proposition: Lemma lastelement_ge {n : nat} : ∏ i : ⟦S n⟧, @lastelement n ≥ i.
proof: Proof. intros. apply natlthsntoleh. unfold lastelement. apply stnlt. Defined.
imports: UniMath.Foundations.NaturalNumbers UniMath.MoreFoundations.Tactics UniMath.MoreFoundations.DecidablePropositions UniMath.MoreFoundations.NegativePropositions