Theorems · Definition · category theory
CategoryTheory.ShiftedHom.comp
{C : Type u_1} →
[inst : CategoryTheory.Category.{v_1, u_1} C] →
{M : Type u_4} →
[inst_1 : AddMonoid M] →
[inst_2 : CategoryTheory.HasShift C M] →
{X Y Z : C} →
{a b c : M} →
CategoryTheory.ShiftedHom X Y a →
CategoryTheory.ShiftedHom Y Z b → b + a = c → CategoryTheory.ShiftedHom X Z cThe composition of f : X ⟶ Y⟦a⟧ and g : Y ⟶ Z⟦b⟧, as a morphism X ⟶ Z⟦c⟧
when b + a = c.
- Defined in
- Mathlib.CategoryTheory.Shift.ShiftedHom
- Cited by
- 54 results in Mathlib
- Foundations
- Depth 34 from the axioms · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites10
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.CategoryStruct.compproof · cited by 17,999
- CategoryTheory.Functor.mapproof · cited by 8,698
- CategoryTheory.NatTrans.appproof · cited by 7,406
- CategoryTheory.Iso.invproof · cited by 6,514
- AddMonoidstatement and proof · cited by 2,864
- CategoryTheory.shiftFunctorproof · cited by 1,553
- CategoryTheory.HasShiftstatement and proof · cited by 1,527
- CategoryTheory.shiftFunctorAdd'proof · cited by 95
- CategoryTheory.ShiftedHomstatement and proof · cited by 88
Cited by54
Results whose statement or proof uses this declaration.
- CategoryTheory.ShiftedHom.comp.congr_simpstatement and proof · cited by 37
- CategoryTheory.Abelian.Ext.comp_homstatement · cited by 27
- CategoryTheory.ShiftedHom.mk₀_compstatement · cited by 13
- CategoryTheory.ShiftedHom.comp_mk₀statement · cited by 11
- CategoryTheory.ShiftedHom.mk₀_comp_mk₀statement · cited by 10
- CategoryTheory.Localization.SmallShiftedHom.equiv_compstatement · cited by 9
- CategoryTheory.ShiftedHom.comp_assocstatement · cited by 7
- CategoryTheory.Abelian.Ext.zero_homproof · cited by 6
- CategoryTheory.ShiftedHom.mk₀_id_compstatement · cited by 6
- CategoryTheory.ShiftedHom.comp_mk₀_idstatement · cited by 5
- CategoryTheory.ShiftedHom.map_compstatement · cited by 5
- CategoryTheory.Abelian.Ext.mapExactFunctor_homproof · cited by 4