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<shachaf> ` rm -rf canary; mk \'canary//cat: canary: No such file or directory\'
author HackBot
date Wed, 02 Nov 2016 00:10:36 +0000
parents ca4257b9b1e7
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A free structure is one that has no nontrivial identities, except algebraist phrase that in a much fancier way with morphisms.