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88 lines
3.4 KiB
88 lines
3.4 KiB
%%% ====================================================================
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%%% amssym.def + txfonts (JM+SW) 09.03.2001. Public domain
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%%% macros borowed from amssym.def ver. 2.2b and amstex.tex ver. 2.1
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%%% by American Mathematical Society
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%%% This file must not be changed. However, if you do make changes,
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%%% you first rename it to some other name.
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%%% ====================================================================
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\expandafter\ifx\csname amsqtx.def\endcsname\relax \else\endinput\fi
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\ifx\PT\undefined\def\PT{pt}\fi
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%
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% Store the catcode of the @ in the csname so that it can be restored later.
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\expandafter\edef\csname amsqtx.def\endcsname{%
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\catcode`\noexpand\@=\the\catcode`\@\space}
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% Set the catcode to 11 for use in private control sequence names.
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\catcode`\@=11
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%
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% Include all definitions related to the fonts msam, msbm and eufm, so that
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%%% ^txsya^txsyb ^txmia (JM)
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% when this file is used by itself, the results with respect to those fonts
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% are equivalent to what they would have been using AMS-TeX.
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% Most symbols in fonts txsya and txsyb are defined using \newsymbol;
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% however, a few symbols that replace composites defined in plain must be
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% defined with \mathchardef.
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\def\undefine#1{\let#1\undefined}
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\def\newsymbol#1#2#3#4#5{\let\next@\relax
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\ifnum#2=\@ne\let\next@\txafam@\else
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\ifnum#2=\tw@\let\next@\txbfam@\fi\fi
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\mathchardef#1="#3\next@#4#5}
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\def\mathhexbox@#1#2#3{\relax
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\ifmmode\mathpalette{}{\m@th\mathchar"#1#2#3}%
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\else\leavevmode\hbox{$\m@th\mathchar"#1#2#3$}\fi}
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\def\hexnumber@#1{\ifcase#1 0\or 1\or 2\or 3\or 4\or 5\or 6\or 7\or 8\or
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9\or A\or B\or C\or D\or E\or F\fi}
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\font\tentxa=txsya at 10\PT % msam10
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\font\seventxa=txsya at 7\PT % msam7
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\font\fivetxa=txsya at 5\PT % msam5
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\newfam\txafam
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\textfont\txafam=\tentxa
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\scriptfont\txafam=\seventxa
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\scriptscriptfont\txafam=\fivetxa
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\edef\txafam@{\hexnumber@\txafam}
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\mathchardef\dabar@"0\txafam@39
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\def\dashrightarrow{\mathrel{\dabar@\dabar@\mathchar"0\txafam@4B}}
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\def\dashleftarrow{\mathrel{\mathchar"0\txafam@4C\dabar@\dabar@}}
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\let\dasharrow\dashrightarrow
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\def\ulcorner{\delimiter"4\txafam@70\txafam@70 }
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\def\urcorner{\delimiter"5\txafam@71\txafam@71 }
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\def\llcorner{\delimiter"4\txafam@78\txafam@78 }
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\def\lrcorner{\delimiter"5\txafam@79\txafam@79 }
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% Note that there should not be a final space after the digits for a
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% \mathhexbox@.
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\def\yen{{\mathhexbox@\txafam@55}}
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\def\checkmark{{\mathhexbox@\txafam@58}}
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\def\circledR{{\mathhexbox@\txafam@72}}
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\def\maltese{{\mathhexbox@\txafam@7A}}
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\font\tentxb=txsyb at 10\PT % msbm10
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\font\seventxb=txsyb at 7\PT % msbm7
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\font\fivetxb=txsyb at 5\PT % msbm5
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\newfam\txbfam
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\textfont\txbfam=\tentxb
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\scriptfont\txbfam=\seventxb
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\scriptscriptfont\txbfam=\fivetxb
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\edef\txbfam@{\hexnumber@\txbfam}
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\def\Bbb#1{{\fam\txbfam\relax#1}}
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\def\widehat#1{\setbox\z@\hbox{$\m@th#1$}%
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\ifdim\wd\z@>\tw@ em\mathaccent"0\txbfam@5B{#1}%
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\else\mathaccent"0362{#1}\fi}
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\def\widetilde#1{\setbox\z@\hbox{$\m@th#1$}%
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\ifdim\wd\z@>\tw@ em\mathaccent"0\txbfam@5D{#1}%
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\else\mathaccent"0365{#1}\fi}
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%%--
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\font\teneufm=txmia at 10\PT % eufm10
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\font\seveneufm=txmia at 7\PT % eufm7
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\font\fiveeufm=txmia at 5\PT % eufm5
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\newfam\eufmfam
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\textfont\eufmfam=\teneufm
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\scriptfont\eufmfam=\seveneufm
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\scriptscriptfont\eufmfam=\fiveeufm
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\def\frak#1{{\fam\eufmfam\relax#1}}
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\let\goth\frak
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% Restore the catcode value for @ that was previously saved.
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\csname amsqtx.def\endcsname
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\endinput
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