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theorem proved term proof

rescaleLength_pos

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formal statement (Lean)

  95theorem rescaleLength_pos (a : ℕ → ℝ) (n : ℕ) (h : 0 < a n) :
  96    0 < rescaleLength a n := by

proof body

Term-mode proof.

  97  unfold rescaleLength
  98  apply div_pos one_pos
  99  exact Real.sqrt_pos.mpr (runningMax_pos a n h)
 100
 101/-- The rescaling factor tends to 0 as the running max diverges. -/

depends on (3)

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