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Topology\Category\LightProfinite\Sequence.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.Topology.Compactification.OnePoint import Mathlib.Topology.Category.LightProfinite.Basic /-! # The light profinite set classifying convergent sequ...
Topology\Category\Profinite\AsLimit.lean
/- Copyright (c) 2021 Adam Topaz. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Calle Sönne, Adam Topaz -/ import Mathlib.Topology.Category.Profinite.Basic import Mathlib.Topology.DiscreteQuotient /-! # Profinite sets as limits of finite sets. We show that any profi...
Topology\Category\Profinite\Basic.lean
/- Copyright (c) 2020 Kevin Buzzard. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kevin Buzzard, Calle Sönne -/ import Mathlib.CategoryTheory.FintypeCat import Mathlib.Topology.Category.CompHaus.Basic import Mathlib.Topology.LocallyConstant.Basic /-! # The category ...
Topology\Category\Profinite\CofilteredLimit.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.Topology.Category.Profinite.Basic import Mathlib.Topology.LocallyConstant.Basic import Mathlib.Topology.DiscreteQuotient import Mathlib.Topology.Category.TopCa...
Topology\Category\Profinite\EffectiveEpi.lean
/- Copyright (c) 2023 Jon Eugster. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Dagur Asgeirsson, Boris Bolvig Kjær, Jon Eugster, Sina Hazratpour -/ import Mathlib.CategoryTheory.Sites.Coherent.ReflectsPreregular import Mathlib.Topology.Category.CompHaus.EffectiveEpi...
Topology\Category\Profinite\Limits.lean
/- Copyright (c) 2023 Adam Topaz. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Adam Topaz, Dagur Asgeirsson -/ import Mathlib.Topology.Category.Profinite.Basic import Mathlib.Topology.Category.CompHausLike.Limits /-! # Explicit limits and colimits This file applies...
Topology\Category\Profinite\Nobeling.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.Algebra.Category.ModuleCat.Free import Mathlib.Topology.Category.Profinite.CofilteredLimit import Mathlib.Topology.Category.Profinite.Product impor...
Topology\Category\Profinite\Product.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.Topology.Category.Profinite.Basic /-! # Compact subsets of products as limits in `Profinite` This file exhibits a compact subset `C` of a product...
Topology\Category\Profinite\Projective.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.Topology.Category.Profinite.Basic import Mathlib.Topology.StoneCech import Mathlib.CategoryTheory.Preadditive.Projective import Mathlib.CategoryTheory....
Topology\Category\Stonean\Adjunctions.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.Topology.Category.Stonean.Basic import Mathlib.Topology.Category.TopCat.Adjunctions import Mathlib.Topology.StoneCech /-! # Adjunctions involving ...
Topology\Category\Stonean\Basic.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.Topology.ExtremallyDisconnected import Mathlib.Topology.Category.CompHaus.Projective import Mathlib.Topology.Category.Profinite.Basic /-! # Extremally disconne...
Topology\Category\Stonean\EffectiveEpi.lean
/- Copyright (c) 2023 Jon Eugster. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Dagur Asgeirsson, Boris Bolvig Kjær, Jon Eugster, Sina Hazratpour, Nima Rasekh -/ import Mathlib.CategoryTheory.Sites.Coherent.ReflectsPreregular import Mathlib.Topology.Category.CompHaus...
Topology\Category\Stonean\Limits.lean
/- Copyright (c) 2023 Adam Topaz. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Adam Topaz, Dagur Asgeirsson, Filippo A. E. Nuccio, Riccardo Brasca -/ import Mathlib.Topology.Category.CompHausLike.Limits import Mathlib.Topology.Category.Stonean.Basic /-! # Explicit l...
Topology\Category\TopCat\Adjunctions.lean
/- Copyright (c) 2017 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Patrick Massot, Mario Carneiro -/ import Mathlib.Topology.Category.TopCat.Basic import Mathlib.CategoryTheory.Adjunction.Basic /-! # Adjunctions regarding the category of topological ...
Topology\Category\TopCat\Basic.lean
/- Copyright (c) 2017 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Patrick Massot, Scott Morrison, Mario Carneiro -/ import Mathlib.CategoryTheory.ConcreteCategory.BundledHom import Mathlib.Topology.ContinuousFunction.Basic /-! # Category instance fo...
