Multiple-Valued Logic: An Introduction and Overview

MULTIPLE-VALUED logic has been a subject of research work for many years [1], [2]. Until the late 1960´s most of the reported work was of a theoretical nature, leaving little impact on the firmly established binary approaches in the design of digital systems. Then, as LSI technology proceeded to develop rapidly, it became apparent that multiple-valued logic offers not only a rich logic structure, but also a considerable potential for application in physical systems [2], [3].