OAI/NumberTheory/EgyptianFractions/DenominatorBound.lean

GitHub source file

4 declarations, 0 contain sorry, 0 declared as axioms

  1. theorem OAI.Problem337.ordered_unit_tail_bound line 11
  2. theorem OAI.Problem337.denominator_le_prefix_product line 49
  3. theorem OAI.Problem337.ordered_unit_denominator_bound line 65

    Source documentation

    The coordinate estimate only needs weak ordering, so it also applies to expansions with repeated denominators.

    theorem ordered_unit_denominator_bound {k : ℕ} (n : Fin k → ℕ)
        (hn : ∀ i, 0 < n i) (hmono : Monotone n)
        (hsum : (∑ j : Fin k, (1 : ℚ) / n j) = 1) :
        ∀ i : Fin k, n i ≤ k ^ (2 ^ i.val) := by
    …
  4. theorem OAI.Problem337.one_expansion_denominator_bound line 109