Topology\Category\TopCat\EffectiveEpi.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.EffectiveEpi.RegularEpi import Mathlib.CategoryTheory.EffectiveEpi.Comp import Mathlib.Topology.Category.TopCat.Limits.Pullbacks /-!...
Topology\Category\TopCat\EpiMono.lean
/- Copyright (c) 2019 Reid Barton. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Reid Barton -/ import Mathlib.Topology.Category.TopCat.Adjunctions import Mathlib.CategoryTheory.Functor.EpiMono /-! # Epi- and monomorphisms in `Top` This file shows that a continuous ...
Topology\Category\TopCat\OpenNhds.lean
/- Copyright (c) 2019 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison -/ import Mathlib.Topology.Category.TopCat.Opens import Mathlib.Data.Set.Subsingleton /-! # The category of open neighborhoods of a point Given an object `X` of the ca...
Topology\Category\TopCat\Opens.lean
/- Copyright (c) 2019 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison -/ import Mathlib.CategoryTheory.Category.Preorder import Mathlib.CategoryTheory.EqToHom import Mathlib.Topology.Category.TopCat.EpiMono import Mathlib.Topology.Sets.Ope...
Topology\Category\TopCat\Yoneda.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.Limits.Preserves.Finite import Mathlib.CategoryTheory.Limits.Opposites import Mathlib.CategoryTheory.Limits.Preserves.Shapes.Product...
Topology\Category\TopCat\Limits\Basic.lean
/- Copyright (c) 2017 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Patrick Massot, Scott Morrison, Mario Carneiro, Andrew Yang -/ import Mathlib.Topology.Category.TopCat.Basic import Mathlib.CategoryTheory.Limits.Types import Mathlib.CategoryTheory.Li...
Topology\Category\TopCat\Limits\Cofiltered.lean
/- Copyright (c) 2017 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Patrick Massot, Scott Morrison, Mario Carneiro, Andrew Yang -/ import Mathlib.Topology.Category.TopCat.Limits.Basic import Mathlib.CategoryTheory.Filtered.Basic /-! # Cofiltered limit...
Topology\Category\TopCat\Limits\Konig.lean
/- Copyright (c) 2021 Kyle Miller. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kyle Miller -/ import Mathlib.CategoryTheory.Filtered.Basic import Mathlib.Topology.Category.TopCat.Limits.Basic /-! # Topological Kőnig's lemma A topological version of Kőnig's lemma i...
Topology\Category\TopCat\Limits\Products.lean
/- Copyright (c) 2017 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Patrick Massot, Scott Morrison, Mario Carneiro, Andrew Yang -/ import Mathlib.Topology.Category.TopCat.EpiMono import Mathlib.Topology.Category.TopCat.Limits.Basic import Mathlib.Categ...
Topology\Category\TopCat\Limits\Pullbacks.lean
/- Copyright (c) 2017 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Patrick Massot, Scott Morrison, Mario Carneiro, Andrew Yang -/ import Mathlib.Topology.Category.TopCat.Limits.Products /-! # Pullbacks and pushouts in the category of topological spac...
Topology\Compactification\OnePoint.lean
/- Copyright (c) 2021 Yourong Zang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yourong Zang, Yury Kudryashov -/ import Mathlib.Data.Fintype.Option import Mathlib.Topology.Separation import Mathlib.Topology.Sets.Opens /-! # The OnePoint Compactification We constru...
Topology\Compactness\Compact.lean
/- Copyright (c) 2017 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl, Mario Carneiro, Yury Kudryashov -/ import Mathlib.Order.Filter.Basic import Mathlib.Topology.Bases import Mathlib.Data.Set.Accumulate import Mathlib.Topology.Bornology....
Topology\Compactness\CompactlyGeneratedSpace.lean
/- Copyright (c) 2024 Etienne Marion. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Dagur Asgeirsson, Etienne Marion -/ import Mathlib.Topology.Category.CompHaus.Basic import Mathlib.Topology.Compactification.OnePoint /-! # Compactly generated topological spaces Thi...
Topology\Compactness\Lindelof.lean
/- Copyright (c) 2023 Josha Dekker. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Josha Dekker -/ import Mathlib.Topology.Bases import Mathlib.Order.Filter.CountableInter import Mathlib.Topology.Compactness.SigmaCompact /-! # Lindelöf sets and Lindelöf spaces ## Mai...
Topology\Compactness\LocallyCompact.lean
/- Copyright (c) 2017 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl, Mario Carneiro, Yury Kudryashov -/ import Mathlib.Topology.Compactness.Compact /-! # Locally compact spaces We define the following classes of topological spaces: * `W...
