Question

Demonstrate the following equivalence [∃x,(P(x) ⇒ Q(x))] ≡ [(∀x, P(x)) ⇒ (∃x, Q(x))].

Demonstrate the following equivalence

[∃x,(P(x) ⇒ Q(x))] ≡ [(∀x, P(x)) ⇒ (∃x, Q(x))].

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