| 释义 |
obvert/əbˈvɜ:t/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 【逻辑学】反换(命题) (如把“没有人是永生的”换质为“人不免一死”) □ obversion n.[Latin obvertere obvers- (as OB-, vertere ‘turn’)] |