latex-dev (15sep19)

git-svn-id: svn://tug.org/texlive/trunk@52096 c570f23f-e606-0410-a88d-b1316a301751

222 files changed, 16448 insertions, 681 deletions

diff --git a/Master/texmf-dist/tex/latex-dev/amsmath/amsbsy.sty b/Master/texmf-dist/tex/latex-dev/amsmath/amsbsy.sty
new file mode 100644
index 00000000000..04009333a6a
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/amsmath/amsbsy.sty
@@ -0,0 +1,72 @@
+%%
+%% This is file `amsbsy.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% amsbsy.dtx 
+%% 
+%% Copyright 1995, 1999 American Mathematical Society.
+%% Copyright 2016 LaTeX3 Project and American Mathematical Society.
+%% 
+%% This work may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%   https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This work has the LPPL maintenance status `maintained'.
+%% 
+%% The Current Maintainer of this work is the LaTeX3 project.
+%% 
+\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 Bold Symbols]
+\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-dev/amsmath/amscd.sty b/Master/texmf-dist/tex/latex-dev/amsmath/amscd.sty
new file mode 100644
index 00000000000..b3c42bc318f
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/amsmath/amscd.sty
@@ -0,0 +1,147 @@
+%%
+%% This is file `amscd.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% amscd.dtx 
+%% 
+%% Copyright 1995, 1999 American Mathematical Society.
+%% Copyright 2016 LaTeX3 Project and American Mathematical Society.
+%% 
+%% This work may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%   https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This work has the LPPL maintenance status `maintained'.
+%% 
+%% The Current Maintainer of this work is the LaTeX3 project.
+%% 
+\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
+[1994/12/01]% LaTeX date must December 1994 or later
+\ProvidesPackage{amscd}[2017/04/14 v2.1 AMS Commutative Diagrams]
+\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-dev/amsmath/amsgen.sty b/Master/texmf-dist/tex/latex-dev/amsmath/amsgen.sty
new file mode 100644
index 00000000000..67acd4b5fdb
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/amsmath/amsgen.sty
@@ -0,0 +1,136 @@
+%%
+%% This is file `amsgen.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% amsgen.dtx 
+%% 
+%% Copyright 1995, 1999 American Mathematical Society.
+%% Copyright 2016 LaTeX3 Project and American Mathematical Society.
+%% 
+%% This work may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%   https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This work has the LPPL maintenance status `maintained'.
+%% 
+%% The Current Maintainer of this work is the LaTeX3 project.
+%% 
+\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 generic functions]
+\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-dev/amsmath/amsmath.sty b/Master/texmf-dist/tex/latex-dev/amsmath/amsmath.sty
new file mode 100644
index 00000000000..b07d783fcb7
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/amsmath/amsmath.sty
@@ -0,0 +1,2859 @@
+%%
+%% This is file `amsmath.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% amsmath.dtx 
+%% 
+%% Copyright 1995, 1999, 2000, 2013 American Mathematical Society.
+%% Copyright 2016 LaTeX3 Project and American Mathematical Society.
+%% 
+%% This work may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%   https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This work has the LPPL maintenance status `maintained'.
+%% 
+%% The Current Maintainer of this work is the LaTeX3 project.
+%% 
+\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
+[1994/12/01]% LaTeX date must be December 1994 or later
+\providecommand\DeclareRelease[3]{}
+\providecommand\DeclareCurrentRelease[2]{}
+\DeclareRelease{}{2018-12-01}{amsmath-2018-12-01.sty}
+\DeclareCurrentRelease{}{2019-04-01}
+\ProvidesPackage{amsmath}[2019/04/01 v2.17c 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{alignedleftspaceyes}{\def\alignedspace@left{\null\,}}
+\DeclareOption{alignedleftspaceno}{\def\alignedspace@left{\null}}
+\DeclareOption{alignedleftspaceyesifneg}{%
+\def\alignedspace@left{%
+  \edef\@tempa{\expandafter\@car\the\lastskip\@nil}%
+  \if-\@tempa\null\,%
+  \else
+    \edef\@tempa{\expandafter\@car\the\lastkern\@nil}%
+    \if-\@tempa\null\,%
+    \else\null
+    \fi
+  \fi}%
+}
+\DeclareOption{?}{}
+\ExecuteOptions{%
+  nointlimits,sumlimits,namelimits,centertags,alignedleftspaceyesifneg}
+\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 https://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]
+\@ifpackageloaded{stix}{%
+    \let\ams@newcommand\providecommand
+    \let\ams@renewcommand\providecommand
+    \let\ams@def\providecommand
+    \let\ams@DeclareRobustCommand\providecommand
+}{%
+    \let\ams@newcommand\newcommand
+    \let\ams@renewcommand\renewcommand
+    \let\ams@def\def
+    \let\ams@DeclareRobustCommand\DeclareRobustCommand
+}
+\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}}
+\ifx\leavevmode@ifvmode\@undefined  % kernel is < 2018/12
+\def\@mathmeasure#1#2#3{\setbox#1\hbox{\frozen@everymath\@emptytoks
+    \m@th$#2#3$}}
+\else
+\def\@mathmeasure#1#2#3{\setbox#1\hbox{%
+  \m@th$#2#3$}}
+\fi
+\@ifundefined{inf@bad}{%
+  \newcount\inf@bad \inf@bad=1000000 \relax
+}{}
+\ifx\leavevmode@ifvmode\@undefined
+\DeclareRobustCommand{\tmspace}[3]{%
+  \ifmmode\mskip#1#2\else\kern#1#3\fi\relax}
+\else
+\DeclareRobustCommand{\tmspace}[3]{%
+  \ifmmode\mskip#1#2\else\leavevmode@ifvmode\kern#1#3\fi\relax}
+\fi
+\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}
+\ifx\directlua\@undefined
+\ifx\XeTeXcharclass\@undefined
+\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}}
+\else
+\def\genfrac@rule#1#2#3#4{%
+\hbox{$\left#1\vcenter{\hrule \@width\z@
+                       \@height
+                       \ifdim\fontdimen#2#3\tw@=\z@
+                       #4\fontdimen6#3\tw@
+                       \else
+                       \fontdimen#2#3\tw@
+                       \fi
+                      }\right.$}}
+\def\genfrac@choice#1#2{%
+\ifx @#2@\else
+\ifx c#1\kern-\nulldelimiterspace\fi
+{\delimitershortfall\z@\delimiterfactor\@m
+ \mathsurround\z@\nulldelimiterspace\z@
+\mathchoice
+{\genfrac@rule{#2}{20}\textfont{2.39}}%
+{\genfrac@rule{#2}{21}\textfont{1}}%
+{\genfrac@rule{#2}{21}\scriptfont{1.45}}%
+{\genfrac@rule{#2}{21}\scriptscriptfont{1.35}}%
+}%
+\ifx o#1\kern-\nulldelimiterspace\fi
+\fi
+}
+\DeclareRobustCommand{\genfrac}[6]{{%
+\@mathstyle{#4}%
+\genfrac@choice o{#1}%
+{\begingroup#5\endgroup\ifx @#3@\@@over\else\@@above\fi#3\relax#6}%
+\genfrac@choice c{#2}%
+}}
+\fi
+\else
+\def\genfrac@rule#1#2#3{%
+\hbox{$\left#1\vcenter{\hrule \@width\z@
+                       \@height
+                       \ifdim\Umathfractiondelsize#2=\z@
+                       #3\fontdimen6#3\tw@
+                       \else
+                       \Umathfractiondelsize#2%
+                       \fi
+                      }\right.$}}
+\def\genfrac@choice#1#2{%
+\ifx @#2@\else
+\ifx c#1\kern-\nulldelimiterspace\fi
+{\delimitershortfall\z@\delimiterfactor\@m
+ \mathsurround\z@\nulldelimiterspace\z@
+\mathchoice
+{\genfrac@rule{#2}\displaystyle{2.39}}%
+{\genfrac@rule{#2}\textstyle{1}}%
+{\genfrac@rule{#2}\scriptstyle{1.45}}%
+{\genfrac@rule{#2}\scriptscriptstyle{1.35}}%
+}%
+\ifx o#1\kern-\nulldelimiterspace\fi
+\fi
+}
+\DeclareRobustCommand{\genfrac}[6]{{%
+\@mathstyle{#4}%
+\genfrac@choice o{#1}%
+{\begingroup#5\endgroup\ifx @#3@\@@over\else\@@above\fi#3\relax#6}%
+\genfrac@choice c{#2}%
+}}
+\fi
+\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"}
+\edef\@tempd{\string\Umathchar"}
+\def\@tempb#1"#2\@nil{#1"}
+\edef\@tempc{\expandafter\@tempb\meaning\coprod "\@nil}
+\ifx\@tempc\@tempd\let\@tempc\@tempa\fi
+\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}}}
+{\uccode`(=`U \uccode`)=`m
+ \uppercase{\gdef\Umathch@#1#2#3#4"#5"#6\Umathch@{\gtest@false
+  \ifx(#2\ifx)#3\gtest@true
+  \ifcase"#5 \or\or\gdef\thedots@{\dotsb@}\or\gdef\thedots@{\dotsb@}\fi
+  \fi\fi
+  }}}
+\ifx\Umathcharnumdef\@undefined
+\gdef\thecharacter@#1\thecharacter@{}
+\else
+{\uccode`(=`t \uccode`)=`c
+ \uppercase{\gdef\thecharacter@#1#2#3#4#5\thecharacter@{%
+  \ifx(#1\ifx)#4%
+    \@xp\getmathcode@\meaning@\getmathcode@
+  \fi\fi
+}}}
+\def\getmathcode@#1 #2 #3#4\getmathcode@{%
+  \Umathcharnumdef\@tempa\Umathcodenum`#3\relax
+  \edef\meaning@{\meaning\@tempa}%
+  \@xp\Umathch@\meaning@\Umathch@
+}
+\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@}}}
+{\uccode`9=`\l %
+ \uppercase{\gdef\striplong@#1#2#3\relax{%
+  \ifx9#2 \@xp\@xp\@xp\zap@to@space\fi}}}
+\def\zap@to@space#1 {}
+\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@ % if \keybin@ test
+         \gdef\thedots@{\dotsb@}%
+       \else
+         \xdef\meaning@{\meaning\@let@token. .........}%
+         \xdef\meaning@@{\@xp\striplong@\meaning@\relax\meaning@}%
+         \@xp\math@\meaning@\math@
+         \ifgtest@ % if \mathxxx test
+           \@xp\mathch@\meaning@\mathch@
+           \ifgtest@ % if \mathchar
+             \@xp\getmathch@\meaning@\getmathch@
+           \fi % end if \mathchar
+         \else  % \not \mathxxx
+             \@xp\Umathch@\meaning@"0"\Umathch@
+             \ifgtest@ % if \Umathchar
+             \else % else not \Umathcar
+           \@xp\macro@\meaning@@\macro@
+           \ifgtest@ % if macro test
+             \@xp\not@\meaning@\not@
+             \ifgtest@ % if macro starts \not test
+               \gdef\thedots@{\dotsb@}%
+             \else% else not \not
+               \@xp\DOTS@\meaning@\DOTS@
+               \ifgtest@ % \if DOTS
+                 \ifcase\number\DOTSCASE@ %ifcase dots
+                   \gdef\thedots@{\dotsb@}%
+                 \or\gdef\thedots@{\dotsi}\else
+                 \fi % endifcase dots
+               \else % not macro starts \DOTS
+                 \@xp\math@\meaning@\math@
+                 \ifgtest@ % \if macro starts \mathxxxx
+                   \@xp\mathbin@\meaning@\mathbin@
+                   \ifgtest@ % if macro starts \mathbin
+                     \gdef\thedots@{\dotsb@}%
+                   \else % not macro starting \mathbin
+                     \@xp\mathrel@\meaning@\mathrel@
+                     \ifgtest@ % if macro starts \mathrel
+                       \gdef\thedots@{\dotsb@}%
+                     \fi % endif macro starts \mathrel (no else)
+                   \fi % endif macro starts \mathbin
+                 \fi % endif macro starts with \mathxxx (no else)
+               \fi % endif macro starts \DOTS else
+             \fi % end macro  starting \not \ifgtest@ test (no else)
+             \else
+               \@xp\thecharacter@\meaning@\thecharacter@
+             \fi % end macro \ifgtest@ test (no else)
+           \fi % end if \Umathchar test
+         \fi % end \math@   \ifgtest@
+       \fi % end \keybin@ \ifgtest@ test (no else)
+     \fi % end if \not (no else)
+   \fi % end if comma (no else)
+ \fi % end if boldsymbol (no else)
+ \thedots@}
+\def\boldsymboldots@#1{%
+  \bold@true\let\@let@token=#1\let\delayed@=#1\mdots@@
+  \boldsymbol#1\bold@false}
+\ams@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@}
+\ams@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}}}
+\ams@newcommand{\iint}{\DOTSI\protect\MultiIntegral{2}}
+\ams@newcommand{\iiint}{\DOTSI\protect\MultiIntegral{3}}
+\ams@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@}
+\ifx\Umathcharnumdef\@undefined
+\def\resetMathstrut@{%
+  \begingroup
+  \setbox\z@\hbox{%
+    \mathchardef\@tempa\mathcode`\(\relax
+    \def\@tempb##1"##2##3{\the\textfont"##3\char"}%
+    \expandafter\@tempb\meaning\@tempa \relax
+  }%
+ \edef\@tempa{%
+     \ht\Mathstrutbox@\the\ht\z@\relax
+     \dp\Mathstrutbox@\the\dp\z@\relax}%
+  \expandafter\endgroup\@tempa
+}
+\else
+\def\resetMathstrut@{%
+    \begingroup
+    \Umathcharnumdef\@tempa\Umathcodenum`\(\relax
+    \def\@tempb##1"##2"##3"##4\relax{%
+      \endgroup
+      \ht\Mathstrutbox@=\fontcharht\textfont"##3 "##4\relax
+      \dp\Mathstrutbox@=\fontchardp\textfont"##3 "##4\relax}%
+    \expandafter\@tempb\meaning\@tempa \relax
+}
+\fi
+\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}}
+\ifx\leavevmode@ifvmode\@undefined
+\def\bBigg@#1#2{%
+  {\@mathmeasure\z@{\nulldelimiterspace\z@}%
+     {\left#2\vcenter to#1\big@size{}\right.}%
+   \box\z@}}
+\else
+\def\bBigg@#1#2{\leavevmode@ifvmode
+  {\@mathmeasure\z@{\nulldelimiterspace\z@}%
+     {\left#2\vcenter to#1\big@size{}\right.}%
+   \box\z@}}
+\fi
+\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@}
+\ams@newcommand{\dddot}[1]{%
+  {\mathop{#1}\limits^{\vbox to-1.4\ex@{\kern-\tw@\ex@
+   \hbox{\normalfont ...}\vss}}}}
+\ams@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{%
+  \@ifundefined{\@xp\@gobble\string#1\space}%
+     {\@xp\@tempb\meaning#1\@nil#1}%
+     {\@xp\@xp\@xp\@tempb\@xp\meaning
+       \csname\@xp\@gobble\string#1\space\endcsname\@nil#1}%
+}
+\def\@tempb#1>#2#3 #4\@nil#5{%
+  \@xp\ifx\csname#3\endcsname\mathaccent
+    \@tempc#4?"7777\@nil#5%
+  \else
+  \@xp\ifx\csname#3\endcsname\Umathaccent
+    \@tempd#4\@nil#5%
+  \else
+    \PackageWarningNoLine{amsmath}{%
+      Unable to redefine math accent \string#5}%
+  \fi\fi}
+\def\@tempc#1"#2#3#4#5#6\@nil#7{%
+  \chardef\@tempd="#3\relax\set@mathaccent\@tempd{#7}{#2}{#4#5}}
+\def\@tempd#1\@nil#2{%
+    \PackageWarningNoLine{amsmath}{%
+      Unable to redefine \string\Umathaccent\space\string#2}%
+}
+\@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{\overunderset}[3]{\binrel@{#3}%
+  \binrel@@{\mathop{\kern\z@#3}\limits^{#1}_{#2}}}
+\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}%
+}
+\ifx\leavevmode@ifvmode\@undefined
+\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
+}
+\else
+\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@ \leavevmode@ifvmode\box\z@}%
+  \ifmmode \@xp\mathpalette\@xp\mathsm@sh
+  \else \@xp\makesm@sh
+  \fi
+}
+\fi
+\mathchardef\std@minus\mathcode`\-\relax
+\mathchardef\std@equal\mathcode`\=\relax
+\AtBeginDocument{%
+  \mathchardef\std@minus\mathcode`\-\relax
+  \mathchardef\std@equal\mathcode`\=\relax
+}
+\ams@def\relbar{\mathrel{\mathpalette\mathsm@sh\std@minus}}
+\ams@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}}}
+\ams@renewcommand{\overrightarrow}{%
+  \mathpalette{\overarrow@\rightarrowfill@}}
+\ams@renewcommand{\overleftarrow}{%
+  \mathpalette{\overarrow@\leftarrowfill@}}
+\ams@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}}}
+\ams@newcommand{\underrightarrow}{%
+  \mathpalette{\underarrow@\rightarrowfill@}}
+\ams@newcommand{\underleftarrow}{%
+  \mathpalette{\underarrow@\leftarrowfill@}}
+\ams@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\ignorespaces##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\displaywidth{\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
+    \alignedspace@left
+    \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
+    \alignedspace@left
+    \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-dev/amsmath/amsopn.sty b/Master/texmf-dist/tex/latex-dev/amsmath/amsopn.sty
new file mode 100644
index 00000000000..eb5e1e7a5fb
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/amsmath/amsopn.sty
@@ -0,0 +1,117 @@
+%%
+%% This is file `amsopn.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% amsopn.dtx 
+%% 
+%% Copyright 1995, 1999 American Mathematical Society.
+%% Copyright 2016 LaTeX3 Project and American Mathematical Society.
+%% 
+%% This work may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%   https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This work has the LPPL maintenance status `maintained'.
+%% 
+%% The Current Maintainer of this work is the LaTeX3 project.
+%% 
+\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX)
+[1994/12/01]% LaTeX date must December 1994 or later
+\ProvidesPackage{amsopn}[2016/03/08 v2.02 operator names]
+\def\nolimits@{\@ifnextchar\limits{\nolimits\@gobble}{\nolimits}}
+\begingroup \catcode`\"=12
+\ifx\Umathcode\@undefined
+\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}
+\else
+\gdef\newmcodes@{\mathcode`\'39\mathcode`\*42\mathcode`\."613A%
+  \ifnum\Umathcodenum`\-=45 \else
+    \Umathcharnumdef\std@minus\Umathcodenum`\-\relax
+  \fi
+  \mathcode`\-45\mathcode`\/47\mathcode`\:"603A\relax}
+\fi
+\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-dev/amsmath/amstex.sty b/Master/texmf-dist/tex/latex-dev/amsmath/amstex.sty
new file mode 100644
index 00000000000..edb57c1214a
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/amsmath/amstex.sty
@@ -0,0 +1,2025 @@
+%
+% \iffalse meta-comment
+%
+% Copyright 1995, 1999 American Mathematical Society.
+% Copyright 2016 LaTeX3 Project and American Mathematical Society.
+%
+% This work may be distributed and/or modified under the
+% conditions of the LaTeX Project Public License, either version 1.3c
+% of this license or (at your option) any later version.
+% The latest version of this license is in
+%   https://www.latex-project.org/lppl.txt
+% and version 1.3c or later is part of all distributions of LaTeX
+% version 2005/12/01 or later.
+% 
+% This work has the LPPL maintenance status `maintained'.
+% 
+% The Current Maintainer of this work is the LaTeX3 Project.
+%
+% \fi
+%
+%    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-dev/amsmath/amstext.sty b/Master/texmf-dist/tex/latex-dev/amsmath/amstext.sty
new file mode 100644
index 00000000000..b94cfb5f4e9
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/amsmath/amstext.sty
@@ -0,0 +1,76 @@
+%%
+%% This is file `amstext.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% amstext.dtx 
+%% 
+%% Copyright 1995, 1999 American Mathematical Society.
+%% Copyright 2016 LaTeX3 Project and American Mathematical Society.
+%% 
+%% This work may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%   https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This work has the LPPL maintenance status `maintained'.
+%% 
+%% The Current Maintainer of this work is the LaTeX3 project.
+%% 
+\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 AMS text]
+\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-dev/amsmath/amsxtra.sty b/Master/texmf-dist/tex/latex-dev/amsmath/amsxtra.sty
new file mode 100644
index 00000000000..67d2e099be4
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/amsmath/amsxtra.sty
@@ -0,0 +1,57 @@
+%%
+%% This is file `amsxtra.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% amsxtra.dtx 
+%% 
+%% Copyright 1995, 1999 American Mathematical Society.
+%% Copyright 2016 LaTeX3 Project and American Mathematical Society.
+%% 
+%% This work may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%   https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This work has the LPPL maintenance status `maintained'.
+%% 
+%% The Current Maintainer of this work is the LaTeX3 project.
+%% 
+\ProvidesPackage{amsxtra}[1999/11/15 v1.2c AMS extra commands]
+\@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-dev/base/alltt.sty b/Master/texmf-dist/tex/latex-dev/base/alltt.sty
index a81033b7ffa..b8bdbfaa8a7 100644
--- a/Master/texmf-dist/tex/latex-dev/base/alltt.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/alltt.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/ansinew.def b/Master/texmf-dist/tex/latex-dev/base/ansinew.def
index f3432d9cde5..484de43f2fa 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ansinew.def
+++ b/Master/texmf-dist/tex/latex-dev/base/ansinew.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/applemac.def b/Master/texmf-dist/tex/latex-dev/base/applemac.def
index e61082b5520..af60ed7bed6 100644
--- a/Master/texmf-dist/tex/latex-dev/base/applemac.def
+++ b/Master/texmf-dist/tex/latex-dev/base/applemac.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/article.cls b/Master/texmf-dist/tex/latex-dev/base/article.cls
index a04b69387bb..58c3dcf18c1 100644
--- a/Master/texmf-dist/tex/latex-dev/base/article.cls
+++ b/Master/texmf-dist/tex/latex-dev/base/article.cls
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
@@ -43,7 +43,7 @@
 %% extension .ins) which are part of the distribution.
 \NeedsTeXFormat{LaTeX2e}[1995/12/01]
 \ProvidesClass{article}
-              [2018/09/03 v1.4i
+              [2019/08/27 v1.4j
  Standard LaTeX document class]
 \newcommand\@ptsize{}
 \newif\if@restonecol
diff --git a/Master/texmf-dist/tex/latex-dev/base/article.sty b/Master/texmf-dist/tex/latex-dev/base/article.sty
index 0915c7162c2..236aa3c42b0 100644
--- a/Master/texmf-dist/tex/latex-dev/base/article.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/article.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/ascii.def b/Master/texmf-dist/tex/latex-dev/base/ascii.def
index d5b6494f1a3..a8c172bb41b 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ascii.def
+++ b/Master/texmf-dist/tex/latex-dev/base/ascii.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/bezier.sty b/Master/texmf-dist/tex/latex-dev/base/bezier.sty
index e7421c368a1..1c88ff25661 100644
--- a/Master/texmf-dist/tex/latex-dev/base/bezier.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/bezier.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/bk10.clo b/Master/texmf-dist/tex/latex-dev/base/bk10.clo
index 8dc38025722..d697237cf7d 100644
--- a/Master/texmf-dist/tex/latex-dev/base/bk10.clo
+++ b/Master/texmf-dist/tex/latex-dev/base/bk10.clo
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
@@ -42,7 +42,7 @@
 %% and covered by LPPL is defined by the unpacking scripts (with
 %% extension .ins) which are part of the distribution.
 \ProvidesFile{bk10.clo}
-              [2018/09/03 v1.4i
+              [2019/08/27 v1.4j
       Standard LaTeX file (size option)]
 \renewcommand\normalsize{%
    \@setfontsize\normalsize\@xpt\@xiipt
@@ -52,7 +52,8 @@
    \belowdisplayskip \abovedisplayskip
    \let\@listi\@listI}
 \normalsize
-\newcommand\small{%
+\MakeRobust\normalsize
+\DeclareRobustCommand\small{%
    \@setfontsize\small\@ixpt{11}%
    \abovedisplayskip 8.5\p@ \@plus3\p@ \@minus4\p@
    \abovedisplayshortskip \z@ \@plus2\p@
@@ -63,7 +64,7 @@
                \itemsep \parsep}%
    \belowdisplayskip \abovedisplayskip
 }
-\newcommand\footnotesize{%
+\DeclareRobustCommand\footnotesize{%
    \@setfontsize\footnotesize\@viiipt{9.5}%
    \abovedisplayskip 6\p@ \@plus2\p@ \@minus4\p@
    \abovedisplayshortskip \z@ \@plus\p@
@@ -74,13 +75,13 @@
                \itemsep \parsep}%
    \belowdisplayskip \abovedisplayskip
 }
-\newcommand\scriptsize{\@setfontsize\scriptsize\@viipt\@viiipt}
-\newcommand\tiny{\@setfontsize\tiny\@vpt\@vipt}
-\newcommand\large{\@setfontsize\large\@xiipt{14}}
-\newcommand\Large{\@setfontsize\Large\@xivpt{18}}
-\newcommand\LARGE{\@setfontsize\LARGE\@xviipt{22}}
-\newcommand\huge{\@setfontsize\huge\@xxpt{25}}
-\newcommand\Huge{\@setfontsize\Huge\@xxvpt{30}}
+\DeclareRobustCommand\scriptsize{\@setfontsize\scriptsize\@viipt\@viiipt}
+\DeclareRobustCommand\tiny{\@setfontsize\tiny\@vpt\@vipt}
+\DeclareRobustCommand\large{\@setfontsize\large\@xiipt{14}}
+\DeclareRobustCommand\Large{\@setfontsize\Large\@xivpt{18}}
+\DeclareRobustCommand\LARGE{\@setfontsize\LARGE\@xviipt{22}}
+\DeclareRobustCommand\huge{\@setfontsize\huge\@xxpt{25}}
+\DeclareRobustCommand\Huge{\@setfontsize\Huge\@xxvpt{30}}
 \if@twocolumn
   \setlength\parindent{1em}
 \else
diff --git a/Master/texmf-dist/tex/latex-dev/base/bk11.clo b/Master/texmf-dist/tex/latex-dev/base/bk11.clo
index 778e3fdd754..ac0925f943c 100644
--- a/Master/texmf-dist/tex/latex-dev/base/bk11.clo
+++ b/Master/texmf-dist/tex/latex-dev/base/bk11.clo
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
@@ -42,7 +42,7 @@
 %% and covered by LPPL is defined by the unpacking scripts (with
 %% extension .ins) which are part of the distribution.
 \ProvidesFile{bk11.clo}
-              [2018/09/03 v1.4i
+              [2019/08/27 v1.4j
       Standard LaTeX file (size option)]
 \renewcommand\normalsize{%
    \@setfontsize\normalsize\@xipt{13.6}%
@@ -52,7 +52,8 @@
    \belowdisplayskip \abovedisplayskip
    \let\@listi\@listI}
 \normalsize
-\newcommand\small{%
+\MakeRobust\normalsize
+\DeclareRobustCommand\small{%
    \@setfontsize\small\@xpt\@xiipt
    \abovedisplayskip 10\p@ \@plus2\p@ \@minus5\p@
    \abovedisplayshortskip \z@ \@plus3\p@
@@ -63,7 +64,7 @@
                \itemsep \parsep}%
    \belowdisplayskip \abovedisplayskip
 }
-\newcommand\footnotesize{%
+\DeclareRobustCommand\footnotesize{%
    \@setfontsize\footnotesize\@ixpt{11}%
    \abovedisplayskip 8\p@ \@plus2\p@ \@minus4\p@
    \abovedisplayshortskip \z@ \@plus\p@
@@ -74,13 +75,13 @@
                \itemsep \parsep}%
    \belowdisplayskip \abovedisplayskip
 }
-\newcommand\scriptsize{\@setfontsize\scriptsize\@viiipt{9.5}}
-\newcommand\tiny{\@setfontsize\tiny\@vipt\@viipt}
-\newcommand\large{\@setfontsize\large\@xiipt{14}}
-\newcommand\Large{\@setfontsize\Large\@xivpt{18}}
-\newcommand\LARGE{\@setfontsize\LARGE\@xviipt{22}}
-\newcommand\huge{\@setfontsize\huge\@xxpt{25}}
-\newcommand\Huge{\@setfontsize\Huge\@xxvpt{30}}
+\DeclareRobustCommand\scriptsize{\@setfontsize\scriptsize\@viiipt{9.5}}
+\DeclareRobustCommand\tiny{\@setfontsize\tiny\@vipt\@viipt}
+\DeclareRobustCommand\large{\@setfontsize\large\@xiipt{14}}
+\DeclareRobustCommand\Large{\@setfontsize\Large\@xivpt{18}}
+\DeclareRobustCommand\LARGE{\@setfontsize\LARGE\@xviipt{22}}
+\DeclareRobustCommand\huge{\@setfontsize\huge\@xxpt{25}}
+\DeclareRobustCommand\Huge{\@setfontsize\Huge\@xxvpt{30}}
 \if@twocolumn
   \setlength\parindent{1em}
 \else
diff --git a/Master/texmf-dist/tex/latex-dev/base/bk12.clo b/Master/texmf-dist/tex/latex-dev/base/bk12.clo
index f2e6010b7f9..0cf523d6d7f 100644
--- a/Master/texmf-dist/tex/latex-dev/base/bk12.clo
+++ b/Master/texmf-dist/tex/latex-dev/base/bk12.clo
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
@@ -42,7 +42,7 @@
 %% and covered by LPPL is defined by the unpacking scripts (with
 %% extension .ins) which are part of the distribution.
 \ProvidesFile{bk12.clo}
-              [2018/09/03 v1.4i
+              [2019/08/27 v1.4j
       Standard LaTeX file (size option)]
 \renewcommand\normalsize{%
    \@setfontsize\normalsize\@xiipt{14.5}%
@@ -52,7 +52,8 @@
    \belowdisplayskip \abovedisplayskip
    \let\@listi\@listI}
 \normalsize
-\newcommand\small{%
+\MakeRobust\normalsize
+\DeclareRobustCommand\small{%
    \@setfontsize\small\@xipt{13.6}%
    \abovedisplayskip 11\p@ \@plus3\p@ \@minus6\p@
    \abovedisplayshortskip \z@ \@plus3\p@
@@ -63,7 +64,7 @@
                \itemsep \parsep}%
    \belowdisplayskip \abovedisplayskip
 }
-\newcommand\footnotesize{%
+\DeclareRobustCommand\footnotesize{%
    \@setfontsize\footnotesize\@xpt\@xiipt
    \abovedisplayskip 10\p@ \@plus2\p@ \@minus5\p@
    \abovedisplayshortskip \z@ \@plus3\p@
@@ -74,12 +75,12 @@
                \itemsep \parsep}%
    \belowdisplayskip \abovedisplayskip
 }
-\newcommand\scriptsize{\@setfontsize\scriptsize\@viiipt{9.5}}
-\newcommand\tiny{\@setfontsize\tiny\@vipt\@viipt}
-\newcommand\large{\@setfontsize\large\@xivpt{18}}
-\newcommand\Large{\@setfontsize\Large\@xviipt{22}}
-\newcommand\LARGE{\@setfontsize\LARGE\@xxpt{25}}
-\newcommand\huge{\@setfontsize\huge\@xxvpt{30}}
+\DeclareRobustCommand\scriptsize{\@setfontsize\scriptsize\@viiipt{9.5}}
+\DeclareRobustCommand\tiny{\@setfontsize\tiny\@vipt\@viipt}
+\DeclareRobustCommand\large{\@setfontsize\large\@xivpt{18}}
+\DeclareRobustCommand\Large{\@setfontsize\Large\@xviipt{22}}
+\DeclareRobustCommand\LARGE{\@setfontsize\LARGE\@xxpt{25}}
+\DeclareRobustCommand\huge{\@setfontsize\huge\@xxvpt{30}}
 \let\Huge=\huge
 \if@twocolumn
   \setlength\parindent{1em}
diff --git a/Master/texmf-dist/tex/latex-dev/base/book.cls b/Master/texmf-dist/tex/latex-dev/base/book.cls
index 80b53e1c918..9752aaa13d6 100644
--- a/Master/texmf-dist/tex/latex-dev/base/book.cls
+++ b/Master/texmf-dist/tex/latex-dev/base/book.cls
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
@@ -43,7 +43,7 @@
 %% extension .ins) which are part of the distribution.
 \NeedsTeXFormat{LaTeX2e}[1995/12/01]
 \ProvidesClass{book}
-              [2018/09/03 v1.4i
+              [2019/08/27 v1.4j
  Standard LaTeX document class]
 \newcommand\@ptsize{}
 \newif\if@restonecol
diff --git a/Master/texmf-dist/tex/latex-dev/base/book.sty b/Master/texmf-dist/tex/latex-dev/base/book.sty
index 6eaa6d3fde2..0175949c770 100644
--- a/Master/texmf-dist/tex/latex-dev/base/book.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/book.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/cp1250.def b/Master/texmf-dist/tex/latex-dev/base/cp1250.def
index 8279f3a5d32..e5337051daf 100644
--- a/Master/texmf-dist/tex/latex-dev/base/cp1250.def
+++ b/Master/texmf-dist/tex/latex-dev/base/cp1250.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/cp1252.def b/Master/texmf-dist/tex/latex-dev/base/cp1252.def
index d6c0dbf7cce..354603eb29a 100644
--- a/Master/texmf-dist/tex/latex-dev/base/cp1252.def
+++ b/Master/texmf-dist/tex/latex-dev/base/cp1252.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/cp1257.def b/Master/texmf-dist/tex/latex-dev/base/cp1257.def
index 9385f83f9fc..cb24705f37c 100644
--- a/Master/texmf-dist/tex/latex-dev/base/cp1257.def
+++ b/Master/texmf-dist/tex/latex-dev/base/cp1257.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/cp437.def b/Master/texmf-dist/tex/latex-dev/base/cp437.def
index e255a4d8b9b..66355de257d 100644
--- a/Master/texmf-dist/tex/latex-dev/base/cp437.def
+++ b/Master/texmf-dist/tex/latex-dev/base/cp437.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/cp437de.def b/Master/texmf-dist/tex/latex-dev/base/cp437de.def
index fd424b41ef5..e9bec16d5f1 100644
--- a/Master/texmf-dist/tex/latex-dev/base/cp437de.def
+++ b/Master/texmf-dist/tex/latex-dev/base/cp437de.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/cp850.def b/Master/texmf-dist/tex/latex-dev/base/cp850.def
index 0c28d8acef5..14758199eed 100644
--- a/Master/texmf-dist/tex/latex-dev/base/cp850.def
+++ b/Master/texmf-dist/tex/latex-dev/base/cp850.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/cp852.def b/Master/texmf-dist/tex/latex-dev/base/cp852.def
index d814e2d1653..62a0f88a9c0 100644
--- a/Master/texmf-dist/tex/latex-dev/base/cp852.def
+++ b/Master/texmf-dist/tex/latex-dev/base/cp852.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/cp858.def b/Master/texmf-dist/tex/latex-dev/base/cp858.def
index 302bd44dd22..1003455ecfc 100644
--- a/Master/texmf-dist/tex/latex-dev/base/cp858.def
+++ b/Master/texmf-dist/tex/latex-dev/base/cp858.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/cp865.def b/Master/texmf-dist/tex/latex-dev/base/cp865.def
index 3bbcfc262cd..a3c467400b3 100644
--- a/Master/texmf-dist/tex/latex-dev/base/cp865.def
+++ b/Master/texmf-dist/tex/latex-dev/base/cp865.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/decmulti.def b/Master/texmf-dist/tex/latex-dev/base/decmulti.def
index fa878bc7353..13870475dbd 100644
--- a/Master/texmf-dist/tex/latex-dev/base/decmulti.def
+++ b/Master/texmf-dist/tex/latex-dev/base/decmulti.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/doc.sty b/Master/texmf-dist/tex/latex-dev/base/doc.sty
index 5c76a4eecbb..54cd4f68de5 100644
--- a/Master/texmf-dist/tex/latex-dev/base/doc.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/doc.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/docstrip.tex b/Master/texmf-dist/tex/latex-dev/base/docstrip.tex
index 58eb8a1488c..e95411e1c9c 100644
--- a/Master/texmf-dist/tex/latex-dev/base/docstrip.tex
+++ b/Master/texmf-dist/tex/latex-dev/base/docstrip.tex
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/exscale.sty b/Master/texmf-dist/tex/latex-dev/base/exscale.sty
index 8e114ba7a9d..031a4550673 100644
--- a/Master/texmf-dist/tex/latex-dev/base/exscale.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/exscale.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/fix-cm.sty b/Master/texmf-dist/tex/latex-dev/base/fix-cm.sty
index d2d9b2aa0fe..568a2136840 100644
--- a/Master/texmf-dist/tex/latex-dev/base/fix-cm.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/fix-cm.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/fixltx2e.sty b/Master/texmf-dist/tex/latex-dev/base/fixltx2e.sty
index 3454e2b4433..aee6b3e1ad4 100644
--- a/Master/texmf-dist/tex/latex-dev/base/fixltx2e.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/fixltx2e.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2018
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/flafter.sty b/Master/texmf-dist/tex/latex-dev/base/flafter.sty
index fde2f97d2e7..82976496950 100644
--- a/Master/texmf-dist/tex/latex-dev/base/flafter.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/flafter.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2018
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/fleqn.clo b/Master/texmf-dist/tex/latex-dev/base/fleqn.clo
index 6f7fd55d38e..d37cdd54156 100644
--- a/Master/texmf-dist/tex/latex-dev/base/fleqn.clo
+++ b/Master/texmf-dist/tex/latex-dev/base/fleqn.clo
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2018
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/fleqn.sty b/Master/texmf-dist/tex/latex-dev/base/fleqn.sty
index ded98b555c5..4f29b8a22bd 100644
--- a/Master/texmf-dist/tex/latex-dev/base/fleqn.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/fleqn.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/fltrace.sty b/Master/texmf-dist/tex/latex-dev/base/fltrace.sty
index 8e7d53227a9..f8f11a5f417 100644
--- a/Master/texmf-dist/tex/latex-dev/base/fltrace.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/fltrace.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2018
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/fontenc.sty b/Master/texmf-dist/tex/latex-dev/base/fontenc.sty
index 839a3f70a2b..70cf39b617c 100644
--- a/Master/texmf-dist/tex/latex-dev/base/fontenc.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/fontenc.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/fontmath.cfg b/Master/texmf-dist/tex/latex-dev/base/fontmath.cfg
index 229ae63e772..f62d9c6a804 100644
--- a/Master/texmf-dist/tex/latex-dev/base/fontmath.cfg
+++ b/Master/texmf-dist/tex/latex-dev/base/fontmath.cfg
@@ -8,7 +8,7 @@
 %% 
 %% This is a generated file.
 %% 
-%% Copyright 1993-2018
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -21,7 +21,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
@@ -37,7 +37,7 @@
 %% 
 %%% From File: fontdef.dtx
 \ProvidesFile{fontmath.cfg}
-           [2018/09/24 v3.0b LaTeX Kernel
+           [2019/08/27 v3.0c LaTeX Kernel
 (Uncustomised math
            font setup)]
 %%
diff --git a/Master/texmf-dist/tex/latex-dev/base/fontmath.ltx b/Master/texmf-dist/tex/latex-dev/base/fontmath.ltx
index 4b595a58f04..ab56863c5db 100644
--- a/Master/texmf-dist/tex/latex-dev/base/fontmath.ltx
+++ b/Master/texmf-dist/tex/latex-dev/base/fontmath.ltx
@@ -8,7 +8,7 @@
 %% 
 %% This is a generated file.
 %% 
-%% Copyright 1993-2018
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -21,7 +21,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
@@ -37,7 +37,7 @@
 %% 
 %%% From File: fontdef.dtx
 \ProvidesFile{fontmath.ltx}
-           [2018/09/24 v3.0b LaTeX Kernel
+           [2019/08/27 v3.0c LaTeX Kernel
 (Math
            font setup)]
 \typeout{=== Don't modify this file, use a .cfg file instead ===^^J}
@@ -213,7 +213,6 @@
 \DeclareMathSymbol{\Psi}{\mathalpha}{operators}{"09}
 \DeclareMathSymbol{\Omega}{\mathalpha}{operators}{"0A}
 \DeclareMathSymbol{\aleph}{\mathord}{symbols}{"40}
-\def\hbar{{\mathchar'26\mkern-9muh}}
 \DeclareMathSymbol{\imath}{\mathord}{letters}{"7B}
 \DeclareMathSymbol{\jmath}{\mathord}{letters}{"7C}
 \DeclareMathSymbol{\ell}{\mathord}{letters}{"60}
@@ -225,13 +224,8 @@
 \DeclareMathSymbol{\prime}{\mathord}{symbols}{"30}
 \DeclareMathSymbol{\emptyset}{\mathord}{symbols}{"3B}
 \DeclareMathSymbol{\nabla}{\mathord}{symbols}{"72}
-\def\surd{{\mathchar"1270}}
 \DeclareMathSymbol{\top}{\mathord}{symbols}{"3E}
 \DeclareMathSymbol{\bot}{\mathord}{symbols}{"3F}
-\def\angle{{\vbox{\ialign{$\m@th\scriptstyle##$\crcr
-      \not\mathrel{\mkern14mu}\crcr
-      \noalign{\nointerlineskip}
-      \mkern2.5mu\leaders\hrule \@height.34pt\hfill\mkern2.5mu\crcr}}}}
 \DeclareMathSymbol{\triangle}{\mathord}{symbols}{"34}
 \DeclareMathSymbol{\forall}{\mathord}{symbols}{"38}
 \DeclareMathSymbol{\exists}{\mathord}{symbols}{"39}
@@ -244,6 +238,12 @@
 \DeclareMathSymbol{\diamondsuit}{\mathord}{symbols}{"7D}
 \DeclareMathSymbol{\heartsuit}{\mathord}{symbols}{"7E}
 \DeclareMathSymbol{\spadesuit}{\mathord}{symbols}{"7F}
+\DeclareRobustCommand\hbar{{\mathchar'26\mkern-9muh}}
+\DeclareRobustCommand\surd{{\mathchar"1270}}
+\DeclareRobustCommand\angle{{\vbox{\ialign{$\m@th\scriptstyle##$\crcr
+      \not\mathrel{\mkern14mu}\crcr
+      \noalign{\nointerlineskip}
+      \mkern2.5mu\leaders\hrule \@height.34pt\hfill\mkern2.5mu\crcr}}}}
 \DeclareMathSymbol{\coprod}{\mathop}{largesymbols}{"60}
 \DeclareMathSymbol{\bigvee}{\mathop}{largesymbols}{"57}
 \DeclareMathSymbol{\bigwedge}{\mathop}{largesymbols}{"56}
@@ -251,14 +251,14 @@
 \DeclareMathSymbol{\bigcap}{\mathop}{largesymbols}{"54}
 \DeclareMathSymbol{\bigcup}{\mathop}{largesymbols}{"53}
 \DeclareMathSymbol{\intop}{\mathop}{largesymbols}{"52}
-    \def\int{\intop\nolimits}
+    \DeclareRobustCommand\int{\intop\nolimits}
 \DeclareMathSymbol{\prod}{\mathop}{largesymbols}{"51}
 \DeclareMathSymbol{\sum}{\mathop}{largesymbols}{"50}
 \DeclareMathSymbol{\bigotimes}{\mathop}{largesymbols}{"4E}
 \DeclareMathSymbol{\bigoplus}{\mathop}{largesymbols}{"4C}
 \DeclareMathSymbol{\bigodot}{\mathop}{largesymbols}{"4A}
 \DeclareMathSymbol{\ointop}{\mathop}{largesymbols}{"48}
-    \def\oint{\ointop\nolimits}
+    \DeclareRobustCommand\oint{\ointop\nolimits}
 \DeclareMathSymbol{\bigsqcup}{\mathop}{largesymbols}{"46}
 \DeclareMathSymbol{\smallint}{\mathop}{symbols}{"73}
 \DeclareMathSymbol{\triangleleft}{\mathbin}{letters}{"2F}
@@ -311,7 +311,7 @@
 \DeclareMathSymbol{\Leftrightarrow}{\mathrel}{symbols}{"2C}
 \DeclareMathSymbol{\Leftarrow}{\mathrel}{symbols}{"28}
 \DeclareMathSymbol{\Rightarrow}{\mathrel}{symbols}{"29}
-\def\neq{\not=} \let\ne=\neq
+\DeclareRobustCommand\neq{\not=} \let\ne=\neq
 \DeclareMathSymbol{\leq}{\mathrel}{symbols}{"14}
    \let\le=\leq
 \DeclareMathSymbol{\geq}{\mathrel}{symbols}{"15}
@@ -337,7 +337,7 @@
 \DeclareMathSymbol{\rightarrow}{\mathrel}{symbols}{"21}
    \let\to=\rightarrow
 \DeclareMathSymbol{\mapstochar}{\mathrel}{symbols}{"37}
-   \def\mapsto{\mapstochar\rightarrow}
+   \DeclareRobustCommand\mapsto{\mapstochar\rightarrow}
 \DeclareMathSymbol{\sim}{\mathrel}{symbols}{"18}
 \DeclareMathSymbol{\simeq}{\mathrel}{symbols}{"27}
 \DeclareMathSymbol{\perp}{\mathrel}{symbols}{"3F}
@@ -371,9 +371,9 @@
 \DeclareRobustCommand
   \Relbar{\mathrel{=}}
 \DeclareMathSymbol{\lhook}{\mathrel}{letters}{"2C}
-   \def\hookrightarrow{\lhook\joinrel\rightarrow}
+   \DeclareRobustCommand\hookrightarrow{\lhook\joinrel\rightarrow}
 \DeclareMathSymbol{\rhook}{\mathrel}{letters}{"2D}
-   \def\hookleftarrow{\leftarrow\joinrel\rhook}
+   \DeclareRobustCommand\hookleftarrow{\leftarrow\joinrel\rhook}
 \DeclareRobustCommand
   \bowtie{\mathrel\triangleright\joinrel\mathrel\triangleleft}
 \DeclareRobustCommand
@@ -420,35 +420,37 @@
 \DeclareMathAccent{\widehat}{\mathord}{largesymbols}{"62}
 \DeclareMathAccent{\mathring}{\mathalpha}{operators}{"17}
 \DeclareMathRadical{\sqrtsign}{symbols}{"70}{largesymbols}{"70}
-\def\overrightarrow#1{\vbox{\m@th\ialign{##\crcr
+\DeclareRobustCommand\overrightarrow[1]{\vbox{\m@th\ialign{##\crcr
       \rightarrowfill\crcr\noalign{\kern-\p@\nointerlineskip}
       $\hfil\displaystyle{#1}\hfil$\crcr}}}
-\def\overleftarrow#1{\vbox{\m@th\ialign{##\crcr
+\DeclareRobustCommand\overleftarrow[1]{\vbox{\m@th\ialign{##\crcr
       \leftarrowfill\crcr\noalign{\kern-\p@\nointerlineskip}%
       $\hfil\displaystyle{#1}\hfil$\crcr}}}
-\def\overbrace#1{\mathop{\vbox{\m@th\ialign{##\crcr\noalign{\kern3\p@}%
+\DeclareRobustCommand\overbrace[1]
+     {\mathop{\vbox{\m@th\ialign{##\crcr\noalign{\kern3\p@}%
       \downbracefill\crcr\noalign{\kern3\p@\nointerlineskip}%
       $\hfil\displaystyle{#1}\hfil$\crcr}}}\limits}
-\def\underbrace#1{\mathop{\vtop{\m@th\ialign{##\crcr
+\DeclareRobustCommand\underbrace[1]{\mathop{\vtop{\m@th\ialign{##\crcr
    $\hfil\displaystyle{#1}\hfil$\crcr
    \noalign{\kern3\p@\nointerlineskip}%
    \upbracefill\crcr\noalign{\kern3\p@}}}}\limits}
-\def\skew#1#2#3{{\muskip\z@#1mu\divide\muskip\z@\tw@ \mkern\muskip\z@
+\DeclareRobustCommand\skew[3]
+  {{\muskip\z@#1mu\divide\muskip\z@\tw@ \mkern\muskip\z@
     #2{\mkern-\muskip\z@{#3}\mkern\muskip\z@}\mkern-\muskip\z@}{}}
-\def\rightarrowfill{$\m@th\smash-\mkern-7mu%
+\DeclareRobustCommand\rightarrowfill{$\m@th\smash-\mkern-7mu%
   \cleaders\hbox{$\mkern-2mu\smash-\mkern-2mu$}\hfill
   \mkern-7mu\mathord\rightarrow$}
-\def\leftarrowfill{$\m@th\mathord\leftarrow\mkern-7mu%
+\DeclareRobustCommand\leftarrowfill{$\m@th\mathord\leftarrow\mkern-7mu%
   \cleaders\hbox{$\mkern-2mu\smash-\mkern-2mu$}\hfill
   \mkern-7mu\smash-$}
 \DeclareMathSymbol{\braceld}{\mathord}{largesymbols}{"7A}
 \DeclareMathSymbol{\bracerd}{\mathord}{largesymbols}{"7B}
 \DeclareMathSymbol{\bracelu}{\mathord}{largesymbols}{"7C}
 \DeclareMathSymbol{\braceru}{\mathord}{largesymbols}{"7D}
-\def\downbracefill{$\m@th \setbox\z@\hbox{$\braceld$}%
+\DeclareRobustCommand\downbracefill{$\m@th \setbox\z@\hbox{$\braceld$}%
   \braceld\leaders\vrule \@height\ht\z@ \@depth\z@\hfill\braceru
   \bracelu\leaders\vrule \@height\ht\z@ \@depth\z@\hfill\bracerd$}
-\def\upbracefill{$\m@th \setbox\z@\hbox{$\braceld$}%
+\DeclareRobustCommand\upbracefill{$\m@th \setbox\z@\hbox{$\braceld$}%
   \bracelu\leaders\vrule \@height\ht\z@ \@depth\z@\hfill\bracerd
   \braceld\leaders\vrule \@height\ht\z@ \@depth\z@\hfill\braceru$}
 \DeclareMathDelimiter{\lmoustache}   % top from (, bottom from )
@@ -503,16 +505,16 @@
 \DeclareMathSymbol{\mathparagraph}{\mathord}{symbols}{"7B}
 \DeclareMathSymbol{\mathsection}{\mathord}{symbols}{"78}
 \DeclareMathSymbol{\mathdollar}{\mathord}{operators}{"24}
-\def\mathsterling{\mathit{\mathchar"7024}}
-\def\mathunderscore{\kern.06em\vbox{\hrule\@width.3em}}
-\def\mathellipsis{\mathinner{\ldotp\ldotp\ldotp}}%
-\def\big#1{\leavevmode@ifvmode
+\DeclareRobustCommand\mathsterling{\mathit{\mathchar"7024}}
+\DeclareRobustCommand\mathunderscore{\kern.06em\vbox{\hrule\@width.3em}}
+\DeclareRobustCommand\mathellipsis{\mathinner{\ldotp\ldotp\ldotp}}%
+\DeclareRobustCommand\big[1]{\leavevmode@ifvmode
    {\hbox{$\left#1\vbox to8.5\p@{}\right.\n@space$}}}
-\def\Big#1{\leavevmode@ifvmode
+\DeclareRobustCommand\Big[1]{\leavevmode@ifvmode
    {\hbox{$\left#1\vbox to11.5\p@{}\right.\n@space$}}}
-\def\bigg#1{\leavevmode@ifvmode
+\DeclareRobustCommand\bigg[1]{\leavevmode@ifvmode
    {\hbox{$\left#1\vbox to14.5\p@{}\right.\n@space$}}}
-\def\Bigg#1{\leavevmode@ifvmode
+\DeclareRobustCommand\Bigg[1]{\leavevmode@ifvmode
    {\hbox{$\left#1\vbox to17.5\p@{}\right.\n@space$}}}
 \def\n@space{\nulldelimiterspace\z@ \m@th}
 \def\operator@font{\mathgroup\symoperators}
diff --git a/Master/texmf-dist/tex/latex-dev/base/fonttext.cfg b/Master/texmf-dist/tex/latex-dev/base/fonttext.cfg
index 7688045b808..b89620bc4e1 100644
--- a/Master/texmf-dist/tex/latex-dev/base/fonttext.cfg
+++ b/Master/texmf-dist/tex/latex-dev/base/fonttext.cfg
@@ -8,7 +8,7 @@
 %% 
 %% This is a generated file.
 %% 
-%% Copyright 1993-2018
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -21,7 +21,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
@@ -37,7 +37,7 @@
 %% 
 %%% From File: fontdef.dtx
 \ProvidesFile{fonttext.cfg}
-           [2018/09/24 v3.0b LaTeX Kernel
+           [2019/08/27 v3.0c LaTeX Kernel
 (Uncustomised text
            font setup)]
 %%
diff --git a/Master/texmf-dist/tex/latex-dev/base/fonttext.ltx b/Master/texmf-dist/tex/latex-dev/base/fonttext.ltx
index 403bf445c89..f613ef0a6e3 100644
--- a/Master/texmf-dist/tex/latex-dev/base/fonttext.ltx
+++ b/Master/texmf-dist/tex/latex-dev/base/fonttext.ltx
@@ -8,7 +8,7 @@
 %% 
 %% This is a generated file.
 %% 
-%% Copyright 1993-2018
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -21,7 +21,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
@@ -37,7 +37,7 @@
 %% 
 %%% From File: fontdef.dtx
 \ProvidesFile{fonttext.ltx}
-           [2018/09/24 v3.0b LaTeX Kernel
+           [2019/08/27 v3.0c LaTeX Kernel
 (Text
            font setup)]
 \typeout{=== Don't modify this file, use a .cfg file instead ===^^J}
diff --git a/Master/texmf-dist/tex/latex-dev/base/graphpap.sty b/Master/texmf-dist/tex/latex-dev/base/graphpap.sty
index 13843220fbd..5120d3ee7e8 100644
--- a/Master/texmf-dist/tex/latex-dev/base/graphpap.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/graphpap.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/hyphen.ltx b/Master/texmf-dist/tex/latex-dev/base/hyphen.ltx
index 7f16799dbbd..6d9482110c4 100644
--- a/Master/texmf-dist/tex/latex-dev/base/hyphen.ltx
+++ b/Master/texmf-dist/tex/latex-dev/base/hyphen.ltx
@@ -8,7 +8,7 @@
 %% 
 %% This is a generated file.
 %% 
-%% Copyright 1993-2018
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -21,7 +21,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/idx.tex b/Master/texmf-dist/tex/latex-dev/base/idx.tex
index 69b8af2c231..1d74b1fca0d 100644
--- a/Master/texmf-dist/tex/latex-dev/base/idx.tex
+++ b/Master/texmf-dist/tex/latex-dev/base/idx.tex
@@ -1,6 +1,6 @@
 % \iffalse meta-comment
 %
-% Copyright 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
+% Copyright (C) 1993-2019
 % The LaTeX3 Project and any individual authors listed elsewhere
 % in this file. 
 % 
@@ -13,7 +13,7 @@
 % The latest version of this license is in
 %    https://www.latex-project.org/lppl.txt
 % and version 1.3c or later is part of all distributions of LaTeX 
-% version 2005/12/01 or later.
+% version 2008 or later.
 % 
 % This file has the LPPL maintenance status "maintained".
 % 
diff --git a/Master/texmf-dist/tex/latex-dev/base/ifthen.sty b/Master/texmf-dist/tex/latex-dev/base/ifthen.sty
index 25d7103275e..09e4387d97a 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ifthen.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/ifthen.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/inputenc.sty b/Master/texmf-dist/tex/latex-dev/base/inputenc.sty
index 9a9e87ae3c0..91b9b59a45c 100644
--- a/Master/texmf-dist/tex/latex-dev/base/inputenc.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/inputenc.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/lablst.tex b/Master/texmf-dist/tex/latex-dev/base/lablst.tex
index 241090e53e6..fd65579713d 100644
--- a/Master/texmf-dist/tex/latex-dev/base/lablst.tex
+++ b/Master/texmf-dist/tex/latex-dev/base/lablst.tex
@@ -1,6 +1,6 @@
 % \iffalse meta-comment
 %
-% Copyright 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
+% Copyright (C) 1993-2019
 % The LaTeX3 Project and any individual authors listed elsewhere
 % in this file. 
 % 
@@ -13,7 +13,7 @@
 % The latest version of this license is in
 %    https://www.latex-project.org/lppl.txt
 % and version 1.3c or later is part of all distributions of LaTeX 
-% version 2005/12/01 or later.
+% version 2008 or later.
 % 
 % This file has the LPPL maintenance status "maintained".
 % 
diff --git a/Master/texmf-dist/tex/latex-dev/base/latex.ltx b/Master/texmf-dist/tex/latex-dev/base/latex.ltx
index 1450dc0fdb4..3a0686943a4 100644
--- a/Master/texmf-dist/tex/latex-dev/base/latex.ltx
+++ b/Master/texmf-dist/tex/latex-dev/base/latex.ltx
@@ -49,7 +49,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2018
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -62,7 +62,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
@@ -701,7 +701,8 @@
 \def\fmtname{LaTeX2e}
 \edef\fmtversion
    {2019-10-01}
-\def\patch@level{-2}
+\def\patch@level{-3}
+\edef\development@branch@name{development \the\year-\the\month-\the\day}
 \iffalse
 \def\reserved@a#1/#2/#3\@nil{%
   \count@\year
@@ -738,15 +739,28 @@
     \write16{\fmtname \space<\fmtversion> patch level \patch@level}
   \else
     \everyjob\expandafter{\the\everyjob
-      \typeout{\fmtname \space<\fmtversion> pre-release\patch@level}}
+      \typeout{\fmtname \space<\fmtversion> pre-release\patch@level
+        \ifx\development@branch@name\@undefined  \else
+          \ifx\development@branch@name\@empty  \else
+            \space (\development@branch@name\space branch)%
+          \fi
+        \fi
+    }}
     \immediate
-    \write16{\fmtname \space<\fmtversion> pre-release\patch@level}
+    \write16{\fmtname \space<\fmtversion> pre-release\patch@level
+        \ifx\development@branch@name\@undefined  \else
+          \ifx\development@branch@name\@empty  \else
+            \space (\development@branch@name\space branch)%
+          \fi
+        \fi
+    }
     \fi
   \fi
 \let\@currname\@empty
 \def\IncludeInRelease#1{%
  \if@includeinrelease
-  \PackageError{latexrelease}{mis-matched IncludeInRelease}{}%
+   \PackageError{latexrelease}{mis-matched IncludeInRelease}%
+                {There is an \string\EndIncludeRelease\space missing}%
   \@includeinreleasefalse
   \fi
   \kernel@ifnextchar[%
@@ -783,7 +797,7 @@
 \long\def\@check@IncludeInRelease#1\IncludeInRelease
                                    #2#3\@end@check@IncludeInRelease{%
   \ifx\@check@IncludeInRelease#2\else
-    \PackageError{latexrelease}{skipped IncludeInRelease}{}%
+    \PackageError{latexrelease}{skipped IncludeInRelease for tag \string#2}{}%
   \fi}
 %%% From File: ltdefns.dtx
 \def\two@digits#1{\ifnum#1<10 0\fi\number#1}
@@ -1037,12 +1051,12 @@
   {%
     \@ifundefined{\expandafter\@gobble\string#1\space}%
     {%
-      \expandafter\let\csname
+      \global\expandafter\let\csname
       \expandafter\@gobble\string#1\space\endcsname=#1%
       \edef\reserved@a{\string#1}%
       \def\reserved@b{#1}%
       \edef\reserved@b{\expandafter\strip@prefix\meaning\reserved@b}%
-      \edef#1{%
+      \xdef#1{%
         \ifx\reserved@a\reserved@b
           \noexpand\x@protect\noexpand#1%
         \fi
@@ -1052,6 +1066,17 @@
     {\@latex@info{The control sequence `\string#1' is already robust}}%
    }%
 }%
+
+\def\kernel@make@fragile#1{%
+  \@ifundefined{\expandafter\@gobble\string#1\space}%
+     {}%
+     {%
+      \global\expandafter\let\expandafter #1\csname
+      \expandafter\@gobble\string#1\space\endcsname
+      \global\expandafter\let\csname
+      \expandafter\@gobble\string#1\space\endcsname\@undefined
+     }%
+}
 \def\@ifundefined#1{%
   \ifcsname#1\endcsname\@ifundefin@d@i\else\@ifundefin@d@ii\fi{#1}}
 \long\def\@ifundefin@d@i#1\fi#2{\fi
@@ -1098,9 +1123,6 @@
   \reserved@c}
 \def\:{\let\@sptoken= } \:  % this makes \@sptoken a space token
 \def\:{\@xifnch} \expandafter\def\: {\futurelet\@let@token\@ifnch}
-
-\def\makeatletter{\catcode`\@11\relax}
-\def\makeatother{\catcode`\@12\relax}
 \def\@ifstar#1{\@ifnextchar *{\@firstoftwo{#1}}}
 \long\def\@dblarg#1{\kernel@ifnextchar[{#1}{\@xdblarg{#1}}}
 \long\def\@xdblarg#1#2{#1[{#2}]{#2}}
@@ -1110,6 +1132,9 @@
   \edef #1{\expandafter\strip@prefix
            \meaning #1}%
 }
+\DeclareRobustCommand\makeatletter{\catcode`\@11\relax}
+\DeclareRobustCommand\makeatother{\catcode`\@12\relax}
+
 \def\@latex@info#1{}
 \DeclareRobustCommand{\-}{%
   \discretionary{%
@@ -1123,6 +1148,22 @@
 \let\@dischyph=\-
 \newif\if@includeinrelease
 \@includeinreleasefalse
+\MakeRobust\allowbreak
+\MakeRobust\bigbreak
+\MakeRobust\break
+\MakeRobust\dotfill
+\MakeRobust\frenchspacing
+\MakeRobust\goodbreak
+\MakeRobust\hrulefill
+\MakeRobust\medbreak
+\MakeRobust\nobreak
+\MakeRobust\nonfrenchspacing
+\MakeRobust\obeylines
+\MakeRobust\obeyspaces
+\MakeRobust\slash
+\MakeRobust\smallbreak
+\MakeRobust\strut
+\MakeRobust\underbar
 %%% From File: ltalloc.dtx
 \chardef\@xxxii=32
 \mathchardef\@Mi=10001
@@ -1405,6 +1446,9 @@ Type  H <return>  for immediate help.}%
    \ifmmode
     \@latex@error{Command \protect#1 invalid in math mode}\@ehc
    \fi}
+
+\let\conditionally@traceon\@empty
+\let\conditionally@traceoff\@empty
 %%% From File: ltpar.dtx
 \message{par,}
 \def\@setpar#1{\def\par{#1}\def\@par{#1}}
@@ -1412,8 +1456,18 @@ Type  H <return>  for immediate help.}%
 \def\@restorepar{\def\par{\@par}}
 %%% From File: ltspace.dtx
 \message{spacing,}
-\def\pagebreak{\@testopt{\@no@pgbk-}4}
-\def\nopagebreak{\@testopt\@no@pgbk4}
+\DeclareRobustCommand\pagebreak{\@testopt{\@no@pgbk-}4}
+\DeclareRobustCommand\nopagebreak{\@testopt\@no@pgbk4}
+\DeclareRobustCommand\linebreak{\@testopt{\@no@lnbk-}4}
+\DeclareRobustCommand\nolinebreak{\@testopt\@no@lnbk4}
+\DeclareRobustCommand\samepage{\interlinepenalty\@M
+   \postdisplaypenalty\@M
+   \interdisplaylinepenalty\@M
+   \@beginparpenalty\@M
+   \@endparpenalty\@M
+   \@itempenalty\@M
+   \@secpenalty\@M
+   \interfootnotelinepenalty\@M}
 \def\@no@pgbk #1[#2]{%
   \ifvmode
     \penalty #1\@getpen{#2}%
@@ -1422,8 +1476,6 @@ Type  H <return>  for immediate help.}%
     \vadjust{\penalty #1\@getpen{#2}}%
     \@esphack
   \fi}
-\def\linebreak{\@testopt{\@no@lnbk-}4}
-\def\nolinebreak{\@testopt\@no@lnbk4}
 \def\@no@lnbk #1[#2]{%
   \ifvmode
     \@nolnerr
@@ -1436,14 +1488,6 @@ Type  H <return>  for immediate help.}%
       \ignorespaces
     \fi
   \fi}
-\def\samepage{\interlinepenalty\@M
-   \postdisplaypenalty\@M
-   \interdisplaylinepenalty\@M
-   \@beginparpenalty\@M
-   \@endparpenalty\@M
-   \@itempenalty\@M
-   \@secpenalty\@M
-   \interfootnotelinepenalty\@M}
 \DeclareRobustCommand\\{%
   \let \reserved@e \relax
   \let \reserved@f \relax
@@ -1627,9 +1671,9 @@ Type  H <return>  for immediate help.}%
 \newskip\fill
 \fill = 0pt plus 1fill
 \def\stretch#1{\z@ \@plus #1fill\relax}
-\def\thinspace{\leavevmode@ifvmode\kern .16667em }
-\def\negthinspace{\leavevmode@ifvmode\kern-.16667em }
-\def\enspace{\leavevmode@ifvmode\kern.5em }
+\DeclareRobustCommand\thinspace{\leavevmode@ifvmode\kern .16667em }
+\DeclareRobustCommand\negthinspace{\leavevmode@ifvmode\kern-.16667em }
+\DeclareRobustCommand\enspace{\leavevmode@ifvmode\kern.5em }
 \protected\def\leavevmode@ifvmode{\ifvmode\expandafter\indent\fi}
 \def\enskip{\hskip.5em\relax}
 \def\quad{\hskip1em\relax}
@@ -1640,7 +1684,7 @@ Type  H <return>  for immediate help.}%
 \@gobble\ignorespaces}}
 \gdef\restorecr{\catcode`\^^M5 }}
 %%% From File: ltlogos.dtx
-\def\TeX{T\kern-.1667em\lower.5ex\hbox{E}\kern-.125emX\@}
+\DeclareRobustCommand\TeX{T\kern-.1667em\lower.5ex\hbox{E}\kern-.125emX\@}
 \DeclareRobustCommand{\LaTeX}{L\kern-.36em%
         {\sbox\z@ T%
          \vbox to\ht\z@{\hbox{\check@mathfonts
@@ -1806,7 +1850,7 @@ Type  H <return>  for immediate help.}%
 \def\quote@name#1{"\quote@@name#1\@gobble""}
 \def\quote@@name#1"{#1\quote@@name}
 \def\unquote@name#1{\quote@@name#1\@gobble"}
-\def\IfFileExists#1{%
+\DeclareRobustCommand\IfFileExists[1]{%
   \set@curr@file{#1}%
   \edef\q@curr@file{\expandafter\quote@name\expandafter{\@curr@file}}%
   \expandafter\IfFileExists@\expandafter{\q@curr@file}}
@@ -1836,7 +1880,7 @@ Type  H <return>  for immediate help.}%
       \@break@tfor
     \fi}%
   \reserved@a}
-\long\def \InputIfFileExists#1#2{%
+\DeclareRobustCommand \InputIfFileExists[2]{%
   \IfFileExists{#1}%
     {%
   \expandafter\@swaptwoargs\expandafter
@@ -2020,7 +2064,7 @@ Type  H <return>  for immediate help.}%
       \reserved@a ^^@}}
 \catcode\z@=15\relax
 \@onlypreamble\DeclareTextComposite
-\def\UseTextAccent#1#2#3{%
+\DeclareRobustCommand\UseTextAccent[3]{%
   \hmode@start@before@group
    {%
     \let\hmode@start@before@group\@firstofone
@@ -2028,7 +2072,7 @@ Type  H <return>  for immediate help.}%
     \@use@text@encoding{#1}%
     #2{\@use@text@encoding\@curr@enc#3}%
    }}
-\def\UseTextSymbol#1#2{%
+\DeclareRobustCommand\UseTextSymbol[2]{%
        \hmode@start@before@group
        {%
           \def\@wrong@font@char{\MessageBreak
@@ -2308,13 +2352,12 @@ Type  H <return>  for immediate help.}%
 \def\addtolength#1#2{\advance#1 #2\relax}
 \def\@settodim#1#2#3{\setbox\@tempboxa\hbox{{#3}}#2#1\@tempboxa
        \setbox\@tempboxa\box\voidb@x}
-\def\settoheight{\@settodim\ht}
-\def\settodepth {\@settodim\dp}
-\def\settowidth {\@settodim\wd}
+\DeclareRobustCommand\settoheight{\@settodim\ht}
+\DeclareRobustCommand\settodepth {\@settodim\dp}
+\DeclareRobustCommand\settowidth {\@settodim\wd}
 \def\@settopoint#1{\divide#1\p@\multiply#1\p@}
 %%% From File: ltfssbas.dtx
 %% Copyright (C) 1989-2002 Frank Mittelbach and Rainer Sch\"opf
-\expandafter\let\csname ver@autofss1.sty\endcsname\fmtversion
 \def\@nomath#1{\relax\ifmmode
    \@font@warning{Command \noexpand#1invalid in math mode}\fi}
 \gdef\no@alphabet@error#1{\relax \ifmmode
@@ -2527,7 +2570,7 @@ Type  H <return>  for immediate help.}%
 \DeclareRobustCommand\fontfamily[1]{\edef\f@family{#1}}
 \DeclareRobustCommand\fontseries[1]{\edef\f@series{#1}}
 \DeclareRobustCommand\fontshape [1]{\edef\f@shape{#1}}
-\def\usefont#1#2#3#4{\fontencoding{#1}\fontfamily{#2}%
+\DeclareRobustCommand\usefont[4]{\fontencoding{#1}\fontfamily{#2}%
              \fontseries{#3}\fontshape{#4}\selectfont
              \ignorespaces}
 \DeclareRobustCommand\linespread[1]
@@ -2708,7 +2751,7 @@ Type  H <return>  for immediate help.}%
   \let\noaccents@\@empty
 \fi
 \ifx\XeTeXcharclass\@undefined
-\gdef\showhyphens#1{%
+\DeclareRobustCommand\showhyphens[1]{%
   \setbox0\vbox{%
     \color@begingroup
     \everypar{}%
@@ -2717,7 +2760,7 @@ Type  H <return>  for immediate help.}%
     \pretolerance\m@ne\tolerance\m@ne\hbadness\z@\showboxdepth\z@\ #1%
     \color@endgroup}}
 \else
-\long\def\showhyphens#1{%
+\DeclareRobustCommand\showhyphens[1]{%
   \setbox0\vbox{%
     \usefont{TU}{lmr}{m}{n}%
     \hsize 1sp %
@@ -3585,9 +3628,14 @@ Type  H <return>  for immediate help.}%
       \advance\count\tw@-\count@
       \if\relax\noexpand#1% is command?
         \edef\reserved@a{\noexpand\in@
-           {\expandafter\@gobble\string\mathaccent}{\meaning#1}}%
+          {\expandafter\@gobble\string\mathaccent}
+          {\expandafter\meaning
+           \csname\expandafter\@gobble\string#1\space\endcsname}}%
         \reserved@a
         \ifin@
+          \expandafter\let
+            \csname\expandafter\@gobble\string#1\space\endcsname
+            \@undefined
           \expandafter\set@mathaccent
              \csname sym#3\endcsname#1#2%
              {\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
@@ -3613,7 +3661,9 @@ Type  H <return>  for immediate help.}%
 }
 \@onlypreamble\DeclareMathAccent
 \def\set@mathaccent#1#2#3#4{%
-  \xdef#2{\mathaccent"\mathchar@type#3\hexnumber@#1#4\relax}}
+  \xdef#2{\mathaccent"\mathchar@type#3\hexnumber@#1#4\relax}%
+  \MakeRobust#2%
+}
 \@onlypreamble\set@mathaccent
 \def\DeclareMathSymbol#1#2#3#4{%
   \expandafter\in@\csname sym#3\expandafter\endcsname
@@ -3627,17 +3677,20 @@ Type  H <return>  for immediate help.}%
       \multiply\count@\sixt@@n
       \advance\count\tw@-\count@
       \if\relax\noexpand#1% is command?
+        \edef\reserved@b{\expandafter\noexpand
+                         \csname\expandafter\@gobble\string#1\space\endcsname}%
         \edef\reserved@a
           {\noexpand\in@{\expandafter\@gobble\string\mathchar}%
-                        {\meaning#1}}%
+                        {\meaning#1\expandafter\meaning\reserved@b}}%
         \reserved@a
+        \global\expandafter\let\reserved@b\@undefined
         \ifin@
           \expandafter\set@mathsymbol
              \csname sym#3\endcsname#1#2%
              {\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
           \@font@info{Redeclaring math symbol \string#1}%
         \else
-            \expandafter\ifx
+          \expandafter\ifx
             \csname\expandafter\@gobble\string#1\endcsname
             \relax
             \expandafter\set@mathsymbol
@@ -3710,9 +3763,11 @@ Type  H <return>  for immediate help.}%
         \edef\reserved@d{\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
       %
         \edef\reserved@a{\noexpand\in@
-            {\expandafter\@gobble\string\delimiter}{\meaning#1}}%
+          {\expandafter\@gobble\string\delimiter}%
+          {\expandafter\meaning\csname\expandafter\@gobble\string#1\space\endcsname}}%
         \reserved@a
         \ifin@
+          \expandafter\let\csname\expandafter\@gobble\string#1\space\endcsname\@undefined
           \expandafter\set@mathdelimiter
              \csname sym#3\expandafter\endcsname
              \csname sym#5\endcsname#1#2%
@@ -3776,7 +3831,9 @@ Type  H <return>  for immediate help.}%
 \@onlypreamble\@xDeclareMathDelimiter
 \def\set@mathdelimiter#1#2#3#4#5#6{%
   \xdef#3{\delimiter"\mathchar@type#4\hexnumber@#1#5%
-                                     \hexnumber@#2#6 }}
+    \hexnumber@#2#6 }%
+  \MakeRobust#3%
+}
 \@onlypreamble\set@mathdelimiter
 \def\set@@mathdelimiter#1#2#3#4#5{%
   \global\delcode`#3="\hexnumber@#1#4\hexnumber@#2#5\relax}
@@ -3971,20 +4028,20 @@ Type  H <return>  for immediate help.}%
          .
