Abstract
We show that any almost unitary subsemigroup of a semigroup is closed in the containing semigroup and that the class of all left [right] regular semigroups is closed. Finally, we show that every globally idempotent ideal satisfying a seminormal permutation identity of a supersaturated semigroup is supersaturated.
2010 AMS Mathematics Subject Classification:
Notes
Communicated by V. Gould.