr
-    \egroup$$%
-}
-\expandafter\def
- \expandafter\@arrayparboxrestore
-  \expandafter{\@arrayparboxrestore
-               \inany@false\ingather@false\inalign@false
-   \default@tag}
-\def\equation{\gather\def\\{\PackageError{amstex}{\Invalid@@\\}\@eha}}
-\def\endequation{\endgather}
-\newenvironment{equation*}{%
-  \equation
-}{%
-  \nonumber\endequation
-}
-\newcounter{parentequation}% Counter for ``parent equation''.
-\newenvironment{subequations}{%
-  \refstepcounter{equation}%
-  \begingroup % conservative approach
-  \let\protect\@nx
-  \edef\@tempa{\def\@nx\theparentequation{\theequation}}%
-  \@xp\endgroup\@tempa
-  \setcounter{parentequation}{\value{equation}}%
-  \setcounter{equation}{0}%
-  \def\theequation{\theparentequation\alph{equation}}%
-  \ignorespaces
-}{%
-  \setcounter{equation}{\value{parentequation}}%
-  \global\@ignoretrue
-}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\def\atdef@#1{\expandafter\def\csname\space @\string#1\endcsname}
-\begingroup \catcode`\@=\active
-\gdef @{\Iat}
-\endgroup
-\DeclareRobustCommand{\Iat}{\FN@\at@}
-\def\at@{\let\next@\at@@
- \ifcat\noexpand\@let@token a\else
- \ifcat\noexpand\@let@token0\else
- \ifcat\noexpand\@let@token\relax\else
- \let\@let@token@\at@@@\fi\fi\fi\next@}
-\def\at@@#1{\expandafter
-  \@ifundefined{ @\string#1}%
-    {\DN@{\at@@@#1}}%
-    {\DN@{\csname\space @\string#1\endcsname}}%
-  \next@}%
-\def\at@@@{\PackageError{amstex}{\Invalid@@ @}%
-  {\the\athelp@}% "I'll assume you wanted @@"
-  \char64\relax}
-\newhelp\athelp@
-{Only certain combinations beginning with @ make sense to me.^^J%
-I'll assume you wanted @@ for a printed @.}
-\atdef@ @{{\atchar}}% to define @@
-\chardef\atchar=64
-\def\makeatother{\catcode64=\active}
-\def\@tempa#1#2#3#4#5#6{%
-  {#1}{#2}\ifnum0#6=0{13}\@xp\@gobblefour
-  \else{#3}\fi\@tempa{#4}{#5}{#6}}%
-\xdef\@currnamestack{\@xp\@tempa\@currnamestack{}{}{0}}
-{\def\@makeother{\noexpand\@makeother\noexpand}
-\xdef\@sanitize{\@sanitize\@makeother\@}}
-{\def\do{\noexpand\do\noexpand}
-\xdef\dospecials{\dospecials\do\@}}
-\atdef@,{\ifmmode\mskip.1\thinmuskip\else \nonmatherr@{@,}\fi}
-\atdef@!{\RIfM@\mskip-.1\thinmuskip\else \nonmatherr@{@!}\fi}
-
-\@ifpackageloaded{amscd}{%
-}{%
-\atdef@>#1>#2>{%
-  \global\bigaw@\minaw@
-  \setboxz@h{$\m@th\scriptstyle\;{#1}\;\;$}%
-  \ifdim\wdz@>\bigaw@ \global\bigaw@\wdz@ \fi
-  \@ifnotempty{#2}{\setbox\@ne\hbox{$\m@th\scriptstyle\;{#2}\;\;$}%
-    \ifdim\wd\@ne>\bigaw@ \global\bigaw@\wd\@ne \fi}%
-   \mathrel{\mathop{\hbox to\bigaw@{\rightarrowfill@\displaystyle}}%
-     \limits^{#1}\@ifnotempty{#2}{_{#2}}}%
-}% end of @>>>
-\atdef@<#1<#2<{%
-  \global\bigaw@\minaw@
-  \setboxz@h{$\m@th\scriptstyle\;\;{#1}\;$}%
-  \ifdim\wdz@>\bigaw@ \global\bigaw@\wdz@ \fi
-  \@ifnotempty{#2}{\setbox\@ne\hbox{$\m@th\scriptstyle\;\;{#2}\;$}%
-    \ifdim\wd\@ne>\bigaw@ \global\bigaw@\wd\@ne \fi}%
-  \mathrel{\mathop{\hbox to\bigaw@{\leftarrowfill@\displaystyle}}%
-      \limits^{#1}\@ifnotempty{#2}{_{#2}}}%
-}% end of @<<<
-}% end of @ifpackageloaded
-\@ifundefined{minaw@}{\newdimen\minaw@}{}
-\minaw@11.111pt
-\@ifundefined{bigaw@}{\newdimen\bigaw@}{}
-\atdef@-{\let\next-%%
-  \DN@{\ifx\next-%%
-    \def\next-{\setbox\z@\hbox{-}\unhbox\z@\FN@\next@}%%
-    \expandafter\next \else\nobreak\fi}%%
-  \next@-}%%
-\def\leftroot{\PackageError{amstex}{\Invalid@@\leftroot}\@eha}
-\def\uproot{\PackageError{amstex}{\Invalid@@\uproot}\@eha}
-\newcount\uproot@
-\newcount\leftroot@
-\def\root{\relaxnext@
-  \DN@{\ifx\@let@token\uproot\let\next@\nextii@\else
-   \ifx\@let@token\leftroot\let\next@\nextiii@\else
-   \let\next@\plainroot@\fi\fi\next@}%
-  \def\nextii@\uproot##1{\uproot@##1\relax\FN@\nextiv@}%
-  \def\nextiv@{\ifx\@let@token\@sptoken\DN@. {\FN@\nextv@}\else
-   \DN@.{\FN@\nextv@}\fi\next@.}%
-  \def\nextv@{\ifx\@let@token\leftroot\let\next@\nextvi@\else
-   \let\next@\plainroot@\fi\next@}%
-  \def\nextvi@\leftroot##1{\leftroot@##1\relax\plainroot@}%
-   \def\nextiii@\leftroot##1{\leftroot@##1\relax\FN@\nextvii@}%
-  \def\nextvii@{\ifx\@let@token\@sptoken
-   \DN@. {\FN@\nextviii@}\else
-   \DN@.{\FN@\nextviii@}\fi\next@.}%
-  \def\nextviii@{\ifx\@let@token\uproot\let\next@\nextix@\else
-   \let\next@\plainroot@\fi\next@}%
-  \def\nextix@\uproot##1{\uproot@##1\relax\plainroot@}%
-  \bgroup\uproot@\z@\leftroot@\z@\FN@\next@}
-\def\plainroot@#1\of#2{\setbox\rootbox\hbox{%
- $\m@th\scriptscriptstyle{#1}$}%
- \mathchoice{\r@@t\displaystyle{#2}}{\r@@t\textstyle{#2}}
- {\r@@t\scriptstyle{#2}}{\r@@t\scriptscriptstyle{#2}}\egroup}
-\def\r@@t#1#2{\setboxz@h{$\m@th#1\@@sqrt{#2}$}%
- \dimen@\ht\z@\advance\dimen@-\dp\z@
- \setbox\@ne\hbox{$\m@th#1\mskip\uproot@ mu$}%
- \advance\dimen@ by1.667\wd\@ne
- \mkern-\leftroot@ mu\mkern5mu\raise.6\dimen@\copy\rootbox
- \mkern-10mu\mkern\leftroot@ mu\boxz@}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% Fragment from old amsfonts.sty to deal with msam, msbm, eufm fonts;
-%% omit if `noamsfonts' option was specified.
-\ifx F\@amsfonts \endinput \fi
-\DeclareSymbolFont{AMSa}{U}{msa}{m}{n}
-\DeclareSymbolFont{AMSb}{U}{msb}{m}{n}
-\ifx P\@amsfonts
-  \DeclareFontFamily{U}{msa}{}%
-  \DeclareFontShape{U}{msa}{m}{n}{<-6>msam5<6-8>msam7<8->msam10}{}%
-  \DeclareFontFamily{U}{msb}{}%
-  \DeclareFontShape{U}{msb}{m}{n}{<-6>msbm5<6-8>msbm7<8->msbm10}{}%
-  \DeclareFontFamily{U}{euf}{}%
-  \DeclareFontShape{U}{euf}{m}{n}{<-6>eufm5<6-8>eufm7<8->eufm10}{}%
-  \DeclareFontShape{U}{euf}{b}{n}{<-6>eufb5<6-8>eufb7<8->eufb10}{}%
-\fi
-\@ifundefined{yen}{%
-  \edef\yen{\noexpand\mathhexbox{\hexnumber@\symAMSa}55}
-}{}
-\@ifundefined{checkmark}{%
-  \edef\checkmark{\noexpand\mathhexbox{\hexnumber@\symAMSa}58}
-}{}
-\@ifundefined{circledR}{%
-  \edef\circledR{\noexpand\mathhexbox{\hexnumber@\symAMSa}72}
-}{}
-\@ifundefined{maltese}{%
-  \edef\maltese{\noexpand\mathhexbox{\hexnumber@\symAMSa}7A}
-}{}
-\begingroup \catcode`\"=12
-\DeclareMathDelimiter\ulcorner{\mathopen} {AMSa}{"70}{AMSa}{"70}
-\DeclareMathDelimiter\urcorner{\mathclose}{AMSa}{"71}{AMSa}{"71}
-\DeclareMathDelimiter\llcorner{\mathopen} {AMSa}{"78}{AMSa}{"78}
-\DeclareMathDelimiter\lrcorner{\mathclose}{AMSa}{"79}{AMSa}{"79}
-\xdef\widehat#1{\noexpand\@mathmeasure\z@\textstyle{#1}%
-  \noexpand\ifdim\noexpand\wdz@>\tw@ em%
-  \mathaccent"0\hexnumber@\symAMSb 5B{#1}%
-  \noexpand\else\mathaccent"0362{#1}\noexpand\fi}
-\xdef\widetilde#1{\noexpand\@mathmeasure\z@\textstyle{#1}%
-  \noexpand\ifdim\noexpand\wdz@>\tw@ em%
-  \mathaccent"0\hexnumber@\symAMSb 5D{#1}%
-  \noexpand\else\mathaccent"0365{#1}\noexpand\fi}
-\DeclareMathSymbol\dabar@{\mathord}{AMSa}{"39}
-\xdef\dashrightarrow{\mathrel{\dabar@\dabar@
-                              \mathchar"0\hexnumber@\symAMSa 4B}}%
-\xdef\dashleftarrow{\mathrel{\mathchar"0\hexnumber@\symAMSa 4C\dabar@
-                              \dabar@}}%
-\global\let\dasharrow\dashrightarrow
-\global\let\rightleftharpoons\undefined
-\DeclareMathSymbol\rightleftharpoons{\mathrel}{AMSa}{"0A}
-\global\let\angle\undefined
-\DeclareMathSymbol\angle            {\mathord}{AMSa}{"5C}
-\global\let\hbar\undefined
-\DeclareMathSymbol\hbar             {\mathord}{AMSb}{"7E}
-\global\let\sqsubset\undefined
-\DeclareMathSymbol\sqsubset         {\mathrel}{AMSa}{"40}
-\global\let\sqsupset\undefined
-\DeclareMathSymbol\sqsupset         {\mathrel}{AMSa}{"41}
-\global\let\mho\undefined
-\DeclareMathSymbol\mho              {\mathord}{AMSb}{"66}
-\DeclareMathSymbol\square           {\mathord}{AMSa}{"03}
-\DeclareMathSymbol\lozenge          {\mathord}{AMSa}{"06}
-\DeclareMathSymbol\vartriangleright {\mathrel}{AMSa}{"42}
-\DeclareMathSymbol\vartriangleleft  {\mathrel}{AMSa}{"43}
-\DeclareMathSymbol\trianglerighteq  {\mathrel}{AMSa}{"44}
-\DeclareMathSymbol\trianglelefteq   {\mathrel}{AMSa}{"45}
-\DeclareMathSymbol\rightsquigarrow  {\mathrel}{AMSa}{"20}
-\def\@tempa{\not@base\lhd}
-\ifx\lhd\@tempa
- \global\let\lhd\vartriangleleft
- \global\let\unlhd\trianglelefteq
- \global\let\rhd\vartriangleright
- \global\let\unrhd\trianglerighteq
- \global\let\Box\square
- \global\let\Diamond\lozenge
- \global\let\leadsto\rightsquigarrow
-\xdef\Join{\mathrel{\mathchar"0\hexnumber@\symAMSb 6F\mkern-13.8mu%
-  \mathchar"0\hexnumber@\symAMSb 6E}}
-\fi
-\endgroup
-\DeclareMathAlphabet\mathfrak{U}{euf}{m}{n}
-\SetMathAlphabet\mathfrak{bold}{U}{euf}{b}{n}
-\DeclareSymbolFontAlphabet{\mathbb}{AMSb}
-\DeclareFontEncodingDefaults{\relax}{\def\accentclass@{7}}
-\def\frak{\mathfrak}
-\def\Bbb{\mathbb}
-\def\bold{\mathbf}
-\begingroup \catcode`\"=12 \relax
-\gdef\newsymbol#1#2#3#4#5{%
-  \@ifdefinable#1{%
-     \edef\next@
-       {\ifcase #2 \or
-          \hexnumber@\symAMSa\or
-          \hexnumber@\symAMSb\fi}%
-     \ifx\next@\@empty
-       \PackageError{amsfonts}{\Invalid@@\newsymbol}\@ehd%
-     \else
-      \global\mathchardef#1"#3\next@#4#5
-     \fi}}
-\endgroup
-%%   Some odds and ends
-\def\sphat{^{\mathchoice{}{}%
- {\,\,\smash[b]{\hbox{\lower4\ex@\hbox{$\m@th\widehat{\null}$}}}}%
- {\,\smash[b]{\hbox{\lower3\ex@\hbox{$\m@th\hat{\null}$}}}}}}
-\def\spcheck{^\vee}
-\def\sptilde{^\sim}
-\def\spdot{^{\hbox{\raise\ex@\hbox{\normalfont .}}}}
-\def\spddot{^{\hbox{\raise\ex@\hbox{\normalfont ..}}}}
-\def\spdddot{^{\hbox{\raise\ex@\hbox{\normalfont...}}}}
-\def\spbreve{^{\!\smash[b]{\hbox{\lower4\ex@\hbox{\u{}}}}}}
-\def\fracwithdelims#1#2{\new@ifnextchar[{\fracwithdelims@#1#2}%
-  {\fracwithdelims@#1#2[\@empty]}}
-\def\fracwithdelims@#1#2[#3]#4#5{\relax
-  \ifx\@empty#3{#4\overwithdelims#1#2#5}\else
-  {#4\abovewithdelims#1#2#3\relax#5}\fi}
