theorem
proved
term proof
speed_ratio_unity
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formal statement (Lean)
46theorem speed_ratio_unity : c_grav_RS / c_RS = 1 := by
proof body
Term-mode proof.
47 simp only [c_grav_RS, c_RS, div_one]
48
49/-- No separate gravitational "medium" with different propagation:
50 when c_grav = c_light and c_light ≠ 0, the ratio c_grav / c_light = 1. -/