Theorems · Definition · category theory
CategoryTheory.PreOneHypercover.toPullback
{C : Type u} →
[inst : CategoryTheory.Category.{v, u} C] →
{S : C} →
(E : CategoryTheory.PreOneHypercover S) →
{i₁ i₂ : E.I₀} →
[inst_1 : CategoryTheory.Limits.HasPullback (E.f i₁) (E.f i₂)] →
(j : E.I₁ i₁ i₂) → E.Y j ⟶ CategoryTheory.Limits.pullback (E.f i₁) (E.f i₂)The obvious morphism E.Y j ⟶ pullback (E.f i₁) (E.f i₂) given by E : PreOneHypercover S.
- Cited by
- 16 results in Mathlib
- Foundations
- Depth 25 from the axioms · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites15
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 · cited by 32,603
- CategoryTheory.Limits.pullbackstatement · cited by 864
- CategoryTheory.PreZeroHypercover.I₀statement and proof · cited by 763
- CategoryTheory.PreZeroHypercover.Xstatement · cited by 649
- CategoryTheory.PreZeroHypercover.fstatement and proof · cited by 542
- CategoryTheory.Limits.HasPullbackstatement and proof · cited by 434
- CategoryTheory.PreOneHypercover.toPreZeroHypercoverstatement and proof · cited by 232
- CategoryTheory.PreOneHypercoverstatement and proof · cited by 180
- CategoryTheory.PreOneHypercover.I₁statement and proof · cited by 143
- CategoryTheory.Limits.pullback.liftproof · cited by 114
- CategoryTheory.PreOneHypercover.Ystatement · cited by 113
Cited by22
Results whose statement or proof uses this declaration.
- CategoryTheory.PreOneHypercover.cylinderproof · cited by 17
- CategoryTheory.PreOneHypercover.sieve₁'proof · cited by 9
- CategoryTheory.PreOneHypercover.cylinderfproof · cited by 8
- CategoryTheory.PreOneHypercover.cylinderXproof · cited by 7
- CategoryTheory.PreOneHypercover.cylinderHomproof · cited by 6
- CategoryTheory.PreOneHypercover.sieve₁_eq_pullback_sieve₁'proof · cited by 2
- CategoryTheory.PreOneHypercover.cylinderHomotopyproof · cited by 2
- CategoryTheory.PreOneHypercover.toPullback_cylinderstatement · cited by 1
- CategoryTheory.PreOneHypercover.toPullback_fststatement · cited by 1
- CategoryTheory.PreOneHypercover.toPullback_sndstatement · cited by 1
- CategoryTheory.PreOneHypercover.sieve₀_cylinderproof · cited by 0
- CategoryTheory.PreOneHypercover.sieve₁'_cylinderstatement and proof · cited by 0