Theorems · Definition · category theory
CategoryTheory.Limits.isColimitMapCoconeEmptyCoconeEquiv
{C : Type u₁} →
[inst : CategoryTheory.Category.{v₁, u₁} C] →
{D : Type u₂} →
[inst_1 : CategoryTheory.Category.{v₂, u₂} D] →
(G : CategoryTheory.Functor C D) →
(X : C) →
CategoryTheory.Limits.IsColimit (G.mapCocone (CategoryTheory.Limits.asEmptyCocone X)) ≃
CategoryTheory.Limits.IsInitial (G.obj X)The map of an empty cocone is a colimit iff the mapped object is initial.
- Cited by
- 1 results in Mathlib
- Foundations
- Depth 32 from the axioms · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites13
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- CategoryTheory.Categorystatement and proof · cited by 32,673
- CategoryTheory.Functor.objstatement and proof · cited by 19,642
- CategoryTheory.Functorstatement and proof · cited by 16,252
- Equivstatement · cited by 8,337
- CategoryTheory.Functor.compstatement · cited by 6,529
- CategoryTheory.Discretestatement · cited by 2,447
- CategoryTheory.Limits.IsColimitstatement · cited by 773
- CategoryTheory.Functor.mapCoconestatement and proof · cited by 161
- CategoryTheory.Limits.IsInitialstatement · cited by 158
- CategoryTheory.Functor.emptystatement · cited by 103
- CategoryTheory.eqToIsoproof · cited by 97
- CategoryTheory.Limits.asEmptyCoconestatement and proof · cited by 6
Cited by3
Results whose statement or proof uses this declaration.
- CategoryTheory.Limits.IsInitial.isInitialObjproof · cited by 4
- CategoryTheory.Limits.IsInitial.isInitialOfObjproof · cited by 2
- CategoryTheory.Limits.PreservesInitial.of_iso_comparisonproof · cited by 1