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CategoryTheory\Monoidal\Subcategory.lean
/- Copyright (c) 2022 Antoine Labelle. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Antoine Labelle -/ import Mathlib.CategoryTheory.Monoidal.Braided.Basic import Mathlib.CategoryTheory.Monoidal.Linear import Mathlib.CategoryTheory.Monoidal.Transport import Mathlib.C...
CategoryTheory\Monoidal\Tor.lean
/- Copyright (c) 2021 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison -/ import Mathlib.CategoryTheory.Abelian.LeftDerived import Mathlib.CategoryTheory.Monoidal.Preadditive /-! # Tor, the left-derived functor of tensor product We define...
CategoryTheory\Monoidal\Transport.lean
/- Copyright (c) 2020 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison -/ import Mathlib.CategoryTheory.Monoidal.NaturalTransformation /-! # Transport a monoidal structure along an equivalence. When `C` and `D` are equivalent as categorie...
CategoryTheory\Monoidal\Braided\Basic.lean
/- Copyright (c) 2020 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison -/ import Mathlib.CategoryTheory.Monoidal.Discrete import Mathlib.CategoryTheory.Monoidal.NaturalTransformation import Mathlib.CategoryTheory.Monoidal.Opposite import Ma...
CategoryTheory\Monoidal\Braided\Opposite.lean
/- Copyright (c) 2024 Lean FRO LLC. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison -/ import Mathlib.CategoryTheory.Monoidal.Braided.Basic import Mathlib.CategoryTheory.Monoidal.Opposite /-! # If `C` is braided, so is `Cᵒᵖ`. Todo: we should also do `Cᵐ...
CategoryTheory\Monoidal\Cartesian\Comon_.lean
/- Copyright (c) 2023 Lean FRO LLC. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kim Morrison -/ import Mathlib.CategoryTheory.Monoidal.Comon_ import Mathlib.CategoryTheory.Monoidal.OfHasFiniteProducts /-! # Comonoid objects in a cartesian monoidal category. The ca...
CategoryTheory\Monoidal\Free\Basic.lean
/- Copyright (c) 2021 Markus Himmel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Markus Himmel -/ import Mathlib.CategoryTheory.Monoidal.Functor /-! # The free monoidal category over a type Given a type `C`, the free monoidal category over `C` has as objects forma...
CategoryTheory\Monoidal\Free\Coherence.lean
/- Copyright (c) 2021 Markus Himmel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Markus Himmel -/ import Mathlib.CategoryTheory.Monoidal.Free.Basic import Mathlib.CategoryTheory.DiscreteCategory /-! # The monoidal coherence theorem In this file, we prove the monoi...
CategoryTheory\Monoidal\Internal\FunctorCategory.lean
/- Copyright (c) 2020 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison -/ import Mathlib.CategoryTheory.Monoidal.CommMon_ import Mathlib.CategoryTheory.Monoidal.Comon_ import Mathlib.CategoryTheory.Monoidal.FunctorCategory /-! # `Mon_ (C ⥤...
CategoryTheory\Monoidal\Internal\Limits.lean
/- Copyright (c) 2020 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison -/ import Mathlib.CategoryTheory.Monoidal.Internal.FunctorCategory import Mathlib.CategoryTheory.Monoidal.Limits import Mathlib.CategoryTheory.Limits.Preserves.Basic /-...
CategoryTheory\Monoidal\Internal\Module.lean
/- Copyright (c) 2020 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison -/ import Mathlib.Algebra.Category.ModuleCat.Monoidal.Basic import Mathlib.Algebra.Category.AlgebraCat.Basic import Mathlib.CategoryTheory.Monoidal.Mon_ /-! # `Mon_ (Mo...
CategoryTheory\Monoidal\Internal\Types.lean
/- Copyright (c) 2020 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison -/ import Mathlib.Algebra.Category.MonCat.Basic import Mathlib.CategoryTheory.Monoidal.CommMon_ import Mathlib.CategoryTheory.Monoidal.Types.Symmetric /-! # `Mon_ (Type...
