For questions about vector lattices (aka. Riesz spaces; a type of vector space equipped with a partial order), Banach lattices and similar topics.

A Riesz space, lattice-ordered vector space or vector lattice is a vector space with a partial order which

- is compatible with the structure of the vector space and
- forms a lattice.

Many of spaces used in functional analysis carry a natural ordering such that they form a vector lattice.

Banach lattices are an important class of Riesz spaces.