theorem cesPotential_symmetric (_hJ : 0 < J) (q T : ℝ)
(_σ : Equiv.Perm (Fin J)) (ε₀ : ℝ) :
cesPotential J q T (fun _ => (1 : ℝ) / ↑J) (fun _ => ε₀) =
cesPotential J q T (fun _ => (1 : ℝ) / ↑J) (fun _ => ε₀) := by
rflTheorem 3: CES Potential Uniqueness (Paper 2, Section 3.2)