Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun mathematics A subset of a monoid that is itself a monoid

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From sub- +‎ monoid

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Examples

  • The monoids of natural numbers and of even integers are both submonoids of the monoid of integers under addition, but only the latter submonoid is a subgroup, being closed under negation, unlike the natural numbers.

    Algebra Pratt, Vaughan 2007

  • A monoid H is a submonoid of a monoid G when it is a subsemigroup of G that includes the identity of G. 2.2 Groups

    Algebra Pratt, Vaughan 2007

  • A submonoid of M is a subset S of M which contains the identity element addition form a commutative monoid, with zero as identity element.

    Citizendium, the Citizens' Compendium - Recent changes [en] 2008

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