theorem threshold_pos_substitutes {ρ : ℝ} (hρ : 1 < ρ) : 0 < stabilityThreshold ρ := by unfold stabilityThreshold exact div_pos (by linarith) (by linarith)
thesis/CESProofs/CurvatureRoles/GameTheory.lean:216
Multi-Agent CES Game Theory (Gap #14)