         }%
    \fi}
-\def\boldmath{\@nomath\boldmath
+\DeclareRobustCommand\boldmath{\@nomath\boldmath
               \mathversion{bold}}
-\def\unboldmath{\@nomath\unboldmath
+\DeclareRobustCommand\unboldmath{\@nomath\unboldmath
               \mathversion{normal}}
 \def\math@version{normal}
 \def\newfont#1#2{\@ifdefinable#1{\font#1=#2\relax}}
-\def\symbol#1{\char #1\relax}
+\DeclareRobustCommand\symbol[1]{\char #1\relax}
 \def\@setfontsize#1#2#3{\@nomath#1%
     \ifx\protect\@typeset@protect
       \let\@currsize#1%
     \fi
     \fontsize{#2}{#3}\selectfont}
 \def\@setsize#1#2#3#4{\@setfontsize#1{#4}{#2}}
-\def\oldstylenums#1{%
+\DeclareRobustCommand\oldstylenums[1]{%
    \begingroup
     \spaceskip\fontdimen\tw@\font
     \usefont{OML}{\rmdefault}{\f@series}{it}%
@@ -4194,6 +4251,7 @@ Type  H <return>  for immediate help.}%
    \c@page}}
 %%% From File: ltxref.dtx
 \message{x-ref,}
+
 \def\G@refundefinedtrue{%
   \gdef\@refundefined{%
     \@latex@warning@no@line{There were undefined references}}}
@@ -4226,8 +4284,11 @@ Type  H <return>  for immediate help.}%
   \@esphack}
 \def\refstepcounter#1{\stepcounter{#1}%
     \protected@edef\@currentlabel
-       {\csname p@#1\endcsname\csname the#1\endcsname}%
+       {\csname p@#1\expandafter\endcsname\csname the#1\endcsname}%
 }
+\def\labelformat#1{\expandafter\def\csname p@#1\endcsname##1}
+\DeclareRobustCommand\Ref[1]{\protected@edef\@tempa{\ref{#1}}%
+   \expandafter\MakeUppercase\@tempa}
 \def\@currentlabel{}
 %%% From File: ltmiscen.dtx
 \message{environments,}
@@ -4294,7 +4355,7 @@ Type  H <return>  for immediate help.}%
 \def\stop{\clearpage\deadcycles\z@\let\par\@@par\@@end}
 \everypar{\@nodocument} %% To get an error if text appears before the
 \nullfont               %% \begin{document}
-\def\begin#1{%
+\DeclareRobustCommand\begin[1]{%
   \@ifundefined{#1}%
     {\def\reserved@a{\@latex@error{Environment #1 undefined}\@eha}}%
     {\def\reserved@a{\def\@currenvir{#1}%
@@ -4302,7 +4363,25 @@ Type  H <return>  for immediate help.}%
      \csname #1\endcsname}}%
   \@ignorefalse
   \begingroup\@endpefalse\reserved@a}
-\def\end#1{%
+\edef\end
+  {\unexpanded{%
+     \romannumeral
+       \ifx\protect\@typeset@protect
+       \expandafter       %1
+         \expandafter        %2
+       \expandafter       %1
+           \expandafter         %3 expands the \csname inside \end<space>
+       \expandafter       %1
+         \expandafter        %2  expands \end<space>
+       \expandafter       %1     expands the \else
+           \z@
+       \else
+         \expandafter\z@\expandafter\protect
+       \fi
+   }%
+   \expandafter\noexpand\csname end \endcsname
+  }
+\@namedef{end }#1{%
   \csname end#1\endcsname\@checkend{#1}%
   \expandafter\endgroup\if@endpe\@doendpe\fi
   \if@ignore\@ignorefalse\ignorespaces\fi}
@@ -4317,23 +4396,23 @@ Type  H <return>  for immediate help.}%
 \def\@icentercr[#1]{\vskip #1\ignorespaces}
 \def\center{\trivlist \centering\item\relax}
 \def\endcenter{\endtrivlist}
-\def\centering{%
+\DeclareRobustCommand\centering{%
   \let\\\@centercr
   \rightskip\@flushglue\leftskip\@flushglue
   \parindent\z@\parfillskip\z@skip}
-\newskip\@rightskip \@rightskip \z@skip
-\def\flushleft{\trivlist \raggedright\item\relax}
-\def\endflushleft{\endtrivlist}
-\def\raggedright{%
+\DeclareRobustCommand\raggedright{%
   \let\\\@centercr\@rightskip\@flushglue \rightskip\@rightskip
   \leftskip\z@skip
   \parindent\z@}
-\def\flushright{\trivlist \raggedleft\item\relax}
-\def\endflushright{\endtrivlist}
-\def\raggedleft{%
+\DeclareRobustCommand\raggedleft{%
   \let\\\@centercr
   \rightskip\z@skip\leftskip\@flushglue
   \parindent\z@\parfillskip\z@skip}
+\newskip\@rightskip \@rightskip \z@skip
+\def\flushleft{\trivlist \raggedright\item\relax}
+\def\endflushleft{\endtrivlist}
+\def\flushright{\trivlist \raggedleft\item\relax}
+\def\endflushright{\endtrivlist}
 \message{verbatim,}
 {\catcode`\ =\active%
 \gdef\@vobeyspaces{\catcode`\ \active\let \@xobeysp}}
@@ -4421,56 +4500,56 @@ Type  H <return>  for immediate help.}%
 \def\@noligs{\let\do\do@noligs \verbatim@nolig@list}
 %%% From File: ltmath.dtx
 \message{math definitions,}
-\def\log{\mathop{\operator@font log}\nolimits}
-\def\lg{\mathop{\operator@font lg}\nolimits}
-\def\ln{\mathop{\operator@font ln}\nolimits}
-\def\lim{\mathop{\operator@font lim}}
-\def\limsup{\mathop{\operator@font lim\,sup}}
-\def\liminf{\mathop{\operator@font lim\,inf}}
-\def\sin{\mathop{\operator@font sin}\nolimits}
-\def\arcsin{\mathop{\operator@font arcsin}\nolimits}
-\def\sinh{\mathop{\operator@font sinh}\nolimits}
-\def\cos{\mathop{\operator@font cos}\nolimits}
-\def\arccos{\mathop{\operator@font arccos}\nolimits}
-\def\cosh{\mathop{\operator@font cosh}\nolimits}
-\def\tan{\mathop{\operator@font tan}\nolimits}
-\def\arctan{\mathop{\operator@font arctan}\nolimits}
-\def\tanh{\mathop{\operator@font tanh}\nolimits}
-\def\cot{\mathop{\operator@font cot}\nolimits}
-\def\coth{\mathop{\operator@font coth}\nolimits}
-\def\sec{\mathop{\operator@font sec}\nolimits}
-\def\csc{\mathop{\operator@font csc}\nolimits}
-\def\max{\mathop{\operator@font max}}
-\def\min{\mathop{\operator@font min}}
-\def\sup{\mathop{\operator@font sup}}
-\def\inf{\mathop{\operator@font inf}}
-\def\arg{\mathop{\operator@font arg}\nolimits}
-\def\ker{\mathop{\operator@font ker}\nolimits}
-\def\dim{\mathop{\operator@font dim}\nolimits}
-\def\hom{\mathop{\operator@font hom}\nolimits}
-\def\det{\mathop{\operator@font det}}
-\def\exp{\mathop{\operator@font exp}\nolimits}
-\def\Pr{\mathop{\operator@font Pr}}
-\def\gcd{\mathop{\operator@font gcd}}
-\def\deg{\mathop{\operator@font deg}\nolimits}
-\def\bmod{%
+\DeclareRobustCommand\log{\mathop{\operator@font log}\nolimits}
+\DeclareRobustCommand\lg{\mathop{\operator@font lg}\nolimits}
+\DeclareRobustCommand\ln{\mathop{\operator@font ln}\nolimits}
+\DeclareRobustCommand\lim{\mathop{\operator@font lim}}
+\DeclareRobustCommand\limsup{\mathop{\operator@font lim\,sup}}
+\DeclareRobustCommand\liminf{\mathop{\operator@font lim\,inf}}
+\DeclareRobustCommand\sin{\mathop{\operator@font sin}\nolimits}
+\DeclareRobustCommand\arcsin{\mathop{\operator@font arcsin}\nolimits}
+\DeclareRobustCommand\sinh{\mathop{\operator@font sinh}\nolimits}
+\DeclareRobustCommand\cos{\mathop{\operator@font cos}\nolimits}
+\DeclareRobustCommand\arccos{\mathop{\operator@font arccos}\nolimits}
+\DeclareRobustCommand\cosh{\mathop{\operator@font cosh}\nolimits}
+\DeclareRobustCommand\tan{\mathop{\operator@font tan}\nolimits}
+\DeclareRobustCommand\arctan{\mathop{\operator@font arctan}\nolimits}
+\DeclareRobustCommand\tanh{\mathop{\operator@font tanh}\nolimits}
+\DeclareRobustCommand\cot{\mathop{\operator@font cot}\nolimits}
+\DeclareRobustCommand\coth{\mathop{\operator@font coth}\nolimits}
+\DeclareRobustCommand\sec{\mathop{\operator@font sec}\nolimits}
+\DeclareRobustCommand\csc{\mathop{\operator@font csc}\nolimits}
+\DeclareRobustCommand\max{\mathop{\operator@font max}}
+\DeclareRobustCommand\min{\mathop{\operator@font min}}
+\DeclareRobustCommand\sup{\mathop{\operator@font sup}}
+\DeclareRobustCommand\inf{\mathop{\operator@font inf}}
+\DeclareRobustCommand\arg{\mathop{\operator@font arg}\nolimits}
+\DeclareRobustCommand\ker{\mathop{\operator@font ker}\nolimits}
+\DeclareRobustCommand\dim{\mathop{\operator@font dim}\nolimits}
+\DeclareRobustCommand\hom{\mathop{\operator@font hom}\nolimits}
+\DeclareRobustCommand\det{\mathop{\operator@font det}}
+\DeclareRobustCommand\exp{\mathop{\operator@font exp}\nolimits}
+\DeclareRobustCommand\Pr{\mathop{\operator@font Pr}}
+\DeclareRobustCommand\gcd{\mathop{\operator@font gcd}}
+\DeclareRobustCommand\deg{\mathop{\operator@font deg}\nolimits}
+\DeclareRobustCommand\bmod{%
   \nonscript\mskip-\medmuskip\mkern5mu%
   \mathbin{\operator@font mod}\penalty900\mkern5mu%
   \nonscript\mskip-\medmuskip}
-\def\pmod#1{%
+\DeclareRobustCommand\pmod[1]{%
   \allowbreak\mkern18mu({\operator@font mod}\,\,#1)}
-\def\bigl{\mathopen\big}
-\def\bigm{\mathrel\big}
-\def\bigr{\mathclose\big}
-\def\Bigl{\mathopen\Big}
-\def\Bigm{\mathrel\Big}
-\def\Bigr{\mathclose\Big}
-\def\biggl{\mathopen\bigg}
-\def\biggm{\mathrel\bigg}
-\def\biggr{\mathclose\bigg}
-\def\Biggl{\mathopen\Bigg}
-\def\Biggm{\mathrel\Bigg}
-\def\Biggr{\mathclose\Bigg}
+\DeclareRobustCommand\bigl{\mathopen\big}
+\DeclareRobustCommand\bigm{\mathrel\big}
+\DeclareRobustCommand\bigr{\mathclose\big}
+\DeclareRobustCommand\Bigl{\mathopen\Big}
+\DeclareRobustCommand\Bigm{\mathrel\Big}
+\DeclareRobustCommand\Bigr{\mathclose\Big}
+\DeclareRobustCommand\biggl{\mathopen\bigg}
+\DeclareRobustCommand\biggm{\mathrel\bigg}
+\DeclareRobustCommand\biggr{\mathclose\bigg}
+\DeclareRobustCommand\Biggl{\mathopen\Bigg}
+\DeclareRobustCommand\Biggm{\mathrel\Bigg}
+\DeclareRobustCommand\Biggr{\mathclose\Bigg}
 \newdimen\jot
 \jot=3pt
 \newcount\interdisplaylinepenalty
@@ -4493,11 +4572,13 @@ Type  H <return>  for immediate help.}%
   \dimen@\ht\z@ \advance\dimen@-\dp\z@
   \mkern5mu\raise.6\dimen@\copy\rootbox
   \mkern-10mu\box\z@}
+
 \newif\ifv@
 \newif\ifh@
-\def\vphantom{\v@true\h@false\ph@nt}
-\def\hphantom{\v@false\h@true\ph@nt}
-\def\phantom{\v@true\h@true\ph@nt}
+\DeclareRobustCommand\vphantom{\v@true\h@false\ph@nt}
+\DeclareRobustCommand\hphantom{\v@false\h@true\ph@nt}
+\DeclareRobustCommand\phantom{\v@true\h@true\ph@nt}
+\DeclareRobustCommand\mathstrut{\vphantom(}
 \def\ph@nt{%
   \ifmmode
     \expandafter\mathpalette\expandafter\mathph@nt
@@ -4513,8 +4594,7 @@ Type  H <return>  for immediate help.}%
   \ifv@ \ht\tw@\ht\z@ \dp\tw@\dp\z@\fi
   \ifh@ \wd\tw@\wd\z@\fi
   \leavevmode@ifvmode\box\tw@}
-\def\mathstrut{\vphantom(}
-\def\smash{%
+\DeclareRobustCommand\smash{%
   \relax % \relax, in case this comes first in \halign
   \ifmmode
     \expandafter\mathpalette\expandafter\mathsm@sh
@@ -4527,13 +4607,13 @@ Type  H <return>  for immediate help.}%
   \setbox\z@\hbox{$\m@th#1{#2}$}\finsm@sh}
 \def\finsm@sh{\ht\z@\z@ \dp\z@\z@ \leavevmode@ifvmode\box\z@}
 \def\buildrel#1\over#2{\mathrel{\mathop{\kern\z@#2}\limits^{#1}}}
-\def\cases#1{\left\{\,\vcenter{\normalbaselines\m@th
+\DeclareRobustCommand\cases[1]{\left\{\,\vcenter{\normalbaselines\m@th
     \ialign{$##\hfil$&\quad{##}\hfil\crcr#1\crcr}}\right.}
-\def\matrix#1{\null\,\vcenter{\normalbaselines\m@th
+\DeclareRobustCommand\matrix[1]{\null\,\vcenter{\normalbaselines\m@th
     \ialign{\hfil$##$\hfil&&\quad\hfil$##$\hfil\crcr
       \mathstrut\crcr\noalign{\kern-\baselineskip}
       #1\crcr\mathstrut\crcr\noalign{\kern-\baselineskip}}}\,}
-\def\pmatrix#1{\left(\matrix{#1}\right)}
+\DeclareRobustCommand\pmatrix[1]{\left(\matrix{#1}\right)}
 \def\bordermatrix#1{\begingroup \m@th
   \@tempdima 8.75\p@
   \setbox\z@\vbox{%
@@ -4566,7 +4646,7 @@ Type  H <return>  for immediate help.}%
 \def\>{\mskip\medmuskip}
 \def\;{\mskip\thickmuskip}
 \def\!{\mskip-\thinmuskip}
-\def\*{\discretionary{\thinspace\the\textfont2\char2}{}{}}
+\DeclareRobustCommand\*{\discretionary{\thinspace\the\textfont2\char2}{}{}}
 \let\:=\>
 \def\active@math@prime{^\bgroup\prim@s}
 {\catcode`\'=\active \global\let'\active@math@prime}
@@ -4621,8 +4701,8 @@ Type  H <return>  for immediate help.}%
 \def\equation{$$\refstepcounter{equation}}
 \def\endequation{\eqno \hbox{\@eqnnum}$$\@ignoretrue}
 \def\@eqnnum{{\normalfont \normalcolor (\theequation)}}
-\def\stackrel#1#2{\mathrel{\mathop{#2}\limits^{#1}}}
-\def\frac#1#2{{\begingroup#1\endgroup\over#2}}
+\DeclareRobustCommand\stackrel[2]{\mathrel{\mathop{#2}\limits^{#1}}}
+\DeclareRobustCommand\frac[2]{{\begingroup#1\endgroup\over#2}}
 \DeclareRobustCommand\sqrt{\@ifnextchar[\@sqrt\sqrtsign}
 \def\@sqrt[#1]{\root #1\of}
 \newcount\@eqcnt
@@ -4938,7 +5018,7 @@ Type  H <return>  for immediate help.}%
   \@ifnextchar(%)
     \@makepicbox
     {\@ifnextchar[\@makebox\mbox}}%
-\long\def\mbox#1{\leavevmode\hbox{#1}}
+\DeclareRobustCommand\mbox[1]{\leavevmode\hbox{#1}}
 \def\@makebox[#1]{%
   \@ifnextchar [{\@imakebox[#1]}{\@imakebox[#1][c]}}
 \long\def\@begin@tempboxa#1#2{%
@@ -4988,7 +5068,7 @@ Type  H <return>  for immediate help.}%
 \DeclareRobustCommand\savebox[1]{%
   \@ifnextchar(%)
     {\@savepicbox#1}{\@ifnextchar[{\@savebox#1}{\sbox#1}}}%
-\long\def\sbox#1#2{\setbox#1\hbox{%
+\DeclareRobustCommand\sbox[2]{\setbox#1\hbox{%
   \color@setgroup#2\color@endgroup}}
 \def\@savebox#1[#2]{%
   \@ifnextchar [{\@isavebox#1[#2]}{\@isavebox#1[#2][c]}}
@@ -5011,8 +5091,8 @@ Type  H <return>  for immediate help.}%
     \color@setgroup
       \ignorespaces}
 \def\endlrbox{\unskip\color@endgroup}
-\def\usebox#1{\leavevmode\copy #1\relax}
-\long\def\frame#1{%
+\DeclareRobustCommand\usebox[1]{\leavevmode\copy #1\relax}
+\DeclareRobustCommand\frame[1]{%
   \leavevmode
   \hbox{%
     \hskip-\@wholewidth
@@ -5028,7 +5108,7 @@ Type  H <return>  for immediate help.}%
     \hskip-\@wholewidth}}
 \newdimen\fboxrule
 \newdimen\fboxsep
-\long\def\fbox#1{%
+\DeclareRobustCommand\fbox[1]{%
   \leavevmode
   \setbox\@tempboxa\hbox{%
     \color@begingroup
@@ -5192,7 +5272,7 @@ Type  H <return>  for immediate help.}%
      \advance\@tempdimc\@tempdima
      \vrule\@width\@tempdimb\@height\@tempdimc\@depth-\@tempdima}}
 \let\@@underline\underline
-\def\underline#1{%
+\DeclareRobustCommand\underline[1]{%
   \relax
   \ifmmode\@@underline{#1}%
   \else $\@@underline{\hbox{#1}}\m@th$\relax\fi}
@@ -5222,11 +5302,11 @@ Type  H <return>  for immediate help.}%
 \def\@finalstrut#1{%
   \unskip\ifhmode\nobreak\fi\vrule\@width\z@\@height\z@\@depth\dp#1}
 \def\@@line{\hb@xt@\hsize}
-\def\leftline#1{\@@line{#1\hss}}
-\def\rightline#1{\@@line{\hss#1}}
-\def\centerline#1{\@@line{\hss#1\hss}}
-\def\rlap#1{\hb@xt@\z@{#1\hss}}
-\def\llap#1{\hb@xt@\z@{\hss#1}}
+\DeclareRobustCommand\leftline[1]{\@@line{#1\hss}}
+\DeclareRobustCommand\rightline[1]{\@@line{\hss#1}}
+\DeclareRobustCommand\centerline[1]{\@@line{\hss#1\hss}}
+\DeclareRobustCommand\rlap[1]{\hb@xt@\z@{#1\hss}}
+\DeclareRobustCommand\llap[1]{\hb@xt@\z@{\hss#1}}
 %%% From File: lttab.dtx
 \expandafter\let\csname ver@autotabg.sty\endcsname\fmtversion
 \newdimen\@gtempa
@@ -5246,7 +5326,7 @@ Type  H <return>  for immediate help.}%
 \newbox\@curfield
 \newbox\@tabfbox
 \newif\if@rjfield
-\gdef\@startline{%
+\def\@startline{%
      \ifnum \@nxttabmar >\@hightab
        \@badtab
        \global\@nxttabmar \@hightab
@@ -5256,7 +5336,7 @@ Type  H <return>  for immediate help.}%
      \global\setbox\@curline \hbox {}%
      \@startfield
      \strut}
-\gdef\@stopline{%
+\def\@stopline{%
   \unskip
   \@stopfield
   \if@rjfield
@@ -5272,21 +5352,20 @@ Type  H <return>  for immediate help.}%
     \@addfield
     \hbox{\@itemfudge\hskip\dimen\@curtabmar\box\@curline}%
   \fi}
-\gdef\@startfield{%
+\def\@startfield{%
   \global\setbox\@curfield\hbox\bgroup\color@begingroup}
-\gdef\@stopfield{%
+\def\@stopfield{%
   \color@endgroup\egroup}
-\gdef\@contfield{%
+\def\@contfield{%
   \global\setbox\@curfield\hbox\bgroup\color@begingroup
   \unhbox\@curfield}
-\gdef\@addfield{\global\setbox\@curline\hbox{\unhbox
+\def\@addfield{\global\setbox\@curline\hbox{\unhbox
      \@curline\unhbox\@curfield}}
-\gdef\@ifatmargin{\ifdim \wd\@curline =\z@}
-\gdef\@tabcr{\@stopline \@ifstar{\penalty \@M \@xtabcr}\@xtabcr}
-\gdef\@xtabcr{\@ifnextchar[\@itabcr{\@startline\ignorespaces}}
-\gdef\@itabcr[#1]{\vskip #1\@startline\ignorespaces}
-\gdef\kill{\@stopfield\@startline\ignorespaces}
-\gdef\tabbing{\lineskip \z@skip\let\>\@rtab\let\<\@ltab\let\=\@settab
+\def\@ifatmargin{\ifdim \wd\@curline =\z@}
+\def\@tabcr{\@stopline \@ifstar{\penalty \@M \@xtabcr}\@xtabcr}
+\def\@xtabcr{\@ifnextchar[\@itabcr{\@startline\ignorespaces}}
+\def\@itabcr[#1]{\vskip #1\@startline\ignorespaces}
+\def\tabbing{\lineskip \z@skip\let\>\@rtab\let\<\@ltab\let\=\@settab
      \let\+\@tabplus\let\-\@tabminus\let\`\@tabrj\let\'\@tablab
      \let\\=\@tabcr
      \@hightab\@firsttab
@@ -5299,16 +5378,16 @@ Type  H <return>  for immediate help.}%
        \rlap{\hskip\@totalleftmargin\indent\the\everypar}}%
      \def\@itemfudge{\box\@tabfbox}%
      \@startline\ignorespaces}
-\gdef\endtabbing{%
+\def\endtabbing{%
   \@stopline\ifnum\@tabpush >\z@ \@badpoptabs \fi\endtrivlist}
-\gdef\@rtab{\@stopfield\@addfield\ifnum \@curtab<\@hightab
+\def\@rtab{\@stopfield\@addfield\ifnum \@curtab<\@hightab
       \global\advance\@curtab \@ne \else\@badtab\fi
       \@tempdima\dimen\@curtab
       \advance\@tempdima -\dimen\@curtabmar
       \advance\@tempdima -\wd\@curline
       \global\setbox\@curline\hbox{\unhbox\@curline\hskip\@tempdima}%
       \@startfield\ignorespaces}
-\gdef\@settab{\@stopfield\@addfield
+\def\@settab{\@stopfield\@addfield
   \ifnum \@curtab <\@maxtab
     \ifnum\@curtab =\@hightab
       \advance\@hightab \@ne
@@ -5321,27 +5400,27 @@ Type  H <return>  for immediate help.}%
   \advance\dimen\@curtab \wd\@curline
   \@startfield
   \ignorespaces}
-\gdef\@ltab{\@ifatmargin\ifnum\@curtabmar >\@firsttab
+\def\@ltab{\@ifatmargin\ifnum\@curtabmar >\@firsttab
       \global\advance\@curtab \m@ne \global\advance\@curtabmar\m@ne\else
       \@badtab\fi\else
       \@latex@error{\string\<\space in mid line}\@ehd\fi\ignorespaces}
-\gdef\@tabplus{%
+\def\@tabplus{%
   \ifnum\@nxttabmar<\@hightab
     \global\advance\@nxttabmar\@ne
   \else
     \@badtab
   \fi
   \ignorespaces}
-\gdef\@tabminus{%
+\def\@tabminus{%
   \ifnum\@nxttabmar>\@firsttab
     \global\advance\@nxttabmar\m@ne
   \else
     \@badtab
   \fi
   \ignorespaces}
-\gdef\@tabrj{%
+\def\@tabrj{%
   \@stopfield\@addfield\global\@rjfieldtrue\@startfield\ignorespaces}
-\gdef\@tablab{%
+\def\@tablab{%
   \@stopfield
   \global\setbox\@curline\hbox{%
     \box\@curline
@@ -5350,10 +5429,10 @@ Type  H <return>  for immediate help.}%
     \hskip\tabbingsep}%
   \@startfield
   \ignorespaces}
-\gdef\pushtabs{%
+\DeclareRobustCommand\pushtabs{%
   \@stopfield\@addfield\global\advance\@tabpush \@ne \begingroup
        \@contfield}
-\gdef\poptabs{\@stopfield\@addfield
+\DeclareRobustCommand\poptabs{\@stopfield\@addfield
   \ifnum \@tabpush >\z@
     \endgroup
     \global\advance\@tabpush \m@ne
@@ -5365,8 +5444,9 @@ Type  H <return>  for immediate help.}%
     \@badpoptabs
   \fi
   \@contfield}
+\DeclareRobustCommand\kill{\@stopfield\@startline\ignorespaces}
 \newdimen\tabbingsep
-\def\extracolsep#1{\tabskip #1\relax}
+\DeclareRobustCommand\extracolsep[1]{\tabskip #1\relax}
 \def\array{\let\@acol\@arrayacol \let\@classz\@arrayclassz
  \let\@classiv\@arrayclassiv
  \let\\\@arraycr\let\@halignto\@empty\@tabarray}
@@ -5583,42 +5663,43 @@ Type  H <return>  for immediate help.}%
 \newdimen\unitlength \unitlength =1pt
 \newbox\@picbox
 \newdimen\@picht
-\long\gdef\picture#1{\pictur@#1}
-\gdef\pictur@(#1){%
+\long\def\picture#1{\pictur@#1}
+\def\pictur@(#1){%
   \@ifnextchar({\@picture(#1)}{\@picture(#1)(0,0)}}
-\gdef\@picture(#1,#2)(#3,#4){%
+\def\@picture(#1,#2)(#3,#4){%
   \@picht#2\unitlength
   \setbox\@picbox\hb@xt@#1\unitlength\bgroup
     \hskip -#3\unitlength
     \lower #4\unitlength\hbox\bgroup
       \ignorespaces}
-\gdef\endpicture{%
+\def\endpicture{%
   \egroup\hss\egroup
     \ht\@picbox\@picht\dp\@picbox\z@
     \mbox{\box\@picbox}}
-\long\gdef\put(#1,#2)#3{%
+\long\def\put(#1,#2)#3{%
   \@killglue\raise#2\unitlength
   \hb@xt@\z@{\kern#1\unitlength #3\hss}%
   \ignorespaces}
-\gdef\multiput(#1,#2)#3{%
+\def\multiput(#1,#2)#3{%
   \@xdim #1\unitlength
   \@ydim #2\unitlength
    \@multiput(}
-\long\gdef\@multiput(#1,#2)#3#4{%
+\long\def\@multiput(#1,#2)#3#4{%
   \@killglue\@multicnt #3\relax
   \@whilenum \@multicnt >\z@\do
     {\raise\@ydim\hb@xt@\z@{\kern\@xdim #4\hss}%
      \advance\@multicnt\m@ne
      \advance\@xdim#1\unitlength\advance\@ydim#2\unitlength}%
   \ignorespaces}
-\gdef\@killglue{\unskip\@whiledim \lastskip >\z@\do{\unskip}}
-\gdef\thinlines{\let\@linefnt\tenln \let\@circlefnt\tencirc
+\def\@killglue{\unskip\@whiledim \lastskip >\z@\do{\unskip}}
+\DeclareRobustCommand\thinlines{\let\@linefnt\tenln \let\@circlefnt\tencirc
   \@wholewidth\fontdimen8\tenln \@halfwidth .5\@wholewidth}
-\gdef\thicklines{\let\@linefnt\tenlnw \let\@circlefnt\tencircw
+\DeclareRobustCommand\thicklines{\let\@linefnt\tenlnw \let\@circlefnt\tencircw
   \@wholewidth\fontdimen8\tenlnw \@halfwidth .5\@wholewidth}
-\gdef\linethickness#1{\@wholewidth #1\relax \@halfwidth .5\@wholewidth}
-\gdef\shortstack{\@ifnextchar[\@shortstack{\@shortstack[c]}}
-\gdef\@shortstack[#1]{%
+\DeclareRobustCommand\linethickness[1]
+   {\@wholewidth #1\relax \@halfwidth .5\@wholewidth}
+\def\shortstack{\@ifnextchar[\@shortstack{\@shortstack[c]}}
+\def\@shortstack[#1]{%
   \leavevmode
   \vbox\bgroup
     \baselineskip-\p@\lineskip 3\p@
@@ -5626,19 +5707,19 @@ Type  H <return>  for immediate help.}%
     \expandafter\let\csname mb@#1\endcsname\relax
     \let\\\@stackcr
     \@ishortstack}
-\gdef\@ishortstack#1{\ialign{\mb@l {##}\unskip\mb@r\cr #1\crcr}\egroup}
-\gdef\@stackcr{\@ifstar\@ixstackcr\@ixstackcr}
-\gdef\@ixstackcr{\@ifnextchar[\@istackcr{\cr\ignorespaces}}
-\gdef\@istackcr[#1]{\cr\noalign{\vskip #1}\ignorespaces}
+\def\@ishortstack#1{\ialign{\mb@l {##}\unskip\mb@r\cr #1\crcr}\egroup}
+\def\@stackcr{\@ifstar\@ixstackcr\@ixstackcr}
+\def\@ixstackcr{\@ifnextchar[\@istackcr{\cr\ignorespaces}}
+\def\@istackcr[#1]{\cr\noalign{\vskip #1}\ignorespaces}
 \newif\if@negarg
-\gdef\line(#1,#2)#3{\@xarg #1\relax \@yarg #2\relax
+\def\line(#1,#2)#3{\@xarg #1\relax \@yarg #2\relax
   \@linelen #3\unitlength
   \ifdim\@linelen<\z@\@badlinearg\else
     \ifnum\@xarg =\z@ \@vline
       \else \ifnum\@yarg =\z@ \@hline \else \@sline\fi
     \fi
   \fi}
-\gdef\@sline{%
+\def\@sline{%
   \ifnum\@xarg<\z@ \@negargtrue \@xarg -\@xarg \@yyarg -\@yarg
   \else \@negargfalse \@yyarg \@yarg \fi
 \ifnum \@yyarg >\z@ \@tempcnta\@yyarg \else \@tempcnta -\@yyarg \fi
@@ -5680,14 +5761,14 @@ Type  H <return>  for immediate help.}%
      \@picture@warn
    \fi
    \else\@upordown\@clnht\copy\@linechar\fi}
-\gdef\@hline{\ifnum \@xarg <\z@ \hskip -\@linelen \fi
+\def\@hline{\ifnum \@xarg <\z@ \hskip -\@linelen \fi
 \vrule \@height \@halfwidth \@depth \@halfwidth \@width \@linelen
 \ifnum \@xarg <\z@ \hskip -\@linelen \fi}
-\gdef\@getlinechar(#1,#2){\@tempcnta#1\relax\multiply\@tempcnta 8%
+\def\@getlinechar(#1,#2){\@tempcnta#1\relax\multiply\@tempcnta 8%
   \advance\@tempcnta -9\ifnum #2>\z@ \advance\@tempcnta #2\relax\else
   \advance\@tempcnta -#2\relax\advance\@tempcnta 64 \fi
   \char\@tempcnta}
-\gdef\vector(#1,#2)#3{\@xarg #1\relax \@yarg #2\relax
+\def\vector(#1,#2)#3{\@xarg #1\relax \@yarg #2\relax
   \@tempcnta \ifnum\@xarg<\z@ -\@xarg\else\@xarg\fi
   \ifnum\@tempcnta<5\relax
   \@linelen #3\unitlength
@@ -5697,25 +5778,25 @@ Type  H <return>  for immediate help.}%
     \fi
   \fi
   \else\@badlinearg\fi}
-\gdef\@hvector{\@hline\hb@xt@\z@{\@linefnt
+\def\@hvector{\@hline\hb@xt@\z@{\@linefnt
  \ifnum \@xarg <\z@ \@getlarrow(1,0)\hss\else
     \hss\@getrarrow(1,0)\fi}}
-\gdef\@vvector{\ifnum \@yarg <\z@ \@downvector \else \@upvector \fi}
-\gdef\@svector{\@sline
+\def\@vvector{\ifnum \@yarg <\z@ \@downvector \else \@upvector \fi}
+\def\@svector{\@sline
   \@tempcnta\@yarg \ifnum\@tempcnta <\z@ \@tempcnta -\@tempcnta\fi
   \ifnum\@tempcnta <5%
     \hskip -\wd\@linechar
     \@upordown\@clnht \hbox{\@linefnt  \if@negarg
     \@getlarrow(\@xarg,\@yyarg)\else \@getrarrow(\@xarg,\@yyarg)\fi}%
   \else\@badlinearg\fi}
-\gdef\@getlarrow(#1,#2){\ifnum #2=\z@ \@tempcnta 27 % '33
+\def\@getlarrow(#1,#2){\ifnum #2=\z@ \@tempcnta 27 % '33
   \else
   \@tempcnta #1\relax\multiply\@tempcnta \sixt@@n
   \advance\@tempcnta -9 \@tempcntb #2\relax\multiply\@tempcntb \tw@
   \ifnum \@tempcntb >\z@ \advance\@tempcnta \@tempcntb
   \else\advance\@tempcnta -\@tempcntb\advance\@tempcnta 64
   \fi\fi\char\@tempcnta}
-\gdef\@getrarrow(#1,#2){\@tempcntb #2\relax
+\def\@getrarrow(#1,#2){\@tempcntb #2\relax
 \ifnum\@tempcntb <\z@ \@tempcntb -\@tempcntb\relax\fi
 \ifcase \@tempcntb\relax \@tempcnta 45  % '55
 \or
@@ -5729,19 +5810,19 @@ Type  H <return>  for immediate help.}%
 \@tempcnta #1\relax\multiply\@tempcnta
 \sixt@@n \advance\@tempcnta 7 \fi\ifnum #2<\z@ \advance\@tempcnta 64 \fi
 \char\@tempcnta}
-\gdef\@vline{\ifnum \@yarg <\z@ \@downline \else \@upline\fi}
-\gdef\@upline{%
+\def\@vline{\ifnum \@yarg <\z@ \@downline \else \@upline\fi}
+\def\@upline{%
   \hb@xt@\z@{\hskip -\@halfwidth \vrule \@width \@wholewidth
    \@height \@linelen \@depth \z@\hss}}
-\gdef\@downline{%
+\def\@downline{%
   \hb@xt@\z@{\hskip -\@halfwidth \vrule \@width \@wholewidth
    \@height \z@ \@depth \@linelen \hss}}
-\gdef\@upvector{\@upline\setbox\@tempboxa\hbox{\@linefnt\char 54}% '66
+\def\@upvector{\@upline\setbox\@tempboxa\hbox{\@linefnt\char 54}% '66
   \raise \@linelen \hb@xt@\z@{\lower \ht\@tempboxa\box\@tempboxa\hss}}
-\gdef\@downvector{\@downline\lower \@linelen
+\def\@downvector{\@downline\lower \@linelen
       \hb@xt@\z@{\@linefnt\char 63  % '77
       \hss}}
-\gdef\dashbox#1(#2,#3){\leavevmode\hb@xt@\z@{\baselineskip \z@skip
+\def\dashbox#1(#2,#3){\leavevmode\hb@xt@\z@{\baselineskip \z@skip
 \lineskip \z@skip
 \@dashdim #2\unitlength
 \@dashcnt \@dashdim \advance\@dashcnt 200
@@ -5797,7 +5878,7 @@ Type  H <return>  for immediate help.}%
 \newdimen\@ovdy
 \newdimen\@ovro
 \newdimen\@ovri
-\gdef\@getcirc#1{\@tempdima #1\relax \advance\@tempdima 2\p@
+\def\@getcirc#1{\@tempdima #1\relax \advance\@tempdima 2\p@
   \@tempcnta\@tempdima
   \@tempdima 4\p@ \divide\@tempcnta\@tempdima
   \ifnum \@tempcnta >10\relax
@@ -5812,11 +5893,11 @@ Type  H <return>  for immediate help.}%
 \def\@picture@warn{\@latex@warning{%
      \string\oval, \string\circle, or \string\line\space
      size unavailable}}
-\gdef\@put#1#2#3{\raise #2\hb@xt@\z@{\hskip #1#3\hss}}
-\gdef\oval(#1,#2){\@ifnextchar[{\@oval(#1,#2)}{\@oval(#1,#2)[]}}
+\def\@put#1#2#3{\raise #2\hb@xt@\z@{\hskip #1#3\hss}}
+\def\oval(#1,#2){\@ifnextchar[{\@oval(#1,#2)}{\@oval(#1,#2)[]}}
 \newif\if@ovvline \@ovvlinetrue
 \newif\if@ovhline \@ovhlinetrue
-\gdef\@oval(#1,#2)[#3]{\begingroup\boxmaxdepth \maxdimen
+\def\@oval(#1,#2)[#3]{\begingroup\boxmaxdepth \maxdimen
   \@ovttrue \@ovbtrue \@ovltrue \@ovrtrue
   \@ovvlinefalse \@ovhlinefalse
   \@tfor\reserved@a :=#3\do{\csname @ov\reserved@a false\endcsname}%
@@ -5839,7 +5920,7 @@ Type  H <return>  for immediate help.}%
   \advance\@ovdy\@ovro \ht\@tempboxa\z@ \dp\@tempboxa\z@
   \@put{-\@ovdx}{-\@ovdy}{\box\@tempboxa}%
   \endgroup}
-\gdef\@ovvert#1#2{\vbox to\@ovyy{%
+\def\@ovvert#1#2{\vbox to\@ovyy{%
     \if@ovb \@tempcntb \@tempcnta \advance \@tempcntb #1\relax
       \kern -\@ovro \hbox{\char \@tempcntb}\nointerlineskip
     \else \kern \@ovri \kern \@ovdy \fi
@@ -5848,14 +5929,14 @@ Type  H <return>  for immediate help.}%
     \if@ovt \@tempcntb \@tempcnta \advance \@tempcntb #2\relax
       \hbox{\char \@tempcntb}%
     \else \kern \@ovdy \kern \@ovro \fi}}
-\gdef\@ovhorz{\hb@xt@\@ovxx{\kern \@ovro
+\def\@ovhorz{\hb@xt@\@ovxx{\kern \@ovro
     \if@ovr \else \kern \@ovdx \fi
     \if@ovhline \leaders \hrule \@height \@wholewidth \fi
     \hfil
     \if@ovl \else \kern \@ovdx \fi
     \kern \@ovri}}
-\gdef\circle{\@inmatherr\circle\@ifstar\@dot\@circle}
-\gdef\@circle#1{%
+\def\circle{\@inmatherr\circle\@ifstar\@dot\@circle}
+\def\@circle#1{%
   \begingroup \boxmaxdepth \maxdimen \@tempdimb #1\unitlength
    \ifdim \@tempdimb >15.5\p@ \@getcirc\@tempdimb
       \@ovro\ht\@tempboxa
@@ -5867,8 +5948,8 @@ Type  H <return>  for immediate help.}%
         \box\@tempboxa}\ht\@tempboxa\z@ \dp\@tempboxa\z@
       \@put{-\@ovro}{-\@ovro}{\box\@tempboxa}%
    \else  \@circ\@tempdimb{96}\fi\endgroup}
-\gdef\@dot#1{\@tempdimb #1\unitlength \@circ\@tempdimb{112}}
-\gdef\@circ#1#2{\@tempdima #1\relax \advance\@tempdima .5\p@
+\def\@dot#1{\@tempdimb #1\unitlength \@circ\@tempdimb{112}}
+\def\@circ#1#2{\@tempdima #1\relax \advance\@tempdima .5\p@
    \@tempcnta\@tempdima \@tempdima \p@
    \divide\@tempcnta\@tempdima
    \ifnum\@tempcnta >15\relax \@tempcnta 15\relax \fi
@@ -5892,10 +5973,10 @@ Type  H <return>  for immediate help.}%
 \let\@circlefnt\tencirc
 \@wholewidth\fontdimen8\tenln
 \@halfwidth .5\@wholewidth
-\gdef\qbeziermax{500}
+\def\qbeziermax{500}
 \newcommand\qbezier[2][0]{\bezier{#1}#2}
-\gdef\bezier#1)#2(#3)#4({\@bezier#1)(#3)(}
-\gdef\@bezier#1(#2,#3)(#4,#5)(#6,#7){%
+\def\bezier#1)#2(#3)#4({\@bezier#1)(#3)(}
+\def\@bezier#1(#2,#3)(#4,#5)(#6,#7){%
   \ifnum #1=\z@
       \@ovxx #4\unitlength
         \advance\@ovxx -#2\unitlength
@@ -5945,6 +6026,18 @@ Type  H <return>  for immediate help.}%
             \hb@xt@\z@{\kern\@xdim
                         \unhcopy\@tempboxa\hss}%
          \advance\count@\@ne}}}
+\MakeRobust\bezier
+\MakeRobust\circle
+\MakeRobust\dashbox
+\MakeRobust\line
+\MakeRobust\linethickness
+\MakeRobust\multiput
+\MakeRobust\oval
+\MakeRobust\put
+\MakeRobust\qbezier
+\MakeRobust\shortstack
+\MakeRobust\thinlines
+\MakeRobust\vector
 %%% From File: ltthm.dtx
 \def\newtheorem#1{%
   \@ifnextchar[{\@othm{#1}}{\@nthm{#1}}}
@@ -5986,21 +6079,21 @@ Type  H <return>  for immediate help.}%
 \def\@endtheorem{\endtrivlist}
 %%% From File: ltsect.dtx
 \message{title,}
-\def\title#1{\gdef\@title{#1}}
-\def\@title{\@latex@error{No \noexpand\title given}\@ehc}
-\def\author#1{\gdef\@author{#1}}
-\def\@author{\@latex@warning@no@line{No \noexpand\author given}}
-\def\date#1{\gdef\@date{#1}}
-\gdef\@date{\today}
-\def\thanks#1{\footnotemark
+\DeclareRobustCommand\title[1]{\gdef\@title{#1}}
+\DeclareRobustCommand\author[1]{\gdef\@author{#1}}
+\DeclareRobustCommand\date[1]{\gdef\@date{#1}}
+\DeclareRobustCommand\thanks[1]{\footnotemark
     \protected@xdef\@thanks{\@thanks
         \protect\footnotetext[\the\c@footnote]{#1}}%
 }
-\let\@thanks\@empty
-\def\and{%                  % \begin{tabular}
+\DeclareRobustCommand\and{%   % \begin{tabular}
   \end{tabular}%
   \hskip 1em \@plus.17fil%
-  \begin{tabular}[t]{c}}%   % \end{tabular}
+  \begin{tabular}[t]{c}}%     % \end{tabular}
+\def\@title{\@latex@error{No \noexpand\title given}\@ehc}
+\def\@author{\@latex@warning@no@line{No \noexpand\author given}}
+\gdef\@date{\today}
+\let\@thanks\@empty
 \message{sectioning,}
 \newcount\@secpenalty
 \@secpenalty = -300
@@ -6572,7 +6665,7 @@ Type  H <return>  for immediate help.}%
      \hfil}\let\@evenhead\@empty\let\@evenfoot\@oddfoot}
 \let\@leftmark\@firstoftwo
 \let\@rightmark\@secondoftwo
-\def\markboth#1#2{%
+\DeclareRobustCommand\markboth[2]{%
   \begingroup
     \let\label\relax \let\index\relax \let\glossary\relax
     \unrestored@protected@xdef\@themark {{#1}{#2}}%
@@ -6580,7 +6673,7 @@ Type  H <return>  for immediate help.}%
     \mark{\the\@temptokena}%
   \endgroup
   \if@nobreak\ifvmode\nobreak\fi\fi}
-\def\markright#1{%
+\DeclareRobustCommand\markright[1]{%
   \begingroup
     \let\label\relax \let\index\relax \let\glossary\relax
     \expandafter\@markright\@themark {#1}%
@@ -6593,18 +6686,18 @@ Type  H <return>  for immediate help.}%
 \def\leftmark{\expandafter\@leftmark\botmark\@empty\@empty}
 \def\rightmark{\expandafter\@rightmark\firstmark\@empty\@empty}
 \def\@themark{{}{}}
-\def\raggedbottom{%
+\DeclareRobustCommand\raggedbottom{%
   \def\@textbottom{\vskip \z@ \@plus.0001fil}\let\@texttop\relax}
-\def\flushbottom{%
+\DeclareRobustCommand\flushbottom{%
   \let\@textbottom\relax \let\@texttop\relax}
-\def\sloppy{%
+\DeclareRobustCommand\sloppy{%
   \tolerance 9999%
   \emergencystretch 3em%
   \hfuzz .5\p@
   \vfuzz\hfuzz}
 \def\sloppypar{\par\sloppy}
 \def\endsloppypar{\par}
-\def\fussy{%
+\DeclareRobustCommand\fussy{%
   \emergencystretch\z@
   \tolerance 200%
   \hfuzz .1\p@
@@ -6675,7 +6768,7 @@ Type  H <return>  for immediate help.}%
 \newdimen\marginparsep
 \newdimen\marginparpush
 \newbox\@begindvibox
-\def \AtBeginDvi #1{%
+\DeclareRobustCommand \AtBeginDvi [1]{%
   \global \setbox \@begindvibox
     \vbox{\unvbox \@begindvibox #1}%
 }
@@ -8067,8 +8160,8 @@ Type  H <return>  for immediate help.}%
 \let\AtEndOfClass\AtEndOfPackage
 \@onlypreamble\AtEndOfPackage
 \@onlypreamble\AtEndOfClass
-\def\AtBeginDocument{\g@addto@macro\@begindocumenthook}
-\def\AtEndDocument{\g@addto@macro\@enddocumenthook}
+\DeclareRobustCommand\AtBeginDocument{\g@addto@macro\@begindocumenthook}
+\DeclareRobustCommand\AtEndDocument{\g@addto@macro\@enddocumenthook}
 \@onlypreamble\AtBeginDocument
 \def\@cls@pkg{%
   \ifx\@currext\@clsextension
@@ -8113,6 +8206,31 @@ Type  H <return>  for immediate help.}%
     {The document may only declare one class.}\@gobble}
 \@onlypreamble\@twoclasseserror
 \def\two@digits#1{\ifnum#1<10 0\fi\number#1}
+
+\def\filecontents{\@tempswatrue\@fileswtrue
+  \@ifnextchar[\filec@ntents@opt\filec@ntents
+}
+\@namedef{filecontents*}{\@tempswafalse\@fileswtrue
+  \@ifnextchar[\filec@ntents@opt\filec@ntents
+}
+\def\filec@ntents@opt[#1]{%
+  \@for\@tempa:=#1\do{%
+    \ifcsname filec@ntents@\@tempa\endcsname
+      \csname filec@ntents@\@tempa\endcsname
+    \else
+    \@latex@error{Unknown filecontents option #1}%
+       {Valid options are force (or overwrite), nosearch, noheader}%
+    \fi}%
+  \filec@ntents
+}
+\let\filec@ntents@force\@fileswfalse
+\let\filec@ntents@overwrite\@fileswfalse  % alternative name
+\let\filec@ntents@noheader\@tempswafalse
+\def\filec@ntents@nosearch{%
+  \let\filec@ntents@checkdir\@currdir
+  \def\filec@ntents@where{in current directory}}
+\let\filec@ntents@checkdir\@empty
+\def\filec@ntents@where{exists on the system}
 \begingroup%
 \@tempcnta=1
 \loop
@@ -8124,12 +8242,10 @@ Type  H <return>  for immediate help.}%
 \catcode`\^^M\active%
 \catcode`\^^L\active\let^^L\relax%
 \catcode`\^^I\active%
-\gdef\filecontents{\@tempswatrue\filec@ntents}%
-\gdef\filecontents*{\@tempswafalse\filec@ntents}%
 \gdef\filec@ntents#1{%
-   \set@curr@file{#1}%
-   \edef\q@curr@file{\expandafter\quote@name\expandafter{\@curr@file}}%
-   \openin\@inputcheck\q@curr@file \space %
+  \set@curr@file{\filec@ntents@checkdir#1}%
+  \edef\q@curr@file{\expandafter\quote@name\expandafter{\@curr@file}}%
+  \openin\@inputcheck\q@curr@file \space %
   \ifeof\@inputcheck%
     \@latex@warning@no@line%
         {Writing file `\@currdir\@curr@file'}%
@@ -8137,13 +8253,38 @@ Type  H <return>  for immediate help.}%
     \ch@ck7\reserved@c\write%
     \immediate\openout\reserved@c\q@curr@file\relax%
   \else%
-    \closein\@inputcheck%
-    \@latex@warning@no@line%
-            {File `\@curr@file' already exists on the system.\MessageBreak%
+    \if@filesw%
+      \@latex@warning@no@line%
+          {File `\@curr@file' already \filec@ntents@where.\MessageBreak%
              Not generating it from this source}%
-    \let\write\@gobbletwo%
-    \let\closeout\@gobble%
+      \let\write\@gobbletwo%
+      \let\closeout\@gobble%
+    \else%
+      \edef\reserved@a{#1}%
+      \edef\reserved@a{\detokenize\expandafter{\reserved@a}}%
+      \edef\reserved@b{\detokenize\expandafter{\jobname}}%
+      \ifx\reserved@a\reserved@b%
+        \@fileswtrue%
+      \else%
+        \edef\reserved@b{\reserved@b\detokenize{.tex}}%
+        \ifx\reserved@a\reserved@b
+          \@fileswtrue%
+        \fi%
+      \fi%
+      \chardef\reserved@c15 %
+      \ch@ck7\reserved@c\write%
+      \if@filesw%  % Foul ... trying to overwrite \jobname!
+      \@latex@error{Trying to overwrite `\jobname.tex'}{You can't %
+        write to the file you a reading from!\MessageBreak%
+        Data is written to screen instead.}%
+      \else%
+        \@latex@warning@no@line%
+           {Writing or overwriting file `\@currdir\@curr@file'}%
+        \immediate\openout\reserved@c#1\relax%
+      \fi%
+    \fi%
   \fi%
+  \closein\@inputcheck%
   \if@tempswa%
     \immediate\write\reserved@c{%
       \@percentchar\@percentchar\space%
@@ -8208,12 +8349,7 @@ Type  H <return>  for immediate help.}%
   \T\I{Tab}{Spac}|
   \immediate\write\@unused{}}
 \global\let\endfilecontents*\endfilecontents
-\@onlypreamble\filecontents
-\@onlypreamble\endfilecontents
-\@onlypreamble\filecontents*
-\@onlypreamble\endfilecontents*
 \endgroup
-\@onlypreamble\filec@ntents
 \let\pkgcls@debug\@gobble
 \def\requestedLaTeXdate{0}
 \ifx\pkgcls@targetdate\@undefined
@@ -8399,7 +8535,7 @@ Type  H <return>  for immediate help.}%
   \fi
 }
 
-\long\def\IfTargetDateBefore#1{%
+\DeclareRobustCommand\IfTargetDateBefore[1]{%
   \ifnum\pkgcls@innerdate <%
         \expandafter\@parse@version\expandafter0#1//00\@nil
     \typeout{Exclude code introduced on #1}%
diff --git a/Master/texmf-dist/tex/latex-dev/base/latex209.def b/Master/texmf-dist/tex/latex-dev/base/latex209.def
index 7398e12a3dc..593d69f59fd 100644
--- a/Master/texmf-dist/tex/latex-dev/base/latex209.def
+++ b/Master/texmf-dist/tex/latex-dev/base/latex209.def
@@ -15,7 +15,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -28,7 +28,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/latexrelease.sty b/Master/texmf-dist/tex/latex-dev/base/latexrelease.sty
index 9b43a0bf02a..4a5ce2a8c48 100644
--- a/Master/texmf-dist/tex/latex-dev/base/latexrelease.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/latexrelease.sty
@@ -53,7 +53,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2018
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -66,7 +66,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
@@ -272,7 +272,7 @@
   \fi
 }
 
-\long\def\IfTargetDateBefore#1{%
+\DeclareRobustCommand\IfTargetDateBefore[1]{%
   \ifnum\pkgcls@innerdate <%
         \expandafter\@parse@version\expandafter0#1//00\@nil
     \typeout{Exclude code introduced on #1}%
@@ -289,7 +289,8 @@
 \@includeinreleasefalse
 \def\IncludeInRelease#1{%
  \if@includeinrelease
-  \PackageError{latexrelease}{mis-matched IncludeInRelease}{}%
+   \PackageError{latexrelease}{mis-matched IncludeInRelease}%
+                {There is an \string\EndIncludeRelease\space missing}%
   \@includeinreleasefalse
   \fi
   \kernel@ifnextchar[%
@@ -326,7 +327,7 @@
 \long\def\@check@IncludeInRelease#1\IncludeInRelease
                                    #2#3\@end@check@IncludeInRelease{%
   \ifx\@check@IncludeInRelease#2\else
-    \PackageError{latexrelease}{skipped IncludeInRelease}{}%
+    \PackageError{latexrelease}{skipped IncludeInRelease for tag \string#2}{}%
   \fi}
 \ProvidesPackage{latexrelease}
           [2018/05/08 v1.0k LaTeX release emulation and tests
@@ -419,6 +420,32 @@ of this package available from CTAN}
 \EndIncludeInRelease
 \fi
 %%% From File: ltdefns.dtx
+\IncludeInRelease{2019/10/01}{\MakeRobust}{\MakeRobust}%
+\def\MakeRobust#1{%
+  \@ifundefined{\expandafter\@gobble\string#1}{%
+    \@latex@error{The control sequence `\string#1' is undefined!%
+      \MessageBreak There is nothing here to make robust}%
+    \@eha
+  }%
+  {%
+    \@ifundefined{\expandafter\@gobble\string#1\space}%
+    {%
+      \global\expandafter\let\csname
+      \expandafter\@gobble\string#1\space\endcsname=#1%
+      \edef\reserved@a{\string#1}%
+      \def\reserved@b{#1}%
+      \edef\reserved@b{\expandafter\strip@prefix\meaning\reserved@b}%
+      \xdef#1{%
+        \ifx\reserved@a\reserved@b
+          \noexpand\x@protect\noexpand#1%
+        \fi
+        \noexpand\protect\expandafter\noexpand
+        \csname\expandafter\@gobble\string#1\space\endcsname}%
+    }%
+    {\@latex@info{The control sequence `\string#1' is already robust}}%
+   }%
+}%
+\EndIncludeInRelease
 \IncludeInRelease{2015/01/01}{\MakeRobust}{\MakeRobust}%
 \def\MakeRobust#1{%
   \@ifundefined{\expandafter\@gobble\string#1}{%
@@ -448,6 +475,19 @@ of this package available from CTAN}
 \IncludeInRelease{0000/00/00}{\MakeRobust}{\MakeRobust}%
 \let\MakeRobust\@undefined
 \EndIncludeInRelease
+\IncludeInRelease{0000/00/00}%
+                 {\kernel@make@fragile}{Undo robustness}%
+\def\kernel@make@fragile#1{%
+  \@ifundefined{\expandafter\@gobble\string#1\space}%
+     {}%
+     {%
+      \global\expandafter\let\expandafter #1\csname
+      \expandafter\@gobble\string#1\space\endcsname
+      \global\expandafter\let\csname
+      \expandafter\@gobble\string#1\space\endcsname\@undefined
+     }%
+}
+\EndIncludeInRelease
 \IncludeInRelease{2018-04-01}{\@ifundefined}
 {Leave commands undefined in \@ifundefined}%
 \def\@ifundefined#1{%
@@ -501,6 +541,46 @@ of this package available from CTAN}
 \def\-{\discretionary{-}{}{}}
 \let\@dischyph=\-
 \EndIncludeInRelease
+\IncludeInRelease{2019/10/01}%
+                 {\allowbreak}{Make various commands robust}%
+\MakeRobust\allowbreak
+\MakeRobust\bigbreak
+\MakeRobust\break
+\MakeRobust\dotfill
+\MakeRobust\frenchspacing
+\MakeRobust\goodbreak
+\MakeRobust\hrulefill
+\MakeRobust\medbreak
+\MakeRobust\nobreak
+\MakeRobust\nonfrenchspacing
+\MakeRobust\obeylines
+\MakeRobust\obeyspaces
+\MakeRobust\slash
+\MakeRobust\smallbreak
+\MakeRobust\strut
+\MakeRobust\underbar
+\EndIncludeInRelease
+\IncludeInRelease{0000/00/00}%
+                 {\allowbreak}{Make various commands robust}%
+
+\kernel@make@fragile\allowbreak
+\kernel@make@fragile\bigbreak
+\kernel@make@fragile\break
+\kernel@make@fragile\dotfill
+\kernel@make@fragile\frenchspacing
+\kernel@make@fragile\goodbreak
+\kernel@make@fragile\hrulefill
+\kernel@make@fragile\medbreak
+\kernel@make@fragile\nobreak
+\kernel@make@fragile\nonfrenchspacing
+\kernel@make@fragile\obeylines
+\kernel@make@fragile\obeyspaces
+\kernel@make@fragile\slash
+\kernel@make@fragile\smallbreak
+\kernel@make@fragile\strut
+\kernel@make@fragile\underbar
+
+\EndIncludeInRelease
 %%% From File: ltalloc.dtx
 %%% From File: ltcntrl.dtx
 %%% From File: lterror.dtx
@@ -626,7 +706,50 @@ of this package available from CTAN}
 \expandafter\let\csname raisebox \endcsname\@undefined
 \EndIncludeInRelease
 %%% From File: lttab.dtx
+\IncludeInRelease{2019/10/01}%
+                 {\pushtabs}{Make commands robust}%
+\DeclareRobustCommand\pushtabs{%
+  \@stopfield\@addfield\global\advance\@tabpush \@ne \begingroup
+       \@contfield}
+\DeclareRobustCommand\poptabs{\@stopfield\@addfield
+  \ifnum \@tabpush >\z@
+    \endgroup
+    \global\advance\@tabpush \m@ne
+    \ifnum \@curtab >\@hightab
+      \global \@curtab \@hightab
+      \@badtab
+    \fi
+  \else
+    \@badpoptabs
+  \fi
+  \@contfield}
+\DeclareRobustCommand\kill{\@stopfield\@startline\ignorespaces}
+\EndIncludeInRelease
+\IncludeInRelease{0000/00/00}%
+                 {\pushtabs}{Make commands robust}%
+
+\kernel@make@fragile\pushtabs
+\kernel@make@fragile\poptabs
+\kernel@make@fragile\kill
+
+\EndIncludeInRelease
 %%% From File: ltmath.dtx
+\IncludeInRelease{2019/10/01}%
+                 {\vphantom}{Make commands robust}%
+\DeclareRobustCommand\vphantom{\v@true\h@false\ph@nt}
+\DeclareRobustCommand\hphantom{\v@false\h@true\ph@nt}
+\DeclareRobustCommand\phantom{\v@true\h@true\ph@nt}
+\DeclareRobustCommand\mathstrut{\vphantom(}
+\EndIncludeInRelease
+\IncludeInRelease{0000/00/00}%
+                 {\vphantom}{Make commands robust}%
+
+\kernel@make@fragile\vphantom
+\kernel@make@fragile\hphantom
+\kernel@make@fragile\phantom
+\kernel@make@fragile\mathstrut
+
+\EndIncludeInRelease
 \IncludeInRelease{2018/12/01}%
                  {\finph@nt}{Start LR-mode}%
 \def\finph@nt{%
@@ -650,6 +773,24 @@ of this package available from CTAN}
                  {\finsm@sh}{Start LR-mode}%
 \def\finsm@sh{\ht\z@\z@ \dp\z@\z@ \box\z@}
 \EndIncludeInRelease
+\IncludeInRelease{2019/10/01}%
+                 {\cases}{Make commands robust}%
+\DeclareRobustCommand\cases[1]{\left\{\,\vcenter{\normalbaselines\m@th
+    \ialign{$##\hfil$&\quad{##}\hfil\crcr#1\crcr}}\right.}
+\DeclareRobustCommand\matrix[1]{\null\,\vcenter{\normalbaselines\m@th
+    \ialign{\hfil$##$\hfil&&\quad\hfil$##$\hfil\crcr
+      \mathstrut\crcr\noalign{\kern-\baselineskip}
+      #1\crcr\mathstrut\crcr\noalign{\kern-\baselineskip}}}\,}
+\DeclareRobustCommand\pmatrix[1]{\left(\matrix{#1}\right)}
+\EndIncludeInRelease
+\IncludeInRelease{0000/00/00}%
+                 {\cases}{Make commands robust}%
+
+\kernel@make@fragile\cases
+\kernel@make@fragile\matrix
+\kernel@make@fragile\pmatrix
+
+\EndIncludeInRelease
 \IncludeInRelease{2015/01/01}{\(}{Make \( robust}%
 \DeclareRobustCommand\({%
   \relax\ifmmode\@badmath\else$\fi}%
@@ -722,7 +863,7 @@ of this package available from CTAN}
                  {Avoid almost zero length leaders}%
 \newif\if@ovvline \@ovvlinetrue
 \newif\if@ovhline \@ovhlinetrue
-\gdef\@oval(#1,#2)[#3]{\begingroup\boxmaxdepth \maxdimen
+\def\@oval(#1,#2)[#3]{\begingroup\boxmaxdepth \maxdimen
   \@ovttrue \@ovbtrue \@ovltrue \@ovrtrue
   \@ovvlinefalse \@ovhlinefalse
   \@tfor\reserved@a :=#3\do{\csname @ov\reserved@a false\endcsname}%
@@ -745,7 +886,7 @@ of this package available from CTAN}
   \advance\@ovdy\@ovro \ht\@tempboxa\z@ \dp\@tempboxa\z@
   \@put{-\@ovdx}{-\@ovdy}{\box\@tempboxa}%
   \endgroup}
-\gdef\@ovvert#1#2{\vbox to\@ovyy{%
+\def\@ovvert#1#2{\vbox to\@ovyy{%
     \if@ovb \@tempcntb \@tempcnta \advance \@tempcntb #1\relax
       \kern -\@ovro \hbox{\char \@tempcntb}\nointerlineskip
     \else \kern \@ovri \kern \@ovdy \fi
@@ -754,7 +895,7 @@ of this package available from CTAN}
     \if@ovt \@tempcntb \@tempcnta \advance \@tempcntb #2\relax
       \hbox{\char \@tempcntb}%
     \else \kern \@ovdy \kern \@ovro \fi}}
-\gdef\@ovhorz{\hb@xt@\@ovxx{\kern \@ovro
+\def\@ovhorz{\hb@xt@\@ovxx{\kern \@ovro
     \if@ovr \else \kern \@ovdx \fi
     \if@ovhline \leaders \hrule \@height \@wholewidth \fi
     \hfil
@@ -766,7 +907,7 @@ of this package available from CTAN}
                  {Avoid almost zero length leaders}%
 \let\if@ovvline\@undefined
 \let\if@ovhline\@undefined
-\gdef\@oval(#1,#2)[#3]{\begingroup\boxmaxdepth \maxdimen
+\def\@oval(#1,#2)[#3]{\begingroup\boxmaxdepth \maxdimen
   \@ovttrue \@ovbtrue \@ovltrue \@ovrtrue
   \@tfor\reserved@a :=#3\do
                 {\csname @ov\reserved@a false\endcsname}%
@@ -788,7 +929,7 @@ of this package available from CTAN}
   \advance\@ovdy\@ovro \ht\@tempboxa\z@ \dp\@tempboxa\z@
   \@put{-\@ovdx}{-\@ovdy}{\box\@tempboxa}%
   \endgroup}
-\gdef\@ovvert#1#2{\vbox to\@ovyy{%
+\def\@ovvert#1#2{\vbox to\@ovyy{%
     \if@ovb \@tempcntb \@tempcnta \advance \@tempcntb #1\relax
       \kern -\@ovro \hbox{\char \@tempcntb}\nointerlineskip
     \else \kern \@ovri \kern \@ovdy \fi
@@ -796,14 +937,70 @@ of this package available from CTAN}
     \if@ovt \@tempcntb \@tempcnta \advance \@tempcntb #2\relax
       \hbox{\char \@tempcntb}%
     \else \kern \@ovdy \kern \@ovro \fi}}
-\gdef\@ovhorz{\hb@xt@\@ovxx{\kern \@ovro
+\def\@ovhorz{\hb@xt@\@ovxx{\kern \@ovro
     \if@ovr \else \kern \@ovdx \fi
     \leaders \hrule \@height \@wholewidth \hfil
     \if@ovl \else \kern \@ovdx \fi
     \kern \@ovri}}
 \EndIncludeInRelease
+\IncludeInRelease{2019/10/01}%
+                 {\bezier}{Make commands robust}%
+\MakeRobust\bezier
+\MakeRobust\circle
+\MakeRobust\dashbox
+\MakeRobust\line
+\MakeRobust\linethickness
+\MakeRobust\multiput
+\MakeRobust\oval
+\MakeRobust\put
+\MakeRobust\qbezier
+\MakeRobust\shortstack
+\MakeRobust\thinlines
+\MakeRobust\vector
+\EndIncludeInRelease
+\IncludeInRelease{0000/00/00}%
+                 {\bezier}{Make commands robust}%
+
+\kernel@make@fragile\bezier
+\kernel@make@fragile\circle
+\kernel@make@fragile\dashbox
+\kernel@make@fragile\line
+\kernel@make@fragile\linethickness
+\kernel@make@fragile\multiput
+\kernel@make@fragile\oval
+\kernel@make@fragile\put
+\kernel@make@fragile\qbezier
+\kernel@make@fragile\shortstack
+\kernel@make@fragile\thinlines
+\kernel@make@fragile\vector
+
+\EndIncludeInRelease
 %%% From File: ltthm.dtx
 %%% From File: ltsect.dtx
+\IncludeInRelease{2019/10/01}%
+                 {\title}{Make commands robust}%
+\DeclareRobustCommand\title[1]{\gdef\@title{#1}}
+\DeclareRobustCommand\author[1]{\gdef\@author{#1}}
+\DeclareRobustCommand\date[1]{\gdef\@date{#1}}
+\DeclareRobustCommand\thanks[1]{\footnotemark
+    \protected@xdef\@thanks{\@thanks
+        \protect\footnotetext[\the\c@footnote]{#1}}%
+}
+\DeclareRobustCommand\and{%   % \begin{tabular}
+  \end{tabular}%
+  \hskip 1em \@plus.17fil%
+  \begin{tabular}[t]{c}}%     % \end{tabular}
+\EndIncludeInRelease
+\IncludeInRelease{0000/00/00}%
+                 {\title}{Make commands robust}%
+
+\kernel@make@fragile\title
+\kernel@make@fragile\author
+\kernel@make@fragile\date
+\kernel@make@fragile\thanks
+\kernel@make@fragile\and
+
+\EndIncludeInRelease
 \IncludeInRelease{2018/12/01}%
                  {\addcontentsline}{Mask line endings}%
 \def\addcontentsline#1#2#3{%
@@ -1010,7 +1207,7 @@ of this package available from CTAN}
 \def\quote@name#1{"\quote@@name#1\@gobble""}
 \def\quote@@name#1"{#1\quote@@name}
 \def\unquote@name#1{\quote@@name#1\@gobble"}
-\def\IfFileExists#1{%
+\DeclareRobustCommand\IfFileExists[1]{%
   \set@curr@file{#1}%
   \edef\q@curr@file{\expandafter\quote@name\expandafter{\@curr@file}}%
   \expandafter\IfFileExists@\expandafter{\q@curr@file}}
@@ -1057,7 +1254,7 @@ of this package available from CTAN}
 \EndIncludeInRelease
 \IncludeInRelease{2019/10/01}%
   {\InputIfFileExists}{Don't lose the file name}%
-\long\def \InputIfFileExists#1#2{%
+\DeclareRobustCommand \InputIfFileExists[2]{%
   \IfFileExists{#1}%
     {%
   \expandafter\@swaptwoargs\expandafter
@@ -1138,6 +1335,33 @@ of this package available from CTAN}
    \expandafter\def\csname\expandafter\string\csname
       #2\endcsname\string#1-\string#3\@empty\endcsname{#4}}
 \EndIncludeInRelease
+\IncludeInRelease{2019/10/01}%
+                 {\UseTextAccent}{Make commands robust}%
+\DeclareRobustCommand\UseTextAccent[3]{%
+  \hmode@start@before@group
+   {%
+    \let\hmode@start@before@group\@firstofone
+    \let\@curr@enc\cf@encoding
+    \@use@text@encoding{#1}%
+    #2{\@use@text@encoding\@curr@enc#3}%
+   }}
+\DeclareRobustCommand\UseTextSymbol[2]{%
+       \hmode@start@before@group
+       {%
+          \def\@wrong@font@char{\MessageBreak
+             for \noexpand\symbol`\string#2'}%
+          \@use@text@encoding{#1}%
+          #2%
+       }%
+    }
+\EndIncludeInRelease
+\IncludeInRelease{0000/00/00}%
+                 {\UseTextAccent}{Make commands robust}%
+
+\kernel@make@fragile\UseTextAccent
+\kernel@make@fragile\UseTextSymbol
+
+\EndIncludeInRelease
 \IncludeInRelease{2015/10/01}{\textcommabelow}{comma accent}%
 \DeclareTextCommandDefault\textcommabelow[1]
   {\hmode@bgroup\ooalign{\null#1\crcr\hidewidth\raise-.31ex
@@ -1517,6 +1741,32 @@ of this package available from CTAN}
 %%% From File: ltidxglo.dtx
 %%% From File: ltbibl.dtx
 %%% From File: ltpage.dtx
+\IncludeInRelease{2019/10/01}%
+                 {\markboth}{Make commands robust}%
+\DeclareRobustCommand\markboth[2]{%
+  \begingroup
+    \let\label\relax \let\index\relax \let\glossary\relax
+    \unrestored@protected@xdef\@themark {{#1}{#2}}%
+    \@temptokena \expandafter{\@themark}%
+    \mark{\the\@temptokena}%
+  \endgroup
+  \if@nobreak\ifvmode\nobreak\fi\fi}
+\DeclareRobustCommand\markright[1]{%
+  \begingroup
+    \let\label\relax \let\index\relax \let\glossary\relax
+    \expandafter\@markright\@themark {#1}%
+    \@temptokena \expandafter{\@themark}%
+    \mark{\the\@temptokena}%
+  \endgroup
+  \if@nobreak\ifvmode\nobreak\fi\fi}
+\EndIncludeInRelease
+\IncludeInRelease{0000/00/00}%
+                 {\markboth}{Make commands robust}%
+
+\kernel@make@fragile\markboth
+\kernel@make@fragile\markright
+
+\EndIncludeInRelease
 %%% From File: ltoutput.dtx
 \IncludeInRelease{2015/10/01}%
                  {\bx@ZZ}{Extended float list}%
@@ -2439,7 +2689,32 @@ of this package available from CTAN}
   \reserved@a}
 \EndIncludeInRelease
 \IncludeInRelease{2019/10/01}%
-                 {\filec@ntents}{Spaces in file names}%
+                 {\filec@ntents}{Spaces in file names + optional arg}%
+
+\def\filecontents{\@tempswatrue\@fileswtrue
+  \@ifnextchar[\filec@ntents@opt\filec@ntents
+}
+\@namedef{filecontents*}{\@tempswafalse\@fileswtrue
+  \@ifnextchar[\filec@ntents@opt\filec@ntents
+}
+\def\filec@ntents@opt[#1]{%
+  \@for\@tempa:=#1\do{%
+    \ifcsname filec@ntents@\@tempa\endcsname
+      \csname filec@ntents@\@tempa\endcsname
+    \else
+    \@latex@error{Unknown filecontents option #1}%
+       {Valid options are force (or overwrite), nosearch, noheader}%
+    \fi}%
+  \filec@ntents
+}
+\let\filec@ntents@force\@fileswfalse
+\let\filec@ntents@overwrite\@fileswfalse  % alternative name
+\let\filec@ntents@noheader\@tempswafalse
+\def\filec@ntents@nosearch{%
+  \let\filec@ntents@checkdir\@currdir
+  \def\filec@ntents@where{in current directory}}
+\let\filec@ntents@checkdir\@empty
+\def\filec@ntents@where{exists on the system}
 \begingroup%
 \@tempcnta=1
 \loop
@@ -2451,12 +2726,10 @@ of this package available from CTAN}
 \catcode`\^^M\active%
 \catcode`\^^L\active\let^^L\relax%
 \catcode`\^^I\active%
-\gdef\filecontents{\@tempswatrue\filec@ntents}%
-\gdef\filecontents*{\@tempswafalse\filec@ntents}%
 \gdef\filec@ntents#1{%
-   \set@curr@file{#1}%
-   \edef\q@curr@file{\expandafter\quote@name\expandafter{\@curr@file}}%
-   \openin\@inputcheck\q@curr@file \space %
+  \set@curr@file{\filec@ntents@checkdir#1}%
+  \edef\q@curr@file{\expandafter\quote@name\expandafter{\@curr@file}}%
+  \openin\@inputcheck\q@curr@file \space %
   \ifeof\@inputcheck%
     \@latex@warning@no@line%
         {Writing file `\@currdir\@curr@file'}%
@@ -2464,13 +2737,38 @@ of this package available from CTAN}
     \ch@ck7\reserved@c\write%
     \immediate\openout\reserved@c\q@curr@file\relax%
   \else%
-    \closein\@inputcheck%
-    \@latex@warning@no@line%
-            {File `\@curr@file' already exists on the system.\MessageBreak%
+    \if@filesw%
+      \@latex@warning@no@line%
+          {File `\@curr@file' already \filec@ntents@where.\MessageBreak%
              Not generating it from this source}%
-    \let\write\@gobbletwo%
-    \let\closeout\@gobble%
+      \let\write\@gobbletwo%
+      \let\closeout\@gobble%
+    \else%
+      \edef\reserved@a{#1}%
+      \edef\reserved@a{\detokenize\expandafter{\reserved@a}}%
+      \edef\reserved@b{\detokenize\expandafter{\jobname}}%
+      \ifx\reserved@a\reserved@b%
+        \@fileswtrue%
+      \else%
+        \edef\reserved@b{\reserved@b\detokenize{.tex}}%
+        \ifx\reserved@a\reserved@b
+          \@fileswtrue%
+        \fi%
+      \fi%
+      \chardef\reserved@c15 %
+      \ch@ck7\reserved@c\write%
+      \if@filesw%  % Foul ... trying to overwrite \jobname!