-\def\accentedsymbol#1#2{%
-  \expandafter\newbox
-    \csname\expandafter\@gobble\string#1@box\endcsname
-  \expandafter\setbox
-    \csname\expandafter\@gobble\string#1@box\endcsname
-      \hbox{$\m@th#2$}%
-  \newcommand{#1}{%
-    \expandafter\copy
-      \csname\expandafter\@gobble\string#1@box\endcsname{}}%
-}
-\def~{\nobreakspace}
-\DeclareRobustCommand{\nobreakspace}{\unskip\nobreak\ \ignorespaces}
-%%
-%% End of file `amstex.sty'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/amstext.sty b/Master/texmf-dist/tex/latex/amslatex/amstext.sty
deleted file mode 100644
index 6c3c1692d89..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/amstext.sty
+++ /dev/null
@@ -1,101 +0,0 @@
-%%
-%% This is file `amstext.sty',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amstext.dtx 
-%% 
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amstext.dtx",
-%%%   version   = "2.01",
-%%%   date      = "2000/06/29",
-%%%   time      = "08:34:33 EDT",
-%%%   checksum  = "09860 314 1647 12368",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995, 1999 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Electronic Products and Services,
-%%%                P. O. Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   supported = "yes",
-%%%   keywords  = "latex, math, text",
-%%%   abstract  = "This is a \LaTeX{} package that defines a
-%%%                \cn{\text} macro, which makes it easy to
-%%%                incorporate fragments of text inside a displayed
-%%%                equation or a sub or superscript. Font sizes
-%%%                are automatically scaled in sub/superscripts.",
-%%%   docstring = "The checksum field above contains a CRC-16
-%%%                checksum as the first value, followed by the
-%%%                equivalent of the standard UNIX wc (word
-%%%                count) utility output of lines, words, and
-%%%                characters.  This is produced by Robert
-%%%                Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1994/12/01]% LaTeX date must be December 1994 or later
-\ProvidesPackage{amstext}[2000/06/29 v2.01]
-\RequirePackage{amsgen}
-\DeclareRobustCommand{\text}{%
-  \ifmmode\expandafter\text@\else\expandafter\mbox\fi}
-\let\nfss@text\text
-\def\text@#1{{\mathchoice
-  {\textdef@\displaystyle\f@size{#1}}%
-  {\textdef@\textstyle\f@size{\firstchoice@false #1}}%
-  {\textdef@\textstyle\sf@size{\firstchoice@false #1}}%
-  {\textdef@\textstyle \ssf@size{\firstchoice@false #1}}%
-  \check@mathfonts
-  }%
-}
-\def\textdef@#1#2#3{\hbox{{%
-                    \everymath{#1}%
-                    \let\f@size#2\selectfont
-                    #3}}}
-\newif\iffirstchoice@
-\firstchoice@true
-\def\stepcounter#1{%
-  \iffirstchoice@
-     \addtocounter{#1}\@ne
-     \begingroup \let\@elt\@stpelt \csname cl@#1\endcsname \endgroup
-  \fi
-}
-\def\addtocounter#1#2{%
-  \iffirstchoice@
-  \@ifundefined {c@#1}{\@nocounterr {#1}}%
-    {\global \advance \csname c@#1\endcsname #2\relax}%
-  \fi}
-\let\m@gobble\@empty
-\@xp\let\csname m@gobble4\endcsname\@gobblefour
-\long\@xp\def\csname m@gobble6\endcsname#1#2#3#4#5#6{}
-\toks@{%
-  \csname m@gobble\iffirstchoice@\else 4\fi\endcsname
-  \protect}
-\edef\GenericInfo{\the\toks@
-  \@xp\@nx\csname GenericInfo \endcsname}
-\edef\GenericWarning{\the\toks@
-  \@xp\@nx\csname GenericWarning \endcsname}
-\toks@{%
-  \csname m@gobble\iffirstchoice@\else 6\fi\endcsname
-  \protect}
-\edef\GenericError{\the\toks@
-  \@xp\@nx\csname GenericError \endcsname}
-\begingroup \catcode`\"=12
-\gdef\mathhexbox#1#2#3{\text{$\m@th\mathchar"#1#2#3$}}
-\endgroup
-\endinput
-%%
-%% End of file `amstext.sty'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/amsthm.sty b/Master/texmf-dist/tex/latex/amslatex/amsthm.sty
deleted file mode 100644
index adc0add1a9f..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/amsthm.sty
+++ /dev/null
@@ -1,448 +0,0 @@
-%%
-%% This is file `amsthm.sty',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsclass.dtx  (with options: `amsthm')
-%% 
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsclass.dtx",
-%%%   version   = "2.20",
-%%%   date      = "2004/08/06",
-%%%   time      = "13:03:53 EDT",
-%%%   checksum  = "53558 5204 20497 185872",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995, 1999, 2004
-%%%                American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Publications Technical Group,
-%%%                201 Charles Street,
-%%%                Providence, RI 02904,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, AMS, documentclass, theorem",
-%%%   supported = "yes",
-%%%   abstract  = "This is the source for the amsthm package and three
-%%%                AMS document classes: amsart, amsproc, and amsbook.
-%%%                They are designed for use with LaTeX.",
-%%%   docstring = "The checksum field above contains a CRC-16 checksum
-%%%                as the first value, followed by the equivalent of
-%%%                the standard UNIX wc (word count) utility output of
-%%%                lines, words, and characters.  This is produced by
-%%%                Robert Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
-[1995/06/01]% LaTeX date must be June 1995 or later
-\ProvidesPackage{amsthm}[2004/08/06 v2.20]
-\let\@xp=\expandafter
-\let\@nx=\noexpand
-\def\@oparg#1[#2]{\@ifnextchar[{#1}{#1[#2]}}
-\long\def\@ifempty#1{\@xifempty#1@@..\@nil}
-\long\def\@xifempty#1#2@#3#4#5\@nil{%
-  \ifx#3#4\@xp\@firstoftwo\else\@xp\@secondoftwo\fi}
-\long\def\@ifnotempty#1{\@ifempty{#1}{}}
-\def\setboxz@h{\setbox\z@\hbox}
-\def\@addpunct#1{%
-  \relax\ifhmode
-    \ifnum\spacefactor>\@m \else#1\fi
-  \fi}
-\def\nopunct{\spacefactor 1007 }
-\def\frenchspacing{\sfcode`\.1006\sfcode`\?1005\sfcode`\!1004%
-  \sfcode`\:1003\sfcode`\;1002\sfcode`\,1001 }
-\DeclareOption*{\input{\CurrentOption .thm}}
-\ProcessOptions
-
-\newcommand{\theoremstyle}[1]{%
-  \@ifundefined{th@#1}{%
-    \PackageWarning{amsthm}{Unknown theoremstyle `#1'}%
-    \thm@style{plain}%
-  }{%
-    \thm@style{#1}%
-  }%
-}
-\newtoks\thm@style
-\thm@style{plain}
-\newtoks\thm@bodyfont  \thm@bodyfont{\itshape}
-\newtoks\thm@headfont  \thm@headfont{\bfseries}
-\newtoks\thm@notefont  \thm@notefont{}
-\newtoks\thm@headpunct \thm@headpunct{.}
-\newskip\thm@preskip \newskip\thm@postskip
-\def\thm@space@setup{%
-  \thm@preskip=\topsep \thm@postskip=\thm@preskip
-}
-\renewcommand{\newtheorem}{\@ifstar{\@xnthm *}{\@xnthm \relax}}
-\def\@xnthm#1#2{%
-  \let\@tempa\relax
-  \@xp\@ifdefinable\csname #2\endcsname{%
-    \global\@xp\let\csname end#2\endcsname\@endtheorem
-    \ifx *#1% unnumbered, need to get one more mandatory arg
-      \edef\@tempa##1{%
-        \gdef\@xp\@nx\csname#2\endcsname{%
-          \@nx\@thm{\@xp\@nx\csname th@\the\thm@style\endcsname}%
-            {}{##1}}}%
-    \else % numbered theorem, need to check for optional arg
-      \def\@tempa{\@oparg{\@ynthm{#2}}[]}%
-    \fi
-  }%
-  \@tempa
-}
-\def\@ynthm#1[#2]#3{%
-  \ifx\relax#2\relax
-    \def\@tempa{\@oparg{\@xthm{#1}{#3}}[]}%
-  \else
-    \@ifundefined{c@#2}{%
-      \def\@tempa{\@nocounterr{#2}}%
-    }{%
-      \@xp\xdef\csname the#1\endcsname{\@xp\@nx\csname the#2\endcsname}%
-      \toks@{#3}%
-      \@xp\xdef\csname#1\endcsname{%
-        \@nx\@thm{%
-          \let\@nx\thm@swap
-            \if S\thm@swap\@nx\@firstoftwo\else\@nx\@gobble\fi
-          \@xp\@nx\csname th@\the\thm@style\endcsname}%
-            {#2}{\the\toks@}}%
-      \let\@tempa\relax
-    }%
-  \fi
-  \@tempa
-}
-\def\@xthm#1#2[#3]{%
-  \ifx\relax#3\relax
-    \newcounter{#1}%
-  \else
-    \newcounter{#1}[#3]%
-    \@xp\xdef\csname the#1\endcsname{\@xp\@nx\csname the#3\endcsname
-      \@thmcountersep\@thmcounter{#1}}%
-  \fi
-  \toks@{#2}%
-  \@xp\xdef\csname#1\endcsname{%
-    \@nx\@thm{%
-      \let\@nx\thm@swap
-        \if S\thm@swap\@nx\@firstoftwo\else\@nx\@gobble\fi
-      \@xp\@nx\csname th@\the\thm@style\endcsname}%
-      {#1}{\the\toks@}}%
-}
-\def\@thm#1#2#3{%
-  \ifhmode\unskip\unskip\par\fi
-  \normalfont
-  \trivlist
-  \let\thmheadnl\relax
-  \let\thm@swap\@gobble
-  \thm@notefont{\fontseries\mddefault\upshape}%
-  \thm@headpunct{.}% add period after heading
-  \thm@headsep 5\p@ plus\p@ minus\p@\relax
-  \thm@space@setup
-  #1% style overrides
-  \@topsep \thm@preskip               % used by thm head
-  \@topsepadd \thm@postskip           % used by \@endparenv
-  \def\@tempa{#2}\ifx\@empty\@tempa
-    \def\@tempa{\@oparg{\@begintheorem{#3}{}}[]}%
-  \else
-    \refstepcounter{#2}%
-    \def\@tempa{\@oparg{\@begintheorem{#3}{\csname the#2\endcsname}}[]}%
-  \fi
-  \@tempa
-}
-\def\@restorelabelsep{\relax}
-\let\@ythm\relax
-\let\thmname\@iden \let\thmnote\@iden \let\thmnumber\@iden
-\providecommand\@upn{\textup}
-\def\thmhead@plain#1#2#3{%
-  \thmname{#1}\thmnumber{\@ifnotempty{#1}{ }\@upn{#2}}%
-  \thmnote{ {\the\thm@notefont(#3)}}}
-\let\thmhead\thmhead@plain
-\def\swappedhead#1#2#3{%
-  \thmnumber{#2}%
-  \thmname{\@ifnotempty{#2}{~}#1}%
-  \thmnote{ {\the\thm@notefont(#3)}}}
-\let\swappedhead@plain=\swappedhead
-\let\thmheadnl\relax
-\let\thm@indent\noindent
-\let\thm@swap\@gobble
-\def\@begintheorem#1#2[#3]{%
-  \deferred@thm@head{\the\thm@headfont \thm@indent
-    \@ifempty{#1}{\let\thmname\@gobble}{\let\thmname\@iden}%
-    \@ifempty{#2}{\let\thmnumber\@gobble}{\let\thmnumber\@iden}%
-    \@ifempty{#3}{\let\thmnote\@gobble}{\let\thmnote\@iden}%
-    \thm@swap\swappedhead\thmhead{#1}{#2}{#3}%
-    \the\thm@headpunct
-    \thmheadnl % possibly a newline.
-    \hskip\thm@headsep
-  }%
-  \ignorespaces}
-\newskip\thm@headsep
-\thm@headsep=5pt plus1pt minus1pt\relax
-\let\adjust@parskip@nobreak=\@nbitem
-\newtoks\dth@everypar
-\dth@everypar={%
-  \@minipagefalse \global\@newlistfalse
-  \@noparitemfalse
-  \if@inlabel
-    \global\@inlabelfalse
-    \begingroup \setbox\z@\lastbox
-     \ifvoid\z@ \kern-\itemindent \fi
-    \endgroup
-    \unhbox\@labels
-  \fi
-  \if@nobreak \@nobreakfalse \clubpenalty\@M
-  \else \clubpenalty\@clubpenalty \everypar{}%
-  \fi
-}%
-\def\deferred@thm@head#1{%
-  \if@inlabel \indent \par \fi % eject a section head if one is pending
-  \if@nobreak
-    \adjust@parskip@nobreak
-  \else
-    \addpenalty\@beginparpenalty
-    \addvspace\@topsep
-    \addvspace{-\parskip}%
-  \fi
-  \global\@inlabeltrue
-  \everypar\dth@everypar
-  \sbox\@labels{\normalfont#1}%
-  \ignorespaces
-}
-\def\nonslanted{\relax
-  \@xp\let\@xp\@tempa\csname\f@shape shape\endcsname
-  \ifx\@tempa\itshape\upshape
-  \else\ifx\@tempa\slshape\upshape\fi\fi}
-\def\swapnumbers{\edef\thm@swap{\if S\thm@swap N\else S\fi}}
-\def\thm@swap{N}%
-\let\@opargbegintheorem\relax
-\def\th@plain{%
-%%  \let\thm@indent\noindent % no indent
-%%  \thm@headfont{\bfseries}% heading font is bold
-%%  \thm@notefont{}% same as heading font
-%%  \thm@headpunct{.}% add period after heading
-%%  \let\thm@swap\@gobble
-%%  \thm@preskip\topsep
-%%  \thm@postskip\theorempreskipamount
-  \itshape % body font
-}
-\def\th@definition{%
-  \normalfont % body font
-}
-\def\th@remark{%
-  \thm@headfont{\itshape}%
-  \normalfont % body font
-  \thm@preskip\topsep \divide\thm@preskip\tw@
-  \thm@postskip\thm@preskip
-}
-\def\@endtheorem{\endtrivlist\@endpefalse }
-\newcommand{\newtheoremstyle}[9]{%
-  \@ifempty{#5}{\dimen@\z@skip}{\dimen@#5\relax}%
-  \ifdim\dimen@=\z@
-    \toks@{#4\let\thm@indent\noindent}%
-  \else
-    \toks@{#4\def\thm@indent{\noindent\hbox to#5{}}}%
-  \fi
-  \def\@tempa{#8}\ifx\space\@tempa
-    \toks@\@xp{\the\toks@ \thm@headsep\fontdimen\tw@\font\relax}%
-  \else
-    \def\@tempb{\newline}%
-    \ifx\@tempb\@tempa
-      \toks@\@xp{\the\toks@ \thm@headsep\z@skip
-        \def\thmheadnl{\newline}}%
-    \else
-      \toks@\@xp{\the\toks@ \thm@headsep#8\relax}%
-    \fi
-  \fi
-  \begingroup
-  \thm@space@setup
-  \@defaultunits\@tempskipa#2\thm@preskip\relax\@nnil
-  \@defaultunits\@tempskipb#3\thm@postskip\relax\@nnil
-  \xdef\@gtempa{\thm@preskip\the\@tempskipa
-    \thm@postskip\the\@tempskipb\relax}%
-  \endgroup
-  \@temptokena\@xp{\@gtempa
-    \thm@headfont{#6}\thm@headpunct{#7}%
-  }%
-  \@ifempty{#9}{%
-    \let\thmhead\thmhead@plain
-  }{%
-    \@namedef{thmhead@#1}##1##2##3{#9}%
-    \@temptokena\@xp{\the\@temptokena
-      \@xp\let\@xp\thmhead\csname thmhead@#1\endcsname}%
-  }%
-  \@xp\xdef\csname th@#1\endcsname{\the\toks@ \the\@temptokena}%
-}
-\DeclareRobustCommand{\qed}{%
-  \ifmmode \mathqed
-  \else
-    \leavevmode\unskip\penalty9999 \hbox{}\nobreak\hfill
-    \quad\hbox{\qedsymbol}%
-  \fi
-}
-\let\QED@stack\@empty
-\let\qed@elt\relax
-\newcommand{\pushQED}[1]{%
-  \toks@{\qed@elt{#1}}\@temptokena\expandafter{\QED@stack}%
-  \xdef\QED@stack{\the\toks@\the\@temptokena}%
-}
-\newcommand{\popQED}{%
-  \begingroup\let\qed@elt\popQED@elt \QED@stack\relax\relax\endgroup
-}
-\def\popQED@elt#1#2\relax{#1\gdef\QED@stack{#2}}
-\newcommand{\qedhere}{%
-  \begingroup \let\mathqed\math@qedhere
-    \let\qed@elt\setQED@elt \QED@stack\relax\relax \endgroup
-}
-\newif\ifmeasuring@
-\newif\iffirstchoice@ \firstchoice@true
-\def\setQED@elt#1#2\relax{%
-  \ifmeasuring@
-  \else \iffirstchoice@ \gdef\QED@stack{\qed@elt{}#2}\fi
-  \fi
-  #1%
-}
-\def\qed@warning{%
-  \PackageWarning{amsthm}{The \@nx\qedhere command may not work
-    correctly here}%
-}
-\newcommand{\mathqed}{\quad\hbox{\qedsymbol}}
-\def\linebox@qed{\hfil\hbox{\qedsymbol}\hfilneg}
-\@ifpackageloaded{amsmath}{%
-  \def\math@qedhere{%
-    \@ifundefined{\@currenvir @qed}{%
-      \qed@warning\quad\hbox{\qedsymbol}%
-    }{%
-      \@xp\aftergroup\csname\@currenvir @qed\endcsname
-    }%
-  }
-  \def\displaymath@qed{%
-    \relax
-    \ifmmode
-      \ifinner \aftergroup\linebox@qed
-      \else
-        \eqno
-        \let\eqno\relax \let\leqno\relax \let\veqno\relax
-        \hbox{\qedsymbol}%
-      \fi
-    \else
-       \aftergroup\linebox@qed
-    \fi
-  }
-  \@xp\let\csname equation*@qed\endcsname\displaymath@qed
-  \def\equation@qed{%
-    \iftagsleft@
-      \hbox{\phantom{\quad\qedsymbol}}%
-      \gdef\alt@tag{%
-        \rlap{\hbox to\displaywidth{\hfil\qedsymbol}}%
-        \global\let\alt@tag\@empty
-      }%
-    \else
-      \gdef\alt@tag{%
-        \global\let\alt@tag\@empty
-        \vtop{\ialign{\hfil####\cr
-                \tagform@\theequation\cr
-                \qedsymbol\cr}}%
-        \setbox\z@
-      }%
-    \fi
-  }
-  \def\qed@tag{%
-    \global\tag@true \nonumber
-    &\omit\setboxz@h {\strut@ \qedsymbol}\tagsleft@false
-    \place@tag@gather
-    \kern-\tabskip
-    \ifst@rred \else \global\@eqnswtrue \fi \global\advance\row@\@ne \cr
-  }
-  \def\split@qed{%
-    \def\endsplit{\crcr\egroup \egroup \ctagsplit@false \rendsplit@
-      \aftergroup\align@qed
-    }%
-  }
-  \def\align@qed{%
-    \ifmeasuring@ \tag*{\qedsymbol}%
-    \else \let\math@cr@@@\qed@tag
-    \fi
-  }
-  \@xp\let\csname align*@qed\endcsname\align@qed
-  \@xp\let\csname gather*@qed\endcsname\align@qed
-%% Needs some patching up for amsmath 1.2
-}{% end of amsmath branch, start plain LaTeX branch
-  \def\math@qedhere{%
-    \@ifundefined{\@currenvir @qed}{%
-      \qed@warning \aftergroup\displaymath@qed
-    }{%
-      \@xp\aftergroup\csname\@currenvir @qed\endcsname
-    }%
-  }
-  \def\displaymath@qed{%
-    \relax
-    \ifmmode
-      \ifinner \aftergroup\aftergroup\aftergroup\linebox@qed
-      \else
-        \eqno \def\@badmath{$$}%
-        \let\eqno\relax \let\leqno\relax \let\veqno\relax
-        \hbox{\qedsymbol}%
-      \fi
-    \else
-       \aftergroup\linebox@qed
-    \fi
-  }
-  \@ifundefined{ver@leqno.clo}{%
-    \def\equation@qed{\displaymath@qed \quad}%
-  }{%
-    \def\equation@qed{\displaymath@qed}%
-  }
-  \def\@tempa#1$#2#3\@nil{%
-    \def\[{#1$#2\def\@currenvir{displaymath}#3}%
-  }%
-  \expandafter\@tempa\[\@nil
-}
-\@ifpackageloaded{amstex}{%
-  \def\@tempa{TT}%
-}{%
-  \@ifpackageloaded{amsmath}{%
-    \def\@tempb#1 v#2.#3\@nil{#2}%
-    \ifnum\@xp\@xp\@xp\@tempb\csname ver@amsmath.sty\endcsname v0.0\@nil
-       <\tw@
-      \def\@tempa{TT}%
-    \else
-      \def\@tempa{TF}%
-    \fi
-  }{%
-    \def\@tempa{TF}
-  }%
-}
-\if\@tempa
-  \renewcommand{\math@qedhere}{\quad\hbox{\qedsymbol}}%
-\fi
-\newcommand{\openbox}{\leavevmode
-  \hbox to.77778em{%
-  \hfil\vrule
-  \vbox to.675em{\hrule width.6em\vfil\hrule}%
-  \vrule\hfil}}
-\DeclareRobustCommand{\textsquare}{%
-  \begingroup \usefont{U}{msa}{m}{n}\thr@@\endgroup
-}
-\providecommand{\qedsymbol}{\openbox}
-\newenvironment{proof}[1][\proofname]{\par
-  \pushQED{\qed}%
-  \normalfont \topsep6\p@\@plus6\p@\relax
-  \trivlist
-  \item[\hskip\labelsep
-        \itshape
-    #1\@addpunct{.}]\ignorespaces
-}{%
-  \popQED\endtrivlist\@endpefalse
-}
-\providecommand{\proofname}{Proof}
-\endinput
-%%
-%% End of file `amsthm.sty'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/amsxtra.sty b/Master/texmf-dist/tex/latex/amslatex/amsxtra.sty
deleted file mode 100644
index 10a65df4a20..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/amsxtra.sty
+++ /dev/null
@@ -1,80 +0,0 @@
-%%
-%% This is file `amsxtra.sty',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% amsxtra.dtx 
-%% 
-%%% ====================================================================
-%%% @LaTeX-file{
-%%%   filename  = "amsxtra.dtx",
-%%%   version   = "1.2c",
-%%%   date      = "1999/11/15",
-%%%   time      = "14:15:41 EST",
-%%%   author    = "American Mathematical Society",
-%%%   copyright = "Copyright 1995, 1999 American Mathematical Society,
-%%%                all rights reserved.  Copying of this file is
-%%%                authorized only if either:
-%%%                (1) you make absolutely no changes to your copy,
-%%%                including name; OR
-%%%                (2) if you do make changes, you first rename it
-%%%                to some other name.",
-%%%   address   = "American Mathematical Society,
-%%%                Technical Support,
-%%%                Electronic Products and Services,
-%%%                P. O. Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   telephone = "401-455-4080 or (in the USA and Canada)
-%%%                800-321-4AMS (321-4267)",
-%%%   FAX       = "401-331-3842",
-%%%   checksum  = "41382 136 533 5124",
-%%%   email     = "tech-support@ams.org (Internet)",
-%%%   codetable = "ISO/ASCII",
-%%%   keywords  = "latex, accentedsymbol, fracwithdelims, sphat",
-%%%   supported = "yes",
-%%%   abstract  = "This package contains some seldom-used commands
-%%%                ported from AMS-TeX in 1989.",
-%%%   docstring = "The checksum field above contains a CRC-16
-%%%                checksum as the first value, followed by the
-%%%                equivalent of the standard UNIX wc (word
-%%%                count) utility output of lines, words, and
-%%%                characters.  This is produced by Robert
-%%%                Solovay's checksum utility.",
-%%% }
-%%% ====================================================================
-\ProvidesPackage{amsxtra}[1999/11/15 v1.2c]
-\@ifpackageloaded{amstex}{}{%
-  \RequirePackage{amsmath}[1996/10/01 v1.2]}
-\def\sphat{^{\mathchoice{}{}%
- {\,\,\smash[b]{\hbox{\lower4\ex@\hbox{$\m@th\widehat{\null}$}}}}%
- {\,\smash[b]{\hbox{\lower3\ex@\hbox{$\m@th\hat{\null}$}}}}}}
-\def\spcheck{^\vee}
-\def\sptilde{^\sim}
-\def\spdot{^{\hbox{\raise\ex@\hbox{\normalfont .}}}}
-\def\spddot{^{\hbox{\raise\ex@\hbox{\normalfont ..}}}}
-\def\spdddot{^{\hbox{\raise\ex@\hbox{\normalfont...}}}}
-\def\spbreve{^{\!\smash[b]{\hbox{\lower4\ex@\hbox{\u{}}}}}}
-\@ifpackageloaded{amstex}{%
-\def\fracwithdelims#1#2{\new@ifnextchar[{\fracwithdelims@#1#2}%
-  {\fracwithdelims@#1#2[\@empty]}}
-\def\fracwithdelims@#1#2[#3]#4#5{\relax
-  \ifx\@empty#3{#4\overwithdelims#1#2#5}\else
-  {#4\abovewithdelims#1#2#3\relax#5}\fi}
-}{}
-\def\accentedsymbol#1#2{%
-  \expandafter\newbox
-    \csname\expandafter\@gobble\string#1@box\endcsname
-  \expandafter\setbox
-    \csname\expandafter\@gobble\string#1@box\endcsname
-      \hbox{$\m@th#2$}%
-  \newcommand{#1}{%
-    \expandafter\copy
-      \csname\expandafter\@gobble\string#1@box\endcsname{}}%
-}
-\def~{\nobreakspace}
-\DeclareRobustCommand{\nobreakspace}{\unskip\nobreak\ \ignorespaces}
-\endinput
-%%
-%% End of file `amsxtra.sty'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/ifoption.sty b/Master/texmf-dist/tex/latex/amslatex/ifoption.sty
deleted file mode 100644
index 7e6e9039dbe..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/ifoption.sty
+++ /dev/null
@@ -1,79 +0,0 @@
-%%
-%% This is file `ifoption.sty',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% ifoption.dtx 
-%% 
-%%% ====================================================================
-%%% @LaTeX-doc-source-file{
-%%%   filename  = "ifoption.dtx",
-%%%   version   = "1.02",
-%%%   date      = "2002/03/04",
-%%%   time      = "16:33:16 EST",
-%%%   author    = "Michael J Downes",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support@ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "",
-%%%   checksum  = "06695 170 563 5432",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{ifoption}[2002/03/04 v1.02]
-\let\@xp\expandafter \let\@nx\noexpand
-\def\@True{00}
-\def\@False{01}
-\def\CurrentPackage{\@currname}
-\let\CurrentClass\CurrentPackage
-\newcommand{\IfOption}{}
-\def\IfPackageOption{\@ifpackagewith}
-\def\IfClassOption{\@ifclasswith}
-\def\IfOption{%
-  \ifx\@currext\@pkgextension \@xp\IfPackageOption
-  \else \@xp\IfClassOption
-  \fi
-  \@currname
-}
-\newcommand{\DeclareExclusiveOptions}[1]{%
-  \xdef\@declaredoptions{\@declaredoptions,#1}%
-  \gdef\ProcessExclusiveOptions{\relax}%
-  \@for\CurrOption:=#1\do{%
-    \@xp\deo@a\csname ds@\CurrOption\@xp\endcsname\@xp{\CurrOption}{#1}%
-  }%
-}
-\def\DeclareBooleanOption{\DeclareExclusiveOptions}
-\def\deo@a#1#2#3{%
-  \def#1{%
-    \g@addto@macro\ProcessExclusiveOptions{\OptionsFalseTrue{#3}{#2}}%
-  }%
-}
-\def\cull@options#1,{%
-  \@xp\ifx\csname ds@#1\@gobble\@percentchar\@empty\endcsname\@False
-  \else #1,\fi
-  \cull@options
-}
-
-\newcommand{\OptionsFalseTrue}[2]{%
-  \begingroup
-  \@for\CurrentOption:=#1\do{%
-    \@xp\let\csname ds@\CurrentOption\endcsname\@False
-  }%
-  \let\ds@\@False
-  \@xp\xdef\csname opt@\@currname.\@currext\endcsname{%
-    \@xp\@xp\@xp\cull@options\csname opt@\@currname.\@currext\endcsname
-      ,\@firstoftwo\@firstoftwo,#2%
-  }%
-  \endgroup
-}
-\endinput
-%%
-%% End of file `ifoption.sty'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/mathscinet.sty b/Master/texmf-dist/tex/latex/amslatex/mathscinet.sty
deleted file mode 100644
index 80ed5d99e57..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/mathscinet.sty
+++ /dev/null
@@ -1,178 +0,0 @@
-%%
-%% This is file `mathscinet.sty',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% mathscinet.dtx 
-%% 
-%%% ====================================================================
-%%% @LaTeX-doc-source-file{
-%%%   filename  = "mathscinet.dtx",
-%%%   version   = "2.01",
-%%%   date      = "2004/06/30",
-%%%   time      = "12:00:17 EDT",
-%%%   author    = "Michael J Downes and David M. Jones",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support@ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "",
-%%%   checksum  = "34681 595 2175 20194",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-%%%
-\NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{mathscinet}[2002/04/17 v1.05]
-\RequirePackage{textcmds}\relax
-\providecommand\setboxz@h{\setbox\z@\hbox}
-\providecommand{\bold}{\mathbf}
-\providecommand{\scr}{\mathcal}
-\AtBeginDocument{%
-    \@ifundefined{mathfrak}{%
-        \providecommand{\germ}{%
-            \PackageError{mathscinet}{To use the \string\germ\space
-                command, please load the amsfonts package}\@ehc
-        }%
-    }{%
-        \providecommand{\germ}{\mathfrak}%
-    }%
-}
-\providecommand{\romsup}{\tsup}
-\providecommand{\asup}{\tsup}
-\AtBeginDocument{\providecommand{\hslash}{\hbar}}
-\ProvideTextCommandDefault{\rasp}{\leavevmode\raise.45ex\hbox{$\rhook$}}
-\ProvideTextCommandDefault{\lasp}{\leavevmode\raise.45ex\hbox{$\lhook$}}
-\ProvideTextCommand{\Dbar}{T1}{\DJ}
-
-\ProvideTextCommandDefault{\Dbar}{%
-    \leavevmode\lower.5ex\rlap{\hskip-.07em\accent"16}D%
-}
-\ProvideTextCommand{\dbar}{T1}{\dj}
-\ProvideTextCommandDefault{\dbar}{%
-    \begingroup
-        \edef\@tempa{\scdefault}%
-        \ifx\@tempa\f@shape
-            \dimen@-.75ex
-            \dimen@i-.08em
-        \else
-            \dimen@.02ex
-            \dimen@i.1em
-        \fi
-        \leavevmode\raise\dimen@\rlap{\hskip\dimen@i\char"16}d%
-    \endgroup
-}
-\ProvideTextCommandDefault{\cprime}{\tprime}
-\ProvideTextCommandDefault{\cdprime}{\tprime\tprime}
-\ProvideTextCommandDefault{\bud}{\cdprime}
-\ProvideTextCommandDefault{\cydot}{\leavevmode\raise.4ex\hbox{.}}
-\def\save@sf{%
-    \ifmmode\else\global\mathchardef\accent@spacefactor\spacefactor\fi
-}
-\def\restore@sf{\ifmmode\else\spacefactor\accent@spacefactor\fi}
-\def\@underaccent#1#2#3{%
-    \leavevmode
-    \begingroup
-        \ifmmode\let\@mathtoggle$\else\let\@mathtoggle\relax\fi
-        \setboxz@h{\@mathtoggle#3\save@sf\@mathtoggle}%
-        \setbox\@ne\hb@xt@\wd\z@{%
-            \hss\fontshape\updefault\rmfamily#1\char#2\hss
-        }%
-        \dimen@\ht\@ne
-        \advance\dimen@\dp\z@
-        \advance\dimen@.2ex
-        \setboxz@h{\lower\dimen@\rlap{\copy\@ne}\unhbox\z@}%
-        \ifdim\ht\@ne>1ex
-            \advance\dimen@-1.2ex
-            \dp\z@\dimen@
-        \fi
-        \box\z@
-        \restore@sf
-    \endgroup
-}
-\DeclareTextCommandDefault{\utilde}{\@underaccent\@empty{`\~}}
-\DeclareTextCommandDefault{\uarc}{\@underaccent\@empty{'025}}
-\DeclareTextCommandDefault{\lfhook}{\@underaccent\supsize{`\,}}
-\DeclareTextCommandDefault{\dudot}{\@underaccent\@empty{'177}}
-\DeclareTextCommandDefault{\udot}{\d}
-\DeclareTextCommand{\polhk}{OT4}{\k}
-\DeclareTextCommand{\polhk}{T1}{\k}
-\DeclareTextCommand{\polhk}{OT1}[1]{\TextSymbolUnavailable{\k{#1}}#1}
-\DeclareTextCompositeCommand{\polhk}{OT1}{a}{\msc@ogonek {.6}{.07} a}
-\DeclareTextCompositeCommand{\polhk}{OT1}{A}{\msc@ogonek {.6}{.07} A}
-\DeclareTextCompositeCommand{\polhk}{OT1}{e}{\msc@ogonek   0 {.06} e}
-\DeclareTextCompositeCommand{\polhk}{OT1}{E}{\msc@ogonek{.35}{.07} E}
-\DeclareTextCompositeCommand{\polhk}{OT1}{i}{\msc@ogonek {.2}{.07} i}
-\DeclareTextCompositeCommand{\polhk}{OT1}{I}{\msc@ogonek {.2}{.07} I}
