proposition: Lemma from_Kernel_to_Kernel_is_iso {y z : C} {g : y --> z} (K K' : Kernel g) : is_iso (from_Kernel_to_Kernel K K').
proof: Proof. apply (is_iso_qinv _ (from_Kernel_to_Kernel K' K)). apply are_inverses_from_Kernel_to_Kernel. Qed.
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Monics UniMath.CategoryTheory.Limits.Equalizers UniMath.CategoryTheory.Limits.Zero