view wisdom/morphism @ 5326:251f5b3167b6

<izabera> ` echo harry ron hermione >> bin/emptylist
author HackBot
date Thu, 23 Apr 2015 06:53:55 +0000
parents c3f8b4762fa7
children a655017e4390
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A morphism is just a natural transformation between two functors on 1.