-\DeclareTextCompositeCommand{\polhk}{OT1}{u}{\msc@ogonek {.6}{.07} u}
-\DeclareTextCompositeCommand{\polhk}{OT1}{U}{\msc@ogonek   0 {.05} U}
-\DeclareTextCompositeCommand{\polhk}{OT1}{o}{\msc@ogonek   0 {.07} o}
-\DeclareTextCompositeCommand{\polhk}{OT1}{O}{\msc@ogonek   0 {.05} O}
-\DeclareTextCompositeCommand{\polhk}{T1}{i}{\msc@ogonek@a   0  i}
-\DeclareTextCompositeCommand{\polhk}{T1}{I}{\msc@ogonek@a   0  I}
-\DeclareTextCompositeCommand{\polhk}{T1}{u}{\msc@ogonek@a {.6} u}
-\DeclareTextCompositeCommand{\polhk}{T1}{U}{\msc@ogonek@a   0  U}
-\DeclareTextCompositeCommand{\polhk}{T1}{o}{\msc@ogonek@a   0  o}
-\DeclareTextCompositeCommand{\polhk}{T1}{O}{\msc@ogonek@a   0  O}
-\DeclareTextCompositeCommand{\polhk}{OT4}{i}{\msc@ogonek {.2}{.07} i}
-\DeclareTextCompositeCommand{\polhk}{OT4}{I}{\msc@ogonek {.2}{.07} I}
-\DeclareTextCompositeCommand{\polhk}{OT4}{u}{\msc@ogonek {.6}{.07} u}
-\DeclareTextCompositeCommand{\polhk}{OT4}{U}{\msc@ogonek   0 {.05} U}
-\DeclareTextCompositeCommand{\polhk}{OT4}{o}{\msc@ogonek   0 {.07} o}
-\DeclareTextCompositeCommand{\polhk}{OT4}{O}{\msc@ogonek   0 {.05} O}
-\def\msc@ogonek#1#2#3{%
-    \begingroup
-        \setboxz@h{#3\save@sf}%
-        \dimen@\wd\z@
-        \ooalign{%
-            \unhbox\z@\crcr
-            \hidewidth
-                \setboxz@h{\kern#1\dimen@\supsize$\lhook$}%
-                \dimen@\ht\z@
-                \advance\dimen@-#2ex\relax
-                \lower\dimen@\box\z@
-            \hidewidth
-        }%
-        \restore@sf
-    \endgroup
-}
-\def\msc@ogonek@a#1#2{%
-    \begingroup
-        \ooalign{%
-            #2\save@sf\crcr
-            \hidewidth
-                \raise0.02ex\hbox{\kern#1ex\char'014}%
-            \hidewidth
-        }%
-        \restore@sf
-    \endgroup
-}
-\DeclareTextCommand{\soft}{OT4}{\v}
-\DeclareTextCommand{\soft}{T1}{\v}
-\DeclareTextCommand{\soft}{OT1}{\v}
-
-\DeclareTextCompositeCommand{\soft}{OT1}{t}{\msc@soft{t}\@ne{.5ex}}
-\DeclareTextCompositeCommand{\soft}{OT1}{d}{\msc@soft{d}{.925}{.95ex}}
-\DeclareTextCompositeCommand{\soft}{OT1}{l}{\msc@soft{l}{.95}{.4ex}}
-\DeclareTextCompositeCommand{\soft}{OT1}{L}{\msc@soft{L}{.975}{.8ex}}
-
-\DeclareTextCompositeCommand{\soft}{OT4}{t}{\msc@soft{t}\@ne{.5ex}}
-\DeclareTextCompositeCommand{\soft}{OT4}{d}{\msc@soft{d}{.925}{.95ex}}
-\DeclareTextCompositeCommand{\soft}{OT4}{l}{\msc@soft{l}{.95}{.4ex}}
-\DeclareTextCompositeCommand{\soft}{OT4}{L}{\msc@soft{L}{.975}{.8ex}}
-\def\msc@soft#1#2#3{%
-    \leavevmode
-    \begingroup
-        \setboxz@h{#1}%
-        \raise#2\ht\z@\rlap{\kern#3\supsize,}\unhbox\z@
-    \endgroup
-}
-\endinput
-%%
-%% End of file `mathscinet.sty'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/pcatcode.sty b/Master/texmf-dist/tex/latex/amslatex/pcatcode.sty
deleted file mode 100644
index a9431543c5f..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/pcatcode.sty
+++ /dev/null
@@ -1,166 +0,0 @@
-%%
-%% This is file `pcatcode.sty',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% pcatcode.dtx 
-%% 
-%%% ====================================================================
-%%% @LaTeX-doc-source-file{
-%%%   filename  = "pcatcode.dtx",
-%%%   version   = "1.04",
-%%%   date      = "2002/04/16",
-%%%   time      = "09:20:52 EDT",
-%%%   author    = "Michael J Downes",
-%%%   copyright = "Copyright 2001 American Mathematical Society",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support@ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "The pcatcode package changes LaTeX package loading
-%%%                internals so that all subsequently loaded packages
-%%%                can rely on having normal catcodes in effect.",
-%%%   license   = "Artistic",
-%%%   checksum  = "25118 359 1469 13319",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-\begingroup\let\e\endlinechar\iffalse\
-\fi\chardef\E\e\e13\chardef\n\catcode\e\catcode\e5\relax\relax
-\chardef\s\catcode32\chardef\t10\catcode32\t
-\chardef\c\catcode37 \catcode37 14 % percent
-\chardef\=\catcode61 \catcode61 12 % equal sign
-\chardef\l=\catcode123 \catcode123=1 % left brace
-\chardef\r=\catcode125 \catcode125=2 % right brace
-\chardef\[=\catcode91 \catcode91=12 % left bracket
-\chardef\]=\catcode93 \catcode93=12 % right bracket
-\chardef\^=\catcode94 \catcode94=7 % hat
-\chardef\.=\catcode46 \catcode46=12 % period
-\chardef\/=\catcode47 \catcode47=12 % slash
-\edef\c{%
-  \endgroup
-  \def\noexpand\pcat@restore{%
-    \catcode\number\e=\number\n \catcode32=\number\s
-    \catcode123=\number\l \catcode125=\number\r
-    \catcode37=\number\c \catcode61=\number\=%
-    \catcode91=\number\[\catcode93=\number\]\catcode94=\number\^%
-    \catcode46=\number\.\catcode47=\number\/%
-    \endlinechar=\number\E \relax
-  }%
-}
-\c
-\endlinechar13\catcode13\string=5\relax\relax
-\catcode32\string=10 \catcode37 14\relax\relax
-\catcode61 12\catcode123=1\catcode125=2\catcode91=12\catcode93=12\relax
-\catcode46=12\catcode47=12\catcode94=7\relax
-\NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{pcatcode}[2002/04/16 v1.04]
-\def\NormalCatcodes{%
-  \endlinechar=13%
-  \catcode33=12\catcode34=12\catcode35=6\catcode36=3\catcode37=14%
-  \catcode38=4\catcode39=12\catcode40=12\catcode41=12\catcode42=12%
-  \catcode43=12\catcode44=12\catcode45=12\catcode46=12\catcode47=12%
-  \catcode58=12\catcode59=12\catcode60=12\catcode61=12\catcode62=12%
-  \catcode63=12\catcode91=12\catcode92=0\catcode93=12\catcode94=7%
-  \catcode95=8\catcode96=12\catcode123=1\catcode124=12\catcode125=2%
-  \catcode126=13\catcode32=10\catcode13=5\catcode9=10\catcode10=12%
-  \relax
-}
-\def\CatcodeStack{}
-\begingroup \escapechar=\m@ne \let\s\string
-\xdef\pcat@otherchars{%
-  \s\!\s\"\s\#\s\$\s\%\s\&\s\'\s\(\s\)\s\*\s +\s\,\s\-\s\.\s\/\s\:%
-  \s\;\s\<\s\=\s\>\s\?\s\[\s\\\s\]\s\^\s\_\s\`\s\{\s\|\s\}\s\~%
-}
-\endgroup
-\gdef\PushCatcodes{%
-  \xdef\CatcodeStack{%
-    \expandafter\PushCat@a\pcat@otherchars\ \
-    \^^I\^^J{T \@gobbletwo}\@empty
-    \relax
-    {\CatcodeStack}}%
-}
-\def\PushCat@a#1{\catcode\number`#1=\number\catcode`#1 \PushCat@a}
-\PushCatcodes \NormalCatcodes
-\def\PopCatcodes{\expandafter\PopCat@a\CatcodeStack}
-\def\PopCat@a#1#{#1\xdef\CatcodeStack}
-\def\CCSdo#1{ (\string#1\@iden{:\number\catcode`#1)\CCSdo}}
-\def\CurrentCatcodesSubset{%
-  \romannumeral 0\CCSdo\^^I\^^J\^^L\^^M\ \!\"\#\$\%\&\'\(\)\*+\,\-\.\/\:\;\<\=\>\?\@\[\\\]\^\_\`\{\|\}{\~\@gobbletwo}:\number\catcode`\~)%
-}
-\begingroup\pcat@restore
-\begingroup
-\catcode`\3="3 \catcode`\4="4 \catcode`\7="7 \catcode`\8="8
-\catcode`\A="A \catcode`\B="B \catcode`\C="C \catcode`\D="D
-\gdef\fls@let#1#2{%
-  \ifx\@@undefined#1\else\errmessage{\string#1 already defined}\fi
-  \begingroup
-  \lccode`\3=`#2\lccode`\7=`#2\lccode`\8=`#2%
-  \lccode`\B=`#2\lccode`\C=`#2\lccode`\D=`#2\relax
-  \ifnum\catcode`#2=\active
-    \def\do##1{\noexpand\do\noexpand##1\noexpand}%
-    \lowercase{%
-      \xdef\fls@active@characters{%
-        \fls@active@characters
-        \do#1D}%
-    }%
-  \fi
-  \aftergroup\global \aftergroup\let \aftergroup#1\aftergroup=%
-  \lowercase{\aftergroup} %
-  \lowercase{\expandafter\endgroup
-    \ifcase\catcode`#2 %
-      0\or \bgroup\or \egroup\or 3\or 4\or 5\or 6\or 7\or 8\or 9\or
-      \@sptoken\or B\or C\else D\fi
-  }%
-}
-\endgroup
-\gdef\FutureLetSetup{%
-  \gdef\fls@active@characters{}%
-  \fls@let\dl@@space\ %
-  \fls@let\dl@@exclam\!%
-  \fls@let\dl@@dblquote\"%
-  \fls@let\dl@@hash\#%
-  \fls@let\dl@@dollar\$%
-  \fls@let\dl@@ampersand\&%
-  \fls@let\dl@@rquote\'%
-  \fls@let\dl@@lparen\(%
-  \fls@let\dl@@rparen\)%
-  \fls@let\dl@@star\*%
-  \fls@let\dl@@plus\+%
-  \fls@let\dl@@comma\,%
-  \fls@let\dl@@hyphen\-%
-  \fls@let\dl@@period\.%
-  \fls@let\dl@@slash\/%
-  \fls@let\dl@@colon\:%
-  \fls@let\dl@@semicolon\;%
-  \fls@let\dl@@less\<%
-  \fls@let\dl@@equal\=%
-  \fls@let\dl@@greater\>%
-  \fls@let\dl@@question\?%
-  \fls@let\dl@@lbracket\[%
-  \fls@let\dl@@rbracket\]%
-  \fls@let\dl@@hat\^%
-  \fls@let\dl@@underscore\_%
-  \fls@let\dl@@lquote\`%
-  \fls@let\dl@@lbrace\{%
-  \fls@let\dl@@vert\|%
-  \fls@let\dl@@rbrace\}%
-  \fls@let\dl@@tilde\~%
-}
-\AtBeginDocument{\FutureLetSetup}
-\gdef\FutureLetReset{%
-  \def\do##1##2{\let##1= ##2}%
-  \fls@active@characters
-  \let\do\relax
-}
-\endgroup
-\endinput \PopCatcodes\pcat@restore
-\endinput
-%%
-%% End of file `pcatcode.sty'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/rkeyval.sty b/Master/texmf-dist/tex/latex/amslatex/rkeyval.sty
deleted file mode 100644
