Mercurial > repo
view wisdom/categorical product @ 6246:5cd435068538
<FireFly> learn 9 is a free smalltalk
author | HackBot |
---|---|
date | Mon, 23 Nov 2015 10:49:10 +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.