CategoryTheory\Monoidal\OfChosenFiniteProducts\Basic.lean
/- Copyright (c) 2019 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison, Simon Hudon -/ import Mathlib.CategoryTheory.Monoidal.Category import Mathlib.CategoryTheory.Limits.Shapes.BinaryProducts import Mathlib.CategoryTheory.PEmpty /-! # Th...
CategoryTheory\Monoidal\OfChosenFiniteProducts\Symmetric.lean
/- Copyright (c) 2019 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison, Simon Hudon -/ import Mathlib.CategoryTheory.Monoidal.Braided.Basic import Mathlib.CategoryTheory.Monoidal.OfChosenFiniteProducts.Basic /-! # The symmetric monoidal st...
CategoryTheory\Monoidal\Rigid\Basic.lean
/- Copyright (c) 2021 Jakob von Raumer. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jakob von Raumer -/ import Mathlib.Tactic.CategoryTheory.Coherence import Mathlib.CategoryTheory.Closed.Monoidal import Mathlib.Tactic.ApplyFun /-! # Rigid (autonomous) monoidal cat...
CategoryTheory\Monoidal\Rigid\FunctorCategory.lean
/- Copyright (c) 2022 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison -/ import Mathlib.CategoryTheory.Monoidal.Rigid.Basic import Mathlib.CategoryTheory.Monoidal.FunctorCategory /-! # Functors from a groupoid into a right/left rigid cate...
CategoryTheory\Monoidal\Rigid\OfEquivalence.lean
/- Copyright (c) 2022 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison -/ import Mathlib.CategoryTheory.Monoidal.Rigid.Basic /-! # Transport rigid structures over a monoidal equivalence. -/ noncomputable section namespace CategoryTheory...
CategoryTheory\Monoidal\Types\Basic.lean
/- Copyright (c) 2018 Michael Jendrusch. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Michael Jendrusch, Scott Morrison -/ import Mathlib.CategoryTheory.Monoidal.Functor import Mathlib.CategoryTheory.ChosenFiniteProducts import Mathlib.CategoryTheory.Limits.Shapes.Ty...
CategoryTheory\Monoidal\Types\Coyoneda.lean
/- Copyright (c) 2018 Michael Jendrusch. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Michael Jendrusch, Scott Morrison -/ import Mathlib.CategoryTheory.Monoidal.Types.Basic import Mathlib.CategoryTheory.Monoidal.CoherenceLemmas /-! # `(𝟙_ C ⟶ -)` is a lax monoidal...
CategoryTheory\Monoidal\Types\Symmetric.lean
/- Copyright (c) 2018 Michael Jendrusch. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Michael Jendrusch, Scott Morrison -/ import Mathlib.CategoryTheory.Monoidal.OfChosenFiniteProducts.Symmetric import Mathlib.CategoryTheory.Monoidal.Types.Basic /-! # The category o...
CategoryTheory\MorphismProperty\Basic.lean
/- Copyright (c) 2022 Andrew Yang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Andrew Yang -/ import Mathlib.CategoryTheory.Comma.Arrow import Mathlib.CategoryTheory.Pi.Basic import Mathlib.Order.CompleteBooleanAlgebra /-! # Properties of morphisms We provide the ...
CategoryTheory\MorphismProperty\Composition.lean
/- Copyright (c) 2022 Andrew Yang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Andrew Yang, Joël Riou -/ import Mathlib.CategoryTheory.MorphismProperty.Basic /-! # Compatibilities of properties of morphisms with respect to composition Given `P : MorphismProperty C...
CategoryTheory\MorphismProperty\Concrete.lean
/- Copyright (c) 2022 Andrew Yang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Andrew Yang -/ import Mathlib.CategoryTheory.ConcreteCategory.Basic import Mathlib.CategoryTheory.MorphismProperty.Composition import Mathlib.CategoryTheory.MorphismProperty.Factorization...
CategoryTheory\MorphismProperty\Factorization.lean
/- Copyright (c) 2024 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.MorphismProperty.Basic /-! # The factorization axiom In this file, we introduce a type-class `HasFactorization W₁ W₂`, which, given two classes ...
