SEMIGROUP
Semigroup
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 a semigroup need not have an identity element. It also generalized a group to a type where every element did not have to have an inverse, thus the name semigroup.The above text is a snippet from Wikipedia: Semigroup
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semigroup
Noun
- Any set for which there is a binary operation that is both closed and associative.
The above text is a snippet from Wiktionary: semigroup
and as such is available under the Creative Commons Attribution/Share-Alike License.