theorem
proved
term proof
schwarzschild_entropy_eq
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formal statement (Lean)
141theorem schwarzschild_entropy_eq (M : ℝ) :
142 schwarzschild_entropy M = 4 * Real.pi * M ^ 2 := by
proof body
Term-mode proof.
143 unfold schwarzschild_entropy bekenstein_hawking_entropy
144 ring
145
146/-- Entropy increases with mass (second law). -/