def irsCES (J : ℕ) (ρ γ : ℝ) : (Fin J → ℝ) → ℝ := fun x => ((1 / J : ℝ) * ∑ j : Fin J, (x j) ^ ρ) ^ (γ / ρ)
thesis/CESProofs/Foundations/Defs.lean:56
Core definitions for the Lean formalization of Paper 1: