derive the conclusions of each of the following arguments using any of the twenty-five rules of PL and the direct, conditional, or indirect methods of proof.
-1. P ⊃ (Q ⊃ R)
2. ∼(R ⊃ S) ⊃ ∼T
3. (U $ \lor $ ∼T) $ \lor $ ∼(Q ⊃ S) / ∼U ⊃ ∼(P • T)

Question

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The Answer of derive the conclusions of each of the following arguments using any of the twenty-five rules of PL and the direct, conditional, or indirect methods of proof.
-1. P ⊃ (Q ⊃ R)
2. ∼(R ⊃ S) ⊃ ∼T
3. (U $ \lor $ ∼T) $ \lor $ ∼(Q ⊃ S) / ∼U ⊃ ∼(P • T)

Derive the Conclusions of Each of the Following Arguments Using ∨ \lor ∨

Derive the Conclusions of Each of the Following Arguments Using $\lor$