theorem
proved
term proof
volumeCoeff_in_range
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formal statement (Lean)
92theorem volumeCoeff_in_range :
93 (14 : ℝ) < volumeCoeff ∧ volumeCoeff < 17 := by
proof body
Term-mode proof.
94 unfold volumeCoeff; norm_num
95
96/-- Surface coefficient is larger than volume coefficient. -/