index 48ae11173e0..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/rkeyval.sty
+++ /dev/null
@@ -1,454 +0,0 @@
-%%
-%% This is file `rkeyval.sty',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% rkeyval.dtx 
-%% 
-%%% ====================================================================
-%%% @LaTeX-doc-source-file{
-%%%   filename  = "rkeyval.dtx",
-%%%   version   = "2.00",
-%%%   date      = "2004/06/28",
-%%%   time      = "15:19:29 EDT",
-%%%   author    = "Michael J Downes and David M. Jones",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support@ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "Key-value scanning functions with more restrictive
-%%%                syntax than the standard keyval package. This permits
-%%%                some improvements in the error-checking.",
-%%%   checksum  = "44721 1116 3178 30537",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{rkeyval}[2004/05/05 v1.08]
-\let\@xp\expandafter
-\let\@nx\noexpand
-\long\def\@gobblethree#1#2#3{}
-\long\def\@nilgobble#1\@nil{}
-\@ifundefined{@emptytoks}{\csname newtoks\endcsname\@emptytoks}{}
-\@ifundefined{@temptokenb}{\csname newtoks\endcsname\@temptokenb}{}
-\def\@append#1#2#3{\@xp\def\@xp#2\@xp{#2#1{#3}}}
-\def\star@#1#2{%
-    \def\star@a##1{#1}%
-    \def\star@b{#1{#2}}%
-    \futurelet\@let@token\star@test
-}
-
-\def\star@test{\ifx*\@let@token \let\star@b\star@a\fi \star@b}
-\@ifundefined{NormalCatcodes}{\RequirePackage{pcatcode}\relax}{}
-\PushCatcodes\NormalCatcodes
-\def\extract@group#1{%
-    \@xp\extract@group@a\string#1\@nil
-}
-\def\extract@group@a#1#2'{#2\@nilgobble}
-\def\set@property#1{%
-    \begingroup
-        \edef\@tempa{\extract@group#1}%
-        \edef\@tempa{%
-            \@nx\@append\@nx#1\@xp\@nx\csname \@tempa,aux\endcsname
-        }%
-    \@xp\endgroup
-    \@tempa
-}
-\def\get@property#1#2{%
-    \get@nth@property#1#2\m@ne
-}
-\def\get@nth@property#1#2#3{%
-    \begingroup
-        \edef\@tempa{\extract@group#2}%
-        \@tempcnta#3\relax
-        \@tempcntb\z@
-        \@xp\scan@properties\@xp#2\csname \@tempa,aux\endcsname
-        \edef\@tempa{\def\@nx#1{\@tempa}}%
-    \@xp\endgroup
-    \@tempa
-}
-\def\scan@properties#1#2{%
-    \begingroup
-        \def\@tempa{#1}%
-        \let\@tempc\@empty
-        \@xp\find@property #2 \@nil\@nil
-        \edef\@tempa{\def\@nx\@tempa{\@tempc}}%
-    \@xp\endgroup
-    \@tempa
-}
-\def\find@property#1#2{%
-    \ifx\@nil#1%
-    \else
-        \def\@tempb{#1}%
-        \ifx\@tempa\@tempb
-            \ifnum\@tempcnta<\z@
-                \def\@tempc{#2}%
-            \else
-                \advance\@tempcntb\@ne
-                \ifnum\@tempcntb=\@tempcnta
-                    \def\@tempc{#2}%
-                \fi
-            \fi
-        \fi
-        \@xp\find@property
-    \fi
-}
-\def\reset@property#1#2{%
-    \reset@nth@property#1\m@ne{#2}%
-}
-\def\reset@nth@property#1#2#3{%
-    \begingroup
-        \edef\@tempa{\extract@group#1}%
-        \@tempcnta#2\relax
-        \@temptokena{#3}%
-        \toks@\@emptytoks
-        \@tempcntb\z@
-        \@xp\reset@scan\@xp#1\csname \@tempa,aux\endcsname
-        \edef\@tempa{%
-            \def\@xp\@nx\csname \@tempa,aux\endcsname{\the\toks@}%
-        }%
-    \@xp\endgroup
-    \@tempa
-}
-\def\reset@scan#1#2{%
-    \begingroup
-        \def\@tempa{#1}%
-        \@xp\reset@scan@a #2 \@nil\@nil
-        \edef\@tempa{\toks@{\the\toks@}}%
-    \@xp\endgroup
-    \@tempa
-}
-\def\reset@scan@a#1#2{%
-    \ifx\@nil#1%
-    \else
-        \def\@tempb{#1}%
-        \ifx\@tempa\@tempb
-            \ifnum\@tempcnta<\z@
-                \@temptokenb\@temptokena
-            \else
-                \advance\@tempcntb\@ne
-                \ifnum\@tempcntb=\@tempcnta
-                    \@temptokenb\@temptokena
-                \fi
-            \fi
-        \else
-            \@temptokenb{#2}%
-        \fi
-        \edef\@tempb{%
-            \toks@{\the\toks@ \@nx#1{\the\@temptokenb}}%
-        }%
-        \@tempb
-        \@xp\reset@scan@a
-    \fi
-}
-\def\fsa@l{\futurelet\@let@token\fsa@t}
-\def\fsa@b{\afterassignment\fsa@l \let\@let@token= }
-\def\fsa@c#1{\aftergroup#1\fsa@l}
-\let\fsa@n\@empty
-\let\fsa@t\@empty
-\newtoks\rsk@toks
-\def\rkvIfEmpty#1#2{%
-    \@xp\ifx\csname#1'#2\endcsname\@empty
-        \@xp\@firstoftwo
-    \else
-        \@xp\@secondoftwo
-    \fi
-}
-\def\rkvIfAdditive#1{%
-    \@xp\let\@xp\@let@token \csname \rkv@setter#1\endcsname
-    \afterassignment\@nilgobble
-    \@xp\let\@xp\@let@token \@let@token \@empty\@empty\@nil
-    \ifx\@let@token\DSK@append
-        \@xp\@firstoftwo
-    \else
-        \@xp\@secondoftwo
-    \fi
-}
-\def\rkv@setter#1{set:\@xp\@gobble\string#1}
-\def\rkv@DSAK#1#2{%
-    \addto@group@reset#1{\let#1\@empty}%
-    \edef\@tempa{\def\csname \rkv@setter#1\endcsname}%
-    \@tempa{#2#1}%
-}
-\def\rkv@DDK#1{%
-    \addto@group@reset#1{\def#1{\@empty}}%
-    \@xp\let\csname \rkv@setter#1\endcsname\@gobble
-}
-\def\DSK@def#1{%
-    \ifx#1\@empty\else
-        \PackageWarningNoLine{rkeyval}%
-            {Key \string#1 should not be repeated}%
-    \fi
-    \DSK@redef#1%
-}
-\def\DSK@redef#1#2{%
-    \@ifempty{#2}{\@gobble}{%
-        \def#1{#2}%
-        \set@property#1
-    }%
-}
-\def\init@group@reset#1{%
-    \begingroup
-        \edef\@tempb{\@xp\@nx\csname #1@reset\endcsname}%
-        \@xp\ifx\@tempb\relax
-            \@xp\xdef\@tempb{\let \csname #1,aux\endcsname\@nx\@empty}
-        \fi
-    \endgroup
-}
-\def\addto@group@reset#1{%
-    \begingroup
-        \edef\@tempa{\extract@group#1}%
-        \init@group@reset\@tempa
-        \edef\@tempa{%
-            \@nx\g@addto@macro\@xp\@nx\csname\@tempa @reset\endcsname
-        }%
-    \@xp\endgroup
-    \@tempa
-}
-\newcommand{\DefineSimpleKey}[2]{%
-    \@xp\rkv@DSAK
-        \csname #1'#2\endcsname
-        {\DSK@def}%
-}
-\newcommand{\DefineSupersedingKey}[2]{%
-    \@xp\rkv@DSAK
-        \csname #1'#2\endcsname
-        {\DSK@redef}%
-}
-\newcommand{\DefineAdditiveKey}[3]{%
-    \@xp\rkv@DSAK
-        \csname #1'#2\endcsname
-        {\DSK@append#3}%
-}
-\def\DSK@append#1#2#3{%
-    \@ifempty{#3}{\@gobble}{%
-        \@append#1#2{#3}%
-        \set@property#2
-    }%
-}
-\newcommand{\DefineDummyKey}[2]{%
-    \@xp\rkv@DDK \csname #1'#2\endcsname
-}
-\newcommand{\RestrictedSetKeys}[3]{%
-    \global\rsk@toks\@xp{\csname #2@reset\endcsname}%
-    \def\rsk@finish{#3}%
-    \gdef\rsk@set{\@xp\rsk@set@a\csname#2'}%
-    #1\relax
-    \begingroup
-        \rsk@changecase
-        \aftergroup\rsk@set
-        \let\fsa@t\rsk@z
-        \fsa@l
-}
-\def\rsk@unknown@key#1{%
-    \PackageWarning{rkeyval}{Unknown key: \string#1}%
-    \@xp\def\csname\rkv@setter#1\endcsname {\DSK@redef#1}%
-}
-\def\rsk@z{%
-    \ifx\bgroup\@let@token
-        \let\fsa@t\rsk@b
-        \let\fsa@n\fsa@b
-    \else
-        \ifx\@sptoken\@let@token
-            \let\fsa@n\fsa@b
-        \else
-            \rsk@errf
-        \fi
-    \fi
-    \fsa@n
-}
-\def\rsk@a{%
-    \ifx\@let@token\@sptoken
-        \let\fsa@n\fsa@b
-    \else
-        \ifx\@let@token\par
-            \let\fsa@n\fsa@b
-        \else
-            \ifx,\@let@token
-                \endgroup
-                \let\fsa@t\rsk@b
-                \let\fsa@n\fsa@b
-            \else
-                \ifx\egroup\@let@token
-                    \endgroup
-                    \let\fsa@n\rsk@end
-                \else
-                    \endgroup
-                    \let\fsa@n\rsk@erraa
-                \fi
-            \fi
-        \fi
-    \fi
-    \fsa@n
-}
-\def\rsk@b{%
-    \ifcat\@nx\@let@token A%
-        \let\fsa@t\rsk@c
-        \let\fsa@n\fsa@c
-    \else
-        \ifx\@sptoken\@let@token
-            \let\fsa@n\fsa@b
-        \else
-            \rsk@bb
-        \fi
-    \fi
-    \fsa@n
-}
-\def\rsk@bb{%
-    \ifx,\@let@token
-        \let\fsa@n\fsa@b
-    \else
-        \ifx\bgroup\@let@token
-            \let\fsa@n\rsk@errb
-        \else
-            \ifx\egroup\@let@token
-                \let\fsa@n\rsk@end
-            \else
-                \ifx\par\@let@token
-                    \let\fsa@n\fsa@b
-                \else
-                    \let\fsa@n\rsk@errc
-                \fi
-            \fi
-        \fi
-    \fi
-}
-\def\rsk@c{%
-    \ifcat\@nx\@let@token A%
-        \let\fsa@n\fsa@c
-    \else
-        \ifx\@sptoken\@let@token
-            \let\fsa@t\rsk@d
-            \let\fsa@n\fsa@b
-        \else
-            \ifx=\@let@token
