./math/hs-contravariant, Contravariant functors

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Branch: pkgsrc-2021Q1, Version: 1.5.2, Package name: hs-contravariant-1.5.2, Maintainer: pho

Contravariant functors, sometimes referred to colloquially as
cofunctor, even though the dual of a functor is just a functor. As
with functor the definition of contravariant for a given ADT is
unambiguous.

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SHA1: 21782e04bd877921b13ba9cbf5a83132a6260bf8
RMD160: 142d8aa32515fe8db59c3ecde43b337c72343e75
Filesize: 15.631 KB

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