EntityQ5500266· pop 8· linked from 84 articlesfree monoidSign in to saveconcept in mathematicsConnectionsmonoidEntitylockEntitycomputer scienceEntityInternational Standard Book NumberEntitynatural numberEntityprime numberEntitysetEntitydigital object identifierEntitybitEntitycombinatoricsEntityabstract algebraEntitysequenceEntityassociativityEntityfundamental theorem of arithmeticEntityisomorphismEntitycardinalityEntityparallel computingEntityformal languageEntityCambridge University PressEntityfunction compositionEntityCategoriesCombinatorics on wordsFormal languagesFree algebraic structuresSemigroup theory