If $K$ is a finite extension of $\Q_p$ for some prime $p$, then there is a unique intermediate field $F$ such that $F/\Q_p$ is unramified. Then the extension $K/F$ is totally ramified.

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- Review status: reviewed
- Last edited by John Cremona on 2018-05-30 08:51:59

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- 2018-05-30 08:51:59 by John Cremona (Reviewed)