contrapositive

柯林斯英漢雙解大詞典

contrapositive /ˌkɒntrəˈpɒzɪtɪv/

1.ADJ placed opposite or against 對照的

2.N a conditional statement derived from another by negating and interchanging antecedent and consequent 對換句

3.N a categorial proposition obtained from another, esp validly, by any of a number of operations including negation, transferring the terms, changing their quality, and also possibly weakening from universal to particular 對換命題 ^[1] 

contrapositive rule[計] 倒置規則 ; 翻譯 ; 對調規則

contrapositive form[自] 換位形式

contrapositive law 假言易位

contrapositive sentence 換質位

The contrapositive 逆反命題

contrapositive symmetry 逆否對稱性

contrapositive contraposition proposition 逆否命題

contrapositive cam engine 對置式凸輪發動機

proof f by contrapositive 反證法 ^[1]