fact: Definition isCommutative_fun := ∏ n (x:⟦n⟧ -> X) (f:⟦n⟧≃⟦n⟧), iterop_fun (x ∘ f) = iterop_fun x.
imports: UniMath.Combinatorics.Lists UniMath.Combinatorics.FiniteSequences UniMath.Algebra.RigsAndRings UniMath.Foundations.UnivalenceAxiom UniMath.MoreFoundations.Tactics UniMath.Algebra.Groups UniMath.MoreFoundations.NegativePropositions