Module

FinitePlaceHilbertBadSetFinite.lean

Nyll.ClassFieldTheory.Theorems.HilbertSymbols.FinitePlaceHilbertBadSetFinite
1 declaration indexed from sourceView source ↗

Finiteness of the possible bad finite places

The set is defined by three explicit valuation conditions, independently of any choice of local Hilbert symbols or of a larger auxiliary support.

Declarations

ClassFieldTheory.finitePlaceHilbertBadSet_finite

Only finitely many places fail to make a, b, and n all units.

Source context 5 commands

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

open scoped NumberField
open NumberField IsDedekindDomain
noncomputable section
namespace ClassFieldTheory
universe u
theorem finitePlaceHilbertBadSet_finite
    (F : Type u) [Field F] [NumberField F]
    (n : ℕ+) (a b : Fˣ) :
    (finitePlaceHilbertBadSet F n a b).Finite