因此,在此之后我已经走到了死胡同,在此之后我尝试执行de Morgan统治,但之后却面临死胡同。 我已经尝试过了
(p ∧ q) ∧ (¬p ∨ ¬q)
(p ∧ q) ∧ ¬(p ∧ q)
答案 0 :(得分:0)
让p∧q = X,然后
(p∧q)∧¬(p∧q)可以写成X¬X X,这与补律是矛盾的。
答案 1 :(得分:-1)
实际上,您的第二个表达式已经是您需要的形式:它声明A ∧ ¬A
,这与定义是矛盾的。
答案 2 :(得分:-1)
(p ∧ q) ∧ (¬p ∨ ¬q)
通过De Morgan's law,它变为:
(p ∧ q) ∧ -(p ∧ q)
这样一个矛盾:(p ∧ q) AND NOT (p ∧ q)
例如:
p = "I went to the beach"
q = "I played football"
逻辑说明如下:
I went to the beach and played football, and I did not go to the beach and I did not play football
这是一个矛盾。