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+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+A mathematician often needs special symbols to designate sets such as the
+integers, the reals etc..
+
+For the time being, the only fonts providing these special symbols have been:
+ - the AMS fonts msbm (older version msym), which are intended for use with
+Times and aren't truly what a mathematician expects (the stress is on both
+stems instead of being on only the left one).
+ - Alan Jeffrey's bbold fonts, which are sans-serif ones, with (almost) no
+possibility of design variations for, say, a bold variant.
+That was all, and in particular nothing for use with Computer Modern.
+
+I was already working at that time on the project of changing the codes of
+romanu.mf, romanl.mf and other files to add a 'Blackboard' variant to
+Computer Modern.
+
+ YOU HAVE IT ALL THERE !!!
+
+The whole package contains five 'main' files:
+ - blbbase.mf (the 'base') contains the supplementary definitions needed
+for double stems etc..
+ - blbord.mf (the 'driver') is fairly simple and only makes the necessary
+calls.
+ - blbordu.mf (based on romanu.mf): programs for uppercase letters.
+ - blbordl.mf (based on romanl.mf): programs for lowercase letters.
+ - blbordsp.mf (based on romand.mf and punct.mf): programs for the digits~1
+and~2 and for parentheses and brackets.
+
+There is also a whole lot of parameter files that are (almost) the same as
+those provided by DEK.
+
+For most of them, the only differences are
+- change 'cmbase' for 'blbbase' on line~2
+- change 'generate roman' for 'generate blbord' on last line
+- add two extra parameters (interspace# and cap_interspace#).
+
+A LaTeX(2e) package written by Torsten Hilbrich for using these fonts is also
+available nearby, exactly in ctan/macros/latex/contrib/supported/bbm/
+
+I sincerely hope you'll enjoy using these fonts; if you get into problems
+while using them, I should be reachable at
+
+ _ _ Gilles F. ROBERT
+| Unit\'e de Math\'ematiques Pures et Appliqu\'ees
+| _ _ _ \'Ecole Normale Sup\'erieure
+| | | 46, All\'ee d'Italie
+|_ _|_ _| 69364 Lyon Cedex (FRANCE)
+ | \
+ | \ e-mail : gfrobert@umpa.ens-lyon.fr
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%