Every Fréchet lattice is a locally convex vector lattice.2 The set of all weak order units of a separable Fréchet lattice is a dense subset of its positive cone.3
Every Banach lattice is a Fréchet lattice.
Schaefer & Wolff 1999, pp. 234–242. - Schaefer, Helmut H.; Wolff, Manfred P. (1999). Topological Vector Spaces. GTM. Vol. 8 (Second ed.). New York, NY: Springer New York Imprint Springer. ISBN 978-1-4612-7155-0. OCLC 840278135. https://search.worldcat.org/oclc/840278135 ↩