Question: Use the basic natural deduction rules for propositional logic to prove the validity of the following sequents: (i) (pq)(pr)p(qr) (ii) (pr)(qr)((pq)r)

Use the basic natural deduction rules for propositional logic to prove

Use the basic natural deduction rules for propositional logic to prove the validity of the following sequents: (i) (pq)(pr)p(qr) (ii) (pr)(qr)((pq)r)

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