CategoryTheory\MorphismProperty\IsInvertedBy.lean
/- Copyright (c) 2022 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Functor.ReflectsIso import Mathlib.CategoryTheory.MorphismProperty.Basic /-! # Morphism properties that are inverted by a functor In this file, ...
CategoryTheory\MorphismProperty\Limits.lean
/- Copyright (c) 2022 Andrew Yang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Andrew Yang, Joël Riou -/ import Mathlib.CategoryTheory.Limits.Shapes.Pullback.CommSq import Mathlib.CategoryTheory.Limits.Shapes.Diagonal import Mathlib.CategoryTheory.MorphismProperty.C...
CategoryTheory\Pi\Basic.lean
/- Copyright (c) 2020 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Simon Hudon, Scott Morrison -/ import Mathlib.CategoryTheory.EqToHom import Mathlib.CategoryTheory.NatIso import Mathlib.CategoryTheory.Products.Basic import Batteries.Data.Sum.Basic ...
CategoryTheory\Preadditive\AdditiveFunctor.lean
/- Copyright (c) 2021 Adam Topaz. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Adam Topaz, Scott Morrison -/ import Mathlib.CategoryTheory.Limits.ExactFunctor import Mathlib.CategoryTheory.Limits.Preserves.Finite import Mathlib.CategoryTheory.Preadditive.Biproducts i...
CategoryTheory\Preadditive\Basic.lean
/- Copyright (c) 2020 Markus Himmel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Markus Himmel, Jakob von Raumer -/ import Mathlib.Algebra.BigOperators.Group.Finset import Mathlib.Algebra.Group.Hom.Defs import Mathlib.Algebra.Module.Defs import Mathlib.CategoryTheor...
CategoryTheory\Preadditive\Biproducts.lean
/- Copyright (c) 2020 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison -/ import Mathlib.Algebra.Group.Ext import Mathlib.CategoryTheory.Limits.Shapes.Biproducts import Mathlib.CategoryTheory.Limits.Preserves.Shapes.BinaryProducts import Ma...
CategoryTheory\Preadditive\EilenbergMoore.lean
/- Copyright (c) 2022 Julian Kuelshammer. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Julian Kuelshammer -/ import Mathlib.CategoryTheory.Preadditive.Basic import Mathlib.CategoryTheory.Monad.Algebra import Mathlib.CategoryTheory.Preadditive.AdditiveFunctor /-! # P...
CategoryTheory\Preadditive\EndoFunctor.lean
/- Copyright (c) 2022 Julian Kuelshammer. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Julian Kuelshammer -/ import Mathlib.CategoryTheory.Preadditive.Basic import Mathlib.CategoryTheory.Endofunctor.Algebra import Mathlib.CategoryTheory.Preadditive.AdditiveFunctor /...
CategoryTheory\Preadditive\FunctorCategory.lean
/- Copyright (c) 2021 Johan Commelin. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johan Commelin -/ import Mathlib.CategoryTheory.Preadditive.Basic /-! # Preadditive structure on functor categories If `C` and `D` are categories and `D` is preadditive, then `C ⥤ D`...
CategoryTheory\Preadditive\Generator.lean
/- Copyright (c) 2022 Markus Himmel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Markus Himmel -/ import Mathlib.CategoryTheory.Generator import Mathlib.CategoryTheory.Preadditive.Yoneda.Basic /-! # Separators in preadditive categories This file contains character...
CategoryTheory\Preadditive\HomOrthogonal.lean
/- Copyright (c) 2022 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison -/ import Mathlib.CategoryTheory.Linear.Basic import Mathlib.CategoryTheory.Preadditive.Biproducts import Mathlib.LinearAlgebra.Matrix.InvariantBasisNumber import Mathli...
CategoryTheory\Preadditive\Injective.lean
/- Copyright (c) 2022 Jujian Zhang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jujian Zhang, Kevin Buzzard -/ import Mathlib.CategoryTheory.Preadditive.Projective /-! # Injective objects and categories with enough injectives An object `J` is injective iff every m...
