Module

DedekindPrime.lean

Nyll.SchemeTheory.RingTheory.Localization.DedekindPrime
1 declaration indexed from sourceView source ↗

Discrete valuation rings from Dedekind prime localizations

Proves that localization of a Dedekind domain at a nonzero prime is a discrete valuation ring.

Declarations

SchemeTheory.localizationAtPrime_isDiscreteValuationRing

The native prime localization of a Dedekind domain is a DVR at a nonzero prime. Its coefficient Algebra stays inside this ring-only owner.

Source context 2 commands

Surrounding namespaces, section variables, and local commands at this declaration.

namespace SchemeTheory
universe u
theorem localizationAtPrime_isDiscreteValuationRing
    (B : Type u) [CommRing B] [IsDedekindDomain B]
    (Q : Ideal B) [Q.IsPrime] (hQ : Q ≠ ⊥) :
    IsDiscreteValuationRing (Localization.AtPrime Q)