+      \@latex@error{Trying to overwrite `\jobname.tex'}{You can't %
+        write to the file you a reading from!\MessageBreak%
+        Data is written to screen instead.}%
+      \else%
+        \@latex@warning@no@line%
+           {Writing or overwriting file `\@currdir\@curr@file'}%
+        \immediate\openout\reserved@c#1\relax%
+      \fi%
+    \fi%
   \fi%
+  \closein\@inputcheck%
   \if@tempswa%
     \immediate\write\reserved@c{%
       \@percentchar\@percentchar\space%
@@ -2522,7 +2820,16 @@ of this package available from CTAN}
 \endgroup%
 \EndIncludeInRelease
 \IncludeInRelease{0000/00/00}%
-                 {\filec@ntents}{Spaces in file names}%
+                 {\filec@ntents}{Spaces in file names + optional arg}%
+
+\let\filec@ntents@opt        \@undefined
+\let\filec@ntents@force      \@undefined
+\let\filec@ntents@overwrite  \@undefined
+\let\filec@ntents@noheader   \@undefined
+\let\filec@ntents@nosearch   \@undefined
+\let\filec@ntents@checkdir   \@undefined
+\let\filec@ntents@where      \@undefined
+
 \begingroup%
 \@tempcnta=1
 \loop
@@ -2603,6 +2910,31 @@ of this package available from CTAN}
 \endgroup%
 \EndIncludeInRelease
 %%% From File: ltspace.dtx
+\IncludeInRelease{2019/10/01}%
+                 {\pagebreak}{Make commands robust}%
+\DeclareRobustCommand\pagebreak{\@testopt{\@no@pgbk-}4}
+\DeclareRobustCommand\nopagebreak{\@testopt\@no@pgbk4}
+\DeclareRobustCommand\linebreak{\@testopt{\@no@lnbk-}4}
+\DeclareRobustCommand\nolinebreak{\@testopt\@no@lnbk4}
+\DeclareRobustCommand\samepage{\interlinepenalty\@M
+   \postdisplaypenalty\@M
+   \interdisplaylinepenalty\@M
+   \@beginparpenalty\@M
+   \@endparpenalty\@M
+   \@itempenalty\@M
+   \@secpenalty\@M
+   \interfootnotelinepenalty\@M}
+\EndIncludeInRelease
+\IncludeInRelease{0000/00/00}%
+                 {\pagebreak}{Make commands robust}%
+
+\kernel@make@fragile\pagebreak
+\kernel@make@fragile\nopagebreak
+\kernel@make@fragile\linebreak
+\kernel@make@fragile\nolinebreak
+\kernel@make@fragile\samepage
+
+\EndIncludeInRelease
 \IncludeInRelease{2018/10/10}%
                  {\@esphack}{hyphenation and nobreak after space hack}%
 \def\@esphack{%
@@ -2749,9 +3081,9 @@ of this package available from CTAN}
 \EndIncludeInRelease
 \IncludeInRelease{2018/12/01}%
                  {\thinspace}{Start LR-mode}%
-\def\thinspace{\leavevmode@ifvmode\kern .16667em }
-\def\negthinspace{\leavevmode@ifvmode\kern-.16667em }
-\def\enspace{\leavevmode@ifvmode\kern.5em }
+\DeclareRobustCommand\thinspace{\leavevmode@ifvmode\kern .16667em }
+\DeclareRobustCommand\negthinspace{\leavevmode@ifvmode\kern-.16667em }
+\DeclareRobustCommand\enspace{\leavevmode@ifvmode\kern.5em }
 \protected\def\leavevmode@ifvmode{\ifvmode\expandafter\indent\fi}
 \EndIncludeInRelease
 \IncludeInRelease{0000/00/00}%
@@ -3191,6 +3523,241 @@ of this package available from CTAN}
  }%
 }
 \EndIncludeInRelease
+\IncludeInRelease{2019/10/01}%
+                 {DeclareMathAccent}{Make math accents robust}%
+\def\DeclareMathAccent#1#2#3#4{%
+  \expandafter\in@\csname sym#3\expandafter\endcsname
+     \expandafter{\group@list}%
+  \ifin@
+    \begingroup
+      \count\z@=#4\relax
+      \count\tw@\count\z@
+      \divide\count\z@\sixt@@n
+      \count@\count\z@
+      \multiply\count@\sixt@@n
+      \advance\count\tw@-\count@
+      \if\relax\noexpand#1% is command?
+        \edef\reserved@a{\noexpand\in@
+          {\expandafter\@gobble\string\mathaccent}
+          {\expandafter\meaning
+           \csname\expandafter\@gobble\string#1\space\endcsname}}%
+        \reserved@a
+        \ifin@
+          \expandafter\let
+            \csname\expandafter\@gobble\string#1\space\endcsname
+            \@undefined
+          \expandafter\set@mathaccent
+             \csname sym#3\endcsname#1#2%
+             {\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
+          \@font@info{Redeclaring math accent \string#1}%
+        \else
+          \expandafter\ifx
+          \csname\expandafter\@gobble\string#1\endcsname
+          \relax
+            \expandafter\set@mathaccent
+               \csname sym#3\endcsname#1#2%
+               {\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
+          \else
+            \@latex@error{Command `\string#1' already defined}\@eha
+          \fi
+        \fi
+      \else
+       \@latex@error{Not a command name: `\noexpand#1'}\@eha
+      \fi
+    \endgroup
+  \else
+    \@latex@error{Symbol font `#3' is not defined}\@eha
+  \fi
+}
+\EndIncludeInRelease
+\IncludeInRelease{0000/00/00}%
+                 {DeclareMathAccent}{Make math accents robust}%
+\def\DeclareMathAccent#1#2#3#4{%
+  \expandafter\in@\csname sym#3\expandafter\endcsname
+     \expandafter{\group@list}%
+  \ifin@
+    \begingroup
+      \count\z@=#4\relax
+      \count\tw@\count\z@
+      \divide\count\z@\sixt@@n
+      \count@\count\z@
+      \multiply\count@\sixt@@n
+      \advance\count\tw@-\count@
+      \if\relax\noexpand#1% is command?
+        \edef\reserved@a{\noexpand\in@
+           {\expandafter\@gobble\string\mathaccent}{\meaning#1}}%
+        \reserved@a
+        \ifin@
+          \expandafter\set@mathaccent
+             \csname sym#3\endcsname#1#2%
+             {\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
+          \@font@info{Redeclaring math accent \string#1}%
+        \else
+          \expandafter\ifx
+          \csname\expandafter\@gobble\string#1\endcsname
+          \relax
+            \expandafter\set@mathaccent
+               \csname sym#3\endcsname#1#2%
+               {\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
+          \else
+            \@latex@error{Command `\string#1' already defined}\@eha
+          \fi
+        \fi
+      \else
+       \@latex@error{Not a command name: `\noexpand#1'}\@eha
+      \fi
+    \endgroup
+  \else
+    \@latex@error{Symbol font `#3' is not defined}\@eha
+  \fi
+}
+\EndIncludeInRelease
+\IncludeInRelease{2019/10/01}%
+                 {\set@mathaccent}{makemath accents robust}%
+\def\set@mathaccent#1#2#3#4{%
+  \xdef#2{\mathaccent"\mathchar@type#3\hexnumber@#1#4\relax}%
+  \MakeRobust#2%
+}
+\@onlypreamble\set@mathaccent
+\EndIncludeInRelease
+\IncludeInRelease{0000/00/00}%
+                 {\set@mathaccent}{makemath accents robust}%
+
+\def\set@mathaccent#1#2#3#4{%
+  \xdef#2{\mathaccent"\mathchar@type#3\hexnumber@#1#4\relax}}
+
+\EndIncludeInRelease
+\IncludeInRelease{2019/10/01}%
+                 {\@DeclareMathDelimiter}{Make math delimiters robust}%
+\def\@DeclareMathDelimiter#1#2#3#4#5#6{%
+  \expandafter\in@\csname sym#3\expandafter\endcsname
+     \expandafter{\group@list}%
+  \ifin@
+    \expandafter\in@\csname sym#5\expandafter\endcsname
+       \expandafter{\group@list}%
+    \ifin@
+      \begingroup
+        \count\z@=#4\relax
+        \count\tw@\count\z@
+        \divide\count\z@\sixt@@n
+        \count@\count\z@
+        \multiply\count@\sixt@@n
+        \advance\count\tw@-\count@
+        \edef\reserved@c{\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
+      %
+        \count\z@=#6\relax
+        \count\tw@\count\z@
+        \divide\count\z@\sixt@@n
+        \count@\count\z@
+        \multiply\count@\sixt@@n
+        \advance\count\tw@-\count@
+        \edef\reserved@d{\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
+      %
+        \edef\reserved@a{\noexpand\in@
+          {\expandafter\@gobble\string\delimiter}%
+          {\expandafter\meaning\csname\expandafter\@gobble\string#1\space\endcsname}}%
+        \reserved@a
+        \ifin@
+          \expandafter\let\csname\expandafter\@gobble\string#1\space\endcsname\@undefined
+          \expandafter\set@mathdelimiter
+             \csname sym#3\expandafter\endcsname
+             \csname sym#5\endcsname#1#2%
+             \reserved@c\reserved@d
+          \@font@info{Redeclaring math delimiter \string#1}%
+        \else
+            \expandafter\ifx
+            \csname\expandafter\@gobble\string#1\endcsname
+            \relax
+            \expandafter\set@mathdelimiter
+              \csname sym#3\expandafter\endcsname
+              \csname sym#5\endcsname#1#2%
+              \reserved@c\reserved@d
+          \else
+            \@latex@error{Command `\string#1' already defined}\@eha
+          \fi
+        \fi
+      \endgroup
+    \else
+      \@latex@error{Symbol font `#5' is not defined}\@eha
+    \fi
+  \else
+    \@latex@error{Symbol font `#3' is not defined}\@eha
+  \fi
+}
+\EndIncludeInRelease
+\IncludeInRelease{0000/00/00}%
+                 {\@DeclareMathDelimiter}{Make math delimiters robust}%
+\def\@DeclareMathDelimiter#1#2#3#4#5#6{%
+  \expandafter\in@\csname sym#3\expandafter\endcsname
+     \expandafter{\group@list}%
+  \ifin@
+    \expandafter\in@\csname sym#5\expandafter\endcsname
+       \expandafter{\group@list}%
+    \ifin@
+      \begingroup
+        \count\z@=#4\relax
+        \count\tw@\count\z@
+        \divide\count\z@\sixt@@n
+        \count@\count\z@
+        \multiply\count@\sixt@@n
+        \advance\count\tw@-\count@
+        \edef\reserved@c{\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
+      %
+        \count\z@=#6\relax
+        \count\tw@\count\z@
+        \divide\count\z@\sixt@@n
+        \count@\count\z@
+        \multiply\count@\sixt@@n
+        \advance\count\tw@-\count@
+        \edef\reserved@d{\hexnumber@{\count\z@}\hexnumber@{\count\tw@}}%
+      %
+        \edef\reserved@a{\noexpand\in@
+            {\expandafter\@gobble\string\delimiter}{\meaning#1}}%
+        \reserved@a
+        \ifin@
+          \expandafter\set@mathdelimiter
+             \csname sym#3\expandafter\endcsname
+             \csname sym#5\endcsname#1#2%
+             \reserved@c\reserved@d
+          \@font@info{Redeclaring math delimiter \string#1}%
+        \else
+            \expandafter\ifx
+            \csname\expandafter\@gobble\string#1\endcsname
+            \relax
+            \expandafter\set@mathdelimiter
+              \csname sym#3\expandafter\endcsname
+              \csname sym#5\endcsname#1#2%
+              \reserved@c\reserved@d
+          \else
+            \@latex@error{Command `\string#1' already defined}\@eha
+          \fi
+        \fi
+      \endgroup
+    \else
+      \@latex@error{Symbol font `#5' is not defined}\@eha
+    \fi
+  \else
+    \@latex@error{Symbol font `#3' is not defined}\@eha
+  \fi
+}
+\EndIncludeInRelease
+\IncludeInRelease{2019/10/01}%
+                 {\set@mathdelimiter}{make delimiters robust}%
+\def\set@mathdelimiter#1#2#3#4#5#6{%
+  \xdef#3{\delimiter"\mathchar@type#4\hexnumber@#1#5%
+    \hexnumber@#2#6 }%
+  \MakeRobust#3%
+}
+\@onlypreamble\set@mathdelimiter
+\EndIncludeInRelease
+\IncludeInRelease{0000/00/00}%
+                 {\set@mathdelimiter}{make delimiters robust}%
+
+\def\set@mathdelimiter#1#2#3#4#5#6{%
+  \xdef#3{\delimiter"\mathchar@type#4\hexnumber@#1#5%
+    \hexnumber@#2#6 }}
+
+\EndIncludeInRelease
 %%% From File: ltfssini.dtx
 %% Copyright (C) 1989-2001 Frank Mittelbach and Rainer Sch\"opf,
 %% all rights reserved.
@@ -3237,13 +3804,13 @@ of this package available from CTAN}
 \EndIncludeInRelease
 \IncludeInRelease{2018/12/01}%
                  {\Big}{Start LR-mode}%
-\def\big#1{\leavevmode@ifvmode
+\DeclareRobustCommand\big[1]{\leavevmode@ifvmode
    {\hbox{$\left#1\vbox to8.5\p@{}\right.\n@space$}}}
-\def\Big#1{\leavevmode@ifvmode
+\DeclareRobustCommand\Big[1]{\leavevmode@ifvmode
    {\hbox{$\left#1\vbox to11.5\p@{}\right.\n@space$}}}
-\def\bigg#1{\leavevmode@ifvmode
+\DeclareRobustCommand\bigg[1]{\leavevmode@ifvmode
    {\hbox{$\left#1\vbox to14.5\p@{}\right.\n@space$}}}
-\def\Bigg#1{\leavevmode@ifvmode
+\DeclareRobustCommand\Bigg[1]{\leavevmode@ifvmode
    {\hbox{$\left#1\vbox to17.5\p@{}\right.\n@space$}}}
 \EndIncludeInRelease
 \IncludeInRelease{0000/00/00}%
@@ -3394,7 +3961,7 @@ of this package available from CTAN}
 \IncludeInRelease{2017/01/01}{\showhyphens}%
                  {XeTeX support for \showhyphens}%
 \ifx\XeTeXcharclass\@undefined
-\gdef\showhyphens#1{%
+\DeclareRobustCommand\showhyphens[1]{%
   \setbox0\vbox{%
     \color@begingroup
     \everypar{}%
@@ -3403,7 +3970,7 @@ of this package available from CTAN}
     \pretolerance\m@ne\tolerance\m@ne\hbadness\z@\showboxdepth\z@\ #1%
     \color@endgroup}}
 \else
-\long\def\showhyphens#1{%
+\DeclareRobustCommand\showhyphens[1]{%
   \setbox0\vbox{%
     \usefont{TU}{lmr}{m}{n}%
     \hsize 1sp %
@@ -3613,6 +4180,27 @@ of this package available from CTAN}
 \EndIncludeInRelease
 %%% From File: ltpageno.dtx
 %%% From File: ltxref.dtx
+\IncludeInRelease{2019/10/01}%
+                 {\refstepcounter}{Add \labelformat and \Ref}%
+\def\refstepcounter#1{\stepcounter{#1}%
+    \protected@edef\@currentlabel
+       {\csname p@#1\expandafter\endcsname\csname the#1\endcsname}%
+}
+\def\labelformat#1{\expandafter\def\csname p@#1\endcsname##1}
+\DeclareRobustCommand\Ref[1]{\protected@edef\@tempa{\ref{#1}}%
+   \expandafter\MakeUppercase\@tempa}
+\EndIncludeInRelease
+\IncludeInRelease{0000/00/00}%
+                 {\refstepcounter}{Add \labelformat and \Ref}%
+
+\def\refstepcounter#1{\stepcounter{#1}%
+    \protected@edef\@currentlabel
+       {\csname p@#1\expandafter\endcsname\csname the#1\endcsname}%
+}
+\let\labelformat\@undefined
+\let\Ref\@undefined
+
+\EndIncludeInRelease
 %%% From File: ltmiscen.dtx
 \IncludeInRelease{2018/12/01}%
                  {\protected@file@percent}{Mask line endings}%
@@ -3648,6 +4236,68 @@ of this package available from CTAN}
     }%
 }
 \EndIncludeInRelease
+\IncludeInRelease{2019/10/01}%
+                 {\begin}{Making \begin/\end robust}%
+\DeclareRobustCommand\begin[1]{%
+  \@ifundefined{#1}%
+    {\def\reserved@a{\@latex@error{Environment #1 undefined}\@eha}}%
+    {\def\reserved@a{\def\@currenvir{#1}%
+     \edef\@currenvline{\on@line}%
+     \csname #1\endcsname}}%
+  \@ignorefalse
+  \begingroup\@endpefalse\reserved@a}
+\edef\end
+  {\unexpanded{%
+     \romannumeral
+       \ifx\protect\@typeset@protect
+       \expandafter       %1
+         \expandafter        %2
+       \expandafter       %1
+           \expandafter         %3 expands the \csname inside \end<space>
+       \expandafter       %1
+         \expandafter        %2  expands \end<space>
+       \expandafter       %1     expands the \else
+           \z@
+       \else
+         \expandafter\z@\expandafter\protect
+       \fi
+   }%
+   \expandafter\noexpand\csname end \endcsname
+  }
+\@namedef{end }#1{%
+  \csname end#1\endcsname\@checkend{#1}%
+  \expandafter\endgroup\if@endpe\@doendpe\fi
+  \if@ignore\@ignorefalse\ignorespaces\fi}
+\EndIncludeInRelease
+\IncludeInRelease{0000/00/00}%
+                 {\begin}{Making \begin/\end robust}%
+\kernel@make@fragile\begin
+\kernel@make@fragile\end
+
+\EndIncludeInRelease
+\IncludeInRelease{2019/10/01}%
+                 {\centering}{Make commands robust}%
+\DeclareRobustCommand\centering{%
+  \let\\\@centercr
+  \rightskip\@flushglue\leftskip\@flushglue
+  \parindent\z@\parfillskip\z@skip}
+\DeclareRobustCommand\raggedright{%
+  \let\\\@centercr\@rightskip\@flushglue \rightskip\@rightskip
+  \leftskip\z@skip
+  \parindent\z@}
+\DeclareRobustCommand\raggedleft{%
+  \let\\\@centercr
+  \rightskip\z@skip\leftskip\@flushglue
+  \parindent\z@\parfillskip\z@skip}
+\EndIncludeInRelease
+\IncludeInRelease{0000/00/00}%
+                 {\centering}{Make commands robust}%
+
+\kernel@make@fragile\centering
+\kernel@make@fragile\raggedright
+\kernel@make@fragile\raggedleft
+
+\EndIncludeInRelease
 \IncludeInRelease{2017-04-15}{\@verbatim}%
                  {Disable hyphenation in verbatim}%
 \def\@verbatim{\trivlist \item\relax
diff --git a/Master/texmf-dist/tex/latex-dev/base/latexsym.sty b/Master/texmf-dist/tex/latex-dev/base/latexsym.sty
index 5934b1fb521..f4cc17f4a98 100644
--- a/Master/texmf-dist/tex/latex-dev/base/latexsym.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/latexsym.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/latin1.def b/Master/texmf-dist/tex/latex-dev/base/latin1.def
index 241ddbe61ec..a58aecbbb20 100644
--- a/Master/texmf-dist/tex/latex-dev/base/latin1.def
+++ b/Master/texmf-dist/tex/latex-dev/base/latin1.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/latin10.def b/Master/texmf-dist/tex/latex-dev/base/latin10.def
index 908407fb8d3..466bb650e63 100644
--- a/Master/texmf-dist/tex/latex-dev/base/latin10.def
+++ b/Master/texmf-dist/tex/latex-dev/base/latin10.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/latin2.def b/Master/texmf-dist/tex/latex-dev/base/latin2.def
index 3a226f1ade2..f999e62534b 100644
--- a/Master/texmf-dist/tex/latex-dev/base/latin2.def
+++ b/Master/texmf-dist/tex/latex-dev/base/latin2.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/latin3.def b/Master/texmf-dist/tex/latex-dev/base/latin3.def
index 84319b1e4b9..c69a4fd3759 100644
--- a/Master/texmf-dist/tex/latex-dev/base/latin3.def
+++ b/Master/texmf-dist/tex/latex-dev/base/latin3.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/latin4.def b/Master/texmf-dist/tex/latex-dev/base/latin4.def
index 94c0b7c343c..51715492be2 100644
--- a/Master/texmf-dist/tex/latex-dev/base/latin4.def
+++ b/Master/texmf-dist/tex/latex-dev/base/latin4.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/latin5.def b/Master/texmf-dist/tex/latex-dev/base/latin5.def
index 586d72dd8b8..016013c8fa6 100644
--- a/Master/texmf-dist/tex/latex-dev/base/latin5.def
+++ b/Master/texmf-dist/tex/latex-dev/base/latin5.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/latin9.def b/Master/texmf-dist/tex/latex-dev/base/latin9.def
index 3254f49cedc..5105b9dace6 100644
--- a/Master/texmf-dist/tex/latex-dev/base/latin9.def
+++ b/Master/texmf-dist/tex/latex-dev/base/latin9.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/lcyenc.dfu b/Master/texmf-dist/tex/latex-dev/base/lcyenc.dfu
index 30bccb8c2a0..6b488c0fea0 100644
--- a/Master/texmf-dist/tex/latex-dev/base/lcyenc.dfu
+++ b/Master/texmf-dist/tex/latex-dev/base/lcyenc.dfu
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/leqno.clo b/Master/texmf-dist/tex/latex-dev/base/leqno.clo
index fe9e938cf8e..933040ca9ed 100644
--- a/Master/texmf-dist/tex/latex-dev/base/leqno.clo
+++ b/Master/texmf-dist/tex/latex-dev/base/leqno.clo
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2018
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/leqno.sty b/Master/texmf-dist/tex/latex-dev/base/leqno.sty
index f1c0dbb5cee..ec215a5d6ab 100644
--- a/Master/texmf-dist/tex/latex-dev/base/leqno.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/leqno.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/letter.cls b/Master/texmf-dist/tex/latex-dev/base/letter.cls
index 63eca4e9f8e..b1d81ae04fe 100644
--- a/Master/texmf-dist/tex/latex-dev/base/letter.cls
+++ b/Master/texmf-dist/tex/latex-dev/base/letter.cls
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/letter.sty b/Master/texmf-dist/tex/latex-dev/base/letter.sty
index 09a2df9428a..f9ae4dc76e2 100644
--- a/Master/texmf-dist/tex/latex-dev/base/letter.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/letter.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/ltluatex.lua b/Master/texmf-dist/tex/latex-dev/base/ltluatex.lua
index 539cb6a2edd..b1d31801d02 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ltluatex.lua
+++ b/Master/texmf-dist/tex/latex-dev/base/ltluatex.lua
@@ -26,7 +26,7 @@
 -- The latest version of this license is in
 --    https://www.latex-project.org/lppl.txt
 -- and version 1.3c or later is part of all distributions of LaTeX
--- version 2005/12/01 or later.
+-- version 2008 or later.
 -- 
 -- This file has the LPPL maintenance status "maintained".
 -- 
diff --git a/Master/texmf-dist/tex/latex-dev/base/ltluatex.tex b/Master/texmf-dist/tex/latex-dev/base/ltluatex.tex
index ab167e40ade..b34aca5d547 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ltluatex.tex
+++ b/Master/texmf-dist/tex/latex-dev/base/ltluatex.tex
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2018
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/ltnews.cls b/Master/texmf-dist/tex/latex-dev/base/ltnews.cls
index 9aa72c53dae..1ef65297467 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ltnews.cls
+++ b/Master/texmf-dist/tex/latex-dev/base/ltnews.cls
@@ -1,6 +1,6 @@
 % \iffalse meta-comment
 %
-% Copyright 1993-2017
+% Copyright 1993-2019
 % The LaTeX3 Project and any individual authors listed elsewhere
 % in this file. 
 % 
@@ -13,7 +13,7 @@
 % The latest version of this license is in
 %    https://www.latex-project.org/lppl.txt
 % and version 1.3c or later is part of all distributions of LaTeX 
-% version 2005/12/01 or later.
+% version 2008 or later.
 % 
 % This file has the LPPL maintenance status "maintained".
 % 
diff --git a/Master/texmf-dist/tex/latex-dev/base/ltxcheck.tex b/Master/texmf-dist/tex/latex-dev/base/ltxcheck.tex
index d5426aafa1c..7446c06cead 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ltxcheck.tex
+++ b/Master/texmf-dist/tex/latex-dev/base/ltxcheck.tex
@@ -1,6 +1,6 @@
 % \iffalse meta-comment
 %
-% Copyright 1993-2016
+% Copyright (C) 1993-2019
 % The LaTeX3 Project and any individual authors listed elsewhere
 % in this file. 
 % 
@@ -13,7 +13,7 @@
 % The latest version of this license is in
 %    https://www.latex-project.org/lppl.txt
 % and version 1.3c or later is part of all distributions of LaTeX 
-% version 2005/12/01 or later.
+% version 2008 or later.
 % 
 % This file has the LPPL maintenance status "maintained".
 % 
diff --git a/Master/texmf-dist/tex/latex-dev/base/ltxdoc.cls b/Master/texmf-dist/tex/latex-dev/base/ltxdoc.cls
index b8cfc493c99..b663704d4cf 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ltxdoc.cls
+++ b/Master/texmf-dist/tex/latex-dev/base/ltxdoc.cls
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/ltxguide.cls b/Master/texmf-dist/tex/latex-dev/base/ltxguide.cls
index 7b1d05ec20b..8ef06b95aac 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ltxguide.cls
+++ b/Master/texmf-dist/tex/latex-dev/base/ltxguide.cls
@@ -1,6 +1,6 @@
 % \iffalse meta-comment
 %
-% Copyright 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
+% Copyright 1993-2019
 % The LaTeX3 Project and any individual authors listed elsewhere
 % in this file. 
 % 
@@ -13,7 +13,7 @@
 % The latest version of this license is in
 %    https://www.latex-project.org/lppl.txt
 % and version 1.3c or later is part of all distributions of LaTeX 
-% version 2005/12/01 or later.
+% version 2008 or later.
 % 
 % This file has the LPPL maintenance status "maintained".
 % 
diff --git a/Master/texmf-dist/tex/latex-dev/base/ly1enc.dfu b/Master/texmf-dist/tex/latex-dev/base/ly1enc.dfu
index b2003faa0b2..2855e2008d7 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ly1enc.dfu
+++ b/Master/texmf-dist/tex/latex-dev/base/ly1enc.dfu
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/macce.def b/Master/texmf-dist/tex/latex-dev/base/macce.def
index cd51322aedb..fde50e0653a 100644
--- a/Master/texmf-dist/tex/latex-dev/base/macce.def
+++ b/Master/texmf-dist/tex/latex-dev/base/macce.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/makeidx.sty b/Master/texmf-dist/tex/latex-dev/base/makeidx.sty
index 02e03e4f4c5..49bab2e38cb 100644
--- a/Master/texmf-dist/tex/latex-dev/base/makeidx.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/makeidx.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/minimal.cls b/Master/texmf-dist/tex/latex-dev/base/minimal.cls
index 48d3cb4cf08..d55576326d3 100644
--- a/Master/texmf-dist/tex/latex-dev/base/minimal.cls
+++ b/Master/texmf-dist/tex/latex-dev/base/minimal.cls
@@ -1,6 +1,6 @@
 % \iffalse meta-comment
 %
-% Copyright 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
+% Copyright 1993-2019
 % The LaTeX3 Project and any individual authors listed elsewhere
 % in this file. 
 % 
@@ -13,7 +13,7 @@
 % The latest version of this license is in
 %    https://www.latex-project.org/lppl.txt
 % and version 1.3c or later is part of all distributions of LaTeX 
-% version 2005/12/01 or later.
+% version 2008 or later.
 % 
 % This file has the LPPL maintenance status "maintained".
 % 
diff --git a/Master/texmf-dist/tex/latex-dev/base/newlfont.sty b/Master/texmf-dist/tex/latex-dev/base/newlfont.sty
index 11422118a44..53b906a0101 100644
--- a/Master/texmf-dist/tex/latex-dev/base/newlfont.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/newlfont.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2018
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/next.def b/Master/texmf-dist/tex/latex-dev/base/next.def
index a9c3443855c..e091652763b 100644
--- a/Master/texmf-dist/tex/latex-dev/base/next.def
+++ b/Master/texmf-dist/tex/latex-dev/base/next.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/nfssfont.tex b/Master/texmf-dist/tex/latex-dev/base/nfssfont.tex
index 95160c55ab5..e7fe4587bf0 100644
--- a/Master/texmf-dist/tex/latex-dev/base/nfssfont.tex
+++ b/Master/texmf-dist/tex/latex-dev/base/nfssfont.tex
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/oldlfont.sty b/Master/texmf-dist/tex/latex-dev/base/oldlfont.sty
index 0424f4dfd0c..b096dc035c2 100644
--- a/Master/texmf-dist/tex/latex-dev/base/oldlfont.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/oldlfont.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2018
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/omlcmm.fd b/Master/texmf-dist/tex/latex-dev/base/omlcmm.fd
index b6713d45766..fd275079536 100644
--- a/Master/texmf-dist/tex/latex-dev/base/omlcmm.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/omlcmm.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/omlcmr.fd b/Master/texmf-dist/tex/latex-dev/base/omlcmr.fd
index 59ec0970445..7dc0ed4b626 100644
--- a/Master/texmf-dist/tex/latex-dev/base/omlcmr.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/omlcmr.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/omlenc.def b/Master/texmf-dist/tex/latex-dev/base/omlenc.def
index be81a80cc57..58927940dd5 100644
--- a/Master/texmf-dist/tex/latex-dev/base/omlenc.def
+++ b/Master/texmf-dist/tex/latex-dev/base/omlenc.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/omllcmm.fd b/Master/texmf-dist/tex/latex-dev/base/omllcmm.fd
index ffaf876d91a..14540e6c56c 100644
--- a/Master/texmf-dist/tex/latex-dev/base/omllcmm.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/omllcmm.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/omscmr.fd b/Master/texmf-dist/tex/latex-dev/base/omscmr.fd
index d10d116e0da..111eee9bf68 100644
--- a/Master/texmf-dist/tex/latex-dev/base/omscmr.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/omscmr.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/omscmsy.fd b/Master/texmf-dist/tex/latex-dev/base/omscmsy.fd
index fbf2952c606..039aa56dc7e 100644
--- a/Master/texmf-dist/tex/latex-dev/base/omscmsy.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/omscmsy.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/omsenc.def b/Master/texmf-dist/tex/latex-dev/base/omsenc.def
index 8dbc1dc38c3..e0168a678f2 100644
--- a/Master/texmf-dist/tex/latex-dev/base/omsenc.def
+++ b/Master/texmf-dist/tex/latex-dev/base/omsenc.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/omsenc.dfu b/Master/texmf-dist/tex/latex-dev/base/omsenc.dfu
index 04e70611a15..a1db9f3024b 100644
--- a/Master/texmf-dist/tex/latex-dev/base/omsenc.dfu
+++ b/Master/texmf-dist/tex/latex-dev/base/omsenc.dfu
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/omslcmsy.fd b/Master/texmf-dist/tex/latex-dev/base/omslcmsy.fd
index 76288d2a6cd..1c51a6217b0 100644
--- a/Master/texmf-dist/tex/latex-dev/base/omslcmsy.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/omslcmsy.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/omxcmex.fd b/Master/texmf-dist/tex/latex-dev/base/omxcmex.fd
index ce66ea01600..173b819789e 100644
--- a/Master/texmf-dist/tex/latex-dev/base/omxcmex.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/omxcmex.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/omxlcmex.fd b/Master/texmf-dist/tex/latex-dev/base/omxlcmex.fd
index 94f6c00b073..d8db5cdb872 100644
--- a/Master/texmf-dist/tex/latex-dev/base/omxlcmex.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/omxlcmex.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/openbib.sty b/Master/texmf-dist/tex/latex-dev/base/openbib.sty
index 1a104d36fce..be82844682f 100644
--- a/Master/texmf-dist/tex/latex-dev/base/openbib.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/openbib.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/ot1cmdh.fd b/Master/texmf-dist/tex/latex-dev/base/ot1cmdh.fd
index c8140b2d404..33e0b26a905 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ot1cmdh.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/ot1cmdh.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/ot1cmfib.fd b/Master/texmf-dist/tex/latex-dev/base/ot1cmfib.fd
index d3720b16378..96dd88a0a4b 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ot1cmfib.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/ot1cmfib.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/ot1cmfr.fd b/Master/texmf-dist/tex/latex-dev/base/ot1cmfr.fd
index 44b0c4156c5..1262e15ad06 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ot1cmfr.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/ot1cmfr.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/ot1cmr.fd b/Master/texmf-dist/tex/latex-dev/base/ot1cmr.fd
index ae6f59bc1eb..c4e39f9ecf1 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ot1cmr.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/ot1cmr.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/ot1cmss.fd b/Master/texmf-dist/tex/latex-dev/base/ot1cmss.fd
index 568a35f5dab..da3e66ef056 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ot1cmss.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/ot1cmss.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/ot1cmtt.fd b/Master/texmf-dist/tex/latex-dev/base/ot1cmtt.fd
index 2b185284704..be2b2a9b1ad 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ot1cmtt.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/ot1cmtt.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/ot1cmvtt.fd b/Master/texmf-dist/tex/latex-dev/base/ot1cmvtt.fd
index bc990c28618..b1f9a47f007 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ot1cmvtt.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/ot1cmvtt.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/ot1enc.def b/Master/texmf-dist/tex/latex-dev/base/ot1enc.def
index 7456219b62e..9f379788ca0 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ot1enc.def
+++ b/Master/texmf-dist/tex/latex-dev/base/ot1enc.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/ot1enc.dfu b/Master/texmf-dist/tex/latex-dev/base/ot1enc.dfu
index 749c42110a8..361dced096e 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ot1enc.dfu
+++ b/Master/texmf-dist/tex/latex-dev/base/ot1enc.dfu
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/ot1lcmss.fd b/Master/texmf-dist/tex/latex-dev/base/ot1lcmss.fd
index e94fa285551..bf7c7e046bb 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ot1lcmss.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/ot1lcmss.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/ot1lcmtt.fd b/Master/texmf-dist/tex/latex-dev/base/ot1lcmtt.fd
index bf122898c19..a2106368f32 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ot1lcmtt.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/ot1lcmtt.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/ot2enc.dfu b/Master/texmf-dist/tex/latex-dev/base/ot2enc.dfu
index fe3b3ccf8da..399ba079fcd 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ot2enc.dfu
+++ b/Master/texmf-dist/tex/latex-dev/base/ot2enc.dfu
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/ot4enc.def b/Master/texmf-dist/tex/latex-dev/base/ot4enc.def
index d46d737c569..1e0a5aa928b 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ot4enc.def
+++ b/Master/texmf-dist/tex/latex-dev/base/ot4enc.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/preload.cfg b/Master/texmf-dist/tex/latex-dev/base/preload.cfg
index 44b5dfc1aa2..511081b7372 100644
--- a/Master/texmf-dist/tex/latex-dev/base/preload.cfg
+++ b/Master/texmf-dist/tex/latex-dev/base/preload.cfg
@@ -8,7 +8,7 @@
 %% 
 %% This is a generated file.
 %% 
-%% Copyright 1993-2018
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -21,7 +21,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
@@ -37,7 +37,7 @@
 %% 
 %%% From File: fontdef.dtx
 \ProvidesFile{preload.cfg}
-           [2018/09/24 v3.0b LaTeX Kernel
+           [2019/08/27 v3.0c LaTeX Kernel
 (Uncustomised preload
            font setup)]
 %%
diff --git a/Master/texmf-dist/tex/latex-dev/base/preload.ltx b/Master/texmf-dist/tex/latex-dev/base/preload.ltx
index 92ecda02615..fba9f3cc7fe 100644
--- a/Master/texmf-dist/tex/latex-dev/base/preload.ltx
+++ b/Master/texmf-dist/tex/latex-dev/base/preload.ltx
@@ -8,7 +8,7 @@
 %% 
 %% This is a generated file.
 %% 
-%% Copyright 1993-2018
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -21,7 +21,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/proc.cls b/Master/texmf-dist/tex/latex-dev/base/proc.cls
index bcb01d6c924..6550bae3ddc 100644
--- a/Master/texmf-dist/tex/latex-dev/base/proc.cls
+++ b/Master/texmf-dist/tex/latex-dev/base/proc.cls
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/proc.sty b/Master/texmf-dist/tex/latex-dev/base/proc.sty
index 345254f498b..95394e17efc 100644
--- a/Master/texmf-dist/tex/latex-dev/base/proc.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/proc.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/report.cls b/Master/texmf-dist/tex/latex-dev/base/report.cls
index 15dafdf81cb..1101f8fa919 100644
--- a/Master/texmf-dist/tex/latex-dev/base/report.cls
+++ b/Master/texmf-dist/tex/latex-dev/base/report.cls
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
@@ -43,7 +43,7 @@
 %% extension .ins) which are part of the distribution.
 \NeedsTeXFormat{LaTeX2e}[1995/12/01]
 \ProvidesClass{report}
-              [2018/09/03 v1.4i
+              [2019/08/27 v1.4j
  Standard LaTeX document class]
 \newcommand\@ptsize{}
 \newif\if@restonecol
diff --git a/Master/texmf-dist/tex/latex-dev/base/report.sty b/Master/texmf-dist/tex/latex-dev/base/report.sty
index eddb8c4eb80..312859743b0 100644
--- a/Master/texmf-dist/tex/latex-dev/base/report.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/report.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/sfonts.def b/Master/texmf-dist/tex/latex-dev/base/sfonts.def
index 9bc1c1d4709..c73390c8474 100644
--- a/Master/texmf-dist/tex/latex-dev/base/sfonts.def
+++ b/Master/texmf-dist/tex/latex-dev/base/sfonts.def
@@ -8,7 +8,7 @@
 %% 
 %% This is a generated file.
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -21,7 +21,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/shortvrb.sty b/Master/texmf-dist/tex/latex-dev/base/shortvrb.sty
index 58de64b1f59..fe2cd61977b 100644
--- a/Master/texmf-dist/tex/latex-dev/base/shortvrb.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/shortvrb.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/showidx.sty b/Master/texmf-dist/tex/latex-dev/base/showidx.sty
index 8df3e300e27..df052dbd75d 100644
--- a/Master/texmf-dist/tex/latex-dev/base/showidx.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/showidx.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/size10.clo b/Master/texmf-dist/tex/latex-dev/base/size10.clo
index 2f7cd58f31f..7b98ee411d5 100644
--- a/Master/texmf-dist/tex/latex-dev/base/size10.clo
+++ b/Master/texmf-dist/tex/latex-dev/base/size10.clo
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
@@ -42,7 +42,7 @@
 %% and covered by LPPL is defined by the unpacking scripts (with
 %% extension .ins) which are part of the distribution.
 \ProvidesFile{size10.clo}
-              [2018/09/03 v1.4i
+              [2019/08/27 v1.4j
       Standard LaTeX file (size option)]
 \renewcommand\normalsize{%
    \@setfontsize\normalsize\@xpt\@xiipt
@@ -52,7 +52,8 @@
    \belowdisplayskip \abovedisplayskip
    \let\@listi\@listI}
 \normalsize
-\newcommand\small{%
+\MakeRobust\normalsize
+\DeclareRobustCommand\small{%
    \@setfontsize\small\@ixpt{11}%
    \abovedisplayskip 8.5\p@ \@plus3\p@ \@minus4\p@
    \abovedisplayshortskip \z@ \@plus2\p@
@@ -63,7 +64,7 @@
                \itemsep \parsep}%
    \belowdisplayskip \abovedisplayskip
 }
-\newcommand\footnotesize{%
+\DeclareRobustCommand\footnotesize{%
    \@setfontsize\footnotesize\@viiipt{9.5}%
    \abovedisplayskip 6\p@ \@plus2\p@ \@minus4\p@
    \abovedisplayshortskip \z@ \@plus\p@
@@ -74,13 +75,13 @@
                \itemsep \parsep}%
    \belowdisplayskip \abovedisplayskip
 }
-\newcommand\scriptsize{\@setfontsize\scriptsize\@viipt\@viiipt}
-\newcommand\tiny{\@setfontsize\tiny\@vpt\@vipt}
-\newcommand\large{\@setfontsize\large\@xiipt{14}}
-\newcommand\Large{\@setfontsize\Large\@xivpt{18}}
-\newcommand\LARGE{\@setfontsize\LARGE\@xviipt{22}}
-\newcommand\huge{\@setfontsize\huge\@xxpt{25}}
-\newcommand\Huge{\@setfontsize\Huge\@xxvpt{30}}
+\DeclareRobustCommand\scriptsize{\@setfontsize\scriptsize\@viipt\@viiipt}
+\DeclareRobustCommand\tiny{\@setfontsize\tiny\@vpt\@vipt}
+\DeclareRobustCommand\large{\@setfontsize\large\@xiipt{14}}
+\DeclareRobustCommand\Large{\@setfontsize\Large\@xivpt{18}}
+\DeclareRobustCommand\LARGE{\@setfontsize\LARGE\@xviipt{22}}
+\DeclareRobustCommand\huge{\@setfontsize\huge\@xxpt{25}}
+\DeclareRobustCommand\Huge{\@setfontsize\Huge\@xxvpt{30}}
 \if@twocolumn
   \setlength\parindent{1em}
 \else
diff --git a/Master/texmf-dist/tex/latex-dev/base/size11.clo b/Master/texmf-dist/tex/latex-dev/base/size11.clo
index 7ebbd7c5d91..7822a848ddd 100644
--- a/Master/texmf-dist/tex/latex-dev/base/size11.clo
+++ b/Master/texmf-dist/tex/latex-dev/base/size11.clo
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
@@ -42,7 +42,7 @@
 %% and covered by LPPL is defined by the unpacking scripts (with
 %% extension .ins) which are part of the distribution.
 \ProvidesFile{size11.clo}
-              [2018/09/03 v1.4i
+              [2019/08/27 v1.4j
       Standard LaTeX file (size option)]
 \renewcommand\normalsize{%
    \@setfontsize\normalsize\@xipt{13.6}%
@@ -52,7 +52,8 @@
    \belowdisplayskip \abovedisplayskip
    \let\@listi\@listI}
 \normalsize
-\newcommand\small{%
+\MakeRobust\normalsize
+\DeclareRobustCommand\small{%
    \@setfontsize\small\@xpt\@xiipt
    \abovedisplayskip 10\p@ \@plus2\p@ \@minus5\p@
    \abovedisplayshortskip \z@ \@plus3\p@
@@ -63,7 +64,7 @@
                \itemsep \parsep}%
    \belowdisplayskip \abovedisplayskip
 }
-\newcommand\footnotesize{%
+\DeclareRobustCommand\footnotesize{%
    \@setfontsize\footnotesize\@ixpt{11}%
    \abovedisplayskip 8\p@ \@plus2\p@ \@minus4\p@
    \abovedisplayshortskip \z@ \@plus\p@
@@ -74,13 +75,13 @@
                \itemsep \parsep}%
    \belowdisplayskip \abovedisplayskip
 }
-\newcommand\scriptsize{\@setfontsize\scriptsize\@viiipt{9.5}}
-\newcommand\tiny{\@setfontsize\tiny\@vipt\@viipt}
-\newcommand\large{\@setfontsize\large\@xiipt{14}}
-\newcommand\Large{\@setfontsize\Large\@xivpt{18}}
-\newcommand\LARGE{\@setfontsize\LARGE\@xviipt{22}}
-\newcommand\huge{\@setfontsize\huge\@xxpt{25}}
-\newcommand\Huge{\@setfontsize\Huge\@xxvpt{30}}
+\DeclareRobustCommand\scriptsize{\@setfontsize\scriptsize\@viiipt{9.5}}
+\DeclareRobustCommand\tiny{\@setfontsize\tiny\@vipt\@viipt}
+\DeclareRobustCommand\large{\@setfontsize\large\@xiipt{14}}
+\DeclareRobustCommand\Large{\@setfontsize\Large\@xivpt{18}}
+\DeclareRobustCommand\LARGE{\@setfontsize\LARGE\@xviipt{22}}
+\DeclareRobustCommand\huge{\@setfontsize\huge\@xxpt{25}}
+\DeclareRobustCommand\Huge{\@setfontsize\Huge\@xxvpt{30}}
 \if@twocolumn
   \setlength\parindent{1em}
 \else
diff --git a/Master/texmf-dist/tex/latex-dev/base/size12.clo b/Master/texmf-dist/tex/latex-dev/base/size12.clo
index a81a9cd8fe3..e9c67bd1e63 100644
--- a/Master/texmf-dist/tex/latex-dev/base/size12.clo
+++ b/Master/texmf-dist/tex/latex-dev/base/size12.clo
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
@@ -42,7 +42,7 @@
 %% and covered by LPPL is defined by the unpacking scripts (with
 %% extension .ins) which are part of the distribution.
 \ProvidesFile{size12.clo}
-              [2018/09/03 v1.4i
+              [2019/08/27 v1.4j
       Standard LaTeX file (size option)]
 \renewcommand\normalsize{%
    \@setfontsize\normalsize\@xiipt{14.5}%
@@ -52,7 +52,8 @@
    \belowdisplayskip \abovedisplayskip
    \let\@listi\@listI}
 \normalsize
-\newcommand\small{%
+\MakeRobust\normalsize
+\DeclareRobustCommand\small{%
    \@setfontsize\small\@xipt{13.6}%
    \abovedisplayskip 11\p@ \@plus3\p@ \@minus6\p@
    \abovedisplayshortskip \z@ \@plus3\p@
@@ -63,7 +64,7 @@
                \itemsep \parsep}%
    \belowdisplayskip \abovedisplayskip
 }
-\newcommand\footnotesize{%
+\DeclareRobustCommand\footnotesize{%
    \@setfontsize\footnotesize\@xpt\@xiipt
    \abovedisplayskip 10\p@ \@plus2\p@ \@minus5\p@
    \abovedisplayshortskip \z@ \@plus3\p@
@@ -74,12 +75,12 @@
                \itemsep \parsep}%
    \belowdisplayskip \abovedisplayskip
 }
-\newcommand\scriptsize{\@setfontsize\scriptsize\@viiipt{9.5}}
-\newcommand\tiny{\@setfontsize\tiny\@vipt\@viipt}
-\newcommand\large{\@setfontsize\large\@xivpt{18}}
-\newcommand\Large{\@setfontsize\Large\@xviipt{22}}
-\newcommand\LARGE{\@setfontsize\LARGE\@xxpt{25}}
-\newcommand\huge{\@setfontsize\huge\@xxvpt{30}}
+\DeclareRobustCommand\scriptsize{\@setfontsize\scriptsize\@viiipt{9.5}}
+\DeclareRobustCommand\tiny{\@setfontsize\tiny\@vipt\@viipt}
+\DeclareRobustCommand\large{\@setfontsize\large\@xivpt{18}}
+\DeclareRobustCommand\Large{\@setfontsize\Large\@xviipt{22}}
+\DeclareRobustCommand\LARGE{\@setfontsize\LARGE\@xxpt{25}}
+\DeclareRobustCommand\huge{\@setfontsize\huge\@xxvpt{30}}
 \let\Huge=\huge
 \if@twocolumn
   \setlength\parindent{1em}
diff --git a/Master/texmf-dist/tex/latex-dev/base/slides.cls b/Master/texmf-dist/tex/latex-dev/base/slides.cls
index 9e5ed5a628b..b2ee30b7f13 100644
--- a/Master/texmf-dist/tex/latex-dev/base/slides.cls
+++ b/Master/texmf-dist/tex/latex-dev/base/slides.cls
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/slides.def b/Master/texmf-dist/tex/latex-dev/base/slides.def
index 0957e1190cd..1b7f321cf68 100644
--- a/Master/texmf-dist/tex/latex-dev/base/slides.def
+++ b/Master/texmf-dist/tex/latex-dev/base/slides.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/slides.sty b/Master/texmf-dist/tex/latex-dev/base/slides.sty
index 95360e9e717..31bc19353bf 100644
--- a/Master/texmf-dist/tex/latex-dev/base/slides.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/slides.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/syntonly.sty b/Master/texmf-dist/tex/latex-dev/base/syntonly.sty
index 021fb0a2837..1af013f7686 100644
--- a/Master/texmf-dist/tex/latex-dev/base/syntonly.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/syntonly.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/t1cmdh.fd b/Master/texmf-dist/tex/latex-dev/base/t1cmdh.fd
index 2e9fccf1366..80aa2c9672c 100644
--- a/Master/texmf-dist/tex/latex-dev/base/t1cmdh.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/t1cmdh.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/t1cmfib.fd b/Master/texmf-dist/tex/latex-dev/base/t1cmfib.fd
index 1f9db908f7f..48d22525e4b 100644
--- a/Master/texmf-dist/tex/latex-dev/base/t1cmfib.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/t1cmfib.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/t1cmfr.fd b/Master/texmf-dist/tex/latex-dev/base/t1cmfr.fd
index bf2a2430f83..10b47f0f476 100644
--- a/Master/texmf-dist/tex/latex-dev/base/t1cmfr.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/t1cmfr.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/t1cmr.fd b/Master/texmf-dist/tex/latex-dev/base/t1cmr.fd
index ae96d870b87..861a2fc5d46 100644
--- a/Master/texmf-dist/tex/latex-dev/base/t1cmr.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/t1cmr.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/t1cmss.fd b/Master/texmf-dist/tex/latex-dev/base/t1cmss.fd
index a0958c3da4a..dbab3cd7fe5 100644
--- a/Master/texmf-dist/tex/latex-dev/base/t1cmss.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/t1cmss.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/t1cmtt.fd b/Master/texmf-dist/tex/latex-dev/base/t1cmtt.fd
index 9a91d9baf1a..f1bf82cf022 100644
--- a/Master/texmf-dist/tex/latex-dev/base/t1cmtt.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/t1cmtt.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/t1cmvtt.fd b/Master/texmf-dist/tex/latex-dev/base/t1cmvtt.fd
index 60f488f9d9a..a7f56399a64 100644
--- a/Master/texmf-dist/tex/latex-dev/base/t1cmvtt.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/t1cmvtt.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/t1enc.def b/Master/texmf-dist/tex/latex-dev/base/t1enc.def
index c29801edda7..2e89cf8c7a2 100644
--- a/Master/texmf-dist/tex/latex-dev/base/t1enc.def
+++ b/Master/texmf-dist/tex/latex-dev/base/t1enc.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/t1enc.dfu b/Master/texmf-dist/tex/latex-dev/base/t1enc.dfu
index 33746db2cdb..038d356d0ed 100644
--- a/Master/texmf-dist/tex/latex-dev/base/t1enc.dfu
+++ b/Master/texmf-dist/tex/latex-dev/base/t1enc.dfu
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/t1enc.sty b/Master/texmf-dist/tex/latex-dev/base/t1enc.sty
index 32ea70f6964..cf9bc13627f 100644
--- a/Master/texmf-dist/tex/latex-dev/base/t1enc.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/t1enc.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/t1lcmss.fd b/Master/texmf-dist/tex/latex-dev/base/t1lcmss.fd
index 381edb7cbc8..79ade458a9c 100644
--- a/Master/texmf-dist/tex/latex-dev/base/t1lcmss.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/t1lcmss.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/t1lcmtt.fd b/Master/texmf-dist/tex/latex-dev/base/t1lcmtt.fd
index 383b662d4b0..f77581d5ca4 100644
--- a/Master/texmf-dist/tex/latex-dev/base/t1lcmtt.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/t1lcmtt.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/t2aenc.dfu b/Master/texmf-dist/tex/latex-dev/base/t2aenc.dfu
index 756427532ef..13751e82538 100644
--- a/Master/texmf-dist/tex/latex-dev/base/t2aenc.dfu
+++ b/Master/texmf-dist/tex/latex-dev/base/t2aenc.dfu
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/t2benc.dfu b/Master/texmf-dist/tex/latex-dev/base/t2benc.dfu
index 6b0db2fe6a2..20938396406 100644
--- a/Master/texmf-dist/tex/latex-dev/base/t2benc.dfu
+++ b/Master/texmf-dist/tex/latex-dev/base/t2benc.dfu
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/t2cenc.dfu b/Master/texmf-dist/tex/latex-dev/base/t2cenc.dfu
index 9fff878aaac..5e6e302a4b8 100644
--- a/Master/texmf-dist/tex/latex-dev/base/t2cenc.dfu
+++ b/Master/texmf-dist/tex/latex-dev/base/t2cenc.dfu
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/testpage.tex b/Master/texmf-dist/tex/latex-dev/base/testpage.tex
index d7f468d2411..d2b3919f935 100644
--- a/Master/texmf-dist/tex/latex-dev/base/testpage.tex
+++ b/Master/texmf-dist/tex/latex-dev/base/testpage.tex
@@ -1,6 +1,6 @@
 % \iffalse meta-comment
 %
-% Copyright 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
+% Copyright (C) 1993-2019
 % The LaTeX3 Project and any individual authors listed elsewhere
 % in this file. 
 % 
@@ -13,7 +13,7 @@
 % The latest version of this license is in
 %    https://www.latex-project.org/lppl.txt
 % and version 1.3c or later is part of all distributions of LaTeX 
-% version 2005/12/01 or later.
+% version 2008 or later.
 % 
 % This file has the LPPL maintenance status "maintained".
 % 
diff --git a/Master/texmf-dist/tex/latex-dev/base/textcomp.sty b/Master/texmf-dist/tex/latex-dev/base/textcomp.sty
index 0ebce83c5d3..9c8873496ee 100644
--- a/Master/texmf-dist/tex/latex-dev/base/textcomp.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/textcomp.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/tracefnt.sty b/Master/texmf-dist/tex/latex-dev/base/tracefnt.sty
index 30f9a2c9f95..8b677246787 100644
--- a/Master/texmf-dist/tex/latex-dev/base/tracefnt.sty
+++ b/Master/texmf-dist/tex/latex-dev/base/tracefnt.sty
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2018
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/ts1cmr.fd b/Master/texmf-dist/tex/latex-dev/base/ts1cmr.fd
index 2354d314c0b..e7a5e60bac2 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ts1cmr.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/ts1cmr.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/ts1cmss.fd b/Master/texmf-dist/tex/latex-dev/base/ts1cmss.fd
index d16b5e58d7c..1854d5ec6da 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ts1cmss.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/ts1cmss.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/ts1cmtt.fd b/Master/texmf-dist/tex/latex-dev/base/ts1cmtt.fd
index bfafd4eaaa8..aa6efe46293 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ts1cmtt.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/ts1cmtt.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/ts1cmvtt.fd b/Master/texmf-dist/tex/latex-dev/base/ts1cmvtt.fd
index 2e40854535a..b39cd1d70b7 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ts1cmvtt.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/ts1cmvtt.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/ts1enc.def b/Master/texmf-dist/tex/latex-dev/base/ts1enc.def
index e2d4eb6ff74..7a63a11266b 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ts1enc.def
+++ b/Master/texmf-dist/tex/latex-dev/base/ts1enc.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/ts1enc.dfu b/Master/texmf-dist/tex/latex-dev/base/ts1enc.dfu
index 344ea94cd77..5af0d790b93 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ts1enc.dfu
+++ b/Master/texmf-dist/tex/latex-dev/base/ts1enc.dfu
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/tuenc.def b/Master/texmf-dist/tex/latex-dev/base/tuenc.def
index 33ec8381d42..89357e55c21 100644
--- a/Master/texmf-dist/tex/latex-dev/base/tuenc.def
+++ b/Master/texmf-dist/tex/latex-dev/base/tuenc.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/tulmdh.fd b/Master/texmf-dist/tex/latex-dev/base/tulmdh.fd
index 6d802ccce8c..12852a648d4 100644
--- a/Master/texmf-dist/tex/latex-dev/base/tulmdh.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/tulmdh.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 2016-2017
+%% Copyright (C) 2016-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/tulmr.fd b/Master/texmf-dist/tex/latex-dev/base/tulmr.fd
index 6b3b7a2c647..1a9c6e93a66 100644
--- a/Master/texmf-dist/tex/latex-dev/base/tulmr.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/tulmr.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 2016-2017
+%% Copyright (C) 2016-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/tulmss.fd b/Master/texmf-dist/tex/latex-dev/base/tulmss.fd
index 2269fd7fbad..db2e38ff0f2 100644
--- a/Master/texmf-dist/tex/latex-dev/base/tulmss.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/tulmss.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 2016-2017
+%% Copyright (C) 2016-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/tulmssq.fd b/Master/texmf-dist/tex/latex-dev/base/tulmssq.fd
index b902e006595..6746f66f565 100644
--- a/Master/texmf-dist/tex/latex-dev/base/tulmssq.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/tulmssq.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 2016-2017
+%% Copyright (C) 2016-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/tulmtt.fd b/Master/texmf-dist/tex/latex-dev/base/tulmtt.fd
index 85792214c20..76d07d49d50 100644
--- a/Master/texmf-dist/tex/latex-dev/base/tulmtt.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/tulmtt.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 2016-2017
+%% Copyright (C) 2016-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/tulmvtt.fd b/Master/texmf-dist/tex/latex-dev/base/tulmvtt.fd
index e5f0c0238b9..f064c662a1b 100644
--- a/Master/texmf-dist/tex/latex-dev/base/tulmvtt.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/tulmvtt.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 2016-2017
+%% Copyright (C) 2016-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/ucmr.fd b/Master/texmf-dist/tex/latex-dev/base/ucmr.fd
index 1aaedf0d5c1..6618705fd6f 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ucmr.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/ucmr.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/ucmss.fd b/Master/texmf-dist/tex/latex-dev/base/ucmss.fd
index 83f9e71ba35..cdcc85ffc27 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ucmss.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/ucmss.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/ucmtt.fd b/Master/texmf-dist/tex/latex-dev/base/ucmtt.fd
index 06bd9969ea6..e3e57267479 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ucmtt.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/ucmtt.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/ulasy.fd b/Master/texmf-dist/tex/latex-dev/base/ulasy.fd
index 316b0ef706a..69c25a4c13c 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ulasy.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/ulasy.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/ullasy.fd b/Master/texmf-dist/tex/latex-dev/base/ullasy.fd
index 480c4cc453e..189b91ca121 100644
--- a/Master/texmf-dist/tex/latex-dev/base/ullasy.fd
+++ b/Master/texmf-dist/tex/latex-dev/base/ullasy.fd
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file may only be distributed together with a copy of the LaTeX
 %% base system. You may however distribute the LaTeX base system without
diff --git a/Master/texmf-dist/tex/latex-dev/base/utf8-2018.def b/Master/texmf-dist/tex/latex-dev/base/utf8-2018.def
index 8e942d291a0..576ad88d444 100644
--- a/Master/texmf-dist/tex/latex-dev/base/utf8-2018.def
+++ b/Master/texmf-dist/tex/latex-dev/base/utf8-2018.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/utf8.def b/Master/texmf-dist/tex/latex-dev/base/utf8.def
index bc7a2a2d6a2..ab04f853918 100644
--- a/Master/texmf-dist/tex/latex-dev/base/utf8.def
+++ b/Master/texmf-dist/tex/latex-dev/base/utf8.def
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/utf8enc.dfu b/Master/texmf-dist/tex/latex-dev/base/utf8enc.dfu
index e133767ea4f..51cf9a2fd9e 100644
--- a/Master/texmf-dist/tex/latex-dev/base/utf8enc.dfu
+++ b/Master/texmf-dist/tex/latex-dev/base/utf8enc.dfu
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/base/x2enc.dfu b/Master/texmf-dist/tex/latex-dev/base/x2enc.dfu
index 894ecf850ba..b0cca99b5d4 100644
--- a/Master/texmf-dist/tex/latex-dev/base/x2enc.dfu
+++ b/Master/texmf-dist/tex/latex-dev/base/x2enc.dfu
@@ -13,7 +13,7 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1993-2017
+%% Copyright (C) 1993-2019
 %% The LaTeX3 Project and any individual authors listed elsewhere
 %% in this file.
 %% 
@@ -26,7 +26,7 @@
 %% The latest version of this license is in
 %%    https://www.latex-project.org/lppl.txt
 %% and version 1.3c or later is part of all distributions of LaTeX
-%% version 2005/12/01 or later.
+%% version 2008 or later.
 %% 
 %% This file has the LPPL maintenance status "maintained".
 %% 
diff --git a/Master/texmf-dist/tex/latex-dev/graphics/color.sty b/Master/texmf-dist/tex/latex-dev/graphics/color.sty
index 13cc9eb622b..6d50107b48b 100644
--- a/Master/texmf-dist/tex/latex-dev/graphics/color.sty
+++ b/Master/texmf-dist/tex/latex-dev/graphics/color.sty
@@ -12,7 +12,7 @@
 %% 
 %% 
 %% color.dtx Copyright (C) 1994--1999 David Carlisle
-%%           Copyright (C) 2005--2016 David Carlisle, LaTeX3 Project
+%%           Copyright (C) 2005-2019 David Carlisle, LaTeX3 Project
 %%
 %% This file is part of the Standard LaTeX `Graphics Bundle'.
 %% It may be distributed under the terms of the LaTeX Project Public
diff --git a/Master/texmf-dist/tex/latex-dev/graphics/dvipdf.def b/Master/texmf-dist/tex/latex-dev/graphics/dvipdf.def
index caa7f13c7cb..1e3c06b47ca 100644
--- a/Master/texmf-dist/tex/latex-dev/graphics/dvipdf.def
+++ b/Master/texmf-dist/tex/latex-dev/graphics/dvipdf.def
@@ -8,7 +8,7 @@
 %% 
 %% drivers.dtx Copyright (C) 1994      David Carlisle Sebastian Rahtz
 %%             Copyright (C) 1995 1996 1997 1998 1999 David Carlisle
-%%             Copyright (C) 2000--2016 David Carlisle, LaTeX3 Project
+%%             Copyright (C) 2000-2019 David Carlisle, LaTeX3 Project
 %%
 %% This file is part of the Standard LaTeX `Graphics Bundle'.
 %% It may be distributed under the terms of the LaTeX Project Public
diff --git a/Master/texmf-dist/tex/latex-dev/graphics/dvipsnam.def b/Master/texmf-dist/tex/latex-dev/graphics/dvipsnam.def
index 4cbfe9c6096..cd86f75aec8 100644
--- a/Master/texmf-dist/tex/latex-dev/graphics/dvipsnam.def
+++ b/Master/texmf-dist/tex/latex-dev/graphics/dvipsnam.def
@@ -8,7 +8,7 @@
 %% 
 %% drivers.dtx Copyright (C) 1994      David Carlisle Sebastian Rahtz
 %%             Copyright (C) 1995 1996 1997 1998 1999 David Carlisle
-%%             Copyright (C) 2000--2016 David Carlisle, LaTeX3 Project
+%%             Copyright (C) 2000-2019 David Carlisle, LaTeX3 Project
 %%
 %% This file is part of the Standard LaTeX `Graphics Bundle'.
 %% It may be distributed under the terms of the LaTeX Project Public
diff --git a/Master/texmf-dist/tex/latex-dev/graphics/dvipsone.def b/Master/texmf-dist/tex/latex-dev/graphics/dvipsone.def
index 62bc97b85bc..98334f3a130 100644
--- a/Master/texmf-dist/tex/latex-dev/graphics/dvipsone.def
+++ b/Master/texmf-dist/tex/latex-dev/graphics/dvipsone.def
@@ -8,7 +8,7 @@
 %% 
 %% drivers.dtx Copyright (C) 1994      David Carlisle Sebastian Rahtz
 %%             Copyright (C) 1995 1996 1997 1998 1999 David Carlisle
-%%             Copyright (C) 2000--2016 David Carlisle, LaTeX3 Project
+%%             Copyright (C) 2000-2019 David Carlisle, LaTeX3 Project
 %%
 %% This file is part of the Standard LaTeX `Graphics Bundle'.
 %% It may be distributed under the terms of the LaTeX Project Public
diff --git a/Master/texmf-dist/tex/latex-dev/graphics/dviwin.def b/Master/texmf-dist/tex/latex-dev/graphics/dviwin.def
index 46f9feab4fe..5a636eafa9f 100644
--- a/Master/texmf-dist/tex/latex-dev/graphics/dviwin.def
+++ b/Master/texmf-dist/tex/latex-dev/graphics/dviwin.def
@@ -8,7 +8,7 @@
 %% 
 %% drivers.dtx Copyright (C) 1994      David Carlisle Sebastian Rahtz
 %%             Copyright (C) 1995 1996 1997 1998 1999 David Carlisle
-%%             Copyright (C) 2000--2016 David Carlisle, LaTeX3 Project
+%%             Copyright (C) 2000-2019 David Carlisle, LaTeX3 Project
 %%
 %% This file is part of the Standard LaTeX `Graphics Bundle'.
 %% It may be distributed under the terms of the LaTeX Project Public
diff --git a/Master/texmf-dist/tex/latex-dev/graphics/emtex.def b/Master/texmf-dist/tex/latex-dev/graphics/emtex.def
index 33700992240..4a929483b6f 100644
--- a/Master/texmf-dist/tex/latex-dev/graphics/emtex.def
+++ b/Master/texmf-dist/tex/latex-dev/graphics/emtex.def
@@ -8,7 +8,7 @@
 %% 
 %% drivers.dtx Copyright (C) 1994      David Carlisle Sebastian Rahtz
 %%             Copyright (C) 1995 1996 1997 1998 1999 David Carlisle
-%%             Copyright (C) 2000--2016 David Carlisle, LaTeX3 Project
+%%             Copyright (C) 2000-2019 David Carlisle, LaTeX3 Project
 %%
 %% This file is part of the Standard LaTeX `Graphics Bundle'.
 %% It may be distributed under the terms of the LaTeX Project Public
diff --git a/Master/texmf-dist/tex/latex-dev/graphics/epsfig.sty b/Master/texmf-dist/tex/latex-dev/graphics/epsfig.sty
index 527343e9333..d117fbfe8cc 100644
--- a/Master/texmf-dist/tex/latex-dev/graphics/epsfig.sty
+++ b/Master/texmf-dist/tex/latex-dev/graphics/epsfig.sty
@@ -12,7 +12,7 @@
 %% 
 %% 
 %% epsfig.dtx Copyright (C) 1994-1996 1999 Sebastian Rahtz
-%%            Copyright (C) 2000--2015,2017 David Carlisle, LaTeX3 Project
+%%            Copyright (C) 2000-2019 David Carlisle, LaTeX3 Project
 %%
 %% This file is part of the Standard LaTeX `Graphics Bundle'.
 %% It may be distributed under the terms of the LaTeX Project Public
diff --git a/Master/texmf-dist/tex/latex-dev/graphics/graphicx.sty b/Master/texmf-dist/tex/latex-dev/graphics/graphicx.sty
index c843839f459..d41006e2609 100644
--- a/Master/texmf-dist/tex/latex-dev/graphics/graphicx.sty
+++ b/Master/texmf-dist/tex/latex-dev/graphics/graphicx.sty
@@ -12,7 +12,7 @@
 %% 
 %% 
 %% graphicx.dtx Copyright (C) 1994      David Carlisle Sebastian Rahtz
-%%              Copyright (C) 1995--2015,2017 David Carlisle, LaTeX3 Project
+%%              Copyright (C) 1995-2019 David Carlisle, LaTeX3 Project
 %%
 %% This file is part of the Standard LaTeX `Graphics Bundle'.
 %% It may be distributed under the terms of the LaTeX Project Public
diff --git a/Master/texmf-dist/tex/latex-dev/graphics/keyval.sty b/Master/texmf-dist/tex/latex-dev/graphics/keyval.sty
index 9fff54db0ca..ad522ba6f02 100644
--- a/Master/texmf-dist/tex/latex-dev/graphics/keyval.sty
+++ b/Master/texmf-dist/tex/latex-dev/graphics/keyval.sty
@@ -12,7 +12,7 @@
 %% 
 %% 
 %% keyval.dtx Copyright (C) 1993 1994 1995 1997 1998 1999 David Carlisle
-%%            Copyright (C) 2000--2015 David Carlisle, LaTeX3 Project
+%%            Copyright (C) 2000-2019 David Carlisle, LaTeX3 Project
 %%
 %% This file is part of the Standard LaTeX `Graphics Bundle'.
 %% It may be distributed under the terms of the LaTeX Project Public
diff --git a/Master/texmf-dist/tex/latex-dev/graphics/lscape.sty b/Master/texmf-dist/tex/latex-dev/graphics/lscape.sty
index a1f9ac359d9..b5bae157ae1 100644
--- a/Master/texmf-dist/tex/latex-dev/graphics/lscape.sty
+++ b/Master/texmf-dist/tex/latex-dev/graphics/lscape.sty
@@ -12,7 +12,7 @@
 %% 
 %% 
 %% lscape.dtx Copyright (C) 1994 1999-2000 David Carlisle
-%%            Copyright (C) 2000--2015 David Carlisle, LaTeX3 Project
+%%            Copyright (C) 2000-2019 David Carlisle, LaTeX3 Project
 %%
 %% This file is part of the Standard LaTeX `Graphics Bundle'.
 %% It may be distributed under the terms of the LaTeX Project Public
diff --git a/Master/texmf-dist/tex/latex-dev/graphics/pctex32.def b/Master/texmf-dist/tex/latex-dev/graphics/pctex32.def
index 885b006623f..77ee66620e6 100644
--- a/Master/texmf-dist/tex/latex-dev/graphics/pctex32.def
+++ b/Master/texmf-dist/tex/latex-dev/graphics/pctex32.def
@@ -8,7 +8,7 @@
 %% 
 %% drivers.dtx Copyright (C) 1994      David Carlisle Sebastian Rahtz
 %%             Copyright (C) 1995 1996 1997 1998 1999 David Carlisle
-%%             Copyright (C) 2000--2016 David Carlisle, LaTeX3 Project
+%%             Copyright (C) 2000-2019 David Carlisle, LaTeX3 Project
 %%
 %% This file is part of the Standard LaTeX `Graphics Bundle'.
 %% It may be distributed under the terms of the LaTeX Project Public
diff --git a/Master/texmf-dist/tex/latex-dev/graphics/pctexhp.def b/Master/texmf-dist/tex/latex-dev/graphics/pctexhp.def
index b9d05fa1e94..14987ca894f 100644
--- a/Master/texmf-dist/tex/latex-dev/graphics/pctexhp.def
+++ b/Master/texmf-dist/tex/latex-dev/graphics/pctexhp.def
@@ -8,7 +8,7 @@
 %% 
 %% drivers.dtx Copyright (C) 1994      David Carlisle Sebastian Rahtz
 %%             Copyright (C) 1995 1996 1997 1998 1999 David Carlisle
-%%             Copyright (C) 2000--2016 David Carlisle, LaTeX3 Project
+%%             Copyright (C) 2000-2019 David Carlisle, LaTeX3 Project
 %%
 %% This file is part of the Standard LaTeX `Graphics Bundle'.
