Mercurial > repo
view wisdom/categorical product @ 7048:16a4e7ca79ea
<oerjan> ` ln -s \'`learn\' wisdom/learn
author | HackBot |
---|---|
date | Mon, 29 Feb 2016 00:25:36 +0000 |
parents | 74cae6b8f28c |
children | 00af4aaadf2c |
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 morphism w:X->C such that u=wp and v=wq.