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view wisdom/categorical product @ 11301:6fae3200f233
<int-e> ` mv {bin,lib}/morse-decode; echo \'#!/hackenv/bin/shebang_args_or_input /hackenv/lib/morse-decode\' > bin/morse-decode; chmod +x bin/morse-decode
| author | HackBot |
|---|---|
| date | Thu, 04 Jan 2018 23:48:26 +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.