1. T ⊃ S
2. S ⊃ R
3. T
-Which of the following propositions is derivable from the given premises using the rules of section 3.1 (MP, MT, DS, HS)?
A) R
B) ∼R
C) ∼S
D) ∼T

Question

Quizplus · Accepted Answer

From premise 1 and premise 3, we can use Modus Ponens (MP) to conclude S. Then, from premise 2 and the derived S, we can again use MP to conclude R. Therefore, proposition A, R, is derivable from the given premises using the rules of section 3.1.