OAI/Combinatorics/ProgressionColoring/UniformTransfer.lean
4 declarations, 0 contain sorry, 0 declared as axioms
- def
OAI.QuantitativeVanDerWaerden.CyclicLowerBoundline 12Source documentation
One threshold supplies actual avoiding cyclic colorings independently of the eventual number of colors. This is a proposition, not an axiom.
def CyclicLowerBound (c : ℝ) : Prop := …
- theorem
OAI.QuantitativeVanDerWaerden.uniform_lower_of_cyclicLowerBoundline 18Source documentation
The same cyclic coloring works for every number of digits.
theorem uniform_lower_of_cyclicLowerBound {c : ℝ} (hcyclic : CyclicLowerBound c) : ∃ K : ℕ, ∀ k ≥ K, ∀ r ≥ 2, (k : ℝ) ^ (c * k * (Nat.log 2 r : ℝ)) < (W r k : ℝ) := by … - theorem
OAI.QuantitativeVanDerWaerden.kthRoot_tendsto_of_cyclicLowerBoundline 36Source documentation
The fixed-color full limit from a proved cyclic construction.
theorem kthRoot_tendsto_of_cyclicLowerBound {c : ℝ} (hc : 0 < c) (hcyclic : CyclicLowerBound c) {r : ℕ} (hr : 2 ≤ r) : Tendsto (fun k : ℕ => (W r k : ℝ) ^ (1 / (k : ℝ))) atTop atTop := by … - theorem
OAI.QuantitativeVanDerWaerden.length_rate_tendsto_of_cyclicLowerBoundline 44Source documentation
The infimum over all color counts retains one absolute threshold.
theorem length_rate_tendsto_of_cyclicLowerBound {c : ℝ} (hc : 0 < c) (hcyclic : CyclicLowerBound c) : Tendsto (fun k : ℕ => ⨅ r : {r : ℕ // 2 ≤ r}, Real.log (W r.val k : ℝ) / ((k : ℝ) * Real.log (r.val : ℝ))) atTop atTop := by …