SOLVED: Exercise 1.5.2: Using the laws of logic to prove logical equivalence. Use the laws of propositional logic to prove the following:(e) (p - r) v (q = r) = (p ^ q) = r(0)  (p v ( p ^ q)) = -p ^ -q(g) (p ^ q ^  r) v (p ^ -q ^  r) = -p ^  r(h) (p ^ r) =  p v r(p ^ 9) r = (p ^ -r) -q
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