1 a ⊃ ∼B
2 $\lor$ (B ≡ ∼C)
3

Multiple Choice

1. A ⊃ ∼B
2. A $\lor$ (B ≡ ∼C)
3. B
-Which of the following propositions is an immediate (one-step) consequence in PL of the given premises?

A) ∼A
B) ∼∼B
C) (A $\lor$ B) ≡ (A $\lor$ ∼C)
D) Options A, B, and C
E) Options A and B, but not C