-                \let\saw@equal T%
-                \let\fsa@t\rsk@d
-                \let\fsa@n\fsa@b
-            \else
-                \rsk@cb
-            \fi
-        \fi
-    \fi
-    \fsa@n
-}
-\def\rsk@cb{%
-    \ifx,\@let@token
-        \let\fsa@n\rsk@errc
-    \else
-        \ifcat\@nx\@let@token .%
-            \let\fsa@n\fsa@c
-        \else
-            \ifx\bgroup\@let@token
-                \let\fsa@n\rsk@noequal
-            \else
-                \ifx\egroup\@let@token
-                    \let\fsa@n\rsk@noequal
-                \else
-                    \let\fsa@n\rsk@errc
-                \fi
-            \fi
-        \fi
-    \fi
-}
-\let\saw@equal=F
-\def\rsk@d{%
-    \ifx\bgroup\@let@token
-        \ifx\saw@equal T%
-            \aftergroup\endcsname
-            \rsk@endcase
-            \let\fsa@n\endgroup
-        \else
-            \let\saw@equal T%
-            \let\fsa@n\rsk@noequal
-        \fi
-    \else
-        \ifx\@sptoken\@let@token
-            \let\fsa@n\fsa@b
-        \else
-            \ifx=\@let@token
-                \let\saw@equal T%
-                \let\fsa@n\fsa@b
-            \else
-                \let\fsa@n\rsk@erre
-            \fi
-        \fi
-    \fi
-    \fsa@n
-}
-\def\rsk@casesensitive{%
-    \let\rsk@changecase\@empty
-    \let\rsk@endcase\@empty
-}
-\def\rsk@startlc{\aftergroup\lowercase\aftergroup{\iffalse}\fi}
-\def\rsk@endlc{\iffalse{\fi\aftergroup}}
-\def\rsk@lowercase{%
-    \let\rsk@changecase\rsk@startlc
-    \let\rsk@endcase\rsk@endlc
-}
-\rsk@lowercase
-\def\rsk@resume{%
-    \begingroup
-        \rsk@changecase
-        \aftergroup\rsk@set
-        \let\fsa@t\rsk@a
-        \begingroup
-            \catcode\endlinechar=\active
-            \lccode`\~=\endlinechar
-            \lowercase{\let~\par}%
-            \fsa@l
-}
-\def\rsk@set@a#1#2{%
-    \star@{\rsk@set@b#1{#2}}{}%
-}
-\def\rsk@set@b#1#2#3{%
-    \@xp\ifx \csname\rkv@setter#1\endcsname \relax
-        \rsk@unknown@key#1%
-    \fi
-    \edef\@tempa{\@xp\@nx\csname \rkv@setter#1\endcsname}%
-    \toks@\@xp{\@tempa{#2}{#3}}%
-    \edef\@tempa{%
-        \global\rsk@toks{\the\rsk@toks \the\toks@}%
-    }%
-    \@tempa
-    \rsk@resume
-}
-\def\rsk@end{%
-        \global\let\rsk@set\rsk@terminate
-        \rsk@endcase
-    \endgroup
-    \endcsname
-    \afterassignment\rsk@finish
-    \toks@\bgroup
-}
-\def\rsk@terminate{\@xp\@gobble\csname}
-\def\NoCommaWarning{\PackageWarning{rkeyval}{Missing comma}}%
-%%  %    \begin{macro}{\NoCommaError}
-%%  %    \begin{macrocode}
-%%  \def\NoCommaError{\rsk@err{Missing comma}\@ehc}
-%%  %    \end{macrocode}
-%%  %    \end{macro}
-\def\rsk@nocomma{\NoCommaWarning}
-\def\rsk@err{\PackageError{rkeyval}}
-\def\rsk@errf{\rsk@err{Missing open brace}\@ehc\rsk@b}
-\long\def\rsk@erraa{\rsk@nocomma \let\fsa@t\rsk@b \fsa@l}
-\def\rsk@errb{\rsk@err{Missing key name}\@ehc\rsk@d}
-\def\rsk@errc{\rsk@err{Invalid key name character}\@ehc\fsa@b}
-\def\rsk@noequal{\rsk@err{Missing equal sign}\@ehc\rsk@d}
-\def\rsk@erre#1,{%
-        \rsk@err{Missing open brace for key value}\@ehc
-        \iffalse{\fi
-    \endgroup
-    \endcsname
-    \rsk@endcase }{#1},%
-}
-\PopCatcodes
-\endinput
-%%
-%% End of file `rkeyval.sty'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/rkvbeta.sty b/Master/texmf-dist/tex/latex/amslatex/rkvbeta.sty
deleted file mode 100644
index 693ad698a91..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/rkvbeta.sty
+++ /dev/null
@@ -1,189 +0,0 @@
-%%
-%% This is file `rkeyval.sty',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% rkeyval.dtx 
-%% 
-%%% ====================================================================
-%%% @LaTeX-doc-source-file{
-%%%   filename  = "rkeyval.dtx",
-%%%   version   = "1.02",
-%%%   date      = "2000/04/07",
-%%%   time      = "12:01:25 EDT",
-%%%   author    = "Michael J Downes",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support@ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "Key-value scanning functions with more restrictive
-%%%                syntax than the standard keyval package. This permits
-%%%                some improvements in the error-checking.",
-%%%   checksum  = "41751 427 1502 13407",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{rkvbeta}[2000/04/07 v1.02]
-\let\@xp\expandafter \let\@nx\noexpand
-\def\@append#1#2#3{\@xp\def\@xp#2\@xp{#2#1{#3}}}
-\edef\@tempa{%
-  \@nx\AtEndOfPackage{\catcode\number`\'=\number\catcode`\'\relax}%
-}
-\@tempa
-\catcode`\'=12
-\def\fsa@l{\futurelet\@let@token\fsa@t}
-\def\fsa@b{\afterassignment\fsa@l \let\@let@token= }
-\def\fsa@c#1{\aftergroup#1\futurelet\@let@token\fsa@t}
-\let\fsa@n\@empty
-\let\fsa@t\@empty
-\def\rkvIfEmpty#1#2{%
-  \@xp\ifx\csname#1'#2\endcsname\@empty \@xp\@firstoftwo
-  \else\@xp\@secondoftwo
-  \fi
-}
-\def\rkv@DSAK#1#2{%
-  \ifx\relax#1\global\let#1\@empty\fi
-  \g@addto@macro#1{\let#2\@empty}%
-  \def#2%
-}
-\def\rkv@DDK#1#2{%
-  \ifx\relax#1\global\let#1\@empty\fi
-  \g@addto@macro#1{\def#2{\@empty}}%
-  \def#2%
-}
-\newcommand{\DefineSimpleKey}[2]{%
-  \@xp\rkv@DSAK\csname #1@init\@xp\endcsname
-    \csname #1'#2\endcsname{\DSK@def}%
-}
-\newcommand{\DefineSupersedingKey}[2]{%
-  \@xp\rkv@DSAK\csname #1@init\@xp\endcsname
-    \csname #1'#2\endcsname{\def}%
-}
-\def\DSK@def#1{%
-  \ifx#1\@empty\else
-    \PackageWarningNoLine{rkeyval}%
-      {Key \string#1 should not be repeated}%
-  \fi
-  \def#1%
-}
-\newcommand{\DefineAdditiveKey}[3]{%
-  \@xp\rkv@DSAK\csname #1@init\@xp\endcsname \csname #1'#2\endcsname
-    {\@append#3}%
-}
-\newcommand{\DefineDummyKey}[2]{%
-  \@xp\rkv@DDK\csname #1@init\@xp\endcsname \csname #1'#2\endcsname{\def}%
-}
-\newcommand{\RestrictedSetKeys}[3][\NoCommaWarning]{%
-  \global\rsk@toks\@xp{\csname #2@init\endcsname}%
-  \gdef\rsk@set{\@xp\rsk@set@a\csname#2'}%
-  \def\rsk@finish{#3}%
-  \def\rsk@nocomma{#1}%
-  \begingroup \aftergroup\rsk@set
-  \let\fsa@t\rsk@z \fsa@l
-}
-\def\rsk@unknown@key#1{%
-  \PackageWarning{rkeyval}{Unknown key: \string#1}%
-  \def#1{\def}%
-}
-\newtoks\rsk@toks
-\def\rsk@set@a#1#2{%
-  \ifx\relax#1\rsk@unknown@key#1\fi
-  \toks@\@xp{#1#1{#2}}%
-  \edef\@tempa{%
-    \global\rsk@toks{\the\rsk@toks \the\toks@}%
-  }%
-  \@tempa
-  \rsk@resume
-}
-\def\rsk@z{%
-  \ifx\bgroup\@let@token \let\fsa@t\rsk@b \let\fsa@n\fsa@b
-  \else\ifx\@sptoken\@let@token \let\fsa@n\fsa@b
-  \else \rsk@errf
-  \fi\fi
-  \fsa@n
-}
-\def\rsk@a{%
-  \ifx,\@let@token \endgroup \let\fsa@t\rsk@b \let\fsa@n\fsa@b
-  \else\rsk@ab\fi
-  \fsa@n
-}
-\def\rsk@ab{%
-  \ifx\@sptoken\@let@token \let\fsa@n\fsa@b
-  \else\ifx\bgroup\@let@token \endgroup
-    \let\@let@token\bgroup \let\fsa@n\rsk@erra
-  \else\ifx\egroup\@let@token \endgroup \let\fsa@n\rsk@end
-  \else\ifx\par\@let@token \endgroup \let\fsa@n\rsk@erraa
-  \else \endgroup \let\fsa@n\rsk@erraa
-  \fi\fi\fi\fi
-}
-\def\rsk@lc@letter#1{\lowercase{\fsa@c{#1}}}
-\def\rsk@b{%
-  \ifcat\@nx\@let@token A\let\fsa@t\rsk@c \let\fsa@n\rsk@lc@letter
-  \else\ifx\@sptoken\@let@token \let\fsa@n\fsa@b
-  \else\rsk@bb\fi\fi
-  \fsa@n
-}
-\def\rsk@bb{%
-  \ifx,\@let@token \let\fsa@n\fsa@b
-  \else\ifx\bgroup\@let@token \let\fsa@n\rsk@errb
-  \else\ifx\egroup\@let@token \let\fsa@n\rsk@end
-  \else \let\fsa@n\rsk@errc
-  \fi\fi\fi
-}
-\def\rsk@c{%
-  \ifcat\@nx\@let@token A\let\fsa@n\rsk@lc@letter
-  \else\ifx\@sptoken\@let@token \let\fsa@t\rsk@d \let\fsa@n\fsa@b
-  \else\ifx=\@let@token \let\fsa@t\rsk@d \let\fsa@n\fsa@b
-  \else\rsk@cb\fi\fi\fi
-  \fsa@n
-}
-\def\rsk@cb{%
-  \ifx,\@let@token \let\fsa@n\rsk@errc
-  \else\ifcat\@nx\@let@token .\let\fsa@n\fsa@c
-  \else\ifx\bgroup\@let@token \let\fsa@n\rsk@errd
-  \else\ifx\egroup\@let@token \let\fsa@n\rsk@errd
-  \else \let\fsa@n\rsk@errc
-  \fi\fi\fi\fi
-}
-\def\rsk@d{%
-  \ifx\bgroup\@let@token \aftergroup\endcsname \let\fsa@n\endgroup
-  \else\ifx\@sptoken\@let@token \let\fsa@n\fsa@b
-  \else\ifx=\@let@token \let\fsa@n\fsa@b
-  \else\let\fsa@n\rsk@erre\fi\fi\fi
-  \fsa@n
-}
-\def\rsk@resume{\begingroup \aftergroup\rsk@set
-  \let\fsa@t\rsk@a
-  \begingroup
-  \catcode\endlinechar=\active \lccode`\~=\endlinechar
-  \lowercase{\let~\par}%
-  \fsa@l}
-\def\rsk@end{%
-  \global\let\rsk@set\@gobble
-  \endgroup \endcsname
-  \afterassignment\rsk@finish
-  \toks@\bgroup
-}
-\def\NoCommaWarning{\PackageWarning{rkeyval}{Missing comma}}%
-\def\NoCommaError{\rsk@err{Missing comma}\@ehc}
-\def\rsk@nocomma{\NoCommaWarning}
-\def\rsk@err{\PackageError{rkeyval}}
-\def\rsk@errf{\rsk@err{Missing open brace}\@ehc\rsk@b}
