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De 9 What do you mean by tautology of a statement? Prove that the follow statements are tautologies. (a) (porq) and(~p)

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De 9 What do you mean by tautology of a statement? Prove that the follow statements are tautologies....

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De 9 What do you mean by tautology of a statement? Prove that the follow statements are tautologies. (a) (porq) and(~p) ​

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De 9 What do you mean by tautology of a statement? Prove that the follow statements are tautologies. (a) (porq) and(~p)