Question: Q 1 0 . ( a ) Prove the sequent p V q , p q , q p , not ( p ? ?

Q10.(a) Prove the sequent pVq,pq,qp,not(p??q)|-r,[5M]
(b) Prove the sequent 1-(pvv(pq))
[5M]
Q10.(a) Prove the sequent pVq,pq,qp,not(p??q)|-r,[5M] (b) Prove the sequent 1-(pvv(pq)) [5M]

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