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A Boolean formula is a tautology if p evaluates to true on every possible truth assignment. Define TAUT = {{Ip is a tautology} Prove the

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A Boolean formula is a tautology if p evaluates to true on every possible truth assignment. Define TAUT = {{Ip is a tautology} Prove the following: (a) TAUT is coNP-complete. If TAUT E NP, then NP = CONP. (b)

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