Minimal bounded lattices with an antitone involution the complemented elements of which do not form a sublattice
Ivan Chajda, Helmut Länger · Discussiones Mathematicae - General Algebra and Applications · 2008
Bounded lattices with an antitone involution the complemented elements of which do not form a sublattice must contain two complemented elements such that not both their join and their meet are complemented. We distinguish (up to symmetry) eight cases and in each of these cases we present such a lattice of minimal cardinality.