Haskell 98 semigroups
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.
Source Files (show merged sources derived from linked package)
|_link||0000000457457 Bytes||1464943204over 2 years ago|