theorem concentration_erodes_complementarity {ρ H : ℝ} {J : ℕ}
(hρ : ρ < 1) (hJ : (0 : ℝ) < J) (hH : 1 / (J : ℝ) < H) :
(1 - ρ) * (1 - H) < (1 - ρ) * ((J - 1 : ℝ) / J) := by
apply mul_lt_mul_of_pos_left _ (by linarith : (0 : ℝ) < 1 - ρ)
have : (J - 1 : ℝ) / J = 1 - 1 / J := by field_simp
linarithCES Inequality Decomposition