%%
%% The LaTeX Companion, 3ed
%%
%% Example 11-3-13 on page II-161 in "tikz-cd --- Commutative diagrams based on tikz".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3examargin}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{147.0pt}

%StartShownPreambleCommands
\usepackage{amsmath,tikz-cd}
\DeclareMathOperator\End{End}
%StopShownPreambleCommands

\begin{document}
\begin{tikzcd}
 S^{W_\Lambda}\otimes T \arrow[r, "j"] \arrow[d] &
        T \arrow[d, "\End P"]   \\
 (S \otimes T)/I  \arrow[r, equal] & (Z\otimes T)/J
\end{tikzcd}
\end{document}