Theorems · Definition · category theory
CategoryTheory.Subobject.wideCospan
{C : Type u₁} →
[inst : CategoryTheory.Category.{v₁, u₁} C] →
[inst_1 : CategoryTheory.LocallySmall.{w, v₁, u₁} C] →
[inst_2 : CategoryTheory.WellPowered.{w, v₁, u₁} C] →
{A : C} →
(s : Set (CategoryTheory.Subobject A)) →
CategoryTheory.Functor
(CategoryTheory.Limits.WidePullbackShape ↑(⇑(equivShrink (CategoryTheory.Subobject A)) '' s)) CThe "wide cospan" diagram, with a small indexing type, constructed from a set of subobjects.
(This is just the diagram of all the subobjects pasted together, but using WellPowered C
to make the diagram small.)
- Defined in
- Mathlib.CategoryTheory.Subobject.Lattice
- Cited by
- 4 results in Mathlib
- Foundations
- Depth 38 from the axioms · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites18
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- DFunLike.coestatement and proof · cited by 62,936
- Setstatement and proof · cited by 53,352
- CategoryTheory.Categorystatement and proof · cited by 32,673
- CategoryTheory.Functor.objproof · cited by 19,642
- CategoryTheory.Functorstatement · cited by 16,252
- Equivstatement · cited by 8,337
- Set.Elemstatement and proof · cited by 7,166
- Set.imagestatement and proof · cited by 5,609
- Equiv.symmproof · cited by 3,681
- CategoryTheory.Subobjectstatement and proof · cited by 385
- CategoryTheory.LocallySmallstatement and proof · cited by 242
- CategoryTheory.Subobject.underlyingproof · cited by 211
Cited by7
Results whose statement or proof uses this declaration.
- CategoryTheory.Subobject.widePullbackιproof · cited by 2
- CategoryTheory.Subobject.widePullbackproof · cited by 2
- CategoryTheory.Subobject.leInfConestatement · cited by 2
- CategoryTheory.Subobject.leInfCone_π_app_nonestatement · cited by 1
- CategoryTheory.Subobject.wideCospan_map_termstatement · cited by 0
- CategoryTheory.Subobject.sInf_leproof · cited by 0
- CategoryTheory.Subobject.le_sInfproof · cited by 0