The operating logic may be diagrammed to different levels of completeness of information. Whatever the level of completeness, the diagram communicates functional information explicitly to the degree ...

In 1941, Tarski published an abstract, finitely axiomatized version of the theory of binary relations, called the theory of relation algebras, He asked whether every model of his abstract theory could ...

Journal of Logic, Language, and Information, Vol. 6, No. 4, Special Issue on Modal Logic and Dynamics (Oct., 1997), pp. 441-452 (12 pages) In this paper we prove that the principles in the language ...