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1 (P $\lor$ Q) ⊃ R
2 $\lor$

Question 156

Multiple Choice

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

A) ∼Q ⊃ R
B) R $\lor$ ∼Q
C) ∼[∼(P $\lor$ Q) ⊃ R]
D) ∼(P $\lor$ Q) $\lor$ R
E) R ⊃ (P $\lor$ Q)

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