Lemma assoc_seq_to_fun : isAssociative_seq → isAssociative_fun. Proof. intros assoc n m x. exact (assoc (functionToSequence (λ i, functionToSequence (x i)))). Defined.
Require Import UniMath.MoreFoundations.Tactics. Require Import UniMath.Algebra.Groups. Require Import UniMath.MoreFoundations.NegativePropositions.