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diff --git a/Master/texmf-dist/doc/latex/latex-graphics-companion/5-5-2.ltx b/Master/texmf-dist/doc/latex/latex-graphics-companion/5-5-2.ltx
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+\documentclass{ppex}
+\nonstopmode
+\usepackage [curve,arrow,frame]{xy}
+\pagestyle{empty}
+\setlength\textwidth{135.0pt}
+\begin{document}
+\ResetPreambleCommands
+\ReadyForTheFray
+\usepackage [curve,arrow,frame]{xy}
+\[\begin{xy} <1cm,0cm>:
+ (0,0)*+@{*}="a"*+!DL{\mathrm{A}},"a"
+ \ar@(dr,dl)
+ \ar@{~>} (2,0)*+@{*}="b"*+!DR{\mathrm{B}},"b"
+ \ar@(r,d) "b";"b"
+ \ar@{<->} "b";(2,2)*+@{*}="c"*+!UR{\mathrm{C}},"c"
+ \ar@(u,r) "c";"c" |*=<2pt>[o][F]{}
+ \ar@(ul,dr) "c"; (0,2)*+@{*}="d"*+!U{\mathrm{D}},"d"
+ \ar@(ul,ur) "d";"d"
+ \ar@{.>}@`{(-0.8,1.5),(0.,1.0),(-0.8,0.5)} "d";
+\end{xy}\]
+\end{document}