Question: (10 marks) Using a proof by contraposition, prove 8x; y 2 R, if 3y 2(x + 1), then x 2 or y x. (No marks

(10 marks) Using a proof by contraposition, prove 8x; y 2 R, if 3y 2(x + 1), then x 2 or y x. (No marks will be given if any other method is used.)

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