obvert造句
造句与例句手机版
- Conversion by contraposition is the simultaneous interchange and negation of the subject and predicate, and is valid only for the type " A " and type " O " propositions of obverse can be obtained in all four types of traditional propositions, yielding propositions with the contradictory of the original predicate, contraposition is first obtained by converting the obvert of the original proposition.
- It's difficult to see obvert in a sentence. 用obvert造句挺难的