Topology\Compactness\Paracompact.lean
/- Copyright (c) 2021 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Reid Barton, Yury Kudryashov -/ import Mathlib.Topology.Homeomorph import Mathlib.Data.Option.Basic /-! # Paracompact topological spaces A topological space `X` is said to be paraco...
Topology\Compactness\PseudometrizableLindelof.lean
/- Copyright (c) 2023 Josha Dekker. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Josha Dekker -/ import Mathlib.Topology.Metrizable.Basic import Mathlib.Topology.Compactness.Lindelof /-! # Second-countability of pseudometrizable Lindelöf spaces Factored out from `...
Topology\Compactness\SigmaCompact.lean
/- Copyright (c) 2017 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl, Mario Carneiro, Yury Kudryashov -/ import Mathlib.Topology.Compactness.LocallyCompact /-! # Sigma-compactness in topological spaces ## Main definitions * `IsSigmaCompa...
Topology\Connected\Basic.lean
/- Copyright (c) 2017 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl, Mario Carneiro, Yury Kudryashov -/ import Mathlib.Data.Set.Basic import Mathlib.Order.SuccPred.Relation import Mathlib.Topology.Irreducible /-! # Connected subsets of ...
Topology\Connected\Clopen.lean
/- Copyright (c) 2017 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl, Mario Carneiro, Yury Kudryashov -/ import Mathlib.Data.Set.Subset import Mathlib.Topology.Clopen import Mathlib.Topology.Connected.Basic /-! # Connected subsets and th...
Topology\Connected\LocallyConnected.lean
/- Copyright (c) 2022 Anatole Dedecker. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Anatole Dedecker -/ import Mathlib.Topology.Connected.Basic /-! # Locally connected topological spaces A topological space is **locally connected** if each neighborhood filter admi...
Topology\Connected\PathConnected.lean
/- Copyright (c) 2020 Patrick Massot. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Patrick Massot -/ import Mathlib.Topology.Order.ProjIcc import Mathlib.Topology.CompactOpen import Mathlib.Topology.UnitInterval /-! # Path connectedness ## Main definitions In the ...
Topology\Connected\Separation.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.Topology.Separation /-! # Separation and (dis)connectedness properties of topological spaces. This file provides an instance `T2Space X` given `T...
Topology\Connected\TotallyDisconnected.lean
/- Copyright (c) 2018 Kenny Lau. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kenny Lau, Patrick Massot, Yury Kudryashov -/ import Mathlib.Topology.Connected.Clopen /-! # Totally disconnected and totally separated topological spaces ## Main definitions We define th...
Topology\ContinuousFunction\Algebra.lean
/- Copyright (c) 2019 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison, Nicolò Cavalleri -/ import Mathlib.Algebra.Algebra.Pi import Mathlib.Algebra.Order.Group.Lattice import Mathlib.Algebra.Periodic import Mathlib.Algebra.Algebra.Subalgeb...
Topology\ContinuousFunction\Basic.lean
/- Copyright (c) 2020 Nicolò Cavalleri. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Nicolò Cavalleri -/ import Mathlib.Data.Set.UnionLift import Mathlib.Topology.Homeomorph /-! # Continuous bundled maps In this file we define the type `ContinuousMap` of continuous...
Topology\ContinuousFunction\Bounded.lean
/- Copyright (c) 2018 Sébastien Gouëzel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Sébastien Gouëzel, Mario Carneiro, Yury Kudryashov, Heather Macbeth -/ import Mathlib.Algebra.Module.MinimalAxioms import Mathlib.Topology.ContinuousFunction.Algebra import Mathlib....
Topology\ContinuousFunction\CocompactMap.lean
/- Copyright (c) 2022 Jireh Loreaux. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jireh Loreaux -/ import Mathlib.Topology.ContinuousFunction.Basic /-! # Cocompact continuous maps The type of *cocompact continuous maps* are those which tend to the cocompact filter ...
Topology\ContinuousFunction\Compact.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.Topology.ContinuousFunction.Bounded import Mathlib.Topology.UniformSpace.Compact import Mathlib.Topology.CompactOpen import Mathlib.Topology.Sets.Compa...
