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

Let R be an integral domain and suppose that R[x] is a principal ideal domain. Show that R is a field.

2. Relevant equations

I don't know where to start, I'm not familiar with this material. I was browsing through an abstract algebra book and found this. Would like an explanation of what it means, thank you.

3. The attempt at a solution

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# Abstract Algebra Proof

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