contraposition
Americannoun
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placement opposite or against.
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opposition, contrast, or antithesis.
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Logic. the inference drawn from a proposition by negating its terms and changing their order, as by inferring “Not B implies not A” from “A implies B.”
noun
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the act of placing opposite or against, esp in contrast or antithesis
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logic the derivation of the contrapositive of a given categorial proposition
Etymology
Origin of contraposition
First recorded in 1545–55, contraposition is from the Late Latin word contrāposition- (stem of contrāpositiō ). See contra 1, position
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
While perhaps a direct contraposition to point number one, it's worth remembering that Doc/Fest is a cross-platform, multimedia festival, as well as being a haven for the factually obsessed.
From The Guardian ● May 9, 2013
Paolo Rodari, who writes about the Vatican for the newspaper Il Foglio, said the episode depicted “a widening contraposition happening in the Vatican between Bertone and different clerics who do not like his politics.”
From New York Times ● Jan. 27, 2012
Conversion, 479. of complex propositions, 709. by contraposition, 516. illative, 481. by negation, 504. per accidens, 487. simple, 486. rules of, 482.
From Deductive Logic by Stock, St. George William Joseph
By this abrupt contraposition of body and mind as reciprocally independent substances, Descartes founded that dualism, as whose typical representative he is still honored or opposed.
From History of Modern Philosophy From Nicolas of Cusa to the Present Time by Falckenberg, Richard
Complex Proposition, 209. conversion of, 709. conversion by contraposition of, 728. conversion by negation of, 721. divided into conjunctive and disjunctive, 214. permutation of, 718.
From Deductive Logic by Stock, St. George William Joseph
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
