Commit Graph

2 Commits

Author SHA1 Message Date
kili
1bdd8581ca Update to hs-semigroups-0.8.3.2.
From Dawe <dawedawe@gmx.de>.
2012-07-08 22:35:03 +00:00
kili
60060e9cb0 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.

ok ajacoutot@
2012-01-23 21:02:17 +00:00