-\def\rsk@erra{\rsk@nocomma\rsk@b}
-\long\def\rsk@erraa#1{\rsk@nocomma \let\fsa@t\rsk@b \fsa@l}
-\def\rsk@errb{\rsk@err{Missing key name}\@ehc\rsk@d}
-\def\rsk@errc{\rsk@err{Invalid key name character}\@ehc\fsa@b}
-\def\rsk@errd{\rsk@err{Missing equal sign}\@ehc\rsk@d}
-\def\rsk@erre#1,{\rsk@err{Missing open brace for key value}\@ehc
-  \endgroup \endcsname{#1},%
-}
-\endinput
-%%
-%% End of file `rkeyval.sty'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/textcmds.sty b/Master/texmf-dist/tex/latex/amslatex/textcmds.sty
deleted file mode 100644
index 4f4346c60a1..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/textcmds.sty
+++ /dev/null
@@ -1,123 +0,0 @@
-%%
-%% This is file `textcmds.sty',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% textcmds.dtx  (with options: `pkg')
-%% 
-%%% ====================================================================
-%%% @LaTeX-doc-source-file{
-%%%   filename  = "textcmds.dtx",
-%%%   version   = "1.05",
-%%%   date      = "2002/04/16",
-%%%   time      = "08:47:47 EDT",
-%%%   author    = "Michael J Downes",
-%%%   address   = "American Mathematical Society,
-%%%                Publications Technical Group,
-%%%                PO Box 6248,
-%%%                Providence, RI 02940,
-%%%                USA",
-%%%   email     = "tech-support@ams.org",
-%%%   URL       = "http://www.ams.org/",
-%%%   abstract  = "Short forms for textemdash and the other LaTeX
-%%%                commands that correspond to ligatures of
-%%%                convenience.",
-%%%   checksum  = "55773 283 1136 10227",
-%%%   docstring = "The checksum field, produced by Robert Solovay's
-%%%                checksum utility, gives CRC-16 checksum, lines,
-%%%                words, and characters.",
-%%%  }
-%%% ====================================================================
-\ProvidesPackage{textcmds}[2002/04/16 v1.05]
-\providecommand{\mdash}{\textemdash\penalty\exhyphenpenalty}
-\providecommand{\ndash}{\textendash\penalty\exhyphenpenalty}
-\newcommand{\qd}{\textquestiondown}
-\newcommand{\xd}{\textexclamdown}
-\newcommand{\ldq}{\textquotedblleft}
-\newcommand{\rdq}{\textquotedblright}
-\newcommand{\lsq}{\textquoteleft}
-\newcommand{\rsq}{\textquoteright}
-\newcommand{\bul}{\textbullet}%
-\newcommand{\vsp}{\textvisiblespace}%
-\newcommand{\pdc}{\textperiodcentered}%
-\newcommand{\vrt}{\textbar}%
-\newcommand{\cir}{\textasciicircum}%
-\newcommand{\til}{\textasciitilde}%
-\newcommand{\bsl}{\textbackslash}%
-\newcommand{\cwm}{\textcompwordmark}%
-\providecommand{\qq}[1]{\ldq#1\/\rdq}
-\newcommand{\supsize}{%
-  \expandafter\ifx\csname S@\f@size\endcsname\relax
-    \calculate@math@sizes
-  \fi
-  \csname S@\f@size\endcsname
-  \fontsize\sf@size\z@\selectfont
-}
-\DeclareRobustCommand{\tsup}[1]{%
-  \leavevmode\raise.9ex\hbox{\supsize #1}%
-}
-\DeclareRobustCommand{\tsub}[1]{%
-  \leavevmode\lower.6ex\hbox{\supsize #1}%
-}
-\DeclareTextSymbolDefault{\textprimechar}{OMS}
-\DeclareTextSymbol{\textprimechar}{OMS}{48}
-\DeclareRobustCommand{\tprime}{\tsup{\textprimechar}}
-\@ifundefined{textlangle}{%
-  \DeclareTextSymbolDefault{\textlangle}{OMS}
-  \DeclareTextSymbolDefault{\textrangle}{OMS}
-}{}
-\DeclareTextSymbol{\textlangle}{OMS}{"68}
-\DeclareTextSymbol{\textrangle}{OMS}{"69}
-\DeclareRobustCommand{\lara}[1]{\textlangle#1\/\textrangle}
-\csname endinput\endcsname
-<*emacs>
-(defvar latex-ndash-command "\\ndash"
-  "*String to insert for an n-dash in LaTeX mode.")
-
-(defvar latex-mdash-command "\\mdash"
-  "*String to insert for an m-dash in LaTeX mode.")
-
-(defvar latex-quote-command "\\qq"
-  "*String to insert for quotes in LaTeX mode.")
-
-(defun latex-maybe-start-quotes (arg)
-  "Insert the beginning of a \\qq{...} structure if the preceding char is
-a left quote."
-  (interactive "*p")
-  (if (= (preceding-char) ?\`)
-      (progn
-        (delete-backward-char 1)
-        (insert-and-inherit (concat latex-quote-command "\{")))
-    (self-insert-command arg)))
-
-(defun latex-maybe-end-quotes (arg)
-  "Insert the end of a \\qq{...} structure if appropriate."
-  (interactive "*p")
-  (if (= (preceding-char) ?\')
-      (progn
-        (delete-backward-char 1)
-        (insert-and-inherit "\}"))
-    (self-insert-command arg)))
-
-(defun latex-maybe-dash (arg)
-  "Convert two or three hyphens to \\mdash or \\ndash."
-  (interactive "*p")
-  (cond
-   ((re-search-backward
-     (concat (regexp-quote latex-ndash-command) " *\\=") nil t)
-    (replace-match (concat (regexp-quote latex-mdash-command) " ")))
-   ((= (preceding-char) ?-)
-    (delete-backward-char 1)
-    (insert-and-inherit (concat latex-ndash-command " ")))
-   (t (self-insert-command arg))))
-
-(add-hook 'TeX-mode-hook
-  '(lambda
-    (define-key LaTeX-mode-map "\`" 'latex-maybe-start-quotes)
-    (define-key LaTeX-mode-map "\'" 'latex-maybe-end-quotes)
-    (define-key LaTeX-mode-map "-" 'latex-maybe-dash)))
-</emacs>
-\endinput
-%%
-%% End of file `textcmds.sty'.
diff --git a/Master/texmf-dist/tex/latex/amslatex/upref.sty b/Master/texmf-dist/tex/latex/amslatex/upref.sty
deleted file mode 100644
index f1b173a842e..00000000000
--- a/Master/texmf-dist/tex/latex/amslatex/upref.sty
+++ /dev/null
@@ -1,82 +0,0 @@
-%%
-%% This is file `upref.sty',
-%% generated with the docstrip utility.
-%%
-%% The original source files were:
-%%
-%% upref.dtx 
-%% 
-%%% ====================================================================
-%%%  @LaTeX-file{
-%%%     filename        = "upref.dtx",
-%%%     version         = "2.01",
-%%%     date            = "2004/07/29",
-%%%     time            = "16:37:01 EDT",
-%%%     checksum        = "07926 151 617 5530",
-%%%     author          = "American Mathematical Society",
-%%%     copyright       = "Copyright 1996 American Mathematical Society,
-%%%                        all rights reserved.  Copying of this file is
-%%%                        authorized only if either:
-%%%                        (1) you make absolutely no changes to your copy,
-%%%                        including name; OR
-%%%                        (2) if you do make changes, you first rename it
-%%%                        to some other name.",
-%%%     address         = "American Mathematical Society,
-%%%                        Technical Support,
-%%%                        Electronic Products and Services,
-%%%                        P. O. Box 6248,
-%%%                        Providence, RI 02940,
-%%%                        USA",
-%%%     telephone       = "401-455-4080 or (in the USA and Canada)
-%%%                        800-321-4AMS (321-4267)",
-%%%     FAX             = "401-331-3842",
-%%%     email           = "tech-support@ams.org (Internet)",
-%%%     codetable       = "ISO/ASCII",
-%%%     keywords        = "latex, amslatex, ams-latex, cross references",
-%%%     supported       = "yes",
-%%%     abstract        = "This is a LaTeX package that provides printing
-%%%                        of \cn{ref}s in an upright font even if the
-%%%                        current context is italic or slanted.",
-%%%     docstring       = "The checksum field above contains a CRC-16
-%%%                        checksum as the first value, followed by the
-%%%                        equivalent of the standard UNIX wc (word
-%%%                        count) utility output of lines, words, and
-%%%                        characters.  This is produced by Robert
-%%%                        Solovay's checksum utility.",
-%%%  }
-%%% ====================================================================
-\NeedsTeXFormat{LaTeX2e}[1995/06/01]
-\ProvidesPackage{upref}[2004/07/29 v2.01]
-\newcommand{\@noref}[1]{%
-  \G@refundefinedtrue
-  \nfss@text{\reset@font\bfseries ??}%
-  \@latex@warning{Reference `#1' on page \thepage\space undefined}%
-}
-\AtBeginDocument{%
-  \@ifpackageloaded{hyperref}{%
-    \def\Hy@setref@link#1#2#3#4#5#6\@nil#7{%
-      \begingroup
-      \toks0{\hyper@@link{#5}{#4}}%
-      \toks1\@xp{#7{\textup{#1}\hbox{}}{#2}{#3}{#4}{#5}}%
-      \edef\x{\endgroup\the\toks0{\the\toks1}}\x
-    }%
-    \def\@setref#1#2#3{%
-      \ifx#1\relax
-        \@xp\protect\@noref{#3}%
-      \else
-        \@xp\Hy@setref@link#1\@empty\@empty\@nil{#2}%
-      \fi
-    }%
-  }{%
-    \def\@setref#1#2#3{\ifx#1\relax
-        \protect\@noref{#3}%
-      \else
-        \protect\textup{\@xp#2#1\hbox{}}%
-      \fi
-    }%
-  }%
-}
-\providecommand\@upn{\textup}
-\endinput
-%%
-%% End of file `upref.sty'.