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<Moon__> mkx sequ//echo {"$1".."$2"} | sed "s/,//g"
author HackBot
date Sun, 29 May 2016 04:26:56 +0000
parents ca4257b9b1e7
children
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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.