Question: (a) Propositional Logic Let F be the formula (A VB) + (B V A), and let G be the formula A+ (B+(-BV-A)) +-B. 2 (i)

(a) Propositional Logic Let F be the formula (A VB) +

(a) Propositional Logic Let F be the formula (A VB) + (B V A), and let G be the formula A+ (B+(-BV-A)) +-B. 2 (i) Provide a constructive Sequent Calculus proof of F. (ii) Provide a constructive Natural Deduction proof of G. (iii) Is G satisfiable? Justify your answer. [4 marks] [6 marks] [2 marks]

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