Theorems · Definition · category theory
CategoryTheory.Bicategory.LeftExtension.IsKan.desc
{B : Type u} →
[inst : CategoryTheory.Bicategory B] →
{a b c : B} →
{f : a ⟶ b} →
{g : a ⟶ c} →
{t : CategoryTheory.Bicategory.LeftExtension f g} →
t.IsKan → (s : CategoryTheory.Bicategory.LeftExtension f g) → t.extension ⟶ s.extensionThe family of 2-morphisms out of a left Kan extension.
- Cited by
- 7 results in Mathlib
- Foundations
- Depth 28 from the axioms · uses propext, Classical.choice, Quot.sound
- Assumes
- CategoryTheory.Bicategory
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites6
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Quiver.Homstatement and proof · cited by 32,603
- CategoryTheory.Bicategorystatement and proof · cited by 1,587
- CategoryTheory.Bicategory.LeftExtensionstatement and proof · cited by 29
- CategoryTheory.Bicategory.LeftExtension.extensionstatement · cited by 19
- CategoryTheory.Bicategory.LeftExtension.IsKanstatement and proof · cited by 9
- CategoryTheory.StructuredArrow.IsUniversal.descproof · cited by 5
Cited by11
Results whose statement or proof uses this declaration.
- CategoryTheory.Bicategory.lanDescproof · cited by 5
- CategoryTheory.Bicategory.LeftExtension.IsKan.facstatement · cited by 2
- CategoryTheory.Bicategory.LeftExtension.IsKan.adjunctionproof · cited by 1
- CategoryTheory.Bicategory.LeftExtension.IsKan.uniqueUpToIso_hom_rightstatement · cited by 0
- CategoryTheory.Bicategory.LeftExtension.IsKan.uniqueUpToIso_inv_rightstatement · cited by 0
- CategoryTheory.Bicategory.lanIsKan_descstatement · cited by 0
- CategoryTheory.Bicategory.LeftExtension.isKanOfWhiskerLeftAdjointproof · cited by 0
- CategoryTheory.Bicategory.LeftExtension.IsAbsKan.descproof · cited by 0
- CategoryTheory.Bicategory.Lan.CommuteWith.lanCompIsoWhisker_inv_rightstatement · cited by 0
- CategoryTheory.Bicategory.Lan.CommuteWith.lanCompIso_invstatement · cited by 0
- CategoryTheory.Bicategory.LeftExtension.IsKan.fac_assocstatement and proof · cited by 0