Your Google Chat history can now be searched by Gemini - how it works
This formula is satisfiable because if we set to b to true and a to false, then the whole formula is true. All other assignments make the formula false, but it doesn't change that the formula is satisfiable as long as there is at least one assignment makes the formula true.，详情可参考51吃瓜
，这一点在夫子中也有详细论述
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