Lattice theory foundation Por Gratzer, George A.

Available for University of the Philippines Diliman via SpringerLink. Click here to access

The congruences of a finite lattice a proof-by-picture approach Por Gratzer, George A.

General lattice theory Por Gratzer, George A.

Math into LaTeX an introduction to LaTeX and AMS-LaTex Por Gratzer, George A.

General lattice theory. Por Gratzer, George

Lattice theory first concepts and distributive lattices. Por Gratzer, George

Universal algebra. Por Gratzer, George A.