predicate expression

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• Predicate (grammar) — In traditional grammar, a predicate is one of the two main parts of a sentence (the other being the subject, which the predicate modifies). In current linguistic semantics, a predicate is an expression that can be true of something. Thus, the… …   Wikipedia

• Predicate functor logic — In mathematical logic, predicate functor logic (PFL) is one of several ways to express first order logic (formerly known as predicate logic) by purely algebraic means, i.e., without quantified variables. PFL employs a small number of algebraic… …   Wikipedia

• predicate — A predicate is any expression that is capable of connecting with one or more singular terms to make a sentence. A predicate expresses a condition that the entities referred to may satisfy, in which case the resulting sentence will be true. For… …   Philosophy dictionary

• Predicate (logic) — Sometimes it is inconvenient or impossible to describe a set by listing all of its elements. Another useful way to define a set is by specifying a property that the elements of the set have in common. The notation P(x) is used to denote a… …   Wikipedia

• predicate calculus — The logical calculus in which the expressions include predicate letters, variables, and quantifiers, names, and operation letters, as well as the expressions for truth functions and the propositional variables of the propositional calculus . The… …   Philosophy dictionary

• Syntactic predicate — A syntactic predicate specifies the syntactic validity of applying a production in a formal grammar and is analogous to a semantic predicate that specifies the semantic validity of applying a production. It is a simple and effective means of… …   Wikipedia

• Parsing expression grammar — A parsing expression grammar, or PEG, is a type of analytic formal grammar that describes a formal language in terms of a set of rules for recognizing strings in the language. A parsing expression grammar essentially represents a recursive… …   Wikipedia

• Ground 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… …   Wikipedia

• Opaque predicate — In computer programming, an opaque predicate is a predicate an expression that evaluates to either true or false for which the outcome is known by the programmer a priori, but which, for a variety of reasons, still needs to be evaluated at run… …   Wikipedia

• n-place predicate — A predicate thought of as an open sentence that requires n variables to be either bound or substituted by a referring expression to make a closed sentence. Thus ‘ x is the daughter of y ’ is a two place predicate, that can be turned into a… …   Philosophy dictionary

• Aristotle’s logic and metaphysics — Alan Code PART 1: LOGICAL WORKS OVERVIEW OF ARISTOTLE’S LOGIC The Aristotelian logical works are referred to collectively using the Greek term ‘Organon’. This is a reflection of the idea that logic is a tool or instrument of, though not… …   History of philosophy