Definition zeroMap' (C:category) (a b:ob C) (o:ZeroObject C) : Hom C a b := (zero_to_initial C o \\ tt) ∘ (zero_to_terminal C o \\ tt).
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.