1 V ≡ (W $\lor$ ∼X)
2 ∼Y ≡ ∼V
3

Multiple Choice

1. V ≡ (W $\lor$ ∼X)
2. ∼Y ≡ ∼V
3. (W ⊃ Y) ⊃ Z
-Which of the following propositions is derivable from the given premises using any of the twenty-five rules of PL?

A) V
B) Y
C) Z
D) W ⊃ Z
E) V ⊃ W