proposition: Lemma weqoverdnicoprod_eq1 {n : nat} (P: ⟦S n⟧ → UU) j p : invmap (weqoverdnicoprod P) (ii1 (j,,p)) = ( dni lastelement j ,, p ).
proof: Proof. intros. simpl in p. apply idpath. Defined.
imports: UniMath.Foundations.NaturalNumbers UniMath.MoreFoundations.Tactics UniMath.MoreFoundations.DecidablePropositions UniMath.MoreFoundations.NegativePropositions