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I have a commutative diagram
\[\textbf{As} ~\bar{\longrightarrow} \arrow{d} & \textbf{Lie} \arrow{d} \\
\textbf{Dias}~ \bar{\longrightarrow} &\textbf{ Leib}
\end{tikzcd}
\]
be after running, it does not provide a correct diagram. Can you please help me to correct that?
Do you mean something like this?
\documentclass{article}
\usepackage{amsmath}
\usepackage{tikz-cd}
\begin{document}
\[
\begin{tikzcd}
\mathbf{As} \arrow[r,"-"] \arrow[d] & \mathbf{Lie} \arrow[d] \\
\mathbf{Dias} \arrow[r,"-"] & \mathbf{Leib}
\end{tikzcd}
\]
\end{document}
\begin{tikzcd}