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Prove the validity of the following sequents: a) (paq) Ar, sattus b) piq tq1p c) r, p (rq) Ep (q1r) d) (p q)(pr) tp q^r
Prove the validity of the following sequents: a) (paq) Ar, sattus b) piq tq1p c) r, p (rq) Ep (q1r) d) (p q)(pr) tp q^r e) p q, s t EpVsq1t f) (s p) V (t +9) E ( sq) v (t p)
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