fact: Definition unitary_to_mor {C : category} {dag : dagger_structure C} {x y : C} (u : unitary dag x y) : C⟦x,y⟧ := pr1 u.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.DaggerCategories.Categories