fact: Definition functor_on_zig_zag {C₁ C₂ : category} (F : C₁ ⟶ C₂) {x y : C₁} (gs : zig_zag x y) : zig_zag (F x) (F y) := length_of_zig_zag gs ,, functor_on_zig_zag_of_length F (pr2 gs).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Groupoids