If * is defined on Z such that a * b=a+b-1 for a, b E Z,...

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If * is defined on Z such that a * b=a+b-1 for a, b E Z, show that {Z,*} is an abelian group. If * is defined on Z such that a * b=a+b-1 for a, b E Z, show that {Z,*} is an abelian group.

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To show that Z is an abelian group we need to verify the following properties Closure F... View the full answer