Topology\ContinuousFunction\CompactlySupported.lean
/- Copyright (c) 2024 Yoh Tanimoto. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yoh Tanimoto -/ import Mathlib.Topology.ContinuousFunction.CocompactMap import Mathlib.Topology.ContinuousFunction.ZeroAtInfty import Mathlib.Topology.Support /-! # Compactly supported ...
Topology\ContinuousFunction\ContinuousMapZero.lean
/- Copyright (c) 2024 Jireh Loreaux. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jireh Loreaux -/ import Mathlib.Topology.ContinuousFunction.Algebra /-! # Continuous maps sending zero to zero This is the type of continuous maps from `X` to `R` such that `(0 : X) ↦...
Topology\ContinuousFunction\Ideals.lean
/- Copyright (c) 2022 Jireh Loreaux. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jireh Loreaux -/ import Mathlib.Topology.Algebra.Algebra import Mathlib.Topology.ContinuousFunction.Compact import Mathlib.Topology.UrysohnsLemma import Mathlib.Analysis.RCLike.Basic im...
Topology\ContinuousFunction\LocallyConstant.lean
/- Copyright (c) 2021 Oliver Nash. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Oliver Nash -/ import Mathlib.Topology.LocallyConstant.Algebra import Mathlib.Topology.ContinuousFunction.Basic import Mathlib.Topology.ContinuousFunction.Algebra /-! # The algebra morph...
Topology\ContinuousFunction\Ordered.lean
/- Copyright (c) 2021 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison, Shing Tak Lam -/ import Mathlib.Topology.ContinuousFunction.Basic import Mathlib.Topology.Order.Lattice import Mathlib.Topology.Order.ProjIcc /-! # Bundled continuous ...
Topology\ContinuousFunction\Polynomial.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.Topology.Algebra.Polynomial import Mathlib.Topology.ContinuousFunction.Algebra import Mathlib.Topology.UnitInterval import Mathlib.Algebra.Star.Subalge...
Topology\ContinuousFunction\Sigma.lean
/- Copyright (c) 2023 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ import Mathlib.Topology.CompactOpen /-! # Equivalence between `C(X, Σ i, Y i)` and `Σ i, C(X, Y i)` If `X` is a connected topological space, then for every contin...
Topology\ContinuousFunction\StarOrdered.lean
/- Copyright (c) 2024 Jireh Loreaux. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jireh Loreaux -/ import Mathlib.Analysis.Complex.Basic import Mathlib.Data.Real.StarOrdered import Mathlib.Topology.ContinuousFunction.Algebra import Mathlib.Topology.ContinuousFunction...
Topology\ContinuousFunction\StoneWeierstrass.lean
/- Copyright (c) 2021 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison, Heather Macbeth -/ import Mathlib.Algebra.Algebra.Subalgebra.Unitization import Mathlib.Analysis.RCLike.Basic import Mathlib.Topology.Algebra.StarSubalgebra import Math...
Topology\ContinuousFunction\T0Sierpinski.lean
/- Copyright (c) 2022 Ivan Sadofschi Costa. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Ivan Sadofschi Costa -/ import Mathlib.Topology.Order import Mathlib.Topology.Sets.Opens import Mathlib.Topology.ContinuousFunction.Basic /-! # Any T0 space embeds in a product ...
Topology\ContinuousFunction\Units.lean
/- Copyright (c) 2022 Jireh Loreaux. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jireh Loreaux -/ import Mathlib.Analysis.Normed.Ring.Units import Mathlib.Algebra.Algebra.Spectrum import Mathlib.Topology.ContinuousFunction.Algebra /-! # Units of continuous function...
Topology\ContinuousFunction\Weierstrass.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.Analysis.SpecialFunctions.Bernstein import Mathlib.Topology.Algebra.Algebra /-! # The Weierstrass approximation theorem for continuous functions on `[...
Topology\ContinuousFunction\ZeroAtInfty.lean
/- Copyright (c) 2022 Jireh Loreaux. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jireh Loreaux -/ import Mathlib.Topology.ContinuousFunction.Bounded import Mathlib.Topology.ContinuousFunction.CocompactMap /-! # Continuous functions vanishing at infinity The type o...
Topology\Defs\Basic.lean
/- Copyright (c) 2017 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl, Mario Carneiro, Jeremy Avigad -/ import Mathlib.Order.SetNotation import Mathlib.Tactic.Continuity import Mathlib.Tactic.FunProp /-! # Basic definitions about topologic...
