Theorems · Definition · category theory
CategoryTheory.ObjectProperty.IsDetecting
{C : Type u₁} → [inst : CategoryTheory.Category.{v₁, u₁} C] → CategoryTheory.ObjectProperty C → PropWe say that P : ObjectProperty C is detecting if the functors C(G, -)
for G : C such that P G collectively reflect isomorphisms,
i.e., if any h with domain G that P G uniquely factors through f,
then f is an isomorphism.
- Defined in
- Mathlib.CategoryTheory.Generator.Basic
- Cited by
- 20 results in Mathlib
- Foundations
- Depth 3 from the axioms · uses no axioms
- Assumes
- CategoryTheory.Category
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.
- CategoryTheory.Categorystatement and proof · cited by 32,673
- Quiver.Homproof · cited by 32,603
- CategoryTheory.CategoryStruct.compproof · cited by 17,999
- CategoryTheory.IsIsoproof · cited by 1,156
- CategoryTheory.ObjectPropertystatement and proof · cited by 798
- ExistsUniqueproof · cited by 268
Cited by21
Results whose statement or proof uses this declaration.
- CategoryTheory.IsDetectorproof · cited by 15
- CategoryTheory.ObjectProperty.IsSeparating.isDetectingstatement · cited by 4
- CategoryTheory.ObjectProperty.IsDetecting.isSeparatingstatement and proof · cited by 3
- CategoryTheory.ObjectProperty.isDetecting_op_iffstatement and proof · cited by 2
- CategoryTheory.wellPowered_of_isDetectingstatement and proof · cited by 2
- CategoryTheory.ObjectProperty.isCodetecting_op_iffstatement and proof · cited by 2
- CategoryTheory.ObjectProperty.isDetecting_unop_iffstatement · cited by 1
- CategoryTheory.isCodetector_op_iffproof · cited by 1
- CategoryTheory.isCodetector_unop_iffproof · cited by 1
- CategoryTheory.ObjectProperty.IsDetecting.isIso_iff_of_monostatement and proof · cited by 1
- CategoryTheory.Subobject.inf_eq_of_isDetectingstatement and proof · cited by 1
- CategoryTheory.Subobject.eq_of_isDetectingstatement and proof · cited by 1