CategoryTheory\Preadditive\InjectiveResolution.lean
/- Copyright (c) 2022 Jujian Zhang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jujian Zhang, Scott Morrison, Joël Riou -/ import Mathlib.Algebra.Homology.QuasiIso import Mathlib.Algebra.Homology.ShortComplex.HomologicalComplex import Mathlib.Algebra.Homology.Single...
CategoryTheory\Preadditive\LeftExact.lean
/- Copyright (c) 2022 Jakob von Raumer. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Markus Himmel, Jakob von Raumer -/ import Mathlib.CategoryTheory.Limits.Constructions.FiniteProductsOfBinaryProducts import Mathlib.CategoryTheory.Limits.Preserves.Shapes.Kernels imp...
CategoryTheory\Preadditive\Mat.lean
/- Copyright (c) 2021 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison -/ import Mathlib.Algebra.BigOperators.Group.Finset import Mathlib.Algebra.BigOperators.Pi import Mathlib.CategoryTheory.Limits.Shapes.Biproducts import Mathlib.Category...
CategoryTheory\Preadditive\OfBiproducts.lean
/- Copyright (c) 2022 Markus Himmel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Markus Himmel -/ import Mathlib.CategoryTheory.Limits.Shapes.Biproducts import Mathlib.GroupTheory.EckmannHilton import Mathlib.Tactic.CategoryTheory.Reassoc /-! # Constructing a semiad...
CategoryTheory\Preadditive\Opposite.lean
/- Copyright (c) 2021 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison, Adam Topaz, Johan Commelin, Joël Riou -/ import Mathlib.CategoryTheory.Preadditive.AdditiveFunctor import Mathlib.Logic.Equiv.TransferInstance /-! # If `C` is preaddit...
CategoryTheory\Preadditive\Projective.lean
/- Copyright (c) 2020 Markus Himmel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Markus Himmel, Scott Morrison -/ import Mathlib.CategoryTheory.Adjunction.FullyFaithful import Mathlib.CategoryTheory.Adjunction.Limits import Mathlib.CategoryTheory.Limits.Construction...
CategoryTheory\Preadditive\ProjectiveResolution.lean
/- Copyright (c) 2021 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison, Joël Riou -/ import Mathlib.Algebra.Homology.QuasiIso import Mathlib.Algebra.Homology.SingleHomology /-! # Projective resolutions A projective resolution `P : Project...
CategoryTheory\Preadditive\Schur.lean
/- Copyright (c) 2020 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Markus Himmel, Scott Morrison -/ import Mathlib.Algebra.Group.Ext import Mathlib.CategoryTheory.Simple import Mathlib.CategoryTheory.Linear.Basic import Mathlib.CategoryTheory.Endomorp...
CategoryTheory\Preadditive\SingleObj.lean
/- Copyright (c) 2021 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison -/ import Mathlib.CategoryTheory.Preadditive.Basic import Mathlib.CategoryTheory.SingleObj /-! # `SingleObj α` is preadditive when `α` is a ring. -/ namespace Catego...
CategoryTheory\Preadditive\Yoneda\Basic.lean
/- Copyright (c) 2022 Markus Himmel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Markus Himmel -/ import Mathlib.CategoryTheory.Preadditive.Opposite import Mathlib.Algebra.Category.ModuleCat.Basic import Mathlib.Algebra.Category.Grp.Preadditive /-! # The Yoneda emb...
CategoryTheory\Preadditive\Yoneda\Injective.lean
/- Copyright (c) 2020 Markus Himmel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Markus Himmel, Scott Morrison -/ import Mathlib.CategoryTheory.Preadditive.Yoneda.Basic import Mathlib.CategoryTheory.Preadditive.Injective import Mathlib.Algebra.Category.Grp.EpiMono i...
CategoryTheory\Preadditive\Yoneda\Limits.lean
/- Copyright (c) 2022 Markus Himmel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Markus Himmel -/ import Mathlib.CategoryTheory.Preadditive.Yoneda.Basic import Mathlib.Algebra.Category.ModuleCat.Abelian import Mathlib.CategoryTheory.Limits.Yoneda /-! # The Yoneda e...
