OBVERT


Meaning of OBVERT in English

v.tr. Logic alter (a proposition) so as to infer another proposition with a contradictory predicate, e.g. no men are immortal to all men are mortal.

Derivatives:

obversion n.

Etymology: L obvertere obvers- (as OB-, vertere turn)

Oxford English vocab.      Оксфордский английский словарь.