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MathlibNt.AnalyticNumberTheory.Chen1973.Chen1973Lemma6Equation21FiniteFinal

theorem AnalyticNumberTheory.LargeSieve.finite_power_gap {x : } {y : } (hu : 64 Real.log x) (hy : 1 < y) (hyx : y x) :
theorem AnalyticNumberTheory.LargeSieve.finite_star_payment {x : } {y : } (hu : 64 Real.log x) (hy : 1 < y) (hyx : y x) (hly : Real.log x / 3 Real.log y) (hleft : ∀ (σ : ), 1 / 2 σeq21FiniteScalarMbar (Real.log x) * (σ⁻¹ + Real.log (Real.log x ^ 2)) Real.log x / 3) (htail : 8 * Real.exp (1 + (Real.log x)) * (chen1973PerronScale x / Real.log x ^ 2) ^ (chen1973PerronOrder x + 1) * Real.log x ^ 2 1) :
have u := Real.log x; have σ := chen1973Lemma6Eq21Sigma x; have α := chen1973Lemma6Alpha x; have M := eq21FiniteScalarMbar u; have N := chen1973PerronOrder x + 1; y ^ σ * M * (σ⁻¹ + Real.log (u ^ 2)) / (Real.pi * Real.log y) + y ^ α / (Real.pi * Real.log y) * (chen1973PerronScale x / u ^ 2) ^ N * (6 * u ^ 2 / N + (α - σ) * M / u ^ 2) 2 * y ^ σ

Both finite-contour pieces are paid, retaining the actual smoothing floor.

theorem AnalyticNumberTheory.LargeSieve.chen1973Lemma6_eq21_actualTerm_two_eventually_of_finiteZeroFree :
∃ (X₀ : ), xX₀, ∀ (L B k m l₂ : ), Chen1973Lemma6Eq21SourceParameters x L B k m l₂rawFiniteZeroFreeInput x Ldchen1973Lemma6ConductorBlock x L 0, ∀ (χ : PrimitiveCharacter d), ppchen1973Lemma6PrimePairShell x B k m, chen1973Lemma6ActualPhi x d χ pp * χ ↑(pp.1 * pp.2) / Real.log (x / (pp.1 * pp.2)) 2 * (x / (pp.1 * pp.2)) ^ chen1973Lemma6Eq21Sigma x

Uniform actual-term estimate, derived only from finite raw nonvanishing.

theorem AnalyticNumberTheory.LargeSieve.finite_actual_Nm_le_four {x L B k m l₂ : } (P : Chen1973Lemma6Eq21SourceParameters x L B k m l₂) (hterm : dchen1973Lemma6ConductorBlock x L 0, ∀ (χ : PrimitiveCharacter d), ppchen1973Lemma6PrimePairShell x B k m, chen1973Lemma6ActualPhi x d χ pp * χ ↑(pp.1 * pp.2) / Real.log (x / (pp.1 * pp.2)) 2 * (x / (pp.1 * pp.2)) ^ chen1973Lemma6Eq21Sigma x) :

Actual finite character and prime-pair sums; no shifted whole-line object.

Equation (21) for actual Nm under only the finite nonvanishing rectangle.

theorem AnalyticNumberTheory.LargeSieve.finite_rawInput_of_fixedSiegel (c : ) (hc : 0 < c) :
∃ (X₀ : ), xX₀, ∀ (L B k m l₂ : ), Chen1973Lemma6Eq21SourceParameters x L B k m l₂(∀ dchen1973Lemma6ConductorBlock x L 0, ∀ (χ : PrimitiveCharacter d), χ ^ 2 = 1c * d ^ (-(1 / 10000)) (chen1973Lemma6PrimitiveLValue d 1 χ).re)rawFiniteZeroFreeInput x L

Fixed-c quadratic L(1) data produce the finite rectangle. No Siegel lower bound itself is asserted, and c is fixed before the threshold.

theorem AnalyticNumberTheory.LargeSieve.chen1973Lemma6_equation21_levelZero_eventually_of_fixedSiegel (c : ) (hc : 0 < c) :
∃ (X₀ : ), xX₀, ∀ (L B k m l₂ : ), Chen1973Lemma6Eq21SourceParameters x L B k m l₂(∀ dchen1973Lemma6ConductorBlock x L 0, ∀ (χ : PrimitiveCharacter d), χ ^ 2 = 1c * d ^ (-(1 / 10000)) (chen1973Lemma6PrimitiveLValue d 1 χ).re)chen1973Lemma6NmBlockActual x L 0 B k m x / Real.log x ^ 20

Final actual Nm bound, conditional solely on fixed-c raw quadratic L(1) lower bounds. All analytic finite-contour and nonquadratic inputs are derived.

theorem AnalyticNumberTheory.LargeSieve.chen1973Lemma6_equation21_levelZero_eventually_of_rawQuadraticL1 (c : ) (hc : 0 < c) :
∃ (X₀ : ), xX₀, ∀ (L B k m l₂ : ), Chen1973Lemma6Eq21SourceParameters x L B k m l₂(∀ (d : ) (hd : d chen1973Lemma6ConductorBlock x L 0), have this := ; ∀ (χ : PrimitiveCharacter d), χ ^ 2 = 1c * d ^ (-(1 / 10000)) (DirichletCharacter.LFunction (↑χ) 1).re)chen1973Lemma6NmBlockActual x L 0 B k m x / Real.log x ^ 20

Literal Dirichlet L-function formulation of the fixed-c terminal. The local NeZero instance is derived from actual block membership, not assumed.