CategoryTheory\Preadditive\Yoneda\Projective.lean
/- Copyright (c) 2020 Markus Himmel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Markus Himmel, Scott Morrison -/ import Mathlib.CategoryTheory.Preadditive.Yoneda.Basic import Mathlib.CategoryTheory.Preadditive.Projective import Mathlib.Algebra.Category.Grp.EpiMono ...
CategoryTheory\Products\Associator.lean
/- Copyright (c) 2017 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Stephen Morgan, Scott Morrison -/ import Mathlib.CategoryTheory.Products.Basic /-! The associator functor `((C × D) × E) ⥤ (C × (D × E))` and its inverse form an equivalence. -/ uni...
CategoryTheory\Products\Basic.lean
/- Copyright (c) 2017 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Stephen Morgan, Scott Morrison -/ import Mathlib.CategoryTheory.EqToHom import Mathlib.CategoryTheory.Functor.Const import Mathlib.CategoryTheory.Opposites import Mathlib.Data.Prod.Bas...
CategoryTheory\Products\Bifunctor.lean
/- Copyright (c) 2017 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Stephen Morgan, Scott Morrison -/ import Mathlib.CategoryTheory.Products.Basic /-! # Lemmas about functors out of product categories. -/ open CategoryTheory namespace CategoryTheor...
CategoryTheory\Products\Unitor.lean
/- Copyright (c) 2024 Shanghe Chen. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Shanghe Chen -/ import Mathlib.CategoryTheory.Products.Basic import Mathlib.CategoryTheory.DiscreteCategory /-! # The left/right unitor equivalences `1 × C ≌ C` and `C × 1 ≌ C`. -/ uni...
CategoryTheory\Quotient\Linear.lean
/- Copyright (c) 2024 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Quotient import Mathlib.CategoryTheory.Linear.LinearFunctor /-! # The quotient category is linear If `r : HomRel C` is a congruence on a preaddi...
CategoryTheory\Quotient\Preadditive.lean
/- Copyright (c) 2023 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Quotient import Mathlib.CategoryTheory.Preadditive.AdditiveFunctor /-! # The quotient category is preadditive If an equivalence relation `r : Ho...
CategoryTheory\Shift\Basic.lean
/- Copyright (c) 2020 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison, Johan Commelin, Andrew Yang -/ import Mathlib.Algebra.Group.Basic import Mathlib.CategoryTheory.Limits.Preserves.Shapes.Zero import Mathlib.CategoryTheory.Monoidal.End ...
CategoryTheory\Shift\CommShift.lean
/- Copyright (c) 2023 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Shift.Basic /-! # Functors which commute with shifts Let `C` and `D` be two categories equipped with shifts by an additive monoid `A`. In this ...
CategoryTheory\Shift\Induced.lean
/- Copyright (c) 2023 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Shift.CommShift /-! # Shift induced from a category to another In this file, we introduce a sufficient condition on a functor `F : C ⥤ D` so tha...
CategoryTheory\Shift\InducedShiftSequence.lean
/- Copyright (c) 2024 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Shift.CommShift import Mathlib.CategoryTheory.Shift.ShiftSequence /-! # Induced shift sequences When `G : C ⥤ A` is a functor from a category eq...
CategoryTheory\Shift\Localization.lean
/- Copyright (c) 2023 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Shift.Induced import Mathlib.CategoryTheory.Localization.HasLocalization import Mathlib.CategoryTheory.Localization.LocalizerMorphism /-! # The s...
CategoryTheory\Shift\Opposite.lean
/- Copyright (c) 2023 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Shift.Basic import Mathlib.CategoryTheory.Preadditive.Opposite /-! # The (naive) shift on the opposite category If `C` is a category equipped wi...
CategoryTheory\Shift\Predicate.lean
/- Copyright (c) 2024 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.ClosedUnderIsomorphisms import Mathlib.CategoryTheory.Shift.Basic /-! # Predicates on categories equipped with shift Given a predicate `P : C → ...
