1. G ⊃ H

Multiple Choice

1. G ⊃ H
2. G ⊃ I
-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) G ≡ H
B) G ≡ (H • I)
C) G ⊃ (H • I)
D) All of the above
E) None of the above