Theorems · Definition · category theory
CategoryTheory.MonoOver
{C : Type u₁} → [CategoryTheory.Category.{v₁, u₁} C] → C → Type (max u₁ v₁)The category of monomorphisms into X as a full subcategory of the over category.
This isn't skeletal, so it's not a partial order.
Later we define Subobject X as the quotient of this by isomorphisms.
- Cited by
- 115 results in Mathlib
- Foundations
- Depth 28 from the axioms, rests on 140 definitions · uses propext, Classical.choice, Quot.sound
- Assumes
- CategoryTheory.Category
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites3
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.ObjectProperty.FullSubcategoryproof · cited by 726
- CategoryTheory.Over.isMonoproof · cited by 111
Cited by190
Results whose statement or proof uses this declaration.
- CategoryTheory.Subobjectproof · cited by 385
- CategoryTheory.Subobject.mkproof · cited by 109
- CategoryTheory.Subobject.Factorsproof · cited by 56
- CategoryTheory.MonoOver.arrowstatement and proof · cited by 41
- CategoryTheory.MonoOver.mkstatement · cited by 33
- CategoryTheory.Abelian.Preradicalproof · cited by 32
- CategoryTheory.MonoOver.forgetstatement · cited by 23
- CategoryTheory.MonoOver.homMkstatement and proof · cited by 18
- CategoryTheory.Subobject.representativestatement · cited by 15
- CategoryTheory.Subobject.factors_iffstatement and proof · cited by 12
- CategoryTheory.MonoOver.mapstatement · cited by 12
- CategoryTheory.MonoOver.isoMkstatement and proof · cited by 9