proposition: Proposition eq_mor_cod_fib {y : C} {f₁ f₂ : C/y} {g₁ g₂ : f₁ --> f₂} (p : dom_mor g₁ = dom_mor g₂) : g₁ = g₂.
proof: Proof. use eq_cod_mor. exact p. Qed.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Prelude UniMath.CategoryTheory.Adjunctions.Core UniMath.CategoryTheory.Equivalences.Core UniMath.CategoryTheory.Limits.Terminal UniMath.CategoryTheory.Limits.Pullbacks UniMath.CategoryTheory.DisplayedCats.Core UniMath.CategoryTheory.DisplayedCats.Fibrations UniMath.CategoryTheory.DisplayedCats.Fiber UniMath.CategoryTheory.DisplayedCats.Codomain