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<izabera> ` echo tr A-Z\xc3\x98 a-z\xc3\xb8 > bin/lowercase
author HackBot
date Wed, 29 Jun 2016 00:16:56 +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.