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view wisdom/categorical product @ 11231:c3d85315f276
<fizzie> ` sed -e \'s|^ ||\' < \'wisdom/fun fact \' > \'wisdom/fun fact\'; rm \'wisdom/fun fact \'
author | HackBot |
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date | Wed, 01 Nov 2017 19:38:34 +0000 |
parents | 00af4aaadf2c |
children |
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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 unique morphism w:X->C such that u=wp and v=wq.