Theorems · Definition · category theory
CategoryTheory.Limits.Sigma.desc
{β : Type w} →
{C : Type u} →
[inst : CategoryTheory.Category.{v, u} C] →
{f : β → C} → [inst_1 : CategoryTheory.Limits.HasCoproduct f] → {P : C} → ((b : β) → f b ⟶ P) → (∐ f ⟶ P)A collection of morphisms f b ⟶ P induces a morphism ∐ f ⟶ P.
- Cited by
- 76 results in Mathlib
- Foundations
- Depth 24 from the axioms · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites7
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
- Quiver.Homstatement and proof · cited by 32,603
- CategoryTheory.Discrete.functorproof · cited by 633
- CategoryTheory.Limits.sigmaObjstatement · cited by 302
- CategoryTheory.Limits.HasCoproductstatement and proof · cited by 143
- CategoryTheory.Limits.Cofan.mkproof · cited by 105
- CategoryTheory.Limits.colimit.descproof · cited by 63
Cited by120
Results whose statement or proof uses this declaration.
- CategoryTheory.SmallObject.functorObjTopproof · cited by 29
- CategoryTheory.Limits.Sigma.map'proof · cited by 24
- SSet.Subcomplex.Pairing.RankFunction.bproof · cited by 13
- CategoryTheory.Limits.CoproductsFromFiniteFiltered.liftToFinsetObjproof · cited by 13
- CategoryTheory.Limits.Sigma.ι_descstatement · cited by 13
- AlgebraicGeometry.Scheme.Cover.sigmaproof · cited by 12
- SSet.relativeCellComplexOfMono.bproof · cited by 12
- SSet.Subcomplex.Pairing.RankFunction.tproof · cited by 9
- CategoryTheory.Limits.Sigma.πproof · cited by 9
- AlgebraicTopology.DoldKan.Γ₀.Obj.mapproof · cited by 9
- CategoryTheory.Limits.sigmaComparisonproof · cited by 8
- AlgebraicGeometry.sigmaSpecproof · cited by 7