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view wisdom/category theory @ 11288:9613519b554c
<int-e> learn 8/8/8/8/8/8/8/8 is an empty chess board in FEN notation.
author | HackBot |
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date | Sat, 30 Dec 2017 16:57:14 +0000 |
parents | 0854263cf284 |
children |
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In the theory of categories, category theory is a theory in the category of theories.