A lattice is a partial ordering of a set under a relation where all finite subsets have a least upper bound and a greatest lower bound. A complete lattice also has these for infinite subsets. Every finite lattice is complete. Some authors drop the requirement for greatest lower bounds.
Last updated: 1994-12-02
Try this search on Wikipedia, OneLook, Google
Nearby terms: complete « complete graph « complete inference system « complete lattice » complete metric space » completeness » complete partial ordering