OAI/Combinatorics/ProgressionColoring/AffineEntropyNat.lean

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1 declarations, 0 contain sorry, 0 declared as axioms

Entropy bound for a possibly empty finite signature set

The natural count may vanish. Taking its maximum with one lets the same uniform entropy bound feed the sparse-perturbation budget in that case.

  1. theorem OAI.QuantitativeVanDerWaerden.Parameters.affine_nat_entropy_bound line 18

    Source documentation

    Natural signature counts obey the maximum-with-one entropy bound, including the empty signature set. The finite counting premise is used unchanged.

    theorem affine_nat_entropy_bound {k T : ℕ} (hk : 32 ≤ k)
        {G q A : ℝ} (hG : 1 ≤ G) (hq : 1 ≤ q) (hA : 0 ≤ A)
        (hcount : (T : ℝ) ≤ 25 * G *
          ((k : ℝ) * ((dimension k : ℝ) * q ^ 2 + 1) + 1) ^ 8)
        (hglobal : Real.log G ≤
          A * (k : ℝ) ^ (3 / 10 : ℝ) * Real.log (k : ℝ))
        (hprime : Real.log q ≤
          4 * (k : ℝ) ^ (9 / 10 : ℝ) * Real.log (k : ℝ)) :
        Real.log (max 1 (T : ℝ)) ≤
          (A + 108) * (k : ℝ) ^ (9 / 10 : ℝ) * Real.log (k : ℝ) := by
    …

    Mentions: OAI.QuantitativeVanDerWaerden.Parameters.dimension