proposition: Lemma KernelArrowisMonic {y z : C} {g : y --> z} (K : Kernel g) : isMonic (KernelArrow K).
proof: Proof. apply make_isMonic. intros z0 g0 h X. use KernelInsEq. exact X. Defined.
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