fact: Definition weqdnicompl {n : nat} (i: ⟦S n⟧ ): ⟦n⟧ ≃ stn_compl i.
imports: UniMath.Foundations.NaturalNumbers UniMath.MoreFoundations.Tactics UniMath.MoreFoundations.DecidablePropositions UniMath.MoreFoundations.NegativePropositions