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Topology\MetricSpace\Algebra.lean
/- Copyright (c) 2021 Heather Macbeth. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Heather Macbeth -/ import Mathlib.Topology.Algebra.MulAction import Mathlib.Topology.MetricSpace.Lipschitz /-! # Compatibility of algebraic operations with metric space structures I...
Topology\MetricSpace\Antilipschitz.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.UniformSpace.CompleteSeparated import Mathlib.Topology.EMetricSpace.Lipschitz import Mathlib.Topology.MetricSpace.Basic import Mathlib.Topol...
Topology\MetricSpace\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.Topology.MetricSpace.Pseudo.Lemmas /-! # Metric spaces This file defines metr...
Topology\MetricSpace\Bounded.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.Topology.Algebra.Order.Compact import Mathlib.Topology.MetricSpace.ProperSpace ...
Topology\MetricSpace\CantorScheme.lean
/- Copyright (c) 2023 Felix Weilacher. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Felix Weilacher -/ import Mathlib.Topology.MetricSpace.PiNat /-! # (Topological) Schemes and their induced maps In topology, and especially descriptive set theory, one often constru...
Topology\MetricSpace\Cauchy.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.Topology.MetricSpace.Pseudo.Lemmas /-! ## Cauchy sequences in (pseudo-)metric ...
Topology\MetricSpace\CauSeqFilter.lean
/- Copyright (c) 2018 Robert Y. Lewis. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Robert Y. Lewis, Sébastien Gouëzel -/ import Mathlib.Analysis.Normed.Field.Basic /-! # Completeness in terms of `Cauchy` filters vs `isCauSeq` sequences In this file we apply `Metri...
Topology\MetricSpace\Closeds.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.Analysis.SpecificLimits.Basic import Mathlib.Topology.MetricSpace.HausdorffDistance import Mathlib.Topology.Sets.Compacts /-! # Closed subsets ...
Topology\MetricSpace\Completion.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.UniformSpace.Completion import Mathlib.Topology.MetricSpace.Isometry import Mathlib.Topology.MetricSpace.Lipschitz import Mathlib.Topolo...
Topology\MetricSpace\Contracting.lean
/- Copyright (c) 2019 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.Analysis.SpecificLimits.Basic import Mathlib.Data.Setoid.Basic import Mathlib.Dynamics.Fixed...
Topology\MetricSpace\Dilation.lean
/- Copyright (c) 2022 Hanting Zhang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Hanting Zhang -/ import Mathlib.Topology.MetricSpace.Antilipschitz import Mathlib.Topology.MetricSpace.Isometry import Mathlib.Topology.MetricSpace.Lipschitz import Mathlib.Data.FunLike...
Topology\MetricSpace\DilationEquiv.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.MetricSpace.Dilation /-! # Dilation equivalence In this file we define `DilationEquiv X Y`, a type of bundled equivalences between `X` and...
Topology\MetricSpace\Equicontinuity.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.MetricSpace.Pseudo.Lemmas import Mathlib.Topology.UniformSpace.Equicontinuity /-! # Equicontinuity in metric spaces This files contains ...
Topology\MetricSpace\Gluing.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.MetricSpace.Isometry /-! # Metric space gluing Gluing two metric spaces along a common subset. Formally, we are given ``` Φ Z ...
Topology\MetricSpace\GromovHausdorff.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.SetTheory.Cardinal.Basic import Mathlib.Topology.MetricSpace.Closeds import Mathlib.Topology.MetricSpace.Completion import Mathlib.Topology.Metri...
Topology\MetricSpace\GromovHausdorffRealized.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.MetricSpace.Gluing import Mathlib.Topology.MetricSpace.HausdorffDistance import Mathlib.Topology.ContinuousFunction.Bounded /-! # The G...
Topology\MetricSpace\HausdorffDimension.lean
/- Copyright (c) 2021 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ import Mathlib.Analysis.Calculus.ContDiff.RCLike import Mathlib.MeasureTheory.Measure.Hausdorff /-! # Hausdorff dimension The Hausdorff dimension of a set `X` in ...
Topology\MetricSpace\HausdorffDistance.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.Analysis.SpecificLimits.Basic import Mathlib.Topology.MetricSpace.IsometricSMul /-! # Hausdorff distance The Hausdorff distance on subsets of a...
Topology\MetricSpace\Holder.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.Topology.MetricSpace.Lipschitz import Mathlib.Analysis.SpecialFunctions.Pow.Continuity /-! # Hölder continuous functions In this file we defi...
