Mercurial > repo

view wisdom/categorical product @ 8313:e9520ff253c8

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
<shachaf> learn A wegian is an equivalence class of #esoteric members. There are two main wegians, the Nor (from Finland) and the Glas (from Hexham).
author HackBot
date Sat, 04 Jun 2016 02:51:02 +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.