出典:Wikipedia
出典:『Wikipedia』 (2011/05/17 13:40 UTC 版)
In the mathematical discipline of order theory, a complemented lattice is a bounded lattice in which every element a has a complement, i.e. an element b satisfying a ∨ b = 1 and a ∧ b = 0. A relatively complemented lattice is a lattice such that every interval [c, d] is complemented. Complements need not be unique.