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theorem proved term proof

phiScale_neg

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formal statement (Lean)

  81theorem phiScale_neg (n : ℤ) (x : ℝ) :
  82    phiScale (-n) (phiScale n x) = x := by

proof body

Term-mode proof.

  83  rw [phiScale_add, neg_add_cancel, phiScale_zero]
  84
  85/-! ## The φ-Ladder Hypothesis Class -/
  86
  87/-- A value is on the φ-ladder if it equals X₀ · φⁿ for some base X₀ and integer n. -/

depends on (14)

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