Lattice ideal
= Lattice ideal
{wiki=Ideal_(order_theory)}
A lattice ideal is a nonempty downward-closed subset closed under finite joins. It is the order-dual notion to a <lattice filter>.
= Lattice ideal
{wiki=Ideal_(order_theory)}
A lattice ideal is a nonempty downward-closed subset closed under finite joins. It is the order-dual notion to a <lattice filter>.