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Theorems · Definition · category theory

CategoryTheory.Pretriangulated.Triangle.mk

{C : Type u} →
  [inst : CategoryTheory.Category.{v, u} C] →
    [inst_1 : CategoryTheory.HasShift C ℤ] →
      {X Y Z : C} →
        (X ⟶ Y) → (Y ⟶ Z) → (Z ⟶ (CategoryTheory.shiftFunctor C 1).obj X) → CategoryTheory.Pretriangulated.Triangle C

A triangle (X,Y,Z,f,g,h) in C is defined by the morphisms f : X ⟶ Y, g : Y ⟶ Z and h : Z ⟶ X⟦1⟧.

Defined in
Mathlib.CategoryTheory.Triangulated.Basic
Cited by
183 results in Mathlib
Foundations
Depth 33 from the axioms, rests on 308 definitions · uses propext, Classical.choice, Quot.sound
Assumes
CategoryTheory.CategoryCategoryTheory.HasShift

Around this declaration

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

CategoryTheory.Functor.mapTriangle · cited by 87Functor.mapTriangleCochainComplex.mappingCone.triangle · cited by 48mappingCone.triangleCategoryTheory.Pretriangulated.Triangle.rotate · cited by 43Triangle.rotateCategoryTheory.Pretriangulated.Triangle.invRotate · cited by 38Triangle.invRotateCategoryTheory.Triangulated.Octahedron · cited by 34Triangulated.OctahedronCategoryTheory.ObjectProperty.trW · cited by 32ObjectProperty.trWCategoryTheory.Pretriangulated.Triangle.shiftFunctor · cited by 31Triangle.shiftFunctorCategoryTheory.Pretriangulated.contractibleTriangle · cited by 27Pretriangulated.contracti…CategoryTheory.ShortComplex.ShortExact.singleTriangle · cited by 26ShortExact.singleTriangleCategoryTheory.Triangulated.Octahedron' · cited by 25Triangulated.Octahedron'CategoryTheory.ObjectProperty.extensionProduct · cited by 24ObjectProperty.extensionP…CochainComplex.mappingConeCompTriangle · cited by 20CochainComplex.mappingCon…CategoryTheory.Pretriangulated.distinguished_cocone_triangle · cited by 20Pretriangulated.distingui…DerivedCategory.triangleOfSES · cited by 17DerivedCategory.triangleO…CategoryTheory.Pretriangulated.Triangle.functorMk · cited by 16Triangle.functorMkCategoryTheory.Category · cited by 32673CategoryTheory.CategoryQuiver.Hom · cited by 32603Quiver.HomCategoryTheory.Functor.obj · cited by 19642Functor.objCategoryTheory.shiftFunctor · cited by 1553CategoryTheory.shiftFunct…CategoryTheory.HasShift · cited by 1527CategoryTheory.HasShiftCategoryTheory.Pretriangulated.Triangle · cited by 645Pretriangulated.TriangleTriangle.mkCITED BYCITES

Cites6

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Cited by256

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