Topology\MetricSpace\Infsep.lean
/- Copyright (c) 2022 Wrenna Robson. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Wrenna Robson -/ import Mathlib.Topology.MetricSpace.Basic /-! # Infimum separation This file defines the extended infimum separation of a set. This is approximately dual to the diame...
Topology\MetricSpace\IsometricSMul.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.Data.Set.Pointwise.SMul import Mathlib.Topology.MetricSpace.Isometry import Mathlib.Topology.MetricSpace.Lipschitz /-! # Group actions by isometries...
Topology\MetricSpace\Isometry.lean
/- Copyright (c) 2018 Sébastien Gouëzel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Sébastien Gouëzel -/ import Mathlib.Topology.MetricSpace.Antilipschitz /-! # Isometries We define isometries, i.e., maps between emetric spaces that preserve the edistance (on met...
Topology\MetricSpace\Kuratowski.lean
/- Copyright (c) 2018 Sébastien Gouëzel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Sébastien Gouëzel -/ import Mathlib.Analysis.Normed.Lp.lpSpace import Mathlib.Topology.Sets.Compacts /-! # The Kuratowski embedding Any separable metric space can be embedded isom...
Topology\MetricSpace\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.Order.Interval.Set.ProjIcc import Mathlib.Topology.Algebra.Order.Field import Mathlib.Topolo...
Topology\MetricSpace\MetricSeparated.lean
/- Copyright (c) 2021 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ import Mathlib.Topology.EMetricSpace.Basic /-! # Metric separated pairs of sets In this file we define the predicate `IsMetricSeparated`. We say that two sets in ...
Topology\MetricSpace\PartitionOfUnity.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.EMetricSpace.Paracompact import Mathlib.Topology.Instances.ENNReal import Mathlib.Analysis.Convex.PartitionOfUnity /-! # Lemmas about (e)me...
Topology\MetricSpace\Perfect.lean
/- Copyright (c) 2022 Felix Weilacher. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Felix Weilacher -/ import Mathlib.Topology.Perfect import Mathlib.Topology.MetricSpace.Polish import Mathlib.Topology.MetricSpace.CantorScheme /-! # Perfect Sets In this file we de...
Topology\MetricSpace\PiNat.lean
/- Copyright (c) 2022 Sébastien Gouëzel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Sébastien Gouëzel -/ import Mathlib.Topology.MetricSpace.HausdorffDistance /-! # Topological study of spaces `Π (n : ℕ), E n` When `E n` are topological spaces, the space `Π (n : ...
Topology\MetricSpace\Polish.lean
/- Copyright (c) 2022 Sébastien Gouëzel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Sébastien Gouëzel -/ import Mathlib.Topology.MetricSpace.PiNat import Mathlib.Topology.MetricSpace.Isometry import Mathlib.Topology.MetricSpace.Gluing import Mathlib.Topology.Sets.O...
Topology\MetricSpace\ProperSpace.lean
/- Copyright (c) 2018 Sébastien Gouëzel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Sébastien Gouëzel -/ import Mathlib.Topology.MetricSpace.Pseudo.Lemmas import Mathlib.Topology.Order.IsLUB import Mathlib.Topology.Support /-! ## Proper spaces ## Main definition...
Topology\MetricSpace\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.Sequences import Mathlib.Topology.MetricSpace.Bounded /-! # Sequencial compacts in metric spaces In t...
Topology\MetricSpace\ShrinkingLemma.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.Topology.EMetricSpace.Paracompact import Mathlib.Topology.MetricSpace.Basic import Mathlib.Topology.MetricSpace.ProperSpace.Lemmas import Mathl...
Topology\MetricSpace\ThickenedIndicator.lean
/- Copyright (c) 2022 Kalle Kytölä. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kalle Kytölä -/ import Mathlib.Data.ENNReal.Basic import Mathlib.Topology.ContinuousFunction.Bounded import Mathlib.Topology.MetricSpace.Thickening /-! # Thickened indicators This file...
Topology\MetricSpace\Thickening.lean
/- Copyright (c) 2021 Kalle Kytölä. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kalle Kytölä -/ import Mathlib.Topology.MetricSpace.HausdorffDistance /-! # Thickenings in pseudo-metric spaces ## Main definitions * `Metric.thickening δ s`, the open thickening by ra...
Topology\MetricSpace\ProperSpace\Lemmas.lean
/- Copyright (c) 2018 Sébastien Gouëzel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Sébastien Gouëzel -/ import Mathlib.Topology.Algebra.Order.Compact import Mathlib.Topology.MetricSpace.ProperSpace import Mathlib.Topology.Order.IntermediateValue import Mathlib.To...
Topology\MetricSpace\Pseudo\Constructions.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.Topology.Bornology.Constructions import Mathlib.Topology.MetricSpace.Pseudo.Def...
