def quasiArithMean (J : ℕ) (gen : QAGenerator) : AggFun J := fun x => gen.φ.invFun ((1 / J : ℝ) * ∑ j : Fin J, gen.φ (x j))
thesis/CESProofs/Foundations/Defs.lean:36
Core definitions for the Lean formalization of Paper 1: