predicate function
121Ground expression — In mathematical logic, a ground term of a formal system is a term that does not contain any variables at all, and a closed term is a term that has no free variables. In first order logic all closed terms are ground terms, but in lambda calculus… …
122glossary — Grammatical terms are, to quote Frank Palmer, largely notional and often extremely vague. In I went swimming, for instance, swimming is a present participle; but in Swimming is good for you, it is a gerund. Because such distinctions are for… …
123Relation (mathematics) — This article sets out the set theoretic notion of relation. For a more elementary point of view, see binary relations and triadic relations. : For a more combinatorial viewpoint, see theory of relations. In mathematics, especially set theory, and …
124Fuzzy logic — is a form of multi valued logic derived from fuzzy set theory to deal with reasoning that is approximate rather than precise. Just as in fuzzy set theory the set membership values can range (inclusively) between 0 and 1, in fuzzy logic the degree …
125Natural deduction — In logic and proof theory, natural deduction is a kind of proof calculus in which logical reasoning is expressed by inference rules closely related to the natural way of reasoning. This contrasts with the axiomatic systems which instead use… …
126List of Boolean algebra topics — This is a list of topics around Boolean algebra and propositional logic. Contents 1 Articles with a wide scope and introductions 2 Boolean functions and connectives 3 Examples of Boolean algebras …
127Aristotle — /ar euh stot l/, n. 384 322 B.C., Greek philosopher: pupil of Plato; tutor of Alexander the Great. * * * born 384, Stagira died 322 BC, Chalcis Greek philosopher and scientist whose thought determined the course of Western intellectual history… …
128Non-classical logic — Non classical logics (and sometimes alternative logics) is the name given to formal systems which differ in a significant way from standard logical systems such as propositional and predicate logic. There are several ways in which this is done,… …
