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% =====================================
% FAKEOLD-ARROWS.STY
% By Scott Pakin <scott+clsl@pakin.org>
% =====================================
%
% Provide a mock version of old-arrows.sty that (1) doesn't consume a
% precious math alphabet and (2) renames all symbols to avoid conflicts
% with other LaTeX packages.
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{old-arrows}[2017/01/05 v2.0 Old Arrows]
% Font declaration
\DeclareFontFamily{OMS}{oasy}{\skewchar\font48 }
\DeclareFontShape{OMS}{oasy}{m}{n}{%
<-5.5> oasy5 <5.5-6.5> oasy6
<6.5-7.5> oasy7 <7.5-8.5> oasy8
<8.5-9.5> oasy9 <9.5-> oasy10
}{}
% Math symbols
\DeclareRobustCommand{\OLDleftarrow}{{\usefont{OMS}{oasy}{m}{n}\char"20}}
\DeclareRobustCommand{\OLDleftrightarrow}{{\usefont{OMS}{oasy}{m}{n}\char"24}}
\DeclareRobustCommand{\OLDmapstochar}{{\usefont{OMS}{oasy}{m}{n}\char"37}}
\DeclareRobustCommand{\OLDmeno}{{\usefont{OMS}{oasy}{m}{n}\char"00}}
\DeclareRobustCommand{\OLDnearrow}{{\usefont{OMS}{oasy}{m}{n}\char"25}}
\DeclareRobustCommand{\OLDnwarrow}{{\usefont{OMS}{oasy}{m}{n}\char"2D}}
\DeclareRobustCommand{\OLDrightarrow}{{\usefont{OMS}{oasy}{m}{n}\char"21}}
\DeclareRobustCommand{\OLDsearrow}{{\usefont{OMS}{oasy}{m}{n}\char"26}}
\DeclareRobustCommand{\OLDswarrow}{{\usefont{OMS}{oasy}{m}{n}\char"2E}}
\DeclareRobustCommand{\OLDnearrow}{{\usefont{OMS}{oasy}{m}{n}\char"25}}
\DeclareRobustCommand{\OLDsearrow}{{\usefont{OMS}{oasy}{m}{n}\char"26}}
\DeclareRobustCommand{\OLDnwarrow}{{\usefont{OMS}{oasy}{m}{n}\char"2D}}
\DeclareRobustCommand{\OLDswarrow}{{\usefont{OMS}{oasy}{m}{n}\char"2E}}
% Delimiters
\DeclareRobustCommand{\OLDuparrow}{{\usefont{OMS}{oasy}{m}{n}\char"22}}
\DeclareRobustCommand{\OLDdownarrow}{{\usefont{OMS}{oasy}{m}{n}\char"23}}
\DeclareRobustCommand{\OLDupdownarrow}{{\usefont{OMS}{oasy}{m}{n}\char"6C}}
% Combined symbols
\DeclareRobustCommand{\OLDjoinrelaz}{\mathrel{\mkern-3mu}}
\let\OLDrelbarra=\OLDmeno
\DeclareRobustCommand{\OLDmapsto}{\OLDmapstochar\OLDrightarrow}
\DeclareRobustCommand{\OLDmapsfrom}{\OLDleftarrow$\mapsfromchar$}
\DeclareRobustCommand{\OLDhookrightarrow}{$\lhook\OLDjoinrelaz$\OLDrightarrow}
\DeclareRobustCommand{\OLDhookleftarrow}{\OLDleftarrow$\OLDjoinrelaz\rhook$}
\DeclareRobustCommand{\OLDlongrightarrow}{\OLDrelbarra$\OLDjoinrelaz$\OLDrightarrow}
\DeclareRobustCommand{\OLDlongleftarrow}{\OLDleftarrow$\OLDjoinrelaz$\OLDrelbarra}
\DeclareRobustCommand{\OLDlongmapsto}{\OLDmapstochar\OLDlongrightarrow}
\DeclareRobustCommand{\OLDlongmapsfrom}{\OLDlongleftarrow$\mapsfromchar$}
\DeclareRobustCommand{\OLDlongleftrightarrow}{\OLDleftarrow$\OLDjoinrelaz$\OLDrightarrow}
\DeclareRobustCommand{\OLDlonghookrightarrow}{$\lhook\joinrel$\OLDlongrightarrow}
\DeclareRobustCommand{\OLDlonghookleftarrow}{\OLDlongleftarrow$\joinrel\rhook$}
\DeclareRobustCommand{\OLDlongleftharpoonup}{$\leftharpoonup\joinrel\relbar$}
\DeclareRobustCommand{\OLDlongleftharpoondown}{$\leftharpoondown\joinrel\relbar$}
\DeclareRobustCommand{\OLDlongrightharpoonup}{$\relbar\joinrel\rightharpoonup$}
\DeclareRobustCommand{\OLDlongrightharpoondown}{$\relbar\joinrel\rightharpoondown$}
\endinput
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