OAI/NumberTheory/EgyptianFractions/PrimeProductGrowth.lean

GitHub source file

11 declarations, 0 contain sorry, 0 declared as axioms

  1. lemma OAI.Problem337.eventually_primeCounting_ge_linear_div_log line 13

    Source documentation

    Chebyshev's elementary bounds give the lower prime-density estimate needed for the size of the first-prime product. No prime number theorem is used.

    lemma eventually_primeCounting_ge_linear_div_log :
        ∀ᶠ x : ℝ in atTop,
          (Real.log 2 / 2) * x / Real.log x ≤ (Nat.primeCounting ⌊x⌋₊ : ℝ) := by
    …
  2. lemma OAI.Problem337.eventually_nth_prime_le_rpow line 30
  3. lemma OAI.Problem337.primePrefixProduct_dvd_of_le line 66
  4. lemma OAI.Problem337.eventually_log_primePrefixProduct_le_growth line 72

    Source documentation

    The sharp leading coefficient in the logarithm of a prime-prefix product needs only Chebyshev's lower prime-counting estimate.

    lemma eventually_log_primePrefixProduct_le_growth (δ : ℝ) (hδ : 0 < δ) :
        ∀ᶠ n : ℕ in atTop,
          Real.log (primePrefixProduct n : ℝ) ≤ (1 + δ) * (n : ℝ) * Real.log (n : ℝ) := by
    …

    Mentions: OAI.Problem337.primePrefixProduct

  5. lemma OAI.Problem337.tendsto_log_natCeil_mul_div_log line 96
  6. lemma OAI.Problem337.eventually_log_primePrefixProduct_ceil_le line 113

    Source documentation

    A directly usable prime-product bound at the logarithmic number of primes required by rational-divisor supply.

    lemma eventually_log_primePrefixProduct_ceil_le (A ε : ℝ) (hA : 0 < A) (hε : 0 < ε) :
        ∀ᶠ x : ℝ in atTop,
          Real.log (primePrefixProduct ⌈A * x⌉₊ : ℝ) ≤ (A + ε) * x * Real.log x := by
    …

    Mentions: OAI.Problem337.primePrefixProduct

  7. lemma OAI.Problem337.log_factorial_natFloor_le_sq line 140
  8. def OAI.Problem337.markedSupplyMultiplier line 152

    Source documentation

    The supply multiplier from the marked-denominator construction, with the prime count already simplified using log (m^4) = 4 log m.

    def markedSupplyMultiplier (m : ℕ) : ℕ :=
    …
  9. lemma OAI.Problem337.markedSupplyMultiplier_pos line 156
  10. lemma OAI.Problem337.eventually_log_markedSupplyMultiplier_le line 159
  11. lemma OAI.Problem337.lt_markedSupplyMultiplier line 194