CategoryTheory\Shift\Pullback.lean
/- Copyright (c) 2023 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Shift.Basic import Mathlib.CategoryTheory.Preadditive.AdditiveFunctor /-! # The pullback of a shift by a monoid morphism Given a shift by a mono...
CategoryTheory\Shift\Quotient.lean
/- Copyright (c) 2023 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Shift.CommShift import Mathlib.CategoryTheory.Shift.Induced import Mathlib.CategoryTheory.Quotient /-! # The shift on a quotient category Let `C...
CategoryTheory\Shift\ShiftedHom.lean
/- Copyright (c) 2024 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Shift.CommShift import Mathlib.CategoryTheory.Preadditive.AdditiveFunctor /-! Shifted morphisms Given a category `C` endowed with a shift by an ...
CategoryTheory\Shift\ShiftSequence.lean
/- Copyright (c) 2023 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Shift.Basic import Mathlib.CategoryTheory.Preadditive.AdditiveFunctor /-! Sequences of functors from a category equipped with a shift Let `F : C...
CategoryTheory\Shift\SingleFunctors.lean
/- Copyright (c) 2024 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Shift.CommShift /-! # Functors from a category to a category with a shift Given a category `C`, and a category `D` equipped with a shift by a mo...
CategoryTheory\Sigma\Basic.lean
/- Copyright (c) 2020 Bhavik Mehta. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Bhavik Mehta -/ import Mathlib.CategoryTheory.Whiskering import Mathlib.CategoryTheory.Functor.FullyFaithful import Mathlib.CategoryTheory.NatIso /-! # Disjoint union of categories We ...
CategoryTheory\Sites\Abelian.lean
/- Copyright (c) 2022 Jujian Zhang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Adam Topaz, Jujian Zhang -/ import Mathlib.CategoryTheory.Abelian.FunctorCategory import Mathlib.CategoryTheory.Preadditive.AdditiveFunctor import Mathlib.CategoryTheory.Abelian.Transfer...
CategoryTheory\Sites\Adjunction.lean
/- Copyright (c) 2021 Adam Topaz. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Adam Topaz, Joël Riou -/ import Mathlib.CategoryTheory.Adjunction.Whiskering import Mathlib.CategoryTheory.Sites.PreservesSheafification /-! In this file, we show that an adjunction `G ⊣...
CategoryTheory\Sites\Canonical.lean
/- Copyright (c) 2020 Bhavik Mehta. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Bhavik Mehta -/ import Mathlib.CategoryTheory.Sites.Sheaf /-! # The canonical topology on a category We define the finest (largest) Grothendieck topology for which a given presheaf `P`...
CategoryTheory\Sites\Closed.lean
/- Copyright (c) 2020 Bhavik Mehta. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Bhavik Mehta -/ import Mathlib.CategoryTheory.Sites.SheafOfTypes import Mathlib.Order.Closure /-! # Closed sieves A natural closure operator on sieves is a closure operator on `Sieve X...
CategoryTheory\Sites\CompatiblePlus.lean
/- Copyright (c) 2021 Adam Topaz. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Adam Topaz -/ import Mathlib.CategoryTheory.Sites.Whiskering import Mathlib.CategoryTheory.Sites.Plus /-! In this file, we prove that the plus functor is compatible with functors which p...
CategoryTheory\Sites\CompatibleSheafification.lean
/- Copyright (c) 2021 Adam Topaz. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Adam Topaz -/ import Mathlib.CategoryTheory.Sites.CompatiblePlus import Mathlib.CategoryTheory.Sites.ConcreteSheafification /-! In this file, we prove that sheafification is compatible w...
CategoryTheory\Sites\ConcreteSheafification.lean
/- Copyright (c) 2021 Adam Topaz. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Adam Topaz -/ import Mathlib.CategoryTheory.Sites.Plus import Mathlib.CategoryTheory.Limits.Shapes.ConcreteCategory /-! # Sheafification We construct the sheafification of a presheaf ov...
