fact: Definition iskfinite_isfinite {X : UU} : isfinite X → iskfinite X := hinhfun kfinstruct_finstruct.
imports: UniMath.Foundations.Propositions UniMath.MoreFoundations.PartA UniMath.MoreFoundations.Notations UniMath.Combinatorics.FiniteSets UniMath.Combinatorics.StandardFiniteSets