1. (J ≡ K) $ \lor $ L
2. K ≡ L
3. ∼L
-Which of the following propositions is derivable from the given premises using any of the twenty-five rules of PL?
A) J
B) K
C) L
D) ∼(J $ \lor $ K)
E) ∼(J $ \lor $ ∼L)

Question

Quizplus · Accepted Answer

The Answer of 1. (J ≡ K) $ \lor $ L
2. K ≡ L
3. ∼L
-Which of the following propositions is derivable from the given premises using any of the twenty-five rules of PL?
A) J
B) K
C) L
D) ∼(J $ \lor $ K)
E) ∼(J $ \lor $ ∼L)

1 (J ≡ K) ∨ \lor ∨ L 2 K ≡ L 3

1 (J ≡ K) $\lor$ L
2 K ≡ L
3