1. (P ⊃ Q) ⊃ R
2. ∼(S ⊃ R)
-Which of the following propositions is derivable from the given premises using the rules available through section 3.5 (MP, MT, DS, HS, Add, Conj, Simp, CD, DM, Dist, Assoc, Com, DN, Cont, Impl, Equiv, Exp, Taut)?
A) P • ∼S
B) ∼Q • S
C) R • S
D) R • ∼P
E) ∼Q • ∼S

Question

Quizplus · Accepted Answer

The Answer of 1. (P ⊃ Q) ⊃ R
2. ∼(S ⊃ R)
-Which of the following propositions is derivable from the given premises using the rules available through section 3.5 (MP, MT, DS, HS, Add, Conj, Simp, CD, DM, Dist, Assoc, Com, DN, Cont, Impl, Equiv, Exp, Taut)?
A) P • ∼S
B) ∼Q • S
C) R • S
D) R • ∼P
E) ∼Q • ∼S