view wisdom/categorical product @ 5201:c5e4b3f4ec1a

<Taneb> echo "Tanebventions include D-modules, Chu spaces, automatic squirrel feeders, the torus, Stephen Wolfram, Go, weetoflakes, persistence, and this sentence." > wisdom/tanebvention
author HackBot
date Tue, 23 Dec 2014 12:58:18 +0000
parents 74cae6b8f28c
children 00af4aaadf2c
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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.