%% %% Ein Beispiel der DANTE-Edition %% Mathematiksatz mit LaTeX %% 2. Auflage %% %% Beispiel 09-03-1 auf Seite 178. %% %% Copyright (C) 2012 Herbert Voss %% %% It may be distributed and/or modified under the conditions %% of the LaTeX Project Public License, either version 1.3 %% of this license or (at your option) any later version. %% %% See http://www.latex-project.org/lppl.txt for details. %% %% %% ==== % Show page(s) 1 %% %% \documentclass[]{exaarticle} \pagestyle{empty} \setlength\textwidth{352.81416pt} \AtBeginDocument{\setlength\parindent{0pt}} \setcounter{equation}{0} \renewcommand\theequation{9.\arabic{equation}} \StartShownPreambleCommands \usepackage{amsmath,amscd} \StopShownPreambleCommands \begin{document} \begin{align} \begin{CD} R\times S\times T @>\text{restriction}>> S\times T \\ @V\text{proj}VV @VV\text{proj}V \\ R\times S @<<\text{inclusion}< S \end{CD} \end{align} \end{document}