Definition make_Under_ob {d : ob C} (f : C⟦c, d⟧) : Under_ob := tpair _ d f.
Require Import UniMath.Foundations.PartD. Require Import UniMath.Foundations.Propositions. Require Import UniMath.Foundations.Sets. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Functors.