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lemma proved term proof

zero_normalization_forces_offset

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formal statement (Lean)

  64lemma zero_normalization_forces_offset
  65    {a c : ℝ}
  66    (h0 : gapAffineLogR a phi c 0 = 0) :
  67    c = 0 := by

proof body

Term-mode proof.

  68  simpa [gapAffineLogR] using h0
  69
  70/-! ## Step 2: g(1) = 1 forces a = 1/log(φ) (given c = 0 and b = φ) -/
  71

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