English Semiring Cited by user David Eppstein on 26 Jun 2024 In abstract algebra, a semiring is an algebraic structure. It is a generalization of a ring, dropping the requirement that each element must have an additive inverse.
English Semimodule Cited by user 136.25.170.167 on 13 Aug 2022 In mathematics, a semimodule over a semiring R is like a module over a ring except that it is only a commutative monoid rather than an abelian group.