When the truth of sentence(a)guarantees

资格题库2022-08-02  46

问题 When the truth of sentence(a)guarantees the truth of sentence(b)and the falsity of sentence(a)guaran-tees the falsity of sentence(b),we can say that_________.A.sentence(a)presupposes sentence(b)B.sentence(a)entails sentence(b)C.sentence(a)is synonymous with sentence(b)D.sentence(a)contradicts sentence(b)

选项 A.sentence(a)presupposes sentence(b)
B.sentence(a)entails sentence(b)
C.sentence(a)is synonymous with sentence(b)
D.sentence(a)contradicts sentence(b)

答案 C

解析 题干描述的是句子(a)和句子(b)之间的真值条件,即如果(a)为真,那么(b)也为真;如果(a)为假,那么(b)也为假。由此判断,两个句子是同义关系,选C。
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