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He drew from Gottfried Wilhelm Leibniz' conceptualization of the event, which holds that "the predicate is a verb, and that the verb is irreducible to the copula and to the attribute." [17] The thinker posited that "the world itself is an event and, as an incorporeal (=virtual) predicate, the world must be included in every subject."
First-order logic—also called predicate logic, predicate calculus, quantificational logic—is a collection of formal systems used in mathematics, philosophy, linguistics, and computer science. First-order logic uses quantified variables over non-logical objects, and allows the use of sentences that contain variables.
He states that by taking the subject of God with all its predicates and then asserting that God exists, "I add no new predicate to the conception of God". He argues that the ontological argument works only if existence is a predicate; if this is not so, he claims the ontological argument is invalidated, as it is then conceivable a completely ...
Philosophy of logic is the area of philosophy that studies the scope and nature of ... It is based on 20 axioms of propositional logic, first-order predicate logic, ...
In the true statement “Man is a rational animal,” the predicate is convertible with the subject and states its essence; therefore, “rational animal” is the definition of a man. The statements “Man is an animal” and “Man is rational,” while true, are not convertible; their predicate terms, however, are parts of the definition and ...
Predicate or predication may refer to: Predicate (grammar), in linguistics; Predication (philosophy) several closely related uses in mathematics and formal logic: Predicate (mathematical logic) Propositional function; Finitary relation, or n-ary predicate; Boolean-valued function; Syntactic predicate, in formal grammars and parsers; Functional ...
Philosophy portal; Glossary of logic; Józef Maria Bocheński; List of notation used in Principia Mathematica; List of mathematical symbols; Logic alphabet, a suggested set of logical symbols; Logic gate § Symbols; Logical connective; Mathematical operators and symbols in Unicode; Non-logical symbol; Polish notation; Truth function; Truth table
While teaching an introductory course in 1940, Quine discovered that extant texts for philosophy students did not do justice to quantification theory or first-order predicate logic. Quine wrote this book in 6 weeks as an ad hoc solution to his teaching needs.