1 P ⊃ ∼Q
2 $\lor$ ∼∼Q
3 R ⊃ S
4

question 289

Multiple Choice

1. P ⊃ ∼Q
2. R $\lor$ ∼∼Q
3. R ⊃ S
4. ∼S
-Which of the following propositions is derivable from the given premises using the rules available through section 3.2 (MP, MT, DS, HS, Add, Conj, Simp, CD) ?

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

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