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frequencyRatioCost_nonneg

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formal statement (Lean)

  40theorem frequencyRatioCost_nonneg {r : ℝ} (hr : 0 < r) :
  41    0 ≤ frequencyRatioCost r :=

proof body

Term-mode proof.

  42  Jcost_nonneg hr
  43
  44/-! ## φ as Minimal-Cost Non-Trivial Ratio -/
  45
  46/-- A self-similar ratio satisfies r² = r + 1 (the defining equation of φ). -/

depends on (17)

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