EntityQ3022116· pop 5· linked from 27 articlesTransformation semigroupSign in to saveConnectionsmonoidEntityfunction compositionEntitysemigroupEntitycomputer scienceEntityalgebraEntityInternational Standard Book NumberEntityfunctionEntitydigital object identifierEntitygroup theoryEntityOxford University PressEntityQ118398EntityCambridge University PressEntityautomatonEntityautomata theoryEntityidentity functionEntityAmerican Mathematical SocietyEntityclosureEntitysymmetric groupEntityfinite groupEntityendomorphismEntityCategoriesSemigroup theory