Topology\Defs\Filter.lean
/- Copyright (c) 2017 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl, Mario Carneiro, Jeremy Avigad -/ import Mathlib.Topology.Defs.Basic import Mathlib.Order.Filter.Ultrafilter import Mathlib.Data.Set.Lattice /-! # Definitions about fil...
Topology\Defs\Induced.lean
/- Copyright (c) 2017 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl, Mario Carneiro, Jeremy Avigad -/ import Mathlib.Topology.Basic /-! # Induced and coinduced topologies In this file we define the induced and coinduced topologies, as w...
Topology\Defs\Sequences.lean
/- Copyright (c) 2018 Jan-David Salchow. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jan-David Salchow, Patrick Massot, Yury Kudryashov -/ import Mathlib.Topology.Defs.Filter /-! # Sequences in topological spaces In this file we define sequential closure, continui...
Topology\EMetricSpace\Basic.lean
/- Copyright (c) 2015, 2017 Jeremy Avigad. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jeremy Avigad, Robert Y. Lewis, Johannes Hölzl, Mario Carneiro, Sébastien Gouëzel -/ import Mathlib.Data.ENNReal.Real import Mathlib.Order.Interval.Finset.Nat import Mathlib.Topol...
Topology\EMetricSpace\Lipschitz.lean
/- Copyright (c) 2018 Rohan Mitta. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Rohan Mitta, Kevin Buzzard, Alistair Tucker, Johannes Hölzl, Yury Kudryashov -/ import Mathlib.Logic.Function.Iterate import Mathlib.Topology.EMetricSpace.Basic import Mathlib.Tactic.GCon...
Topology\EMetricSpace\Paracompact.lean
/- Copyright (c) 202 Yury G. Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury G. Kudryashov -/ import Mathlib.SetTheory.Ordinal.Basic import Mathlib.Tactic.GCongr import Mathlib.Topology.EMetricSpace.Basic import Mathlib.Topology.Compactness.Paracompact ...
Topology\FiberBundle\Basic.lean
/- Copyright (c) 2019 Sébastien Gouëzel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Sébastien Gouëzel, Floris van Doorn, Heather Macbeth -/ import Mathlib.Topology.FiberBundle.Trivialization import Mathlib.Topology.Order.LeftRightNhds /-! # Fiber bundles Mathemat...
Topology\FiberBundle\Constructions.lean
/- Copyright (c) 2022 Nicolò Cavalleri. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Nicolò Cavalleri, Sébastien Gouëzel, Heather Macbeth, Floris van Doorn -/ import Mathlib.Topology.FiberBundle.Basic /-! # Standard constructions on fiber bundles This file contains...
Topology\FiberBundle\IsHomeomorphicTrivialBundle.lean
/- Copyright (c) 2019 Sébastien Gouëzel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Sébastien Gouëzel -/ import Mathlib.Topology.Homeomorph /-! # Maps equivariantly-homeomorphic to projection in a product This file contains the definition `IsHomeomorphicTrivialFi...
Topology\FiberBundle\Trivialization.lean
/- Copyright (c) 2019 Sébastien Gouëzel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Sébastien Gouëzel -/ import Mathlib.Data.Bundle import Mathlib.Data.Set.Image import Mathlib.Topology.PartialHomeomorph import Mathlib.Topology.Order.Basic /-! # Trivializations #...
Topology\Hom\Open.lean
/- Copyright (c) 2022 Yaël Dillies. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yaël Dillies -/ import Mathlib.Topology.ContinuousFunction.Basic /-! # Continuous open maps This file defines bundled continuous open maps. We use the `DFunLike` design, so each type ...
Topology\Homotopy\Basic.lean
/- Copyright (c) 2021 Shing Tak Lam. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Shing Tak Lam -/ import Mathlib.Topology.Order.ProjIcc import Mathlib.Topology.ContinuousFunction.Ordered import Mathlib.Topology.CompactOpen import Mathlib.Topology.UnitInterval /-! #...
Topology\Homotopy\Contractible.lean
/- Copyright (c) 2022 Praneeth Kolichala. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Praneeth Kolichala -/ import Mathlib.Topology.Homotopy.Path import Mathlib.Topology.Homotopy.Equiv /-! # Contractible spaces In this file, we define `ContractibleSpace`, a space ...
Topology\Homotopy\Equiv.lean
/- Copyright (c) 2021 Shing Tak Lam. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Shing Tak Lam -/ import Mathlib.Topology.Homotopy.Basic /-! # Homotopy equivalences between topological spaces In this file, we define homotopy equivalences between topological space...
