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Please help with these 3 questions in Formal Logic... giving formal proofs.

Question 2.1 (7) Using the natural deduction rules, give a formal proof that the following three sentences are inconsistent:(9) Question 2.3 Using the natural deduction rules, give a formal proof of P v S from the premises P v (QA R) |(Q vR) v S V

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sa E 17P 9. 7Q 3. TP 1 iQ Ti (1), (2), Conjuctive addition 4. (Pua) T: (3), Demorgans law 5. PUQ 6. (PVQ) no (pva) Ti(4), (5And! 1. Pu (@nR) Premire 2. (TQ V rR) vs. Premire 3. y la 1r) vs. T: (1), Demorgans law 4. pus ti (1),(2), Hypothetical syll

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