Complements and quasicomplements in the lattice of subalgebras of \(P(\omega)\)
The authors study the structure of the lattice of subalgebras of the Boolean algebra P(\(\omega)\). In particular, they investigate which subalgebras have complements and quasicomplements. The main result is a necessary and sufficient condition for a countable subalgebra to have a complement.
scientific article; zbMATH DE number 3900829