A diagram depicting two functors and a natural transformation between them.
<p>\begin{tikzcd}[sep=large]
</p>
<pre> \mathbf{C}
   \arrow[r, bend left, "F"{name=F}]
   \arrow[r, swap, bend right, "G"{name=G}]
 &amp; \mathbf{D} \arrow[Rightarrow, from=F, to=G, "\alpha"]
</pre>
\end{tikzcd
<a href="//commons.wikimedia.org/w/index.php?title=User:Siddharthist&amp;action=edit&amp;redlink=1" class="new" title="User:Siddharthist (page does not exist)">Siddharthist</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>