Warning: this is an htmlized version!
The original is here, and
the conversion rules are here.
% This file: (find-LATEX "edrx21.sty")
% Loads:     (find-LATEX "edrx21defs.tex")
% Based on:  (find-LATEX "edrx17.sty")
%            (find-LATEX "edrx15.sty")
%            (find-LATEX "edrx08.sty")
% Version: 2023oct14  <- don't trust this date

% «.arrows»		(to "arrows")
% «.pbsymbol»		(to "pbsymbol")
% «.fcded»		(to "fcded")
% «.myvcenter»		(to "myvcenter")
% «.savebox»		(to "savebox")
% «.crossover»		(to "crossover")
% «.picture-cells»	(to "picture-cells")
% «.diagprep»		(to "diagprep")
% «.psm-and-pmat»	(to "psm-and-pmat")
% «.pmtt-and-smtt»	(to "pmtt-and-smtt")
% «.dednat6»		(to "dednat6")
%   «.defzha»		(to "defzha")
%   «.deftcg»		(to "deftcg")
%   «.defub»		(to "defub")
%   «.defftch»		(to "defftch")
%   «.defvbt»		(to "defvbt")
%   «.sa-and-ga»	(to "sa-and-ga")
%   «.maximablue-red»	(to "maximablue-red")

\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
%\usepackage{mathrsfs}
%\usepackage{stmaryrd}
\usepackage{array}       % (find-es "tex" "array")
%\usepackage{shortvrb}   % (find-es "tex" "shortvrb")
\usepackage{graphicx}    % (find-es "tex" "graphicx")



% Not here:
% (find-LATEX "edrx17.sty" "bbold")
% (find-LATEX "edrx17.sty" "ttchars")


%                                   
%   __ _ _ __ _ __ _____      _____ 
%  / _` | '__| '__/ _ \ \ /\ / / __|
% | (_| | |  | | | (_) \ V  V /\__ \
%  \__,_|_|  |_|  \___/ \_/\_/ |___/
%                                   
% «arrows»  (to ".arrows")
% (find-symbolspage 41)

\def\ito     {\hookrightarrow}
\def\isoto   {\underset{iso}{\to}}
\def\epito   {{\twoheadrightarrow}}
\def\bij     {\leftrightarrow}
\def\toto    {\rightrightarrows}
\def\functo  {\Rightarrow}
\def\ton   #1{\overset{#1}{\to}}
\def\xton  #1{\xrightarrow{#1}}
\def\iton  #1{\overset{#1}{\ito}}
\def\otn   #1{\overset{#1}{\ot}}
\def\TNto    {\overset{.}{\to}}
\def\idto    {\overset{id}{\to}}
\def\vaipra  {\quad\Longrightarrow\quad}
\def\funto   {\Rightarrow}
\def\funton#1{\overset{#1}\Rightarrow}
\def\tnto    {\ton{\bullet}}
%\def\iff{\Leftrightarrow}
\def\Bij     {\Leftrightarrow}
\def\funot   {\Leftarrow}
\def\dnto    {\downarrow}
\def\upto    {\uparrow}
\def\dnfunto {\Downarrow}
\def\upfunto {\Uparrow}
\def\monicto {\rightarrowtail}
\def\monicot {\leftarrowtail}
\def\ot      {\leftarrow}
\def\squigto {\rightsquigarrow}
\def\squigbij{\leftrightsquigarrow}
\def\sqto    {\rightsquigarrow}
\def\sqbij   {\leftrightsquigarrow}
\def\vbij    {\updownarrow}
\def\lrto    {\leftrightarrows}

\def\mto     {{\mapsto}}
\def\mton  #1{\overset{#1}{\mto}}
\def\widemtos{\def\mto{\mapsto}}
\def\thinmtos{\def\mto{{\mapsto}}}

\def\lmto    {\mapsto}
\def\tnton #1{\underset{#1}{\overset{\bullet}{\to}}}

\def\mapsot  {\leftarrow\mapsfromchar}
\def\mot     {{\mapsot}}
\def\iot     {\hookleftarrow}
\def\dashto  {\dashrightarrow}
\def\dashot  {\dashleftarrow}
\def\mdashto {\mapstochar\dashrightarrow}
\def\mdashot {\dashleftarrow\mapsfromchar}

\def\origphi {\phi}



%        _                         _           _ 
%  _ __ | |__  ___ _   _ _ __ ___ | |__   ___ | |
% | '_ \| '_ \/ __| | | | '_ ` _ \| '_ \ / _ \| |
% | |_) | |_) \__ \ |_| | | | | | | |_) | (_) | |
% | .__/|_.__/|___/\__, |_| |_| |_|_.__/ \___/|_|
% |_|              |___/                         
%
% «pbsymbol»  (to ".pbsymbol")
\def\pbsymbol#1{%
  \begin{picture}(#1,#1)
    \put(0,0){\line(1,0){#1}}
    \put(#1,#1){\line(0,-1){#1}}
  \end{picture}}


