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单词 contraposition
释义

contraposition

enUK

con·tra·po·si·tion

C0607300 (kŏn′trə-pə-zĭsh′ən)n. An opposite position; antithesis.

contraposition

(ˌkɒntrəpəˈzɪʃən) n1. the act of placing opposite or against, esp in contrast or antithesis2. (Logic) logic the derivation of the contrapositive of a given categorial proposition

con•tra•po•si•tion

(ˌkɒn trə pəˈzɪʃ ən)

n. 1. placement opposite or against. 2. opposition or antithesis. 3. 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.” [1545–55; < Late Latin]
Thesaurus

contraposition

nounThe condition of being in conflict:antagonism, antithesis, contradiction, contradistinction, contrariety, contrariness, opposition, polarity.
Translations
contraposição

Contraposition

enUK

Contraposition

 

the law of traditional logic that holds that if from a certain proposition A there follows the proposition B, then from the negation of the proposition B follows the negation of the proposition A (or in the language of conditional propositions: from the truth of the proposition “If A, then B” follows the truth of the proposition “If not B ?, then not- A”).

REFERENCES

Church, A. Vvedenie v matematicheskuiu logiku. Moscow, 1960. (Translated from English.)
Tarski, A. Vvedenie v logiku i metodologiiu deduktivnykh nauk. Moscow, 1948. (Translated from English.)

contraposition

enUK
Related to contraposition: conversion
  • noun

Synonyms for contraposition

noun the condition of being in conflict

Synonyms

  • antagonism
  • antithesis
  • contradiction
  • contradistinction
  • contrariety
  • contrariness
  • opposition
  • polarity
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