 %% It may be distributed under the terms of the LaTeX Project Public
diff --git a/Master/texmf-dist/tex/latex-dev/graphics/pctexps.def b/Master/texmf-dist/tex/latex-dev/graphics/pctexps.def
index 13161ad409b..75a82ab3e35 100644
--- a/Master/texmf-dist/tex/latex-dev/graphics/pctexps.def
+++ b/Master/texmf-dist/tex/latex-dev/graphics/pctexps.def
@@ -8,7 +8,7 @@
 %% 
 %% drivers.dtx Copyright (C) 1994      David Carlisle Sebastian Rahtz
 %%             Copyright (C) 1995 1996 1997 1998 1999 David Carlisle
-%%             Copyright (C) 2000--2016 David Carlisle, LaTeX3 Project
+%%             Copyright (C) 2000-2019 David Carlisle, LaTeX3 Project
 %%
 %% This file is part of the Standard LaTeX `Graphics Bundle'.
 %% It may be distributed under the terms of the LaTeX Project Public
diff --git a/Master/texmf-dist/tex/latex-dev/graphics/pctexwin.def b/Master/texmf-dist/tex/latex-dev/graphics/pctexwin.def
index 862a03c082c..35964af3c55 100644
--- a/Master/texmf-dist/tex/latex-dev/graphics/pctexwin.def
+++ b/Master/texmf-dist/tex/latex-dev/graphics/pctexwin.def
@@ -8,7 +8,7 @@
 %% 
 %% drivers.dtx Copyright (C) 1994      David Carlisle Sebastian Rahtz
 %%             Copyright (C) 1995 1996 1997 1998 1999 David Carlisle
-%%             Copyright (C) 2000--2016 David Carlisle, LaTeX3 Project
+%%             Copyright (C) 2000-2019 David Carlisle, LaTeX3 Project
 %%
 %% This file is part of the Standard LaTeX `Graphics Bundle'.
 %% It may be distributed under the terms of the LaTeX Project Public
diff --git a/Master/texmf-dist/tex/latex-dev/graphics/rotating.sty b/Master/texmf-dist/tex/latex-dev/graphics/rotating.sty
index ea2289b0df4..ded37b873cd 100644
--- a/Master/texmf-dist/tex/latex-dev/graphics/rotating.sty
+++ b/Master/texmf-dist/tex/latex-dev/graphics/rotating.sty
@@ -11,9 +11,9 @@
 %% (but please observe conditions on bug reports sent to that address!)
 %% 
 %% 
-%% Copyright 1995--1999 Sebastian Rahtz and Leonor Barroca
-%% Copyright 2001--2003,2007--2009 Robin Fairbairns
-%% Copyright 2016  LaTeX3 Project
+%% Copyright (C) 1995--1999 Sebastian Rahtz and Leonor Barroca
+%% Copyright (C) 2001--2003,2007--2009 Robin Fairbairns
+%% Copyright (C) 2016-2019 LaTeX3 Project
 \NeedsTeXFormat{LaTeX2e}
 \ProvidesPackage{rotating}%
     [2016/08/11 v2.16d
diff --git a/Master/texmf-dist/tex/latex-dev/graphics/tcidvi.def b/Master/texmf-dist/tex/latex-dev/graphics/tcidvi.def
index 9e92ebf51b2..a6624d40023 100644
--- a/Master/texmf-dist/tex/latex-dev/graphics/tcidvi.def
+++ b/Master/texmf-dist/tex/latex-dev/graphics/tcidvi.def
@@ -8,7 +8,7 @@
 %% 
 %% drivers.dtx Copyright (C) 1994      David Carlisle Sebastian Rahtz
 %%             Copyright (C) 1995 1996 1997 1998 1999 David Carlisle
-%%             Copyright (C) 2000--2016 David Carlisle, LaTeX3 Project
+%%             Copyright (C) 2000-2019 David Carlisle, LaTeX3 Project
 %%
 %% This file is part of the Standard LaTeX `Graphics Bundle'.
 %% It may be distributed under the terms of the LaTeX Project Public
diff --git a/Master/texmf-dist/tex/latex-dev/graphics/trig.sty b/Master/texmf-dist/tex/latex-dev/graphics/trig.sty
index 74dd94e8566..bb733b6654c 100644
--- a/Master/texmf-dist/tex/latex-dev/graphics/trig.sty
+++ b/Master/texmf-dist/tex/latex-dev/graphics/trig.sty
@@ -12,7 +12,7 @@
 %% 
 %% 
 %% File: trig.dtx Copyright (C) 1993 1994 1995 1996 1997 1999 David Carlisle
-%%                Copyright (C) 2000--2015 David Carlisle, LaTeX3 Project
+%%                Copyright (C) 2000-2019 David Carlisle, LaTeX3 Project
 %%
 %% This file is part of the Standard LaTeX `Graphics Bundle'.
 %% It may be distributed under the terms of the LaTeX Project Public
diff --git a/Master/texmf-dist/tex/latex-dev/graphics/truetex.def b/Master/texmf-dist/tex/latex-dev/graphics/truetex.def
index bd0acc49611..99b228aeb21 100644
--- a/Master/texmf-dist/tex/latex-dev/graphics/truetex.def
+++ b/Master/texmf-dist/tex/latex-dev/graphics/truetex.def
@@ -8,7 +8,7 @@
 %% 
 %% drivers.dtx Copyright (C) 1994      David Carlisle Sebastian Rahtz
 %%             Copyright (C) 1995 1996 1997 1998 1999 David Carlisle
-%%             Copyright (C) 2000--2016 David Carlisle, LaTeX3 Project
+%%             Copyright (C) 2000-2019 David Carlisle, LaTeX3 Project
 %%
 %% This file is part of the Standard LaTeX `Graphics Bundle'.
 %% It may be distributed under the terms of the LaTeX Project Public
diff --git a/Master/texmf-dist/tex/latex-dev/tools/.tex b/Master/texmf-dist/tex/latex-dev/tools/.tex
new file mode 100644
index 00000000000..be8f5d46019
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/.tex
@@ -0,0 +1,41 @@
+%%
+%% This is file `.tex',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% fileerr.dtx  (with options: `return')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+ \message{File ignored}
+\endinput
+%%
+%% End of file `.tex'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/afterpage.sty b/Master/texmf-dist/tex/latex-dev/tools/afterpage.sty
new file mode 100644
index 00000000000..0c3fb171ac8
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/afterpage.sty
@@ -0,0 +1,136 @@
+%%
+%% This is file `afterpage.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% afterpage.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% File: afterpage.dtx Copyright (C) 1994 1994 1995 David Carlisle
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{afterpage}
+         [2014/10/28 v1.08 After-Page Package (DPC)]
+\newtoks\AP@output
+\global\AP@output\expandafter{\the\output}
+\newbox\AP@partial
+\newbox\AP@footins
+\def\AP@savetop{%
+  \ifvmode
+    \let\AP@noindent\empty
+  \else\ifhmode
+    \setbox\z@\lastbox
+    \edef\AP@noindent
+      {{\everypar{}\ifvoid\z@\noindent\else\indent\fi}}%
+    \par
+  \else
+    \abovedisplayshortskip\z@\abovedisplayskip\z@
+    \belowdisplayshortskip\z@\belowdisplayskip\z@
+    \xdef\AP@disp{%
+      \predisplaysize\the\predisplaysize
+      \prevgraf\the\prevgraf\relax}%
+    $$\vskip-\baselineskip\vskip-\parskip
+    \edef\AP@noindent{%
+      \toks@{\the\everydisplay}\everydisplay{}%
+      {\everypar{}\noindent}$$\AP@disp\aftergroup\noexpand\AP@ed}%
+  \fi\fi
+  \begingroup
+  \nointerlineskip\null
+    \output{%
+      \global\setbox\AP@partial\vbox{%
+        \unvbox\@cclv
+         \global\setbox\@ne\lastbox}%
+       \global\setbox\AP@footins\box\footins}%
+  \eject
+  \endgroup}
+\let\AP@\relax
+\def\AP@ed{\everydisplay\expandafter{\the\toks@}\ignorespaces}
+\def\AP@@{%
+  \AP@savetop
+  \global\expandafter\let\expandafter\AP@\expandafter\relax\AP@
+  \par
+   \addboxcontents\AP@partial
+  \ifvoid\AP@footins\else
+         \insert\footins{\unvbox\AP@footins}\fi
+  \AP@noindent}
+\long\def\afterpage#1{%
+  \ifx\AP@\relax
+    \gdef\AP@{{#1\par}}%
+    \global\output{%
+      \the\AP@output
+      \ifnum\outputpenalty>-\@Mi
+        \global\output\expandafter{\the\AP@output}%
+        \aftergroup\AP@@
+      \fi}%
+  \else
+    \expandafter\gdef\expandafter\AP@\expandafter{\AP@{#1\par}}%
+  \fi}
+\let\AP@clearpage\clearpage
+\def\clearpage{%
+  \ifx\AP@\relax
+    \AP@clearpage
+  \else
+    \global\output\expandafter{\the\AP@output}%
+    \AP@clearpage
+    \global\expandafter\let\expandafter\AP@\expandafter\relax
+    \expandafter\expandafter\AP@
+  \fi}
+\let\AP@enddocument\enddocument
+\def\enddocument{%
+  \ifx\AP@\relax\else
+    \global\output\expandafter{\the\AP@output}%
+    \AP@clearpage
+    \global\expandafter\let\expandafter\AP@\expandafter\relax
+    \expandafter\expandafter\AP@
+  \fi
+    \AP@enddocument}
+
+\def\addboxcontents#1{{%
+  \splittopskip\z@
+  \splitmaxdepth\maxdimen
+  \setbox#1\vbox{\break\unvbox#1}%
+  \setbox\z@\vsplit#1to\z@
+  \setbox#1\vbox{\break\unvbox#1}%
+  \skip@\ht#1%
+  \splittopskip\vsize
+  \setbox\z@\vsplit#1to\z@
+  \advance\skip@-\ht#1%
+  \skip\tw@\skip@
+  \advance\skip@\splittopskip
+  \advance\skip@\prevdepth
+  \advance\skip@-\baselineskip
+  \advance\skip\tw@\ifdim-\skip@<\lineskiplimit\lineskip\else-\skip@\fi
+  \vskip\skip\tw@
+  \global\dimen@i\dp#1%
+  \unvbox#1}%
+  \prevdepth\dimen@i}
+\endinput
+%%
+%% End of file `afterpage.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/array-2016-10-06.sty b/Master/texmf-dist/tex/latex-dev/tools/array-2016-10-06.sty
new file mode 100644
index 00000000000..0b619362d47
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/array-2016-10-06.sty
@@ -0,0 +1,341 @@
+%%
+%% This is an old release of `array.sty',
+%% 
+%% Copyright 1993-2016
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    http://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% 
+%% Package `array' to use with LaTeX 2e
+%% Copyright (C) 1989-1998 Frank Mittelbach, all rights reserved.
+\NeedsTeXFormat{LaTeX2e}[1995/06/01]
+\ProvidesPackage{array}
+         [2016/10/06 v2.4d Tabular extension package (FMi)]
+%%
+
+\def\@addtopreamble#1{\xdef\@preamble{\@preamble #1}}
+\def\@testpach{\@chclass
+ \ifnum \@lastchclass=6 \@ne \@chnum \@ne \else
+  \ifnum \@lastchclass=7 5 \else
+   \ifnum \@lastchclass=8 \tw@ \else
+    \ifnum \@lastchclass=9 \thr@@
+   \else \z@
+   \ifnum \@lastchclass = 10 \else
+   \edef\@nextchar{\expandafter\string\@nextchar}%
+   \@chnum
+   \if \@nextchar c\z@ \else
+    \if \@nextchar l\@ne \else
+     \if \@nextchar r\tw@ \else
+   \z@ \@chclass
+   \if\@nextchar |\@ne \else
+    \if \@nextchar !6 \else
+     \if \@nextchar @7 \else
+      \if \@nextchar <8 \else
+       \if \@nextchar >9 \else
+  10
+  \@chnum
+  \if \@nextchar m\thr@@\else
+   \if \@nextchar p4 \else
+    \if \@nextchar b5 \else
+   \z@ \@chclass \z@ \@preamerr \z@ \fi \fi \fi \fi
+   \fi \fi  \fi  \fi  \fi  \fi  \fi \fi \fi \fi \fi \fi}
+\def\@xexpast#1*#2#3#4\@@{%
+   \@tempcnta #2
+   \toks@={#1}\@temptokena={#3}%
+   \let\the@toksz\relax \let\the@toks\relax
+   \def\@tempa{\the@toksz}%
+   \ifnum\@tempcnta >0 \@whilenum\@tempcnta >0\do
+     {\edef\@tempa{\@tempa\the@toks}\advance \@tempcnta \m@ne}%
+       \let \@tempb \@xexpast \else
+       \let \@tempb \@xexnoop \fi
+   \def\the@toksz{\the\toks@}\def\the@toks{\the\@temptokena}%
+   \edef\@tempa{\@tempa}%
+   \expandafter \@tempb \@tempa #4\@@}
+\def\prepnext@tok{\advance \count@ \@ne
+   \toks\count@{}}
+\def\save@decl{\toks\count@ \expandafter{\@nextchar}}
+\def\insert@column{%
+   \the@toks \the \@tempcnta
+   \ignorespaces \@sharp \unskip
+   \the@toks \the \count@ \relax}
+\newdimen\col@sep
+\def\@acol{\@addtopreamble{\hskip\col@sep}}
+\def\@mkpream#1{\gdef\@preamble{}\@lastchclass 4 \@firstamptrue
+   \let\@sharp\relax \let\@startpbox\relax \let\@endpbox\relax
+   \@xexpast #1*0x\@@
+   \count@\m@ne
+   \let\the@toks\relax
+   \prepnext@tok
+   \expandafter \@tfor \expandafter \@nextchar
+    \expandafter :\expandafter =\@tempa \do
+   {\@testpach
+   \ifcase \@chclass \@classz \or \@classi \or \@classii
+     \or \save@decl \or \or \@classv \or \@classvi
+     \or \@classvii \or \@classviii  \or \@classix
+     \or \@classx \fi
+   \@lastchclass\@chclass}%
+   \ifcase\@lastchclass
+   \@acol \or
+   \or
+   \@acol \or
+   \@preamerr \thr@@ \or
+   \@preamerr \tw@ \@addtopreamble\@sharp \or
+   \or
+   \else  \@preamerr \@ne \fi
+   \def\the@toks{\the\toks}}
+\def\@classx{%
+  \ifcase \@lastchclass
+  \@acolampacol \or
+  \@addamp \@acol \or
+  \@acolampacol \or
+  \or
+  \@acol \@firstampfalse \or
+  \@addamp
+  \fi}
+\def\@classz{\@classx
+   \@tempcnta \count@
+   \prepnext@tok
+   \@addtopreamble{\ifcase \@chnum
+      \hfil
+      \d@llarbegin
+      \insert@column
+      \d@llarend \hfil \or
+      \hskip1sp\d@llarbegin \insert@column \d@llarend \hfil \or
+      \hfil\hskip1sp\d@llarbegin \insert@column \d@llarend \or
+   $\vcenter
+   \@startpbox{\@nextchar}\insert@column \@endpbox $\or
+   \vtop \@startpbox{\@nextchar}\insert@column \@endpbox \or
+   \vbox \@startpbox{\@nextchar}\insert@column \@endpbox
+  \fi}\prepnext@tok}
+\def\@classix{\ifnum \@lastchclass = \thr@@
+       \@preamerr \thr@@ \fi
+       \@classx}
+\def\@classviii{\ifnum \@lastchclass >\z@
+      \@preamerr 4\@chclass 6 \@classvi \fi}
+\def\@arrayrule{\@addtopreamble \vline}
+\def\@classvii{\ifnum \@lastchclass = \thr@@
+   \@preamerr \thr@@ \fi}
+\def\@classvi{\ifcase \@lastchclass
+      \@acol \or
+      \@addtopreamble{\hskip \doublerulesep}\or
+      \@acol \or
+      \@classvii
+      \fi}
+\def\@classii{\advance \count@ \m@ne
+   \save@decl\prepnext@tok}
+\def\@classv{\save@decl
+   \@addtopreamble{\d@llarbegin\the@toks\the\count@\relax\d@llarend}%
+   \prepnext@tok}
+\def\@classi{\@classvi
+   \ifcase \@chnum \@arrayrule \or
+      \@classv \fi}
+\def\@startpbox#1{\bgroup
+  \setlength\hsize{#1}\@arrayparboxrestore
+   \everypar{%
+      \vrule \@height \ht\@arstrutbox \@width \z@
+      \everypar{}}%
+   }
+\def\@endpbox{\@finalstrut\@arstrutbox \egroup\hfil}
+\def\@array[#1]#2{%
+  \@tempdima \ht \strutbox
+  \advance \@tempdima by\extrarowheight
+  \setbox \@arstrutbox \hbox{\vrule
+             \@height \arraystretch \@tempdima
+             \@depth \arraystretch \dp \strutbox
+             \@width \z@}%
+  \begingroup
+  \@mkpream{#2}%
+  \xdef\@preamble{\noexpand \ialign \@halignto
+                  \bgroup \@arstrut \@preamble
+                          \tabskip \z@ \cr}%
+  \endgroup
+  \@arrayleft
+  \if #1t\vtop \else \if#1b\vbox \else \vcenter \fi \fi
+  \bgroup
+  \let \@sharp ##\let \protect \relax
+  \lineskip \z@
+  \baselineskip \z@
+  \m@th
+  \let\\\@arraycr \let\tabularnewline\\\let\par\@empty \@preamble}
+\def\arraybackslash{\let\\\tabularnewline}
+\newdimen \extrarowheight
+\extrarowheight=0pt
+\def\@arstrut{\unhcopy\@arstrutbox}
+\def\@arraycr{\relax\iffalse{\fi\ifnum 0=`}\fi
+  \@ifstar \@xarraycr \@xarraycr}
+\def\@xarraycr{\@ifnextchar [%
+  \@argarraycr {\ifnum 0=`{}\fi\cr}}
+\def\@argarraycr[#1]{\ifnum0=`{}\fi\ifdim #1>\z@
+  \expandafter\@xargarraycr\else
+  \expandafter\@yargarraycr\fi{#1}}
+\def\@xargarraycr#1{\unskip
+  \@tempdima #1\advance\@tempdima \dp\@arstrutbox
+  \vrule \@depth\@tempdima \@width\z@ \cr}
+\def\@yargarraycr#1{\cr\noalign{\vskip #1}}
+\long\def\multicolumn#1#2#3{%
+   \multispan{#1}\begingroup
+   \def\@addamp{\if@firstamp \@firstampfalse \else
+                \@preamerr 5\fi}%
+   \@mkpream{#2}\@addtopreamble\@empty
+   \endgroup
+   \def\@sharp{#3}%
+   \@arstrut \@preamble
+   \null
+   \ignorespaces}
+\let\d@llarbegin\begingroup
+\let\d@llarend\endgroup
+\def\array{\col@sep\arraycolsep
+  \def\d@llarbegin{$}\let\d@llarend\d@llarbegin\def\@halignto{}%
+  \@tabarray}
+\def\@tabarray{\@ifnextchar[{\@array}{\@array[c]}}
+\def\tabular{\def\@halignto{}\@tabular}
+\expandafter\def\csname tabular*\endcsname#1{%
+       \setlength\dimen@{#1}%
+       \edef\@halignto{to\the\dimen@}\@tabular}
+\def\@tabular{%
+  \leavevmode
+  \hbox \bgroup $\col@sep\tabcolsep \let\d@llarbegin\begingroup
+                                    \let\d@llarend\endgroup
+  \@tabarray}
+\def\endarray{\crcr \egroup \egroup \gdef\@preamble{}}
+\def\endtabular{\endarray $\egroup}
+\expandafter\let\csname endtabular*\endcsname=\endtabular
+\let\@ampacol=\relax        \let\@expast=\relax
+\let\@arrayclassiv=\relax   \let\@arrayclassz=\relax
+\let\@tabclassiv=\relax     \let\@tabclassz=\relax
+\let\@arrayacol=\relax      \let\@tabacol=\relax
+\let\@tabularcr=\relax      \let\@@endpbox=\relax
+\let\@argtabularcr=\relax   \let\@xtabularcr=\relax
+\def\@preamerr#1{\def\@tempd{{..} at wrong position: }%
+   \PackageError{array}{%
+   \ifcase #1 Illegal pream-token (\@nextchar): `c' used\or %0
+    Missing arg: token ignored\or                           %1
+    Empty preamble: `l' used\or                             %2
+    >\@tempd token ignored\or                               %3
+    <\@tempd changed to !{..}\or                            %4
+    Only one column-spec. allowed.\fi}\@ehc}                %5
+\def\newcolumntype#1{%
+  \edef\NC@char{\string#1}%
+  \@ifundefined{NC@find@\NC@char}%
+    {\@tfor\next:=<>clrmbp@!|\do{\if\noexpand\next\NC@char
+        \PackageWarning{array}%
+                       {Redefining primitive column \NC@char}\fi}%
+     \NC@list\expandafter{\the\NC@list\NC@do#1}}%
+    {\PackageWarning{array}{Column \NC@char\space is already defined}}%
+  \@namedef{NC@find@\NC@char}##1#1{\NC@{##1}}%
+  \@ifnextchar[{\newcol@{\NC@char}}{\newcol@{\NC@char}[0]}}
+\def\newcol@#1[#2]#3{\expandafter\@reargdef
+     \csname NC@rewrite@#1\endcsname[#2]{\NC@find#3}}
+\def\NC@#1{%
+  \@temptokena\expandafter{\the\@temptokena#1}\futurelet\next\NC@ifend}
+\def\NC@ifend{%
+  \ifx\next\relax
+    \else\@tempswatrue\expandafter\NC@rewrite\fi}
+\def\NC@do#1{%
+  \expandafter\let\expandafter\NC@rewrite
+    \csname NC@rewrite@\string#1\endcsname
+  \expandafter\let\expandafter\NC@find
+    \csname NC@find@\string#1\endcsname
+  \expandafter\@temptokena\expandafter{\expandafter}%
+        \expandafter\NC@find\the\@temptokena#1\relax}
+\def\showcols{{\def\NC@do##1{\let\NC@do\NC@show}\the\NC@list}}
+\def\NC@show#1{%
+  \typeout{Column #1\expandafter\expandafter\expandafter\NC@strip
+  \expandafter\meaning\csname NC@rewrite@#1\endcsname\@@}}
+\def\NC@strip#1:#2->#3 #4\@@{#2 -> #4}
+\newtoks\NC@list
+\newcolumntype{*}[2]{}
+\long\@namedef{NC@rewrite@*}#1#2{%
+  \count@#1\relax
+  \loop
+  \ifnum\count@>\z@
+  \advance\count@\m@ne
+  \@temptokena\expandafter{\the\@temptokena#2}%
+  \repeat
+  \NC@find}
+\let\@xexpast\relax
+\let\@xexnoop\relax
+\def\save@decl{\toks \count@ = \expandafter\expandafter\expandafter
+                  {\expandafter\@nextchar\the\toks\count@}}
+\def\@mkpream#1{\gdef\@preamble{}\@lastchclass 4 \@firstamptrue
+   \let\@sharp\relax \let\@startpbox\relax \let\@endpbox\relax
+   \@temptokena{#1}\@tempswatrue
+   \@whilesw\if@tempswa\fi{\@tempswafalse\the\NC@list}%
+   \count@\m@ne
+   \let\the@toks\relax
+   \prepnext@tok
+   \expandafter \@tfor \expandafter \@nextchar
+    \expandafter :\expandafter =\the\@temptokena \do
+   {\@testpach
+   \ifcase \@chclass \@classz \or \@classi \or \@classii
+     \or \save@decl \or \or \@classv \or \@classvi
+     \or \@classvii \or \@classviii
+     \or \@classx
+     \or \@classx \fi
+   \@lastchclass\@chclass}%
+   \ifcase\@lastchclass
+   \@acol \or
+   \or
+   \@acol \or
+   \@preamerr \thr@@ \or
+   \@preamerr \tw@ \@addtopreamble\@sharp \or
+   \or
+   \else  \@preamerr \@ne \fi
+   \def\the@toks{\the\toks}}
+\let\@classix\relax
+\def\@classviii{\ifnum \@lastchclass >\z@\ifnum\@lastchclass=\tw@\else
+      \@preamerr 4\@chclass 6 \@classvi \fi\fi}
+\def\@classv{\save@decl
+   \expandafter\NC@ecs\@nextchar\extracolsep{}\extracolsep\@@@
+   \@addtopreamble{\d@llarbegin\the@toks\the\count@\relax\d@llarend}%
+   \prepnext@tok}
+\def\NC@ecs#1\extracolsep#2#3\extracolsep#4\@@@{\def\@tempa{#2}%
+  \ifx\@tempa\@empty\else\toks\count@={#1\tabskip#2\relax#3}\fi}
+\def\@tabarray{\@ifnextchar[{\@@array}{\@@array[c]}}
+\let\@@array\@array
+\def\endarray{\crcr \egroup \egroup \@arrayright \gdef\@preamble{}}
+\let\@arrayleft\@empty
+\let\@arrayright\@empty
+\newlength{\extratabsurround}
+\setlength{\extratabsurround}{2pt}
+\newlength{\backup@length}
+\newcommand{\firsthline}{%
+  \multicolumn1c{%
+    \global\backup@length\ht\@arstrutbox
+    \global\advance\backup@length\dp\@arstrutbox
+    \global\advance\backup@length\arrayrulewidth
+     \raise\extratabsurround\copy\@arstrutbox
+    }\\[-\backup@length]\hline
+}
+\newcommand{\lasthline}{\hline\multicolumn1c{%
+    \global\backup@length2\ht\@arstrutbox
+    \global\advance\backup@length2\dp\@arstrutbox
+    \global\advance\backup@length\arrayrulewidth
+    }\\[-\backup@length]%
+    \multicolumn1c{%
+       \lower\extratabsurround\copy\@arstrutbox
+       }%
+}
+\CheckCommand*\@xhline{\ifx\reserved@a\hline
+               \vskip\doublerulesep
+               \vskip-\arrayrulewidth
+             \fi
+      \ifnum0=`{\fi}}
+\renewcommand*\@xhline{\ifx\reserved@a\hline
+               \vskip\doublerulesep
+             \fi
+      \ifnum0=`{\fi}}
+\endinput
+%%
+%% End of file `array.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/array.sty b/Master/texmf-dist/tex/latex-dev/tools/array.sty
new file mode 100644
index 00000000000..87aedd3343d
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/array.sty
@@ -0,0 +1,374 @@
+%%
+%% This is file `array.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% array.dtx  (with options: `package,ncols')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% Package `array' to use with LaTeX 2e
+%% Copyright (C) 1989-1998 Frank Mittelbach, all rights reserved.
+\NeedsTeXFormat{LaTeX2e}[1995/06/01]
+\providecommand\DeclareRelease[3]{}
+\providecommand\DeclareCurrentRelease[2]{}
+
+\DeclareRelease{}{2016-10-06}{array-2016-10-06.sty}
+\DeclareCurrentRelease{}{2019-10-01}
+
+\ProvidesPackage{array}
+         [2019/08/31 v2.4l Tabular extension package (FMi)]
+%%
+
+\def\@addtopreamble#1{\xdef\@preamble{\@preamble #1}}
+\def\@testpach{\@chclass
+ \ifnum \@lastchclass=6 \@ne \@chnum \@ne \else
+  \ifnum \@lastchclass=7 5 \else
+   \ifnum \@lastchclass=8 \tw@ \else
+    \ifnum \@lastchclass=9 \thr@@
+   \else \z@
+   \ifnum \@lastchclass = 10 \else
+   \edef\@nextchar{\expandafter\string\@nextchar}%
+   \@chnum
+   \if \@nextchar c\z@ \else
+    \if \@nextchar l\@ne \else
+     \if \@nextchar r\tw@ \else
+   \z@ \@chclass
+   \if\@nextchar |\@ne \else
+    \if \@nextchar !6 \else
+     \if \@nextchar @7 \else
+      \if \@nextchar <8 \else
+       \if \@nextchar >9 \else
+  10
+  \@chnum
+  \if \@nextchar m\thr@@\else
+   \if \@nextchar p4 \else
+    \if \@nextchar b5 \else
+   \z@ \@chclass \z@ \@preamerr \z@ \fi \fi \fi \fi
+   \fi \fi  \fi  \fi  \fi  \fi  \fi \fi \fi \fi \fi \fi}
+\def\@xexpast#1*#2#3#4\@@{%
+   \@tempcnta #2
+   \toks@={#1}\@temptokena={#3}%
+   \let\the@toksz\relax \let\the@toks\relax
+   \def\@tempa{\the@toksz}%
+   \ifnum\@tempcnta >0 \@whilenum\@tempcnta >0\do
+     {\edef\@tempa{\@tempa\the@toks}\advance \@tempcnta \m@ne}%
+       \let \@tempb \@xexpast \else
+       \let \@tempb \@xexnoop \fi
+   \def\the@toksz{\the\toks@}\def\the@toks{\the\@temptokena}%
+   \edef\@tempa{\@tempa}%
+   \expandafter \@tempb \@tempa #4\@@}
+\def\prepnext@tok{\advance \count@ \@ne
+   \toks\count@{}}
+\def\save@decl{\toks\count@ \expandafter{\@nextchar}}
+\def\insert@column{%
+   \the@toks \the \@tempcnta
+   \ignorespaces \@sharp \unskip
+   \the@toks \the \count@ \relax}
+\newdimen\col@sep
+\def\@acol{\@addtopreamble{\hskip\col@sep}}
+\def\@classx{%
+  \ifcase \@lastchclass
+  \@acolampacol \or
+  \@addamp \@acol \or
+  \@acolampacol \or
+  \or
+  \@acol \@firstampfalse \or
+  \@addamp
+  \fi}
+\def\@classz{\@classx
+   \@tempcnta \count@
+   \prepnext@tok
+   \@addtopreamble{\ifcase \@chnum
+      \hfil
+      \hskip1sp%
+      \d@llarbegin
+      \insert@column
+      \d@llarend \do@row@strut \hfil \or
+      \hskip1sp\d@llarbegin \insert@column \d@llarend \do@row@strut \hfil \or
+      \hfil\hskip1sp\d@llarbegin \insert@column \d@llarend \do@row@strut \or
+    \setbox\ar@mcellbox\vbox
+    \@startpbox{\@nextchar}\insert@column \@endpbox
+    \ar@align@mcell
+    \do@row@strut \or
+   \vtop \@startpbox{\@nextchar}\insert@column \@endpbox\do@row@strut \or
+   \vbox \@startpbox{\@nextchar}\insert@column \@endpbox\do@row@strut
+  \fi}\prepnext@tok}
+
+\newbox\ar@mcellbox
+\def\ar@align@mcell{%
+  \ifdim \ht\ar@mcellbox > \ht\@arstrutbox
+    \begingroup
+     \dimen@\ht\ar@mcellbox
+     \advance\dimen@-\ht\@arstrutbox
+     \advance\dimen@\baselineskip
+     \lower.5\dimen@\box\ar@mcellbox
+    \endgroup
+  \else % assume one line and align at baseline
+    \box\ar@mcellbox
+  \fi}
+
+\def\@arrayrule{\@addtopreamble \vline}
+\def\@classvii{\ifnum \@lastchclass = \thr@@
+   \@preamerr \thr@@ \fi}
+\def\@classvi{\ifcase \@lastchclass
+      \@acol \or
+      \@addtopreamble{\hskip \doublerulesep}\or
+      \@acol \or
+      \@classvii
+      \fi}
+\def\@classii{\advance \count@ \m@ne
+   \save@decl\prepnext@tok}
+\def\@classi{\@classvi
+   \ifcase \@chnum \@arrayrule \or
+      \@classv \fi}
+\def\@startpbox#1{\bgroup
+  \color@begingroup
+  \setlength\hsize{#1}\@arrayparboxrestore
+   \everypar{%
+      \vrule \@height \ht\@arstrutbox \@width \z@
+      \everypar{}}%
+   }
+\def\@endpbox{\@finalstrut\@arstrutbox \color@endgroup \egroup\hfil}
+\def\@array[#1]#2{%
+  \@tempdima \ht \strutbox
+  \advance \@tempdima by\extrarowheight
+  \setbox \@arstrutbox \hbox{\vrule
+             \@height \arraystretch \@tempdima
+             \@depth \arraystretch \dp \strutbox
+             \@width \z@}%
+  \begingroup
+  \@mkpream{#2}%
+  \xdef\@preamble{\noexpand \ialign \@halignto
+                  \bgroup \@arstrut \@preamble
+                          \tabskip \z@ \cr}%
+  \endgroup
+  \@arrayleft
+  \if #1t\vtop \else \if#1b\vbox \else \vcenter \fi \fi
+  \bgroup
+  \let \@sharp ##\let \protect \relax
+  \lineskip \z@
+  \baselineskip \z@
+  \m@th
+  \let\\\@arraycr \let\tabularnewline\\\let\par\@empty \@preamble}
+\def\arraybackslash{\let\\\tabularnewline}
+\newdimen \extrarowheight
+\extrarowheight=0pt
+\def\@arstrut{\unhcopy\@arstrutbox}
+\def\@arraycr{\relax\iffalse{\fi\ifnum 0=`}\fi
+  \@ifstar \@xarraycr \@xarraycr}
+\def\@xarraycr{\@ifnextchar [%
+  \@argarraycr {\ifnum 0=`{}\fi\cr}}
+\def\@argarraycr[#1]{\ifnum0=`{}\fi\ifdim #1>\z@
+  \expandafter\@xargarraycr\else
+  \expandafter\@yargarraycr\fi{#1}}
+\def\@xargarraycr#1{\unskip\gdef\do@row@strut
+ {\@tempdima #1\advance\@tempdima \dp\@arstrutbox
+   \vrule \@depth\@tempdima \@width\z@\global\let\do@row@strut\relax}%
+ %    \begin{macrocode}
+   \ifnum\@multicnt >\z@ \do@row@strut \fi
+   \cr}
+\let\do@row@strut\relax
+\def\@yargarraycr#1{\cr\noalign{\vskip #1}}
+\long\def\multicolumn#1#2#3{%
+   \multispan{#1}\begingroup
+   \def\@addamp{\if@firstamp \@firstampfalse \else
+                \@preamerr 5\fi}%
+   \@mkpream{#2}\@addtopreamble\@empty
+   \endgroup
+   \def\@sharp{#3}%
+   \@arstrut \@preamble
+   \null
+   \ignorespaces}
+\let\d@llarbegin\begingroup
+\let\d@llarend\endgroup
+\def\array{\col@sep\arraycolsep
+  \def\d@llarbegin{$}\let\d@llarend\d@llarbegin\def\@halignto{}%
+  \@tabarray}
+\def\tabular{\def\@halignto{}\@tabular}
+\expandafter\def\csname tabular*\endcsname#1{%
+       \setlength\dimen@{#1}%
+       \edef\@halignto{to\the\dimen@}\@tabular}
+\def\@tabular{%
+  \leavevmode
+  \hbox \bgroup $\col@sep\tabcolsep \let\d@llarbegin\begingroup
+                                    \let\d@llarend\endgroup
+  \@tabarray}
+\def\endtabular{\endarray $\egroup}
+\expandafter\let\csname endtabular*\endcsname=\endtabular
+\let\@ampacol=\relax        \let\@expast=\relax
+\let\@arrayclassiv=\relax   \let\@arrayclassz=\relax
+\let\@tabclassiv=\relax     \let\@tabclassz=\relax
+\let\@arrayacol=\relax      \let\@tabacol=\relax
+\let\@tabularcr=\relax      \let\@@endpbox=\relax
+\let\@argtabularcr=\relax   \let\@xtabularcr=\relax
+\def\@preamerr#1{\def\@tempd{{..} at wrong position: }%
+   \PackageError{array}{%
+   \ifcase #1 Illegal pream-token (\@nextchar): `c' used\or %0
+    Missing arg: token ignored\or                           %1
+    Empty preamble: `l' used\or                             %2
+    >\@tempd token ignored\or                               %3
+    <\@tempd changed to !{..}\or                            %4
+    Only one column-spec. allowed.\fi}\@ehc}                %5
+\def\newcolumntype#1{%
+  \edef\NC@char{\string#1}%
+  \@ifundefined{NC@find@\NC@char}%
+    {\@tfor\next:=<>clrmbp@!|\do
+      {%
+        \if\expandafter\noexpand\next\NC@char
+        \PackageWarning{array}%
+                       {Redefining primitive column \NC@char}\fi}%
+     \NC@list\expandafter{\the\NC@list\NC@do#1}}%
+    {\PackageWarning{array}{Column \NC@char\space is already defined}}%
+  \@namedef{NC@find@\NC@char}##1#1{\NC@{##1}}%
+  \@ifnextchar[{\newcol@{\NC@char}}{\newcol@{\NC@char}[0]}}
+\def\newcol@#1[#2]#3{\expandafter\@reargdef
+     \csname NC@rewrite@#1\endcsname[#2]{\NC@find#3}}
+\def\NC@#1{%
+  \@temptokena\expandafter{\the\@temptokena#1}\futurelet\next\NC@ifend}
+\def\NC@ifend{%
+  \ifx\next\relax
+    \else\@tempswatrue\expandafter\NC@rewrite\fi}
+\def\NC@do#1{%
+  \expandafter\let\expandafter\NC@rewrite
+    \csname NC@rewrite@\string#1\endcsname
+  \expandafter\let\expandafter\NC@find
+    \csname NC@find@\string#1\endcsname
+  \expandafter\@temptokena\expandafter{\expandafter}%
+        \expandafter\NC@find\the\@temptokena#1\relax}
+\def\showcols{{\def\NC@do##1{\let\NC@do\NC@show}\the\NC@list}}
+\def\NC@show#1{%
+  \typeout{Column #1\expandafter\expandafter\expandafter\NC@strip
+  \expandafter\meaning\csname NC@rewrite@#1\endcsname\@@}}
+\def\NC@strip#1:#2->#3 #4\@@{#2 -> #4}
+\newtoks\NC@list
+\newcolumntype{*}[2]{}
+\long\@namedef{NC@rewrite@*}#1#2{%
+  \count@#1\relax
+  \loop
+  \ifnum\count@>\z@
+  \advance\count@\m@ne
+  \@temptokena\expandafter{\the\@temptokena#2}%
+  \repeat
+  \NC@find}
+\let\@xexpast\relax
+\let\@xexnoop\relax
+\def\save@decl{\toks \count@ = \expandafter\expandafter\expandafter
+                  {\expandafter\@nextchar\the\toks\count@}}
+\def\@mkpream#1{\gdef\@preamble{}\@lastchclass 4 \@firstamptrue
+   \let\@sharp\relax
+   \def\@startpbox##1{\unexpanded\expandafter{\expandafter
+                      \@startpbox\expandafter{##1}}}\let\@endpbox\relax
+   \let\do@row@strut\relax
+   \let\ar@align@mcell\relax
+   \@temptokena{#1}\@tempswatrue
+   \@whilesw\if@tempswa\fi{\@tempswafalse\the\NC@list}%
+   \count@\m@ne
+   \let\the@toks\relax
+   \prepnext@tok
+   \expandafter \@tfor \expandafter \@nextchar
+    \expandafter :\expandafter =\the\@temptokena \do
+   {\@testpach
+   \ifcase \@chclass \@classz \or \@classi \or \@classii
+     \or \save@decl \or \or \@classv \or \@classvi
+     \or \@classvii \or \@classviii
+     \or \@classx
+     \or \@classx \fi
+   \@lastchclass\@chclass}%
+   \ifcase\@lastchclass
+   \@acol \or
+   \or
+   \@acol \or
+   \@preamerr \thr@@ \or
+   \@preamerr \tw@ \@addtopreamble\@sharp \or
+   \or
+   \else  \@preamerr \@ne \fi
+   \def\the@toks{\the\toks}}
+\let\@classix\relax
+\def\@classviii{\ifnum \@lastchclass >\z@\ifnum\@lastchclass=\tw@\else
+      \@preamerr 4\@chclass 6 \@classvi \fi\fi}
+\def\@classv{\save@decl
+   \expandafter\NC@ecs\@nextchar\extracolsep{}\extracolsep\@@@
+   \@addtopreamble{\d@llarbegin\the@toks\the\count@\relax\d@llarend}%
+   \prepnext@tok}
+\def\NC@ecs#1\extracolsep#2#3\extracolsep#4\@@@{\def\@tempa{#2}%
+  \ifx\@tempa\@empty\else\toks\count@={#1\tabskip#2\relax#3}\fi}
+\def\@tabarray{\@ifnextchar[{\@@array}{\@@array[c]}}
+\let\@@array\@array
+\def\endarray{\crcr \egroup \egroup \@arrayright \gdef\@preamble{}}
+\let\@arrayleft\@empty
+\let\@arrayright\@empty
+\newlength{\extratabsurround}
+\setlength{\extratabsurround}{2pt}
+\newlength{\backup@length}
+\newcommand{\firsthline}{%
+  \multicolumn1c{%
+    \global\backup@length\ht\@arstrutbox
+    \global\advance\backup@length\dp\@arstrutbox
+    \global\advance\backup@length\arrayrulewidth
+     \raise\extratabsurround\copy\@arstrutbox
+    }\\[-\backup@length]\hline
+}
+\newcommand{\lasthline}{\hline\multicolumn1c{%
+    \global\backup@length2\ht\@arstrutbox
+    \global\advance\backup@length2\dp\@arstrutbox
+    \global\advance\backup@length\arrayrulewidth
+    }\\[-\backup@length]%
+    \multicolumn1c{%
+       \lower\extratabsurround\copy\@arstrutbox
+       }%
+}
+\CheckCommand*\@xhline{\ifx\reserved@a\hline
+               \vskip\doublerulesep
+               \vskip-\arrayrulewidth
+             \fi
+      \ifnum0=`{\fi}}
+\renewcommand*\@xhline{\ifx\reserved@a\hline
+               \vskip\doublerulesep
+             \fi
+      \ifnum0=`{\fi}}
+
+\newsavebox\ar@cellbox
+\newcolumntype{w}[2]{%
+  >{\begin{lrbox}\ar@cellbox}%
+  c%
+  <{\end{lrbox}%
+    \makebox[#2][#1]{\usebox\ar@cellbox}}}
+
+\newcolumntype{W}[2]
+  {>{\begin{lrbox}\ar@cellbox}%
+   c%
+   <{\end{lrbox}%
+   \let\hss\hfil
+   \makebox[#2][#1]{\unhbox\ar@cellbox}}}
+\endinput
+%%
+%% End of file `array.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/bm.sty b/Master/texmf-dist/tex/latex-dev/tools/bm.sty
new file mode 100644
index 00000000000..1ce8ae51651
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/bm.sty
@@ -0,0 +1,454 @@
+%%
+%% This is file `bm.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% bm.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% Copyright 1996 1997 1998 1999 2002 2003 2004 2016 2017 2019
+%% David Carlisle Frank Mittelbach
+%%
+%% Development of this package was commissioned by Y&Y Inc.
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{bm}
+          [2019/07/24 v1.2d Bold Symbol Support (DPC/FMi)]
+\def\bm#1#2{%
+  \let\bm@pmb\install@mathalphabet
+  \let\bm@pmb@\getanddefine@fonts
+  \let\bm@pmb@@\or
+  \edef\bm@general{\f@encoding/\f@family/\f@series/\f@shape/\f@size}%
+  \@tempcnta#2%
+  \count@-\count18%
+  \advance\count@-\@tempcnta
+  \advance\count@15\relax
+  \ifnum\count@<\z@
+    \advance\@tempcnta\count@
+  \fi
+  \let\or\relax
+  \expandafter\let\csname bm@#1table\endcsname\@gobble
+  \def\bm@define##1{%
+    \expandafter\xdef\csname bm@#1table\endcsname{%
+      \csname bm@#1table\endcsname\or##1}}%
+  \def\getanddefine@fonts##1##2{%
+    \def\@tempa{##2}%
+    \def\@tempb####1##1####2####3\@nil{\def\@tempb{####2}}%
+    \expandafter\expandafter\expandafter
+      \@tempb\csname mv@#1\endcsname\@nil
+    \ifx\@tempa\@tempb
+      \bm@define\m@ne
+    \else
+      \edef\@tempa{sym#1\expandafter\@gobblefour\string##1}%
+      \ifnum\@tempcnta<%
+           \expandafter\ifx\csname\@tempa\endcsname\relax
+             \@ne
+           \else
+             \m@ne
+           \fi
+        \bm@define\z@
+      \else
+        \expandafter\ifx\csname\@tempa\endcsname\relax
+          \begingroup
+          \escapechar\m@ne
+          \edef\@tempb{\endgroup
+            \noexpand\split@name
+            \expandafter\string\@tempb}%
+          \@tempb/\@nil
+         \expandafter\ifx
+           \csname symbold\expandafter\@gobblefour\string##1\endcsname
+           \relax
+            \expandafter\new@mathgroup\csname\@tempa\endcsname
+            \expandafter\new@symbolfont\csname\@tempa\endcsname
+                       \f@encoding\f@family\f@series\f@shape
+            \advance\@tempcnta\m@ne
+         \else
+           \def\bm@expand####1##1####2####3\@nil{\def\bm@expand{####2}}%
+    \expandafter\expandafter\expandafter
+           \bm@expand\csname mv@bold\endcsname\@nil
+           \ifx\bm@expand\@tempb
+             \expandafter\let\csname\@tempa\expandafter\endcsname
+                \csname symbold\expandafter
+                        \@gobblefour\string##1\endcsname
+           \else
+             \expandafter\new@mathgroup\csname\@tempa\endcsname
+             \expandafter\new@symbolfont\csname\@tempa\endcsname
+                       \f@encoding\f@family\f@series\f@shape
+             \advance\@tempcnta\m@ne
+           \fi
+         \fi
+        \else
+          \PackageInfo{bm}%
+            {Symbol font \@tempa\space already defined.\MessageBreak
+             Not overwriting it}%
+        \fi
+        \count@\csname\@tempa\endcsname
+        \advance\count@-##1%
+        \bm@define{\the\count@\relax}%
+      \fi
+    \fi}%
+  \let\install@mathalphabet\@gobbletwo
+  \mv@normal
+  \expandafter\xdef\csname bm@#1table\endcsname{%
+    \noexpand\ifcase\@tempcnta
+      \csname bm@#1table\endcsname
+    \noexpand\else
+      \z@
+    \noexpand\fi}%
+  \expandafter\split@name\bm@general\@nil
+  \let\install@mathalphabet\bm@pmb
+  \let\getanddefine@fonts\bm@pmb@
+  \let\or\bm@pmb@@}
+\ifx\bmmax\@undefined
+  \chardef\bmmax=4
+\fi
+\ifx\mv@bold\@undefined
+  \def\bm@boldtable{\m@ne}
+  \AtEndOfPackage{%
+    \def\bm@gr@up#1#2{%
+      \bm@pmb{#2}}}
+\else
+  \bm{bold}\bmmax
+  \@ifundefined{symboldoperators}
+    {}
+    {\DeclareSymbolFontAlphabet\mathbf{boldoperators}}
+\fi
+\ifx\hmmax\@undefined
+  \chardef\hmmax=3
+\fi
+\ifx\mv@heavy\@undefined
+\else
+  \bm{heavy}\hmmax
+\fi
+\begingroup
+\catcode`\'=\active
+\catcode`\_=\active
+\@firstofone{\endgroup
+\def\bm@general#1#2#3#4#5{%
+  \begingroup
+    \let\bm\@firstofone
+    \let\hm\@firstofone
+    \global\let\bm@command\@empty
+    \let\@let@token\@empty
+    \let\protect\@empty
+    \let\@typeset@protect\@empty
+    \def\bm@mathchoice{\bm@m@thchoice#1}%
+    \def\bm@group{\bm@gr@up#1}%
+    \let\bm@table#2%
+    \let\left\holdinginserts
+    \let\right\left
+    \let\mskip\mkern
+    \let\hskip\kern
+    \let\bm@prime\copy
+    \let_\relax
+    \def'{\bm@prime\prime\relax}%
+    \def\@ifnextchar##1##2##3##4{%
+      \if##1##4%
+        \expandafter\@firstoftwo
+      \else
+        \expandafter\@secondoftwo
+      \fi
+      {##2##4}{##3{##4}}}%
+    \def\GenericWarning##1##2{%
+      \unvcopy{\GenericWarning{##1}{##2}}}%
+    \def\GenericError##1##2##3##4{%
+      \unvcopy{\GenericError{##1}{##2}{##3}{##4}}}%
+    \let\DN@\copy
+    \let\FN@\copy
+    \let\next@\copy
+    \global\let\bm@first\@empty
+    \ifx\uproot@\undefined\else
+       \def\root##1\of##2{{\root##1\of{##2}}}%
+    \fi
+    \def\mathaccentV##1{\mathaccent"\accentclass@}%
+    \let\@ifnext\@ifnextchar
+    \let\measure@lhs\copy
+    \let \rel@break\copy
+    \let \bin@break\copy
+    \let \after@open\copy
+    \let \after@close\copy
+    \let\ifmmode\iftrue
+     \let\install@mathalphabet\def
+     \let\getanddefine@fonts\@gobbletwo
+     #3%
+    \def\select@group##1##2##3##4{{%
+      \protect##1{##4}}}%
+    \def\use@mathgroup##1##2##3{{%
+      \protect\use@mathgroup##1{##2}{##3}}}%
+    \bm@expand#5\bm@end
+  \endgroup
+  #4}
+}
+\DeclareRobustCommand\bm{%
+  \bm@general\boldmath\bm@boldtable\mv@bold\bm@command}
+\protected@edef\bm#1{\bm{#1}}
+\def\DeclareBoldMathCommand{\@testopt\bm@declare{bold}}
+\def\bm@declare[#1]#2{%
+  \expandafter\bm@general
+        \csname #1math\expandafter\endcsname
+        \csname bm@#1table\expandafter\endcsname
+        \csname mv@#1\endcsname
+        {\bm@define#2}}
+\def\bmdefine{\DeclareBoldMathCommand[bold]}
+\ifx\mv@heavy\@undefined
+  \let\hm\bm
+  \let\heavymath\boldmath
+  \let\bm@heavytable\bm@boldtable
+\else
+  \DeclareRobustCommand\hm{%
+    \bm@general\heavymath\bm@heavytable\mv@heavy\bm@command}
+  \protected@edef\hm#1{\hm{#1}}
+  \def\hmdefine{\DeclareBoldMathCommand[heavy]}
+\fi
+\outer\def\bm@end{\@@end}
+\def\bm@expand{\afterassignment\bm@exp@nd\count@`\a}
+\def\bm@exp@nd{\afterassignment\bm@test\count@`\a}
+\def\bm@test{%
+  \let\bm@previous\@let@token
+  \futurelet\@let@token\bm@test@}
+\def\bm@test@{%
+  \ifx\@let@token\bgroup
+    \expandafter\bm@group
+  \else
+    \expandafter\bm@test@token
+  \fi}
+\def\bm@gr@up#1#2{%
+  \bm@add{{\bm@gr@@p#1{{#2}}}}}
+\def\bm@gr@@p#1#2{%
+  \ifmmode
+    \bm@mchoice#1{#2}{#2}{#2}{#2}%
+  \else
+    \bfseries#1#2%
+  \fi}
+\def\bm@test@token#1{%
+  \let\bm@next\@empty
+  \ifx#1\@@end
+  \else\ifx#1\mathchoice
+    \let\bm@next\bm@mathchoice
+  \else\ifx#1\mathchar
+    \afterassignment\bm@mathchar\count@
+  \else\ifx#1\mathaccent
+    \afterassignment\bm@mathaccent\count@
+  \else\ifx#1\delimiter
+    \afterassignment\bm@delimiter\count@
+  \else\ifx#1\radical
+    \afterassignment\bm@radical\count@
+  \else\ifx#1\mkern
+    \bm@register#1{\muskip\z@}%
+  \else\ifx#1\kern
+    \bm@register#1\skip@
+  \else\ifx#1\penalty
+    \bm@register#1\count@
+  \else\ifx#1\unvcopy
+    \let\bm@next\bm@add
+  \else\ifcat\noexpand#1\relax
+    \xdef\meaning@{\meaning#1}%
+    \expandafter\bm@mchar@test\meaning@""""\@nil#1%
+  \else\ifcat.\ifcat a#1.\else#1\fi
+    \count@\mathcode`#1\relax
+    \ifnum\count@=\mathcode`\'%
+      \begingroup\uccode`\~`#1\uppercase{\endgroup
+        \def\bm@next{\bm@expand~}}%
+    \else
+      \ifx\bm@previous\left
+        \count@\delcode`#1\relax
+        \bm@delimiter
+      \else
+        \ifnum\count@>"8000
+          \Umathcharnumdef\@tempa\count@
+          \xdef\meaning@{\meaning\@tempa}%
+          \expandafter\bm@mchar@test\meaning@""""\@nil\@tempa
+        \else
+          \bm@mathchar
+        \fi
+      \fi
+    \fi
+  \else
+    \bm@add{#1}%
+  \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
+  \bm@next}
+\def\bm@define#1{%
+  \begingroup
+    \ifx\bm@command\@gtempa
+      \def\mathchar{\global\mathchardef#1}%
+      \bm@command
+    \else
+      \toks@\expandafter{\bm@command}%
+      \xdef#1{\bm@first\noexpand\bm@protect\noexpand#1{\the\toks@}}%
+    \fi
+  \endgroup}
+\def\bm@protect#1{%
+  \ifx\protect\@typeset@protect
+    \expandafter\@firstofone
+  \else
+    \protect#1\expandafter\@gobble
+  \fi}
+\def\bm@mchoice#1#2#3#4#5{%
+  \mathchoice{\hbox{#1$\displaystyle\m@th#2$}}%
+             {\hbox{#1$\textstyle\m@th#3$}}%
+             {\hbox{#1$\scriptstyle\m@th#4$}}%
+             {\hbox{#1$\scriptscriptstyle\m@th#5$}}}
+\def\bm@m@thchoice#1#2#3#4#5{%
+  \bm@add{\bm@mchoice#1{#2}{#3}{#4}{#5}}}
+\def\bm@register#1#2{%
+  \def\@tempa{#1\the#2}%
+  \afterassignment\bm@r@gister#2}
+\def\bm@r@gister{%
+  \bm@xadd{\@tempa\space}}
+\def\bm@mathchar{%
+  \@tempcntb\count@
+  \let\@tempa\bm@group
+  \bm@changefam{}%
+  \ifnum\count@>\@tempcntb
+    \ifx\bm@command\@empty
+      \xdef\@gtempa{\mathchar\the\count@\space}%
+    \fi
+    \bm@xadd{\mathchar\the\count@\space}%
+  \else
+    \begingroup
+      \divide\count@"1000
+      \let\bm@expand\relax
+      \bm@xadd\bm@class
+    \endgroup
+    \edef\@tempb{%
+      \noexpand\@tempa{\mathchar\the\count@\space}}%
+    \@tempb
+  \fi}
+\def\bm@umathchar#1#2#3{%
+\@tempcnta#2\relax
+\count@\bm@table
+\ifnum\count@=\z@
+  \bm@gr@up\boldmath{\Umathchar#1 #2 #3 }%
+\else
+  \ifnum\count@=\m@ne
+  \else
+    \advance\@tempcnta\count@
+  \fi
+  \bm@xadd{\Umathchar#1\space
+                     \the\@tempcnta\space\space
+                     #3\space}%
+\fi}
+\def\bm@pmb#1{%
+  \bm@add{\bm@pmb@{#1}}}
+\def\bm@pmb@#1{{%
+  \setbox\tw@\hbox{$\m@th\mkern.4mu$}%
+  \mathchoice
+    \bm@pmb@@\displaystyle\@empty{#1}%
+    \bm@pmb@@\textstyle\@empty{#1}%
+    \bm@pmb@@\scriptstyle\defaultscriptratio{#1}%
+    \bm@pmb@@\scriptscriptstyle\defaultscriptscriptratio{#1}}}
+\def\bm@pmb@@#1#2#3{{%
+  \setbox\z@\hbox{$\m@th#1#3$}%
+  \dimen@#2\wd\tw@
+  \rlap{\copy\z@}%
+  \kern\dimen@
+  \raise1.5\dimen@\rlap{\copy\z@}%
+  \kern\dimen@
+  \box\z@}}%
+\def\bm@class{%
+  \ifcase\count@
+    \or
+    \mathop\or
+    \mathbin\or
+    \mathrel\or
+    \mathopen\or
+    \mathclose\or
+    \mathpunct\or
+  \fi}
+\def\bm@add#1{%
+  \begingroup
+    \toks@\expandafter{\bm@command#1}%
+    \xdef\bm@command{\the\toks@}%
+  \endgroup
+  \bm@expand}
+\def\bm@xadd#1{%
+  \begingroup
+    \toks@\expandafter{\bm@command}%
+    \xdef\bm@command{\the\toks@#1}%
+  \endgroup
+  \bm@expand}
+\def\bm@mathaccent{%
+ \bm@changefam{}%
+ \begingroup
+ \def\bm@group##1{\endgroup\bm@xadd{\bgroup}##1\egroup}%
+ \def\bm@test@token{\endgroup\bm@test@token}%
+ \let\relax\@empty
+ \bm@xadd{\mathaccent\the\count@\space}}
+\def\bm@delimiter{%
+  \ifnum\count@>\z@
+    \bm@changefam{}%
+    \bm@changefam{000}%
+  \fi
+  \bm@xadd{\delimiter\the\count@\space}}%
+\def\bm@radical{%
+ \bm@changefam{}%
+ \bm@changefam{000}%
+ \bm@xadd{\radical\the\count@\space}}%
+\edef\bm@mchar@{\meaning\mathchar}
+\edef\bm@umchar@{\string\U\expandafter\@gobble\meaning\mathchar}
+\def\bm@mchar@test#1"#2"#3"#4"#5\@nil#6{%
+  \xdef\meaning@{#1}%
+  \ifx\meaning@\bm@mchar@
+    \count@"#2\relax
+    \bm@mathchar
+  \else
+    \ifx\meaning@\bm@umchar@
+       \bm@umathchar{"#2}{"#3}{"#4}%
+    \else
+      \ifx\bm@previous\@empty
+        \ifx\relax#6%
+          \gdef\bm@first{#6}%
+        \fi
+      \fi
+      \bm@add{#6}%
+    \fi
+  \fi}
+\def\bm@changefam#1{%
+  \@tempcnta\count@
+  \divide\@tempcnta"1000#1 %
+  \multiply\@tempcnta"1000#1 %
+  \advance\@tempcnta-\count@
+  \divide\@tempcnta-"100#1 %
+  \@tempcnta\bm@table
+  \ifnum\@tempcnta=\m@ne
+    \let\@tempa\bm@pmb
+  \else
+    \multiply\@tempcnta"100#1 %
+    \advance\count@\@tempcnta
+  \fi}
+\def\bm@prime{^\bgroup
+  \let\bm@prime'%
+  \def\prim@s##1\relax{##1\futurelet\@let@token\pr@m@s}%
+  \prim@s}
+\let\boldsymbol\bm
+\let\heavysymbol\hm
+\endinput
+%%
+%% End of file `bm.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/calc.sty b/Master/texmf-dist/tex/latex-dev/tools/calc.sty
new file mode 100644
index 00000000000..175d5a48a7d
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/calc.sty
@@ -0,0 +1,289 @@
+%%
+%% This is file `calc.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% calc.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% File `calc.dtx'.
+%% Copyright (C) 1992--1995
+%%          Kresten Krab Thorup and Frank Jensen.
+%% Copyright (C) 1997--2007
+%%          Kresten Krab Thorup, Frank Jensen and the LaTeX3 Project.
+%%
+%% The original authors (fj@hugin.dk and  krab@daimi.aau.dk) have
+%% contributed this package to the LaTeX distribution.
+%% Problems with this package should now be sent using latexbug.tex to
+%% the normal LaTeX bug report address.
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{calc}
+          [2017/05/25 v4.3 Infix arithmetic (KKT,FJ)]
+\def\calc@assign@generic#1#2#3#4{\let\calc@A#1\let\calc@B#2%
+    \calc@open(#4!%
+    \global\calc@A\calc@B\endgroup#3\calc@B}
+\def\calc@assign@count{\calc@assign@generic\calc@Acount\calc@Bcount}
+\def\calc@assign@dimen{\calc@assign@generic\calc@Adimen\calc@Bdimen}
+\def\calc@assign@skip{\calc@assign@generic\calc@Askip\calc@Bskip}
+\newcount\calc@Acount   \newcount\calc@Bcount
+\newdimen\calc@Adimen   \newdimen\calc@Bdimen
+\newskip\calc@Askip     \newskip\calc@Bskip
+\def\setcounter#1#2{\@ifundefined{c@#1}{\@nocounterr{#1}}%
+   {\calc@assign@count{\global\csname c@#1\endcsname}{#2}}}
+  \def\addtocounter#1#2{\@ifundefined{c@#1}{\@nocounterr{#1}}%
+    {\calc@assign@count{\global\advance\csname c@#1\endcsname}{#2}}}%
+  \def\stepcounter#1{\@ifundefined {c@#1}%
+    {\@nocounterr {#1}}%
+    {\global\advance\csname c@#1\endcsname \@ne
+    \begingroup
+      \let\@elt\@stpelt \csname cl@#1\endcsname
+    \endgroup}}%
+\@ifpackageloaded{amstext}{%
+ \expandafter\def\expandafter\stepcounter
+    \expandafter#\expandafter1\expandafter{%
+    \expandafter\iffirstchoice@\stepcounter{#1}\fi
+ }
+ \expandafter\def\expandafter\addtocounter
+    \expandafter#\expandafter1\expandafter#\expandafter2\expandafter{%
+    \expandafter\iffirstchoice@\addtocounter{#1}{#2}\fi
+ }
+}{}
+\DeclareRobustCommand\setlength{\calc@assign@skip}
+\DeclareRobustCommand\addtolength[1]{\calc@assign@skip{\advance#1}}
+\def\calc@pre@scan#1{%
+  \expandafter\@calc@pre@scan\romannumeral-`\a#1}
+\def\@calc@pre@scan#1{%
+  \ifx(#1%
+    \expandafter\calc@open
+  \else
+    \ifx\widthof#1%
+      \expandafter\expandafter\expandafter\calc@textsize
+    \else
+      \ifx\maxof#1%
+        \expandafter\expandafter\expandafter\expandafter
+        \expandafter\expandafter\expandafter\calc@maxmin@addsub
+      \else
+        \calc@numeric% no \expandafter needed for this one.
+      \fi
+    \fi
+  \fi
+  #1}
+\def\calc@open({\begingroup\aftergroup\calc@initB
+   \begingroup\aftergroup\calc@initB
+   \calc@pre@scan}
+\def\calc@initB{\calc@B\calc@A}
+\def\calc@numeric{\afterassignment\calc@post@scan \global\calc@A}
+\@for\reserved@a:=widthof,heightof,depthof,totalheightof,maxof,minof\do
+{\@ifundefined{\reserved@a}{}{%
+  \PackageError{calc}{%
+  The\space calc\space package\space reserves\space the\space
+  command\space name\space `\@backslashchar\reserved@a'\MessageBreak
+  but\space it\space has\space already\space been\space defined\space
+  with\space the\space meaning\MessageBreak
+  `\expandafter\meaning\csname\reserved@a\endcsname'.\MessageBreak
+  This\space original\space definition\space will\space be\space lost}%
+  {If\space you\space need\space a\space command\space with\space
+  this\space definition,\space you\space must\space use\space a\space
+  different\space name.}}%
+}
+\let\widthof\ignorespaces
+\let\heightof\ignorespaces
+\let\depthof\ignorespaces
+\let\totalheightof\ignorespaces
+\def\calc@textsize #1#2{%
+  \begingroup
+    \let\widthof\wd
+    \let\heightof\ht
+    \let\depthof\dp
+    \def\totalheightof{\ht\dp}%
+    \expandafter\@settodim\expandafter{#1}%
+      {\global\calc@A}%
+      {%
+       \let\widthof\ignorespaces
+       \let\heightof\ignorespaces
+       \let\depthof\ignorespaces
+       \let\totalheightof\ignorespaces
+       #2}%
+  \endgroup
+  \calc@post@scan}
+\def\calc@post@scan#1{%
+ \expandafter\@calc@post@scan\romannumeral-`\a#1}
+\def\@calc@post@scan#1{%
+  \ifx#1!\let\calc@next\endgroup \else
+    \ifx#1+\let\calc@next\calc@add \else
+      \ifx#1-\let\calc@next\calc@subtract \else
+        \ifx#1*\let\calc@next\calc@multiplyx \else
+          \ifx#1/\let\calc@next\calc@dividex \else
+            \ifx#1)\let\calc@next\calc@close \else
+              \ifx#1\relax\let\calc@next\calc@post@scan \else
+                \def\calc@next{\calc@error#1}%
+              \fi
+            \fi
+          \fi
+        \fi
+      \fi
+    \fi
+  \fi
+  \calc@next}
+\def\calc@add{\calc@generic@add\calc@addAtoB}
+\def\calc@subtract{\calc@generic@add\calc@subtractAfromB}
+\def\calc@generic@add#1{\endgroup\global\calc@A\calc@B\endgroup
+   \begingroup\aftergroup#1\begingroup\aftergroup\calc@initB
+   \calc@pre@scan}
+\def\calc@addAtoB{\advance\calc@B\calc@A}
+\def\calc@subtractAfromB{\advance\calc@B-\calc@A}
+\ifx\real\@undefined\let\real\relax\fi
+\ifx\ratio\@undefined\let\ratio\relax\fi
+\def\calc@ratio@x{\ratio}
+\def\calc@real@x{\real}
+\def\calc@multiplyx#1{\def\calc@tmp{#1}%
+  \ifx\calc@tmp\calc@ratio@x \let\calc@next\calc@ratio@multiply \else
+    \ifx\calc@tmp\calc@real@x \let\calc@next\calc@real@multiply \else
+      \ifx\maxof#1\let\calc@next\calc@maxmin@multiply \else
+        \let\calc@next\calc@multiply
+      \fi
+    \fi
+  \fi
+  \calc@next#1}
+\def\calc@dividex#1{\def\calc@tmp{#1}%
+  \ifx\calc@tmp\calc@ratio@x \let\calc@next\calc@ratio@divide \else
+    \ifx\calc@tmp\calc@real@x \let\calc@next\calc@real@divide \else
+      \ifx\maxof#1\let\calc@next\calc@maxmin@divide \else
+        \let\calc@next\calc@divide
+      \fi
+    \fi
+  \fi
+  \calc@next#1}
+\def\calc@multiply{\calc@generic@multiply\calc@multiplyBbyA}
+\def\calc@divide{\calc@generic@multiply\calc@divideBbyA}
+\def\calc@generic@multiply#1{\endgroup\begingroup
+   \let\calc@A\calc@Acount \let\calc@B\calc@Bcount
+   \aftergroup#1\calc@pre@scan}
+\def\calc@multiplyBbyA{\multiply\calc@B\calc@Acount}
+\def\calc@divideBbyA{\divide\calc@B\calc@Acount}
+\def\calc@close
+   {\endgroup\global\calc@A\calc@B
+    \endgroup\global\calc@A\calc@B
+    \calc@post@scan}
+\def\calc@ratio@multiply\ratio{\calc@ratio@evaluate}
+\def\calc@ratio@divide\ratio#1#2{\calc@ratio@evaluate{#2}{#1}}
+\newcount\calc@Ccount
+\let\calc@numerator=\calc@Bcount
+\let\calc@denominator=\calc@Ccount
+\def\calc@ratio@evaluate#1#2{%
+   \endgroup\begingroup
+      \calc@assign@dimen\calc@numerator{#1}%
+      \calc@assign@dimen\calc@denominator{#2}%
+      \gdef\calc@the@ratio{}%
+      \ifnum\calc@numerator<0 \calc@numerator-\calc@numerator
+         \gdef\calc@the@ratio{-}%
+      \fi
+      \ifnum\calc@denominator<0 \calc@denominator-\calc@denominator
+         \xdef\calc@the@ratio{\calc@the@ratio-}%
+      \fi
+      \calc@Acount\calc@numerator
+      \divide\calc@Acount\calc@denominator
+      \xdef\calc@the@ratio{\calc@the@ratio\number\calc@Acount.}%
+      \calc@next@digit \calc@next@digit \calc@next@digit
+      \calc@next@digit \calc@next@digit \calc@next@digit
+   \endgroup
+   \calc@multiply@by@real\calc@the@ratio
+   \begingroup
+   \calc@post@scan}
+\def\calc@next@digit{%
+      \multiply\calc@Acount\calc@denominator
+      \advance\calc@numerator -\calc@Acount
+      \multiply\calc@numerator 10
+      \calc@Acount\calc@numerator
+      \divide\calc@Acount\calc@denominator
+      \xdef\calc@the@ratio{\calc@the@ratio\number\calc@Acount}}
+\def\calc@multiply@by@real#1{\calc@Bdimen #1\calc@B \calc@B\calc@Bdimen}
+\def\calc@real@multiply\real#1{\endgroup
+   \calc@multiply@by@real{#1}\begingroup
+   \calc@post@scan}
+\def\calc@real@divide\real#1{\calc@ratio@evaluate{1pt}{#1pt}}
+\let\maxof\@@italiccorr
+\let\minof\@@italiccorr
+\newskip\calc@Cskip
+\newif\ifcalc@count@
+\def\calc@maxmin@addsub#1#2#3{\begingroup
+  \ifx\calc@A\calc@Acount%
+    \calc@count@true
+  \else
+    \calc@count@false
+  \fi
+  \calc@maxmin@generic#1{#2}{#3}%
+  \endgroup
+  \calc@post@scan
+}
+\def\calc@maxmin@generic#1#2#3{%
+  \begingroup
+    \ifcalc@count@
+      \calc@assign@count\calc@Ccount{#2}%
+      \calc@assign@count\calc@Bcount{#3}%
+      \def\minof{<}\def\maxof{>}%
+      \global\calc@A\ifnum\calc@Ccount#1\calc@Bcount
+        \calc@Ccount\else\calc@Bcount\fi
+    \else
+      \calc@assign@skip\calc@Cskip{#2}%
+      \calc@assign@skip\calc@Bskip{#3}%
+      \def\minof{<}\def\maxof{>}%
+      \global\calc@A\ifdim\calc@Cskip#1\calc@Bskip
+        \calc@Cskip\else\calc@Bskip\fi
+    \fi
+  \endgroup
+}
+\def\calc@maxmin@divmul#1#2#3#4{%
+  \endgroup\begingroup
+  \calc@count@true
+  \aftergroup#1%
+  \calc@maxmin@generic#2{#3}{#4}%
+  \endgroup\begingroup
+  \calc@post@scan
+}
+\def\calc@maxmin@multiply{\calc@maxmin@divmul\calc@multiplyBbyA}
+\def\calc@maxmin@divide  {\calc@maxmin@divmul\calc@divideBbyA}
+\def\calc@error#1{%
+   \PackageError{calc}%
+     {`#1' invalid at this point}%
+     {I expected to see one of: + - * / )}}
+\def\@settodim#1#2#3{%
+  \setbox\@tempboxa\hbox{{#3}}%
+  \dimen@ii=\z@
+  \@tf@r\reserved@a #1\do{%
+  \advance\dimen@ii\reserved@a\@tempboxa}%
+  #2=\dimen@ii
+  \setbox\@tempboxa\box\voidb@x}
+\def\settototalheight{\@settodim{\ht\dp}}
+\endinput
+%%
+%% End of file `calc.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/dcolumn.sty b/Master/texmf-dist/tex/latex-dev/tools/dcolumn.sty
new file mode 100644
index 00000000000..9fe46e6aa6a
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/dcolumn.sty
@@ -0,0 +1,84 @@
+%%
+%% This is file `dcolumn.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% dcolumn.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% File: dcolumn.dtx Copyright (C) 1992-1996 1999-2001 David Carlisle
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{dcolumn}
+          [2014/10/28 v1.06 decimal alignment package (DPC)]
+\RequirePackage{array}
+\def\DC@#1#2#3{%
+  \uccode`\~=`#1\relax
+  \m@th
+  \afterassignment\DC@x\count@#3\relax{#1}{#2}}
+\def\DC@x#1\relax#2#3{%
+  \ifnum\z@>\count@
+    \expandafter\DC@centre
+  \else
+    \expandafter\DC@right
+  \fi
+  {#2}{#3}{#1}}
+\def\DC@centre#1#2#3{%
+  \let\DC@end\DC@endcentre
+  \uppercase{\def~}{$\egroup\setbox\tw@=\hbox\bgroup${#2}}%
+  \setbox\tw@=\hbox{${\phantom{{#2}}}$}%
+  \setbox\z@=\hbox\bgroup$\mathcode`#1="8000 }
+\def\DC@endcentre{$\egroup
+    \ifdim \wd\z@>\wd\tw@
+      \setbox\tw@=\hbox to\wd\z@{\unhbox\tw@\hfill}%
+    \else
+      \setbox\z@=\hbox to\wd\tw@{\hfill\unhbox\z@}\fi
+    \box\z@\box\tw@}
+\def\DC@right#1#2#3{%
+  \ifx\relax#3\relax
+    \hfill
+    \let\DC@rl\bgroup
+  \else
+    \edef\DC@rl{to\the\count@\dimen@ii\bgroup\hss\hfill}%
+    \count@\@gobble#3\relax
+  \fi
+  \let\DC@end\DC@endright
+  \uppercase{\def~}{$\egroup\setbox\tw@\hbox to\dimen@\bgroup${#2}}%
+   \setbox\z@\hbox{$1$}\dimen@ii\wd\z@
+   \dimen@\count@\dimen@ii
+   \setbox\z@\hbox{${#2}$}\advance\dimen@\wd\z@
+   \setbox\tw@\hbox to\dimen@{}%
+   \setbox\z@\hbox\DC@rl$\mathcode`#1="8000 }
+\def\DC@endright{$\hfil\egroup\box\z@\box\tw@}
+\newcolumntype{D}[3]{>{\DC@{#1}{#2}{#3}}c<{\DC@end}}
+\endinput
+%%
+%% End of file `dcolumn.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/delarray.sty b/Master/texmf-dist/tex/latex-dev/tools/delarray.sty
new file mode 100644
index 00000000000..cd1e55fc85a
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/delarray.sty
@@ -0,0 +1,61 @@
+%%
+%% This is file `delarray.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% delarray.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% File: delarray.dtx Copyright (C) 1991-1994 David Carlisle
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{delarray}
+         [2014/10/28 v1.01 array delimiter package (DPC)]
+\RequirePackage{array}[1994/02/03]
+\def\@tabarray{\@ifnextchar[{\@@array}{\@@array[c]}}
+\def\@@array[#1]{\@ifnextchar\bgroup
+  {\let\@arrayleft\relax\let\@arrayright\relax\@array[#1]}%
+  {\@del@array[#1]}}
+\def\@del@array[#1]#2#3#4{%
+  \setbox\z@\hbox{$\left#2\right#4$}%
+  \if#1c\def\@arrayleft{\left#2}\def\@arrayright{\right#4}%
+  \else\def\@arrayleft{\setbox\z@}%
+  \def\@arrayright{%
+     \dimen@=\dp\z@
+     \advance\dimen@-\ht\z@
+     \divide \dimen@ by \tw@
+     \advance\dimen@ by\fontdimen22 \textfont\tw@
+     \lower\dimen@\hbox{$\left#2\vcenter{\unvbox\z@}\right#4$}}%
+  \fi
+  \@array[#1]{#3}}
+\endinput
+%%
+%% End of file `delarray.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/e.tex b/Master/texmf-dist/tex/latex-dev/tools/e.tex
new file mode 100644
index 00000000000..49329f42c3a
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/e.tex
@@ -0,0 +1,41 @@
+%%
+%% This is file `e.tex',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% fileerr.dtx  (with options: `edit')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+  \batchmode \errmessage{}\csname @@end\endcsname \end
+\endinput
+%%
+%% End of file `e.tex'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/enumerate.sty b/Master/texmf-dist/tex/latex-dev/tools/enumerate.sty
new file mode 100644
index 00000000000..7c6ce896434
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/enumerate.sty
@@ -0,0 +1,88 @@
+%%
+%% This is file `enumerate.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% enumerate.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% File: enumerate.dtx Copyright  1993 1994 1999 David Carlisle
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{enumerate}
+          [2015/07/23 v3.00 enumerate extensions (DPC)]
+\newtoks\@enLab
+\def\@enQmark{?}
+\def\@enLabel#1#2{%
+  \edef\@enThe{\noexpand#1{\@enumctr}}%
+  \@enLab\expandafter{\the\@enLab\csname the\@enumctr\endcsname}%
+  \@enloop}
+\def\@enSpace{\afterassignment\@enSp@ce\let\@tempa= }
+\def\@enSp@ce{\@enLab\expandafter{\the\@enLab\space}\@enloop}
+\def\@enGroup#1{\@enLab\expandafter{\the\@enLab{#1}}\@enloop}
+\def\@enOther#1{\@enLab\expandafter{\the\@enLab#1}\@enloop}
+\def\@enloop{\futurelet\@entemp\@enloop@}
+\def\@enloop@{%
+  \ifx A\@entemp         \def\@tempa{\@enLabel\Alph  }\else
+  \ifx a\@entemp         \def\@tempa{\@enLabel\alph  }\else
+  \ifx i\@entemp         \def\@tempa{\@enLabel\roman }\else
+  \ifx I\@entemp         \def\@tempa{\@enLabel\Roman }\else
+  \ifx 1\@entemp         \def\@tempa{\@enLabel\arabic}\else
+  \ifx \@sptoken\@entemp \let\@tempa\@enSpace         \else
+  \ifx \bgroup\@entemp   \let\@tempa\@enGroup         \else
+  \ifx \@enum@\@entemp   \let\@tempa\@gobble          \else
+                         \let\@tempa\@enOther
+                         \@enhook
+             \fi\fi\fi\fi\fi\fi\fi\fi
+  \@tempa}
+\providecommand\@enhook{}
+\def\enumerate{%
+  \ifnum \@enumdepth >3 \@toodeep\else
+      \advance\@enumdepth \@ne
+      \edef\@enumctr{enum\romannumeral\the\@enumdepth}\fi
+  \@ifnextchar[{\@@enum@}{\@enum@}}
+\def\@@enum@[#1]{%
+  \@enLab{}\let\@enThe\@enQmark
+  \@enloop#1\@enum@
+  \ifx\@enThe\@enQmark\@warning{The counter will not be printed.%
+   ^^J\space\@spaces\@spaces\@spaces The label is: \the\@enLab}\fi
+  \expandafter\edef\csname label\@enumctr\endcsname{\the\@enLab}%
+  \expandafter\let\csname the\@enumctr\endcsname\@enThe
+  \csname c@\@enumctr\endcsname7
+  \expandafter\settowidth
+            \csname leftmargin\romannumeral\@enumdepth\endcsname
+            {\the\@enLab\hspace{\labelsep}}%
+  \@enum@}
+\def\@enum@{\list{\csname label\@enumctr\endcsname}%
+           {\usecounter{\@enumctr}\def\makelabel##1{\hss\llap{##1}}}}
+\endinput
+%%
+%% End of file `enumerate.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/fontsmpl.sty b/Master/texmf-dist/tex/latex-dev/tools/fontsmpl.sty
new file mode 100644
index 00000000000..b8388317311
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/fontsmpl.sty
@@ -0,0 +1,186 @@
+%%
+%% This is file `fontsmpl.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% fontsmpl.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%%
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{fontsmpl}[1994/10/29 Font sample package]
+\newcommand{\fontsample}{%
+   Test of font \f@encoding/\f@family/\f@series/\f@shape.
