Mercurial > repo

view wisdom/categorical product @ 9277:a44c751f1302

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
<oerjan> learn i,i is short for "I have wasps in my underwear, and want to distract myself by saying"
author HackBot
date Fri, 14 Oct 2016 01:39:27 +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.