validity
In its primary meaning it is arguments that are valid or invalid, according to whether the conclusion follows from the premises. Premises and conclusions themselves are not valid or invalid, but true or false. In model theory a formula is called valid, when it is true in all interpretations.

Philosophy dictionary. . 2011.

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  • validity — va‧lid‧i‧ty [vəˈlɪdti] noun [uncountable] LAW when a document is legally acceptable: • The shareholder group may question the legal validity of the merger in court. ˈface ˌvalidity STATISTICS figures, results, or data with face validity appear… …   Financial and business terms

  • Validity — Va*lid i*ty, n. [Cf. F. validit[ e], L. validitas strength.] [1913 Webster] 1. The quality or state of being valid; strength; force; especially, power to convince; justness; soundness; as, the validity of an argument or proof; the validity of an… …   The Collaborative International Dictionary of English

  • validity — I noun authenticity, authority, correctness, force, forcefulness, genuineness, gravitas, lawfulness, legal force, legality, legitimacy, legitimateness, meritoriousness, pondus, potency, power, puissance, reality, realness, significance, soundness …   Law dictionary

  • validity — 1550s, from M.Fr. validité, from L. validitatem (nom. validitas) strength, from validus (see VALID (Cf. valid)) …   Etymology dictionary

  • validity — [n] genuineness, lawfulness authority, cogency, effectiveness, efficacy, force, foundation, gravity, grounds, legality, legitimacy, persuasiveness, point, potency, power, punch, right, soundness, strength, substance, validness, weight; concept… …   New thesaurus

  • validity — [və lid′ə tē] n. pl. validities [Fr validité < L validitas, strength] the state, quality, or fact of being valid in law or in argument, proof, authority, etc …   English World dictionary

  • validity — The property of being genuine, a true reflection of attitudes, behaviour, or characteristics. A measure (such as a question, series of questions, or test) is considered valid if it is thought to measure the concept or property which it claims to… …   Dictionary of sociology

  • validity — noun ADJECTIVE ▪ great ▪ equal ▪ Don t you think that both views have equal validity? ▪ doubtful, dubious, questionable ▪ …   Collocations dictionary

  • validity — Legal sufficiency, in contradistinction to mere regularity @ validity of a treaty The term validity, as applied to treaties, admits of two descriptions necessary and voluntary. By the former is meant that which results from the treaties having… …   Black's law dictionary

  • Validity — The term validity (also called logical truth, analytic truth, or necessary truth) as it occurs in logic refers generally to a property of particular statements and deductive arguments. Although validity and logical truth are synonymous concepts,… …   Wikipedia

  • validity — [[t]vəlɪdɪti[/t]] N UNCOUNT: usu the N of n The validity of something such as a result or a piece of information is whether it can be trusted or believed. → See also valid Shocked by the results of the elections, they now want to challenge the… …   English dictionary

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