Lattice
Lattice
Has all finite products(meet, infimum)かつ、has all finite coproducts(join, supremum)なposetal category。
Bounded lattice
Terminal object(greatest element)とinitial object(least element)を持つlattice。
Heyting algebra
Has all exponentialsなbounded lattice。直観論理と本質的に等しい。