theorem cesInner_symmetric {α ρ x : ℝ} (_hα : 0 < α) (_hα1 : α < 1) : cesInner α ρ x x = x ^ ρ := by simp only [cesInner] have : α + (1 - α) = 1 := by ring nlinarith
thesis/CESProofs/Macro/TwoFactorCES.lean:103
Two-Factor CES Production Function (Layer 1 of Macro Extension)