Definition kernelEquation {C:category} {zero:ZeroMaps C} {c d:ob C} {f:c --> d} (ker : Kernel zero f) : f ∘ kernelMap ker = pr1 zero _ _ := pr2 (universalElement ker).
Require Import UniMath.Foundations.Preamble. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Isos. Require Import UniMath.CategoryTheory.Core.Functors. Require Import UniMath.CategoryTheory.Core.Univalence. Require Import Require Import Require Import UniMath.MoreFoundations.Tactics.