Module

FinitePlaceCompletionValuationCompatibility.lean

Nyll.SawinTotallyRealTowers.UnramifiedProPRelationRank.Radical.FinitePlaceCompletionValuationCompatibility
3 declarations indexed from sourceView source ↗

Valuation compatibility of the two finite-place completion models

The comparison is an isometry; both valuation relations are exactly the norm comparison relation. This supplies the certificate for actual Artin naturality.

Declarations

ClassFieldTower.Martinet.Shafarevich.finitePlaceCompletionCompatibilitySourceValuativeRel
Source context 5 commands

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

noncomputable section
namespace ClassFieldTower.Martinet.Shafarevich
open NumberField IsDedekindDomain LocalClassFieldTheory GlobalClassFieldTheory.Reciprocity
variable (F : Type) [Field F] [NumberField F]
variable (v : HeightOneSpectrum (RingOfIntegers F))
instance finitePlaceCompletionCompatibilitySourceValuativeRel :
    ValuativeRel (HeightOneSpectrum.adicAbv F v).Completion
ClassFieldTower.Martinet.Shafarevich.finitePlaceCompletionCompatibilityTargetValuativeRel
Source context 6 commands

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

noncomputable section
namespace ClassFieldTower.Martinet.Shafarevich
open NumberField IsDedekindDomain LocalClassFieldTheory GlobalClassFieldTheory.Reciprocity
variable (F : Type) [Field F] [NumberField F]
variable (v : HeightOneSpectrum (RingOfIntegers F))
local instance finitePlaceCompletionCompatibilitySourceValuativeRel :
    ValuativeRel (HeightOneSpectrum.adicAbv F v).Completion :=
  finitePlaceLocalArtinCompletionValuativeRel v
instance finitePlaceCompletionCompatibilityTargetValuativeRel :
    ValuativeRel (v.adicCompletion F)
ClassFieldTower.Martinet.Shafarevich.finitePlaceCompletion_semilinearValuationCompatible

The canonical completion equivalence preserves the actual valuation relation.

Source context 7 commands

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

noncomputable section
namespace ClassFieldTower.Martinet.Shafarevich
open NumberField IsDedekindDomain LocalClassFieldTheory GlobalClassFieldTheory.Reciprocity
variable (F : Type) [Field F] [NumberField F]
variable (v : HeightOneSpectrum (RingOfIntegers F))
local instance finitePlaceCompletionCompatibilitySourceValuativeRel :
    ValuativeRel (HeightOneSpectrum.adicAbv F v).Completion :=
  finitePlaceLocalArtinCompletionValuativeRel v
local instance finitePlaceCompletionCompatibilityTargetValuativeRel :
    ValuativeRel (v.adicCompletion F) :=
  finitePlaceAdicCompletionValuativeRel F v
theorem finitePlaceCompletion_semilinearValuationCompatible :
    SemilinearValuationCompatible (HeightOneSpectrum.adicAbv F v).Completion
      (v.adicCompletion F) (relativeFinitePlaceCompletionAlgEquiv v).toRingEquiv