./math/hs-semigroups, Anything that associates

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Branch: pkgsrc-2019Q2, Version: 0.15.3nb7, Package name: hs-semigroups-0.15.3nb7, Maintainer: pho

In mathematics, a semigroup is an algebraic structure consisting of a set
together with an associative binary operation. A semigroup generalizes a
monoid in that there might not exist an identity element. It also
(originally) generalized a group (a monoid with all inverses) to a type
where every element did not have to have an inverse, thus the name
semigroup.

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RMD160: 099c12ac0ded615e7cbd103fbc680db5011f240c
Filesize: 11.607 KB

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