fact: Definition coslice_precat : precategory := (_,,is_precategory_coslice_precat_data).
imports: UniMath.Foundations.PartA UniMath.Foundations.PartD UniMath.MoreFoundations.Tactics UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.DisplayedCats.Core UniMath.CategoryTheory.DisplayedCats.Total