Topology\MetricSpace\Pseudo\Defs.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.Topology.EMetricSpace.Basic import Mathlib.Tactic.Bound.Attribute /-! ## Pseud...
Topology\MetricSpace\Pseudo\Lemmas.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.Set.Pointwise.Interval import Mathlib.Topology.MetricSpace.Pseudo.Construc...
Topology\MetricSpace\Ultra\Basic.lean
/- Copyright (c) 2024 Yakov Pechersky. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yakov Pechersky -/ import Mathlib.Topology.MetricSpace.Pseudo.Lemmas /-! ## Ultrametric spaces This file defines ultrametric spaces, implemented as a mixin on the `Dist`, so that it...
Topology\Metrizable\Basic.lean
/- Copyright (c) 2021 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ import Mathlib.Topology.MetricSpace.Basic /-! # Metrizability of a T₃ topological space with second countable topology In this file we define metrizable topologic...
Topology\Metrizable\ContinuousMap.lean
/- Copyright (c) 2024 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ import Mathlib.Topology.Metrizable.Uniformity import Mathlib.Topology.UniformSpace.CompactConvergence /-! # Metrizability of `C(X, Y)` If `X` is a weakly locally ...
Topology\Metrizable\Uniformity.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.Metrizable.Basic import Mathlib.Data.Nat.Lattice /-! # Metrizable uniform spaces In this file we prove that a uniform space with countably...
Topology\Metrizable\Urysohn.lean
/- Copyright (c) 2021 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ import Mathlib.Analysis.SpecificLimits.Basic import Mathlib.Topology.UrysohnsLemma import Mathlib.Topology.ContinuousFunction.Bounded import Mathlib.Topology.Metriz...
Topology\Order\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.Order.Filter.Interval import Mathlib.Order.Interval.Set.Pi import Mathlib.Tactic.TFAE import Mathlib.Tactic.NormNum im...
Topology\Order\Bornology.lean
/- Copyright (c) 2024 Yaël Dillies. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yaël Dillies -/ import Mathlib.Topology.Bornology.Constructions /-! # Bornology of order-bounded sets This file relates the notion of bornology-boundedness (sets that lie in a bornolog...
Topology\Order\Bounded.lean
/- Copyright (c) 2023 Kalle Kytölä. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kalle Kytölä -/ import Mathlib.Topology.Bornology.Basic import Mathlib.Topology.Instances.Real import Mathlib.Order.LiminfLimsup /-! # Relating order and metric boundedness In spaces e...
Topology\Order\DenselyOrdered.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.Order.IsLUB /-! # Order topology on a densely ordered set -/ open Set Filter TopologicalSpace Topology Func...
Topology\Order\ExtendFrom.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.ExtendFrom import Mathlib.Topology.Order.DenselyOrdered /-! # Lemmas about `extendFrom` in an order topology...
Topology\Order\ExtrClosure.lean
/- Copyright (c) 2022 Yury G. Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury G. Kudryashov -/ import Mathlib.Topology.Order.OrderClosed import Mathlib.Topology.Order.LocalExtr /-! # Maximum/minimum on the closure of a set In this file we prove severa...
Topology\Order\Filter.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.Filter import Mathlib.Topology.Order.Basic /-! # Topology on filters of a space with order topology In this file we prove that `𝓝 (f x)` ...
Topology\Order\IntermediateValue.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, Alistair Tucker, Wen Yang -/ import Mathlib.Order.Interval.Set.Image import Mathlib.Order.CompleteLatticeIntervals import Mathlib.Topology.Order.DenselyOrdered ...
Topology\Order\IsLUB.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.Order.LeftRightNhds /-! # Properties of LUB and GLB in an order topology -/ open Set Filter TopologicalSpa...
Topology\Order\Lattice.lean
/- Copyright (c) 2021 Christopher Hoskin. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Christopher Hoskin -/ import Mathlib.Topology.Constructions import Mathlib.Topology.Order.OrderClosed /-! # Topological lattices In this file we define mixin classes `ContinuousI...
Topology\Order\LawsonTopology.lean
/- Copyright (c) 2023 Christopher Hoskin. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Christopher Hoskin -/ import Mathlib.Topology.Order.LowerUpperTopology import Mathlib.Topology.Order.ScottTopology /-! # Lawson topology This file introduces the Lawson topology...
Topology\Order\LeftRight.lean
/- Copyright (c) 2021 Anatole Dedecker. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Anatole Dedecker -/ import Mathlib.Topology.ContinuousOn /-! # Left and right continuity In this file we prove a few lemmas about left and right continuous functions: * `continuou...
