In this note, we give a description of Heyting algebras whose congruence lattices are Boolean. We show that a Heyting algebra L has the Boolean congruence lattice if and only if L is Boolean and every filter of L has the smallest element, which is the case if and only if L is Boolean with Con L similar or equal to(d) L (dually isomorphism).
机构:
Sobolev Institute of Mathematics, pr. Akademika Koptyuga 4, Novosibirsk
Novosibirsk State University, ul. Pirogova 2, NovosibirskSobolev Institute of Mathematics, pr. Akademika Koptyuga 4, Novosibirsk