Lemma iscontr_empty_tuple (A : UU) : iscontr (stn 0 → A). Proof. exists (weqvecfun 0 vnil). abstract ( intro v; apply funextfun; intro i; apply fromstn0; exact i ). Defined.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.Combinatorics.StandardFiniteSets. Require Import UniMath.Combinatorics.Vectors.