2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/99770Antichains of a finite bounded poset are assigned antichains playing a role analogous to that played by blockers in the Boolean lattice of all subsets of a finite set. Some properties of lattices of generalized blockers are discussed.9 pages; published versionCombinatorics06A06; 90C27text