This book presents a systematic treatment of deductive aspects and structures of fuzzy logic understood as many valued logic sui generis. It aims to show that fuzzy logic as a logic of imprecise (vague) propositions does have well-developed formal foundations and that most things usually named ‘fuzzy inference’ can be naturally understood as logical deduction. It is for mathematicians, logicians, computer scientists, specialists in artificial intelligence and knowledge engineering, and developers of fuzzy logic.

/ Part INTRODUCTION Fuzziness is not a priori an obvious concept and demands some explanation. "Fuzziness" is what Black (NF) calls "vagueness" when ...

This book provides a synthesis of four versions of program semantic—srelational semantics, predicate transformer semantics, information systems, and domain theory—showing, through an exhaustive case study analysis, that it is possible to do back-and-forth translation from any of these versions of program semantics into any of the others, and demonstrating that while there are many variations of each, in principle they may be thought of as intertranslatable.