theorem escortRawMoment_zero [NeZero J]
(x : Fin J → ℝ) (hx : ∀ j, 0 < x j) (ρ : ℝ) :
escortRawMoment x ρ 0 = 1 := by
simp only [escortRawMoment, escortPartitionZn_zero]
exact div_self (ne_of_gt (escortPartitionZ_pos x hx ρ))The Cumulant Tower: Higher-Order Bridges Between CES and Escort Statistics