CategoryTheory\Sites\ConstantSheaf.lean
/- Copyright (c) 2023 Dagur Asgeirsson. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Dagur Asgeirsson -/ import Mathlib.CategoryTheory.Sites.Sheafification /-! # The constant sheaf We define the constant sheaf functor (the sheafification of the constant presheaf) ...
CategoryTheory\Sites\Continuous.lean
/- Copyright (c) 2024 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou, Andrew Yang -/ import Mathlib.CategoryTheory.Sites.IsSheafOneHypercover /-! # Continuous functors between sites. We define the notion of continuous functor between sites: these...
CategoryTheory\Sites\Coverage.lean
/- Copyright (c) 2023 Adam Topaz. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Adam Topaz -/ import Mathlib.CategoryTheory.Sites.Sheaf /-! # Coverages A coverage `K` on a category `C` is a set of presieves associated to every object `X : C`, called "covering pres...
CategoryTheory\Sites\CoverLifting.lean
/- Copyright (c) 2021 Andrew Yang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Andrew Yang, Joël Riou -/ import Mathlib.CategoryTheory.Adjunction.Restrict import Mathlib.CategoryTheory.Functor.KanExtension.Adjunction import Mathlib.CategoryTheory.Sites.Continuous im...
CategoryTheory\Sites\CoverPreserving.lean
/- Copyright (c) 2021 Andrew Yang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Andrew Yang -/ import Mathlib.CategoryTheory.Functor.Flat import Mathlib.CategoryTheory.Sites.Continuous import Mathlib.Tactic.ApplyFun /-! # Cover-preserving functors between sites. In ...
CategoryTheory\Sites\CoversTop.lean
/- Copyright (c) 2023 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Sites.Sheaf /-! Objects which cover the terminal object In this file, given a site `(C, J)`, we introduce the notion of a family of objects `Y :...
CategoryTheory\Sites\DenseSubsite.lean
/- Copyright (c) 2021 Andrew Yang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Andrew Yang -/ import Mathlib.CategoryTheory.Sites.Sheaf import Mathlib.CategoryTheory.Sites.CoverLifting import Mathlib.CategoryTheory.Sites.CoverPreserving import Mathlib.CategoryTheory...
CategoryTheory\Sites\Discrete.lean
/- Copyright (c) 2024 Dagur Asgeirsson. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Dagur Asgeirsson -/ import Mathlib.CategoryTheory.Adjunction.FullyFaithful import Mathlib.CategoryTheory.Sites.ConstantSheaf import Mathlib.CategoryTheory.Sites.DenseSubsite import M...
CategoryTheory\Sites\EffectiveEpimorphic.lean
/- Copyright (c) 2023 Adam Topaz. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Adam Topaz -/ import Mathlib.CategoryTheory.Sites.Sieves import Mathlib.CategoryTheory.EffectiveEpi.Basic /-! # Effective epimorphic sieves We define the notion of effective epimorphic (...
CategoryTheory\Sites\EpiMono.lean
/- Copyright (c) 2024 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.MorphismProperty.Concrete import Mathlib.CategoryTheory.Sites.LocallyBijective /-! # Morphisms of sheaves factor as a locally surjective followed...
CategoryTheory\Sites\EqualizerSheafCondition.lean
/- Copyright (c) 2020 Bhavik Mehta. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Bhavik Mehta -/ import Mathlib.CategoryTheory.Sites.IsSheafFor import Mathlib.CategoryTheory.Limits.Shapes.Types import Mathlib.Tactic.ApplyFun /-! # The equalizer diagram sheaf conditi...
CategoryTheory\Sites\Equivalence.lean
/- Copyright (c) 2023 Dagur Asgeirsson. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Dagur Asgeirsson -/ import Mathlib.CategoryTheory.Sites.InducedTopology import Mathlib.CategoryTheory.Sites.LocallyBijective import Mathlib.CategoryTheory.Sites.PreservesLocallyBijec...
