Jsou určeny všechny svazy s antitonní involucí s minimální kardinalitou, jejichž komplementární prvky tvoří podsvaz (cs)
There are determined lattices with antitonne involution of the smallest possible cardinality whose set of complemented elements forms a sublattice.
There are determined lattices with antitonne involution of the smallest possible cardinality whose set of complemented elements forms a sublattice. (en)