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II. Create a truth table using the negation of the conclusion and show a contradiction to prove validity a) bod h) b c d -

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II. Create a truth table using the negation of the conclusion and show a contradiction to prove validity a) bod h) b c d - cda 0) (cd).(b c d b) D) p) P H.P.4 P (9) ::-(qor)) ? c) PV j) bad (b P P qur P (qv) p~9 i.por (p 9).rs) pur :.qvs (p 4).rs) V~$ ..-PV- (pv) (p.4 P. Cipv d) k) P r) P. ipv4 D .. e) 1) s) P ) ) / .. i.pra f) m) ) t) (d~.b) Ad ?:4.37 PV n) u) (1cb c d b c d :-(qip) (pvn) P.4) (pva .:-(:4 ..^ll-p .. II. Create a truth table using the negation of the conclusion and show a contradiction to prove validity a) bod h) b c d - cda 0) (cd).(b c d b) D) p) P H.P.4 P (9) ::-(qor)) ? c) PV j) bad (b P P qur P (qv) p~9 i.por (p 9).rs) pur :.qvs (p 4).rs) V~$ ..-PV- (pv) (p.4 P. Cipv d) k) P r) P. ipv4 D .. e) 1) s) P ) ) / .. i.pra f) m) ) t) (d~.b) Ad ?:4.37 PV n) u) (1cb c d b c d :-(qip) (pvn) P.4) (pva .:-(:4 ..^ll-p

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