1 P ⊃ (Q ⊃ R)
2 $\lor$ ∼T) $\lor$

question 169

Multiple Choice

1. P ⊃ (Q ⊃ R)
2. ∼(R ⊃ S) ⊃ ∼T
3. (U $\lor$ ∼T) $\lor$ ∼(Q ⊃ S) / ∼U ⊃ ∼(P • T)
-Which of the following propositions is a likely last line of the indented sequence for an indirect proof nested within an indented sequence for conditional proof for the given argument?

• A) P • ∼P
• B) Q • ∼Q
• C) T • ∼T
• D) All of the above
• E) Options B and C, but not option A

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