+   \fontsampletext
+   \fontsampleglyphs
+   \fontsampleaccents
+}
+\newcommand{\fontsampletext}{%
+   Some text:
+   \begin{quote}\begin{flushleft}
+      On November 14, 1885, Senator \& Mrs.~Leland Stanford called
+      together at their San Francisco mansion the 24~prominent men who
+      had been chosen as the first trustees of The Leland Stanford
+      Junior University.  They handed to the board the Founding Grant
+      of the University, which they had executed three days before.
+      This document---with various amendments, legislative acts, and
+      court decrees---remains as the University's charter.  In bold,
+      sweeping language it stipulates that the objectives of the
+      University are ``to qualify students for personal success and
+      direct usefulness in life; and to promote the publick welfare by
+      exercising an influence in behalf of humanity and civilization,
+      teaching the blessings of liberty regulated by law, and
+      inculcating love and reverence for the great principles of
+      government as derived from the inalienable rights of man to life,
+      liberty, and the pursuit of happiness.''
+   \\
+      (!`THE DAZED BROWN FOX QUICKLY GAVE 12345--67890 JUMPS!)
+   \\
+      ?`But aren't Kafka's Schlo\ss\
+      and \AE sop's \OE uvres often na\"\i ve vis-\`a-vis the
+      d\ae monic ph\oe nix's official r\^ole in fluffy s\t ouffl\'es?
+   \\
+
+   \end{flushleft}\end{quote}
+}
+\newcommand{\fontsampleglyphs}{%
+   Some glyphs:
+   \begin{quote}\begin{flushleft}
+      \fontsampleglyph{\#}
+      \fontsampleglyph{\$}
+      \fontsampleglyph{\%}
+      \fontsampleglyph{\&}
+      \fontsampleglyph{\AA}
+      \fontsampleglyph{\AE}
+      \fontsampleglyph{\DH}
+      \fontsampleglyph{\DJ}
+      \fontsampleglyph{\L}
+      \fontsampleglyph{\NG}
+      \fontsampleglyph{\OE}
+      \fontsampleglyph{\O}
+      \fontsampleglyph{\P}
+      \fontsampleglyph{\SS}
+      \fontsampleglyph{\S}
+      \fontsampleglyph{\TH}
+      \fontsampleglyph{\_}
+      \fontsampleglyph{\aa}
+      \fontsampleglyph{\ae}
+      \fontsampleglyph{\copyright}
+      \fontsampleglyph{\dag}
+      \fontsampleglyph{\ddag}
+      \fontsampleglyph{\dh}
+      \fontsampleglyph{\dj}
+      \fontsampleglyph{\dots}
+      \fontsampleglyph{\guillemotleft}
+      \fontsampleglyph{\guillemotright}
+      \fontsampleglyph{\guilsinglleft}
+      \fontsampleglyph{\guilsinglright}
+      \fontsampleglyph{\i}
+      \fontsampleglyph{\j}
+      \fontsampleglyph{\l}
+      \fontsampleglyph{\ng}
+      \fontsampleglyph{\oe}
+      \fontsampleglyph{\o}
+      \fontsampleglyph{\pounds}
+      \fontsampleglyph{\quotedblbase}
+      \fontsampleglyph{\quotesinglbase}
+      \fontsampleglyph{\ss}
+      \fontsampleglyph{\textasciicircum}
+      \fontsampleglyph{\textasciitilde}
+      \fontsampleglyph{\textbackslash}
+      \fontsampleglyph{\textbar}
+      \fontsampleglyph{\textbullet}
+      \fontsampleglyph{\textcompwordmark}
+      \fontsampleglyph{\textemdash}
+      \fontsampleglyph{\textendash}
+      \fontsampleglyph{\textexclamdown}
+      \fontsampleglyph{\textgreater}
+      \fontsampleglyph{\texthyphenchar}
+      \fontsampleglyph{\textless}
+      \fontsampleglyph{\textperiodcentered}
+      \fontsampleglyph{\textquestiondown}
+      \fontsampleglyph{\textquotedblleft}
+      \fontsampleglyph{\textquotedblright}
+      \fontsampleglyph{\textquotedbl}
+      \fontsampleglyph{\textquoteleft}
+      \fontsampleglyph{\textquoteright}
+      \fontsampleglyph{\textvisiblespace}
+      \fontsampleglyph{\th}
+      \fontsampleglyph{\{}
+      \fontsampleglyph{\}}
+   \end{flushleft}\end{quote}
+}
+\newcommand{\fontsampleglyph}[1]{%
+   \ifx#1\@undefined
+      {\typewriterfont\string#1}~is~undefined
+   \else
+      {\typewriterfont\string#1}~is~`#1'
+   \fi
+}
+\newcommand{\fontsampleaccents}{%
+   Some accents:
+   \begin{quote}\begin{flushleft}
+         \fontsampleaccent{\"} \\
+         \fontsampleaccent{\'} \\
+         \fontsampleaccent{\.} \\
+         \fontsampleaccent{\=} \\
+         \fontsampleaccent{\H} \\
+         \fontsampleaccent{\^} \\
+         \fontsampleaccent{\`} \\
+         \fontsampleaccent{\b} \\
+         \fontsampleaccent{\c} \\
+         \fontsampleaccent{\d} \\
+         \fontsampleaccent{\k} \\
+         \fontsampleaccent{\u} \\
+         \fontsampleaccent{\v} \\
+         \fontsampleaccent{\~}
+   \end{flushleft}\end{quote}
+}
+\newcommand{\fontsampleaccent}[1]{%
+   \makebox[1em][r]{\typewriterfont\string#1}
+   \makebox[15em][l]{%
+      #1A#1C#1D#1E#1G#1I#1L#1N%
+      #1O#1R#1S#1T#1U#1Y#1Z%
+      #1a#1c#1d#1e#1g#1\i#1i#1l#1n%
+      #1o#1r#1s#1t#1u#1y#1z%
+   }
+}
+\DeclareFixedFont{\typewriterfont}
+   {\encodingdefault}{\ttdefault}{\mddefault}{\updefault}{10}
+\def\TextSymbolUnavailable#1{%
+   \textbf{?}\PackageInfo{fontsmpl}{%
+      Command \protect#1 undefined in encoding \f@encoding%
+   }%
+}
+\endinput
+%%
+%% End of file `fontsmpl.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/fontsmpl.tex b/Master/texmf-dist/tex/latex-dev/tools/fontsmpl.tex
new file mode 100644
index 00000000000..2e6d29aaddc
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/fontsmpl.tex
@@ -0,0 +1,78 @@
+%%
+%% This is file `fontsmpl.tex',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% fontsmpl.dtx  (with options: `document')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%%
+\NeedsTeXFormat{LaTeX2e}
+\documentclass{article}
+\usepackage{fontsmpl}
+\makeatletter
+\InputIfFileExists{fontsmpl.cfg}{}{}
+\makeatother
+\typein[\family]{Please enter a family name (for example `cmr').}
+\title{Test of \LaTeX{} font family `\family'}
+\author{Font sample produced with `fontsmpl'}
+\raggedright
+\begin{document}
+\maketitle
+\fontfamily{\family}\selectfont
+\fontencoding{T1}\selectfont\fontsample
+\fontencoding{OT1}\selectfont\fontsample
+\itshape
+\fontencoding{T1}\selectfont\fontsample
+\fontencoding{OT1}\selectfont\fontsample
+\slshape
+\fontencoding{T1}\selectfont\fontsample
+\fontencoding{OT1}\selectfont\fontsample
+\scshape
+\fontencoding{T1}\selectfont\fontsample
+\fontencoding{OT1}\selectfont\fontsample
+\upshape\bfseries
+\fontencoding{T1}\selectfont\fontsample
+\fontencoding{OT1}\selectfont\fontsample
+\itshape
+\fontencoding{T1}\selectfont\fontsample
+\fontencoding{OT1}\selectfont\fontsample
+\slshape
+\fontencoding{T1}\selectfont\fontsample
+\fontencoding{OT1}\selectfont\fontsample
+\scshape
+\fontencoding{T1}\selectfont\fontsample
+\fontencoding{OT1}\selectfont\fontsample
+\end{document}
+\endinput
+%%
+%% End of file `fontsmpl.tex'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/ftnright.sty b/Master/texmf-dist/tex/latex-dev/tools/ftnright.sty
new file mode 100644
index 00000000000..6824c4ad4ef
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/ftnright.sty
@@ -0,0 +1,210 @@
+%%
+%% This is file `ftnright.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% ftnright.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% Package `ftnright' to use with LaTeX 2e
+%% Copyright (C) 1989-2004 Frank Mittelbach, all rights reserved.
+\NeedsTeXFormat{LaTeX2e}[1995/06/01]
+\ProvidesPackage{ftnright}
+         [2014/10/28 v1.1f footnote layout package (FMi)]
+%%
+%%
+\def\preparefootins{%
+  \global\rcol@footinsskip\skip\footins
+  \global\skip\footins\z@
+  \global\count\footins\z@
+  \global\dimen\footins\textheight}
+\newskip\rcol@footinsskip
+\def\@outputdblcol{\if@firstcolumn
+  \global\@firstcolumnfalse
+  \global\setbox\@leftcolumn\box\@outputbox
+  \global\count\footins\@m
+  \global\skip\footins\rcol@footinsskip
+ \else \preparefootins
+  \global\@firstcolumntrue
+  \setbox\@outputbox\vbox{\hbox to\textwidth
+    {\hbox to\columnwidth
+                  {\box\@leftcolumn\hss}%
+     \hfil\vrule\@width\columnseprule\hfil
+     \hbox to\columnwidth
+                  {\box\@outputbox\hss}}}%
+  \@combinedblfloats\@outputpage
+  \begingroup
+   \@dblfloatplacement\@startdblcolumn
+   \@whilesw\if@fcolmade\fi
+    {\@outputpage\@startdblcolumn}%
+  \endgroup
+ \fi}
+\def\@startcolumn{%
+ \ifx\@deferlist\@empty
+   \global\@fcolmadefalse
+   \global\@colroom\@colht
+ \else
+   \ifvoid\footins\else
+     \ftn@amount\ht\footins
+     \advance\ftn@amount\dp\footins
+     \advance\ftn@amount\skip\footins
+   \fi
+   \global\advance\@colht-\ftn@amount
+   \global\@colroom\@colht
+   \@xstartcol
+   \global\advance\@colht\ftn@amount
+   \global\advance\@colroom\ftn@amount
+ \fi
+ \if@fcolmade
+  \setbox\@cclv\box\@outputbox
+  \@makecol
+ \else
+   \ifvoid\footins\else
+     \insert\footins{\unvbox\footins}\fi
+ \fi}
+\newdimen\ftn@amount
+
+\def\@xstartcol{%
+  \@tryfcolumn \@deferlist
+  \if@fcolmade
+  \else
+    \begingroup
+      \let \@tempb \@deferlist
+      \global \let \@deferlist \@empty
+      \let \@elt \@scolelt
+      \@tempb
+    \endgroup
+  \fi
+}
+\def\@makecol{\if@firstcolumn
+  \setbox\@outputbox\box\@cclv
+  \if@twocolumn \else
+    \ifvoid\footins \else
+      \@latexerr{ftnright package
+                 used in one-column mode}%
+   {The ftnright package was designed to
+    work with LaTeX's standard^^Jtwocolumn
+    option. It does *not* work with the
+    multicol package.^^JSo please specify
+    `twocolumn' in the
+    \noexpand\documentclass command.}%
+      \shipout\box\footins \fi\fi
+  \ifnum\insertpenalties>\z@
+      \@latexerr{ftnright package
+                 scrambled footnotes}%
+    {There is too much footnote material in
+     the first column  and ftnright^^Jis
+     unable to cope with this.^^JYou need
+     to reduce the amount to get a properly
+     formatted page.}%
+  \fi
+ \else
+  \ifvoid\footins
+    \setbox\@outputbox\box\@cclv
+  \else
+    \setbox\@outputbox\vbox
+      {\ifvoid\@cclv \else
+         \unvbox\@cclv
+         \vskip\skip\footins\fi
+         \color@begingroup
+         \normalcolor
+         \footnoterule\unvbox\footins
+         \color@endgroup}\fi
+  \fi
+  \xdef\@freelist{\@freelist\@midlist}%
+  \global \let \@midlist \@empty
+  \@combinefloats
+  \ifvbox\@kludgeins
+    \@makespecialcolbox
+  \else
+   \setbox\@outputbox\vbox to\@colht
+     {\boxmaxdepth\maxdepth
+      \@texttop
+      \@tempdima\dp\@outputbox
+      \unvbox\@outputbox
+      \vskip-\@tempdima
+      \@textbottom}%
+  \fi
+  \global\maxdepth\@maxdepth}
+\ifcase \@ptsize
+\renewcommand\footnotesize{%
+ \@setfontsize\footnotesize\@viiipt{9.9}%
+ \abovedisplayskip 6\p@\@plus2\p@\@minus4\p@
+ \abovedisplayshortskip \z@ \@plus\p@
+ \belowdisplayshortskip
+                    3\p@\@plus\p@\@minus2\p@
+ \def\@listi{\leftmargin\leftmargini
+           \topsep 3\p@ \@plus\p@ \@minus\p@
+           \parsep 2\p@ \@plus\p@ \@minus\p@
+           \itemsep \parsep}%
+ \belowdisplayskip \abovedisplayskip
+}
+\or
+\renewcommand\footnotesize{%
+ \@setfontsize\footnotesize\@ixpt{11.1}%
+ \abovedisplayskip 8\p@\@plus2\p@\@minus4\p@
+ \abovedisplayshortskip \z@ \@plus\p@
+ \belowdisplayshortskip
+                 4\p@ \@plus2\p@ \@minus2\p@
+ \def\@listi{\leftmargin\leftmargini
+          \topsep 4\p@ \@plus2\p@\@minus2\p@
+          \parsep 2\p@ \@plus\p@ \@minus\p@
+          \itemsep \parsep}%
+ \belowdisplayskip \abovedisplayskip
+}
+\or
+\renewcommand\footnotesize{%
+ \@setfontsize\footnotesize\@xpt{12.3}%
+ \abovedisplayskip10\p@\@plus2\p@\@minus5\p@
+ \abovedisplayshortskip \z@ \@plus3\p@
+ \belowdisplayshortskip
+                 6\p@ \@plus3\p@ \@minus3\p@
+ \def\@listi{\leftmargin\leftmargini
+         \topsep 6\p@ \@plus2\p@ \@minus2\p@
+         \parsep 3\p@ \@plus2\p@ \@minus\p@
+         \itemsep \parsep}%
+ \belowdisplayskip \abovedisplayskip
+}
+\fi
+\let\footnoterule\@empty
+\AtBeginDocument
+  {\global\footnotesep\ht\strutbox}
+\long\def\@makefntext#1{\parindent 1em
+   \noindent\hbox to 2em{}%
+   \llap{\@thefnmark.\,\,}#1}
+\setlength{\skip\footins}
+          {10pt plus 5pt minus 3pt}
+\AtBeginDocument{\preparefootins}
+
+\endinput
+%%
+%% End of file `ftnright.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/h.tex b/Master/texmf-dist/tex/latex-dev/tools/h.tex
new file mode 100644
index 00000000000..155b67e0a2f
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/h.tex
@@ -0,0 +1,48 @@
+%%
+%% This is file `h.tex',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% fileerr.dtx  (with options: `help')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+\newlinechar=`\^^J
+\message{! The file name provided could not be found.^^J%
+Use `<enter>' to continue processing,^^J%
+`S' to scroll  future errors^^J%
+`R' to run without stopping,^^J%
+`Q' to run quietly,^^J%
+or `X' to terminate TeX}
+\errmessage{}
+\endinput
+%%
+%% End of file `h.tex'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/hhline.sty b/Master/texmf-dist/tex/latex-dev/tools/hhline.sty
new file mode 100644
index 00000000000..f8b914de772
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/hhline.sty
@@ -0,0 +1,96 @@
+%%
+%% This is file `hhline.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% hhline.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% File: hhline.dtx Copyright (C) 1991-1994 David Carlisle
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{hhline}
+         [2014/10/28 v2.03 Table rule package (DPC)]
+\def\HH@box#1#2{\vbox{%
+  \hrule \@height \arrayrulewidth \@width #1
+  \vskip \doublerulesep
+  \hrule \@height \arrayrulewidth \@width #2}}
+\def\HH@add#1{\toks@\expandafter{\the\toks@#1}}
+
+\def\HH@xexpast#1*#2#3#4\@@{%
+   \@tempcnta #2
+   \toks@={#1}\@temptokena={#3}%
+   \let\the@toksz\relax \let\the@toks\relax
+   \def\@tempa{\the@toksz}%
+   \ifnum\@tempcnta >0 \@whilenum\@tempcnta >0\do
+     {\edef\@tempa{\@tempa\the@toks}\advance \@tempcnta \m@ne}%
+       \let \@tempb \HH@xexpast \else
+       \let \@tempb \HH@xexnoop \fi
+   \def\the@toksz{\the\toks@}\def\the@toks{\the\@temptokena}%
+   \edef\@tempa{\@tempa}%
+   \expandafter \@tempb \@tempa #4\@@}
+
+\def\HH@xexnoop#1\@@{}
+\def\hhline#1{\omit\@firstamptrue\@tempswafalse
+\global\setbox\@ne\HH@box\doublerulesep\doublerulesep
+  \xdef\@tempc{\ifx\extrarowheight\HH@undef\hskip-.5\arrayrulewidth\fi}%
+    \HH@xexpast\relax#1*0x\@@\toks@{}\expandafter\HH@let\@tempa`}
+
+\def\HH@let#1{\futurelet\@tempb\HH@loop}
+
+\def\HH@loop{%
+  \ifx\@tempb`\def\next##1{\the\toks@\cr}\else\let\next\HH@let
+  \ifx\@tempb|\if@tempswa\HH@add{\hskip\doublerulesep}\fi\@tempswatrue
+          \HH@add{\@tempc\vline\@tempc}\else
+  \ifx\@tempb:\if@tempswa\HH@add{\hskip\doublerulesep}\fi\@tempswatrue
+      \HH@add{\@tempc\HH@box\arrayrulewidth\arrayrulewidth\@tempc}\else
+  \ifx\@tempb##\if@tempswa\HH@add{\hskip\doublerulesep}\fi\@tempswatrue
+         \HH@add{\@tempc\vline\@tempc\copy\@ne\@tempc\vline\@tempc}\else
+  \ifx\@tempb~\@tempswafalse
+           \if@firstamp\@firstampfalse\else\HH@add{&\omit}\fi
+              \HH@add{\hfil}\else
+  \ifx\@tempb-\@tempswafalse
+           \if@firstamp\@firstampfalse\else\HH@add{&\omit}\fi
+              \HH@add{\leaders\hrule\@height\arrayrulewidth\hfil}\else
+  \ifx\@tempb=\@tempswafalse
+       \if@firstamp\@firstampfalse\else\HH@add{&\omit}\fi
+       \HH@add
+          {\rlap{\copy\@ne}\leaders\copy\@ne\hfil\llap{\copy\@ne}}\else
+  \ifx\@tempb t\HH@add{\rlap{\HH@box\doublerulesep\z@}}\else
+  \ifx\@tempb b\HH@add{\rlap{\HH@box\z@\doublerulesep}}\else
+  \PackageWarning{hhline}%
+      {\meaning\@tempb\space ignored in \noexpand\hhline argument%
+       \MessageBreak}%
+  \fi\fi\fi\fi\fi\fi\fi\fi\fi
+  \next}
+\endinput
+%%
+%% End of file `hhline.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/indentfirst.sty b/Master/texmf-dist/tex/latex-dev/tools/indentfirst.sty
new file mode 100644
index 00000000000..cef7e9967f8
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/indentfirst.sty
@@ -0,0 +1,46 @@
+%%
+%% This is file `indentfirst.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% indentfirst.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% File: indent.dtx Copyright (C) 1991-1994 David Carlisle
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{indentfirst}
+         [1995/11/23 v1.03 Indent first paragraph (DPC)]
+\let\@afterindentfalse\@afterindenttrue
+\@afterindenttrue
+\endinput
+%%
+%% End of file `indentfirst.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/layout.sty b/Master/texmf-dist/tex/latex-dev/tools/layout.sty
new file mode 100644
index 00000000000..dd6a6cf0a08
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/layout.sty
@@ -0,0 +1,457 @@
+%%
+%% This is file `layout.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% layout.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{layout}
+                [2014/10/28 v1.2c Show layout parameters]
+\DeclareOption{dutch}{%
+  \def\Headertext{Kopregel}
+  \def\Bodytext{Broodtekst}
+  \def\Footertext{Voetregel}
+  \def\MarginNotestext{Marge\\Notities}
+  \def\oneinchtext{een inch}
+  \def\notshown{niet getoond}
+  }
+\DeclareOption{german}{%
+  \def\Headertext{Kopfzeile}
+  \def\Bodytext{Haupttext}
+  \def\Footertext{Fu{\ss}zeile}
+  \def\MarginNotestext{Rand-\\ notizen}
+  \def\oneinchtext{ein Zoll}
+  \def\notshown{ohne Abbildung}
+  }
+\DeclareOption{ngerman}{\ExecuteOptions{german}}
+\DeclareOption{english}{%
+  \def\Headertext{Header}
+  \def\Bodytext{Body}
+  \def\Footertext{Footer}
+  \def\MarginNotestext{Margin\\Notes}
+  \def\oneinchtext{one inch}
+  \def\notshown{not shown}
+  }
+\DeclareOption{french}{%
+  \def\Headertext{Ent\^{e}te}
+  \def\Bodytext{Corps}
+  \def\Footertext{Pied de page}
+  \def\MarginNotestext{Marge\\Notes}
+  \def\oneinchtext{un pouce}
+  \def\notshown{non affich\'{e}}
+  }
+\DeclareOption{francais}{\ExecuteOptions{french}}
+\DeclareOption{spanish}{%
+  \def\Headertext{Encabezamiento}
+  \def\Bodytext{Cuerpo}
+  \def\Footertext{Pie de p\'agina}
+  \def\MarginNotestext{Notas\\ Marginales}
+  \def\oneinchtext{una pulgada}
+  \def\notshown{no mostradas}
+  }
+\DeclareOption{portuguese}{%
+  \def\Headertext{Cabe\c{c}alho}
+  \def\Bodytext{Corpo}
+  \def\Footertext{Rodap\'e}
+  \def\MarginNotestext{Notas\\ Marginais}
+  \def\oneinchtext{uma polegada}
+  \def\notshown{n\~ao mostradas}
+  }
+\DeclareOption{brazilian}{%
+  \def\Headertext{Cabe\c{c}alho}
+  \def\Bodytext{Corpo}
+  \def\Footertext{Rodap\'e}
+  \def\MarginNotestext{Notas\\ Marginais}
+  \def\oneinchtext{uma polegada}
+  \def\notshown{n\~ao mostradas}
+  }
+\DeclareOption{italian}{%
+  \def\Headertext{Testatina}
+  \def\Bodytext{Corpo}
+  \def\Footertext{Piedino}
+  \def\MarginNotestext{Note\\ Marginali}
+  \def\oneinchtext{un pollice}
+  \def\notshown{non mostrato}
+  }
+\DeclareOption{verbose}{\let\LayOuttype\typeout}
+\DeclareOption{silent}{\let\LayOuttype\@gobble}
+\def\lay@value{}
+\DeclareOption{integers}{%
+  \renewcommand*{\lay@value}[2]{%
+    \expandafter\number\csname #1@#2\endcsname pt}}
+\DeclareOption{reals}{%
+  \renewcommand*{\lay@value}[2]{\the\csname #2\endcsname}}
+\ExecuteOptions{english,silent,integers}
+\ProcessOptions
+\newcommand\LayOutbs{}
+\chardef\LayOutbs`\\
+\def\ConvertToCount#1#2{%
+  #1=#2
+  \divide #1 by 65536}
+\def\SetToHalf#1#2{#1=#2\relax\divide#1by\tw@}
+\def\SetToQuart#1#2{#1=#2\relax\divide#1by4}
+\def\Identify#1{%
+  \put(\PositionX,\PositionY){\circle{20}}
+  \put(\PositionX,\PositionY){\makebox(0,0){\tiny #1}}
+}
+\def\InsideHArrow#1{{%
+  \ArrowLength = #1
+  \divide\ArrowLength by \tw@
+  \advance\ArrowLength by -10
+  \advance\PositionX by -10
+  \ifnum\ArrowLength<\z@
+    \put(\PositionX,\PositionY){\vector(1,0){-\ArrowLength}}
+    \advance\PositionX by 20
+    \put(\PositionX,\PositionY){\vector(-1,0){-\ArrowLength}}
+  \else
+    \put(\PositionX,\PositionY){\vector(-1,0){\ArrowLength}}
+    \advance\PositionX by 20
+    \put(\PositionX,\PositionY){\vector(+1,0){\ArrowLength}}
+  \fi
+}}
+\def\InsideVArrow#1{{%
+  \ArrowLength = #1
+  \divide\ArrowLength by \tw@
+  \advance\ArrowLength by -10
+  \advance\PositionY by -10
+  \put(\PositionX,\PositionY){\vector(0,-1){\ArrowLength}}
+  \advance\PositionY by 20
+  \put(\PositionX,\PositionY){\vector(0,+1){\ArrowLength}}
+}}
+\def\OutsideHArrow#1#2#3{{%
+  \PositionX = #1
+  \advance\PositionX by #3
+  \put(\PositionX,\PositionY){\vector(-1,0){#3}}
+  \PositionX = #1 \advance\PositionX-#2
+  \advance\PositionX by -#3
+  \put(\PositionX,\PositionY){\vector(+1,0){#3}}
+}}
+\def\OutsideVArrow#1#2#3#4{{%
+  \PositionY = #1
+  \advance\PositionY by -#3
+  \put(\PositionX,\PositionY){\vector(0,+1){#3}}
+  \PositionY = #1
+  \advance\PositionY#2
+  \advance\PositionY#4
+  \put(\PositionX,\PositionY){\vector(0,-1){#4}}
+}}
+\def\Show#1#2{\LayOutbs #2 = \lay@value{#1}{#2}}
+\def\Type#1#2{%
+  \LayOuttype{#2 = \lay@value{#1}{#2}}}
+\newcount\oneinch
+\oneinch=72
+\newcount\cnt@paperwidth
+\newcount\cnt@paperheight
+\ConvertToCount\cnt@paperwidth\paperwidth
+\ConvertToCount\cnt@paperheight\paperheight
+\newcount\cnt@hoffset
+\newcount\cnt@voffset
+\ConvertToCount\cnt@hoffset\hoffset
+\ConvertToCount\cnt@voffset\voffset
+\newcount\cnt@textheight
+\newcount\cnt@textwidth
+\newcount\cnt@topmargin
+\newcount\cnt@oddsidemargin
+\newcount\cnt@evensidemargin
+\newcount\cnt@headheight
+\newcount\cnt@headsep
+\newcount\cnt@marginparsep
+\newcount\cnt@marginparwidth
+\newcount\cnt@marginparpush
+\newcount\cnt@footskip
+\newcount\fheight
+\fheight=12
+\newcount\ref@top
+\ref@top=\cnt@paperheight \advance\ref@top by -\oneinch
+\newcount\ref@hoffset
+\newcount\ref@voffset
+\ref@hoffset=\cnt@hoffset  \advance\cnt@hoffset by \oneinch
+\ref@voffset=\cnt@voffset
+\cnt@voffset=\ref@top
+\advance\cnt@voffset by -\ref@voffset
+\newcount\ref@head
+\newcount\ref@body
+\newcount\ref@foot
+\newcount\ref@margin
+\newcount\ref@marginwidth
+\newcount\ref@marginpar
+\newcount\Interval
+\newcount\ExtraYPos
+\newcount\PositionX
+\newcount\PositionY
+\newcount\ArrowLength
+\def\lay@getvalues{%
+  \ConvertToCount\cnt@textheight\textheight
+  \ConvertToCount\cnt@textwidth\textwidth
+  \ConvertToCount\cnt@topmargin\topmargin
+  \ConvertToCount\cnt@oddsidemargin\oddsidemargin
+  \ConvertToCount\cnt@evensidemargin\evensidemargin
+  \ConvertToCount\cnt@headheight\headheight
+  \ConvertToCount\cnt@headsep\headsep
+  \ConvertToCount\cnt@marginparsep\marginparsep
+  \ConvertToCount\cnt@marginparwidth\marginparwidth
+  \ConvertToCount\cnt@marginparpush\marginparpush
+  \ConvertToCount\cnt@footskip\footskip
+  \ref@head=\ref@top
+    \advance\ref@head by -\ref@voffset
+    \advance\ref@head by -\cnt@topmargin
+    \advance\ref@head by -\cnt@headheight
+  \ref@body=\ref@head
+    \advance\ref@body by -\cnt@headsep
+    \advance\ref@body by -\cnt@textheight
+  \ref@foot=\ref@body
+    \advance\ref@foot by -\cnt@footskip
+  }
+\AtBeginDocument{\lay@getvalues}
+\newcommand\layout{%
+  \@ifstar{\lay@getvalues\lay@xlayout}{\lay@xlayout}}
+\def\lay@xlayout{%
+  \lay@layout
+  \if@twoside
+    \lay@layout
+  \fi}
+\newcommand\lay@layout{%
+  \thispagestyle{empty}
+  \if@twoside
+    \ifodd\count\z@
+      \typeout{Two-sided document style, odd page.}
+      \ref@marginwidth=\cnt@oddsidemargin
+      \ref@marginpar=\oneinch
+      \advance\ref@marginpar by \ref@hoffset
+      \advance\ref@marginpar by \cnt@oddsidemargin
+      \ref@margin\ref@marginpar
+      \if@reversemargin
+        \advance\ref@marginpar by -\cnt@marginparsep
+        \advance\ref@marginpar by -\cnt@marginparwidth
+      \else
+        \advance\ref@marginpar by \cnt@textwidth
+        \advance\ref@marginpar by \cnt@marginparsep
+      \fi
+    \else
+  \typeout{Two-sided document style, even page.}
+      \ref@marginwidth=\cnt@evensidemargin
+      \ref@marginpar=\oneinch
+      \advance\ref@marginpar by \ref@hoffset
+      \advance\ref@marginpar by \cnt@evensidemargin
+      \ref@margin\ref@marginpar
+      \if@reversemargin
+        \advance\ref@marginpar by \cnt@textwidth
+        \advance\ref@marginpar by \cnt@marginparsep
+      \else
+        \advance\ref@marginpar by -\cnt@marginparsep
+        \advance\ref@marginpar by -\cnt@marginparwidth
+      \fi
+    \fi
+  \else
+    \typeout{One-sided document style.}
+    \ref@marginwidth=\cnt@oddsidemargin
+    \ref@marginpar=\oneinch
+    \advance\ref@marginpar by \ref@hoffset
+    \advance\ref@marginpar by \cnt@oddsidemargin
+    \ref@margin\ref@marginpar
+    \if@reversemargin
+      \advance\ref@marginpar by -\cnt@marginparsep
+      \advance\ref@marginpar by -\cnt@marginparwidth
+    \else
+      \advance\ref@marginpar by \cnt@textwidth
+      \advance\ref@marginpar by \cnt@marginparsep
+    \fi
+  \fi
+  \setlength{\unitlength}{.5pt}
+  \begin{picture}(\cnt@paperwidth,\cnt@paperheight)
+    \centering
+    \thicklines
+    \put(0,0){\framebox(\cnt@paperwidth,\cnt@paperheight){\mbox{}}}
+    \put(0,\cnt@voffset){\dashbox{10}(\cnt@paperwidth,0){\mbox{}}}
+    \put(\cnt@hoffset,0){\dashbox{10}(0,\cnt@paperheight){\mbox{}}}
+    \put(\ref@margin,\ref@head){%
+      \framebox(\cnt@textwidth,\cnt@headheight)%
+        {\footnotesize\Headertext}}
+    \put(\ref@margin,\ref@body){%
+      \framebox(\cnt@textwidth,\cnt@textheight){\Bodytext}}
+    \put(\ref@margin,\ref@foot){%
+      \framebox(\cnt@textwidth,\fheight){\footnotesize\Footertext}}
+    \put(\ref@marginpar,\ref@body){%
+      \framebox(\cnt@marginparwidth,\cnt@textheight)%
+               {\footnotesize\shortstack{\MarginNotestext}}}
+    \thinlines
+    \SetToHalf\PositionX\cnt@textwidth
+    \advance\PositionX by \ref@margin
+    \PositionY = \ref@body
+    \advance\PositionY by 50
+    \Identify{8}
+    \InsideHArrow\cnt@textwidth
+    \SetToHalf\PositionY\cnt@textheight
+    \advance\PositionY by \ref@body
+    \PositionX = \cnt@textwidth
+    \divide\PositionX by 5
+    \multiply \PositionX by 4
+    \advance\PositionX by \ref@margin
+    \Identify{7}
+    \InsideVArrow\cnt@textheight
+    \PositionY = 50
+    \SetToHalf\PositionX\cnt@hoffset
+    \Identify{1}
+    \InsideHArrow\cnt@hoffset
+    \SetToQuart\PositionY\cnt@textheight
+    \advance\PositionY by \ref@body
+    \ifnum\ref@marginwidth > 0
+      \OutsideHArrow\ref@margin\ref@marginwidth{20}
+      \PositionX = \cnt@hoffset
+    \else
+      \OutsideHArrow\cnt@hoffset{-\ref@marginwidth}{20}
+      \PositionX = \ref@margin
+    \fi
+    \advance\PositionX by -30
+    \Identify{3}
+    \SetToQuart\PositionY\cnt@textheight
+    \advance\PositionY by \ref@body
+    \advance\PositionY by 30
+    \SetToHalf\PositionX\cnt@marginparwidth
+    \advance\PositionX by \ref@marginpar
+    \Identify{10}
+    \InsideHArrow\cnt@marginparwidth
+    \advance\PositionY by 30
+    \if@twoside
+      \if@reversemargin
+        \ifodd\count\z@
+          \OutsideHArrow\ref@margin\cnt@marginparsep{20}
+          \PositionX = \ref@margin
+        \else
+          \OutsideHArrow\ref@marginpar\cnt@marginparsep{20}
+          \PositionX = \ref@marginpar
+        \fi
+      \else
+        \ifodd\count\z@
+          \OutsideHArrow\ref@marginpar\cnt@marginparsep{20}
+          \PositionX = \ref@marginpar
+        \else
+          \OutsideHArrow\ref@margin\cnt@marginparsep{20}
+          \PositionX = \ref@margin
+        \fi
+      \fi
+    \else
+      \if@reversemargin
+        \OutsideHArrow\ref@margin\cnt@marginparsep{20}
+        \PositionX = \ref@margin
+      \else
+        \OutsideHArrow\ref@marginpar\cnt@marginparsep{20}
+        \PositionX = \ref@marginpar
+      \fi
+    \fi
+    \advance\PositionX by -\cnt@marginparsep
+    \advance\PositionX by -30
+    \Identify{9}
+    \PositionX = \cnt@textwidth
+    \divide\PositionX by 8
+    \advance\PositionX by \ref@margin
+    \OutsideVArrow\ref@foot\cnt@footskip{20}{20}
+    \PositionY = \ref@foot
+    \advance\PositionY by \cnt@footskip
+    \advance\PositionY by 30
+    \Identify{11}
+    \PositionX = \cnt@paperwidth
+    \advance\PositionX by -50
+    \PositionY = \cnt@paperheight
+    \ExtraYPos = \PositionY
+    \advance\ExtraYPos by -\cnt@voffset
+    \advance\PositionY by \cnt@voffset
+    \divide\PositionY by \tw@
+    \Identify{2}
+    \InsideVArrow\ExtraYPos
+    \Interval = \cnt@textwidth
+    \divide\Interval by 8
+    \PositionX = \ref@margin
+    \advance\PositionX by \Interval
+    \ifnum\cnt@topmargin > \z@
+      \ExtraYPos = \ref@head
+      \advance\ExtraYPos\cnt@headheight
+      \OutsideVArrow\ExtraYPos\cnt@topmargin{20}{20}
+      \PositionY = \ExtraYPos
+      \advance\PositionY by \cnt@topmargin
+    \else
+      \ExtraYPos = \cnt@voffset
+      \OutsideVArrow\ExtraYPos{-\cnt@topmargin}{20}{20}
+      \PositionY = \ExtraYPos
+      \advance\PositionY by -\cnt@topmargin
+    \fi
+    \advance\PositionY by 30
+    \Identify{4}
+    \advance\PositionX by \Interval
+    \OutsideVArrow\ref@head\cnt@headheight{20}{20}
+    \PositionY = \ref@head
+    \advance\PositionY by \cnt@headheight
+    \advance\PositionY by 30
+    \Identify{5}
+    \advance\PositionX by \Interval
+    \ExtraYPos=\ref@body
+    \advance\ExtraYPos\cnt@textheight
+    \OutsideVArrow\ExtraYPos\cnt@headsep{20}{20}
+    \PositionY = \ref@body
+    \advance\PositionY by \cnt@textheight
+    \advance\PositionY by -30
+    \Identify{6}
+  \end{picture}
+
+  \medskip
+  \vtop to 0pt{%
+    \@minipagerestore\footnotesize\ttfamily
+    \begin{tabular}{@{}rl@{\hspace{20pt}}rl}
+      1 & \oneinchtext\ + \LayOutbs\texttt{hoffset}
+        & 2 & \oneinchtext\ + \LayOutbs\texttt{voffset} \\
+      3 & \if@twoside
+            \ifodd\count\z@ \Show{cnt}{oddsidemargin}
+            \else \Show{cnt}{evensidemargin}
+            \fi
+          \else
+            \Show{cnt}{oddsidemargin}
+          \fi                    & 4 & \Show{cnt}{topmargin} \\
+      5 & \Show{cnt}{headheight} & 6 & \Show{cnt}{headsep} \\
+      7 & \Show{cnt}{textheight} & 8 & \Show{cnt}{textwidth} \\
+      9 & \Show{cnt}{marginparsep}&10& \Show{cnt}{marginparwidth} \\
+      11& \Show{cnt}{footskip}   &   & \Show{cnt}{marginparpush}
+       \rlap{(\notshown)}\\
+        & \Show{ref}{hoffset}    &   & \Show{ref}{voffset} \\
+        & \Show{cnt}{paperwidth} &   & \Show{cnt}{paperheight} \\
+
+  \end{tabular}\vss}
+  \Type{ref}{hoffset}
+  \Type{ref}{voffset}
+  \Type{cnt}{textheight}
+  \Type{cnt}{textwidth}
+  \newpage
+}
+\endinput
+%%
+%% End of file `layout.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/longtable.sty b/Master/texmf-dist/tex/latex-dev/tools/longtable.sty
new file mode 100644
index 00000000000..9d18504b2c7
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/longtable.sty
@@ -0,0 +1,448 @@
+%%
+%% This is file `longtable.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% longtable.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% File: longtable.dtx Copyright (C) 1990-2019 David Carlisle
+\NeedsTeXFormat{LaTeX2e}[1995/06/01]
+\ProvidesPackage{longtable}
+          [2019/02/06 v4.12 Multi-page Table package (DPC)]
+\def\LT@err{\PackageError{longtable}}
+\def\LT@warn{\PackageWarning{longtable}}
+\def\LT@final@warn{%
+  \AtEndDocument{%
+    \LT@warn{Table \@width s have changed. Rerun LaTeX.\@gobbletwo}}%
+  \global\let\LT@final@warn\relax}
+\DeclareOption{errorshow}{%
+  \def\LT@warn{\PackageInfo{longtable}}}
+\DeclareOption{pausing}{%
+  \def\LT@warn#1{%
+    \LT@err{#1}{This is not really an error}}}
+\DeclareOption{set}{}
+\DeclareOption{final}{}
+\ProcessOptions
+\newskip\LTleft       \LTleft=\fill
+\newskip\LTright      \LTright=\fill
+\newskip\LTpre        \LTpre=\bigskipamount
+\newskip\LTpost       \LTpost=\bigskipamount
+\newcount\LTchunksize \LTchunksize=20
+\let\c@LTchunksize\LTchunksize
+\newdimen\LTcapwidth  \LTcapwidth=4in
+\newbox\LT@head
+\newbox\LT@firsthead
+\newbox\LT@foot
+\newbox\LT@lastfoot
+\newcount\LT@cols
+\newcount\LT@rows
+\newcounter{LT@tables}
+\newcounter{LT@chunks}[LT@tables]
+\ifx\c@table\undefined
+  \newcounter{table}
+  \def\fnum@table{\tablename~\thetable}
+\fi
+\ifx\tablename\undefined
+  \def\tablename{Table}
+\fi
+\newtoks\LT@p@ftn
+\mathchardef\LT@end@pen=30000
+\def\longtable{%
+  \par
+  \ifx\multicols\@undefined
+  \else
+     \ifnum\col@number>\@ne
+       \@twocolumntrue
+     \fi
+  \fi
+  \if@twocolumn
+    \LT@err{longtable not in 1-column mode}\@ehc
+  \fi
+  \begingroup
+  \@ifnextchar[\LT@array{\LT@array[x]}}
+\def\LT@array[#1]#2{%
+  \refstepcounter{table}\stepcounter{LT@tables}%
+  \if l#1%
+    \LTleft\z@ \LTright\fill
+  \else\if r#1%
+    \LTleft\fill \LTright\z@
+  \else\if c#1%
+    \LTleft\fill \LTright\fill
+  \fi\fi\fi
+  \let\LT@mcol\multicolumn
+  \let\LT@@tabarray\@tabarray
+  \let\LT@@hl\hline
+  \def\@tabarray{%
+    \let\hline\LT@@hl
+    \LT@@tabarray}%
+  \let\\\LT@tabularcr\let\tabularnewline\\%
+  \def\newpage{\noalign{\break}}%
+  \def\pagebreak{\noalign{\ifnum`}=0\fi\@testopt{\LT@no@pgbk-}4}%
+  \def\nopagebreak{\noalign{\ifnum`}=0\fi\@testopt\LT@no@pgbk4}%
+  \let\hline\LT@hline \let\kill\LT@kill\let\caption\LT@caption
+  \@tempdima\ht\strutbox
+  \let\@endpbox\LT@endpbox
+  \ifx\extrarowheight\@undefined
+    \let\@acol\@tabacol
+    \let\@classz\@tabclassz \let\@classiv\@tabclassiv
+    \def\@startpbox{\vtop\LT@startpbox}%
+    \let\@@startpbox\@startpbox
+    \let\@@endpbox\@endpbox
+    \let\LT@LL@FM@cr\@tabularcr
+  \else
+    \advance\@tempdima\extrarowheight
+    \col@sep\tabcolsep
+    \let\@startpbox\LT@startpbox\let\LT@LL@FM@cr\@arraycr
+  \fi
+  \setbox\@arstrutbox\hbox{\vrule
+    \@height \arraystretch \@tempdima
+    \@depth \arraystretch \dp \strutbox
+    \@width \z@}%
+  \let\@sharp##\let\protect\relax
+   \begingroup
+    \@mkpream{#2}%
+    \xdef\LT@bchunk{%
+       \global\advance\c@LT@chunks\@ne
+       \global\LT@rows\z@\setbox\z@\vbox\bgroup
+       \LT@setprevdepth
+       \tabskip\LTleft \noexpand\halign to\hsize\bgroup
+      \tabskip\z@ \@arstrut \@preamble \tabskip\LTright \cr}%
+  \endgroup
+  \expandafter\LT@nofcols\LT@bchunk&\LT@nofcols
+  \LT@make@row
+  \m@th\let\par\@empty
+  \everycr{}\lineskip\z@\baselineskip\z@
+  \LT@bchunk}
+\def\LT@no@pgbk#1[#2]{\penalty #1\@getpen{#2}\ifnum`{=0\fi}}
+\def\LT@start{%
+  \let\LT@start\endgraf
+  \endgraf\penalty\z@\vskip\LTpre
+  \dimen@\pagetotal
+  \advance\dimen@ \ht\ifvoid\LT@firsthead\LT@head\else\LT@firsthead\fi
+  \advance\dimen@ \dp\ifvoid\LT@firsthead\LT@head\else\LT@firsthead\fi
+  \advance\dimen@ \ht\LT@foot
+  \dimen@ii\vfuzz
+  \vfuzz\maxdimen
+    \setbox\tw@\copy\z@
+    \setbox\tw@\vsplit\tw@ to \ht\@arstrutbox
+    \setbox\tw@\vbox{\unvbox\tw@}%
+  \vfuzz\dimen@ii
+  \advance\dimen@ \ht
+        \ifdim\ht\@arstrutbox>\ht\tw@\@arstrutbox\else\tw@\fi
+  \advance\dimen@\dp
+        \ifdim\dp\@arstrutbox>\dp\tw@\@arstrutbox\else\tw@\fi
+  \advance\dimen@ -\pagegoal
+  \ifdim \dimen@>\z@\vfil\break\fi
+      \global\@colroom\@colht
+  \ifvoid\LT@foot\else
+    \advance\vsize-\ht\LT@foot
+    \global\advance\@colroom-\ht\LT@foot
+    \dimen@\pagegoal\advance\dimen@-\ht\LT@foot\pagegoal\dimen@
+    \maxdepth\z@
+  \fi
+  \ifvoid\LT@firsthead\copy\LT@head\else\box\LT@firsthead\fi\nobreak
+  \output{\LT@output}}
+\def\endlongtable{%
+  \crcr
+  \noalign{%
+    \let\LT@entry\LT@entry@chop
+    \xdef\LT@save@row{\LT@save@row}}%
+  \LT@echunk
+  \LT@start
+  \unvbox\z@
+  \LT@get@widths
+  \if@filesw
+    {\let\LT@entry\LT@entry@write\immediate\write\@auxout{%
+      \gdef\expandafter\noexpand
+        \csname LT@\romannumeral\c@LT@tables\endcsname
+          {\LT@save@row}}}%
+  \fi
+  \ifx\LT@save@row\LT@@save@row
+  \else
+    \LT@warn{Column \@width s have changed\MessageBreak
+             in table \thetable}%
+    \LT@final@warn
+  \fi
+  \endgraf\penalty -\LT@end@pen
+  \endgroup
+  \global\@mparbottom\z@
+  \pagegoal\vsize
+  \endgraf\penalty\z@\addvspace\LTpost
+  \ifvoid\footins\else\insert\footins{}\fi}
+\def\LT@nofcols#1&{%
+  \futurelet\@let@token\LT@n@fcols}
+\def\LT@n@fcols{%
+  \advance\LT@cols\@ne
+  \ifx\@let@token\LT@nofcols
+    \expandafter\@gobble
+  \else
+    \expandafter\LT@nofcols
+  \fi}
+\def\LT@tabularcr{%
+  \relax\iffalse{\fi\ifnum0=`}\fi
+  \@ifstar
+    {\def\crcr{\LT@crcr\noalign{\nobreak}}\let\cr\crcr
+     \LT@t@bularcr}%
+    {\LT@t@bularcr}}
+\let\LT@crcr\crcr
+\let\LT@setprevdepth\relax
+\def\LT@t@bularcr{%
+  \global\advance\LT@rows\@ne
+  \ifnum\LT@rows=\LTchunksize
+    \gdef\LT@setprevdepth{%
+      \prevdepth\z@\global
+      \global\let\LT@setprevdepth\relax}%
+    \expandafter\LT@xtabularcr
+  \else
+    \ifnum0=`{}\fi
+    \expandafter\LT@LL@FM@cr
+  \fi}
+\def\LT@xtabularcr{%
+  \@ifnextchar[\LT@argtabularcr\LT@ntabularcr}
+\def\LT@ntabularcr{%
+  \ifnum0=`{}\fi
+  \LT@echunk
+  \LT@start
+  \unvbox\z@
+  \LT@get@widths
+  \LT@bchunk}
+\def\LT@argtabularcr[#1]{%
+  \ifnum0=`{}\fi
+  \ifdim #1>\z@
+    \unskip\@xargarraycr{#1}%
+  \else
+    \@yargarraycr{#1}%
+  \fi
+  \LT@echunk
+  \LT@start
+  \unvbox\z@
+  \LT@get@widths
+  \LT@bchunk}
+\def\LT@echunk{%
+  \crcr\LT@save@row\cr\egroup
+  \global\setbox\@ne\lastbox
+    \unskip
+  \egroup}
+\def\LT@entry#1#2{%
+  \ifhmode\@firstofone{&}\fi\omit
+  \ifnum#1=\c@LT@chunks
+  \else
+    \kern#2\relax
+  \fi}
+\def\LT@entry@chop#1#2{%
+  \noexpand\LT@entry
+    {\ifnum#1>\c@LT@chunks
+       1}{0pt%
+     \else
+       #1}{#2%
+     \fi}}
+\def\LT@entry@write{%
+  \noexpand\LT@entry^^J%
+  \@spaces}
+\def\LT@kill{%
+  \LT@echunk
+  \LT@get@widths
+  \expandafter\LT@rebox\LT@bchunk}
+\def\LT@rebox#1\bgroup{%
+  #1\bgroup
+  \unvbox\z@
+  \unskip
+  \setbox\z@\lastbox}
+\def\LT@blank@row{%
+  \xdef\LT@save@row{\expandafter\LT@build@blank
+    \romannumeral\number\LT@cols 001 }}
+\def\LT@build@blank#1{%
+  \if#1m%
+    \noexpand\LT@entry{1}{0pt}%
+    \expandafter\LT@build@blank
+  \fi}
+\def\LT@make@row{%
+  \global\expandafter\let\expandafter\LT@save@row
+    \csname LT@\romannumeral\c@LT@tables\endcsname
+  \ifx\LT@save@row\relax
+    \LT@blank@row
+  \else
+    {\let\LT@entry\or
+     \if!%
+         \ifcase\expandafter\expandafter\expandafter\LT@cols
+         \expandafter\@gobble\LT@save@row
+         \or
+         \else
+           \relax
+         \fi
+        !%
+     \else
+       \aftergroup\LT@blank@row
+     \fi}%
+  \fi}
+\let\setlongtables\relax
+\def\LT@get@widths{%
+  \setbox\tw@\hbox{%
+    \unhbox\@ne
+    \let\LT@old@row\LT@save@row
+    \global\let\LT@save@row\@empty
+    \count@\LT@cols
+    \loop
+      \unskip
+      \setbox\tw@\lastbox
+    \ifhbox\tw@
+      \LT@def@row
+      \advance\count@\m@ne
+    \repeat}%
+  \ifx\LT@@save@row\@undefined
+    \let\LT@@save@row\LT@save@row
+  \fi}
+\def\LT@def@row{%
+  \let\LT@entry\or
+  \edef\@tempa{%
+    \ifcase\expandafter\count@\LT@old@row
+    \else
+      {1}{0pt}%
+    \fi}%
+  \let\LT@entry\relax
+  \xdef\LT@save@row{%
+    \LT@entry
+    \expandafter\LT@max@sel\@tempa
+    \LT@save@row}}
+\def\LT@max@sel#1#2{%
+  {\ifdim#2=\wd\tw@
+     #1%
+   \else
+     \number\c@LT@chunks
+   \fi}%
+  {\the\wd\tw@}}
+\def\LT@hline{%
+  \noalign{\ifnum0=`}\fi
+    \penalty\@M
+    \futurelet\@let@token\LT@@hline}
+\def\LT@@hline{%
+  \ifx\@let@token\hline
+    \global\let\@gtempa\@gobble
+    \gdef\LT@sep{\penalty-\@medpenalty\vskip\doublerulesep}%
+  \else
+    \global\let\@gtempa\@empty
+    \gdef\LT@sep{\penalty-\@lowpenalty\vskip-\arrayrulewidth}%
+  \fi
+  \ifnum0=`{\fi}%
+  \multispan\LT@cols
+     \unskip\leaders\hrule\@height\arrayrulewidth\hfill\cr
+  \noalign{\LT@sep}%
+  \multispan\LT@cols
+     \unskip\leaders\hrule\@height\arrayrulewidth\hfill\cr
+  \noalign{\penalty\@M}%
+  \@gtempa}
+\def\LT@caption{%
+  \noalign\bgroup
+    \@ifnextchar[{\egroup\LT@c@ption\@firstofone}\LT@capti@n}
+\def\LT@c@ption#1[#2]#3{%
+  \LT@makecaption#1\fnum@table{#3}%
+  \def\@tempa{#2}%
+  \ifx\@tempa\@empty\else
+     {\let\\\space
+     \addcontentsline{lot}{table}{\protect\numberline{\thetable}{#2}}}%
+  \fi}
+\def\LT@capti@n{%
+  \@ifstar
+    {\egroup\LT@c@ption\@gobble[]}%
+    {\egroup\@xdblarg{\LT@c@ption\@firstofone}}}
+\def\LT@makecaption#1#2#3{%
+  \LT@mcol\LT@cols c{\hbox to\z@{\hss\parbox[t]\LTcapwidth{%
+    \sbox\@tempboxa{#1{#2: }#3}%
+    \ifdim\wd\@tempboxa>\hsize
+      #1{#2: }#3%
+    \else
+      \hbox to\hsize{\hfil\box\@tempboxa\hfil}%
+    \fi
+    \endgraf\vskip\baselineskip}%
+  \hss}}}
+\def\LT@output{%
+  \ifnum\outputpenalty <-\@Mi
+    \ifnum\outputpenalty > -\LT@end@pen
+      \LT@err{floats and marginpars not allowed in a longtable}\@ehc
+    \else
+      \setbox\z@\vbox{\unvbox\@cclv}%
+      \ifdim \ht\LT@lastfoot>\ht\LT@foot
+        \dimen@\pagegoal
+        \advance\dimen@-\ht\LT@lastfoot
+        \ifdim\dimen@<\ht\z@
+          \setbox\@cclv\vbox{\unvbox\z@\copy\LT@foot\vss}%
+          \@makecol
+          \@outputpage
+          \setbox\z@\vbox{\box\LT@head}%
+        \fi
+      \fi
+      \global\@colroom\@colht
+      \global\vsize\@colht
+      \vbox
+        {\unvbox\z@\box\ifvoid\LT@lastfoot\LT@foot\else\LT@lastfoot\fi}%
+    \fi
+  \else
+    \setbox\@cclv\vbox{\unvbox\@cclv\copy\LT@foot\vss}%
+    \@makecol
+    \@outputpage
+      \global\vsize\@colroom
+    \copy\LT@head\nobreak
+  \fi}
+\def\LT@end@hd@ft#1{%
+  \LT@echunk
+  \ifx\LT@start\endgraf
+    \LT@err
+     {Longtable head or foot not at start of table}%
+     {Increase LTchunksize}%
+  \fi
+  \setbox#1\box\z@
+  \LT@get@widths
+  \LT@bchunk}
+\def\endfirsthead{\LT@end@hd@ft\LT@firsthead}
+\def\endhead{\LT@end@hd@ft\LT@head}
+\def\endfoot{\LT@end@hd@ft\LT@foot}
+\def\endlastfoot{\LT@end@hd@ft\LT@lastfoot}
+\def\LT@startpbox#1{%
+  \bgroup
+    \color@begingroup
+    \let\@footnotetext\LT@p@ftntext
+    \setlength\hsize{#1}%
+    \@arrayparboxrestore
+    \vrule \@height \ht\@arstrutbox \@width \z@}
+\def\LT@endpbox{%
+  \@finalstrut\@arstrutbox
+  \color@endgroup
+  \egroup
+  \the\LT@p@ftn
+  \global\LT@p@ftn{}%
+  \hfil}
+\def\LT@p@ftntext#1{%
+  \edef\@tempa{\the\LT@p@ftn\noexpand\footnotetext[\the\c@footnote]}%
+  \global\LT@p@ftn\expandafter{\@tempa{#1}}}%
+\endinput
+%%
+%% End of file `longtable.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/multicol-2017-04-11.sty b/Master/texmf-dist/tex/latex-dev/tools/multicol-2017-04-11.sty
new file mode 100644
index 00000000000..e8558e4ce04
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/multicol-2017-04-11.sty
@@ -0,0 +1,1042 @@
+%%
+%% This is an old release of `multicol.sty',
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at http://latex-project.org/bugs.html
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% Copyright 1993-2016
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    http://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% 
+%% Package `multicol' to use with LaTeX2e
+%% Copyright 1989-2016 Frank Mittelbach
+%%
+%%  In addition to the terms of LPPL any distributed version
+%%  (unchanged or modified) of multicol has to keep the statement
+%%  about the moral obligation for using multicol. In case of major
+%%  changes where this would not be appropriate the author of the
+%%  changed version should contact the copyright holder.
+%%
+%%
+%%  Moral obligation for using multicol:
+%%  ------------------------------------
+%%
+%%  Users of multicol who wish to include or use multicol or a modified
+%%  version in a proprietary and commercially market product are asked
+%%  under certain conditions (see below) for the payment of a license
+%%  fee.  The size of this fee is to be determined, in each instance,
+%%  by the commercial user, depending on his/her judgment of the value of
+%%  multicol for his/her product.
+%%
+%%
+%%  The conditions for this are as follows:
+%%
+%%   The producer of a proprietary and commercially market product
+%%   that involves typesetting using multicol is asked to determine
+%%   the value of a license fee for using multicol if
+%%
+%%   - the product is a document and the producer has decided to
+%%     include multicol to typeset (parts of) the document or has
+%%     directed the author of the document to include multicol (for
+%%     example, by providing a class file to be used by the author)
+%%
+%%   - the product is a LaTeX class or package that includes multicol
+%%
+%%
+%%   There is no moral obligation in case
+%%
+%%   - the product is a document but producer has not directed
+%%     the author to include multicol (in that case the moral obligation
+%%     lies with the author of the document)
+%%
+%%   - the product does not involve typesetting, e.g., consists, for
+%%     example, of distributing multicol and its documentation.
+%%
+%%   - the product is not proprietary, i.e., is made available as free
+%%     software itself (which doesn't prohibit its commercial marketing)
+%%
+%%   - multicol is used for non-commercial purposes
+%%
+%%
+%% Determining a license fee might result in a license fee of zero
+%% (i.e., no payment) in case a producer has determined that the use
+%% of multicol has no enhancing effect on the product. This is a
+%% plausible scenario, i.e., in the above two cases the producer is
+%% only asked to evaluate the value of multicol for the product
+%% not for the payment of a license fee per se (which might or might
+%% not follow from this evaluation).
+%%
+%% The license fee, if any, can be payed either to the LaTeX3 fund
+%% (see ltx3info.txt in the base LaTeX distribution) or to the author of
+%% the program who can be contacted at
+%%
+%%     Frank.Mittelbach@latex-project.org
+%%
+\NeedsTeXFormat{LaTeX2e}[1997/12/01]
+\ProvidesPackage{multicol}
+          [2017/04/11 v1.8q  multicolumn formatting (FMi)]
+%%
+\DeclareOption{twocolumn}
+   {\PackageWarning{multicol}{May not work
+             with the twocolumn option}}
+\newcount\c@tracingmulticols
+\DeclareOption{errorshow}
+    {\c@tracingmulticols\z@}
+\DeclareOption{infoshow}
+    {\c@tracingmulticols\@ne}
+\DeclareOption{balancingshow}
+    {\c@tracingmulticols\tw@}
+\DeclareOption{markshow}
+    {\c@tracingmulticols\thr@@}
+\DeclareOption{debugshow}
+    {\c@tracingmulticols5\relax}
+\let\mc@gridwarn\maxdimen
+\DeclareOption{grid}{\def\mc@gridwarn{\maxdepth}}
+\DeclareOption{colaction}{%
+  \def\mc@col@status@write{%
+         \protected@write\@auxout{}%
+              {\string\mc@col@status
+              {\ifmc@firstcol 1\else 2\fi}}%
+         \mc@firstcolfalse}%
+  \def\mc@lastcol@status@write{%
+         \protected@write\@auxout{}%
+              {\string\mc@col@status{3}}}%
+}
+\let\mc@col@status@write\relax
+\let\mc@lastcol@status@write\relax
+\ProcessOptions
+\def\multicols#1{\col@number#1\relax
+  \ifnum\col@number<\tw@
+     \PackageWarning{multicol}%
+      {Using `\number\col@number'
+       columns doesn't seem a good idea.^^J
+       I therefore use two columns instead}%
+     \col@number\tw@ \fi
+  \ifnum\col@number>10
+     \PackageError{multicol}%
+      {Too many columns}%
+      {Current implementation doesn't
+       support more than 10 columns.%
+       \MessageBreak
+       I therefore use 10 columns instead}%
+     \col@number10 \fi
+     \ifx\@footnotetext\mult@footnotetext\else
+       \let\orig@footnotetext\@footnotetext
+       \let\@footnotetext\mult@footnotetext
+     \fi
+  \@ifnextchar[\mult@cols{\mult@cols[]}}
+\long\def\mult@footnotetext#1{\begingroup
+         \columnwidth\textwidth
+         \orig@footnotetext{#1}\endgroup}
+\def\mult@cols[#1]{\@ifnextchar[%
+  {\mult@@cols{#1}}%
+  {\mult@@cols{#1}[\premulticols]}}
+\def\mult@@cols#1[#2]{%
+  \par
+  \ifinner \@boxedmulticolstrue
+  \else
+    \ifnum \doublecol@number>\z@
+       \@boxedmulticolstrue
+    \fi
+  \fi
+  \mult@info\z@
+      {Starting environment with
+       \the\col@number\space columns%
+        \if@boxedmulticols\MessageBreak
+           (boxed mode)\fi
+      }%
+   \enough@room{#2}%
+   #1\par\addvspace\multicolsep
+   \ifdim \prevdepth = -\@m\p@
+   \else
+     \@tempcnta\prevdepth
+     \@tempcntb\baselineskip
+     \divide\@tempcnta\@tempcntb
+     \advance\@tempcnta\@ne
+     \dimen@\prevdepth
+     \advance\dimen@ -\@tempcnta\baselineskip
+     \advance\dimen@ \topskip
+     \kern-\dimen@
+   \fi
+   \begingroup
+     \prepare@multicols
+     \if@boxedmulticols
+       \setbox\mult@box\vbox\bgroup
+                            \color@setgroup
+     \fi
+     \ignorespaces}
+\newif\if@boxedmulticols
+\@boxedmulticolsfalse
+\newbox\mult@box
+\def\enough@room#1{%
+   \if@boxedmulticols\else
+   \par
+   \bgroup\@nobreakfalse\addpenalty\z@\egroup
+   \page@free \pagegoal
+   \advance \page@free -\pagetotal
+     \@tempskipa#1\relax
+   \mult@info\z@
+       {Current page:\MessageBreak
+        height=%
+        \the\pagegoal: used \the\pagetotal
+        \space -> free=\the\page@free
+        \MessageBreak
+        needed \the\@tempskipa
+              \space(for #1)}%
+   \ifdim \page@free <#1\newpage \fi
+  \fi}
+\def\prepare@multicols{%
+  \multicol@leftmargin\@totalleftmargin
+  \@totalleftmargin\z@
+  \parshape\z@
+  \doublecol@number\col@number
+  \multiply\doublecol@number\tw@
+  \advance\doublecol@number\mult@rightbox
+  \if@boxedmulticols
+    \let\l@kept@firstmark\kept@firstmark
+    \let\l@kept@botmark\kept@botmark
+    \global\let\kept@firstmark\@empty
+    \global\let\kept@botmark\@empty
+  \else
+    \nointerlineskip {\topskip\z@\null}%
+    \output{%
+      \global\setbox\partial@page\vbox
+        {%
+         \ifvoid\partial@page\else
+           \PackageError{multicol}%
+            {Error saving partial page}%
+            {The part of the page before
+             the multicols environment was
+             nearly full with^^Jthe result
+             that starting the environment
+             will produce an overfull
+             page.  Some^^Jtext may be lost!
