1 a ⊃ (B $\lor$ ∼C)
2 D ⊃ (∼B • ∼E)
-Which of the Following

1. A ⊃ (B $\lor$ ∼C)
2. D ⊃ (∼B • ∼E)
-Which of the following propositions is derivable from the given premises using any of the twenty-five rules of PL and either the direct or conditional methods of proof?

A) (A • D) ⊃ ∼(B $\lor$ ∼E)
B) (A • D) ⊃ ∼(C $\lor$ E)
C) (A • D) ⊃ ∼(B $\lor$ ∼C)
D) (A • D) ⊃ ∼(D $\lor$ B)
E) (A • D) ⊃ ∼(E $\lor$ D)

Correct Answer:

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