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Cosa (chi) è logical formula - definizione
FINITE SEQUENCE OF SYMBOLS FROM A GIVEN ALPHABET THAT IS PART OF A FORMAL LANGUAGE
Well formed formula; Well-formed formulas; Formula (mathematical logic); Well formed formulae; Well-formed formulae; Subformula; Layman Allen; Quantifier-free formula; Formula (logic); Logical expression; Logical formula; Formula (logics)
Well-formed formula
In mathematical logic, propositional logic and predicate logic, a well-formed formula, abbreviated WFF or wff, often simply formula, is a finite sequence of symbols from a given alphabet that is part of a formal language.Formulas are a standard topic in introductory logic, and are covered by all introductory textbooks, including Enderton (2001), Gamut (1990), and Kleene (1967) A formal language can be identified with the set of formulas in the language.
logical positivism
ASSERTION THAT ONLY STATEMENTS VERIFIABLE THROUGH EMPIRICAL OBSERVATION ARE MEANINGFUL
Logical empiricism; Logical positivists; Logical Positivist; Logical Positivism; Neopositivism; Neo-positivism; Logical positivist; Logical empiricist; Logical Empiricism; Vienna positivism; Protocol statement; Basic statement; Observational statement
(also logical empiricism)
¦ noun a form of positivism which considers that the only meaningful philosophical problems are those which can be solved by logical analysis.
Logical positivism
ASSERTION THAT ONLY STATEMENTS VERIFIABLE THROUGH EMPIRICAL OBSERVATION ARE MEANINGFUL
Logical empiricism; Logical positivists; Logical Positivist; Logical Positivism; Neopositivism; Neo-positivism; Logical positivist; Logical empiricist; Logical Empiricism; Vienna positivism; Protocol statement; Basic statement; Observational statement
Logical positivism, later called logical empiricism, and both of which together are also known as neopositivism, was a movement in Western philosophy whose central thesis was the verification principle (also known as the verifiability criterion of meaning). This theory of knowledge asserted that only statements verifiable through direct observation or logical proof are meaningful in terms of conveying truth value, information or factual content.
Wikipedia
Well-formed formula
In mathematical logic, propositional logic and predicate logic, a well-formed formula, abbreviated WFF or wff, often simply formula, is a finite sequence of symbols from a given alphabet that is part of a formal language. A formal language can be identified with the set of formulas in the language.
A formula is a syntactic object that can be given a semantic meaning by means of an interpretation. Two key uses of formulas are in propositional logic and predicate logic.
