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[单选题]
命题逻辑推理规则中,CP规则是指( )
A
前提在推导过程中的任何时候都可以引入使用。b.推理中,如果一个或多个公式,蕴含了公式S,则公式S可以引入到以后的推理之中。c.在推导过程的任何步骤上,命题公式中的子公式都可以用与之等价的公式置换。d.
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试题答案:
D
答案解释:
参见第2章命题逻辑的推理规则。
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