theorem curvatureKReal_pos {J ρ : ℝ} (hJ : 1 < J) (hρ : ρ < 1) : 0 < curvatureKReal J ρ := by simp only [curvatureKReal] apply div_pos · exact mul_pos (by linarith) (by linarith) · linarith
thesis/CESProofs/EntryExit/CurvatureInJ.lean:76
Paper 1c, Section 2: K(J) as the Network Engine