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

Question 29

Essay

derive the conclusions of each of the following arguments using the rules of inference for M, including conditional or indirect proof.
-1. (∀x)[(Px ∨ \lor Qx) ⊃ (Rx • ∼Sx)]
2. (∀x)[Rx ⊃ (Tx ⊃ ∼Sx)] / (∀x)[Px ⊃ (Sx ⊃ ∼Tx)]

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