CONTRAPOSITION


Meaning of CONTRAPOSITION in English

n. 1 opposition or contrast. 2 Logic conversion of a proposition from all A is B to all not-B is not-A. contrapositive adj. & n.

[ LL contrapositio (as CONTRA-, ponere posit- place) ]

Concise Oxford English dictionary.      Краткий оксфордский словарь английского языка.