Solved

1 (P $\lor$ Q) $\lor$ R
2 ∼(S $\lor$

Question 158

Multiple Choice

1. (P $\lor$ Q) $\lor$ R
2. ∼(S $\lor$ Q)
-Which of the following propositions is an immediate (one-step) consequence in PL of the given premises?

A) ∼S $\lor$ ∼Q
B) ∼S • ∼Q
C) ∼Q • ∼S
D) (P $\lor$ R) $\lor$ Q
E) Q $\lor$ (P $\lor$ R)

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