3. Suppose o: C C is an isomorphism such that o(r) = r for each r...

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3. Suppose o: C C is an isomorphism such that o(r) = r for each r ER. Suppose further that is not the identity mapping. Prove

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C is an is amorphicon ② suppose 9:6- such that 8 (0)2 r for each reir. let 22 zit it, & c where Z1, Z2 ER Since for every , C

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