- Technically, a formula of the propositional calculus that is true whatever the truth-value assigned to its constituent propositional variables. (A tautology is thus valid, or true in all interpretations .) In more informal contexts a tautology is often thought of as a proposition that ‘says nothing’, or merely repeats a definition.
Philosophy dictionary. Academic. 2011.
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Tautology — may refer to: Tautology (rhetoric), using different words to say the same thing even if the repetition does not provide clarity. Tautology also means a series of self reinforcing statements that cannot be disproved because the statements depend… … Wikipedia
Tautology — Tau*tol o*gy, n. [L. tautologia, Gr. ?: cf. F. tautologie.] (Rhet.) A repetition of the same meaning in different words; needless repetition of an idea in different words or phrases; a representation of anything as the cause, condition, or… … The Collaborative International Dictionary of English
tautology — is the repetition of the same idea or meaning in a phrase or sentence, as in a free gift (all gifts are free), a new innovation, and to return again. Some tautologies are contained within a small group of words such as a noun phrase (e.g. future… … Modern English usage
tautology — I noun battology, duplication, loquacity, pleonasm, profuseness, redundancy, repetition, superfluousness, surfeit, verbiage, verbosity II index redundancy Burton s Legal Thesaurus. William C. Burton. 2006 … Law dictionary
tautology — (n.) 1570s, from L.L. tautologia representation of the same thing (c.350), from Gk. tautologia, from tautologos repeating what has been said, from tauto the same + logos saying, related to legein to say (see LECTURE (Cf. lecture) (n.)) … Etymology dictionary
tautology — *verbiage, redundancy, pleonasm, circumlocution, periphrasis … New Dictionary of Synonyms
tautology — ► NOUN (pl. tautologies) ▪ the saying of the same thing over again in different words, considered as a fault of style (e.g. they arrived one after the other in succession). DERIVATIVES tautological adjective tautologous adjective. ORIGIN from… … English terms dictionary
tautology — [tô täl′ə jē] n. pl. tautologies [LL tautologia < Gr: see TAUTO & LOGY] 1. a) needless repetition of an idea in a different word, phrase, or sentence; redundancy; pleonasm (Ex.: “necessary essentials”) b) an instance of such repetition 2.… … English World dictionary
tautology — tautological /tawt l oj i keuhl/, tautologic, tautologous /taw tol euh geuhs/, adj. tautologically, tautologously, adv. tautologist, n. /taw tol euh jee/, n., pl. tautologies. 1. needless repetition of an idea, esp. in wo … Universalium
tautology — noun /tɔˈtɒl.ə.dʒi/ a) redundant use of words It is tautology to say, Forward Planning . b) An expression that features tautology. The expression raze to the ground is a tautology, since the word raze includes the notion to the ground . Ant … Wiktionary