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view wisdom/categorical product @ 12001:00218840bf5c draft
<wib_jonas> `` perl -pi -e \'s/^(url\\(1hackeso\\) -) .*/$1 print URL for a file in the hackenv hg repository and web access of the repository/\' share/whatis
author | HackEso <hackeso@esolangs.org> |
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date | Mon, 04 Nov 2019 12:21:00 +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.