theorem perCapitaBenefit_pos {J ρ c : ℝ} (hJ : 0 < J) (hc : 0 < c) : 0 < perCapitaBenefit J ρ c := by simp only [perCapitaBenefit] exact mul_pos (rpow_pos_of_pos hJ _) hc
thesis/CESProofs/EntryExit/Calculus.lean:60
Paper 1c: Formal Calculus on K(J) and V(J)