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double negation中文是什么意思

发音:  
用"double negation"造句"double negation"怎么读"double negation" in a sentence

中文翻译手机手机版

  • 双重否定

例句与用法

  • Introduction to english double negation
    英语双重否定句浅说
用"double negation"造句  

百科解释

In propositional logic, double negation is the theorem that states that "If a statement is true, then it is not the case that the statement is not true." This is expressed by saying that a proposition A is logically equivalent to not (not-A), or by the formula A ≡ ~(~A) where the sign ≡ expresses logical equivalence and the sign ~ expresses negation.
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