proposition: Lemma stnneq {n : nat} : neqReln (⟦n⟧).
proof: Proof. intros i j. exists (i ≠ j)%nat. split. - apply propproperty. - apply stn_ne_iff_neq. Defined.
imports: UniMath.Foundations.NaturalNumbers UniMath.MoreFoundations.Tactics UniMath.MoreFoundations.DecidablePropositions UniMath.MoreFoundations.NegativePropositions