【判断题】
联结词“↓”是可交换的
A. 对
B. 错
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答案
A
解析
暂无解析
相关试题
【判断题】
对公式(z)(P(z)∧Q(x,z)∧M(z,y))∨R(z)中约束变量z改名后,得到的等价公式为:(t)(P(t)∧Q(x,t)∧M(t,y))∨R(t)
A. 对
B. 错
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