Splitting Fields
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Let E be an extension of F and f(x) be in F[x]. Also, let Φ be an automorphism of E leaving every element of F fixed. Prove that Φ must take a root of f(x) lying in E into a root of f(x) in E.
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Splitting fields are investigated. The solution is detailed and well presented.
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Let E be an extension of F and f(x) be in F[x]. Also, let Φ be ...
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