contraposition

[ kon-truh-puh-zish-uhn ]
/ ˌkɒn trə pəˈzɪʃ ən /
SEE SYNONYMS FOR contraposition ON THESAURUS.COM

noun

placement opposite or against.
opposition, contrast, or antithesis.
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.”

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Origin of contraposition

First recorded in 1545–55, contraposition is from the Late Latin word contrāposition- (stem of contrāpositiō). See contra1, position

Words nearby contraposition

contranym, contraoctave, contraorbital, contraplete, contrapose, contraposition, contrapositive, contrapposto, contraption, contrapuntal, contrapuntist
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Words related to contraposition

antithesis, contradiction, contradistinction, contrariety, contrariness, contrast, polarity, oppositeness

Example sentences from the Web for contraposition

British Dictionary definitions for contraposition

contraposition
/ (ˌkɒntrəpəˈzɪʃən) /

noun

the act of placing opposite or against, esp in contrast or antithesis
logic the derivation of the contrapositive of a given categorial proposition
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012