[racket] set!: eval-ing to lvalues

From: Matthias Felleisen (matthias at ccs.neu.edu)
Date: Wed Apr 23 09:26:35 EDT 2014

On Apr 22, 2014, at 10:10 PM, Sean Kanaley <skanaley at gmail.com> wrote:

>  a hylomorphism is just an endofunctor in the Hask category of profunctorally-dual product monoids with just a hint of commutative free applicative comonads and a dash of F-algebra,


Do you have citations for that? 

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