Question: Exercise 1.4.3: Proving two logical expressions are not logically equivalent. About Prove that the following pairs of expressions are not logically equivalent. (a) p q

Exercise 1.4.3: Proving two logical expressions are not logically equivalent. About Prove that the following pairs of expressions are not logically equivalent.

(a) p q and q p

(b) p q and p q

(d) p (p q) and p q

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