OAI/NumberTheory/JointDickman/MainStatements.lean
8 declarations, 0 contain sorry, 0 declared as axioms
The joint Dickman law and strict ordering densities
The moving smoothness thresholds for both consecutive integers use the base n.
Counting is ordinary natural density through real endpoints.
- def
OAI.JointDickman.realDensityline 21Source documentation
The paper's real-endpoint ordinary density. The natural floor is harmless for the positive endpoints in the limit, and includes exactly
2 ≤ n ≤ X.Also declared: ComparatorChallenges/JointDickman.lean:33 (same declaration text).
noncomputable def realDensity (P : ℕ → Prop) (X : ℝ) : ℝ := …
- theorem
OAI.JointDickman.realDensity_tendsto_of_natline 26Source documentation
Integer-scale ordinary density gives the same limit through all real endpoints. The factor
floor X / Xaccounts for the change of normalization.theorem realDensity_tendsto_of_nat {P : ℕ → Prop} {L : ℝ} (h : Tendsto (empiricalDensity P) atTop (𝓝 L)) : Tendsto (realDensity P) atTop (𝓝 L) := by …Mentions: OAI.JointDickman.empiricalDensity, OAI.JointDickman.realDensity
- def
OAI.JointDickman.JointDickmanLawline 45Source documentation
Theorem 1 (
thm:main): the moving-threshold joint Dickman law, through all real endpoints with ordinary counting. Both powers use the basen.def JointDickmanLaw : Prop := …
- def
OAI.JointDickman.IncreasingOrderLawline 52Source documentation
Corollary 2 (
cor:comparison), first strict ordering.def IncreasingOrderLaw : Prop := …
- def
OAI.JointDickman.DecreasingOrderLawline 57Source documentation
The reverse ordering has the same density.
def DecreasingOrderLaw : Prop := …
- theorem
OAI.JointDickman.ordering_density_sumline 63Source documentation
The sum of the two strict-ordering densities has an exact elementary formula. No joint-distribution assertion is used here.
theorem ordering_density_sum (X : ℝ) : realDensity (fun n => n.maxPrimeFac < (n + 1).maxPrimeFac) X + realDensity (fun n => (n + 1).maxPrimeFac < n.maxPrimeFac) X = ((⌊X⌋₊ - 1 : ℕ) : ℝ) / X := by …Mentions: OAI.JointDickman.realDensity
- theorem
OAI.JointDickman.ordering_density_sum_tendstoline 69 - theorem
OAI.JointDickman.increasingOrderLaw_iff_decreasingOrderLawline 90Source documentation
It is enough to prove either ordering density. Complementarity supplies the other; this does not establish their common value independently.
theorem increasingOrderLaw_iff_decreasingOrderLaw : IncreasingOrderLaw ↔ DecreasingOrderLaw := by …Mentions: OAI.JointDickman.IncreasingOrderLaw, OAI.JointDickman.DecreasingOrderLaw