I'm trying to make a commutative diagram with tikzcd
.
Here's what I get:
I want the hook from B to A to be upside down and the /simeq
symbol over the arrow from C to D.
Sample code:
\documentclass[a4paper]{article}
\usepackage{amsmath}
\usepackage{tikz-cd}
\begin{document}
\[
\begin{tikzcd}
A & B \arrow[l, hookrightarrow] \\
D \arrow[u, hookrightarrow] & C \arrow[l, "\simeq"]
\arrow[u, hookrightarrow]
\end{tikzcd}
\]
\end{document}