Raw Landau--Siegel lower bounds supply the low Siegel--Walfisz source #
The quadratic and nonquadratic uniform pointwise estimates are combined at the same requested exponents and ambient endpoint. The finite pointwise-to-prefix amplitude bridge then supplies the exact low source used by Standard BV.
theorem
AnalyticNumberTheory.LargeSieve.nonprincipalPrimitivePsiSiegelWalfiszSource_of_rawLandauSiegelLowerBound
(hLandauSiegel : RawLandauSiegelLowerBound)
{ν : ℝ → ℝ}
(diffν : ContDiff ℝ 1 ν)
(νpos : ∀ x > 0, 0 ≤ ν x)
(suppν : Function.support ν ⊆ Set.Icc (1 / 2) 2)
(mass_one : ∫ (x : ℝ) in Set.Ioi 0, ν x / x = 1)
:
A raw Landau--Siegel lower bound supplies the nonprincipal primitive
prefix-amplitude Siegel--Walfisz source. The split is the literal dichotomy
χ² = 1 versus χ² ≠ 1; both branches use one shared eventual endpoint and
the common constant Kn + Kq.
theorem
AnalyticNumberTheory.LargeSieve.standardBombieriVinogradov_of_rawLandauSiegelLowerBound
(hLandauSiegel : RawLandauSiegelLowerBound)
{ν : ℝ → ℝ}
(diffν : ContDiff ℝ 1 ν)
(νpos : ∀ x > 0, 0 ≤ ν x)
(suppν : Function.support ν ⊆ Set.Icc (1 / 2) 2)
(mass_one : ∫ (x : ℝ) in Set.Ioi 0, ν x / x = 1)
:
Honest conditional Standard Bombieri--Vinogradov headline: after the fixed smoothing data, the only analytic hypothesis is the raw Landau--Siegel lower bound.