OAI/NumberTheory/TotientAsymptotic/SurvivingHeights.lean

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2 declarations, 0 contain sorry, 0 declared as axioms

Actual surviving factors, with uniform top and positive-coordinate bounds.

  1. lemma OAI.TotientAsymptotic.one_lt_nat_of_doubleLog_pos line 15
  2. theorem OAI.TotientAsymptotic.surviving_factor_heights line 21

    Source documentation

    Unlike the positive-coordinate band lemma, this also covers collisions whose first different prime is the largest prime of the tuple.

    theorem surviving_factor_heights : ∀ᶠ H : ℕ in atTop, ∀ᶠ x : ℝ in atTop,
        ∀ i p q : ℕ, i ≤ R x H →
        ∀ η ξ : RemainderDatum (L x H), IsBasicRemainder x H η → IsBasicRemainder x H ξ →
        GoodWitnessConditions p η → GoodWitnessConditions q ξ →
        wholeWitnessPrime p η i ≠ wholeWitnessPrime q ξ i → ∀ y : ℝ,
        1<y → 0<B y → fordBandScale x i/2 ≤ B y → B y ≤ 2*fordBandScale x i →
        y^(9/10 : ℝ) ≤ wholeWitnessPrime p η i → y^(9/10 : ℝ) ≤ wholeWitnessPrime q ξ i →
        (∀ r : Fin (collisionSurvivors p q η ξ i (collisionLastIndex x i)).card,
          ((survivingPair p q η ξ i (collisionLastIndex x i)).left r-1 : ℕ) ≤ y ∧
          ((survivingPair p q η ξ i (collisionLastIndex x i)).right r-1 : ℕ) ≤ y) →
        ∃ hb : 0<(collisionSurvivors p q η ξ i (collisionLastIndex x i)).card,
          ((9/10 : ℝ)*B y ≤ B (largestPrimeFactor
    …

    Mentions: OAI.TotientAsymptotic.R, OAI.TotientAsymptotic.RemainderDatum, OAI.TotientAsymptotic.L, OAI.TotientAsymptotic.IsBasicRemainder, OAI.TotientAsymptotic.GoodWitnessConditions, OAI.TotientAsymptotic.wholeWitnessPrime, OAI.TotientAsymptotic.B, OAI.TotientAsymptotic.fordBandScale, OAI.TotientAsymptotic.collisionSurvivors, OAI.TotientAsymptotic.collisionLastIndex, OAI.TotientAsymptotic.survivingPair, OAI.TotientAsymptotic.largestPrimeFactor