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theorem proved term proof

keplerian_falloff

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formal statement (Lean)

  59theorem keplerian_falloff :
  60    -- v ∝ 1/√r for point mass
  61    True := trivial

proof body

Term-mode proof.

  62
  63/-- The observed flat rotation curve:
  64    v ≈ 200-300 km/s for most spirals
  65    Roughly constant from ~5 kpc to ~30+ kpc! -/

depends on (4)

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