Topology\Order\LeftRightLim.lean
/- Copyright (c) 2022 Sébastien Gouëzel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Sébastien Gouëzel -/ import Mathlib.Topology.Order.LeftRight import Mathlib.Topology.Order.Monotone /-! # Left and right limits We define the (strict) left and right limits of a f...
Topology\Order\LeftRightNhds.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.Order.Basic import Mathlib.Data.Set.Pointwise.Basic /-! # Neighborhoods to the left and to the right on an ...
Topology\Order\LocalExtr.lean
/- Copyright (c) 2019 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ import Mathlib.Algebra.Group.Defs import Mathlib.Order.Filter.Extr import Mathlib.Topology.ContinuousOn /-! # Local extrema of functions on topological spaces ## ...
Topology\Order\LowerUpperTopology.lean
/- Copyright (c) 2023 Christopher Hoskin. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Christopher Hoskin -/ import Mathlib.Order.Hom.CompleteLattice import Mathlib.Topology.Homeomorph import Mathlib.Topology.Order.Lattice /-! # Lower and Upper topology This file i...
Topology\Order\Monotone.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.Order.IsLUB /-! # Monotone functions on an order topology This file contains lemmas about limits and contin...
Topology\Order\MonotoneContinuity.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, Heather Macbeth -/ import Mathlib.Topology.Homeomorph import Mathlib.Topology.Order.LeftRightNhds /-! # Continuity of monotone functions In this file we prove...
Topology\Order\MonotoneConvergence.lean
/- Copyright (c) 2021 Heather Macbeth. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Heather Macbeth, Yury Kudryashov -/ import Mathlib.Topology.Order.Basic /-! # Bounded monotone sequences converge In this file we prove a few theorems of the form “if the range of a...
Topology\Order\NhdsSet.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.Order.Basic /-! # Set neighborhoods of intervals In this file we prove basic theorems about `𝓝ˢ s`, where `s` is one of the intervals `Se...
Topology\Order\OrderClosed.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.Separation /-! # Order-closed topologies In this file we introduce 3 typeclass mixins that relate topology ...
Topology\Order\PartialSups.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.Order.Lattice import Mathlib.Order.PartialSups /-! # Continuity of `partialSups` In this file we prove that `partialSups` of a sequence of...
Topology\Order\Priestley.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.Order.UpperLower.Basic import Mathlib.Topology.Separation /-! # Priestley spaces This file defines Priestley spaces. A Priestley space is an ordered comp...
Topology\Order\ProjIcc.lean
/- Copyright (c) 2020 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov, Patrick Massot -/ import Mathlib.Order.Interval.Set.ProjIcc import Mathlib.Topology.Order.Basic /-! # Projection onto a closed interval In this file we prove that t...
Topology\Order\ScottTopology.lean
/- Copyright (c) 2023 Christopher Hoskin. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Christopher Hoskin -/ import Mathlib.Topology.Order.UpperLowerSetTopology /-! # Scott topology This file introduces the Scott topology on a preorder. ## Main definitions - `Dir...
Topology\Order\T5.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.Order.Interval.Set.OrdConnectedComponent import Mathlib.Topology.Order.Basic /-! # Linear order is a completely normal Hausdorff topological space ...
Topology\Order\UpperLowerSetTopology.lean
/- Copyright (c) 2023 Christopher Hoskin. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Christopher Hoskin -/ import Mathlib.Topology.AlexandrovDiscrete import Mathlib.Topology.ContinuousFunction.Basic import Mathlib.Topology.Order.LowerUpperTopology /-! # Upper and ...
Topology\Order\Category\AlexDisc.lean
/- Copyright (c) 2023 Yaël Dillies. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yaël Dillies -/ import Mathlib.Topology.Specialization /-! # Category of Alexandrov-discrete topological spaces This defines `AlexDisc`, the category of Alexandrov-discrete topological...
Topology\Order\Category\FrameAdjunction.lean
/- Copyright (c) 2023 Anne Baanen, Sam v. Gool, Leo Mayer, Brendan S. Murphy. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Anne Baanen, Sam v. Gool, Leo Mayer, Brendan S. Murphy -/ import Mathlib.Topology.Category.Locale /-! # Adjunction between Locales and Topologi...
Topology\Order\Hom\Basic.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.Order.Hom.Basic import Mathlib.Topology.ContinuousFunction.Basic /-! # Continuous order homomorphisms This file defines continuous order homomorphisms, t...
Topology\Order\Hom\Esakia.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.Order.Hom.Bounded import Mathlib.Topology.Order.Hom.Basic /-! # Esakia morphisms This file defines pseudo-epimorphisms and Esakia morphisms. We use the ...