CategoryTheory\Sites\Grothendieck.lean
/- Copyright (c) 2020 Bhavik Mehta, E. W. Ayers. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Bhavik Mehta, E. W. Ayers -/ import Mathlib.CategoryTheory.Sites.Sieves import Mathlib.CategoryTheory.Limits.Shapes.Multiequalizer import Mathlib.CategoryTheory.Category.Pre...
CategoryTheory\Sites\InducedTopology.lean
/- Copyright (c) 2021 Andrew Yang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Andrew Yang -/ import Mathlib.CategoryTheory.Sites.DenseSubsite /-! # Induced Topology We say that a functor `G : C ⥤ (D, K)` is locally dense if for each covering sieve `T` in `D` of s...
CategoryTheory\Sites\IsSheafFor.lean
/- Copyright (c) 2020 Bhavik Mehta. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Bhavik Mehta -/ import Mathlib.CategoryTheory.Sites.Sieves import Mathlib.CategoryTheory.Limits.Shapes.Pullback.Mono /-! # The sheaf condition for a presieve We define what it means fo...
CategoryTheory\Sites\IsSheafOneHypercover.lean
/- Copyright (c) 2024 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Sites.OneHypercover /-! # Characterization of sheaves using 1-hypercovers In this file, given a Grothendieck topology `J` on a category `C`, we ...
CategoryTheory\Sites\LeftExact.lean
/- Copyright (c) 2021 Adam Topaz. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Adam Topaz -/ import Mathlib.CategoryTheory.Sites.Limits import Mathlib.CategoryTheory.Limits.FilteredColimitCommutesFiniteLimit import Mathlib.CategoryTheory.Adhesive import Mathlib.Categ...
CategoryTheory\Sites\Limits.lean
/- Copyright (c) 2021 Adam Topaz. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Adam Topaz -/ import Mathlib.CategoryTheory.Limits.Creates import Mathlib.CategoryTheory.Sites.Sheafification import Mathlib.CategoryTheory.Limits.Shapes.FiniteProducts /-! # Limits and ...
CategoryTheory\Sites\Localization.lean
/- Copyright (c) 2024 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Localization.Bousfield import Mathlib.CategoryTheory.Sites.Sheafification /-! # The sheaf category as a localized category In this file, it is s...
CategoryTheory\Sites\LocallyBijective.lean
/- Copyright (c) 2024 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Sites.LocallySurjective import Mathlib.CategoryTheory.Sites.Localization /-! # Locally bijective morphisms of presheaves Let `C` a be category e...
CategoryTheory\Sites\LocallyFullyFaithful.lean
/- Copyright (c) 2024 Andrew Yang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Andrew Yang -/ import Mathlib.CategoryTheory.Sites.LocallySurjective /-! # Locally fully faithful functors into sites ## Main results - `CategoryTheory.Functor.IsLocallyFull`: A func...
CategoryTheory\Sites\LocallyInjective.lean
/- Copyright (c) 2024 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Sites.LeftExact import Mathlib.CategoryTheory.Sites.PreservesSheafification import Mathlib.CategoryTheory.Sites.Subsheaf import Mathlib.CategoryTh...
CategoryTheory\Sites\LocallySurjective.lean
/- Copyright (c) 2022 Andrew Yang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Andrew Yang, Joël Riou -/ import Mathlib.CategoryTheory.Sites.Subsheaf import Mathlib.CategoryTheory.Sites.CompatibleSheafification import Mathlib.CategoryTheory.Sites.LocallyInjective /-...
CategoryTheory\Sites\MayerVietorisSquare.lean
/- Copyright (c) 2024 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Limits.Shapes.Pullback.Square import Mathlib.CategoryTheory.Limits.Shapes.Types import Mathlib.CategoryTheory.Sites.Sheafification /-! # Mayer-Vi...
CategoryTheory\Sites\OneHypercover.lean
/- Copyright (c) 2024 Joël Riou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joël Riou -/ import Mathlib.CategoryTheory.Sites.Sheaf /-! # 1-hypercovers Given a Grothendieck topology `J` on a category `C`, we define the type of `1`-hypercovers of an object `S : C`....