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  3. (c) (¬p ? q) ? (p ? q) and p (d) (p ? q) ? p...

(c) (¬p ? q) ? (p ? q) and p (d) (p ? q) ? p...

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Advance Math

(c) (¬p ? q) ? (p ? q) and p

(d) (p ? q) ? p and T

I was wondering if I could get help proving these expressionsare logically equivalent by applying laws of logic.

Also these 2 last questions im having trouble with.
Rewrite the negation of each of the following logical expressionsso that all negations
immediately precede predicates.
(a) ¬?x(¬P(x) ? Q(x))
(b) ¬?x(P(x) ? ¬Q(x))

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