Linked from
The 15 pages that link to Lattice (order theory), each with the reason it gives.
Boolean algebraNarrower topic: Meet and join in a Boolean algebra are precisely these two bounds.
Partial orderBroader topic: Lattices impose additional completeness on pairwise bounds.
InfimumRelated: Its pairwise meets are infima guaranteed by the lattice structure.
Upper boundNarrower topic: Joins generalize least upper bounds from subsets to pairs.
Order theoryBroader topic: Lattices add two fundamental operations to partial order.
Absorption lawNarrower topic: Its meet and join operations satisfy the absorption identities.