Mercurial > repo
view wisdom/categorical product @ 11335:e88ffa6d7ded
<mroman> learn Fug is the opposite of Unfug (german: un-fug).
author | HackBot |
---|---|
date | Sun, 28 Jan 2018 17:10:27 +0000 |
parents | 00af4aaadf2c |
children |
line wrap: on
line source
categorical product is like when you have two category elements A and B then their product is element C iff there are two morphisms p:C->A and q:C->B such that for every element X and morphisms u:X->A and v:X->B there is a unique morphism w:X->C such that u=wp and v=wq.