1 P ⊃ (Q ⊃ R)
2 $\lor$ ∼T) $\lor$

Multiple Choice

1. P ⊃ (Q ⊃ R)
2. ∼(R ⊃ S) ⊃ ∼T
3. (U $\lor$ ∼T) $\lor$ ∼(Q ⊃ S) / ∼U ⊃ ∼(P • T)
-Which of the following methods is most appropriate to derive the conclusion of the given argument?

A) Assume '∼U' for conditional proof and then assume '∼(P • T) ' for indirect proof.
B) Assume '∼U' for conditional proof and then assume 'P • T' for indirect proof.
C) Assume 'U' for conditional proof and then assume 'P • T' for indirect proof.
D) Assume '∼U • ∼(P • T) ' for indirect proof.
E) Assume '∼U ⊃ ∼(P • T) ' for conditional proof.