+             Please increase \premulticols
+             either generally or for this%
+             ^^Jenvironment by specifying a
+             suitable value in the second
+             optional argument to^^Jthe
+             multicols environment.}
+           \unvbox\partial@page
+           \box\last@line
+         \fi
+         \unvbox\@cclv
+         \global\setbox\last@line\lastbox
+        }%
+           \prep@keptmarks
+           \global\let\kept@topmark\firstmark
+          }\eject
+    \advance\@colroom-\ht\partial@page
+    \set@mult@vsize\relax
+    \output{\multi@column@out}%
+    \init@mult@footins
+    \reinsert@footnotes
+   \def\clearpage{%
+     \ifx\@deferlist\@empty\else
+       \PackageError{multicol}%
+          {Deferred floats not cleared}%
+          {A \string\clearpage\space inside multicols acts like
+           \string\newpage\space and doesn't clear floats.\MessageBreak
+           Move it before the multicols environment if you need it.}%
+     \fi
+    \newpage}%
+  \fi
+  \vbadness\@Mi \hbadness5000
+  \tolerance\multicoltolerance
+  \pretolerance\multicolpretolerance
+  \setemergencystretch\col@number\hsize
+  \set@floatcmds
+  \advance\baselineskip\multicolbaselineskip
+  \hsize\linewidth \advance\hsize\columnsep
+  \advance\hsize-\col@number\columnsep
+  \divide\hsize\col@number
+  \full@width\linewidth
+  \linewidth\hsize
+  \columnwidth\hsize
+}
+\def\init@mult@footins{%
+    \multiply\count\footins\col@number
+    \multiply\skip \footins\col@number
+}
+\def\set@mult@vsize#1{%
+    \vsize\@colroom
+    \@tempdima\baselineskip
+    \advance\@tempdima-\topskip
+    \advance\vsize\@tempdima
+    \vsize\col@number\vsize
+    \advance\vsize-\@tempdima
+    \advance\vsize\col@number\baselineskip
+    #1\advance\vsize
+        \c@collectmore\baselineskip}
+\newdimen\multicol@leftmargin
+\def\endmulticols{\par
+  \if@boxedmulticols
+    \remove@discardable@items\color@endgroup\egroup
+    \balance@columns
+    \return@nonemptymark{first}%
+                 \kept@firstmark
+    \return@nonemptymark{bot}%
+                  \kept@botmark
+    \page@sofar
+    \global\let\kept@firstmark
+               \l@kept@firstmark
+    \global\let\kept@botmark
+            \l@kept@botmark
+    \mult@info\tw@
+      {Restore kept marks to\MessageBreak
+       first: \meaning\kept@firstmark
+       \MessageBreak bot\space\space:
+                     \meaning\kept@botmark }%
+  \else
+    \ifdim\pagegoal=\maxdimen
+      \ifvoid\colbreak@box\else
+        \mult@info\@ne{Re-adding forced
+                 break(s) for splitting}%
+        \unvbox\colbreak@box\fi
+    \fi
+   \penalty\z@
+   \output{\balance@columns@out}%
+   \eject
+    \ifvbox\partial@page
+         \unvbox\partial@page\fi
+     \global\let\kept@firstmark\@empty
+     \global\let\kept@botmark\@empty
+     \mult@info\tw@
+       {Make kept marks empty}%
+  \fi
+  \@checkend{multicols}%
+  \endgroup
+  \global\c@unbalance\z@
+  \if@boxedmulticols\else
+    \reinsert@footnotes
+    \ifdim \pagegoal=\maxdimen
+      \global\vsize\@colroom
+    \else
+      \enough@room\postmulticols
+    \fi
+  \fi
+  \addvspace\multicolsep
+ \prevdepth\z@
+  \mult@info\z@
+     {Ending environment
+             \if@boxedmulticols
+                \space(boxed mode)\fi
+              }}
+\newcount\c@unbalance
+\newcount\c@collectmore
+\newcount\doublecol@number
+\newcount\multicoltolerance
+\newcount\multicolpretolerance
+\newdimen\full@width
+\newdimen\page@free
+\newdimen\premulticols
+\newdimen\postmulticols
+\newskip\multicolsep
+\newskip\multicolbaselineskip
+\newbox\partial@page
+\newbox\last@line
+\c@unbalance   = 0
+\c@collectmore = 0
+\multicoltolerance = 9999
+\multicolpretolerance = -1
+\premulticols = 50pt
+\postmulticols= 20pt
+\multicolsep = 12pt plus 4pt minus 3pt
+\multicolbaselineskip=0pt
+\def\process@cols#1#2{\count@#1\relax
+     \loop
+      #2%
+     \advance\count@\tw@
+     \ifnum\count@<\doublecol@number
+   \repeat}
+\def\page@sofar{%
+   \process@cols\mult@rightbox
+       {\ifvoid\count@
+          \setbox\count@\hbox to\hsize{}%
+        \else
+          \wd\count@\hsize
+        \fi}%
+   \count@\col@number \advance\count@\m@ne
+   \mult@info\z@
+    {Column spec: \the\full@width\space = indent
+                  + columns + sep =\MessageBreak
+        \the\multicol@leftmargin\space
+        + \the\col@number\space
+        x \the\hsize\space
+        + \the\count@\space
+        x \the\columnsep
+     }%
+\ifvmode\else\errmessage{Multicol Error}\fi
+   \nointerlineskip
+   \setbox\z@\hbox{p}\global\dimen\tw@\dp\z@
+   \moveright\multicol@leftmargin
+    \hbox to\full@width{%
+       \mc@align@columns
+       \rlap{\phantom p}%
+    }%
+   \prevdepth\z@
+ \kern-\dimen\tw@
+ \ifdim\dimen\tw@ > \mc@gridwarn
+   \PackageWarning{multicol}%
+     {Very deep columns!\MessageBreak
+      Grid alignment might be broken}%
+ \fi
+}
+\def\columnseprulecolor{\normalcolor}
+\def\reinsert@footnotes{\ifvoid\footins\else
+         \insert\footins{}\fi}
+\def\vfilmaxdepth{\vskip \z@ \@plus .0001fil
+                           \@minus \maxdepth}
+\def\multi@column@out{%
+   \ifnum\outputpenalty <-\@M
+    \speci@ls \else
+    \ifvoid\colbreak@box\else
+      \mult@info\@ne{Re-adding forced
+                break(s) for splitting}%
+      \setbox\@cclv\vbox{%
+       \unvbox\colbreak@box
+       \penalty-\@Mv
+       \unvbox\@cclv}%
+    \fi
+   \splittopskip\topskip
+   \splitmaxdepth\maxdepth
+   \boxmaxdepth\maxdepth
+   \dimen@\@colroom
+   \divide\skip\footins\col@number
+   \ifvoid\footins \else
+      \leave@mult@footins
+   \fi
+   \let\ifshr@kingsaved\ifshr@king
+   \ifvbox \@kludgeins
+     \advance \dimen@ -\ht\@kludgeins
+     \ifdim \wd\@kludgeins>\z@
+        \shr@nkingtrue
+     \fi
+   \fi
+   \process@cols\mult@gfirstbox{%
+        \setbox\count@
+            \vsplit\@cclv to\dimen@
+            \set@keptmarks
+            \setbox\count@
+                 \vbox to\dimen@
+                  {\unvbox\count@
+                   \ifshr@nking\vfilmaxdepth\fi}%
+           }%
+   \setbox\mult@rightbox
+       \vsplit\@cclv to\dimen@
+   \set@keptmarks
+   \setbox\mult@rightbox\vbox to\dimen@
+          {\unvbox\mult@rightbox
+           \ifshr@nking\vfilmaxdepth\fi}%
+   \let\ifshr@king\ifshr@kingsaved
+   \ifvoid\@cclv \else
+       \unvbox\@cclv
+       \ifnum\outputpenalty=\@M
+       \else
+          \penalty\outputpenalty
+       \fi
+       \ifvoid\footins\else
+         \PackageWarning{multicol}%
+          {I moved some lines to
+           the next page.\MessageBreak
+           Footnotes on page
+           \thepage\space might be wrong}%
+       \fi
+       \ifnum \c@tracingmulticols>\thr@@
+                    \hrule\allowbreak \fi
+   \fi
+   \ifx\@empty\kept@firstmark
+      \let\firstmark\kept@topmark
+      \let\botmark\kept@topmark
+   \else
+      \let\firstmark\kept@firstmark
+      \let\botmark\kept@botmark
+   \fi
+   \let\topmark\kept@topmark
+   \mult@info\tw@
+        {Use kept top mark:\MessageBreak
+          \meaning\kept@topmark
+         \MessageBreak
+         Use kept first mark:\MessageBreak
+          \meaning\kept@firstmark
+        \MessageBreak
+         Use kept bot mark:\MessageBreak
+          \meaning\kept@botmark
+        \MessageBreak
+         Produce first mark:\MessageBreak
+          \meaning\firstmark
+        \MessageBreak
+        Produce bot mark:\MessageBreak
+          \meaning\botmark
+         \@gobbletwo}%
+   \boxmaxdepth\maxdimen
+   \setbox\@cclv\vbox{\unvbox\partial@page
+                      \page@sofar}%
+   \@makecol\@outputpage
+     \global\let\kept@topmark\botmark
+     \global\let\kept@firstmark\@empty
+     \global\let\kept@botmark\@empty
+     \mult@info\tw@
+        {(Re)Init top mark:\MessageBreak
+         \meaning\kept@topmark
+         \@gobbletwo}%
+   \global\@colroom\@colht
+   \global \@mparbottom \z@
+   \global \@textfloatsheight \z@
+   \process@deferreds
+   \@whilesw\if@fcolmade\fi{\@outputpage
+      \global\@colroom\@colht
+      \process@deferreds}%
+   \mult@info\@ne
+     {Colroom:\MessageBreak
+      \the\@colht\space
+              after float space removed
+              = \the\@colroom \@gobble}%
+    \set@mult@vsize \global
+  \fi}
+\def\leave@mult@footins{%
+   \advance\dimen@-\skip\footins
+   \advance\dimen@-\ht\footins
+}
+\def\speci@ls{%
+ \ifnum\outputpenalty <-\@Mi
+  \ifnum \outputpenalty<-\@MM
+   \PackageError{multicol}{Document end
+           inside multicols environment}\@ehd
+   \@specialoutput
+  \else
+     \ifnum\outputpenalty = -\@Mv
+         \mult@info\@ne{Forced column
+                        break seen}%
+         \global\advance\vsize-\pagetotal
+         \global\setbox\colbreak@box
+           \vbox{%
+              \ifvoid\colbreak@box
+              \else
+                \unvbox\colbreak@box
+                \penalty-\@Mv
+              \fi
+              \boxmaxdepth\maxdepth
+              \setbox\@cclv\vbox{%
+                 \unvbox\@cclv
+                 \remove@discardable@items}%
+              \dimen@\dp\@cclv
+              \unvbox\@cclv
+              \kern-\dimen@
+         }%
+         \reinsert@footnotes
+     \else
+        \PackageWarningNoLine{multicol}%
+           {Floats and marginpars not
+            allowed inside `multicols'
+            environment!}%
+        \unvbox\@cclv\reinsert@footnotes
+       \xdef\@freelist{\@freelist\@currlist}%
+       \gdef\@currlist{}%
+     \fi
+  \fi
+ \else \@doclearpage \fi
+}
+\def\process@deferreds{%
+   \@floatplacement
+   \@tryfcolumn\@deferlist
+   \if@fcolmade\else
+     \begingroup
+    \let\@tempb\@deferlist
+      \gdef\@deferlist{}%
+      \let\@elt\@scolelt
+        \@tempb \endgroup
+   \fi}
+\newif\ifshr@nking
+\def\raggedcolumns{%
+   \@bsphack\shr@nkingtrue\@esphack}
+\def\flushcolumns{%
+   \@bsphack\shr@nkingfalse\@esphack}
+\def\balance@columns@out{%
+   \setbox\mult@box\vbox{%
+       \ifvoid\colbreak@box\else
+         \unvbox\colbreak@box
+         \penalty-\@Mv
+         \mult@info\@ne{Re-adding
+           forced break(s) in balancing}%
+       \fi
+       \unvbox\@cclv
+       \remove@discardable@items
+   }%
+   \balance@columns
+   \iftoo@bad
+     \mult@info\@ne
+        {Balancing failed ...
+         cut a normal page}%
+     \setbox\@cclv\vbox
+         {\vskip\topskip
+          \vskip-\splittopskip
+          \unvbox\mult@box}%
+     \multi@column@out
+   \else
+     \global\vsize\@colroom
+     \global\advance\vsize\ht\partial@page
+     \ifvbox\@kludgeins\insert\@kludgeins
+                        {\unvbox\@kludgeins}\fi
+     \unvbox\partial@page
+     \return@nonemptymark{first}\kept@firstmark
+     \return@nonemptymark{bot}\kept@botmark
+     \page@sofar
+     \penalty\z@
+  \fi
+}
+\def\balance@columns{%
+   \get@keptmarks\mult@box
+   \setbox\mult@box\vbox{%
+        \penalty-\@M
+        \unvbox\mult@box
+        }%
+   \@tempdima\topskip
+   \splittopskip\@tempdima
+       \@plus\multicolundershoot
+       \@minus\multicolovershoot
+   \splitmaxdepth\maxdepth
+   \boxmaxdepth\maxdepth
+   \setbox\@tempboxa\vsplit\mult@box to\z@
+   \@tempdima\ht\mult@box
+   \advance\@tempdima\dp\mult@box
+   \divide\@tempdima\col@number
+   \count@\@tempdima
+   \divide\count@\baselineskip
+   \dimen@\count@\baselineskip
+   \advance\dimen@\topskip
+   \ifdim \dimen@ >\@tempdima
+     \advance\dimen@-\baselineskip
+   \fi
+   \advance\dimen@\c@unbalance\baselineskip
+   \mult@info\@ne
+      {Balance columns\on@line:
+        \ifnum\c@unbalance=\z@\else
+       (off balance=\number\c@unbalance)\fi
+      \@gobbletwo}%
+   \ifnum\dimen@<\topskip
+     \mult@info\@ne
+       {Start value
+          \the\dimen@  \space ->
+          \the\topskip \space (corrected)}%
+     \dimen@\topskip
+   \fi
+   \vbadness\@M
+   \vfuzz \maxdimen
+   \last@try-\p@
+   \loop
+    {\process@cols\mult@grightbox
+           {\global\setbox\count@
+                   \box\voidb@x}}%
+    \global\setbox\mult@grightbox
+           \copy\mult@box
+   \too@badfalse
+   \forcedbreak@leftoverfalse
+   {\process@cols\mult@firstbox{%
+         \global\setbox\count@
+         \vsplit\mult@grightbox to\dimen@
+         \global\setbox\count@
+                 \vbox to\dimen@
+                  {\unvbox\count@}%
+         \ifnum\c@tracingmulticols>\@ne
+           \@tempcnta\count@
+           \advance\@tempcnta-\mult@grightbox
+           \divide\@tempcnta \tw@
+           \message{^^JColumn
+              \number\@tempcnta\space
+               badness: \the\badness\space}%
+         \fi
+         \ifnum\badness>\c@columnbadness
+           \ifnum\c@tracingmulticols>\@ne
+             \message{too bad
+                  (>\the\c@columnbadness)}%
+           \fi
+           \too@badtrue
+         \fi
+                        }}%
+   \global\setbox\mult@grightbox
+      \vbox{\unvbox\mult@grightbox}%
+   \setbox\mult@nat@firstbox
+      \vbox{\unvcopy\mult@firstbox}%
+    \ifnum\c@tracingmulticols>\@ne
+       \message{^^JFirst column
+           = \the\dimen@\space
+           (\the\ht\mult@nat@firstbox)}\fi
+    \ifnum\c@tracingmulticols>\@ne
+      \message{<> last column =
+               \the\ht\mult@grightbox^^J}%
+     \fi
+    \ifdim\ht\mult@grightbox >\dimen@
+      \too@badtrue
+      \ifnum\c@tracingmulticols>\@ne
+         \typeout{Rejected: last
+                 column too large!}%
+      \fi
+    \else
+      \setbox\@tempboxa
+           \copy\mult@grightbox
+      \setbox\z@\vsplit\@tempboxa to\maxdimen
+      \ifvoid\@tempboxa
+        \global\setbox\mult@grightbox
+           \vbox to\dimen@
+              {\unvbox\mult@grightbox}%
+        \ifnum\c@tracingmulticols>\@ne
+          \message{Final badness:
+                   \the\badness}%
+        \fi
+        \ifnum\badness>\c@finalcolumnbadness
+          \global\setbox\mult@grightbox
+           \vbox to\dimen@
+              {\unvbox\mult@grightbox\vfil}%
+           \ifnum\c@tracingmulticols>\@ne
+             \message{ setting natural
+              (> \the\c@finalcolumnbadness)}%
+           \fi
+        \fi
+      \else
+       \@tempdima\@colroom
+       \advance\@tempdima \maxbalancingoverflow
+       \ifdim \dimen@ < \@tempdima
+        \too@badtrue
+         \ifnum\c@tracingmulticols>\@ne
+           \typeout{Rejected: unprocessed
+             forced break(s) in last column!}%
+         \fi
+       \else
+         \forcedbreak@leftovertrue
+         \ifnum\c@tracingmulticols>\@ne
+          \typeout{Failed: columns too large
+            with unprocessed forced break(s)!}%
+         \fi
+       \fi
+      \fi
+    \fi
+    \ifdim\ht\mult@nat@firstbox<\dimen@
+      \ifdim\ht\mult@nat@firstbox>\last@try
+        \too@badtrue
+        \ifnum\c@tracingmulticols>\@ne
+           \typeout{Retry: using natural
+                    height of first column!}%
+        \fi
+        \dimen@\ht\mult@nat@firstbox
+        \last@try\dimen@
+        \advance\dimen@-\p@
+      \fi
+    \fi
+    \iftoo@bad
+      \advance\dimen@\p@
+    \repeat
+    \ifforcedbreak@leftover
+       \too@badtrue
+    \else
+     \if@boxedmulticols\else
+       \ifdim\dimen@>\@colroom
+         \dimen@\@colroom
+       \fi
+     \fi
+     \process@cols\mult@rightbox
+         {\@tempcnta\count@
+          \advance\@tempcnta\@ne
+          \vfuzz\z@
+          \setbox\count@\vbox to\dimen@
+             {%
+              \vskip \z@
+                \@plus-\multicolundershoot
+                \@minus-\multicolovershoot
+              \unvbox\@tempcnta
+              \ifshr@nking\vfilmaxdepth\fi
+             }%
+          \ifnum\badness>\@M
+            \vfuzz\maxdimen % no overfull warning
+            \setbox\@tempboxa \vbox to\dimen@
+                 {\vskip-\maxbalancingoverflow
+                  \unvcopy\count@}%
+            \ifnum\badness>\@M
+              \mult@info\@ne
+                {Balanced column more than
+                  \the\maxbalancingoverflow\space
+                  too large}%
+              \too@badtrue
+            \else
+              \mult@info\@ne
+                {Balanced column
+                 too large, but less than
+                 \the\maxbalancingoverflow}%
+            \fi
+          \fi
+         }%
+   \fi
+}
+\newdimen\maxbalancingoverflow
+\maxbalancingoverflow=12pt
+
+\newbox\mult@rightbox
+\newbox\mult@grightbox
+\newbox\mult@gfirstbox
+\newbox\mult@firstbox
+\newbox\@tempa\newbox\@tempa
+\newbox\@tempa\newbox\@tempa
+\newbox\@tempa\newbox\@tempa
+\newbox\@tempa\newbox\@tempa
+\newbox\@tempa\newbox\@tempa
+\newbox\@tempa\newbox\@tempa
+\newbox\@tempa\newbox\@tempa
+\newbox\@tempa\newbox\@tempa
+\newbox\@tempa
+\let\@tempa\relax
+\@ifundefined{emergencystretch}
+     {\newdimen\emergencystretch}{}
+\def\setemergencystretch#1#2{%
+   \emergencystretch 4pt
+   \multiply\emergencystretch#1}
+
+\def\set@floatcmds{%
+ \let\@dblfloat\@dbflt
+ \def\end@dblfloat{\@endfloatbox
+   \@largefloatcheck
+   \outer@nobreak
+   \ifnum\@floatpenalty<\z@
+     \@cons\@deferlist\@currbox
+   \fi
+   \ifnum\@floatpenalty=-\@Mii
+     \@Esphack
+   \fi}}
+\def\kept@topmark{{}{}}
+\let\kept@firstmark\@empty
+\let\kept@botmark\@empty
+\def\return@nonemptymark#1#2{%
+  \ifx#2\@empty
+  \else
+    \mult@info\tw@
+      {Returned #1 mark:\MessageBreak
+       \meaning#2}%
+    \toks@\expandafter{#2}%
+    \mark{\the\toks@}%
+    \nobreak
+  \fi}
+\def\get@keptmarks#1{%
+  \begingroup
+   \vbadness\@M
+   \setbox#1\copy#1%
+   \setbox#1\vsplit#1to\maxdimen
+   \set@keptmarks
+ \endgroup
+}
+\def\set@keptmarks{%
+   \ifx\kept@firstmark\@empty
+     \expandafter\gdef\expandafter
+        \kept@firstmark
+        \expandafter{\splitfirstmark}%
+     \ifx\kept@firstmark\@empty\else
+       \mult@info\tw@
+         {Set kept first mark:\MessageBreak
+          \meaning\kept@firstmark%
+          \@gobbletwo}%
+     \fi
+   \fi
+   \expandafter\def\expandafter\@tempa
+      \expandafter{\splitbotmark}%
+   \ifx\@tempa\@empty\else
+      \global\let\kept@botmark\@tempa
+      \mult@info\tw@
+        {Set kept bot mark:\MessageBreak
+         \meaning\kept@botmark%
+         \@gobbletwo}%
+   \fi}%
+\def\prep@keptmarks{%
+   \if@boxedmulticols \else
+     \get@keptmarks\partial@page
+   \fi}
+\skip0=0pt
+\edef\the@zero@skip{\the\skip0}
+\def\remove@discardable@items{%
+     \unpenalty
+     \edef\@tempa{\the\lastskip}%
+     \unskip
+     \ifx\@tempa\the@zero@skip
+       \edef\@tempb{\the\lastskip}%
+       \ifx\@tempb\the@zero@skip
+       \else
+         \unskip
+         \ifnum \lastpenalty=\@M
+           \vskip\@tempb\vskip\@tempa\relax
+         \else
+           \remove@discardable@items
+         \fi
+       \fi
+     \else
+       \remove@discardable@items
+     \fi
+}
+\newif\iftoo@bad
+\def\too@badtrue{\global\let\iftoo@bad\iftrue}
+\def\too@badfalse{\global\let\iftoo@bad\iffalse}
+\newif\ifforcedbreak@leftover
+\newcount\c@columnbadness
+\c@columnbadness=10000
+\newcount\c@finalcolumnbadness
+\c@finalcolumnbadness=9999
+
+\newdimen\last@try
+
+\newdimen\multicolovershoot
+\newdimen\multicolundershoot
+\multicolovershoot=0pt
+\multicolundershoot=2pt
+\newbox\mult@nat@firstbox
+\def\mult@info#1#2{%
+  \ifnum\c@tracingmulticols>#1%
+   \GenericWarning
+       {(multicol)\@spaces\@spaces}%
+       {Package multicol: #2}%
+  \fi
+}
+ \@namedef{multicols*}{%
+   \ifinner
+     \PackageWarning{multicol}%
+       {multicols* inside a box does
+        not make sense.\MessageBreak
+        Going to balance anyway}%
+   \else
+     \let\balance@columns@out
+         \multi@column@out
+   \fi
+   \begin{multicols}
+}
+\@namedef{endmulticols*}{%
+   \par
+   \ifdim\lastskip>\z@ \vskip-\lastskip \fi
+   \ifdim \prevdepth>\z@
+     \vskip-\ifdim\prevdepth>\boxmaxdepth
+                  \boxmaxdepth
+            \else \prevdepth \fi
+   \fi
+   \ifshr@nking\else
+     \vfil
+   \fi
+   \end{multicols}}
+\mathchardef\@Mv=10005
+\def\columnbreak{%
+ \ifnum\col@number<\tw@
+  \PackageError{multicol}%
+   {\noexpand\columnbreak outside multicols}%
+   {This command can only be used within
+    a multicols or multicols* environment.}%
+ \else
+  \ifvmode
+    \penalty -\@Mv\relax
+  \else
+    \@bsphack
+    \vadjust{\penalty -\@Mv\relax}%
+    \@esphack
+  \fi
+ \fi}
+\newbox\colbreak@box
+\def\LR@column@boxes{%
+     \process@cols\mult@gfirstbox{%
+       \ifdim\dp\count@>\dimen\tw@
+         \global\dimen\tw@\dp\count@ \fi
+       \mc@col@status@write
+       \box\count@
+       \hss{\columnseprulecolor\vrule
+              \@width\columnseprule}\hss}%
+     \ifdim\dp\mult@rightbox>\dimen\tw@
+       \global\dimen\tw@\dp\mult@rightbox \fi
+     \mc@lastcol@status@write
+     \box\mult@rightbox
+}
+
+\def\RL@column@boxes{%
+     \process@cols\mult@gfirstbox{%
+       \hskip\hsize
+       \hss{\columnseprulecolor\vrule
+              \@width\columnseprule}\hss
+     }%
+     \hskip\hsize
+     \process@cols\mult@gfirstbox{%
+       \ifdim\dp\count@>\dimen\tw@
+         \global\dimen\tw@\dp\count@ \fi
+       \hskip-\hsize
+       \mc@col@status@write
+       \box\count@
+       \hskip-\hsize
+       \hskip-\columnsep
+     }%
+     \ifdim\dp\mult@rightbox>\dimen\tw@
+       \global\dimen\tw@\dp\mult@rightbox \fi
+     \hskip-\hsize
+     \mc@lastcol@status@write
+     \box\mult@rightbox
+     \hskip-\hsize
+     \hskip\full@width
+ }
+\newcommand\RLmulticolcolumns
+    {\let\mc@align@columns
+         \RL@column@boxes}
+\newcommand\LRmulticolcolumns
+    {\let\mc@align@columns
+      \LR@column@boxes}
+\LRmulticolcolumns
+\newcount\mc@col@check@num
+
+\newcommand\docolaction[4][1]{%
+ \ifx\mc@col@status@write\relax
+     \PackageError{multicol}%
+      {Option 'colaction' not selected}%
+      {\string\docolaction\space
+       requires the use of the 'colaction'
+       option on the package}%
+ \fi
+ \global\advance\mc@col@check@num\@ne
+ \edef\mc@col@type{\expandafter\ifx
+   \csname mc@col-\the\mc@col@check@num
+   \endcsname\relax
+                   0\else
+   \csname mc@col-\the\mc@col@check@num
+   \endcsname
+                    \fi}%
+ \ifcase \mc@col@type\relax
+     \ifcase #1\or #2\or#3\or#4\fi
+  \or
+     #2%  % 1 First col
+  \or
+     #3%  % 2 any middle col
+  \or
+     #4%  % 3 last col
+  \else
+    \ERROR
+  \fi
+  \edef\next{\write\@auxout
+     {\string\mc@set@col@status
+      {mc@col-\the\mc@col@check@num}%
+      {\mc@col@type}}}%
+  \next
+}
+\def\mc@col@status#1{%
+    \gdef\mc@curr@col@status{#1}}
+\def\mc@set@col@status#1#2{%
+  \global\expandafter\let\csname #1\endcsname
+                         \mc@curr@col@status}
+\AtEndDocument{\def\mc@set@col@status#1#2{%
+     \ifnum #2=\mc@curr@col@status\else
+       \@tempswatrue
+     \fi}%
+}
+\newif\ifmc@firstcol
+\mc@firstcoltrue
+\endinput
+%%
+%% End of file `multicol.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/multicol.sty b/Master/texmf-dist/tex/latex-dev/tools/multicol.sty
new file mode 100644
index 00000000000..2dc3ea48b6a
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/multicol.sty
@@ -0,0 +1,1089 @@
+%%
+%% This is file `multicol.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% multicol.dtx  (with options: `package,badness,check,marktrace,nobalance')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% Package `multicol' to use with LaTeX2e
+%% Copyright 1989-2019 Frank Mittelbach
+%%
+%%  In addition to the terms of LPPL any distributed version
+%%  (unchanged or modified) of multicol has to keep the statement
+%%  about the moral obligation for using multicol. In case of major
+%%  changes where this would not be appropriate the author of the
+%%  changed version should contact the copyright holder.
+%%
+%%
+%%  Moral obligation for using multicol:
+%%  ------------------------------------
+%%
+%%  Users of multicol who wish to include or use multicol or a modified
+%%  version in a proprietary and commercially market product are asked
+%%  under certain conditions (see below) for the payment of a license
+%%  fee.  The size of this fee is to be determined, in each instance,
+%%  by the commercial user, depending on his/her judgment of the value of
+%%  multicol for his/her product.
+%%
+%%
+%%  The conditions for this are as follows:
+%%
+%%   The producer of a proprietary and commercially market product
+%%   that involves typesetting using multicol is asked to determine
+%%   the value of a license fee for using multicol if
+%%
+%%   - the product is a document and the producer has decided to
+%%     include multicol to typeset (parts of) the document or has
+%%     directed the author of the document to include multicol (for
+%%     example, by providing a class file to be used by the author)
+%%
+%%   - the product is a LaTeX class or package that includes multicol
+%%
+%%
+%%   There is no moral obligation in case
+%%
+%%   - the product is a document but producer has not directed
+%%     the author to include multicol (in that case the moral obligation
+%%     lies with the author of the document)
+%%
+%%   - the product does not involve typesetting, e.g., consists, for
+%%     example, of distributing multicol and its documentation.
+%%
+%%   - the product is not proprietary, i.e., is made available as free
+%%     software itself (which doesn't prohibit its commercial marketing)
+%%
+%%   - multicol is used for non-commercial purposes
+%%
+%%
+%% Determining a license fee might result in a license fee of zero
+%% (i.e., no payment) in case a producer has determined that the use
+%% of multicol has no enhancing effect on the product. This is a
+%% plausible scenario, i.e., in the above two cases the producer is
+%% only asked to evaluate the value of multicol for the product
+%% not for the payment of a license fee per se (which might or might
+%% not follow from this evaluation).
+%%
+%% The license fee, if any, can be payed either to the LaTeX3 fund
+%% (see ltx3info.txt in the base LaTeX distribution) or to the author of
+%% the program who can be contacted at
+%%
+%%     Frank.Mittelbach@latex-project.org
+%%
+\NeedsTeXFormat{LaTeX2e}[2018-04-01]
+
+\providecommand\DeclareRelease[3]{}
+\providecommand\DeclareCurrentRelease[2]{}
+
+\DeclareRelease{}{2017-04-11}{multicol-2017-04-11.sty}
+\DeclareCurrentRelease{}{2018-04-01}
+
+\ProvidesPackage{multicol}
+          [2019/03/01 v1.8w  multicolumn formatting (FMi)]
+%%
+\DeclareOption{twocolumn}
+   {\PackageWarning{multicol}{May not work
+             with the twocolumn option}}
+\newcount\c@tracingmulticols
+\DeclareOption{errorshow}
+    {\c@tracingmulticols\z@}
+\DeclareOption{infoshow}
+    {\c@tracingmulticols\@ne}
+\DeclareOption{balancingshow}
+    {\c@tracingmulticols\tw@}
+\DeclareOption{markshow}
+    {\c@tracingmulticols\thr@@}
+\DeclareOption{debugshow}
+    {\c@tracingmulticols5\relax}
+\let\mc@gridwarn\maxdimen
+\DeclareOption{grid}{\def\mc@gridwarn{\maxdepth}}
+\DeclareOption{colaction}{%
+  \def\mc@col@status@write{%
+         \protected@write\@auxout{}%
+              {\string\mc@col@status
+              {\ifmc@firstcol 1\else 2\fi}}%
+         \mc@firstcolfalse}%
+  \def\mc@lastcol@status@write{%
+         \protected@write\@auxout{}%
+              {\string\mc@col@status{3}}}%
+}
+\let\mc@col@status@write\relax
+\let\mc@lastcol@status@write\relax
+\ProcessOptions
+\def\multicols#1{\col@number#1\relax
+  \ifnum\col@number<\tw@
+     \PackageWarning{multicol}%
+      {Using `\number\col@number'
+       columns doesn't seem a good idea.^^J
+       I therefore use two columns instead}%
+     \col@number\tw@ \fi
+  \ifnum\col@number>10
+     \PackageError{multicol}%
+      {Too many columns}%
+      {Current implementation doesn't
+       support more than 10 columns.%
+       \MessageBreak
+       I therefore use 10 columns instead}%
+     \col@number10 \fi
+     \ifx\@footnotetext\mult@footnotetext\else
+       \let\orig@footnotetext\@footnotetext
+       \let\@footnotetext\mult@footnotetext
+     \fi
+  \@ifnextchar[\mult@cols{\mult@cols[]}}
+\long\def\mult@footnotetext#1{\begingroup
+         \columnwidth\textwidth
+         \orig@footnotetext{#1}\endgroup}
+\def\mult@cols[#1]{\@ifnextchar[%
+  {\mult@@cols{#1}}%
+  {\mult@@cols{#1}[\premulticols]}}
+\def\mult@@cols#1[#2]{%
+  \par
+  \ifinner \@boxedmulticolstrue
+  \else
+    \ifnum \doublecol@number>\z@
+       \@boxedmulticolstrue
+    \fi
+  \fi
+  \mult@info\z@
+      {Starting environment with
+       \the\col@number\space columns%
+        \if@boxedmulticols\MessageBreak
+           (boxed mode)\fi
+      }%
+   \enough@room{#2}%
+   #1\par\addvspace\multicolsep
+   \ifdim \prevdepth = -\@m\p@
+   \else
+     \@tempcnta\prevdepth
+     \@tempcntb\baselineskip
+     \divide\@tempcnta\@tempcntb
+     \advance\@tempcnta\@ne
+     \dimen@\prevdepth
+     \advance\dimen@ -\@tempcnta\baselineskip
+     \advance\dimen@ \topskip
+     \kern-\dimen@
+   \fi
+   \begingroup
+     \prepare@multicols
+     \if@boxedmulticols
+       \setbox\mult@box\vbox\bgroup
+                            \color@setgroup
+     \fi
+     \ignorespaces}
+\newif\if@boxedmulticols
+\@boxedmulticolsfalse
+\newbox\mult@box
+\def\enough@room#1{%
+   \if@boxedmulticols\else
+   \par
+   \bgroup\@nobreakfalse\addpenalty\z@\egroup
+   \page@free \pagegoal
+   \advance \page@free -\pagetotal
+     \@tempskipa#1\relax
+   \mult@info\z@
+       {Current page:\MessageBreak
+        height=%
+        \the\pagegoal: used \the\pagetotal
+        \space -> free=\the\page@free
+        \MessageBreak
+        needed \the\@tempskipa
+              \space(for #1)}%
+   \ifdim \page@free <#1\newpage \fi
+  \fi}
+\def\prepare@multicols{%
+  \multicol@leftmargin\@totalleftmargin
+  \@totalleftmargin\z@
+  \parshape\z@
+  \doublecol@number\col@number
+  \multiply\doublecol@number\tw@
+  \advance\doublecol@number\mult@rightbox
+  \if@boxedmulticols
+    \let\l@kept@firstmark\kept@firstmark
+    \let\l@kept@botmark\kept@botmark
+    \global\let\kept@firstmark\@empty
+    \global\let\kept@botmark\@empty
+  \else
+    \nointerlineskip {\topskip\z@\null}%
+    \output{%
+      \global\setbox\partial@page\vbox
+        {%
+         \ifvoid\partial@page\else
+           \PackageError{multicol}%
+            {Error saving partial page}%
+            {The part of the page before
+             the multicols environment was
+             nearly full with^^Jthe result
+             that starting the environment
+             will produce an overfull
+             page.  Some^^Jtext may be lost!
+             Please increase \premulticols
+             either generally or for this%
+             ^^Jenvironment by specifying a
+             suitable value in the second
+             optional argument to^^Jthe
+             multicols environment.}
+           \unvbox\partial@page
+           \box\last@line
+         \fi
+         \unvbox\@cclv
+         \global\setbox\last@line\lastbox
+        }%
+           \prep@keptmarks
+           \global\let\kept@topmark\firstmark
+          }\eject
+    \advance\@colroom-\ht\partial@page
+    \set@mult@vsize\relax
+    \output{\multi@column@out}%
+    \init@mult@footins
+    \reinsert@footnotes
+   \def\clearpage{%
+     \ifx\@deferlist\@empty\else
+       \PackageError{multicol}%
+          {Deferred floats not cleared}%
+          {A \string\clearpage\space inside multicols acts like
+           \string\newpage\space and doesn't clear floats.\MessageBreak
+           Move it before the multicols environment if you need it.}%
+     \fi
+    \newpage}%
+  \fi
+  \vbadness\@Mi \hbadness5000
+  \tolerance\multicoltolerance
+  \pretolerance\multicolpretolerance
+  \setemergencystretch\col@number\hsize
+  \set@floatcmds
+  \advance\baselineskip\multicolbaselineskip
+  \hsize\linewidth \advance\hsize\columnsep
+  \advance\hsize-\col@number\columnsep
+  \divide\hsize\col@number
+  \full@width\linewidth
+  \linewidth\hsize
+  \columnwidth\hsize
+}
+\def\init@mult@footins{%
+    \multiply\count\footins\col@number
+    \multiply\skip \footins\col@number
+}
+\def\set@mult@vsize#1{%
+    \vsize\@colroom
+    \@tempdima\baselineskip
+    \advance\@tempdima-\topskip
+    \advance\vsize\@tempdima
+    \vsize\col@number\vsize
+    \advance\vsize-\@tempdima
+    \advance\vsize\col@number\baselineskip
+    #1\advance\vsize
+        \c@collectmore\baselineskip}
+\newdimen\multicol@leftmargin
+\mathchardef\@Mvi=10006  % 10005 is \columnbreak
+\def\endmulticols{\par
+  \if@boxedmulticols
+    \remove@discardable@items\color@endgroup\egroup
+    \balance@columns
+    \return@nonemptymark{first}%
+                 \kept@firstmark
+    \return@nonemptymark{bot}%
+                  \kept@botmark
+    \page@sofar
+    \global\let\kept@firstmark
+               \l@kept@firstmark
+    \global\let\kept@botmark
+            \l@kept@botmark
+    \mult@info\tw@
+      {Restore kept marks to\MessageBreak
+       first: \meaning\kept@firstmark
+       \MessageBreak bot\space\space:
+                     \meaning\kept@botmark }%
+  \else
+    \ifdim\pagegoal=\maxdimen
+      \ifvoid\colbreak@box\else
+        \mult@info\@ne{Re-adding forced
+                 break(s) for splitting}%
+        \unvbox\colbreak@box\fi
+    \fi
+    \penalty\z@
+    \penalty-\@Mvi
+    \ifvbox\partial@page
+         \unvbox\partial@page\fi
+     \global\let\kept@firstmark\@empty
+     \global\let\kept@botmark\@empty
+     \mult@info\tw@
+       {Make kept marks empty}%
+  \fi
+  \@checkend{multicols}%
+  \endgroup
+  \global\c@unbalance\z@
+  \if@boxedmulticols
+    \mc@col@status@write
+  \else
+    \reinsert@footnotes
+    \ifdim \pagegoal=\maxdimen
+      \global\vsize\@colroom
+    \else
+      \enough@room\postmulticols
+    \fi
+  \fi
+  \addvspace\multicolsep
+ \prevdepth\z@
+  \mult@info\z@
+     {Ending environment
+             \if@boxedmulticols
+                \space(boxed mode)\fi
+              }}
+\newcount\c@unbalance
+\newcount\c@collectmore
+\newcount\doublecol@number
+\newcount\multicoltolerance
+\newcount\multicolpretolerance
+\newdimen\full@width
+\newdimen\page@free
+\newdimen\premulticols
+\newdimen\postmulticols
+\newskip\multicolsep
+\newskip\multicolbaselineskip
+\newbox\partial@page
+\newbox\last@line
+\c@unbalance   = 0
+\c@collectmore = 0
+\multicoltolerance = 9999
+\multicolpretolerance = -1
+\premulticols = 50pt
+\postmulticols= 20pt
+\multicolsep = 12pt plus 4pt minus 3pt
+\multicolbaselineskip=0pt
+\def\process@cols#1#2{\count@#1\relax
+     \loop
+      #2%
+     \advance\count@\tw@
+     \ifnum\count@<\doublecol@number
+   \repeat}
+\def\page@sofar{%
+   \process@cols\mult@rightbox
+       {\ifvoid\count@
+          \setbox\count@\hbox to\hsize{}%
+        \else
+          \wd\count@\hsize
+        \fi}%
+   \count@\col@number \advance\count@\m@ne
+   \mult@info\z@
+    {Column spec: \the\full@width\space = indent
+                  + columns + sep =\MessageBreak
+        \the\multicol@leftmargin\space
+        + \the\col@number\space
+        x \the\hsize\space
+        + \the\count@\space
+        x \the\columnsep
+     }%
+\ifvmode\else\errmessage{Multicol Error}\fi
+   \nointerlineskip
+   \setbox\z@\hbox{p}\global\dimen\tw@\dp\z@
+   \moveright\multicol@leftmargin
+    \hbox to\full@width{%
+       \mc@align@columns
+       \rlap{\phantom p}%
+    }%
+   \prevdepth\z@
+ \kern-\dimen\tw@
+ \ifdim\dimen\tw@ > \mc@gridwarn
+   \PackageWarning{multicol}%
+     {Very deep columns!\MessageBreak
+      Grid alignment might be broken}%
+ \fi
+}
+\def\columnseprulecolor{\normalcolor}
+\def\reinsert@footnotes{\ifvoid\footins\else
+         \insert\footins{}\fi}
+\def\vfilmaxdepth{\vskip \z@ \@plus .0001fil
+                           \@minus \maxdepth}
+\def\multi@column@out{%
+   \ifnum\outputpenalty <-\@M
+    \speci@ls \else
+    \ifvoid\colbreak@box\else
+      \mult@info\@ne{Re-adding forced
+                break(s) for splitting}%
+      \setbox\@cclv\vbox{%
+       \unvbox\colbreak@box
+       \penalty-\@Mv
+       \unvbox\@cclv}%
+    \fi
+   \splittopskip\topskip
+   \splitmaxdepth\maxdepth
+   \boxmaxdepth\maxdepth
+   \dimen@\@colroom
+   \divide\skip\footins\col@number
+   \ifvoid\footins \else
+      \leave@mult@footins
+   \fi
+
+   \ifvbox \@kludgeins
+     \advance \dimen@ -\ht\@kludgeins
+     \ifdim \wd\@kludgeins>\z@
+        \shr@nkingtrue
+     \fi
+   \fi
+   \process@cols\mult@gfirstbox{%
+        \setbox\count@
+            \vsplit\@cclv to\dimen@
+            \set@keptmarks
+            \setbox\count@
+                 \vbox to\dimen@
+                  {\unvbox\count@
+                   \ifshr@nking\vfilmaxdepth\fi}%
+           }%
+   \setbox\mult@rightbox
+       \vsplit\@cclv to\dimen@
+   \set@keptmarks
+   \setbox\mult@rightbox\vbox to\dimen@
+          {\unvbox\mult@rightbox
+           \ifshr@nking\vfilmaxdepth\fi}%
+   \ifvoid\@cclv \else
+       \unvbox\@cclv
+       \ifnum\outputpenalty=\@M
+       \else
+          \penalty\outputpenalty
+       \fi
+       \ifvoid\footins\else
+         \PackageWarning{multicol}%
+          {I moved some lines to
+           the next page.\MessageBreak
+           Footnotes on page
+           \thepage\space might be wrong}%
+       \fi
+       \ifnum \c@tracingmulticols>\thr@@
+                    \hrule\allowbreak \fi
+   \fi
+   \ifx\@empty\kept@firstmark
+      \let\firstmark\kept@topmark
+      \let\botmark\kept@topmark
+   \else
+      \let\firstmark\kept@firstmark
+      \let\botmark\kept@botmark
+   \fi
+   \let\topmark\kept@topmark
+   \mult@info\tw@
+        {Use kept top mark:\MessageBreak
+          \meaning\kept@topmark
+         \MessageBreak
+         Use kept first mark:\MessageBreak
+          \meaning\kept@firstmark
+        \MessageBreak
+         Use kept bot mark:\MessageBreak
+          \meaning\kept@botmark
+        \MessageBreak
+         Produce first mark:\MessageBreak
+          \meaning\firstmark
+        \MessageBreak
+        Produce bot mark:\MessageBreak
+          \meaning\botmark
+         \@gobbletwo}%
+   \boxmaxdepth\maxdimen
+   \setbox\@cclv\vbox{\unvbox\partial@page
+                      \page@sofar}%
+   \@makecol\@outputpage
+     \global\let\kept@topmark\botmark
+     \global\let\kept@firstmark\@empty
+     \global\let\kept@botmark\@empty
+     \mult@info\tw@
+        {(Re)Init top mark:\MessageBreak
+         \meaning\kept@topmark
+         \@gobbletwo}%
+   \global\@colroom\@colht
+   \global \@mparbottom \z@
+   \global \@textfloatsheight \z@
+   \process@deferreds
+   \@whilesw\if@fcolmade\fi{\@outputpage
+      \global\@colroom\@colht
+      \process@deferreds}%
+   \mult@info\@ne
+     {Colroom:\MessageBreak
+      \the\@colht\space
+              after float space removed
+              = \the\@colroom \@gobble}%
+    \set@mult@vsize \global
+  \fi}
+\def\leave@mult@footins{%
+   \advance\dimen@-\skip\footins
+   \advance\dimen@-\ht\footins
+}
+\def\speci@ls{%
+ \ifnum\outputpenalty <-\@Mi
+  \ifnum \outputpenalty<-\@MM
+   \PackageError{multicol}{Document end
+           inside multicols environment}\@ehd
+   \@specialoutput
+  \else
+     \ifnum\outputpenalty = -\@Mv
+         \mult@info\@ne{Forced column
+                        break seen}%
+         \global\advance\vsize-\pagetotal
+         \global\setbox\colbreak@box
+           \vbox{%
+              \ifvoid\colbreak@box
+              \else
+                \unvbox\colbreak@box
+                \penalty-\@Mv
+              \fi
+              \boxmaxdepth\maxdepth
+              \setbox\@cclv\vbox{%
+                 \unvbox\@cclv
+                 \remove@discardable@items}%
+              \dimen@\dp\@cclv
+              \unvbox\@cclv
+              \kern-\dimen@
+         }%
+         \reinsert@footnotes
+     \else
+       \ifnum\outputpenalty = -\@Mvi
+         \mult@info\@ne{End penalty of multicols seen}%
+         \outputpenalty\@M   % pretend we had a natural forced break
+         \balance@columns@out
+       \else
+        \PackageWarningNoLine{multicol}%
+           {Floats and marginpars not
+            allowed inside `multicols'
+            environment!}%
+        \unvbox\@cclv\reinsert@footnotes
+        \xdef\@freelist{\@freelist\@currlist}%
+        \gdef\@currlist{}%
+      \fi
+    \fi
+  \fi
+ \else \@doclearpage \fi
+}
+\def\process@deferreds{%
+   \@floatplacement
+   \@tryfcolumn\@deferlist
+   \if@fcolmade\else
+     \begingroup
+    \let\@tempb\@deferlist
+      \gdef\@deferlist{}%
+      \let\@elt\@scolelt
+        \@tempb \endgroup
+   \fi}
+\newif\ifshr@nking
+\def\raggedcolumns{%
+   \@bsphack\shr@nkingtrue\@esphack}
+\def\flushcolumns{%
+   \@bsphack\shr@nkingfalse\@esphack}
+\def\balance@columns@out{%
+   \setbox\mult@box\vbox{%
+       \ifvoid\colbreak@box\else
+         \unvbox\colbreak@box
+         \penalty-\@Mv
+         \mult@info\@ne{Re-adding
+           forced break(s) in balancing}%
+       \fi
+       \unvbox\@cclv
+       \remove@discardable@items
+   }%
+   \balance@columns
+   \iftoo@bad
+     \mult@info\@ne
+        {Balancing failed ...
+         cut a normal page}%
+     \setbox\@cclv\vbox
+         {\vskip\topskip
+          \vskip-\splittopskip
+          \unvbox\mult@box
+          \penalty-\@Mvi
+         }%
+     \multi@column@out
+   \else
+     \global\vsize\@colroom
+     \global\advance\vsize\ht\partial@page
+     \ifvbox\@kludgeins\insert\@kludgeins
+                        {\unvbox\@kludgeins}\fi
+     \unvbox\partial@page
+     \return@nonemptymark{first}\kept@firstmark
+     \return@nonemptymark{bot}\kept@botmark
+     \page@sofar
+     \penalty\z@
+  \fi
+}
+\def\balance@columns{%
+   \get@keptmarks\mult@box
+   \setbox\mult@box\vbox{%
+        \penalty-\@M
+        \unvbox\mult@box
+        }%
+   \@tempdima\topskip
+   \splittopskip\@tempdima
+       \@plus\multicolundershoot
+       \@minus\multicolovershoot
+   \splitmaxdepth\maxdepth
+   \boxmaxdepth\maxdepth
+   \setbox\@tempboxa\vsplit\mult@box to\z@
+   \@tempdima\ht\mult@box
+   \advance\@tempdima\dp\mult@box
+   \divide\@tempdima\col@number
+   \count@\@tempdima
+   \divide\count@\baselineskip
+   \dimen@\count@\baselineskip
+   \advance\dimen@\topskip
+   \ifdim \dimen@ >\@tempdima
+     \advance\dimen@-\baselineskip
+   \fi
+   \@tempdima\dimexpr
+       \topskip +\c@minrows\baselineskip-\baselineskip\relax
+   \ifnum\dimen@<\@tempdima
+     \mult@info\@ne
+       {Start value
+          \the\dimen@  \space ->
+          \the\@tempdima \space (corrected for minrows)}%
+     \dimen@\@tempdima
+   \fi
+   \advance\dimen@\c@unbalance\baselineskip
+   \mult@info\@ne
+      {Balance columns\on@line:
+        \ifnum\c@unbalance=\z@\else
+       (off balance=\number\c@unbalance)\fi
+      \@gobbletwo}%
+   \ifnum\dimen@<\topskip
+     \mult@info\@ne
+       {Start value
+          \the\dimen@  \space ->
+          \the\topskip \space (corrected)}%
+     \dimen@\topskip
+   \fi
+   \vbadness\@M
+   \vfuzz \maxdimen
+   \last@try-\p@
+   \loop
+    {\process@cols\mult@grightbox
+           {\global\setbox\count@
+                   \box\voidb@x}}%
+    \global\setbox\mult@grightbox
+           \copy\mult@box
+   \too@badfalse
+   \forcedbreak@leftoverfalse
+   {\process@cols\mult@firstbox{%
+         \global\setbox\count@
+         \vsplit\mult@grightbox to\dimen@
+         \global\setbox\count@
+                 \vbox to\dimen@
+                  {\unvbox\count@}%
+         \ifnum\c@tracingmulticols>\@ne
+           \@tempcnta\count@
+           \advance\@tempcnta-\mult@grightbox
+           \divide\@tempcnta \tw@
+           \message{^^JColumn
+              \number\@tempcnta\space
+               badness: \the\badness\space}%
+         \fi
+         \ifnum\badness>\c@columnbadness
+           \ifnum\c@tracingmulticols>\@ne
+             \message{too bad
+                  (>\the\c@columnbadness)}%
+           \fi
+           \too@badtrue
+         \fi
+                        }}%
+   \global\setbox\mult@grightbox
+      \vbox{\unvbox\mult@grightbox}%
+   \setbox\mult@nat@firstbox
+      \vbox{\unvcopy\mult@firstbox}%
+    \ifnum\c@tracingmulticols>\@ne
+       \message{^^JFirst column
+           = \the\dimen@\space
+           (\the\ht\mult@nat@firstbox)}\fi
+    \ifnum\c@tracingmulticols>\@ne
+      \message{<> last column =
+               \the\ht\mult@grightbox^^J}%
+     \fi
+    \ifdim\ht\mult@grightbox >\dimen@
+      \too@badtrue
+      \ifnum\c@tracingmulticols>\@ne
+         \typeout{Rejected: last
+                 column too large!}%
+      \fi
+    \else
+      \setbox\@tempboxa
+           \copy\mult@grightbox
+      \setbox\z@\vsplit\@tempboxa to\maxdimen
+      \ifvoid\@tempboxa
+        \global\setbox\mult@grightbox
+           \vbox to\dimen@
+              {\unvbox\mult@grightbox}%
+        \ifnum\c@tracingmulticols>\@ne
+          \message{Final badness:
+                   \the\badness}%
+        \fi
+        \ifnum\badness>\c@finalcolumnbadness
+          \global\setbox\mult@grightbox
+           \vbox to\dimen@
+              {\unvbox\mult@grightbox\vfil}%
+           \ifnum\c@tracingmulticols>\@ne
+             \message{ setting natural
+              (> \the\c@finalcolumnbadness)}%
+           \fi
+        \fi
+      \else
+       \@tempdima\@colroom
+       \advance\@tempdima \maxbalancingoverflow
+       \ifdim \dimen@ < \@tempdima
+        \too@badtrue
+         \ifnum\c@tracingmulticols>\@ne
+           \typeout{Rejected: unprocessed
+             forced break(s) in last column!}%
+         \fi
+       \else
+         \forcedbreak@leftovertrue
+         \ifnum\c@tracingmulticols>\@ne
+          \typeout{Failed: columns too large
+            with unprocessed forced break(s)!}%
+         \fi
+       \fi
+      \fi
+    \fi
+    \ifdim\ht\mult@nat@firstbox<\dimen@
+      \ifdim\ht\mult@nat@firstbox>\last@try
+        \too@badtrue
+        \ifnum\c@tracingmulticols>\@ne
+           \typeout{Retry: using natural
+                    height of first column!}%
+        \fi
+        \dimen@\ht\mult@nat@firstbox
+        \last@try\dimen@
+        \advance\dimen@-\p@
+      \fi
+    \fi
+    \iftoo@bad
+      \advance\dimen@\p@
+    \repeat
+    \ifforcedbreak@leftover
+       \too@badtrue
+    \else
+     \if@boxedmulticols\else
+       \ifdim\dimen@>\@colroom
+         \dimen@\@colroom
+       \fi
+     \fi
+     \process@cols\mult@rightbox
+         {\@tempcnta\count@
+          \advance\@tempcnta\@ne
+          \vfuzz\z@
+          \setbox\count@\vbox to\dimen@
+             {%
+              \vskip \z@
+                \@plus-\multicolundershoot
+                \@minus-\multicolovershoot
+              \unvbox\@tempcnta
+              \ifshr@nking\vfilmaxdepth\fi
+             }%
+          \ifnum\badness>\@M
+            \vfuzz\maxdimen % no overfull warning
+            \setbox\@tempboxa \vbox to\dimen@
+                 {\vskip-\maxbalancingoverflow
+                  \unvcopy\count@}%
+            \ifnum\badness>\@M
+              \mult@info\@ne
+                {Balanced column more than
+                  \the\maxbalancingoverflow\space
+                  too large}%
+              \too@badtrue
+            \else
+              \mult@info\@ne
+                {Balanced column
+                 too large, but less than
+                 \the\maxbalancingoverflow}%
+            \fi
+          \fi
+         }%
+   \fi
+}
+\newdimen\maxbalancingoverflow
+\maxbalancingoverflow=12pt
+
+\newbox\mult@rightbox
+\newbox\mult@grightbox
+\newbox\mult@gfirstbox
+\newbox\mult@firstbox
+\newbox\@tempa\newbox\@tempa
+\newbox\@tempa\newbox\@tempa
+\newbox\@tempa\newbox\@tempa
+\newbox\@tempa\newbox\@tempa
+\newbox\@tempa\newbox\@tempa
+\newbox\@tempa\newbox\@tempa
+\newbox\@tempa\newbox\@tempa
+\newbox\@tempa\newbox\@tempa
+\newbox\@tempa
+\let\@tempa\relax
+\@ifundefined{emergencystretch}
+     {\newdimen\emergencystretch}{}
+\def\setemergencystretch#1#2{%
+   \emergencystretch 4pt
+   \multiply\emergencystretch#1}
+
+\def\set@floatcmds{%
+ \let\@dblfloat\@dbflt
+ \def\end@dblfloat{\@endfloatbox
+   \@largefloatcheck
+   \outer@nobreak
+   \ifnum\@floatpenalty<\z@
+     \@cons\@deferlist\@currbox
+   \fi
+   \ifnum\@floatpenalty=-\@Mii
+     \@Esphack
+   \fi}}
+\def\kept@topmark{{}{}}
+\let\kept@firstmark\@empty
+\let\kept@botmark\@empty
+\def\return@nonemptymark#1#2{%
+  \ifx#2\@empty
+  \else
+    \mult@info\tw@
+      {Returned #1 mark:\MessageBreak
+       \meaning#2}%
+    \toks@\expandafter{#2}%
+    \mark{\the\toks@}%
+    \nobreak
+  \fi}
+\def\get@keptmarks#1{%
+  \begingroup
+   \vbadness\@M
+   \setbox#1\copy#1%
+   \setbox#1\vsplit#1to\maxdimen
+   \set@keptmarks
+ \endgroup
+}
+\def\set@keptmarks{%
+   \ifx\kept@firstmark\@empty
+     \expandafter\gdef\expandafter
+        \kept@firstmark
+        \expandafter{\splitfirstmark}%
+     \ifx\kept@firstmark\@empty\else
+       \mult@info\tw@
+         {Set kept first mark:\MessageBreak
+          \meaning\kept@firstmark%
+          \@gobbletwo}%
+     \fi
+   \fi
+   \expandafter\def\expandafter\@tempa
+      \expandafter{\splitbotmark}%
+   \ifx\@tempa\@empty\else
+      \global\let\kept@botmark\@tempa
+      \mult@info\tw@
+        {Set kept bot mark:\MessageBreak
+         \meaning\kept@botmark%
+         \@gobbletwo}%
+   \fi}%
+\def\prep@keptmarks{%
+   \if@boxedmulticols \else
+     \get@keptmarks\partial@page
+   \fi}
+\skip0=0pt
+\edef\the@zero@skip{\the\skip0}
+\def\remove@discardable@items{%
+     \unpenalty
+     \edef\@tempa{\the\lastskip}%
+     \unskip
+     \ifx\@tempa\the@zero@skip
+       \edef\@tempb{\the\lastskip}%
+       \ifx\@tempb\the@zero@skip
+       \else
+         \unskip
+         \ifnum \lastpenalty=\@M
+           \vskip\@tempb\vskip\@tempa\relax
+         \else
+           \remove@discardable@items
+         \fi
+       \fi
+     \else
+       \remove@discardable@items
+     \fi
+}
+\newif\iftoo@bad
+\def\too@badtrue{\global\let\iftoo@bad\iftrue}
+\def\too@badfalse{\global\let\iftoo@bad\iffalse}
+\newif\ifforcedbreak@leftover
+\newcount\c@minrows
+\c@minrows=1
+\newcount\c@columnbadness
+\c@columnbadness=10000
+\newcount\c@finalcolumnbadness
+\c@finalcolumnbadness=9999
+
+\newdimen\last@try
+
+\newdimen\multicolovershoot
+\newdimen\multicolundershoot
+\multicolovershoot=0pt
+\multicolundershoot=2pt
+\newbox\mult@nat@firstbox
+\def\mult@info#1#2{%
+  \ifnum\c@tracingmulticols>#1%
+   \GenericWarning
+       {(multicol)\@spaces\@spaces}%
+       {Package multicol: #2}%
+  \fi
+}
+ \@namedef{multicols*}{%
+   \ifinner
+     \PackageWarning{multicol}%
+       {multicols* inside a box does
+        not make sense.\MessageBreak
+        Going to balance anyway}%
+   \else
+     \def\balance@columns@out
+         {\multi@column@out \penalty-\@Mvi }%
+   \fi
+   \begin{multicols}
+}
+\@namedef{endmulticols*}{%
+   \par
+   \ifdim\lastskip>\z@ \vskip-\lastskip \fi
+   \ifdim \prevdepth>\z@
+     \vskip-\ifdim\prevdepth>\boxmaxdepth
+                  \boxmaxdepth
+            \else \prevdepth \fi
+   \fi
+   \ifshr@nking\else
+     \vfil
+   \fi
+   \end{multicols}}
+\mathchardef\@Mv=10005
+\def\columnbreak{%
+ \ifnum\col@number<\tw@
+  \PackageError{multicol}%
+   {\noexpand\columnbreak outside multicols}%
+   {This command can only be used within
+    a multicols or multicols* environment.}%
+ \else
+  \ifvmode
+    \penalty -\@Mv\relax
+  \else
+    \@bsphack
+    \vadjust{\penalty -\@Mv\relax}%
+    \@esphack
+  \fi
+ \fi}
+\newbox\colbreak@box
+\def\LR@column@boxes{%
+     \process@cols\mult@gfirstbox{%
+       \ifdim\dp\count@>\dimen\tw@
+         \global\dimen\tw@\dp\count@ \fi
+       \mc@col@status@write
+       \box\count@
+       \hss{\columnseprulecolor\vrule
+              \@width\columnseprule}\hss}%
+     \ifdim\dp\mult@rightbox>\dimen\tw@
+       \global\dimen\tw@\dp\mult@rightbox \fi
+     \mc@lastcol@status@write
+     \box\mult@rightbox
+}
+
+\def\RL@column@boxes{%
+     \process@cols\mult@gfirstbox{%
+       \hskip\hsize
+       \hss{\columnseprulecolor\vrule
+              \@width\columnseprule}\hss
+     }%
+     \hskip\hsize
+     \process@cols\mult@gfirstbox{%
+       \ifdim\dp\count@>\dimen\tw@
+         \global\dimen\tw@\dp\count@ \fi
+       \hskip-\hsize
+       \mc@col@status@write
+       \box\count@
+       \hskip-\hsize
+       \hskip-\columnsep
+     }%
+     \ifdim\dp\mult@rightbox>\dimen\tw@
+       \global\dimen\tw@\dp\mult@rightbox \fi
+     \hskip-\hsize
+     \mc@lastcol@status@write
+     \box\mult@rightbox
+     \hskip-\hsize
+     \hskip\full@width
+ }
+\newcommand\RLmulticolcolumns
+    {\let\mc@align@columns
+         \RL@column@boxes}
+\newcommand\LRmulticolcolumns
+    {\let\mc@align@columns
+      \LR@column@boxes}
+\LRmulticolcolumns
+\newcount\mc@col@check@num
+
+\newcommand\docolaction{%
+ \ifx\mc@col@status@write\relax
+     \PackageError{multicol}%
+      {Option 'colaction' not selected}%
+      {\string\docolaction\space
+       requires the use of the 'colaction'
+       option on the package}%
+ \fi
+ \global\advance\mc@col@check@num\@ne
+ \edef\mc@col@type{\expandafter\ifx
+   \csname mc@col-\the\mc@col@check@num
+   \endcsname\relax
+                   0\else
+   \csname mc@col-\the\mc@col@check@num
+   \endcsname
+   \fi}%
+ \@ifstar
+   {\@docolactionstartrue \@docolaction}%
+   {\@docolactionstarfalse\@docolaction}%
+}
+\newcommand\@docolaction[4][1]{%
+ \edef\@docolactioncheck{\write\@auxout
+   {\string\mc@set@col@status
+     {mc@col-\the\mc@col@check@num}%
+     {\mc@col@type}}}%
+ \if@docolactionstar \@docolactioncheck \fi
+ \ifcase \mc@col@type\relax
+     \ifcase #1\or #2\or#3\or#4\fi
+  \or
+     #2%  % 1 First col
+  \or
+     #3%  % 2 any middle col
+  \or
+     #4%  % 3 last col
+  \else
+    \ERRORwrongdefaultgiven
+  \fi
+ \if@docolactionstar \else \@docolactioncheck \fi
+}
+\newif\if@docolactionstar
+\def\mc@col@status#1{%
+    \gdef\mc@curr@col@status{#1}}
+\def\mc@set@col@status#1#2{%
+  \global\expandafter\let\csname #1\endcsname
+                         \mc@curr@col@status}
+\AtEndDocument{\def\mc@set@col@status#1#2{%
+     \ifnum #2=\mc@curr@col@status\else
+       \@tempswatrue
+     \fi}%
+}
+\newif\ifmc@firstcol
+\mc@firstcoltrue
+\endinput
+%%
+%% End of file `multicol.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/q.tex b/Master/texmf-dist/tex/latex-dev/tools/q.tex
new file mode 100644
index 00000000000..98989dc59f1
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/q.tex
@@ -0,0 +1,42 @@
+%%
+%% This is file `q.tex',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% fileerr.dtx  (with options: `batch')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+ \message{File ignored}
+             \batchmode
+\endinput
+%%
+%% End of file `q.tex'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/r.tex b/Master/texmf-dist/tex/latex-dev/tools/r.tex
new file mode 100644
index 00000000000..ce4a465e808
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/r.tex
@@ -0,0 +1,42 @@
+%%
+%% This is file `r.tex',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% fileerr.dtx  (with options: `run')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+ \message{File ignored}
+               \nonstopmode
+\endinput
+%%
+%% End of file `r.tex'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/rawfonts.sty b/Master/texmf-dist/tex/latex-dev/tools/rawfonts.sty
new file mode 100644
index 00000000000..a908bcff858
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/rawfonts.sty
@@ -0,0 +1,126 @@
+%%
+%% This is file `rawfonts.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% rawfonts.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{rawfonts}
+   [1994/05/08 Low-level LaTeX 2.09 font compatibility]
+\RequirePackage{somedefs}
+\UseAllDefinitions
+\DeclareOption{only}{\UseSomeDefinitions}
+\DeclareOption*{\UseDefinition{\CurrentOption}}
+\ProcessOptions
+\ProvidesDefinition{\DeclareFixedFont{\fivrm}{OT1}{cmr}{m}{n}{\@vpt}}
+\ProvidesDefinition{\DeclareFixedFont{\fivmi}{OML}{cmm}{m}{it}{\@vpt}}
+\ProvidesDefinition{\DeclareFixedFont{\fivsy}{OMS}{cmsy}{m}{n}{\@vpt}}
+\ProvidesDefinition{\DeclareFixedFont{\fivly}{U}{lasy}{m}{n}{\@vpt}}
+\ProvidesDefinition{\DeclareFixedFont{\sixrm}{OT1}{cmr}{m}{n}{\@vipt}}
+\ProvidesDefinition{\DeclareFixedFont{\sixmi}{OML}{cmm}{m}{it}{\@vipt}}
+\ProvidesDefinition{\DeclareFixedFont{\sixsy}{OMS}{cmsy}{m}{n}{\@vipt}}
+\ProvidesDefinition{\DeclareFixedFont{\sixly}{U}{lasy}{m}{n}{\@vipt}}
+\ProvidesDefinition{\DeclareFixedFont{\sevrm}{OT1}{cmr}{m}{n}{\@viipt}}
+\ProvidesDefinition{\DeclareFixedFont{\sevmi}{OML}{cmm}{m}{it}{\@viipt}}
+\ProvidesDefinition{\DeclareFixedFont{\sevsy}{OMS}{cmsy}{m}{n}{\@viipt}}
+\ProvidesDefinition{\DeclareFixedFont{\sevit}{OT1}{cmr}{m}{it}{\@viipt}}
+\ProvidesDefinition{\DeclareFixedFont{\sevly}{U}{lasy}{m}{n}{\@viipt}}
+\ProvidesDefinition{\DeclareFixedFont{\egtrm}{OT1}{cmr}{m}{n}{\@viiipt}}
+\ProvidesDefinition{%
+                   \DeclareFixedFont{\egtmi}{OML}{cmm}{m}{it}{\@viiipt}}
+\ProvidesDefinition{%
+                   \DeclareFixedFont{\egtsy}{OMS}{cmsy}{m}{n}{\@viiipt}}
+\ProvidesDefinition{%
+     \DeclareFixedFont{\egtit}{OT1}{cmr}{m}{it}{\@viiipt}}
+\ProvidesDefinition{\DeclareFixedFont{\egtly}{U}{lasy}{m}{n}{\@viiipt}}
+\ProvidesDefinition{\DeclareFixedFont{\ninrm}{OT1}{cmr}{m}{n}{\@ixpt}}
+\ProvidesDefinition{\DeclareFixedFont{\ninmi}{OML}{cmm}{m}{it}{\@ixpt}}
+\ProvidesDefinition{\DeclareFixedFont{\ninsy}{OMS}{cmsy}{m}{n}{\@ixpt}}
+\ProvidesDefinition{\DeclareFixedFont{\ninit}{OT1}{cmr}{m}{it}{\@ixpt}}
+\ProvidesDefinition{\DeclareFixedFont{\ninbf}{OT1}{cmr}{bx}{n}{\@ixpt}}
+\ProvidesDefinition{\DeclareFixedFont{\nintt}{OT1}{cmtt}{m}{n}{\@ixpt}}
+\ProvidesDefinition{\DeclareFixedFont{\ninly}{U}{lasy}{m}{n}{\@ixpt}}
+\ProvidesDefinition{\DeclareFixedFont{\tenrm}{OT1}{cmr}{m}{n}{\@xpt}}
+\ProvidesDefinition{\DeclareFixedFont{\tenmi}{OML}{cmm}{m}{it}{\@xpt}}
+\ProvidesDefinition{\DeclareFixedFont{\tensy}{OMS}{cmsy}{m}{n}{\@xpt}}
+\ProvidesDefinition{\DeclareFixedFont{\tenit}{OT1}{cmr}{m}{it}{\@xpt}}
+\ProvidesDefinition{\DeclareFixedFont{\tensl}{OT1}{cmr}{m}{sl}{\@xpt}}
+\ProvidesDefinition{\DeclareFixedFont{\tenbf}{OT1}{cmr}{bx}{n}{\@xpt}}
+\ProvidesDefinition{\DeclareFixedFont{\tentt}{OT1}{cmtt}{m}{n}{\@xpt}}
+\ProvidesDefinition{\DeclareFixedFont{\tensf}{OT1}{cmss}{m}{n}{\@xpt}}
+\ProvidesDefinition{\DeclareFixedFont{\tenly}{U}{lasy}{m}{n}{\@xpt}}
+\ProvidesDefinition{\DeclareFixedFont{\tenex}{OMX}{cmex}{m}{n}{\@xpt}}
+\ProvidesDefinition{\DeclareFixedFont{\elvrm}{OT1}{cmr}{m}{n}{\@xipt}}
+\ProvidesDefinition{\DeclareFixedFont{\elvmi}{OML}{cmm}{m}{it}{\@xipt}}
+\ProvidesDefinition{\DeclareFixedFont{\elvsy}{OMS}{cmsy}{m}{n}{\@xipt}}
+\ProvidesDefinition{\DeclareFixedFont{\elvit}{OT1}{cmr}{m}{it}{\@xipt}}
+\ProvidesDefinition{\DeclareFixedFont{\elvsl}{OT1}{cmr}{m}{sl}{\@xipt}}
+\ProvidesDefinition{\DeclareFixedFont{\elvbf}{OT1}{cmr}{bx}{n}{\@xipt}}
+\ProvidesDefinition{\DeclareFixedFont{\elvtt}{OT1}{cmtt}{m}{n}{\@xipt}}
+\ProvidesDefinition{\DeclareFixedFont{\elvsf}{OT1}{cmss}{m}{n}{\@xipt}}
+\ProvidesDefinition{\DeclareFixedFont{\elvly}{U}{lasy}{m}{n}{\@xipt}}
+\ProvidesDefinition{\DeclareFixedFont{\twlrm}{OT1}{cmr}{m}{n}{\@xiipt}}
+\ProvidesDefinition{\DeclareFixedFont{\twlmi}{OML}{cmm}{m}{it}{\@xiipt}}
+\ProvidesDefinition{\DeclareFixedFont{\twlsy}{OMS}{cmsy}{m}{n}{\@xiipt}}
+\ProvidesDefinition{\DeclareFixedFont{\twlit}{OT1}{cmr}{m}{it}{\@xiipt}}
+\ProvidesDefinition{\DeclareFixedFont{\twlsl}{OT1}{cmr}{m}{sl}{\@xiipt}}
+\ProvidesDefinition{\DeclareFixedFont{\twlbf}{OT1}{cmr}{bx}{n}{\@xiipt}}
+\ProvidesDefinition{\DeclareFixedFont{\twltt}{OT1}{cmtt}{m}{n}{\@xiipt}}
+\ProvidesDefinition{\DeclareFixedFont{\twlsf}{OT1}{cmss}{m}{n}{\@xiipt}}
+\ProvidesDefinition{\DeclareFixedFont{\twlly}{U}{lasy}{m}{n}{\@xiipt}}
+\ProvidesDefinition{\DeclareFixedFont{\frtnrm}{OT1}{cmr}{m}{n}{\@xivpt}}
+\ProvidesDefinition{%
+                   \DeclareFixedFont{\frtnmi}{OML}{cmm}{m}{it}{\@xivpt}}
+\ProvidesDefinition{%
+                   \DeclareFixedFont{\frtnsy}{OMS}{cmsy}{m}{n}{\@xivpt}}
+\ProvidesDefinition{%
+                   \DeclareFixedFont{\frtnbf}{OT1}{cmr}{bx}{n}{\@xivpt}}
+\ProvidesDefinition{\DeclareFixedFont{\frtnly}{U}{lasy}{m}{n}{\@xivpt}}
+\ProvidesDefinition{%
+                   \DeclareFixedFont{\svtnrm}{OT1}{cmr}{m}{n}{\@xviipt}}
+\ProvidesDefinition{%
+                  \DeclareFixedFont{\svtnmi}{OML}{cmm}{m}{it}{\@xviipt}}
+\ProvidesDefinition{%
+                  \DeclareFixedFont{\svtnsy}{OMS}{cmsy}{m}{n}{\@xviipt}}
+\ProvidesDefinition{%
+                  \DeclareFixedFont{\svtnbf}{OT1}{cmr}{bx}{n}{\@xviipt}}
+\ProvidesDefinition{\DeclareFixedFont{\svtnly}{U}{lasy}{m}{n}{\@xviipt}}
+\ProvidesDefinition{\DeclareFixedFont{\twtyrm}{OT1}{cmr}{m}{n}{\@xxpt}}
+\ProvidesDefinition{\DeclareFixedFont{\twtymi}{OML}{cmm}{m}{it}{\@xxpt}}
+\ProvidesDefinition{\DeclareFixedFont{\twtysy}{OMS}{cmsy}{m}{n}{\@xxpt}}
+\ProvidesDefinition{\DeclareFixedFont{\twtyly}{U}{lasy}{m}{n}{\@xxpt}}
+\ProvidesDefinition{\DeclareFixedFont{\twfvrm}{OT1}{cmr}{m}{n}{\@xxvpt}}
+\endinput
+%%
+%% End of file `rawfonts.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/s.tex b/Master/texmf-dist/tex/latex-dev/tools/s.tex
new file mode 100644
index 00000000000..b7f6f061af1
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/s.tex
@@ -0,0 +1,42 @@
+%%
+%% This is file `s.tex',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% fileerr.dtx  (with options: `scroll')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+ \message{File ignored}
+            \scrollmode
+\endinput
+%%
+%% End of file `s.tex'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/shellesc.sty b/Master/texmf-dist/tex/latex-dev/tools/shellesc.sty
new file mode 100644
index 00000000000..d43eb9025ff
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/shellesc.sty
@@ -0,0 +1,105 @@
+%%
+%% This is file `shellesc.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% shellesc.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% Source File: shellesc.dtx
+%% Copyright (C) 2015-2019
+%%
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%%
+%% This file may be distributed under the terms of the LPPL.
+%% See README for details.
