2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/70655The Alexander dual of an arbitrary meet-semilattice is described explicitly. Meet-distributive meet-semilattices whose Alexander dual is level are characterized.Commutative AlgebraCombinatorics13D02; 13H10; 06A12; 06D99Level rings arising from meet-distributive meet-semilatticestext