fact: Definition iso_Zeros (Z Z' : Zero) : iso (ZeroObject Z) (ZeroObject Z') := tpair _ (ZeroArrowFrom Z (ZeroObject Z')) (isiso_from_Zero_to_Zero Z Z').
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Limits.Graphs.Colimits UniMath.CategoryTheory.Limits.Graphs.Limits UniMath.CategoryTheory.Limits.Graphs.Initial UniMath.CategoryTheory.Limits.Graphs.Terminal UniMath.CategoryTheory.Limits.Zero