The study of lattice varieties is a field that has experienced rapid growth in the last 30 years, but many of the interesting and deep results discovered in tha

This book presents the foundations of a general theory of algebras. Often called “universal algebra”, this theory provides a common framework for all algebr

The book is meant to serve two purposes. The first and more obvious one is to present state of the art results in algebraic research into residuated structures

In the first half of the nineteenth century, George Boole's attempt to formalize propositional logic led to the concept of Boolean algebras. While investigating

This book started with Lattice Theory, First Concepts, in 1971. Then came General Lattice Theory, First Edition, in 1978, and the Second Edition twenty years la