Documentation

Mathlib.FieldTheory.Finite.Valuation

Valuations on an algebra over a finite field. #

theorem FiniteField.valuation_algebraMap_eq_one {Fq : Type u_1} {A : Type u_2} {Γ : Type u_3} [Field Fq] [Finite Fq] [Ring A] [Algebra Fq A] [LinearOrderedCommMonoidWithZero Γ] (v : Valuation A Γ) (a : Fq) (ha : a 0) :
v ((algebraMap Fq A) a) = 1
theorem FiniteField.valuation_algebraMap_le_one {Fq : Type u_1} {A : Type u_2} {Γ : Type u_3} [Field Fq] [Finite Fq] [Ring A] [Algebra Fq A] [LinearOrderedCommMonoidWithZero Γ] (v : Valuation A Γ) (a : Fq) :
v ((algebraMap Fq A) a) 1
instance FiniteField.instIsTrivialOn {Fq : Type u_1} {A : Type u_2} {Γ : Type u_3} [Field Fq] [Finite Fq] [Ring A] [Algebra Fq A] [LinearOrderedCommMonoidWithZero Γ] (v : Valuation A Γ) :