The Semantics of Predicate Logic as a Programming Language
M. H. van Emden, Robert Kowalski · Journal of the ACM · 1976
Sentences in first-order predicate logic can be usefully interpreted as programs. In this paper the operational and fixpoint semantics of predicate logic programs are defined, and the connections with the proof theory and model theory of logic are investigated. It is concluded that operational semantics is a part of proof theory and that fixpoint semantics is a special case of model-theoretic semantics.