Mercurial > repo
view wisdom/lens @ 36:4cb1612c02cf
<oerjan> learn Natural transformations are just morphisms in the category of functors
author | HackBot |
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date | Thu, 01 Mar 2012 00:11:23 +0000 |
parents | e037173e0012 |
children | 9908e830aa86 |
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A lens is a monoidal natural transformation between higher-order coalgebra functors