真值表
真值表是使用于逻辑中（特别是拉连结逻辑代数、布尔函数搭命题逻辑上）个一类数学用表，用来计算逻辑表示式拉每种论证（即每种逻辑变数取值个组合）上个值。尤其是，真值表可以用来判断一个命题表示式是否对所有允许个输入值侪为真，亦即是否为逻辑有效个。
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