i need help with this quick pls , please solve 5a​
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jiangjacky1234ozqz8r 7 months ago
Светило науки - 44 ответа - 0 помощи

Answer:

Step-by-step explanation:

If you use de morgan's laws to write out , it returns -P ^ -Q

And if ^ means 'and', it is showing that (P and Q) and (-P and -Q) which isn't possible since there can't be something that is both true and false. Therefore, it is a contradiction since something can not be true a nd false at the same time.

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