Let * be a binary operation on Z defined by a*b = a +b-4 for all a , beZ. Which of the following is a FALSE statement?

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A: To find: the conditions such that "*" is a binary operation or binary composition.

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A: Explanation of the answer is as follows

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A: answer is in next step

Q: Show

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A: The given question is solved below.

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Q: show that the binary structures {Q,+} with {Q,+} where (x)=x/2 for xEQ are isomorphic

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