+\ifx\ProvidesPackage\undefined
+\def\next#1#2[#3]{\wlog{#2 #3}}
+\ifx\PackageInfo\undefined\def\PackageInfo#1#2{\wlog{#1: #2}}\fi
+\ifx\PackageWarning\undefined\def\PackageWarning#1#2{\wlog{#1: #2}}\fi
+\expandafter\next\fi
+\ProvidesPackage{shellesc}
+       [2016/06/07 v0.02b unified shell escape interface for LaTeX]
+\ifcase
+  \ifx\pdfshellescape\@undefined
+    \ifx\shellescape\@undefined
+      \ifx\directlua\@undefined
+        \z@
+      \else
+        \directlua{%
+          tex.sprint((status.shell_escape or os.execute()) .. " ")}
+      \fi
+    \else
+      \shellescape
+    \fi
+  \else
+    \pdfshellescape
+  \fi
+  \PackageWarning{shellesc}{Shell escape disabled}
+\or
+  \PackageInfo   {shellesc}{Unrestricted shell escape enabled}
+\else
+  \PackageInfo   {shellesc}{Restricted shell escape enabled}
+\fi
+\ifx\lastsavedimageresourcepages\@undefined
+  \protected\def\ShellEscape{\immediate\write18 }
+\else
+  \protected\def\ShellEscape#1{%
+    \directlua{os.execute("\luaescapestring{#1}")}}
+\fi
+\ifx\lastsavedimageresourcepages\@undefined
+  \protected\def\DelayedShellEscape{\relax\write18 }
+\else
+  \protected\def\DelayedShellEscape#1{%
+    \latelua{os.execute("\luaescapestring{#1}")}}
+\fi
+\ifx\lastsavedimageresourcepages\@undefined\expandafter\endinput\fi
+\directlua{%
+shellesc = shellesc or {}
+local function write_or_execute()
+  local s = token.scan_int()
+  if (s==18) then
+     tex.sprint(\the\numexpr\catcodetable@atletter\relax,
+                "\string\\ShellEscape ")
+  else
+     tex.sprint(\the\numexpr\catcodetable@atletter\relax,
+                "\string\\shellesc@write " .. s)
+  end
+end
+shellesc.write_or_execute=write_or_execute
+}
+\let\shellesc@write\write
+\protected\def\write{\directlua{shellesc.write_or_execute()}}
+\endinput
+%%
+%% End of file `shellesc.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/showkeys.sty b/Master/texmf-dist/tex/latex-dev/tools/showkeys.sty
new file mode 100644
index 00000000000..fce08f453d7
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/showkeys.sty
@@ -0,0 +1,272 @@
+%%
+%% This is file `showkeys.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% showkeys.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% File: showkeys.dtx Copyright (C) 1992-1997 David Carlisle
+%% File: showkeys.dtx Copyright (C) 2006-2019 David Carlisle, LaTeX3 Project
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{showkeys}
+          [2014/10/28 v3.17 Show cite and label keys (DPC, MH)]
+\DeclareOption{notref}{\let\SK@ref\@empty}
+\DeclareOption{notcite}{\let\SK@cite\@empty}
+\let\SK@refcolor\relax
+\let\SK@labelcolor\relax
+\DeclareOption{color}{\AtEndOfPackage{%
+  \RequirePackage{color}%
+  \definecolor{refkey}{gray}{.75}%
+  \definecolor{labelkey}{gray}{.75}%
+  \def\SK@refcolor{\color{refkey}}%
+  \def\SK@labelcolor{\color{labelkey}}}}
+\DeclareOption{final}{%
+  \providecommand*\showkeyslabelformat[1]{}%
+  \endinput}
+\DeclareOption{draft}{}
+\ProcessOptions
+\let\SK@label\label
+\let\SK@bibitem\@bibitem
+\let\SK@lbibitem\@lbibitem
+\def\label#1{%
+  \@bsphack
+  \SK@\SK@@label{#1}%
+  \begingroup
+    \SK@label{#1}%
+  \endgroup
+  \@esphack}
+\def\@bibitem#1{%
+  \SK@bibitem{#1}\SK@\SK@@label{#1}\ignorespaces}
+\def\@lbibitem[#1]#2{%
+  \SK@lbibitem[{#1}]{#2}\SK@\SK@@label{#2}\ignorespaces}
+\def\SK@#1#2{%
+  \protected@edef\@tempa{#2}%
+  \expandafter#1\meaning\@tempa\SK@}
+\providecommand*\showkeyslabelformat[1]{%
+  \fbox{\normalfont\small\ttfamily#1}}
+\def\SK@@label#1>#2\SK@{%
+  \gdef\SK@lab{\smash{\SK@labelcolor\showkeyslabelformat{#2}}}%
+  \ifvmode
+    \if@inlabel
+      \global\setbox\@labels\hbox{%
+        \llap{\SK@lab\SK@lab@relax
+              \kern\@totalleftmargin\kern\marginparsep}%
+        \box\@labels}%
+    \else
+      \dimen@\prevdepth
+      \nointerlineskip
+      \ifinner
+        \skip@\lastskip\unskip
+        \advance\skip@\lastskip\unskip
+        \setbox\z@\lastbox
+        \ifvoid\z@
+          \llap{\SK@lab\SK@lab@relax\kern\marginparsep}%
+        \else
+          \hbox{\box\z@\rlap{\kern\marginparsep\SK@labx}}%
+        \fi
+        \vskip\skip@
+      \else
+        \llap{\SK@lab\SK@lab@relax\kern\marginparsep}%
+      \fi
+      \prevdepth\dimen@
+    \fi
+  \else
+    \csname SK@\@currenvir\endcsname
+    \ifSK@equation\else
+      \ifmmode
+        \SK@labx
+      \else
+        \ifinner
+          \rlap\SK@lab
+      \else
+          \vadjust{\llap{\SK@lab\kern\marginparsep}}%
+        \fi
+        \SK@lab@relax
+      \fi
+    \fi
+  \fi}
+\AtBeginDocument{%
+  \let\SK@eqnnum\@eqnnum
+  \@ifpackageloaded{amsmath}{%
+    \let\SK@tagform@\tagform@
+    \let\SK@maketag@@@\maketag@@@
+    \iftagsleft@
+      \def\tagform@#1{%
+        \ifx\df@label\@empty
+          \SK@lab@relax
+        \else
+          \expandafter\SK@@label\meaning\df@label\SK@
+        \fi
+        \llap{\SK@lab\kern\marginparsep}%
+        \SK@lab@relax\SK@tagform@{#1}}%
+      \def\maketag@@@#1{%
+        \ifx\df@label\@empty
+          \SK@lab@relax
+        \else
+          \expandafter\SK@@label\meaning\df@label\SK@
+        \fi
+        \llap{\SK@lab\kern\marginparsep}\SK@lab@relax
+        \SK@maketag@@@{#1}%
+      }%
+      \def\@eqnnum{%
+        \llap{\SK@lab\kern\displaywidth\kern\marginparsep}%
+        \SK@lab@relax\SK@eqnnum}%
+    \else
+      \def\tagform@#1{%
+        \ifx\df@label\@empty
+          \SK@lab@relax
+        \else
+          \expandafter\SK@@label\meaning\df@label\SK@
+        \fi
+        \SK@tagform@{#1}%
+        \rlap{\kern\marginparsep\SK@lab}\SK@lab@relax}%
+      \def\maketag@@@#1{%
+        \ifx\df@label\@empty
+          \SK@lab@relax
+        \else
+          \expandafter\SK@@label\meaning\df@label\SK@
+        \fi
+        \SK@maketag@@@{#1}%
+        \rlap{\kern\marginparsep\SK@lab}\SK@lab@relax
+      }%
+      \def\@eqnnum{\SK@eqnnum\rlap{\kern\marginparsep\SK@lab}%
+        \SK@lab@relax}%
+    \fi
+  }%
+  {%
+    \@ifundefined{ver@leqno.clo}{%
+      \def\@eqnnum{\SK@eqnnum\rlap{\kern\marginparsep\SK@lab}%
+        \SK@lab@relax}%
+    }{%
+      \def\@eqnnum{%
+        \llap{\SK@lab\kern\displaywidth\kern\marginparsep}%
+        \SK@lab@relax\SK@eqnnum}%
+    }%
+  }%
+}
+\def\SK@labx{\rlap\SK@lab\global\let\SK@lab\relax}
+\def\SK@lab@relax{\global\let\SK@lab\relax}\SK@lab@relax
+\newif\ifSK@equation
+\let\SK@equation\SK@equationtrue
+\let\SK@eqnarray\SK@equationtrue
+\toks@\expandafter{\eqnarray}
+\edef\eqnarray{\let\noexpand\tagform@\noexpand\SK@tagform@\the\toks@}
+\let\SK@align\SK@equationtrue
+\let\SK@alignat\SK@equationtrue
+\let\SK@xalignat\SK@equationtrue
+\let\SK@xxalignat\SK@equationtrue
+\let\SK@gather\SK@equationtrue
+\let\SK@multline\SK@equationtrue
+\let\SK@flalign\SK@equationtrue
+\expandafter\let\csname SK@align*\endcsname\SK@equationtrue
+\expandafter\let\csname SK@alignat*\endcsname\SK@equationtrue
+\expandafter\let\csname SK@flalign*\endcsname\SK@equationtrue
+\expandafter\let\csname SK@gather*\endcsname\SK@equationtrue
+\expandafter\let\csname SK@multline*\endcsname\SK@equationtrue
+\expandafter\let\csname SK@equation*\endcsname\SK@equationtrue
+\def\SK@def#1{%
+  \edef\@tempa{\expandafter\@gobble\string#1}%
+  \@ifundefined{\@tempa\space}%
+    {\expandafter\let\csname SK@\@tempa\endcsname#1}%
+    {\expandafter\let\csname SK@\@tempa\expandafter\endcsname
+                         \csname\@tempa\space\endcsname}%
+  \expandafter\def\expandafter#1\expandafter{%
+        \expandafter\protect\csname\@tempa\space\endcsname}%
+  \expandafter\def\csname\@tempa\space\endcsname}
+\ifx\SK@ref\@empty
+\AtBeginDocument{%
+  \@ifpackageloaded{varioref}{%
+    \SK@def\@@vpageref#1[#2]#3{{%
+      \let\label\SK@label
+      \SK@@@vpageref{#1}[{#2}]{#3}}}%
+    \def\vr@f#1{%
+      \leavevmode\unskip\vref@space
+      \ref{#1}%
+      {\let\label\SK@label
+      \vpageref[\unskip]{#1}}}%
+  }{}}
+\else
+\AtBeginDocument{%
+  \SK@def\ref#1{\SK@\SK@@ref{#1}\SK@ref{#1}}%
+  \SK@def\pageref#1{\SK@\SK@@ref{#1}\SK@pageref{#1}}%
+  \@ifpackageloaded{varioref}{%
+    \SK@def\@@vpageref#1[#2]#3{{%
+      \let\label\SK@label\let\ref\SK@ref\let\pageref\SK@pageref
+      \leavevmode\unskip\SK@\SK@@ref{#3}\SK@@@vpageref{#1}[{#2}]{#3}}}%
+    \def\vr@f#1{%
+      \leavevmode\unskip\vref@space
+      \ref{#1}%
+      \let\label\SK@label\let\ref\SK@ref\let\pageref\SK@pageref
+      \vpageref[\unskip]{#1}}%
+  }{}}
+\fi
+\ifx\SK@cite\@empty
+\AtBeginDocument{%
+  \ifx\HAR@checkdef\@undefined\else
+      \expandafter\let\expandafter
+         \SK@HAR@bi\csname\string\harvarditem\endcsname
+      \expandafter\def\csname\string\harvarditem\endcsname[#1]#2#3#4{%
+        \SK@HAR@bi[{#1}]{#2}{#3}{#4}\SK@\SK@@label{#4}}%
+  \fi}
+\else
+\AtBeginDocument{%
+  \ifx\HAR@checkdef\@undefined
+    \ifx\citen\@undefined
+      \SK@def\@citex[#1]#2{\SK@citex[{#1}]{#2}}%
+    \else
+      \SK@def\citen#1{\SK@\SK@@ref{#1}\SK@citen{#1}}%
+    \fi
+    \SK@def\citeauthor#1{\SK@\SK@@ref{#1}\SK@citeauthor{#1}}%
+    \SK@def\citefullauthor#1{\SK@\SK@@ref{#1}\SK@citefullauthor{#1}}%
+    \SK@def\citeyear#1{\SK@\SK@@ref{#1}\SK@citeyear{#1}}%
+  \else
+    \SK@def\HAR@checkdef#1#2{%
+      \expandafter\SK@\expandafter\SK@@ref\expandafter{#1}%
+      \SK@HAR@checkdef{#1}{#2}}%
+      \expandafter\let\expandafter
+         \SK@HAR@bi\csname\string\harvarditem\endcsname
+      \expandafter\def\csname\string\harvarditem\endcsname[#1]#2#3#4{%
+        \SK@HAR@bi[{#1}]{#2}{#3}{#4}\SK@\SK@@label{#4}}%
+  \fi}
+\def\SK@citex[#1]#2{%
+  \SK@\SK@@ref{#2}\SK@@citex[{#1}]{#2}}
+\fi
+\def\SK@@ref#1>#2\SK@{%
+  \leavevmode\vbox to\z@{{%
+    \vss
+    \SK@refcolor
+    \rlap{\vrule\raise .75em%
+       \hbox{\underbar{\normalfont\footnotesize\ttfamily#2}}}}}}
+\endinput
+%%
+%% End of file `showkeys.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/somedefs.sty b/Master/texmf-dist/tex/latex-dev/tools/somedefs.sty
new file mode 100644
index 00000000000..441f96fb26c
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/somedefs.sty
@@ -0,0 +1,74 @@
+%%
+%% This is file `somedefs.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% somedefs.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{somedefs}[1994/06/01 v0.03 Toolkit for optional definitions]
+\def\UseSomeDefinitions{%
+   \let\ProvidesDefinition\@providesdefinition
+}
+\def\UseAllDefinitions{%
+   \let\ProvidesDefinition\@firstofone
+}
+\def\UseDefinition#1{%
+   \expandafter\let\csname#1\endcsname\@unprovided@definition
+}
+\def\ProvidesDefinition#1{%
+   \PackageError{somedefs}%
+     {No \noexpand\UseSomeDefinitions or \string\UseAllDefinitions}%
+     {The package which used the `somedefs' package has an error.}%
+}
+\def\@providesdefinition#1{\@provides@definition#1\relax
+   \@provides@definition}
+\def\@provides@definition#1#2#3\@provides@definition{%
+   \ifx#2\@unprovided@definition
+      #1#2#3%
+   \fi
+}
+\def\@unprovided@definition{%
+   \PackageError{somedefs}%
+     {Package `somedefs' error: this command was never defined}%
+     {You have requested a command which does not exist.}%
+}
+\@onlypreamble\UseSomeDefinitions
+\@onlypreamble\UseAllDefinitions
+\@onlypreamble\UseDefinition
+\@onlypreamble\ProvidesDefinition
+\@onlypreamble\@providesdefinition
+\@onlypreamble\@provides@definition
+\endinput
+%%
+%% End of file `somedefs.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/tabularx.sty b/Master/texmf-dist/tex/latex-dev/tools/tabularx.sty
new file mode 100644
index 00000000000..8b18d3c12ed
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/tabularx.sty
@@ -0,0 +1,229 @@
+%%
+%% This is file `tabularx.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% tabularx.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% File: tabularx.dtx Copyright (C) 1991-1999 2012 2014 2016 2017 David Carlisle
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{tabularx}
+          [2016/02/03 v2.11b `tabularx' package (DPC)]
+\DeclareOption{infoshow}{\AtEndOfPackage\tracingtabularx}
+\DeclareOption{debugshow}{\AtEndOfPackage\tracingtabularx}
+\ProcessOptions
+\RequirePackage{array}[1994/02/03]
+\newdimen\TX@col@width
+\newdimen\TX@old@table
+\newdimen\TX@old@col
+\newdimen\TX@target
+\newdimen\TX@delta
+\newcount\TX@cols
+\newif\ifTX@
+\def\tabularx#1{%
+\edef\TX@{\@currenvir}%
+  {\ifnum0=`}\fi
+  \setlength\TX@target{#1}%
+  \TX@typeout{Target width: #1 = \the\TX@target.}%
+  \toks@{}\TX@get@body}
+
+\let\endtabularx\relax
+\long\def\TX@get@body#1\end
+  {\toks@\expandafter{\the\toks@#1}\TX@find@end}
+\def\TX@find@end#1{%
+  \def\@tempa{#1}%
+  \ifx\@tempa\TX@\expandafter\TX@endtabularx
+  \else\toks@\expandafter
+    {\the\toks@\end{#1}}\expandafter\TX@get@body\fi}
+\long\def\TX@find@endtabularxa
+       #1\endtabularx#2\endtabularx#3\TX@find@endtabularxa{%
+  \ifx\TX@#2\relax\else
+  \toks@\expandafter{\the\toks@#1}%
+  \fi}
+\long\def\TX@find@endtabularxb
+       #1\endtabularx#2\endtabularx#3\TX@find@endtabularxb{%
+  \ifx\TX@#2%
+    \expandafter\@firstoftwo
+  \else
+     \expandafter\@secondoftwo
+  \fi
+  {#1}{#2}}
+\def\TX@find@endtabularxbb{%
+  \expandafter\expandafter\expandafter
+  \TX@find@endtabularxb
+}
+\def\TX@{tabularx}
+\def\TX@endtabularx{%
+   \expandafter\expandafter\expandafter
+     \TX@find@endtabularxa\csname end\TX@\endcsname
+     \endtabularx\TX@\endtabularx\TX@find@endtabularxa
+  \expandafter\TX@newcol\expandafter{\tabularxcolumn{\TX@col@width}}%
+  \let\verb\TX@verb
+  \def\@elt##1{\global\value{##1}\the\value{##1}\relax}%
+  \edef\TX@ckpt{\cl@@ckpt}%
+  \let\@elt\relax
+  \TX@old@table\maxdimen
+  \TX@col@width\TX@target
+  \global\TX@cols\@ne
+  \TX@typeout@
+    {\@spaces Table Width\@spaces Column Width\@spaces X Columns}%
+  \TX@trial{\def\NC@rewrite@X{%
+          \global\advance\TX@cols\@ne\NC@find p{\TX@col@width}}}%
+  \loop
+    \TX@arith
+    \ifTX@
+    \TX@trial{}%
+  \repeat
+  {\let\@footnotetext\TX@ftntext\let\@xfootnotenext\TX@xftntext
+    \csname tabular*\expandafter\endcsname\expandafter\TX@target
+      \the\toks@
+    \csname endtabular*\endcsname}%
+  \global\TX@ftn\expandafter{\expandafter}\the\TX@ftn
+  \ifnum0=`{\fi}%
+   \expandafter\expandafter\expandafter
+   \TX@find@endtabularxbb
+    \expandafter\end\expandafter{\TX@}%
+    \endtabularx\TX@\endtabularx\TX@find@endtabularxb
+}
+\def\TX@arith{%
+  \TX@false
+  \@tempdimb\maxdimen
+  \divide\@tempdimb\TX@cols
+  \ifdim\TX@col@width>\@tempdimb
+    \TX@typeout@{Don't exceed \maxdimen}%
+    \wd\@tempboxa\maxdimen
+  \fi
+  \ifdim\TX@old@table=\wd\@tempboxa
+    \TX@col@width\TX@old@col
+    \TX@typeout@{Reached minimum width, backing up.}%
+  \else
+    \dimen@\wd\@tempboxa
+    \advance\dimen@ -\TX@target
+    \ifdim\dimen@<\TX@delta
+      \TX@typeout@{Reached target.}%
+    \else
+      \ifnum\TX@cols>\@ne
+        \advance\TX@cols\m@ne
+      \fi
+      \divide\dimen@\TX@cols
+      \advance\dimen@ -\TX@col@width
+      \ifdim \dimen@ >\z@
+        \PackageWarning{tabularx}%
+           {X Columns too narrow (table too wide)\MessageBreak}%
+        \TX@col@width\TX@error@width\relax
+      \else
+        \TX@old@col\TX@col@width
+        \TX@old@table\wd\@tempboxa
+        \TX@col@width-\dimen@
+        \TX@true
+      \fi
+    \fi
+  \fi}
+\def\TX@error@width{1em}
+\TX@delta\hfuzz
+\newcolumntype{X}{}
+\def\tabularxcolumn#1{p{#1}}
+\def\TX@newcol{\newcol@{X}[0]}
+\def\TX@trial#1{%
+  \setbox\@tempboxa\hbox{%
+    #1\relax
+  \let\@footnotetext\TX@trial@ftn
+  \let\TX@vwarn\@empty
+   \expandafter\let\expandafter\tabularx\csname tabular*\endcsname
+   \expandafter\let\expandafter\endtabularx\csname endtabular*\endcsname
+   \def\write{\begingroup
+     \def\let{\afterassignment\endgroup\toks@}%
+        \afterassignment\let\count@}%
+    \hbadness\@M
+    \hfuzz\maxdimen
+    \let\hbadness\@tempcnta
+    \let\hfuzz\@tempdima
+    \expandafter\tabular\the\toks@
+    \endtabular}%
+  \TX@ckpt
+  \TX@typeout@{\@spaces
+     \expandafter\TX@align
+        \the\wd\@tempboxa\space\space\space\space\space\@@
+     \expandafter\TX@align
+        \the\TX@col@width\space\space\space\space\space\@@
+     \@spaces\the\TX@cols}}
+\def\TX@align#1.#2#3#4#5#6#7#8#9\@@{%
+  \ifnum#1<10 \space\fi
+  \ifnum#1<100 \space\fi
+  \ifnum#1<\@m\space\fi
+  \ifnum#1<\@M\space\fi
+  #1.#2#3#4#5#6#7#8\space\space}
+\ifx\arraybackslash\@undefined
+\def\arraybackslash{\let\\\tabularnewline}
+\fi
+\def\tracingtabularx{%
+  \def\TX@typeout{\PackageWarningNoLine{tabularx}}%
+  \def\TX@typeout@##1{\typeout{(tabularx) ##1}}}
+\let\TX@typeout\@gobble
+\let\TX@typeout@\@gobble
+\newtoks\TX@ftn
+\long\def\TX@ftntext#1{%
+  \edef\@tempa{\the\TX@ftn\noexpand\footnotetext
+                    [\the\csname c@\@mpfn\endcsname]}%
+  \global\TX@ftn\expandafter{\@tempa{#1}}}%
+\long\def\TX@xftntext[#1]#2{%
+  \global\TX@ftn\expandafter{\the\TX@ftn\footnotetext[#1]{#2}}}
+\long\def\TX@trial@ftn#1{}
+{\uccode`\*=`\ %
+\uppercase{\gdef\TX@verb{%
+  \leavevmode\null\TX@vwarn
+  {\ifnum0=`}\fi\ttfamily\let\\\ignorespaces
+  \@ifstar{\let~*\TX@vb}{\TX@vb}}}}
+\def\TX@vb#1{\def\@tempa##1#1{\toks@{##1}\edef\@tempa{\the\toks@}%
+    \expandafter\TX@v\meaning\@tempa\\ \\\ifnum0=`{\fi}}\@tempa!}
+\def\TX@v#1!{\afterassignment\TX@vfirst\let\@tempa= }
+\begingroup
+\catcode`\*=\catcode`\#
+\catcode`\#=12
+\gdef\TX@vfirst{%
+  \if\@tempa#%
+    \def\@tempb{\TX@v@#}%
+  \else
+    \let\@tempb\TX@v@
+    \if\@tempa\space~\else\@tempa\fi
+  \fi
+  \@tempb}
+\gdef\TX@v@*1 *2{%
+  \TX@v@hash*1##\relax\if*2\\\else~\expandafter\TX@v@\fi*2}
+\gdef\TX@v@hash*1##*2{*1\ifx*2\relax\else#\expandafter\TX@v@hash\fi*2}
+\endgroup
+\def\TX@vwarn{%
+  \@warning{\noexpand\verb may be unreliable inside tabularx}%
+  \global\let\TX@vwarn\@empty}
+\endinput
+%%
+%% End of file `tabularx.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/thb.sty b/Master/texmf-dist/tex/latex-dev/tools/thb.sty
new file mode 100644
index 00000000000..f360a0abde4
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/thb.sty
@@ -0,0 +1,59 @@
+%%
+%% This is file `thb.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% theorem.dtx  (with options: `thb')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%%
+\def\FMithmInfo{2014/10/28 v2.2c Theorem extension package (FMi)}
+%%
+%% Package `theorem' to use with LaTeX2e
+%% Copyright (C) 1989-1995 Frank Mittelbach, all rights reserved.
+\begingroup \makeatletter
+\@ifundefined{theorem@style}{\input{theorem.sty}}{}
+\ProvidesFile{thb.sty}
+             [\FMithmInfo]
+\gdef\th@break{\normalfont\slshape
+  \def\@begintheorem##1##2{\item[%
+       \rlap{\vbox{\hbox{\hskip \labelsep\theorem@headerfont ##1\ ##2}%
+                   \hbox{\strut}}}]}%
+\def\@opargbegintheorem##1##2##3{%
+  \item[\rlap{\vbox{\hbox{\hskip \labelsep \theorem@headerfont
+                     ##1\ ##2\ (##3)}%
+                    \hbox{\strut}}}]}}
+\endgroup
+
+\endinput
+%%
+%% End of file `thb.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/thc.sty b/Master/texmf-dist/tex/latex-dev/tools/thc.sty
new file mode 100644
index 00000000000..87df00fca1e
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/thc.sty
@@ -0,0 +1,56 @@
+%%
+%% This is file `thc.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% theorem.dtx  (with options: `thc')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%%
+\def\FMithmInfo{2014/10/28 v2.2c Theorem extension package (FMi)}
+%%
+%% Package `theorem' to use with LaTeX2e
+%% Copyright (C) 1989-1995 Frank Mittelbach, all rights reserved.
+\begingroup \makeatletter
+\@ifundefined{theorem@style}{\input{theorem.sty}}{}
+\ProvidesFile{thc.sty}
+             [\FMithmInfo]
+\gdef\th@change{\normalfont\slshape
+  \def\@begintheorem##1##2{\item
+       [\hskip\labelsep \theorem@headerfont ##2\ ##1]}%
+\def\@opargbegintheorem##1##2##3{%
+  \item[\hskip\labelsep \theorem@headerfont ##2\ ##1\ (##3)]}}
+\endgroup
+
+\endinput
+%%
+%% End of file `thc.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/thcb.sty b/Master/texmf-dist/tex/latex-dev/tools/thcb.sty
new file mode 100644
index 00000000000..95bda2153e6
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/thcb.sty
@@ -0,0 +1,59 @@
+%%
+%% This is file `thcb.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% theorem.dtx  (with options: `thcb')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%%
+\def\FMithmInfo{2014/10/28 v2.2c Theorem extension package (FMi)}
+%%
+%% Package `theorem' to use with LaTeX2e
+%% Copyright (C) 1989-1995 Frank Mittelbach, all rights reserved.
+\begingroup \makeatletter
+\@ifundefined{theorem@style}{\input{theorem.sty}}{}
+\ProvidesFile{thcb.sty}
+             [\FMithmInfo]
+\gdef\th@changebreak{\normalfont\slshape
+  \def\@begintheorem##1##2{\item
+       [\rlap{\vbox{\hbox{\hskip\labelsep \theorem@headerfont ##2\ ##1}%
+                    \hbox{\strut}}}]}%
+\def\@opargbegintheorem##1##2##3{%
+  \item[\rlap{\vbox{\hbox{\hskip\labelsep \theorem@headerfont
+                     ##2\ ##1\ (##3)}%
+                    \hbox{\strut}}}]}}
+\endgroup
+
+\endinput
+%%
+%% End of file `thcb.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/theorem.sty b/Master/texmf-dist/tex/latex-dev/tools/theorem.sty
new file mode 100644
index 00000000000..c5b3171b571
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/theorem.sty
@@ -0,0 +1,138 @@
+%%
+%% This is file `theorem.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% theorem.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%%
+\def\FMithmInfo{2014/10/28 v2.2c Theorem extension package (FMi)}
+%%
+%% Package `theorem' to use with LaTeX2e
+%% Copyright (C) 1989-1995 Frank Mittelbach, all rights reserved.
+\@ifundefined{theorem@style}{}{\endinput}
+\NeedsTeXFormat{LaTeX2e}[1995/06/01]
+\ProvidesPackage{theorem}
+         [\FMithmInfo]
+\gdef\theoremstyle#1{%
+   \@ifundefined{th@#1}{\@warning
+          {Unknown theoremstyle `#1'. Using `plain'}%
+          \theorem@style{plain}}%
+      {\theorem@style{#1}}%
+      \begingroup
+        \csname th@\the\theorem@style \endcsname
+      \endgroup}
+\global\let\@begintheorem\relax
+\global\let\@opargbegintheorem\relax
+\newtoks\theorem@style
+\global\theorem@style{plain}
+\gdef\theorembodyfont#1{%
+   \def\@tempa{#1}%
+   \ifx\@tempa\@empty
+    \theorem@bodyfont{}%
+   \else
+    \theorem@bodyfont{\reset@font#1}%
+   \fi
+   }
+\newtoks\theorem@bodyfont
+\global\theorem@bodyfont{}
+\gdef\theoremheaderfont#1{\gdef\theorem@headerfont{#1}%
+       \gdef\theoremheaderfont##1{%
+        \typeout{\string\theoremheaderfont\space should be used
+                 only once.}}}
+\ifx\upshape\undefined
+\gdef\theorem@headerfont{\bfseries}
+\else \gdef\theorem@headerfont{\normalfont\bfseries}\fi
+\gdef\th@plain{\@input@{thp.sty}}
+\gdef\th@break{\@input@{thb.sty}}
+\gdef\th@marginbreak{\@input@{thmb.sty}}
+\gdef\th@changebreak{\@input@{thcb.sty}}
+\gdef\th@change{\@input@{thc.sty}}
+\gdef\th@margin{\@input@{thm.sty}}
+\gdef\@xnthm#1#2[#3]{\expandafter\@ifdefinable\csname #1\endcsname
+   {%
+    \@definecounter{#1}\@newctr{#1}[#3]%
+    \expandafter\xdef\csname the#1\endcsname
+      {\expandafter \noexpand \csname the#3\endcsname
+       \@thmcountersep \@thmcounter{#1}}%
+    \def\@tempa{\global\@namedef{#1}}%
+    \expandafter \@tempa \expandafter{%
+      \csname th@\the \theorem@style
+            \expandafter \endcsname \the \theorem@bodyfont
+     \@thm{#1}{#2}}%
+    \global \expandafter \let \csname end#1\endcsname \@endtheorem
+   }}
+\gdef\@ynthm#1#2{\expandafter\@ifdefinable\csname #1\endcsname
+   {\@definecounter{#1}%
+    \expandafter\xdef\csname the#1\endcsname{\@thmcounter{#1}}%
+    \def\@tempa{\global\@namedef{#1}}\expandafter \@tempa
+     \expandafter{\csname th@\the \theorem@style \expandafter
+     \endcsname \the\theorem@bodyfont \@thm{#1}{#2}}%
+    \global \expandafter \let \csname end#1\endcsname \@endtheorem}}
+\gdef\@othm#1[#2]#3{%
+  \expandafter\ifx\csname c@#2\endcsname\relax
+   \@nocounterr{#2}%
+  \else
+   \expandafter\@ifdefinable\csname #1\endcsname
+   {\expandafter \xdef \csname the#1\endcsname
+     {\expandafter \noexpand \csname the#2\endcsname}%
+    \def\@tempa{\global\@namedef{#1}}\expandafter \@tempa
+     \expandafter{\csname th@\the \theorem@style \expandafter
+     \endcsname \the\theorem@bodyfont \@thm{#2}{#3}}%
+    \global \expandafter \let \csname end#1\endcsname \@endtheorem}%
+  \fi}
+\gdef\@thm#1#2{\refstepcounter{#1}%
+   \trivlist
+   \@topsep \theorempreskipamount               % used by first \item
+   \@topsepadd \theorempostskipamount           % used by \@endparenv
+   \@ifnextchar [%
+   {\@ythm{#1}{#2}}%
+   {\@begintheorem{#2}{\csname the#1\endcsname}\ignorespaces}}
+\global\let\@xthm\relax
+\newskip\theorempreskipamount
+\newskip\theorempostskipamount
+\global\setlength\theorempreskipamount{12pt plus 5pt minus 3pt}
+\global\setlength\theorempostskipamount{8pt plus 3pt minus 1.5pt}
+\global\let\@endtheorem=\endtrivlist
+\@onlypreamble\@xnthm
+\@onlypreamble\@ynthm
+\@onlypreamble\@othm
+\@onlypreamble\newtheorem
+\@onlypreamble\theoremstyle
+\@onlypreamble\theorembodyfont
+\@onlypreamble\theoremheaderfont
+\theoremstyle{plain}
+
+\endinput
+%%
+%% End of file `theorem.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/thm.sty b/Master/texmf-dist/tex/latex-dev/tools/thm.sty
new file mode 100644
index 00000000000..851b176967c
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/thm.sty
@@ -0,0 +1,56 @@
+%%
+%% This is file `thm.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% theorem.dtx  (with options: `thm')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%%
+\def\FMithmInfo{2014/10/28 v2.2c Theorem extension package (FMi)}
+%%
+%% Package `theorem' to use with LaTeX2e
+%% Copyright (C) 1989-1995 Frank Mittelbach, all rights reserved.
+\begingroup \makeatletter
+\@ifundefined{theorem@style}{\input{theorem.sty}}{}
+\ProvidesFile{thm.sty}
+             [\FMithmInfo]
+\gdef\th@margin{\normalfont\slshape
+  \def\@begintheorem##1##2{\item
+       [\theorem@headerfont \llap{##2}\hskip\labelsep ##1]}%
+\def\@opargbegintheorem##1##2##3{%
+  \item[\theorem@headerfont \llap{##2}\hskip\labelsep ##1\ (##3)]}}
+\endgroup
+
+\endinput
+%%
+%% End of file `thm.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/thmb.sty b/Master/texmf-dist/tex/latex-dev/tools/thmb.sty
new file mode 100644
index 00000000000..00a73fa853b
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/thmb.sty
@@ -0,0 +1,60 @@
+%%
+%% This is file `thmb.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% theorem.dtx  (with options: `thmb')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%%
+\def\FMithmInfo{2014/10/28 v2.2c Theorem extension package (FMi)}
+%%
+%% Package `theorem' to use with LaTeX2e
+%% Copyright (C) 1989-1995 Frank Mittelbach, all rights reserved.
+\begingroup \makeatletter
+\@ifundefined{theorem@style}{\input{theorem.sty}}{}
+\ProvidesFile{thmb.sty}
+             [\FMithmInfo]
+\gdef\th@marginbreak{\normalfont\slshape
+  \def\@begintheorem##1##2{\item
+       [\rlap{\vbox{\theorem@headerfont
+                    \hbox{\llap{##2}\hskip\labelsep ##1}%
+                    \hbox{\strut}}}]}%
+\def\@opargbegintheorem##1##2##3{%
+  \item[\rlap{\vbox{\theorem@headerfont
+                    \hbox{\llap{##2}\hskip\labelsep ##1\ (##3)}%
+                    \hbox{\strut}}}]}}
+\endgroup
+
+\endinput
+%%
+%% End of file `thmb.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/thp.sty b/Master/texmf-dist/tex/latex-dev/tools/thp.sty
new file mode 100644
index 00000000000..e062bef21a9
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/thp.sty
@@ -0,0 +1,56 @@
+%%
+%% This is file `thp.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% theorem.dtx  (with options: `thp')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%%
+\def\FMithmInfo{2014/10/28 v2.2c Theorem extension package (FMi)}
+%%
+%% Package `theorem' to use with LaTeX2e
+%% Copyright (C) 1989-1995 Frank Mittelbach, all rights reserved.
+\begingroup \makeatletter
+\@ifundefined{theorem@style}{\input{theorem.sty}}{}
+\ProvidesFile{thp.sty}
+             [\FMithmInfo]
+\gdef\th@plain{\normalfont\itshape
+  \def\@begintheorem##1##2{%
+        \item[\hskip\labelsep \theorem@headerfont ##1\ ##2]}%
+\def\@opargbegintheorem##1##2##3{%
+   \item[\hskip\labelsep \theorem@headerfont ##1\ ##2\ (##3)]}}
+\endgroup
+
+\endinput
+%%
+%% End of file `thp.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/trace.sty b/Master/texmf-dist/tex/latex-dev/tools/trace.sty
new file mode 100644
index 00000000000..ea08862a68c
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/trace.sty
@@ -0,0 +1,141 @@
+%%
+%% This is file `trace.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% trace.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%%
+%% (C) Copyright (C) 1999-2019 Frank Mittelbach
+%% All rights reserved.
+%%
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{trace}
+          [2018/10/13 v1.1e trace LaTeX code]
+\NeedsTeXFormat{LaTeX2e}[1998/12/01]
+\DeclareOption{logonly}
+   {\let\tracingonline@p\z@}
+\let\tracingonline@p\@ne
+\DeclareOption{full}
+    {\AtEndOfPackage{\let\conditionally@traceoff\@empty
+                     \let\conditionally@traceon\@empty
+                     \let\traceon\tr@ce@n
+    }}
+\ProcessOptions\relax
+\newif\if@tracing
+\def\traceon{\let\conditionally@traceoff\unconditionally@traceoff
+             \tr@ce@n}
+
+%% \tracinglostchars\z@
+  \def\tr@ce@n{%
+    \@tracingtrue
+    \tracingstats\tw@
+    \tracingpages\@ne
+    \tracinglostchars\@ne
+    \tracingparagraphs\@ne
+    \errorcontextlines\maxdimen
+    \ifnum\tracingoutput=\@ne
+    \else
+      \tracingoutput\tw@
+      \showboxbreadth\maxdimen
+      \showboxdepth\maxdimen
+    \fi
+    \errorstopmode
+    \tracingmacros\tw@
+    \tracinggroups\@ne
+    \tracingrestores\@ne
+    \tracingcommands\tw@
+    \tracingassigns\@ne
+    \tracingonline\tracingonline@p
+  }
+  \def\conditionally@traceoff{%
+    \tracingassigns\z@
+    \tracingrestores\z@
+    \tracingcommands\z@
+    \tracingpages\z@
+    \tracingmacros\z@
+    \ifnum\tracingoutput=\tw@
+      \tracingoutput\z@
+      \showboxbreadth\m@ne
+      \showboxdepth\m@ne
+    \fi
+    \tracingstats\@ne
+    \tracingparagraphs\z@
+    \tracinggroups\z@
+  }
+\let\unconditionally@traceoff\conditionally@traceoff
+\def\tracingall{\let\conditionally@traceoff\@empty
+  \let\tracingonline@p\@ne
+  \tr@ce@n
+}
+\def\traceoff{\unconditionally@traceoff \@tracingfalse}
+\def\conditionally@traceon{\if@tracing \expandafter \traceon \fi}
+\def\calc@open({\begingroup
+   \conditionally@traceoff
+   \aftergroup\calc@initB
+   \begingroup\aftergroup\calc@initB
+   \calc@pre@scan}
+\def\define@newfont{%
+  \begingroup
+    \conditionally@traceoff
+    \let\typeout\@font@info
+    \escapechar\m@ne
+    \expandafter\expandafter\expandafter
+       \split@name\expandafter\string\font@name\@nil
+      \try@load@fontshape % try always
+    \expandafter\ifx
+       \csname\curr@fontshape\endcsname \relax
+      \wrong@fontshape\else
+      \extract@font\fi
+  \endgroup}
+\frozen@everymath =
+   {\conditionally@traceoff \check@mathfonts \conditionally@traceon
+    \the\everymath}
+\frozen@everydisplay =
+   {\conditionally@traceoff \check@mathfonts \conditionally@traceon
+    \the\everydisplay}
+\def \maybe@ic@ {%
+  \ifdim \fontdimen\@ne\font>\z@
+  \else
+    \conditionally@traceoff
+    \maybe@ictrue
+    \expandafter\@tfor\expandafter\reserved@a\expandafter:\expandafter=%
+        \nocorrlist
+    \do \t@st@ic
+    \ifmaybe@ic \sw@slant \fi
+    \conditionally@traceon
+  \fi
+}
+\endinput
+%%
+%% End of file `trace.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/varioref-2016-02-16.sty b/Master/texmf-dist/tex/latex-dev/tools/varioref-2016-02-16.sty
new file mode 100644
index 00000000000..78aa06db6b8
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/varioref-2016-02-16.sty
@@ -0,0 +1,779 @@
+%%
+%% This is file `varioref.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% varioref.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% Copyright 1993-2017
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% Package varioref to use with LaTeX2e
+%% Copyright (C) 1992-2016  Frank Mittelbach, all rights reserved.
+%%
+%% For additions or updates to the language options please contact
+%% the author at
+%%
+%%   frank.mittelbach@latex-project.org
+%%
+%% In case of bugs, please use "latexbug.tex" (category tools) to report them.
+%%
+\NeedsTeXFormat{LaTeX2e}[1995/05/16]
+\ProvidesPackage{varioref}
+    [2016/02/16 v1.5c package for extended references (FMi)]
+%%
+
+
+\def\vref@addto#1#2{%
+  #2%
+  \@temptokena{#2}%
+  \ifx#1\undefined
+     \edef#1{\the\@temptokena}%
+  \else
+     \toks@\expandafter{#1}%
+     \edef#1{\the\toks@\the\@temptokena}%
+  \fi
+  \@temptokena{}\toks@\@temptokena
+}
+\@onlypreamble\vref@addto
+\def\vref@excuse#1{%
+  \PackageWarningNoLine{varioref}{Sorry, language `#1'
+            not supported%
+            \MessageBreak
+            in this version.
+            English strings used by default.
+            \MessageBreak
+            Please modify \protect\reftext... commands manually.%
+            \MessageBreak\MessageBreak
+            If you can suggest translations for
+            this language,%
+            \MessageBreak
+            please mail them
+            to the author of this package}}
+\@onlypreamble\vref@excuse
+\def\vref@stringwarning#1{%
+  \PackageWarningNoLine{varioref}{Sorry, there is no proper
+            translation for the string\MessageBreak
+            produced by \protect#1\on@line.\MessageBreak
+            English string used instead.\MessageBreak
+            \MessageBreak
+            If you can suggest translations for
+            the current\MessageBreak
+            language, please mail them
+            to the author of this\MessageBreak package}}
+\DeclareOption{afrikaans}
+  {\vref@addto\extrasafrikaans{%
+    \def\reftextfaceafter {op die \reftextvario{regterbladsy}%
+                                               {bladsy langsaan}}%
+    \def\reftextfacebefore{op die \reftextvario{linkerbladsy}%
+                                                {bladsy langsaan}}%
+    \def\reftextafter     {op die \reftextvario{volgende bladsy}%
+                                               {bladsy hierna}}%
+    \def\reftextbefore    {op die \reftextvario{vorige bladsy}%
+                                               {bladsy hiervoor}}%
+    \def\reftextcurrent   {op \reftextvario{hierdie}%
+                                           {die huidige} bladsy}%
+    \def\reftextfaraway#1{op bladsy~\pageref{#1}}%
+    \def\reftextpagerange#1#2{op bladsye~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} tot~\ref{#2}}%
+  }}
+\DeclareOption{american}
+  {\vref@addto\extrasamerican{%
+    \def\reftextfaceafter {on the \reftextvario{facing}{next} page}%
+    \def\reftextfacebefore{on the \reftextvario{facing}{preceding}
+                           page}%
+    \def\reftextafter     {on the \reftextvario{following}{next} page}%
+    \def\reftextbefore    {on the \reftextvario{preceding}{previous} page}%
+    \def\reftextcurrent   {on \reftextvario{this}{the current} page}%
+    \def\reftextfaraway#1{on page~\pageref{#1}}%
+    \def\reftextpagerange#1#2{on pages~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} to~\ref{#2}}%
+  }}
+\DeclareOption{austrian}
+  {\vref@addto\extrasaustrian{%
+    \def\reftextfaceafter {auf der n\"achsten Seite}%
+    \def\reftextfacebefore{auf der vorherigen Seite}%
+    \let\reftextafter     \reftextfaceafter
+    \let\reftextbefore    \reftextfacebefore
+    \def\reftextcurrent   {auf dieser Seite}%
+    \def\reftextfaraway#1{auf Seite~\pageref{#1}}%
+    \def\reftextpagerange#1#2{auf Seiten~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} bis~\ref{#2}}%
+  }}
+\DeclareOption{naustrian}
+  {\vref@addto\extrasnaustrian{%
+    \def\reftextfaceafter {auf der n\"achsten Seite}%
+    \def\reftextfacebefore{auf der vorherigen Seite}%
+    \let\reftextafter     \reftextfaceafter
+    \let\reftextbefore    \reftextfacebefore
+    \def\reftextcurrent   {auf dieser Seite}%
+    \def\reftextfaraway#1{auf Seite~\pageref{#1}}%
+    \def\reftextpagerange#1#2{auf Seiten~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} bis~\ref{#2}}%
+  }}
+\DeclareOption{basque}
+  {\vref@addto\extrasbasque{%
+    \def\reftextfaceafter {hurrengo orrialdean}%
+    \def\reftextfacebefore{aurreko orrialdean}%
+    \let\reftextafter     \reftextfaceafter
+    \let\reftextbefore    \reftextfacebefore
+    \def\reftextcurrent   {uneko orrialdean}%
+    \def\reftextfaraway#1{~\pageref{#1}. orrialdean}%
+    \def\reftextpagerange#1#2{~\pageref{#1}--\pageref{#2} orrialdeetan}%
+    \def\reftextlabelrange#1#2{\ref{#1}.etik \ref{#2}.eraino}%
+  }}
+\DeclareOption{bahasam}
+  {\vref@addto\extrasbahasam{%
+    \def\reftextfaceafter {pada muka surat \reftextvario{bertentangan}{berikutnya}}%
+    \def\reftextfacebefore{pada muka surat \reftextvario{bertentangan}{sebelumnya} }%
+    \def\reftextafter     {pada muka surat berikutnya}%
+    \def\reftextbefore    {pada muka surat sebelumnya}%
+    \def\reftextcurrent   {pada muka surat ini}%
+    \def\reftextfaraway#1{pada muka surat~\pageref{#1}}%
+    \def\reftextpagerange#1#2{pada muka surat~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1}--\ref{#2}}%
+  }}
+\DeclareOption{brazil}
+  {\vref@addto\extrasbrazil{%
+    \def\reftextfaceafter {na \reftextvario{p\'agina oposta}{pr\'oxima
+                           p\'agina}}%
+    \def\reftextfacebefore{na p\'agina \reftextvario{oposta}{anterior}}%
+    \def\reftextafter     {na \reftextvario{p\'agina seguinte}{pr\'oxima
+                           p\'agina}}%
+    \def\reftextbefore{na p\'agina \reftextvario{anterior}{precedente}}%
+    \def\reftextcurrent   {\reftextvario{nesta p\'agina}{na p\'agina
+                           corrente}}%
+    \def\reftextfaraway#1{na p\'agina~\pageref{#1}}%
+    \def\reftextpagerange#1#2{nas p\'aginas~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} a~\ref{#2}}%
+  }}
+\DeclareOption{breton}
+  {\vref@excuse{breton}%
+   \vref@addto\extrasbreton{%
+    \def\reftextfaceafter {war ar bajenn \reftextvario{a-dal}{da heul}}%
+    \def\reftextfacebefore{war ar bajenn \reftextvario{a-dal}{a-raok}}%
+    \def\reftextafter     {war ar bajenn da heul}%
+    \def\reftextbefore    {war ar bajenn a-raok}%
+    \def\reftextcurrent   {war ar \reftextvario{bajenn-ma\~n}%
+                                               {bajenn war-wel}}%
+    \def\reftextfaraway#1{war ar bajenn~\pageref{#1}}%
+    \def\reftextpagerange#1#2{\vref@stringwarning\reftextpagerange
+                              on pages~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\vref@stringwarning\reflabelpagerange
+                               \ref{#1} to~\ref{#2}}%
+  }}
+\DeclareOption{bulgarian}%
+ {\vref@addto\extrasbulgarian{%
+   \def\reftextfaceafter{\cyrn\cyra\
+         \reftextvario{\cyrs\cyrery\cyrs\cyre\cyrd\cyrn\cyra\cyrt\cyra}%
+                      {\cyrs\cyrl\cyre\cyrd\cyrv\cyra\cyrshch\cyra\cyrt\cyra}
+         \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyra}%
+   \def\reftextfacebefore{\cyrn\cyra\
+         \reftextvario{\cyrs\cyrery\cyrs\cyre\cyrd\cyrn\cyra\cyrt\cyra}%
+                      {\cyrp\cyrr\cyre\cyrd\cyrn\cyra\cyrt\cyra}
+         \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyra}%
+   \def\reftextafter{\cyrn\cyra\
+         \reftextvario{\cyrs\cyrl\cyre\cyrd\cyrv\cyra\cyrshch\cyra\cyrt\cyra}%
+                      {\cyrs\cyrl\cyre\cyrd\cyrv\cyra\cyrshch\cyra\cyrt\cyra}
+         \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyra}%
+   \def\reftextbefore{\cyrn\cyra\
+         \reftextvario{\cyrp\cyrr\cyre\cyrd\cyrn\cyra\cyrt\cyra}%
+                      {\cyrp\cyrr\cyre\cyrd\cyri\cyrsh\cyrn\cyra\cyrt\cyra}
+         \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyra}%
+   \def\reftextcurrent{\cyrn\cyra\
+         \reftextvario{\cyrt\cyra\cyrz\cyri}%
+                      {\cyrt\cyre\cyrk\cyru\cyrshch\cyra\cyrt\cyra}
+         \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyra}%
+   \def\reftextfaraway#1{\cyrn\cyra\ \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyra
+                         ~\pageref{#1}}%
+   \def\reftextpagerange#1#2{\cyrn\cyra\
+                        \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyri
+                        ~\pageref{#1}--\pageref{#2}}%
+   \def\reftextlabelrange#1#2{\ref{#1} \cyrd\cyro~\ref{#2}}%
+ }}
+\DeclareOption{catalan}
+  {\vref@addto\extrascatalan{%
+    \def\reftextfaceafter {a la p\`agina seg\"uent}%
+    \def\reftextfacebefore{a la p\`agina anterior}%
+    \let\reftextafter     \reftextfaceafter
+    \let\reftextbefore    \reftextfacebefore
+    \def\reftextcurrent   {en aquesta p\`agina}%
+    \def\reftextfaraway#1{a la p\`agina~\pageref{#1}}%
+    \def\reftextpagerange#1#2{a les
+                     p\`agines~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} a~\ref{#2}}%
+  }}
+\DeclareOption{croatian}
+   {\vref@addto\extrascroatian{%
+     \def\reftextfaceafter {na sljede\'coj stranici}%
+     \def\reftextfacebefore{na prethodnoj stranici}%
+     \let\reftextafter     \reftextfaceafter
+     \let\reftextbefore    \reftextfacebefore
+     \def\reftextcurrent   {na ovoj stranici}%
+     \def\reftextfaraway#1{na stranici~\pageref{#1}}%
+     \def\reftextpagerange#1#2{na stranicama~\pageref{#1}--\pageref{#2}}%
+     \def\reftextlabelrange#1#2{\ref{#1} do~\ref{#2}}%
+   }}
+\DeclareOption{czech}
+  {%\vref@excuse{czech}%
+   \vref@addto\extrasczech{%
+    \def\reftextfaceafter {na n\'a\-sle\-du\-j\'\i c\'\i\ stran\v{e}}%
+    \def\reftextfacebefore{na p\v{r}ed\-choz\'\i\ stran\v{e}}%
+    \def\reftextafter     {na n\'a\-sle\-du\-j\'\i c\'\i\ stran\v{e}}%
+    \def\reftextbefore    {na p\v{r}ed\-choz\'\i\ stran\v{e}}%
+    \def\reftextcurrent   {na t\'eto stran\v{e}}%
+    \def\reftextfaraway#1{na stran\v{e}~\pageref{#1}}%
+    \def\reftextpagerange#1#2{na stran\'ach~\pageref{#1}\--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} a\v{z}~\ref{#2}}%
+  }}
+\DeclareOption{danish}
+  {\vref@addto\extrasdanish{%
+    \def\reftextfaceafter {p\aa{} \reftextvario{modst\aa ende}%
+                                               {n\ae ste} side}%
+    \def\reftextfacebefore{p\aa{} \reftextvario{modst\aa ende}%
+                                               {forrige} side}%
+    \def\reftextafter     {p\aa{} \reftextvario{den f\o lgende}%
+                                               {n\ae ste} side}%
+    \def\reftextbefore    {p\aa{} \reftextvario{forrige side}
+                                               {foreg\aa ende side}}%
+    \def\reftextcurrent   {p\aa{} denne side}%
+    \def\reftextfaraway#1{p\aa{} side~\pageref{#1}}%
+    \def\reftextpagerange#1#2{p\aa{} side~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} til~\ref{#2}}%
+  }}
+\DeclareOption{dutch}
+  {\vref@addto\extrasdutch{%
+    \def\refpagename{pagina}%
+    \def\reftextfaceafter {op de \reftextvario{rechter \refpagename}%
+                                          {\refpagename\ hiernaast}}%
+    \def\reftextfacebefore{op de \reftextvario{linker \refpagename}%
+                                         {\refpagename\ hiernaast}}%
+    \def\reftextafter     {op de \reftextvario{volgende \refpagename}%
+                                              {\refpagename\ hierna}}%
+    \def\reftextbefore    {op de \reftextvario{vorige \refpagename}%
+                                          {\refpagename\ hiervoor}}%
+    \def\reftextcurrent   {op deze \refpagename}%
+    \def\reftextfaraway#1{op \refpagename~\pageref{#1}}%
+    \def\reftextpagerange#1#2{op pagina's~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1}--\ref{#2}}%
+  }}
+\DeclareOption{english}
+  {\vref@addto\extrasenglish{%
+    \def\reftextfaceafter {on the \reftextvario{facing}{next} page}%
+    \def\reftextfacebefore{on the \reftextvario{facing}{preceding}
+                           page}%
+    \def\reftextafter     {on the \reftextvario{following}{next} page}%
+    \def\reftextbefore    {on the \reftextvario{preceding}{previous} page}%
+    \def\reftextcurrent   {on \reftextvario{this}{the current} page}%
+    \def\reftextfaraway#1{on page~\pageref{#1}}%
+    \def\reftextpagerange#1#2{on pages~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} to~\ref{#2}}%
+  }}
+\DeclareOption{esperanto}
+  {\vref@addto\extrasesperanto{%
+    \def\reftextfaceafter{en la
+        \reftextvario{flanka}{sekva} pa\^go}%
+    \def\reftextfacebefore{en la
+        \reftextvario{flanka}{anta\u ua} pa\^go}%
+    \def\reftextafter{en la sekva pa\^go}%
+    \def\reftextbefore{en la anta\u ua pa\^go}%
+    \def\reftextcurrent{\reftextvario{\^ci-pa\^ge}%
+        {en \^ci tiu pa\^go}}%
+    \def\reftextfaraway#1{en pa\^go~\pageref{#1}}%
+    \def\reftextpagerange#1#2{en pa\^goj~\pageref{#1} \^gis \pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} \^gis~\ref{#2}}%
+  }}
+\DeclareOption{finnish}
+  {\vref@addto\extrasfinnish{%
+    \def\reftextfaceafter {\reftextvario{viereisell\"a}%
+                                        {seuraavalla} sivulla}%
+    \def\reftextfacebefore{\reftextvario{viereisell\"a}%
+                                        {edellisell\"a} sivulla}%
+    \def\reftextafter     {seuraavalla sivulla}%
+    \def\reftextbefore    {edellisell\"a sivulla}%
+    \def\reftextcurrent   {t\"all\"a sivulla}%
+    \def\reftextfaraway#1{sivulla~\pageref{#1}}%
+     \def\reftextpagerange#1#2{sivuilla~\pageref{#1}--\pageref{#2}}%
+     \def\reftextlabelrange#1#2{\ref{#1}--\ref{#2}}%
+  }}
+\DeclareOption{french}
+  {\vref@addto\extrasfrench{%
+    \def\reftextfaceafter {page \reftextvario{ci-contre}{suivante}}%
+    \def\reftextfacebefore{page \reftextvario{ci-contre}%
+                          {pr\'ec\'edente}}%
+    \def\reftextafter     {page suivante}%
+    \def\reftextbefore    {page pr\'ec\'edente}%
+    \def\reftextcurrent   {de la pr\'esente page}%
+    \def\reftextfaraway#1{page~\pageref{#1}}%
+    \def\reftextpagerange#1#2{pages~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} \`a~\ref{#2}}%
+  }}
+\DeclareOption{galician}
+  {\vref@addto\extrasgalician{%
+    \def\reftextfaceafter {na p\'axina oposta}%
+    \def\reftextfacebefore\reftextfaceafter
+    \def\reftextafter     {na p\'axina seguinte}%
+    \def\reftextbefore    {na p\'axina anterior}%
+    \def\reftextcurrent   {nesta p\'axina}%
+    \def\reftextfaraway#1{na p\'axina~\pageref{#1}}%
+     \def\reftextpagerange#1#2{%
+                nas p\'axinas~\pageref{#1}-\pageref{#2}}%
+     \def\reftextlabelrange#1#2{\ref{#1} a~\ref{#2}}%
+  }}
+\DeclareOption{german}
+  {\vref@addto\extrasgerman{%
+    \def\reftextfaceafter {auf der n\"achsten Seite}%
+    \def\reftextfacebefore{auf der vorherigen Seite}%
+    \let\reftextafter     \reftextfaceafter
+    \let\reftextbefore    \reftextfacebefore
+    \def\reftextcurrent   {auf dieser Seite}%
+    \def\reftextfaraway#1{auf Seite~\pageref{#1}}%
+    \def\reftextpagerange#1#2{auf den Seiten~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} bis~\ref{#2}}%
+  }}
+\DeclareOption{ngerman}
+  {\vref@addto\extrasngerman{%
+    \def\reftextfaceafter {auf der n\"achsten Seite}%
+    \def\reftextfacebefore{auf der vorherigen Seite}%
+    \let\reftextafter     \reftextfaceafter
+    \let\reftextbefore    \reftextfacebefore
+    \def\reftextcurrent   {auf dieser Seite}%
+    \def\reftextfaraway#1{auf Seite~\pageref{#1}}%
+    \def\reftextpagerange#1#2{auf den Seiten~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} bis~\ref{#2}}%
+  }}
+\DeclareOption{greek}
+  {\vref@addto\extrasgreek{%
+    \def\reftextfaceafter {sthn \reftextvario{paro'usa}%
+                           {ep'omenh} sel'ida}%
+    \def\reftextfacebefore{sthn \reftextvario{paro'usa}{prohgo'umenh}
+                           sel'ida}%
+    \def\reftextafter     {sthn ep'omenh sel'ida}%
+    \def\reftextbefore    {sthn prohgo'umenh sel'ida}%
+    \def\reftextcurrent   {s'' aut'h th sel'ida}%
+    \def\reftextfaraway#1{sth sel'ida\nobreakspace\pageref{#1}}%
+    \def\reftextpagerange#1#2{stis sel'ides\nobreakspace
+                          \pageref{#1}---\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} ws\nobreakspace\ref{#2}}%
+  }}
+\DeclareOption{icelandic}
+  {\vref@addto\extrasicelandic{%
+    \def\reftextfaceafter {\'{a} \reftextvario{n{\ae}stu}%
+                                              {n{\ae}stu} s\'{i}{\dh}u}%
+    \def\reftextfacebefore{\'{a} \reftextvario{fyrri}%
+                                              {fyrri} s\'{i}{\dh}u}%
+    \def\reftextafter     {\'{a} \reftextvario{n{\ae}stu}%
+                                              {n{\ae}stu} s\'{i}{\dh}u}%
+    \def\reftextbefore    {\'{a} \reftextvario{fyrri}{fyrri} s\'{i}{\dh}u}%
+    \def\reftextcurrent   {\'{a} \reftextvario{{\th}essari}%
+                                              {{\th}essari} s\'{i}{\dh}u}%
+    \def\reftextfaraway#1{\'{a} s\'{i}{\dh}u~\pageref{#1}}%
+    \def\reftextpagerange#1#2{\'{a} s\'{i}{\dh}um~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} til~\ref{#2}}%
+  }}
+\DeclareOption{italian}
+  {\vref@addto\extrasitalian{%
+    \def\reftextfaceafter {\reftextvario{a fronte}%
+                           {nella pagina successiva}}%
+    \def\reftextfacebefore{\reftextvario{a fronte}%
+                           {nella pagina precedente}}%
+    \def\reftextafter     {nella pagina \reftextvario{seguente}%
+                           {successiva}}%
+    \def\reftextbefore    {nella pagina precedente}%
+    \def\reftextcurrent   {in questa pagina}%
+    \def\reftextfaraway#1{a pagina~\pageref{#1}}%
+    \def\reftextpagerange#1#2{nelle pagine~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{da~\ref{#1} a~\ref{#2}}%
+  }}
+\DeclareOption{magyar}
+  {\vref@addto\extrasmagyar{%
+    \def\reftextafter {a k\"o\-vet\-kez\H{o} ol\-da\-lon}%
+    \def\reftextbefore{az el\H{o}\-z\H{o} ol\-da\-lon}%
+    \def\reftextfaceafter {\reftextvario{a t\'ul\-ol\-da\-lon}%
+                          {a k\"o\-vet\-kez\H{o} ol\-da\-lon}}%
+    \def\reftextfacebefore{\reftextvario{a t\'ul\-ol\-da\-lon}%
+                          {az el\H{o}\-z\H{o} ol\-da\-lon}}%
+    \def\reftextcurrent   {ezen az ol\-da\-lon}%
+    \def\reftextfaraway#1{\aza{\pageref{#1}} \pageref{#1}.~ol\-da\-lon}%
+    \def\reftextpagerange#1#2{\vref@stringwarning\reftextpagerange
+                              on pages~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\vref@stringwarning\reflabelpagerange
+                               \ref{#1} to~\ref{#2}}%
+   }%
+   \AtBeginDocument{\providecommand\aza[1]{a/az%
+       \PackageError{varioref}{%
+         Proper definition for command \noexpand\aza missing}%
+        {You need to (re)define the command \noexpand\aza that
+         takes one argument (a number or a \noexpand\pageref command)
+         and produces the string `a' or `az' depending on the argument
+         value. It should also accept an optional argument (default `l')
+         to denote whether or not the string should be lowercase or
+         uppercase.}}}%
+  }
+\DeclareOption{norsk}
+  {\vref@addto\extrasnorsk{%
+    \def\reftextfaceafter {p\aa{} neste side}%
+    \def\reftextfacebefore{p\aa{} forrige side}%
+    \def\reftextafter     {p\aa{} neste side}%
+    \def\reftextbefore    {p\aa{} forrige side}%
+    \def\reftextcurrent   {p\aa{} denne siden}%
+    \def\reftextfaraway#1{p\aa{} side~\pageref{#1}}%
+    \def\reftextpagerange#1#2{p\aa{} side~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} til~\ref{#2}}%
+  }}
+\DeclareOption{nynorsk}
+  {\vref@addto\extrasnynorsk{%
+    \def\reftextfaceafter {p\aa{} neste side}%
+    \def\reftextfacebefore{p\aa{} f\o{}rre side}%
+    \def\reftextafter     {p\aa{} neste side}%
+    \def\reftextbefore    {p\aa{} f\o{}rre side}%
+    \def\reftextcurrent   {p\aa{} denne sida}%
+    \def\reftextfaraway#1{p\aa{} side~\pageref{#1}}%
+    \def\reftextpagerange#1#2{p\aa{} side~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} til~\ref{#2}}%
+  }}
+\DeclareOption{polish}
+  {\vref@addto\extraspolish{%
+    \def\reftextfaceafter {na \reftextvario{s\aob{}siedniej}%
+                                   {nast\eob{}pnej} stronie}%
+    \def\reftextfacebefore{na \reftextvario{s\aob{}siedniej}%
+                                   {poprzedniej} stronie}%
+    \def\reftextafter     {na nast\eob{}pnej stronie}%
+    \def\reftextbefore    {na poprzedniej stronie}%
+    \def\reftextcurrent   {na \reftextvario{tej
+                           samej}{bie\zkb{}\aob{}cej} stronie}%
+    \def\reftextfaraway#1{na stronie~\pageref{#1}}%
+    \def\reftextpagerange#1#2{na stronach~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{od~\ref{#1} do~\ref{#2}}%
+  }}
+\DeclareOption{portuges}
+  {\vref@addto\extrasportuges{%
+    \def\reftextfaceafter {na \reftextvario{p\'agina ao lado}{pr\'oxima
+                           p\'agina}}%
+    \def\reftextfacebefore{na p\'agina \reftextvario{ao lado}{anterior}}%
+    \def\reftextafter     {na \reftextvario{p\'agina seguinte}{pr\'oxima
+                           p\'agina}}%
+    \def\reftextbefore{na p\'agina \reftextvario{anterior}{precedente}}%
+    \def\reftextcurrent   {nesta p\'agina}%
+    \def\reftextfaraway#1{na p\'agina~\pageref{#1}}%
+     \def\reftextpagerange#1#2{nas p\'aginas~\pageref{#1}--\pageref{#2}}%
+     \def\reftextlabelrange#1#2{\ref{#1} a~\ref{#2}}%
+  }}
+\DeclareOption{romanian}
+  {\vref@addto\extrasromanian{%
+    \def\reftextfaceafter {pe pagina \reftextvario{opus\u{a}}{urm\u{a}toarei}}%
+    \def\reftextfacebefore{pe pagina \reftextvario{opus\u{a}}{precedentei}}%
+    \def\reftextafter     {\reftextvario{pe pagina urm\u{a}toare}%
+                                        {pe urm\u{a}toarea pagin\u{a}}}%
+    \def\reftextbefore    {pe pagina \reftextvario{precedent\u{a}}%
+                                                  {precedentei}}%
+    \def\reftextcurrent   {pe aceast\u{a} pagin\u{a}}%
+    \def\reftextfaraway#1{pe pagina~\pageref{#1}}%
+    \def\reftextpagerange#1#2{pe paginile~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} la~\ref{#2}}%
+  }}
+\DeclareOption{russian}
+  {\vref@addto\extrasrussian{%
+    \def\reftextfaceafter{\cyrn\cyra\ \reftextvario{\cyrp\cyrr\cyro
+      \cyrt\cyri\cyrv\cyro\cyrp\cyro\cyrl\cyro\cyrzh\cyrn\cyro\cyrishrt}%
+      {\cyrs\cyrl\cyre\cyrd\cyru\cyryu\cyrshch\cyre\cyrishrt}\ \cyrs\cyrt
+      \cyrr\cyra\cyrn\cyri\cyrc\cyre}%
+    \def\reftextfacebefore{\cyrn\cyra\ \reftextvario{\cyrp\cyrr\cyro
+      \cyrt\cyri\cyrv\cyro\cyrp\cyro\cyrl\cyro\cyrzh\cyrn\cyro\cyrishrt}%
+      {\cyrp\cyrr\cyre\cyrd\cyrery\cyrd\cyru\cyrshch\cyre\cyrishrt}\
+      \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyre}%
+    \def\reftextafter{\cyrn\cyra\ \cyrs\cyrl\cyre\cyrd\cyru\cyryu\cyrshch
+      \cyre\cyrishrt\ \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyre}%
+    \def\reftextbefore{\cyrn\cyra\ \reftextvario{\cyrp\cyrr\cyre\cyrd
+      \cyrsh\cyre\cyrs\cyrt\cyrv\cyru\cyryu\cyrshch\cyre\cyrishrt}%
+      {\cyrp\cyrr\cyre\cyrd\cyrery\cyrd\cyru\cyrshch\cyre\cyrishrt}%
+      \ \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyre}%
+    \def\reftextcurrent{\cyrn\cyra\ \reftextvario{\cyrerev\cyrt\cyro
+      \cyrishrt}{\cyrd\cyra\cyrn\cyrn\cyro\cyrishrt}\ \cyrs\cyrt\cyrr
+      \cyra\cyrn\cyri\cyrc\cyre}%
+    \def\reftextfaraway#1{\cyrn\cyra\ \cyrs.~\pageref{#1}}%
+    \def\reftextpagerange#1#2{\cyrn\cyra\ \cyrs\cyrt\cyrr\cyra\cyrn
+      \cyri\cyrc\cyra\cyrh~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\cyrs~\ref{#1}\ \cyrp\cyro~\ref{#2}}%
+  }}
+\DeclareOption{slovak}
+  {\vref@addto\extrasslovak{%
+    \def\reftextfaceafter {na \reftextvario{proti\v lahlej}%
+                          {nasleduj\'ucej} strane}%
+    \def\reftextfacebefore{na \reftextvario{proti\v lahlej}%
+                          {predch\'adzaj\'ucej} strane}%
+    \def\reftextafter     {na \reftextvario{nasleduj\'ucej}%
+                          {\v dal\v sej} strane}%
+    \def\reftextbefore    {na \reftextvario{predch\'adzaj\'ucej}%
+                          {predo\v slej} strane}%
+    \def\reftextcurrent   {na tejto strane}%
+    \def\reftextfaraway#1{na strane~\pageref{#1}}%
+    \def\reftextpagerange#1#2{na stran\'ach~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} a\v z~\ref{#2}}%
+  }}
+\DeclareOption{slovene}
+  {\vref@addto\extrasslovene{%
+    \def\reftextfaceafter {na naslednji strani}%
+    \def\reftextfacebefore{na prej\v{s}nji strani}%
+    \let\reftextafter     \reftextfaceafter
+    \let\reftextbefore    \reftextfacebefore
+    \def\reftextcurrent   {na \reftextvario{tej}{trenutni} strani}%
+    \def\reftextfaraway#1{na strani~\pageref{#1}}%
+    \def\reftextpagerange#1#2{na straneh~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{od~\ref{#1} do~\ref{#2}}%
+  }}
+\DeclareOption{spanish}
+  {\vref@addto\extrasspanish{%
+    \def\reftextfaceafter {en la p\'agina siguiente}%
+    \def\reftextfacebefore{en la p\'agina anterior}%
+    \let\reftextafter     \reftextfaceafter
+    \let\reftextbefore    \reftextfacebefore
+    \def\reftextcurrent   {en esta p\'agina}%
+    \def\reftextfaraway#1{en la p\'agina~\pageref{#1}}%
+    \def\reftextpagerange#1#2{en las p\'aginas~\pageref{#1}%
+                                             -\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} a~\ref{#2}}%
+  }}
+\DeclareOption{swedish}
+  {\vref@addto\extrasswedish{%
+     \def\reftextfaceafter {p\aa\ \reftextvario{motst\aa ende}%
+                                             {n\"{a}sta} sida}%
+     \def\reftextfacebefore{p\aa\ \reftextvario{motst\aa ende}%
+                                      {f\"{o}reg\aa ende} sida}%
+     \def\reftextafter     {p\aa\ \reftextvario{f\"{o}ljande}%
+                                            {n\"{a}sta} sida}%
+     \def\reftextbefore    {p\aa\ f\"{o}reg\aa ende sida}%
+     \def\reftextcurrent   {p\aa\ denna sida}%
+     \def\reftextfaraway#1{p\aa\ sidan~\pageref{#1}}%
+     \def\reftextpagerange#1#2{p\aa\
+                               sidorna~\pageref{#1}--\pageref{#2}}%
+     \def\reftextlabelrange#1#2{\ref{#1} till~\ref{#2}}%
+  }}
+\DeclareOption{turkish}
+  {\vref@excuse{turkish}%
+   \vref@addto\extrasturkish{%
+    \def\reftextfaceafter {on the \reftextvario{facing}{next} page}%
+    \def\reftextfacebefore{on the \reftextvario{facing}{preceding}
+                           page}%
+    \def\reftextafter     {on the \reftextvario{following}{next} page}%
+    \def\reftextbefore    {on the \reftextvario{preceding}{previous} page}%
+    \def\reftextcurrent   {on \reftextvario{this}{the current} page}%
+    \def\reftextfaraway#1{on page~\pageref{#1}}%
+    \def\reftextpagerange#1#2{on pages~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} to~\ref{#2}}%
+  }}
+\DeclareOption{ukrainian}
+   {\vref@addto\extrasukrainian{%
+     \def\reftextfaceafter{\cyrn\cyra\ \reftextvario{\cyrp\cyrr\cyro
+       \cyrt\cyri\cyrl\cyre\cyrzh\cyrn\cyrii\cyrishrt}%
+       {\cyrn\cyra\cyrs\cyrt\cyru\cyrp\cyrn\cyrii\cyrishrt}\ \cyrs\cyrt
+       \cyro\cyrr\cyri\cyrn\cyrc\cyrii}%
+     \def\reftextfacebefore{\cyrn\cyra\ \reftextvario{\cyrp\cyrr\cyro
+       \cyrt\cyri\cyrl\cyre\cyrzh\cyrn\cyrii\cyrishrt}%
+       {\cyrp\cyro\cyrp\cyre\cyrr\cyre\cyrd\cyrn\cyrii\cyrishrt}\
+       \cyrs\cyrt\cyro\cyrr\cyrii\cyrn\cyrc\cyrii}%
+     \def\reftextafter{\cyrn\cyra\ \cyrn\cyra\cyrs\cyrt\cyru\cyrp\cyrn
+       \cyrii\cyrishrt\ \cyrs\cyrt\cyro\cyrr\cyrii\cyrn\cyrc\cyrii}%
+     \def\reftextbefore{\cyrn\cyra\ \cyrp\cyro\cyrp\cyre\cyrr\cyre\cyrd
+       \cyrn\cyrii\cyrishrt\ \cyrs\cyrt\cyro\cyrr\cyrii\cyrn\cyrc\cyrii}%
+     \def\reftextcurrent{\cyrn\cyra\ \reftextvario{\cyrc\cyrii\cyrishrt}%
+       {\cyrd\cyra\cyrn\cyrii\cyrishrt}\ \cyrs\cyrt\cyro\cyrr\cyrii\cyrn
+       \cyrc\cyrii}%
+     \def\reftextfaraway#1{\cyrn\cyra\ \cyrs.~\pageref{#1}}%
+     \def\reftextpagerange#1#2{\cyrn\cyra\ \cyrs\cyrt\cyro\cyrr\cyrii
+       \cyrn\cyrk\cyra\cyrh~\pageref{#1}--\pageref{#2}}%
+     \def\reftextlabelrange#1#2{\cyrz~\ref{#1}\ \cyrd\cyro~\ref{#2}}%
+   }}
+\DeclareOption{francais}{%
+   \typeout{Please use `french' instead of `francais'}%
+   \ExecuteOptions{french}}
+\DeclareOption{germanb}{%
+   \typeout{Please use `german' instead of `germanb'}%
+   \ExecuteOptions{german}}
+\DeclareOption{draft}{\AtEndOfPackage\vrefwarning}
+\DeclareOption{final}{\AtEndOfPackage\vrefshowerrors} % the default
+\ExecuteOptions{english,final}
+\ProcessOptions*
+\newcounter{vrcnt}
+\DeclareRobustCommand\vpageref{\@ifstar
+     {\let\vref@space\relax\vp@geref}%
+     {\let\vref@space\space\vp@geref}}
+\def\vp@geref{\@ifnextchar[%
+  \@vpageref{\@vpageref[\reftextcurrent]}%
+}
+\let\vref@space\space
+\def\@vpageref[#1]{\@ifnextchar[%
+  {\@@vpageref{#1}}{\@@vpageref{#1}[\unskip\vref@space]}}
+\def\@@vpageref#1[#2]#3{%
+  \leavevmode\unskip
+  \global\advance\c@vrcnt\@ne
+  \vref@pagenum\@tempa{\the\c@vrcnt @vr}%
+  \vref@pagenum\@tempb{\the\c@vrcnt @xvr}%
+  \vref@label{\the\c@vrcnt @xvr}%
+  \ifx\@tempa\@tempb
+    \let\vref@may@loop\relax
+  \else
+    \edef\vref@may@loop{%
+      \noexpand\vref@err{\noexpand\vref or \noexpand\vpageref
+              at page boundary
+              \@tempb-\@tempa\space (may loop)%
+              }%
+      }%
+   \fi
+  \vrefpagenum\thevpagerefnum{#3}%
+  \vref@space
+  \ifx\@tempa\thevpagerefnum
+    \def\@tempc{#1}%
+    \ifx\@tempc\@empty
+       \unskip
+    \else
+       #1%
+    \fi
+  \else
+    #2%
+    \is@pos@number\thevpagerefnum
+       {%
+        \is@pos@number\@tempa
+         {\@tempcnta\@tempa
+          \advance\@tempcnta\@ne
+         }%
+         {\@tempcnta\maxdimen}%
+        \ifnum \thevpagerefnum =\@tempcnta
+         \ifodd\@tempcnta
+           \if@twoside
+             \reftextfaceafter
+           \else
+             \reftextafter
+           \fi
+         \else
+           \reftextafter
+         \fi
+        \else
+          \advance\@tempcnta-2
+          \ifnum \thevpagerefnum =\@tempcnta
+            \ifodd\@tempcnta
+              \reftextbefore
+            \else
+              \if@twoside
+                \reftextfacebefore
+              \else
+                \reftextbefore
+              \fi
+            \fi
+          \else
+          \let\vref@may@loop\relax % added
+          \reftextfaraway{#3}%
+          \fi
+        \fi
+       }%
+       {%
+         \let\vref@may@loop\relax %added
+         \reftextfaraway{#3}}%
+  \fi
+   \vref@label{\the\c@vrcnt @vr}%
+   \vref@may@loop
+}
+\def\vref@label#1{\@bsphack
+  \protected@write\@auxout{}%
+         {\string\newlabel{#1}{{}{\thepage}}}%
+  \@esphack}
+\let\thevpagerefnum\@empty
+\def\vrefwarning{\def\vref@err{\PackageWarning{varioref}}}
+\def\vrefshowerrors{\def\vref@err##1{\PackageError{varioref}{##1}%
+    {Please check the pages in question. You might need to replace
+     the \string\vref\MessageBreak
+     or \noexpand\vpageref by a normal \noexpand\(page)ref to
+     stop LaTeX running forever.}}}
+\DeclareRobustCommand\vref{\@ifstar
+   {\let\vref@space\relax\vr@f}%
+   {\let\vref@space\nobreakspace\vr@f}}
+\def\vr@f#1{%
+  \leavevmode\unskip\vref@space
+  \ref{#1}%
+  \vpageref[\unskip]{#1}}
+\def\is@pos@number#1{\is@pos@num0#1\space\@nil}
+\def\is@pos@num{\afterassignment\is@pos@num@ \count@}
+\def\is@pos@num@#1\@nil{%
+  \ifx\@nil#1\@nil
+    \expandafter\@firstoftwo \else
+    \expandafter\@secondoftwo  \fi}
+\def\reftextvario#1#2{\ifodd\c@vrcnt #1\else#2\fi}
+\def\fullref#1{\ref{#1} \reftextfaraway{#1}}
+\def\vref@pagenum#1#2{%
+  \@ifundefined{r@#2}{\@namedef{r@#2}{{??}{??}}}{}%
+  \expandafter\expandafter\expandafter\vref@@pagenum
+  \csname r@#2\endcsname{}{}\@nil#1%
+}
+\def\vref@@pagenum#1#2#3\@nil#4{%
+  \def#4{#2}%
+}
+\def\vrefpagenum#1#2{%
+  \@ifundefined{r@#2}%
+    {\G@refundefinedtrue
+     \@latex@warning{Reference `#2' on page \thepage \space
+             undefined}}{}%
+  \vref@pagenum{#1}{#2}}
+\newcommand\@svpagerefrange[3][\reftextcurrent]{%
+  \vrefpagenum\@tempa{#2}%
+  \vrefpagenum\@tempb{#3}%
+  \ifx\@tempa\@tempb
+    \vpageref*[{#1}]{#2}%
+  \else
+    \reftextpagerange{#2}{#3}%
+  \fi
+}
+\newcommand\@vpagerefrange[3][\reftextcurrent]{%
+  \vrefpagenum\@tempa{#2}%
+  \vrefpagenum\@tempb{#3}%
+  \ifx\@tempa\@tempb
+    \vpageref[{#1}]{#2}%
+  \else
+    \reftextpagerange{#2}{#3}%
+  \fi
+}
+\newcommand\vpagerefrange{\@ifstar\@svpagerefrange\@vpagerefrange}
+\newcommand\vrefrange[3][\reftextcurrent]
+  {\reftextlabelrange{#2}{#3} \vpagerefrange[{#1}]{#2}{#3}}
+\def\refstepcounter#1{\stepcounter{#1}%
+    \protected@edef\@currentlabel
+       {\csname p@#1\expandafter\endcsname\csname the#1\endcsname}%
+}
+\def\labelformat#1{\expandafter\def\csname p@#1\endcsname##1}
+\DeclareRobustCommand\Ref[1]{\protected@edef\@tempa{\ref{#1}}%
+   \expandafter\MakeUppercase\@tempa}
+\DeclareRobustCommand\Vref{\@ifstar
+   {\let\vref@space\relax\Vr@f}%
+   {\let\vref@space\nobreakspace\Vr@f}}
+\def\Vr@f#1{%
+  \leavevmode\unskip\vref@space
+  \Ref{#1}%
+  \vpageref[\unskip]{#1}}
+\endinput
+%%
+%% End of file `varioref.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/varioref.sty b/Master/texmf-dist/tex/latex-dev/tools/varioref.sty
new file mode 100644
index 00000000000..12b7d35cc33
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/varioref.sty
@@ -0,0 +1,873 @@
+%%
+%% This is file `varioref.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% varioref.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% Package varioref to use with LaTeX2e
+%% Copyright (C) 1992-2019  Frank Mittelbach, all rights reserved.
