contrapositive
[ kon-truh-poz-i-tiv ]
/ ˌkɒn trəˈpɒz ɪ tɪv /
adjective
of or relating to contraposition.
noun
a contrapositive statement of a proposition.
Nearby words
- contraoctave,
- contraorbital,
- contraplete,
- contrapose,
- contraposition,
- contrapposto,
- contraption,
- contrapuntal,
- contrapuntist,
- contrarian
Origin of contrapositive
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for contrapositive
For a Disjunctive in I., of course, there is no Contrapositive.
Logic|Carveth ReadThere is an apparent exception to this when the real Middle in an argument is a contrapositive term, not-M.
Logic, Inductive and Deductive|William MintoIn the case of the I proposition the contrapositive is impossible, as infringing the main rule of conversion.
Every positive in thought has a contrapositive, and the positive and contrapositive are of the same kind.
Logic, Inductive and Deductive|William Minto
contrapositive
/ (ˌkɒntrəˈpɒzɪtɪv) /
adjective
placed opposite or against
noun
logic
- a conditional statement derived from another by negating and interchanging antecedent and consequent
- a categorial proposition obtained from another, esp validly, by any of a number of operations including negation, transferring the terms, changing their quality, and also possibly weakening from universal to particular
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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contrapositive
1858 (implied in contrapositively), from Latin contraposit-, past participle stem of contraponere (see contraposition) + -ive.
Online Etymology Dictionary, © 2010 Douglas Harper