I am pretty sure this is out there on this site, but I did not find it after searching.

How to draw a downward


in a commutative tikzcddiagram?

  • 2
    Try \documentclass{article} \usepackage{tikz-cd} \begin{document} \begin{tikzcd} X \arrow[d,Rightarrow]\\ Y \end{tikzcd} \end{document} and please make the last part of your question clearer.
    – user121799
    Oct 19, 2018 at 10:10
  • 2
    Can you add an image, please to have a clear idea?
    – Sebastiano
    Oct 19, 2018 at 11:28

1 Answer 1


Seems like many users do not really understand your second request. Even though my crystal ball got stolen, I am guessing that you are looking for \arrow[d,Rightarrow] and \arrow[d,dash].

\begin{tikzcd} X \arrow[d,Rightarrow] & A \arrow[d,dash]\\ 
Y & B

enter image description here

  • 2
    +1 for linked image
    – albert
    Oct 19, 2018 at 14:58

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