Small classes of morphisms #
A class of morphisms W : MorphismProperty C is w-small
if the corresponding set in Set (Arrow C) is.
class CategoryTheory.MorphismProperty.IsSmall {C : Type u} [Category.{v, u} C] (W : MorphismProperty C) :
A class of morphisms W : MorphismProperty C is w-small
if the corresponding set in Set (Arrow C) is.
- small_toSet : Small.{w, max u v} ↑W.toSet
Instances
instance CategoryTheory.MorphismProperty.isSmall_ofHoms {C : Type u} [Category.{v, u} C] {ι : Type t} [Small.{w, t} ι] {A B : ι → C} (f : (i : ι) → A i ⟶ B i) :
theorem CategoryTheory.MorphismProperty.isSmall_iff_eq_ofHoms {C : Type u} [Category.{v, u} C] (W : MorphismProperty C) :
instance CategoryTheory.MorphismProperty.isSmall_iSup {C : Type u} [Category.{v, u} C] {α : Type u_1} (W : α → MorphismProperty C) [Small.{w, u_1} α] [∀ (a : α), IsSmall.{w, v, u} (W a)] :
instance CategoryTheory.MorphismProperty.instIsSmallISupOfSmall {C : Type u} [Category.{v, u} C] {α : Type t} [Small.{w, t} α] (W : α → MorphismProperty C) [∀ (i : α), IsSmall.{w, v, u} (W i)] :
IsSmall.{w, v, u} (⨆ (i : α), W i)