Topology\Homotopy\HomotopyGroup.lean
/- Copyright (c) 2021 Roberto Alvarez. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Roberto Alvarez -/ import Mathlib.AlgebraicTopology.FundamentalGroupoid.FundamentalGroup import Mathlib.GroupTheory.EckmannHilton import Mathlib.Logic.Equiv.TransferInstance import Ma...
Topology\Homotopy\HSpaces.lean
/- Copyright (c) 2022 Filippo A. E. Nuccio Mortarino Majno di Capriglio. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Filippo A. E. Nuccio, Junyan Xu -/ import Mathlib.Topology.CompactOpen import Mathlib.Topology.Connected.PathConnected import Mathlib.Topology.Homoto...
Topology\Homotopy\Path.lean
/- Copyright (c) 2021 Shing Tak Lam. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Shing Tak Lam -/ import Mathlib.Topology.Homotopy.Basic import Mathlib.Topology.Connected.PathConnected import Mathlib.Analysis.Convex.Basic /-! # Homotopy between paths In this file,...
Topology\Homotopy\Product.lean
/- Copyright (c) 2021 Praneeth Kolichala. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Praneeth Kolichala -/ import Mathlib.Topology.Constructions import Mathlib.Topology.Homotopy.Path /-! # Product of homotopies In this file, we introduce definitions for the produ...
Topology\Instances\AddCircle.lean
/- Copyright (c) 2022 Oliver Nash. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Oliver Nash -/ import Mathlib.Algebra.Order.ToIntervalMod import Mathlib.Algebra.Ring.AddAut import Mathlib.Data.Nat.Totient import Mathlib.GroupTheory.Divisible import Mathlib.Topology.C...
Topology\Instances\CantorSet.lean
/- Copyright (c) 2024 Jana Göken. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Artur Szafarczyk, Suraj Krishna M S, Jean-Baptiste Stiegler, Isabelle Dubois, Tomáš Jakl, Lorenzo Zanichelli, Alina Yan, Emilie Uthaiwat, Jana Göken, Filippo A. E. Nuccio -/ import Mathlib...
Topology\Instances\Complex.lean
/- Copyright (c) 2022 Xavier Roblot. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Xavier Roblot -/ import Mathlib.Analysis.Complex.Basic import Mathlib.Data.Complex.FiniteDimensional import Mathlib.FieldTheory.IntermediateField import Mathlib.LinearAlgebra.FiniteDime...
Topology\Instances\Discrete.lean
/- Copyright (c) 2022 Rémy Degenne. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Rémy Degenne -/ import Mathlib.Order.SuccPred.Basic import Mathlib.Topology.Order.Basic import Mathlib.Topology.Metrizable.Uniformity /-! # Instances related to the discrete topology W...
Topology\Instances\ENNReal.lean
/- Copyright (c) 2017 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl -/ import Mathlib.Topology.Order.MonotoneContinuity import Mathlib.Topology.Algebra.Order.LiminfLimsup import Mathlib.Topology.Instances.NNReal import Mathlib.Topology.E...
Topology\Instances\EReal.lean
/- Copyright (c) 2021 Sébastien Gouëzel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Sébastien Gouëzel -/ import Mathlib.Data.Rat.Encodable import Mathlib.Data.Real.EReal import Mathlib.Topology.Instances.ENNReal import Mathlib.Topology.Order.MonotoneContinuity /-!...
Topology\Instances\Int.lean
/- Copyright (c) 2017 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl, Mario Carneiro -/ import Mathlib.Data.Int.Interval import Mathlib.Data.Int.SuccPred import Mathlib.Data.Int.ConditionallyCompleteOrder import Mathlib.Topology.Instances...
Topology\Instances\Irrational.lean
/- Copyright (c) 2021 Yury G. Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury G. Kudryashov -/ import Mathlib.Data.Real.Irrational import Mathlib.Data.Rat.Encodable import Mathlib.Topology.GDelta /-! # Topology of irrational numbers In this file we pr...
Topology\Instances\Matrix.lean
/- Copyright (c) 2021 Oliver Nash. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Oliver Nash, Eric Wieser -/ import Mathlib.Topology.Algebra.InfiniteSum.Basic import Mathlib.Topology.Algebra.Ring.Basic import Mathlib.Topology.Algebra.Star import Mathlib.LinearAlgebra....
