view category.pdf @ 416:e4a2544d468c

if we add invserse, there no nothing part, it generates extra commutaivitiy in nat, which is no good so A [ g o f ] should be nothing in codomain Category
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Wed, 23 Mar 2016 22:47:32 +0900
parents 6626a7cd9129
children
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