contrapositive

contrapositive
index adverse (opposite), antipathetic (oppositional), contradictory, contrary

Burton's Legal Thesaurus. . 2006

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  • contrapositive — [kän′trəpäz′ə tiv΄] n. Logic a proposition obtained by negating and transposing the terms of a given proposition [the contrapositive of “All A is B” is “All not B is not A”] …   English World dictionary

  • contrapositive — 1858 (implied in contrapositively), from L. contraposit , pp. stem of contraponere (see CONTRAPOSITION (Cf. contraposition)) + IVE (Cf. ive) …   Etymology dictionary

  • contrapositive — The contrapositive of a conditional ‘if p then q ’ is the conditional ‘if not q then not p ’. The two forms are equivalent. The contrapositive of a generalization ‘all As are B’ is the equivalent ‘all non Bs are non A’. This equivalence is… …   Philosophy dictionary

  • contrapositive — noun Date: 1870 a proposition or theorem formed by contradicting both the subject and predicate or both the hypothesis and conclusion of a given proposition or theorem and interchanging them < “if not B then not A ” is the contrapositive of “if A …   New Collegiate Dictionary

  • contrapositive — /kon treuh poz i tiv/, Logic. adj. 1. of or pertaining to contraposition. n. 2. a contrapositive statement of a proposition. [1855 60; CONTRAPOSIT(ION) + IVE] * * * …   Universalium

  • contrapositive — con•tra•pos•i•tive [[t]ˌkɒn trəˈpɒz ɪ tɪv[/t]] logic 1) of or pertaining to contraposition 2) a contrapositive statement • Etymology: 1855–60 …   From formal English to slang

  • contrapositive — noun the inverse of the converse of a given proposition …   Wiktionary

  • contrapositive — (Roget s Thesaurus II) noun Logic. That which is diametrically opposed to another: antipode, antipodes, antithesis, antonym, contrary, converse2, counter, opposite, reverse. Logic: contradictory. See SUPPORT …   English dictionary for students

  • contrapositive — con·tra·pos·i·tive …   English syllables

  • contrapositive — I. |kän.trə|päzəd.iv adjective Etymology: contraposition + ive : of, relating to, or characterized by contraposition II. noun logic : a proposition resulting from the operation of contraposition …   Useful english dictionary

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