% Not here:
% (find-LATEX "edrx17.sty" "limp")
% (find-LATEX "edrx17.sty" "standardabbrevs")

% «fcded» (to ".fcded")
\def\cded #1{\begin{matrix}\ded {#1}\end{matrix}}
\def\cdiag#1{\begin{matrix}\diag{#1}\end{matrix}}
\def\pdiag#1{\left( \diag{#1} \right)}

\def\fcded#1{\fbox{$\cded{#1}$}}
\def\fbded#1{\fbox{$\ded{#1}$}}

% Todo: compare using "matrix" and "vcenter" for cded and cdiag... See:
% http://www.phil.cam.ac.uk/teaching_staff/Smith/LaTeX/ndexamples/proofsty3.html
% I have not tested the \vcenter method much - but here are the definitions,
% if they work they will be renamed \cded and \cdiag and will replace the
% current ones.
\def\vcded #1{\vcenter{\leavevmode$\ded {#1}$}}
\def\vcdiag#1{\vcenter{\leavevmode$\diag{#1}$}}

% «myvcenter»  (to ".myvcenter")
%\def\myvcenter#1{\begin{matrix}#1\end{matrix}}
\def\myvcenter#1{\ensuremath{\begin{matrix}#1\end{matrix}}}

\def\rotl#1{\rotatebox{90}{$#1$}}
\def\rotr#1{\rotatebox{270}{$#1$}}


%           _              _       __     
%   ___  __| |_ ____  ____| | ___ / _|___ 
%  / _ \/ _` | '__\ \/ / _` |/ _ \ |_/ __|
% |  __/ (_| | |   >  < (_| |  __/  _\__ \
%  \___|\__,_|_|  /_/\_\__,_|\___|_| |___/
%                                         
%\input edrx15defs.tex        % (find-LATEX "edrx15defs.tex")
\input edrx21defs.tex         % (find-LATEX "edrx21defs.tex")
\def\co{\mathrm{co}}
\def\bsk{\bigskip}
\def\msk{\medskip}
\def\ssk{\smallskip}

\def\Opens{\mathcal{O}}
\def\compl{{\text{\,compl}}}
%\def\interior{{\text{int}}}
\def\sh{\sharp}
\def\fl{\flat}





\def\calU{{\mathcal{U}}}
\def\calV{{\mathcal{V}}}

% «savebox»  (to ".savebox")
% These are mainly for nested diagrams
% (find-LATEX "2008graphs.tex" "ess-and-star")
% (find-LATEX "2008graphs.tex" "minimal-dag")
% (find-LATEX "2008graphs.tex" "minimal-dag" "A .tex= \\usebox{\\myboxa}")
% (find-kopkadaly4page (+ 12  87) "\\newsavebox{\\boxname}")
% (find-kopkadaly4text            "\\newsavebox{\\boxname}")
\newsavebox{\myboxa}
\newsavebox{\myboxb}
\newsavebox{\myboxc}
\newsavebox{\myboxd}
\newsavebox{\myboxe}
\newsavebox{\myboxf}
\newsavebox{\myboxg}
\newsavebox{\myboxh}

% «picture-cells» (to ".picture-cells")
% (find-LATEX "edrx21defs.tex" "cells")
% (find-es "tex" "picture-cells")
% (find-dn5 "newrect.lua" "makepicture")

% «diagprep»  (to ".diagprep")
% (find-dn4ex "edrxdnt.tex" "defdiag")
% Experimental, 2010mar25

% «crossover»  (to ".crossover")
% (find-es "tex" "crossover")
\def\crossover#1#2#3{%
  \setbox0\hbox{#1}%
  \copy0%
  \hskip -\wd0%
  \setbox1\hbox{\vrule height#2 width\wd0 depth0pt}%
  \raise#3\copy1\relax}
\def\mycrossover#1{\crossover{#1}{0.25pt}{1.75pt}}


\def\emp{\emptyset}
\def\ang#1{\langle#1\rangle}


% «psm-and-pmat» (to ".psm-and-pmat")
%
\def\sm #1{\begin{smallmatrix}#1\end{smallmatrix}}
\def\psm#1{\left (\begin{smallmatrix}#1\end{smallmatrix}\right )}
\def\bsm#1{\left [\begin{smallmatrix}#1\end{smallmatrix}\right ]}
\def\csm#1{\left\{\begin{smallmatrix}#1\end{smallmatrix}\right\}}
%
\def\mat  #1{\begin{matrix}#1\end{matrix}}
\def\pmat #1{\left (\begin{matrix}#1\end{matrix}\right )}
\def\bmat #1{\left [\begin{matrix}#1\end{matrix}\right ]}
\def\cmat #1{\left\{\begin{matrix}#1\end{matrix}\right\}}
%
\def\bmatt#1{\begin{array}[t][{c}]#1\end{array}}  % (find-es "tex" "delarray")


