(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

let phi : G --->G' be an isomorphism of groups. let x element of G and let x'=phi(x)

Prove that the orders of x and x' are equal

3. The attempt at a solution

I dont even know what the order of a isomorphism means. As far as i know, an isomorphism is just a bijective map from G to G'. How does this have order?

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# Homework Help: Orders of Isomorphisms

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