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Structures · Algebra

IsDedekindDomain

A Dedekind domain is an integral domain that is Noetherian, integrally closed, and has Krull dimension at most one. This is definition 3.2 of [Neukirch1992]. This is exactly IsDedekindRing plus the IsDomain hypothesis. The integral closure condition is independent of the choice of field of fractions: use isDedekindDomain_iff to prove IsDedekindDomain for a given fraction_map. This is the default implementation, but there are equivalent definitions, IsDedekindDomainDvr and IsDedekindDomainInv.

Defined in
Mathlib.RingTheory.DedekindDomain.Basic
Shape
One type argument

Extends2

Extended by0

Nothing extends this class yet.

Concrete types that are instances5

  • Localization
  • NumberField.RingOfIntegers
  • Ring.NormalClosure
  • Localization.AtPrime
  • Subtype

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Assumed by812

Ancestors10