view wisdom/categorical product @ 11256:25af74e94d40

<oerjan> learn This is something shachaf likes to talk about. We\'re often unsure what this is, though.
author HackBot
date Sat, 09 Dec 2017 11:43:01 +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.