找考题网-背景图
单项选择题

A.∀x(O(x)→∀y(P(y)→¬D(x)))B.∀x(O(x)→∃y(P(y)∧¬D(x)))C.∃x(……

令P(x)为“x是质数”,E(x)为“x是偶数”,O(x)为“x是奇数”,D(x,y)为“x除尽y”,翻译命题:()
任何质数不能除尽任何质数。



A.∀x(O(x)→∀y(P(y)→¬D(x)))
B.∀x(O(x)→∃y(P(y)∧¬D(x)))
C.∃x(O(x)∧∃y(P(y)∧¬D(x)))
D.∃x(O(x)→∀y(P(y)→¬D(x)))

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