When the truth of sentence(a)guarantees the truth of sentence(b)and the falsi...

作者: tihaiku 人气: - 评论: 0
问题 When the truth of sentence(a)guarantees the truth of sentence(b)and the falsity of sentence(b) guarantees the falsity of sentence(a),we can say that_________.
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 B
解析 题干描述的是句子(a)和句子(b)的真值条件,即如果(a)为真,那么(b)也为真;如果(b)为假,那么(a)也为假。由此判断,句子(a)的含义蕴涵于句子(b)的含义,选B。

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