contraposition — ● contraposition nom féminin Loi logique selon laquelle il est équivalent de dire que A implique B et que non B implique non A. contraposition [kɔ̃tʀapozisjɔ̃] n. f. ÉTYM. 1900, Larousse; de contra , et position. ❖ ♦ Didact. (log.). Déd … Encyclopédie Universelle
Contraposition — Con tra*po*si tion, n. [Pref. contra + position: cf. f. conterposition.] 1. A placing over against; opposite position. [Obs.] F. Potter. [1913 Webster] 2. (Logic) A so called immediate inference which consists in denying the original subject of… … The Collaborative International Dictionary of English
contraposition — I noun antagonism, antithesis, confrontation, confrontment, contradiction, contradistinction, contrariety, contrast, converse, counterpart, disagreement, disparity, dissimilarity, incompatibility, obverse, odds, opposite, opposite side,… … Law dictionary
contraposition — 1550s, from L.L. contrapositionem (nom. contrapositio), noun of action from contraposit , pp. stem of contraponere, from contra against (see CONTRA (Cf. contra)) + ponere to put, place (see POSITION (Cf. position)) … Etymology dictionary
contraposition — [kän΄trə pə zish′ən] n. a placing opposite or over against; antithesis; contrast … English World dictionary
Contraposition — For contraposition in the field of traditional logic, see Contraposition (traditional logic). For contraposition in the field of symbolic logic, see Transposition (logic). Contraposition is a logical relationship between two propositions, or… … Wikipedia
Contraposition — Proposition contraposée La contraposition (ou modus tollens) est un type de raisonnement logique consistant à affirmer une implication (« si A alors B ») et à poser ensuite la négation du conséquent (« or, non B ») pour en… … Wikipédia en Français
Contraposition — (Roget s Thesaurus) < N PARAG:Contraposition >N GRP: N 1 Sgm: N 1 contraposition contraposition opposition Sgm: N 1 polarity polarity Sgm: N 1 inversion inversion &c. 218 Sgm: N 1 opposite side opposite side Sgm: N 1 reverse … English dictionary for students
contraposition — noun Etymology: Late Latin contraposition , contrapositio, from Latin contraponere to place opposite, from contra + ponere to place more at position Date: 1551 the relationship between two propositions when the subject and predicate of one are… … New Collegiate Dictionary
contraposition — /kon treuh peuh zish euhn/, n. 1. placement opposite or against. 2. opposition, contrast, or antithesis. 3. 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… … Universalium