qqp question1: How do I show that ∀x P(x) ∨∀x Q(x) and ∀x (P(x) ∨Q(x)) are not logically equivalent? question2: How do I show that ∀x¬(Q(x) → P(x)) and ∀x(Q(x) ∧¬P(x)) are logically equivalent or not?