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Mathematics, 18.07.2019 02:20 melanyaguirre25

Construct proofs for the following more challenging problems, using any of the rules in units 7-9. (unit 7 is rules of inference, unit 8 is rules of replacement, unit 9 is proofs and indirect proofs). f. a = (~ bv(c• ~ (a = (d• f v(c = g) 1. a) ( b g )
k. d) ~(t z), s v~(d) ~ z), a = ~ (s·t), w ~w, e (tvw) 10 (a) ~ e)

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Construct proofs for the following more challenging problems, using any of the rules in units 7-9. (...
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