+%%
+%% For additions or updates to the language options please contact
+%% the author at
+%%
+%%   frank.mittelbach@latex-project.org
+%%
+%% or open an issue at https://github.com/latex3/latex2e.
+%%
+\NeedsTeXFormat{LaTeX2e}[1995/05/16]
+\providecommand\DeclareRelease[3]{}
+\providecommand\DeclareCurrentRelease[2]{}
+
+\DeclareRelease{}{2016-02-16}{varioref-2016-02-16.sty}
+\DeclareCurrentRelease{}{2019-10-01}
+
+\ProvidesPackage{varioref}
+    [2019/09/08 v1.6b package for extended references (FMi)]
+%%
+
+
+\def\vref@addto#1#2{%
+  #2%
+  \@temptokena{#2}%
+  \ifx#1\undefined
+     \edef#1{\the\@temptokena}%
+  \else
+     \toks@\expandafter{#1}%
+     \edef#1{\the\toks@\the\@temptokena}%
+  \fi
+  \@temptokena{}\toks@\@temptokena
+}
+\@onlypreamble\vref@addto
+\def\vref@excuse#1{%
+  \PackageWarningNoLine{varioref}{Sorry, language `#1'
+            not supported%
+            \MessageBreak
+            in this version.
+            English strings used by default.
+            \MessageBreak
+            Please modify \protect\reftext... commands manually.%
+            \MessageBreak\MessageBreak
+            If you can suggest translations for
+            this language,%
+            \MessageBreak
+            please mail them
+            to the author of this package}}
+\@onlypreamble\vref@excuse
+\def\vref@stringwarning#1{%
+  \PackageWarningNoLine{varioref}{Sorry, there is no proper
+            translation for the string\MessageBreak
+            produced by \protect#1\on@line.\MessageBreak
+            English string used instead.\MessageBreak
+            \MessageBreak
+            If you can suggest translations for
+            the current\MessageBreak
+            language, please mail them
+            to the author of this\MessageBreak package}}
+\DeclareOption{afrikaans}
+  {\vref@addto\extrasafrikaans{%
+    \def\reftextfaceafter {op die \reftextvario{regterbladsy}%
+                                               {bladsy langsaan}}%
+    \def\reftextfacebefore{op die \reftextvario{linkerbladsy}%
+                                                {bladsy langsaan}}%
+    \def\reftextafter     {op die \reftextvario{volgende bladsy}%
+                                               {bladsy hierna}}%
+    \def\reftextbefore    {op die \reftextvario{vorige bladsy}%
+                                               {bladsy hiervoor}}%
+    \def\reftextcurrent   {op \reftextvario{hierdie}%
+                                           {die huidige} bladsy}%
+    \def\reftextfaraway#1{op bladsy~\pageref{#1}}%
+    \def\reftextpagerange#1#2{op bladsye~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} tot~\ref{#2}}%
+  }}
+\DeclareOption{american}
+  {\vref@addto\extrasamerican{%
+    \def\reftextfaceafter {on the \reftextvario{facing}{next} page}%
+    \def\reftextfacebefore{on the \reftextvario{facing}{preceding}
+                           page}%
+    \def\reftextafter     {on the \reftextvario{following}{next} page}%
+    \def\reftextbefore    {on the \reftextvario{preceding}{previous} page}%
+    \def\reftextcurrent   {on \reftextvario{this}{the current} page}%
+    \def\reftextfaraway#1{on page~\pageref{#1}}%
+    \def\reftextpagerange#1#2{on pages~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} to~\ref{#2}}%
+  }}
+\DeclareOption{arabic}
+  {\vref@addto\extrasarabic{%
+    \def\reftextfaceafter {^^d8^^a8^^d8^^a7^^d9^^84^^d8^^b5^^d9^^81^^d8^^ad^^d8^^a9 \reftextvario{^^d8^^a7^^d9^^84^^d9^^85^^d9^^82^^d8^^a7^^d8^^a8^^d9^^84^^d8^^a9}{^^d8^^a7^^d9^^84^^d9^^84^^d8^^a7^^d8^^ad^^d9^^82^^d8^^a9}}%
+    \def\reftextfacebefore{^^d8^^a8^^d8^^a7^^d9^^84^^d8^^b5^^d9^^81^^d8^^ad^^d8^^a9 \reftextvario{^^d8^^a7^^d9^^84^^d9^^85^^d9^^82^^d8^^a7^^d8^^a8^^d9^^84^^d8^^a9}{^^d8^^a7^^d9^^84^^d9^^85^^d9^^8f^^d9^^86^^d9^^92^^d8^^b5^^d9^^8e^^d8^^b1^^d9^^90^^d9^^85^^d9^^8e^^d8^^a9^^d9^^8c}}%
+    \def\reftextafter     {^^d8^^a8^^d8^^a7^^d9^^84^^d8^^b5^^d9^^81^^d8^^ad^^d8^^a9 \reftextvario{^^d8^^a7^^d9^^84^^d9^^84^^d8^^a7^^d8^^ad^^d9^^82^^d8^^a9}{^^d8^^a7^^d9^^84^^d8^^aa^^d8^^a7^^d9^^84^^d9^^8a^^d8^^a9}}%
+    \def\reftextbefore    {^^d8^^a8^^d8^^a7^^d9^^84^^d8^^b5^^d9^^81^^d8^^ad^^d8^^a9 \reftextvario{^^d8^^a7^^d9^^84^^d8^^b3^^d8^^a7^^d8^^a8^^d9^^82^^d8^^a9}{^^d8^^a7^^d9^^84^^d9^^85^^d9^^8f^^d9^^86^^d9^^92^^d8^^b5^^d9^^8e^^d8^^b1^^d9^^90^^d9^^85^^d9^^8e^^d8^^a9^^d9^^8c}}%
+    \def\reftextcurrent   {^^d8^^a8\reftextvario{^^d8^^a7^^d9^^84^^d8^^b5^^d9^^81^^d8^^ad^^d8^^a9 ^^d8^^a7^^d9^^84^^d8^^ad^^d8^^a7^^d9^^84^^d9^^8a^^d8^^a9}{^^d9^^87^^d8^^b0^^d9^^87 ^^d8^^a7^^d9^^84^^d8^^b5^^d9^^81^^d8^^ad^^d8^^a9}}%
+    \def\reftextfaraway#1{^^d8^^a8^^d8^^a7^^d9^^84^^d8^^b5^^d9^^81^^d8^^ad^^d8^^a9 ^^d8^^b1^^d9^^82^^d9^^85~\pageref{#1}}%
+    \def\reftextpagerange#1#2{^^d8^^a8^^d8^^a7^^d9^^84^^d8^^b5^^d9^^81^^d8^^ad^^d8^^a7^^d8^^aa~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} ^^d8^^ad^^d8^^aa^^d9^^89~\ref{#2}}%
+  }}
+\DeclareOption{austrian}
+  {\vref@addto\extrasaustrian{%
+    \def\reftextfaceafter {auf der n\"achsten Seite}%
+    \def\reftextfacebefore{auf der vorherigen Seite}%
+    \let\reftextafter     \reftextfaceafter
+    \let\reftextbefore    \reftextfacebefore
+    \def\reftextcurrent   {auf dieser Seite}%
+    \def\reftextfaraway#1{auf Seite~\pageref{#1}}%
+    \def\reftextpagerange#1#2{auf Seiten~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} bis~\ref{#2}}%
+  }}
+\DeclareOption{naustrian}
+  {\vref@addto\extrasnaustrian{%
+    \def\reftextfaceafter {auf der n\"achsten Seite}%
+    \def\reftextfacebefore{auf der vorherigen Seite}%
+    \let\reftextafter     \reftextfaceafter
+    \let\reftextbefore    \reftextfacebefore
+    \def\reftextcurrent   {auf dieser Seite}%
+    \def\reftextfaraway#1{auf Seite~\pageref{#1}}%
+    \def\reftextpagerange#1#2{auf Seiten~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} bis~\ref{#2}}%
+  }}
+\DeclareOption{basque}
+  {\vref@addto\extrasbasque{%
+    \def\reftextfaceafter {hurrengo orrialdean}%
+    \def\reftextfacebefore{aurreko orrialdean}%
+    \let\reftextafter     \reftextfaceafter
+    \let\reftextbefore    \reftextfacebefore
+    \def\reftextcurrent   {uneko orrialdean}%
+    \def\reftextfaraway#1{~\pageref{#1}. orrialdean}%
+    \def\reftextpagerange#1#2{~\pageref{#1}--\pageref{#2} orrialdeetan}%
+    \def\reftextlabelrange#1#2{\ref{#1}.etik \ref{#2}.eraino}%
+  }}
+\DeclareOption{bahasam}
+  {\vref@addto\extrasbahasam{%
+    \def\reftextfaceafter {pada muka surat \reftextvario{bertentangan}{berikutnya}}%
+    \def\reftextfacebefore{pada muka surat \reftextvario{bertentangan}{sebelumnya} }%
+    \def\reftextafter     {pada muka surat berikutnya}%
+    \def\reftextbefore    {pada muka surat sebelumnya}%
+    \def\reftextcurrent   {pada muka surat ini}%
+    \def\reftextfaraway#1{pada muka surat~\pageref{#1}}%
+    \def\reftextpagerange#1#2{pada muka surat~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1}--\ref{#2}}%
+  }}
+\DeclareOption{brazil}
+  {\vref@addto\extrasbrazil{%
+    \def\reftextfaceafter {na \reftextvario{p\'agina oposta}{pr\'oxima
+                           p\'agina}}%
+    \def\reftextfacebefore{na p\'agina \reftextvario{oposta}{anterior}}%
+    \def\reftextafter     {na \reftextvario{p\'agina seguinte}{pr\'oxima
+                           p\'agina}}%
+    \def\reftextbefore{na p\'agina \reftextvario{anterior}{precedente}}%
+    \def\reftextcurrent   {\reftextvario{nesta p\'agina}{na p\'agina
+                           corrente}}%
+    \def\reftextfaraway#1{na p\'agina~\pageref{#1}}%
+    \def\reftextpagerange#1#2{nas p\'aginas~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} a~\ref{#2}}%
+  }}
+\DeclareOption{breton}
+  {\vref@excuse{breton}%
+   \vref@addto\extrasbreton{%
+    \def\reftextfaceafter {war ar bajenn \reftextvario{a-dal}{da heul}}%
+    \def\reftextfacebefore{war ar bajenn \reftextvario{a-dal}{a-raok}}%
+    \def\reftextafter     {war ar bajenn da heul}%
+    \def\reftextbefore    {war ar bajenn a-raok}%
+    \def\reftextcurrent   {war ar \reftextvario{bajenn-ma\~n}%
+                                               {bajenn war-wel}}%
+    \def\reftextfaraway#1{war ar bajenn~\pageref{#1}}%
+    \def\reftextpagerange#1#2{\vref@stringwarning\reftextpagerange
+                              on pages~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\vref@stringwarning\reflabelpagerange
+                               \ref{#1} to~\ref{#2}}%
+  }}
+\DeclareOption{bulgarian}%
+ {\vref@addto\extrasbulgarian{%
+   \def\reftextfaceafter{\cyrn\cyra\
+         \reftextvario{\cyrs\cyrery\cyrs\cyre\cyrd\cyrn\cyra\cyrt\cyra}%
+                      {\cyrs\cyrl\cyre\cyrd\cyrv\cyra\cyrshch\cyra\cyrt\cyra}
+         \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyra}%
+   \def\reftextfacebefore{\cyrn\cyra\
+         \reftextvario{\cyrs\cyrery\cyrs\cyre\cyrd\cyrn\cyra\cyrt\cyra}%
+                      {\cyrp\cyrr\cyre\cyrd\cyrn\cyra\cyrt\cyra}
+         \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyra}%
+   \def\reftextafter{\cyrn\cyra\
+         \reftextvario{\cyrs\cyrl\cyre\cyrd\cyrv\cyra\cyrshch\cyra\cyrt\cyra}%
+                      {\cyrs\cyrl\cyre\cyrd\cyrv\cyra\cyrshch\cyra\cyrt\cyra}
+         \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyra}%
+   \def\reftextbefore{\cyrn\cyra\
+         \reftextvario{\cyrp\cyrr\cyre\cyrd\cyrn\cyra\cyrt\cyra}%
+                      {\cyrp\cyrr\cyre\cyrd\cyri\cyrsh\cyrn\cyra\cyrt\cyra}
+         \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyra}%
+   \def\reftextcurrent{\cyrn\cyra\
+         \reftextvario{\cyrt\cyra\cyrz\cyri}%
+                      {\cyrt\cyre\cyrk\cyru\cyrshch\cyra\cyrt\cyra}
+         \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyra}%
+   \def\reftextfaraway#1{\cyrn\cyra\ \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyra
+                         ~\pageref{#1}}%
+   \def\reftextpagerange#1#2{\cyrn\cyra\
+                        \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyri
+                        ~\pageref{#1}--\pageref{#2}}%
+   \def\reftextlabelrange#1#2{\ref{#1} \cyrd\cyro~\ref{#2}}%
+ }}
+\DeclareOption{catalan}
+  {\vref@addto\extrascatalan{%
+    \def\reftextfaceafter {a la p\`agina seg\"uent}%
+    \def\reftextfacebefore{a la p\`agina anterior}%
+    \let\reftextafter     \reftextfaceafter
+    \let\reftextbefore    \reftextfacebefore
+    \def\reftextcurrent   {en aquesta p\`agina}%
+    \def\reftextfaraway#1{a la p\`agina~\pageref{#1}}%
+    \def\reftextpagerange#1#2{a les
+                     p\`agines~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} a~\ref{#2}}%
+  }}
+\DeclareOption{croatian}
+   {\vref@addto\extrascroatian{%
+     \def\reftextfaceafter {na sljede\'coj stranici}%
+     \def\reftextfacebefore{na prethodnoj stranici}%
+     \let\reftextafter     \reftextfaceafter
+     \let\reftextbefore    \reftextfacebefore
+     \def\reftextcurrent   {na ovoj stranici}%
+     \def\reftextfaraway#1{na stranici~\pageref{#1}}%
+     \def\reftextpagerange#1#2{na stranicama~\pageref{#1}--\pageref{#2}}%
+     \def\reftextlabelrange#1#2{\ref{#1} do~\ref{#2}}%
+   }}
+\DeclareOption{czech}
+  {%\vref@excuse{czech}%
+   \vref@addto\extrasczech{%
+    \def\reftextfaceafter {na n\'a\-sle\-du\-j\'\i c\'\i\ stran\v{e}}%
+    \def\reftextfacebefore{na p\v{r}ed\-choz\'\i\ stran\v{e}}%
+    \def\reftextafter     {na n\'a\-sle\-du\-j\'\i c\'\i\ stran\v{e}}%
+    \def\reftextbefore    {na p\v{r}ed\-choz\'\i\ stran\v{e}}%
+    \def\reftextcurrent   {na t\'eto stran\v{e}}%
+    \def\reftextfaraway#1{na stran\v{e}~\pageref{#1}}%
+    \def\reftextpagerange#1#2{na stran\'ach~\pageref{#1}\--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} a\v{z}~\ref{#2}}%
+  }}
+\DeclareOption{danish}
+  {\vref@addto\extrasdanish{%
+    \def\reftextfaceafter {p\aa{} \reftextvario{modst\aa ende}%
+                                               {n\ae ste} side}%
+    \def\reftextfacebefore{p\aa{} \reftextvario{modst\aa ende}%
+                                               {forrige} side}%
+    \def\reftextafter     {p\aa{} \reftextvario{den f\o lgende}%
+                                               {n\ae ste} side}%
+    \def\reftextbefore    {p\aa{} \reftextvario{forrige side}
+                                               {foreg\aa ende side}}%
+    \def\reftextcurrent   {p\aa{} denne side}%
+    \def\reftextfaraway#1{p\aa{} side~\pageref{#1}}%
+    \def\reftextpagerange#1#2{p\aa{} side~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} til~\ref{#2}}%
+  }}
+\DeclareOption{dutch}
+  {\vref@addto\extrasdutch{%
+    \def\refpagename{pagina}%
+    \def\reftextfaceafter {op de \reftextvario{rechter \refpagename}%
+                                          {\refpagename\ hiernaast}}%
+    \def\reftextfacebefore{op de \reftextvario{linker \refpagename}%
+                                         {\refpagename\ hiernaast}}%
+    \def\reftextafter     {op de \reftextvario{volgende \refpagename}%
+                                              {\refpagename\ hierna}}%
+    \def\reftextbefore    {op de \reftextvario{vorige \refpagename}%
+                                          {\refpagename\ hiervoor}}%
+    \def\reftextcurrent   {op deze \refpagename}%
+    \def\reftextfaraway#1{op \refpagename~\pageref{#1}}%
+    \def\reftextpagerange#1#2{op pagina's~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1}--\ref{#2}}%
+  }}
+\DeclareOption{english}
+  {\vref@addto\extrasenglish{%
+    \def\reftextfaceafter {on the \reftextvario{facing}{next} page}%
+    \def\reftextfacebefore{on the \reftextvario{facing}{preceding}
+                           page}%
+    \def\reftextafter     {on the \reftextvario{following}{next} page}%
+    \def\reftextbefore    {on the \reftextvario{preceding}{previous} page}%
+    \def\reftextcurrent   {on \reftextvario{this}{the current} page}%
+    \def\reftextfaraway#1{on page~\pageref{#1}}%
+    \def\reftextpagerange#1#2{on pages~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} to~\ref{#2}}%
+  }}
+\DeclareOption{esperanto}
+  {\vref@addto\extrasesperanto{%
+    \def\reftextfaceafter{en la
+        \reftextvario{flanka}{sekva} pa\^go}%
+    \def\reftextfacebefore{en la
+        \reftextvario{flanka}{anta\u ua} pa\^go}%
+    \def\reftextafter{en la sekva pa\^go}%
+    \def\reftextbefore{en la anta\u ua pa\^go}%
+    \def\reftextcurrent{\reftextvario{\^ci-pa\^ge}%
+        {en \^ci tiu pa\^go}}%
+    \def\reftextfaraway#1{en pa\^go~\pageref{#1}}%
+    \def\reftextpagerange#1#2{en pa\^goj~\pageref{#1} \^gis \pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} \^gis~\ref{#2}}%
+  }}
+\DeclareOption{finnish}
+  {\vref@addto\extrasfinnish{%
+    \def\reftextfaceafter {\reftextvario{viereisell\"a}%
+                                        {seuraavalla} sivulla}%
+    \def\reftextfacebefore{\reftextvario{viereisell\"a}%
+                                        {edellisell\"a} sivulla}%
+    \def\reftextafter     {seuraavalla sivulla}%
+    \def\reftextbefore    {edellisell\"a sivulla}%
+    \def\reftextcurrent   {t\"all\"a sivulla}%
+    \def\reftextfaraway#1{sivulla~\pageref{#1}}%
+     \def\reftextpagerange#1#2{sivuilla~\pageref{#1}--\pageref{#2}}%
+     \def\reftextlabelrange#1#2{\ref{#1}--\ref{#2}}%
+  }}
+\DeclareOption{french}
+  {\vref@addto\extrasfrench{%
+    \def\reftextfaceafter {page \reftextvario{ci-contre}{suivante}}%
+    \def\reftextfacebefore{page \reftextvario{ci-contre}%
+                          {pr\'ec\'edente}}%
+    \def\reftextafter     {page suivante}%
+    \def\reftextbefore    {page pr\'ec\'edente}%
+    \def\reftextcurrent   {de la pr\'esente page}%
+    \def\reftextfaraway#1{page~\pageref{#1}}%
+    \def\reftextpagerange#1#2{pages~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} \`a~\ref{#2}}%
+  }}
+\DeclareOption{galician}
+  {\vref@addto\extrasgalician{%
+    \def\reftextfaceafter {na p\'axina oposta}%
+    \def\reftextfacebefore\reftextfaceafter
+    \def\reftextafter     {na p\'axina seguinte}%
+    \def\reftextbefore    {na p\'axina anterior}%
+    \def\reftextcurrent   {nesta p\'axina}%
+    \def\reftextfaraway#1{na p\'axina~\pageref{#1}}%
+     \def\reftextpagerange#1#2{%
+                nas p\'axinas~\pageref{#1}-\pageref{#2}}%
+     \def\reftextlabelrange#1#2{\ref{#1} a~\ref{#2}}%
+  }}
+\DeclareOption{german}
+  {\vref@addto\extrasgerman{%
+    \def\reftextfaceafter {auf der n\"achsten Seite}%
+    \def\reftextfacebefore{auf der vorherigen Seite}%
+    \let\reftextafter     \reftextfaceafter
+    \let\reftextbefore    \reftextfacebefore
+    \def\reftextcurrent   {auf dieser Seite}%
+    \def\reftextfaraway#1{auf Seite~\pageref{#1}}%
+    \def\reftextpagerange#1#2{auf den Seiten~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} bis~\ref{#2}}%
+  }}
+\DeclareOption{ngerman}
+  {\vref@addto\extrasngerman{%
+    \def\reftextfaceafter {auf der n\"achsten Seite}%
+    \def\reftextfacebefore{auf der vorherigen Seite}%
+    \let\reftextafter     \reftextfaceafter
+    \let\reftextbefore    \reftextfacebefore
+    \def\reftextcurrent   {auf dieser Seite}%
+    \def\reftextfaraway#1{auf Seite~\pageref{#1}}%
+    \def\reftextpagerange#1#2{auf den Seiten~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} bis~\ref{#2}}%
+  }}
+\DeclareOption{greek}
+  {\vref@addto\extrasgreek{%
+    \def\reftextfaceafter {sthn \reftextvario{paro'usa}%
+                           {ep'omenh} sel'ida}%
+    \def\reftextfacebefore{sthn \reftextvario{paro'usa}{prohgo'umenh}
+                           sel'ida}%
+    \def\reftextafter     {sthn ep'omenh sel'ida}%
+    \def\reftextbefore    {sthn prohgo'umenh sel'ida}%
+    \def\reftextcurrent   {s'' aut'h th sel'ida}%
+    \def\reftextfaraway#1{sth sel'ida\nobreakspace\pageref{#1}}%
+    \def\reftextpagerange#1#2{stis sel'ides\nobreakspace
+                          \pageref{#1}---\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} ws\nobreakspace\ref{#2}}%
+  }}
+\DeclareOption{icelandic}
+  {\vref@addto\extrasicelandic{%
+    \def\reftextfaceafter {\'{a} \reftextvario{n{\ae}stu}%
+                                              {n{\ae}stu} s\'{i}{\dh}u}%
+    \def\reftextfacebefore{\'{a} \reftextvario{fyrri}%
+                                              {fyrri} s\'{i}{\dh}u}%
+    \def\reftextafter     {\'{a} \reftextvario{n{\ae}stu}%
+                                              {n{\ae}stu} s\'{i}{\dh}u}%
+    \def\reftextbefore    {\'{a} \reftextvario{fyrri}{fyrri} s\'{i}{\dh}u}%
+    \def\reftextcurrent   {\'{a} \reftextvario{{\th}essari}%
+                                              {{\th}essari} s\'{i}{\dh}u}%
+    \def\reftextfaraway#1{\'{a} s\'{i}{\dh}u~\pageref{#1}}%
+    \def\reftextpagerange#1#2{\'{a} s\'{i}{\dh}um~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} til~\ref{#2}}%
+  }}
+\DeclareOption{italian}
+  {\vref@addto\extrasitalian{%
+    \def\reftextfaceafter {\reftextvario{a fronte}%
+                           {nella pagina successiva}}%
+    \def\reftextfacebefore{\reftextvario{a fronte}%
+                           {nella pagina precedente}}%
+    \def\reftextafter     {nella pagina \reftextvario{seguente}%
+                           {successiva}}%
+    \def\reftextbefore    {nella pagina precedente}%
+    \def\reftextcurrent   {in questa pagina}%
+    \def\reftextfaraway#1{a pagina~\pageref{#1}}%
+    \def\reftextpagerange#1#2{nelle pagine~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{da~\ref{#1} a~\ref{#2}}%
+  }}
+\DeclareOption{magyar}
+  {\vref@addto\extrasmagyar{%
+    \def\reftextafter {a k\"o\-vet\-kez\H{o} ol\-da\-lon}%
+    \def\reftextbefore{az el\H{o}\-z\H{o} ol\-da\-lon}%
+    \def\reftextfaceafter {\reftextvario{a t\'ul\-ol\-da\-lon}%
+                          {a k\"o\-vet\-kez\H{o} ol\-da\-lon}}%
+    \def\reftextfacebefore{\reftextvario{a t\'ul\-ol\-da\-lon}%
+                          {az el\H{o}\-z\H{o} ol\-da\-lon}}%
+    \def\reftextcurrent   {ezen az ol\-da\-lon}%
+    \def\reftextfaraway#1{\aza{\pageref{#1}} \pageref{#1}.~ol\-da\-lon}%
+    \def\reftextpagerange#1#2{\vref@stringwarning\reftextpagerange
+                              on pages~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\vref@stringwarning\reflabelpagerange
+                               \ref{#1} to~\ref{#2}}%
+   }%
+   \AtBeginDocument{\providecommand\aza[1]{a/az%
+       \PackageError{varioref}{%
+         Proper definition for command \noexpand\aza missing}%
+        {You need to (re)define the command \noexpand\aza that
+         takes one argument (a number or a \noexpand\pageref command)
+         and produces the string `a' or `az' depending on the argument
+         value. It should also accept an optional argument (default `l')
+         to denote whether or not the string should be lowercase or
+         uppercase.}}}%
+  }
+\DeclareOption{norsk}
+  {\vref@addto\extrasnorsk{%
+    \def\reftextfaceafter {p\aa{} neste side}%
+    \def\reftextfacebefore{p\aa{} forrige side}%
+    \def\reftextafter     {p\aa{} neste side}%
+    \def\reftextbefore    {p\aa{} forrige side}%
+    \def\reftextcurrent   {p\aa{} denne siden}%
+    \def\reftextfaraway#1{p\aa{} side~\pageref{#1}}%
+    \def\reftextpagerange#1#2{p\aa{} side~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} til~\ref{#2}}%
+  }}
+\DeclareOption{nynorsk}
+  {\vref@addto\extrasnynorsk{%
+    \def\reftextfaceafter {p\aa{} neste side}%
+    \def\reftextfacebefore{p\aa{} f\o{}rre side}%
+    \def\reftextafter     {p\aa{} neste side}%
+    \def\reftextbefore    {p\aa{} f\o{}rre side}%
+    \def\reftextcurrent   {p\aa{} denne sida}%
+    \def\reftextfaraway#1{p\aa{} side~\pageref{#1}}%
+    \def\reftextpagerange#1#2{p\aa{} side~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} til~\ref{#2}}%
+  }}
+\DeclareOption{polish}
+  {\vref@addto\extraspolish{%
+    \def\reftextfaceafter {na \reftextvario{s\aob{}siedniej}%
+                                   {nast\eob{}pnej} stronie}%
+    \def\reftextfacebefore{na \reftextvario{s\aob{}siedniej}%
+                                   {poprzedniej} stronie}%
+    \def\reftextafter     {na nast\eob{}pnej stronie}%
+    \def\reftextbefore    {na poprzedniej stronie}%
+    \def\reftextcurrent   {na \reftextvario{tej
+                           samej}{bie\zkb{}\aob{}cej} stronie}%
+    \def\reftextfaraway#1{na stronie~\pageref{#1}}%
+    \def\reftextpagerange#1#2{na stronach~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{od~\ref{#1} do~\ref{#2}}%
+  }}
+\DeclareOption{portuges}
+  {\vref@addto\extrasportuges{%
+    \def\reftextfaceafter {na \reftextvario{p\'agina ao lado}{pr\'oxima
+                           p\'agina}}%
+    \def\reftextfacebefore{na p\'agina \reftextvario{ao lado}{anterior}}%
+    \def\reftextafter     {na \reftextvario{p\'agina seguinte}{pr\'oxima
+                           p\'agina}}%
+    \def\reftextbefore{na p\'agina \reftextvario{anterior}{precedente}}%
+    \def\reftextcurrent   {nesta p\'agina}%
+    \def\reftextfaraway#1{na p\'agina~\pageref{#1}}%
+     \def\reftextpagerange#1#2{nas p\'aginas~\pageref{#1}--\pageref{#2}}%
+     \def\reftextlabelrange#1#2{\ref{#1} a~\ref{#2}}%
+  }}
+\DeclareOption{romanian}
+  {\vref@addto\extrasromanian{%
+    \def\reftextfaceafter {pe pagina \reftextvario{opus\u{a}}{urm\u{a}toarei}}%
+    \def\reftextfacebefore{pe pagina \reftextvario{opus\u{a}}{precedentei}}%
+    \def\reftextafter     {\reftextvario{pe pagina urm\u{a}toare}%
+                                        {pe urm\u{a}toarea pagin\u{a}}}%
+    \def\reftextbefore    {pe pagina \reftextvario{precedent\u{a}}%
+                                                  {precedentei}}%
+    \def\reftextcurrent   {pe aceast\u{a} pagin\u{a}}%
+    \def\reftextfaraway#1{pe pagina~\pageref{#1}}%
+    \def\reftextpagerange#1#2{pe paginile~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} la~\ref{#2}}%
+  }}
+\DeclareOption{russian}
+  {\vref@addto\extrasrussian{%
+    \def\reftextfaceafter{\cyrn\cyra\ \reftextvario{\cyrp\cyrr\cyro
+      \cyrt\cyri\cyrv\cyro\cyrp\cyro\cyrl\cyro\cyrzh\cyrn\cyro\cyrishrt}%
+      {\cyrs\cyrl\cyre\cyrd\cyru\cyryu\cyrshch\cyre\cyrishrt}\ \cyrs\cyrt
+      \cyrr\cyra\cyrn\cyri\cyrc\cyre}%
+    \def\reftextfacebefore{\cyrn\cyra\ \reftextvario{\cyrp\cyrr\cyro
+      \cyrt\cyri\cyrv\cyro\cyrp\cyro\cyrl\cyro\cyrzh\cyrn\cyro\cyrishrt}%
+      {\cyrp\cyrr\cyre\cyrd\cyrery\cyrd\cyru\cyrshch\cyre\cyrishrt}\
+      \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyre}%
+    \def\reftextafter{\cyrn\cyra\ \cyrs\cyrl\cyre\cyrd\cyru\cyryu\cyrshch
+      \cyre\cyrishrt\ \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyre}%
+    \def\reftextbefore{\cyrn\cyra\ \reftextvario{\cyrp\cyrr\cyre\cyrd
+      \cyrsh\cyre\cyrs\cyrt\cyrv\cyru\cyryu\cyrshch\cyre\cyrishrt}%
+      {\cyrp\cyrr\cyre\cyrd\cyrery\cyrd\cyru\cyrshch\cyre\cyrishrt}%
+      \ \cyrs\cyrt\cyrr\cyra\cyrn\cyri\cyrc\cyre}%
+    \def\reftextcurrent{\cyrn\cyra\ \reftextvario{\cyrerev\cyrt\cyro
+      \cyrishrt}{\cyrd\cyra\cyrn\cyrn\cyro\cyrishrt}\ \cyrs\cyrt\cyrr
+      \cyra\cyrn\cyri\cyrc\cyre}%
+    \def\reftextfaraway#1{\cyrn\cyra\ \cyrs.~\pageref{#1}}%
+    \def\reftextpagerange#1#2{\cyrn\cyra\ \cyrs\cyrt\cyrr\cyra\cyrn
+      \cyri\cyrc\cyra\cyrh~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\cyrs~\ref{#1}\ \cyrp\cyro~\ref{#2}}%
+  }}
+\DeclareOption{slovak}
+  {\vref@addto\extrasslovak{%
+    \def\reftextfaceafter {na \reftextvario{proti\v lahlej}%
+                          {nasleduj\'ucej} strane}%
+    \def\reftextfacebefore{na \reftextvario{proti\v lahlej}%
+                          {predch\'adzaj\'ucej} strane}%
+    \def\reftextafter     {na \reftextvario{nasleduj\'ucej}%
+                          {\v dal\v sej} strane}%
+    \def\reftextbefore    {na \reftextvario{predch\'adzaj\'ucej}%
+                          {predo\v slej} strane}%
+    \def\reftextcurrent   {na tejto strane}%
+    \def\reftextfaraway#1{na strane~\pageref{#1}}%
+    \def\reftextpagerange#1#2{na stran\'ach~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} a\v z~\ref{#2}}%
+  }}
+\DeclareOption{slovene}
+  {\vref@addto\extrasslovene{%
+    \def\reftextfaceafter {na naslednji strani}%
+    \def\reftextfacebefore{na prej\v{s}nji strani}%
+    \let\reftextafter     \reftextfaceafter
+    \let\reftextbefore    \reftextfacebefore
+    \def\reftextcurrent   {na \reftextvario{tej}{trenutni} strani}%
+    \def\reftextfaraway#1{na strani~\pageref{#1}}%
+    \def\reftextpagerange#1#2{na straneh~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{od~\ref{#1} do~\ref{#2}}%
+  }}
+\DeclareOption{spanish}
+  {\vref@addto\extrasspanish{%
+    \def\reftextfaceafter {en la p\'agina siguiente}%
+    \def\reftextfacebefore{en la p\'agina anterior}%
+    \let\reftextafter     \reftextfaceafter
+    \let\reftextbefore    \reftextfacebefore
+    \def\reftextcurrent   {en esta p\'agina}%
+    \def\reftextfaraway#1{en la p\'agina~\pageref{#1}}%
+    \def\reftextpagerange#1#2{en las p\'aginas~\pageref{#1}%
+                                             -\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} a~\ref{#2}}%
+  }}
+\DeclareOption{swedish}
+  {\vref@addto\extrasswedish{%
+     \def\reftextfaceafter {p\aa\ \reftextvario{motst\aa ende}%
+                                             {n\"{a}sta} sida}%
+     \def\reftextfacebefore{p\aa\ \reftextvario{motst\aa ende}%
+                                      {f\"{o}reg\aa ende} sida}%
+     \def\reftextafter     {p\aa\ \reftextvario{f\"{o}ljande}%
+                                            {n\"{a}sta} sida}%
+     \def\reftextbefore    {p\aa\ f\"{o}reg\aa ende sida}%
+     \def\reftextcurrent   {p\aa\ denna sida}%
+     \def\reftextfaraway#1{p\aa\ sidan~\pageref{#1}}%
+     \def\reftextpagerange#1#2{p\aa\
+                               sidorna~\pageref{#1}--\pageref{#2}}%
+     \def\reftextlabelrange#1#2{\ref{#1} till~\ref{#2}}%
+  }}
+\DeclareOption{turkish}
+  {\vref@excuse{turkish}%
+   \vref@addto\extrasturkish{%
+    \def\reftextfaceafter {on the \reftextvario{facing}{next} page}%
+    \def\reftextfacebefore{on the \reftextvario{facing}{preceding}
+                           page}%
+    \def\reftextafter     {on the \reftextvario{following}{next} page}%
+    \def\reftextbefore    {on the \reftextvario{preceding}{previous} page}%
+    \def\reftextcurrent   {on \reftextvario{this}{the current} page}%
+    \def\reftextfaraway#1{on page~\pageref{#1}}%
+    \def\reftextpagerange#1#2{on pages~\pageref{#1}--\pageref{#2}}%
+    \def\reftextlabelrange#1#2{\ref{#1} to~\ref{#2}}%
+  }}
+\DeclareOption{ukrainian}
+   {\vref@addto\extrasukrainian{%
+     \def\reftextfaceafter{\cyrn\cyra\ \reftextvario{\cyrp\cyrr\cyro
+       \cyrt\cyri\cyrl\cyre\cyrzh\cyrn\cyrii\cyrishrt}%
+       {\cyrn\cyra\cyrs\cyrt\cyru\cyrp\cyrn\cyrii\cyrishrt}\ \cyrs\cyrt
+       \cyro\cyrr\cyri\cyrn\cyrc\cyrii}%
+     \def\reftextfacebefore{\cyrn\cyra\ \reftextvario{\cyrp\cyrr\cyro
+       \cyrt\cyri\cyrl\cyre\cyrzh\cyrn\cyrii\cyrishrt}%
+       {\cyrp\cyro\cyrp\cyre\cyrr\cyre\cyrd\cyrn\cyrii\cyrishrt}\
+       \cyrs\cyrt\cyro\cyrr\cyrii\cyrn\cyrc\cyrii}%
+     \def\reftextafter{\cyrn\cyra\ \cyrn\cyra\cyrs\cyrt\cyru\cyrp\cyrn
+       \cyrii\cyrishrt\ \cyrs\cyrt\cyro\cyrr\cyrii\cyrn\cyrc\cyrii}%
+     \def\reftextbefore{\cyrn\cyra\ \cyrp\cyro\cyrp\cyre\cyrr\cyre\cyrd
+       \cyrn\cyrii\cyrishrt\ \cyrs\cyrt\cyro\cyrr\cyrii\cyrn\cyrc\cyrii}%
+     \def\reftextcurrent{\cyrn\cyra\ \reftextvario{\cyrc\cyrii\cyrishrt}%
+       {\cyrd\cyra\cyrn\cyrii\cyrishrt}\ \cyrs\cyrt\cyro\cyrr\cyrii\cyrn
+       \cyrc\cyrii}%
+     \def\reftextfaraway#1{\cyrn\cyra\ \cyrs.~\pageref{#1}}%
+     \def\reftextpagerange#1#2{\cyrn\cyra\ \cyrs\cyrt\cyro\cyrr\cyrii
+       \cyrn\cyrk\cyra\cyrh~\pageref{#1}--\pageref{#2}}%
+     \def\reftextlabelrange#1#2{\cyrz~\ref{#1}\ \cyrd\cyro~\ref{#2}}%
+   }}
+\DeclareOption{francais}{%
+   \typeout{Please use `french' instead of `francais'}%
+   \ExecuteOptions{french}}
+\DeclareOption{germanb}{%
+   \typeout{Please use `german' instead of `germanb'}%
+   \ExecuteOptions{german}}
+\DeclareOption{draft}{\AtEndOfPackage\vrefwarning}
+\DeclareOption{final}{\AtEndOfPackage\vrefshowerrors} % the default
+\newif\if@vrefhandlespace
+\DeclareOption{space}  {\@vrefhandlespacetrue}
+\DeclareOption{nospace}{\@vrefhandlespacefalse}
+\ExecuteOptions{english,final,space}
+\ProcessOptions*
+\newcounter{vrcnt}
+\DeclareRobustCommand\vpageref{\@ifstar
+     {\let\vref@maybe@space\@empty\vp@gerefstar}%
+     {\let\vref@maybe@space\space \vp@geref}}
+\def\vp@geref{\@ifnextchar[%
+  \@vpageref{\@vpageref[\reftextcurrent]}%
+}
+\let\vref@space\space
+\def\@vpageref[#1]{\@ifnextchar[%
+  {\@@vpageref{#1}}{\@@vpageref{#1}[]}}
+\def\@@vpageref#1[#2]#3{%
+  \leavevmode
+  \@tempskipa\lastskip \unskip
+  \global\advance\c@vrcnt\@ne
+  \vref@pagenum\@tempa{\the\c@vrcnt @vr}%
+  \vref@pagenum\@tempb{\the\c@vrcnt @xvr}%
+  \vref@label{\the\c@vrcnt @xvr}%
+  \if@vrefhandlespace
+    \vref@maybe@space
+  \else
+    \ifdim\@tempskipa=\z@ \else
+      \hskip\@tempskipa
+    \fi
+  \fi
+  \ifx\@tempa\@tempb
+    \let\vref@may@loop\relax
+  \else
+    \edef\vref@may@loop{%
+      \noexpand\vref@err{\noexpand\vref or \noexpand\vpageref
+              at page boundary
+              \@tempb-\@tempa\space (may loop)%
+              }%
+      }%
+   \fi
+  \vrefpagenum\thevpagerefnum{#3}%
+  \ifx\@tempa\thevpagerefnum
+    \def\@tempc{#1}%
+    \ifx\@tempc\@empty
+       \unskip
+    \else
+       #1%
+    \fi
+  \else
+    \def\@tempc{#2}%
+    \ifx\@tempc\@empty \else
+      #2\vref@space
+    \fi
+    \is@pos@number\thevpagerefnum
+       {%
+        \is@pos@number\@tempa
+         {\@tempcnta\@tempa
+          \advance\@tempcnta\@ne
+         }%
+         {\@tempcnta\maxdimen}%
+        \ifnum \thevpagerefnum =\@tempcnta
+         \ifodd\@tempcnta
+           \if@twoside
+             \reftextfaceafter
+           \else
+             \reftextafter
+           \fi
+         \else
+           \reftextafter
+         \fi
+        \else
+          \advance\@tempcnta-2
+          \ifnum \thevpagerefnum =\@tempcnta
+            \ifodd\@tempcnta
+              \reftextbefore
+            \else
+              \if@twoside
+                \reftextfacebefore
+              \else
+                \reftextbefore
+              \fi
+            \fi
+          \else
+          \let\vref@may@loop\relax % added
+          \reftextfaraway{#3}%
+          \fi
+        \fi
+       }%
+       {%
+         \let\vref@may@loop\relax %added
+         \reftextfaraway{#3}}%
+  \fi
+   \vref@label{\the\c@vrcnt @vr}%
+   \vref@may@loop
+}
+\let\vp@gerefstar\vp@geref
+
+\def\vref@label#1{\@bsphack
+  \protected@write\@auxout{}%
+         {\string\newlabel{#1}{{}{\thepage}}}%
+  \@esphack}
+\let\thevpagerefnum\@empty
+\def\vrefwarning{\def\vref@err{\PackageWarning{varioref}}}
+\def\vrefshowerrors{\def\vref@err##1{\PackageError{varioref}{##1}%
+    {Please check the pages in question. You might need to replace
+     the \string\vref\MessageBreak
+     or \noexpand\vpageref by a normal \noexpand\(page)ref to
+     stop LaTeX running forever.}}}
+\DeclareRobustCommand\vref{\@ifstar
+   {\vref@star}{\vr@f}}
+
+\newcommand\vref@star[2][]{%
+  \ref{#2}
+  \vpageref[#1]{#2}}
+
+\def\vr@f{%
+  \leavevmode
+  \if@vrefhandlespace
+    \unskip \nobreakspace
+  \fi
+  \vref@star                    % in hyperref this needs to be explicit
+}
+\def\is@pos@number#1{\is@pos@num0#1\space\@nil}
+\def\is@pos@num{\afterassignment\is@pos@num@ \count@}
+\def\is@pos@num@#1\@nil{%
+  \ifx\@nil#1\@nil
+    \expandafter\@firstoftwo \else
+    \expandafter\@secondoftwo  \fi}
+\def\reftextvario#1#2{\ifodd\c@vrcnt #1\else#2\fi}
+\def\fullref#1{\ref{#1} \reftextfaraway{#1}}
+\def\vref@pagenum#1#2{%
+  \@ifundefined{r@#2}{\@namedef{r@#2}{{??}{??}}}{}%
+  \expandafter\expandafter\expandafter\vref@@pagenum
+  \csname r@#2\endcsname{}{}\@nil#1%
+}
+\def\vref@@pagenum#1#2#3\@nil#4{%
+  \def#4{#2}%
+}
+\def\vrefpagenum#1#2{%
+  \@ifundefined{r@#2}%
+    {\G@refundefinedtrue
+     \@latex@warning{Reference `#2' on page \thepage \space
+             undefined}}{}%
+  \vref@pagenum{#1}{#2}}
+\newcommand\@svpagerefrange[3][\reftextcurrent]{%
+  \vrefpagenum\@tempa{#2}%
+  \vrefpagenum\@tempb{#3}%
+  \ifx\@tempa\@tempb
+    \vpageref*[{#1}]{#2}%
+  \else
+    \reftextpagerange{#2}{#3}%
+  \fi
+}
+\newcommand\@vpagerefrange[3][\reftextcurrent]{%
+  \vrefpagenum\@tempa{#2}%
+  \vrefpagenum\@tempb{#3}%
+  \ifx\@tempa\@tempb
+    \vpageref[{#1}]{#2}%
+  \else
+    \reftextpagerange{#2}{#3}%
+  \fi
+}
+\newcommand\vpagerefrange{\@ifstar\@svpagerefrange\@vpagerefrange}
+\newcommand\vrefrange[3][\reftextcurrent]
+  {\reftextlabelrange{#2}{#3} \vpagerefrange[{#1}]{#2}{#3}}
+\DeclareRobustCommand\Vref{\@ifstar
+   {\Vref@star}%
+   {\Vr@f}}
+\newcommand\Vref@star[2][]{%
+  \Ref{#2}
+  \vpageref[#1]{#2}}
+\def\Vr@f{%
+  \if@vrefhandlespace
+    \unskip \vref@space
+  \fi
+  \Vref@star                  % in hyperref this needs to be explicit
+}
+
+\DeclareRobustCommand\vpagerefcompare[2]{%  label1, label2, TRUE, FALSE
+  \vrefpagenum\@tempa{#1}%
+  \vrefpagenum\@tempb{#2}%
+  \ifx\@tempa\@tempb
+    \expandafter\@firstoftwo
+  \else
+    \expandafter\@secondoftwo
+  \fi
+}
+\DeclareRobustCommand\vpagerefnearby[1]{%  label, TRUE, FALSE
+  \leavevmode
+  \@tempskipa\lastskip \unskip
+  \global\advance\c@vrcnt\tw@    % keep oddness to not disturb \vrefvario
+  \vref@label{\the\c@vrcnt @vn}%
+  \ifdim\@tempskipa=\z@ \else
+    \hskip\@tempskipa
+  \fi
+  \vref@pagenum\@tempa{\the\c@vrcnt @vn}%
+  \is@pos@number\@tempa
+      {%
+        \vrefpagenum\@tempb{#1}%
+        \is@pos@number\@tempb
+            {%
+              \ifcase\numexpr \@tempa -\@tempb+1\relax
+              \or \or \else \expandafter \@thirdofthree \fi
+              \@firstoftwo
+            }%
+            {\@secondoftwo}%
+      }%
+      {\@secondoftwo}%
+}
+
+\DeclareRobustCommand\vpagerefcomparenearby[2]{%  label1, label2, TRUE, FALSE
+  \vrefpagenum\@tempa{#1}%
+  \is@pos@number\@tempa
+      {%
+        \vrefpagenum\@tempb{#2}%
+        \is@pos@number\@tempb
+            {%
+              \ifcase\numexpr \@tempa -\@tempb+1\relax
+              \or \or \else \expandafter \@thirdofthree \fi
+              \@firstoftwo
+            }%
+            {\@secondoftwo}%
+      }%
+      {\@secondoftwo}%
+}
+
+\ifx\labelformat\@undefined  % assume we are in an older kernel
+  \def\labelformat#1{\expandafter\def\csname p@#1\endcsname##1}
+  \DeclareRobustCommand\Ref[1]{\protected@edef\@tempa{\ref{#1}}%
+     \expandafter\MakeUppercase\@tempa}
+  \def\refstepcounter#1{\stepcounter{#1}%
+      \protected@edef\@currentlabel
+         {\csname p@#1\expandafter\endcsname\csname the#1\endcsname}}
+\fi
+\endinput
+%%
+%% End of file `varioref.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/verbatim.sty b/Master/texmf-dist/tex/latex-dev/tools/verbatim.sty
new file mode 100644
index 00000000000..f7bca458976
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/verbatim.sty
@@ -0,0 +1,212 @@
+%%
+%% This is file `verbatim.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% verbatim.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% Package `verbatim' to use with LaTeX2e
+%% Copyright (C) 1989--2003 by Rainer Sch\"opf. All rights reserved.
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{verbatim}
+     [2014/10/28 v1.5q LaTeX2e package for verbatim enhancements]
+\@ifundefined{verbatim@@@}{}{\endinput}
+\newtoks\every@verbatim
+\every@verbatim={}
+\def\@makeother#1{\catcode`#112\relax}
+\begingroup
+ \catcode`\ =\active%
+ \def\x{\def\@vobeyspaces{\catcode`\ \active\let \@xobeysp}}
+ \expandafter\endgroup\x
+\def\@xobeysp{\leavevmode\penalty\@M\ }
+\newtoks\verbatim@line
+\def\verbatim@startline{\verbatim@line{}}
+\def\verbatim@addtoline#1{%
+  \verbatim@line\expandafter{\the\verbatim@line#1}}
+\def\verbatim@processline{\the\verbatim@line\par}
+\def\verbatim@finish{\ifcat$\the\verbatim@line$\else
+  \verbatim@processline\fi}
+\def\verbatim@font{\normalfont\ttfamily
+                   \hyphenchar\font\m@ne
+                   \@noligs}
+\def\@verbatim{\the\every@verbatim
+  \trivlist \item \relax
+  \if@minipage\else\vskip\parskip\fi
+  \@beginparpenalty \predisplaypenalty
+  \leftskip\@totalleftmargin\rightskip\z@
+  \parindent\z@\parfillskip\@flushglue\parskip\z@
+  \@@par
+  \def\par{%
+    \if@tempswa
+      \leavevmode\null\@@par\penalty\interlinepenalty
+    \else
+      \@tempswatrue
+      \ifhmode\@@par\penalty\interlinepenalty\fi
+    \fi}%
+  \def\@noitemerr{\@warning{No verbatim text}}%
+  \obeylines
+  \let\do\@makeother \dospecials
+  \verbatim@font
+  \everypar \expandafter{\the\everypar \unpenalty}}
+\def\verbatim{\begingroup\@verbatim \frenchspacing\@vobeyspaces
+              \verbatim@start}
+\@namedef{verbatim*}{\begingroup\@verbatim\verbatim@start}
+\def\endverbatim{\endtrivlist\endgroup\@doendpe}
+\expandafter\let\csname endverbatim*\endcsname =\endverbatim
+\def\comment{\@bsphack
+             \let\do\@makeother\dospecials\catcode`\^^M\active
+             \let\verbatim@startline\relax
+             \let\verbatim@addtoline\@gobble
+             \let\verbatim@processline\relax
+             \let\verbatim@finish\relax
+             \verbatim@}
+\let\endcomment=\@esphack
+\@ifundefined{vrb@catcodes}%
+  {\def\vrb@catcodes{%
+     \catcode`\!12\catcode`\[12\catcode`\]12}}{}
+\begingroup
+ \vrb@catcodes
+ \lccode`\!=`\\ \lccode`\[=`\{ \lccode`\]=`\}
+ \catcode`\~=\active \lccode`\~=`\^^M
+ \lccode`\C=`\C
+ \lowercase{\endgroup
+    \def\verbatim@start#1{%
+      \verbatim@startline
+      \if\noexpand#1\noexpand~%
+        \let\next\verbatim@
+      \else \def\next{\verbatim@#1}\fi
+      \next}%
+    \def\verbatim@#1~{\verbatim@@#1!end\@nil}%
+    \def\verbatim@@#1!end{%
+       \verbatim@addtoline{#1}%
+       \futurelet\next\verbatim@@@}%
+    \def\verbatim@@@#1\@nil{%
+       \ifx\next\@nil
+         \verbatim@processline
+         \verbatim@startline
+         \let\next\verbatim@
+       \else
+         \def\@tempa##1!end\@nil{##1}%
+         \@temptokena{!end}%
+         \def\next{\expandafter\verbatim@test\@tempa#1\@nil~}%
+       \fi \next}%
+    \def\verbatim@test#1{%
+           \let\next\verbatim@test
+           \if\noexpand#1\noexpand~%
+             \expandafter\verbatim@addtoline
+               \expandafter{\the\@temptokena}%
+             \verbatim@processline
+             \verbatim@startline
+             \let\next\verbatim@
+           \else \if\noexpand#1
+             \@temptokena\expandafter{\the\@temptokena#1}%
+           \else \if\noexpand#1\noexpand[%
+             \let\@tempc\@empty
+             \let\next\verbatim@testend
+           \else
+             \expandafter\verbatim@addtoline
+               \expandafter{\the\@temptokena}%
+             \def\next{\verbatim@#1}%
+           \fi\fi\fi
+           \next}%
+    \def\verbatim@testend#1{%
+         \if\noexpand#1\noexpand~%
+           \expandafter\verbatim@addtoline
+             \expandafter{\the\@temptokena[}%
+           \expandafter\verbatim@addtoline
+             \expandafter{\@tempc}%
+           \verbatim@processline
+           \verbatim@startline
+           \let\next\verbatim@
+         \else\if\noexpand#1\noexpand]%
+           \let\next\verbatim@@testend
+         \else\if\noexpand#1\noexpand!%
+           \expandafter\verbatim@addtoline
+             \expandafter{\the\@temptokena[}%
+           \expandafter\verbatim@addtoline
+             \expandafter{\@tempc}%
+           \def\next{\verbatim@!}%
+         \else \expandafter\def\expandafter\@tempc\expandafter
+           {\@tempc#1}\fi\fi\fi
+         \next}%
+    \def\verbatim@@testend{%
+       \ifx\@tempc\@currenvir
+         \verbatim@finish
+         \edef\next{\noexpand\end{\@currenvir}%
+                    \noexpand\verbatim@rescan{\@currenvir}}%
+       \else
+         \expandafter\verbatim@addtoline
+           \expandafter{\the\@temptokena[}%
+           \expandafter\verbatim@addtoline
+             \expandafter{\@tempc]}%
+         \let\next\verbatim@
+       \fi
+       \next}%
+    \def\verbatim@rescan#1#2~{\if\noexpand~\noexpand#2~\else
+        \@warning{Characters dropped after `\string\end{#1}'}\fi}}
+\newread\verbatim@in@stream
+\def\verbatim@readfile#1{%
+  \verbatim@startline
+  \openin\verbatim@in@stream #1\relax
+  \ifeof\verbatim@in@stream
+    \typeout{No file #1.}%
+  \else
+    \@addtofilelist{#1}%
+    \ProvidesFile{#1}[(verbatim)]%
+    \expandafter\endlinechar\expandafter\m@ne
+    \expandafter\verbatim@read@file
+    \expandafter\endlinechar\the\endlinechar\relax
+    \closein\verbatim@in@stream
+  \fi
+  \verbatim@finish
+}
+\def\verbatim@read@file{%
+  \read\verbatim@in@stream to\next
+  \ifeof\verbatim@in@stream
+  \else
+    \expandafter\verbatim@addtoline\expandafter{\next}%
+    \verbatim@processline
+    \verbatim@startline
+    \expandafter\verbatim@read@file
+  \fi
+}
+\def\verbatiminput{\begingroup
+  \@ifstar{\verbatim@input\relax}%
+          {\verbatim@input{\frenchspacing\@vobeyspaces}}}
+\def\verbatim@input#1#2{%
+   \IfFileExists {#2}{\@verbatim #1\relax
+    \verbatim@readfile{\@filef@und}\endtrivlist\endgroup\@doendpe}%
+   {\typeout {No file #2.}\endgroup}}
+\endinput
+%%
+%% End of file `verbatim.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/verbtest.tex b/Master/texmf-dist/tex/latex-dev/tools/verbtest.tex
new file mode 100644
index 00000000000..5440d3e2584
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/verbtest.tex
@@ -0,0 +1,181 @@
+%%
+%% This is file `verbtest.tex',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% verbatim.dtx  (with options: `testdriver')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% Package `verbatim' to use with LaTeX2e
+%% Copyright (C) 1989--2003 by Rainer Sch\"opf. All rights reserved.
+\documentclass{article}
+
+\usepackage{verbatim}
+
+\newenvironment{myverbatim}%
+   {\endgraf\noindent MYVERBATIM:\endgraf\verbatim}%
+   {\endverbatim}
+
+\makeatletter
+
+\newenvironment{verbatimlisting}[1]%
+ {\def\verbatim@startline{\input{#1}%
+    \def\verbatim@startline{\verbatim@line{}}%
+    \verbatim@startline}%
+  \verbatim}{\endverbatim}
+
+\newwrite\verbatim@out
+
+\newenvironment{verbatimwrite}[1]%
+ {\@bsphack
+  \immediate\openout \verbatim@out #1
+  \let\do\@makeother\dospecials\catcode`\^^M\active
+  \def\verbatim@processline{%
+    \immediate\write\verbatim@out{\the\verbatim@line}}%
+  \verbatim@start}%
+ {\immediate\closeout\verbatim@out\@esphack}
+
+\makeatother
+
+\addtolength{\textwidth}{30pt}
+
+\begin{document}
+
+\typeout{}
+\typeout{===> Expect ``characters dropped''
+         warning messages in this test! <====}
+\typeout{}
+
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+  \begin{verbatim}
+    test
+    \end{verbatim*}
+    test
+    \end{verbatim
+    test of ligatures: <`!`?`>
+    \endverbatim
+    test
+    \end  verbatim
+    test
+    test of end of line:
+    \end
+    {verbatim}
+  \end{verbatim} Further text to be typeset: $\alpha$.
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+  \begin{verbatim*}
+    test
+    test
+  \end {verbatim*}
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+  \begin{verbatim*}  bla bla
+    test
+    test
+  \end {verbatim*}
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+
+First of Chris Rowley's fiendish tests:
+\begin{verbatim}
+the double end test<text>
+\end\end{verbatim}  or even \end \end{verbatim}
+
+Another of Chris' devils:
+\begin{verbatim}
+the single brace test<text>
+\end{not the end\end{verbatim}
+Back to my own tests:
+  \begin{myverbatim}
+    test
+    test
+  \end {myverbatim} rest of line
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+
+Test of empty verbatim:
+\begin{verbatim}
+\end{verbatim}
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+  \begin {verbatimlisting}{verbtest.tex}
+    Additional verbatim text
+      ...
+  \end{verbatimlisting}
+And here for listing a file:
+  \verbatiminput{verbtest.tex}
+And again, with explicit spaces:
+  \verbatiminput*{verbtest.tex}
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+  \begin{comment}
+    test
+    \end{verbatim*}
+    test
+    \end {comment
+    test
+    \endverbatim
+    test
+    \end  verbatim
+    test
+  \end {comment} Further text to be typeset: $\alpha$.
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+  \begin{comment}  bla bla
+    test
+    test
+  \end {comment}
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+Text Text Text Text Text Text Text Text Text Text Text
+
+\begin{verbatimwrite}{verbtest.txt}
+asfa<fa<df
+sdfsdfasd
+asdfa<fsa
+\end{verbatimwrite}
+
+\end{document}
+\endinput
+%%
+%% End of file `verbtest.tex'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/x.tex b/Master/texmf-dist/tex/latex-dev/tools/x.tex
new file mode 100644
index 00000000000..f9040d63176
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/x.tex
@@ -0,0 +1,41 @@
+%%
+%% This is file `x.tex',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% fileerr.dtx  (with options: `exit')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+  \batchmode \errmessage{}\csname @@end\endcsname \end
+\endinput
+%%
+%% End of file `x.tex'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/xr.sty b/Master/texmf-dist/tex/latex-dev/tools/xr.sty
new file mode 100644
index 00000000000..05125cee3ed
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/xr.sty
@@ -0,0 +1,80 @@
+%%
+%% This is file `xr.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% xr.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% File: xr.dtx Copyright (C) 1993-2019 David Carlisle
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{xr}
+         [2019/07/22 v5.05 eXternal References (DPC)]
+\def\externaldocument{\@ifnextchar[\XR@{\XR@[]}}
+\let\externalcitedocument\externaldocument
+\def\XR@[#1]#2{{%
+  \makeatletter
+  \def\XR@prefix{#1}%
+  \XR@next#2.aux\relax\\}}
+\def\XR@next#1\relax#2\\{%
+  \edef\XR@list{#2}%
+  \XR@loop{#1}}
+\def\XR@aux{%
+  \ifx\XR@list\@empty\else\expandafter\XR@explist\fi}
+
+\def\XR@explist{\expandafter\XR@next\XR@list\\}
+\def\XR@loop#1{\openin\@inputcheck#1\relax
+  \ifeof\@inputcheck
+    \PackageWarning{xr}{^^JNo file #1^^JLABELS NOT IMPORTED.^^J}%
+    \expandafter\XR@aux
+  \else
+    \PackageInfo{xr}{IMPORTING LABELS FROM #1}%
+    \expandafter\XR@read\fi}
+\def\XR@read{%
+  \read\@inputcheck to\XR@line
+  \expandafter\XR@test\XR@line...\XR@}
+\long\def\XR@test#1#2#3#4\XR@{%
+  \let\XR@tempa\@gobbletwo
+  \ifx#1\newlabel
+    \let\XR@tempa\@firstoftwo
+  \else\ifx#1\bibcite
+    \let\XR@tempa\@firstoftwo
+  \else\ifx#1\@input
+     \let\XR@tempa\@secondoftwo
+  \fi\fi\fi
+   \XR@tempa{#1{\XR@prefix#2}{#3}}{\edef\XR@list{\XR@list#2\relax}}%
+  \ifeof\@inputcheck\expandafter\XR@aux
+  \else\expandafter\XR@read\fi}
+
+\endinput
+%%
+%% End of file `xr.sty'.
diff --git a/Master/texmf-dist/tex/latex-dev/tools/xspace.sty b/Master/texmf-dist/tex/latex-dev/tools/xspace.sty
new file mode 100644
index 00000000000..11eb6ab2228
--- /dev/null
+++ b/Master/texmf-dist/tex/latex-dev/tools/xspace.sty
@@ -0,0 +1,152 @@
+%%
+%% This is file `xspace.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% xspace.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% The source is maintained by the LaTeX Project team and bug
+%% reports for it can be opened at https://latex-project.org/bugs/
+%% (but please observe conditions on bug reports sent to that address!)
+%% 
+%% 
+%% Copyright (C) 1993-2019
+%% The LaTeX3 Project and any individual authors listed elsewhere
+%% in this file.
+%% 
+%% This file was generated from file(s) of the Standard LaTeX `Tools Bundle'.
+%% --------------------------------------------------------------------------
+%% 
+%% It may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3c
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%    https://www.latex-project.org/lppl.txt
+%% and version 1.3c or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+%% This file may only be distributed together with a copy of the LaTeX
+%% `Tools Bundle'. You may however distribute the LaTeX `Tools Bundle'
+%% without such generated files.
+%% 
+%% The list of all files belonging to the LaTeX `Tools Bundle' is
+%% given in the file `manifest.txt'.
+%% 
+%% File: xspace.dtx Copyright (C) 1991-1997 David Carlisle
+%% File: xspace.dtx Copyright (C) 2004-2006 David Carlisle,
+%%                                          Morten H\o gholm
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{xspace}
+          [2014/10/28 v1.13 Space after command names (DPC,MH)]
+\DeclareRobustCommand\xspace{\@xspace@firsttrue
+  \futurelet\@let@token\@xspace}
+\newif\if@xspace@first
+\def\@xspace@simple{\futurelet\@let@token\@xspace}
+\def\@xspace@exceptions@tlp{%
+  ,.'/?;:!~-)\ \/\bgroup\egroup\@sptoken\space\@xobeysp
+  \footnote\footnotemark
+  \xspace@check@icr
+}
+\begingroup
+  \text@command\relax
+  \global\let\xspace@check@icr\check@icr
+\endgroup
+\newcommand*\xspaceaddexceptions{%
+  \g@addto@macro\@xspace@exceptions@tlp
+}
+\newcommand*\xspaceremoveexception[1]{%
+  \def\reserved@a##1#1##2##3\@@{%
+    \@xspace@if@q@nil@NF##2{%
+      \def\reserved@a####1#1####2\@@{%
+        \gdef\@xspace@exceptions@tlp{####1####2}}%
+      \expandafter\reserved@a\@xspace@exceptions@tlp\@@
+    }%
+  }%
+  \expandafter\reserved@a\@xspace@exceptions@tlp#1\@xspace@q@nil\@@
+}
+\def\@xspace@break@loop#1\@nil{}
+\providecommand*\@xspace@hook{}
+\begingroup\expandafter\expandafter\expandafter\endgroup
+  \expandafter\ifx\csname eTeXversion\endcsname\relax
+  \begingroup
+    \catcode`\;=\active  \catcode`\:=\active
+    \catcode`\?=\active  \catcode`\!=\active
+    \catcode`\,=\active  \catcode`\'=\active  \catcode`\-=\active
+    \xspaceaddexceptions{;:?!,'-}
+  \endgroup
+  \let\@xspace@eTeX@setup\relax
+\else
+  \def\@xspace@eTeX@setup{%
+    \begingroup
+      \everyeof{}%
+      \endlinechar=-1\relax
+      \catcode`\ =10\relax
+      \makeatletter
+      \catcode`\\\z@
+      \catcode`\{\@ne
+      \catcode`\}\tw@
+      \scantokens\expandafter{\expandafter\gdef
+        \expandafter\@xspace@exceptions@tlp
+        \expandafter{\@xspace@exceptions@tlp}}%
+    \endgroup
+  }
+\fi
+\def\@xspace{%
+  \@xspace@lettoken@if@letter@TF \space{%
+    \if@xspace@first
+      \@xspace@firstfalse
+      \let\@xspace@maybespace\space
+      \@xspace@eTeX@setup
+    \fi
+    \expandafter\@xspace@check@token
+      \@xspace@exceptions@tlp\@xspace@q@nil\@nil
+    \@xspace@token@if@equal@NNT \space \@xspace@maybespace
+    {%
+      \@xspace@lettoken@if@expandable@TF
+      {\expandafter\@xspace@simple}%
+      {\@xspace@maybespace\@xspace@hook}%
+    }%
+  }%
+}
+\def\@xspace@check@token #1{%
+  \ifx\@xspace@q@nil#1%
+    \expandafter\@xspace@break@loop
+  \fi
+  \expandafter\ifx\csname @let@token\endcsname#1%
+    \let\@xspace@maybespace\relax
+    \expandafter\@xspace@break@loop
+  \fi
+  \@xspace@check@token
+}
+\def\@xspace@lettoken@if@letter@TF{%
+  \ifcat\noexpand\@let@token @% letter
+    \expandafter\@firstoftwo
+  \else
+    \expandafter\@secondoftwo
+  \fi}
+\def\@xspace@lettoken@if@expandable@TF{%
+  \expandafter\ifx\noexpand\@let@token\@let@token%
+    \expandafter\@secondoftwo
+  \else
+    \expandafter\@firstoftwo
+  \fi
+}
+\def\@xspace@token@if@equal@NNT#1#2{%
+  \ifx#1#2%
+    \expandafter\@firstofone
+  \else
+    \expandafter\@gobble
+  \fi}
+\def\@xspace@q@nil{\@xspace@q@nil}
+\def\@xspace@if@q@nil@NF#1{%
+  \ifx\@xspace@q@nil#1%
+    \expandafter\@gobble
+  \else
+    \expandafter\@firstofone
+  \fi}
+\endinput
+%%
+%% End of file `xspace.sty'.