noun see: position Date: 1551 the relationship between two propositions when the subject and predicate of one are respectively the negation of the predicate and the negation of the subject of the other
CONTRAPOSITION
Meaning of CONTRAPOSITION in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012