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theorem proved term proof

scale_at_zero

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formal statement (Lean)

  82theorem scale_at_zero : phiLadderScale 0 = 1 := by

proof body

Term-mode proof.

  83  unfold phiLadderScale; norm_num
  84
  85/-- **THEOREM**: Scale at rung 1 is φ. -/

depends on (10)

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