theorem
proved
term proof
rotational_flatness_implies_positive_vflat
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formal statement (Lean)
38theorem rotational_flatness_implies_positive_vflat (P : Params) (r : ℝ)
39 (hα : P.alpha > 0) :
40 ∃ v_flat : ℝ, v_flat > 0 := by
proof body
Term-mode proof.
41 rcases rotational_flatness_forced P r hα with ⟨v_flat, hv, _hrest⟩
42 exact ⟨v_flat, hv⟩
43
44/-- Rotational-flatness structure excludes a zero asymptotic velocity scale. -/