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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 c

The 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
Assumes
CategoryTheory.CategoryAddMonoidCategoryTheory.HasShift

Around this declaration

Dashed lines are statement dependencies; solid lines are citations in proofs.

CategoryTheory.ShiftedHom.comp.congr_simp · cited by 37comp.congr_simpCategoryTheory.Abelian.Ext.comp_hom · cited by 27Ext.comp_homCategoryTheory.ShiftedHom.mk₀_comp · cited by 13ShiftedHom.mk₀_compCategoryTheory.ShiftedHom.comp_mk₀ · cited by 11ShiftedHom.comp_mk₀CategoryTheory.ShiftedHom.mk₀_comp_mk₀ · cited by 10ShiftedHom.mk₀_comp_mk₀CategoryTheory.Localization.SmallShiftedHom.equiv_comp · cited by 9SmallShiftedHom.equiv_compCategoryTheory.ShiftedHom.comp_assoc · cited by 7ShiftedHom.comp_assocCategoryTheory.Abelian.Ext.zero_hom · cited by 6Ext.zero_homCategoryTheory.ShiftedHom.mk₀_id_comp · cited by 6ShiftedHom.mk₀_id_compCategoryTheory.ShiftedHom.comp_mk₀_id · cited by 5ShiftedHom.comp_mk₀_idCategoryTheory.ShiftedHom.map_comp · cited by 5ShiftedHom.map_compCategoryTheory.Abelian.Ext.mapExactFunctor_hom · cited by 4Ext.mapExactFunctor_homCategoryTheory.ShiftedHom.comp_add · cited by 4ShiftedHom.comp_addCategoryTheory.Abelian.Ext.add_hom · cited by 4Ext.add_homCategoryTheory.InjectiveResolution.extEquivCohomologyClass_symm_mk_hom · cited by 3InjectiveResolution.extEq…CategoryTheory.Category · cited by 32673CategoryTheory.CategoryCategoryTheory.CategoryStruct.comp · cited by 17999CategoryStruct.compCategoryTheory.Functor.map · cited by 8698Functor.mapCategoryTheory.NatTrans.app · cited by 7406NatTrans.appCategoryTheory.Iso.inv · cited by 6514Iso.invAddMonoid · cited by 2864AddMonoidCategoryTheory.shiftFunctor · cited by 1553CategoryTheory.shiftFunct…CategoryTheory.HasShift · cited by 1527CategoryTheory.HasShiftCategoryTheory.shiftFunctorAdd' · cited by 95CategoryTheory.shiftFunct…CategoryTheory.ShiftedHom · cited by 88CategoryTheory.ShiftedHomShiftedHom.compCITED BYCITES

Cites10

Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.

Cited by54

Results whose statement or proof uses this declaration.