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def definition def or abbrev

dynamicalTime

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formal statement (Lean)

  69noncomputable def dynamicalTime (G_N M r : ℝ) : ℝ :=

proof body

Definition body.

  70  2 * Real.pi * Real.sqrt (r ^ 3 / (G_N * M))
  71
  72/-- Newtonian acceleration at radius r: a = GM/r². -/

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