% «pmtt-and-smtt»  (to ".pmtt-and-smtt")
%
\def\pmt         #1{\pmat{\text{#1}}}
\def\pmtt      #1#2{\pmat{\text{#1} \\ \text{#2}}}
\def\pmttt   #1#2#3{\pmat{\text{#1} \\ \text{#2} \\ \text{#3}}}
\def\pmtttt#1#2#3#4{\pmat{\text{#1} \\ \text{#2} \\ \text{#3} \\ \text{#4}}}
%
\def\smt         #1{\sm{\text{#1}}}
\def\smtt      #1#2{\sm{\text{#1} \\ \text{#2}}}
\def\smttt   #1#2#3{\sm{\text{#1} \\ \text{#2} \\ \text{#3}}}
\def\smtttt#1#2#3#4{\sm{\text{#1} \\ \text{#2} \\ \text{#3} \\ \text{#4}}}




%  ____           _             _    __   
% |  _ \  ___  __| |_ __   __ _| |_ / /_  
% | | | |/ _ \/ _` | '_ \ / _` | __| '_ \ 
% | |_| |  __/ (_| | | | | (_| | |_| (_) |
% |____/ \___|\__,_|_| |_|\__,_|\__|\___/ 
%                                         
% «dednat6» (to ".dednat6")
% (find-dn6 "output.lua")
\def\expr#1{\directlua{output(tostring(#1))}}
\def\eval#1{\directlua{#1)}}
%
% (find-dn6 "texfile.lua" "TexFile")
% (find-dn6 "texfile.lua" "TexFile" "pu =")
\def\pu{\directlua{pu()}}

% «defzha»  (to ".defzha")
% «deftcg»  (to ".deftcg")
% (find-es "dednat" "defzha-and-deftcg")
\def\defzha#1#2{\expandafter\def\csname zha-#1\endcsname{#2}}
\def\ifzhaundefined#1{\expandafter\ifx\csname zha-#1\endcsname\relax}
\def\zha#1{\ifzhaundefined{#1}
    \errmessage{UNDEFINED ZHA: #1}
  \else
    \csname zha-#1\endcsname
  \fi
}
\def\deftcg#1#2{\expandafter\def\csname tcg-#1\endcsname{#2}}
\def\iftcgundefined#1{\expandafter\ifx\csname tcg-#1\endcsname\relax}
\def\tcg#1{\iftcgundefined{#1}
    \errmessage{UNDEFINED TCG: #1}
  \else
    \csname tcg-#1\endcsname
  \fi
}

% «defub»  (to ".defub")
% (find-es "dednat" "defub")
\def\defub#1#2{\expandafter\def\csname ub-#1\endcsname{#2}}
\def\ifubundefined#1{\expandafter\ifx\csname ub-#1\endcsname\relax}
\def\ub#1{\ifubundefined{#1}
    \errmessage{UNDEFINED UB: #1}
  \else
    \csname ub-#1\endcsname
  \fi
}

% «defftch»  (to ".defftch")
% (find-LATEX "2021fitch.lua" "FitchGrid")
% (find-LATEX "2021fitch.lua" "FitchGrid" "defftch =")
\def\defftch#1#2{\expandafter\def\csname ftch-#1\endcsname{#2}}
\def\ifftchundefined#1{\expandafter\ifx\csname ftch-#1\endcsname\relax}
\def\ftch#1{\ifftchundefined{#1}
    \errmessage{UNDEFINED FTCH: #1}
  \else
    \csname ftch-#1\endcsname
  \fi
}

% «defvbt»  (to ".defvbt")
% (find-LATEX "2021verbatim.lua")
% (find-dednat6 "tug-slides.tex" "verbatim")
% (find-dednat6 "tug-slides.tex" "verbatim" "\\def\\verbahbox")
\def\defvbt#1#2{\expandafter\def\csname vbt-#1\endcsname{#2}}
\def\ifvbtundefined#1{\expandafter\ifx\csname vbt-#1\endcsname\relax}
\def\vbt#1{\ifvbtundefined{#1}
    \errmessage{UNDEFINED VBT: #1}
  \else
    \csname vbt-#1\endcsname
  \fi
}
\def\vbthbox#1{\hbox{\tt#1}}
\def\vbtbgbox#1{\bgcolorhbox{YellowOrangeLight}{#1}}


% «sa-and-ga»  (to ".sa-and-ga")
% (find-es "tex" "sa-and-ga")
% Example: \sa{01}{foo}
%          \ga{01}
\def\sa#1#2{\expandafter\def\csname myarg#1\endcsname{#2}}
\def\ga#1{\csname myarg#1\endcsname}

% «maximablue-red»  (to ".maximablue-red")
% Used by: (find-angg "LUA/Maxima2.lua")
%     See: (find-es "tex" "rlap-and-llap")
\def\hboxthreewidth {6cm}
\def\hboxthreeindent{\par\indent}
\def\hboxthree#1#2#3{\hboxthreeindent\hbox to \hboxthreewidth{\rlap{#1}\hss#2\hss\llap{#3}}}
\def\maximablue   #1{\hboxthree{\color{blue}\tt#1}{}{}}
\def\maximared  #1#2{\hboxthree{\color{red}\tt#1}{$\color{red}\displaystyle #2$}{}}







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