Topology\Instances\Nat.lean
/- Copyright (c) 2017 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl, Mario Carneiro -/ import Mathlib.Topology.Instances.Int /-! # Topology on the natural numbers The structure of a metric space on `ℕ` is introduced in this file, induc...
Topology\Instances\NNReal.lean
/- Copyright (c) 2018 Johan Commelin. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johan Commelin -/ import Mathlib.Data.NNReal.Star import Mathlib.Topology.Algebra.InfiniteSum.Order import Mathlib.Topology.Algebra.InfiniteSum.Ring import Mathlib.Topology.Instances.R...
Topology\Instances\PNat.lean
/- Copyright (c) 2024 Miyahara Kō. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Miyahara Kō -/ import Mathlib.Topology.Instances.Nat /-! # Topology on the positive natural numbers The structure of a metric space on `ℕ+` is introduced in this file, induced from `ℝ`....
Topology\Instances\Rat.lean
/- Copyright (c) 2017 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl, Mario Carneiro -/ import Mathlib.Topology.Algebra.Order.Archimedean import Mathlib.Topology.Instances.Nat import Mathlib.Topology.Instances.Real /-! # Topology on the ...
Topology\Instances\RatLemmas.lean
/- Copyright (c) 2022 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ import Mathlib.Topology.Instances.Irrational import Mathlib.Topology.Instances.Rat import Mathlib.Topology.Compactification.OnePoint /-! # Additional lemmas about ...
Topology\Instances\Real.lean
/- Copyright (c) 2017 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl, Mario Carneiro -/ import Mathlib.Data.Real.Star import Mathlib.Algebra.Algebra.Basic import Mathlib.Algebra.Periodic import Mathlib.Topology.Algebra.Order.Field import ...
Topology\Instances\RealVectorSpace.lean
/- Copyright (c) 2020 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ import Mathlib.Topology.Algebra.Module.Basic import Mathlib.Topology.Instances.Rat import Mathlib.Algebra.Module.Rat /-! # Continuous additive maps are `ℝ`-linear ...
Topology\Instances\Sign.lean
/- Copyright (c) 2022 Joseph Myers. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joseph Myers -/ import Mathlib.Data.Sign import Mathlib.Topology.Order.Basic /-! # Topology on `SignType` This file gives `SignType` the discrete topology, and proves continuity result...
Topology\Instances\TrivSqZeroExt.lean
/- Copyright (c) 2023 Eric Wieser. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Eric Wieser -/ import Mathlib.Algebra.TrivSqZeroExt import Mathlib.Topology.Algebra.InfiniteSum.Basic import Mathlib.Topology.Algebra.Module.Basic /-! # Topology on `TrivSqZeroExt R M` ...
Topology\Instances\ZMod.lean
/- Copyright (c) 2024 David Loeffler. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: David Loeffler -/ import Mathlib.Topology.Order import Mathlib.Data.ZMod.Defs /-! # Topology on `ZMod N` We equip `ZMod N` with the discrete topology. -/ namespace ZMod variable {N...
Topology\LocallyConstant\Algebra.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.Algebra.Algebra.Pi import Mathlib.LinearAlgebra.Pi import Mathlib.Topology.LocallyConstant.Basic /-! # Algebraic structure on locally constant functio...
Topology\LocallyConstant\Basic.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.Algebra.GroupWithZero.Indicator import Mathlib.Tactic.FinCases import Mathlib.Topology.Sets.Closeds /-! # Locally constant functions This file sets u...
Topology\Maps\Basic.lean
/- Copyright (c) 2017 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl, Mario Carneiro, Patrick Massot -/ import Mathlib.Topology.Order /-! # Specific classes of maps between topological spaces This file introduces the following propertie...
Topology\Maps\Proper\Basic.lean
/- Copyright (c) 2023 Anatole Dedecker. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Anatole Dedecker, Etienne Marion -/ import Mathlib.Topology.Homeomorph import Mathlib.Topology.Filter import Mathlib.Topology.Defs.Sequences /-! # Proper maps between topological sp...
Topology\Maps\Proper\UniversallyClosed.lean
/- Copyright (c) 2023 Anatole Dedecker. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Anatole Dedecker, Etienne Marion -/ import Mathlib.Topology.Maps.Proper.Basic import Mathlib.Topology.StoneCech /-! # A map is proper iff it is continuous and universally closed -/ ...