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tautology

tau·tol·o·gy / tôˈtäləjē/ • n. (pl. -gies) the saying of the same thing twice in different words, generally considered to be a fault of style (e.g., they arrived one after the other in succession). ∎  a phrase or expression in which the same thing is said twice in different words. ∎  Logic a statement that is true by necessity or by virtue of its logical form. DERIVATIVES: tau·to·log·i·cal / ˌtôtlˈäjikəl/ adj. tau·to·log·i·cal·ly / ˌtôtlˈäjik(ə)lē/ adv. tau·tol·o·gist / -jist/ n. tau·tol·o·gize / -ˌjīz/ v. tau·tol·o·gous / -gəs/ adj.

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"tautology." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 18 Aug. 2017 <http://www.encyclopedia.com>.

"tautology." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (August 18, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/tautology-1

"tautology." The Oxford Pocket Dictionary of Current English. . Retrieved August 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/tautology-1

tautology

tautology The use of words to repeat (unnecessarily) the same statement or meaning. For example, the statement that ‘Britain is an island and surrounded by water’ is a tautology, since islands are by definition so described. Tautological explanations are similarly true by definition, or circular, and therefore unfalsifiable. Sociological explanations which locate the origins of social institutions in their effects tend to take this form. Thus, for example, some early functionalist anthropologists (including Bronislaw Malinowski) were prone to argue that, because certain (exotic) social practices (such as witchcraft) existed, then they must have a social function—and that one could assume they had that function precisely because the practices themselves existed.

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"tautology." A Dictionary of Sociology. . Encyclopedia.com. 18 Aug. 2017 <http://www.encyclopedia.com>.

"tautology." A Dictionary of Sociology. . Encyclopedia.com. (August 18, 2017). http://www.encyclopedia.com/social-sciences/dictionaries-thesauruses-pictures-and-press-releases/tautology

"tautology." A Dictionary of Sociology. . Retrieved August 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/social-sciences/dictionaries-thesauruses-pictures-and-press-releases/tautology

tautology

tautology A law of logic, in the form of a proposition, that describes a universal truth; no matter what values are assigned to the variables in the proposition the result is always true. An example from the propositional calculus is (PQ)′ = P′ ∧ Q

where ∨ and ∧ are the or and and operators and P′ is the negation of P. In the truth table for a tautology the final result column contains only the value true. If the final column contains only the value false, then a contradiction has been identified.

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"tautology." A Dictionary of Computing. . Encyclopedia.com. 18 Aug. 2017 <http://www.encyclopedia.com>.

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"tautology." A Dictionary of Computing. . Retrieved August 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/tautology

TAUTOLOGY

TAUTOLOGY, also PLEONASM. A term in RHETORIC for unnecessary and ineffective REPETITION, usually with words that add nothing new: She was alone by herself. Many tautological (or tautologous) expressions occur in everyday usage. The tautology in some is immediately apparent: all well and good; cool, calm, and collected; free, gratis, and for nothing. In others, it is less obvious, because they contain archaic elements: by hook or by crook; a hue and cry; not a jot or tittle; null and void; rack and ruin. Compare CIRCUMLOCUTION, REDUNDANCY.

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"TAUTOLOGY." Concise Oxford Companion to the English Language. . Encyclopedia.com. 18 Aug. 2017 <http://www.encyclopedia.com>.

"TAUTOLOGY." Concise Oxford Companion to the English Language. . Encyclopedia.com. (August 18, 2017). http://www.encyclopedia.com/humanities/encyclopedias-almanacs-transcripts-and-maps/tautology

"TAUTOLOGY." Concise Oxford Companion to the English Language. . Retrieved August 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/encyclopedias-almanacs-transcripts-and-maps/tautology

tautology

tautology XVI. — late L. tautologia — Gr. tautologíā, f. tautológos repeating what has been said (whence tautologous XVIII), f. tautó the same + -logos saying; see -LOGY.

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"tautology." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. 18 Aug. 2017 <http://www.encyclopedia.com>.

"tautology." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. (August 18, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/tautology-2

"tautology." The Concise Oxford Dictionary of English Etymology. . Retrieved August 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/tautology-2

tautology

tautology the saying of the same thing twice over in different words, generally considered to be a fault of style (e.g. they arrived one after the other in succession).

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"tautology." The Oxford Dictionary of Phrase and Fable. . Encyclopedia.com. 18 Aug. 2017 <http://www.encyclopedia.com>.

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"tautology." The Oxford Dictionary of Phrase and Fable. . Retrieved August 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/tautology

tautology

tautology •haji • algae • Angie •argy-bargy, Panaji •edgy, sedgy, solfeggi, veggie, wedgie •cagey, stagy •mangy, rangy •Fiji, gee-gee, squeegee •Murrumbidgee, ridgy, squidgy •dingy, fringy, mingy, stingy, whingy •cabbagy • prodigy • effigy • villagey •porridgy • strategy • cottagey •dodgy, podgy, splodgy, stodgy •pedagogy •Georgie, orgy •ogee • Fuji •bhaji, budgie, pudgy, sludgy, smudgy •bulgy •bungee, grungy, gungy, scungy, spongy •allergy, analogy, genealogy, hypallage, metallurgy, mineralogy, tetralogy •elegy •antilogy, trilogy •aetiology (US etiology), amphibology, anthology, anthropology, apology, archaeology (US archeology), astrology, biology, campanology, cardiology, chronology, climatology, cosmology, craniology, criminology, dermatology, ecology, embryology, entomology, epidemiology, etymology, geology, gynaecology (US gynecology), haematology (US hematology), hagiology, horology, hydrology, iconology, ideology, immunology, iridology, kidology, meteorology, methodology, musicology, mythology, necrology, neurology, numerology, oncology, ontology, ophthalmology, ornithology, parasitology, pathology, pharmacology, phraseology, phrenology, physiology, psychology, radiology, reflexology, scatology, Scientology, seismology, semiology, sociology, symbology, tautology, technology, terminology, theology, topology, toxicology, urology, zoology • eulogy • energy • synergy • apogee • liturgy • lethargy •burgee, clergy •zymurgy • dramaturgy

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"tautology." Oxford Dictionary of Rhymes. . Encyclopedia.com. 18 Aug. 2017 <http://www.encyclopedia.com>.

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"tautology." Oxford Dictionary of Rhymes. . Retrieved August 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/tautology-0