A semigroup is an algebraic structure consisting of a nonempty set and an associative binary operation that is closed on that set.
An example is the natural numbers together the sum operation. Another the rectangular matrixes and its sum.
Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.