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
As lack of space forbids my making here a more extended comparison of the native symbols, I shall but point out how the tau, in juxtaposition and contraposition painted in two colors, produces fig.
From The Fundamental Principles of Old and New World Civilizations by Nuttall, Zelia
The only mode usually recognized of converting a particular negative proposition, is in the form, Some A is not B, therefore something which is not B is A; and this is termed conversion by contraposition.
From A System Of Logic, Ratiocinative And Inductive by Mill, John Stuart
The only mode usually recognised of converting a particular negative proposition, is in the form, Some A is not B, therefore, something which is not B is A; and this is termed conversion by contraposition.
From A System of Logic: Ratiocinative and Inductive 7th Edition, Vol. I by Mill, John Stuart
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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.