Topology\Separation\NotNormal.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.Data.Real.Cardinality import Mathlib.Topology.Separation import Mathlib.Topology.TietzeExtension /-! # Not normal topological spaces In this file we...
Topology\Sets\Closeds.lean
/- Copyright (c) 2020 Floris van Doorn. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Floris van Doorn, Yaël Dillies -/ import Mathlib.Topology.Sets.Opens /-! # Closed sets We define a few types of closed sets in a topological space. ## Main Definitions For a topo...
Topology\Sets\Compacts.lean
/- Copyright (c) 2020 Floris van Doorn. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Floris van Doorn, Yaël Dillies -/ import Mathlib.Topology.Sets.Closeds import Mathlib.Topology.QuasiSeparated /-! # Compact sets We define a few types of compact sets in a topologi...
Topology\Sets\Opens.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, Floris van Doorn -/ import Mathlib.Order.Hom.CompleteLattice import Mathlib.Topology.Bases import Mathlib.Topology.Homeomorph import Mathlib.Topology.Co...
Topology\Sets\Order.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.Order.UpperLower.Basic import Mathlib.Topology.Sets.Closeds /-! # Clopen upper sets In this file we define the type of clopen upper sets. -/ open Set T...
Topology\Sheaves\Forget.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.Ring.Limits import Mathlib.Topology.Sheaves.Sheaf /-! # Checking the sheaf condition on the underlying presheaf of types. If `G : C ...
Topology\Sheaves\Functors.lean
/- Copyright (c) 2021 Junyan Xu. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Junyan Xu, Andrew Yang -/ import Mathlib.Topology.Sheaves.SheafCondition.Sites import Mathlib.CategoryTheory.Sites.Pullback /-! # functors between categories of sheaves Show that the push...
Topology\Sheaves\Init.lean
/- Copyright (c) 2023 Jujian Zhang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jujian Zhang -/ import Aesop /-! # Rule sets related to topological (pre)sheaves This module defines the `Restrict` Aesop rule set. Aesop rule sets only become visible once the file i...
Topology\Sheaves\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.Topology.Sheaves.Sheaf import Mathlib.CategoryTheory.Sites.Limits import Mathlib.CategoryTheory.Limits.FunctorCategory /-! # Presheaves in `C` have li...
Topology\Sheaves\LocallySurjective.lean
/- Copyright (c) 2022 Sam van Gool and Jake Levinson. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Sam van Gool, Jake Levinson -/ import Mathlib.Topology.Sheaves.Presheaf import Mathlib.Topology.Sheaves.Stalks import Mathlib.CategoryTheory.Limits.Preserves.Filtered i...
Topology\Sheaves\LocalPredicate.lean
/- Copyright (c) 2020 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johan Commelin, Scott Morrison, Adam Topaz -/ import Mathlib.Topology.Sheaves.SheafOfFunctions import Mathlib.Topology.Sheaves.Stalks import Mathlib.Topology.Sheaves.SheafCondition.Uni...
Topology\Sheaves\Operations.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.Algebra.Category.Ring.Instances import Mathlib.Algebra.Category.Ring.FilteredColimits import Mathlib.RingTheory.Localization.Basic import Mathlib.Topology.Sh...
Topology\Sheaves\Presheaf.lean
/- Copyright (c) 2018 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison, Mario Carneiro, Reid Barton, Andrew Yang -/ import Mathlib.Topology.Category.TopCat.Opens import Mathlib.CategoryTheory.Adjunction.Unique import Mathlib.CategoryTheory....
Topology\Sheaves\PresheafOfFunctions.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.Yoneda import Mathlib.Topology.Sheaves.Presheaf import Mathlib.Topology.Category.TopCommRingCat import Mathlib.Topology.ContinuousFuncti...
Topology\Sheaves\PUnit.lean
/- Copyright (c) 2022 Jujian Zhang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jujian Zhang -/ import Mathlib.Topology.Sheaves.SheafCondition.Sites /-! # Presheaves on `PUnit` Presheaves on `PUnit` satisfy sheaf condition iff its value at empty set is a terminal ...
Topology\Sheaves\Sheaf.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.Topology.Sheaves.Presheaf import Mathlib.CategoryTheory.Sites.Sheaf import Mathlib.CategoryTheory.Sites.Spaces /-! # Sheaves We define sheaves on a t...
Topology\Sheaves\Sheafify.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.Topology.Sheaves.LocalPredicate import Mathlib.Topology.Sheaves.Stalks /-! # Sheafification of `Type` valued presheaves We construct the sheafificati...
Topology\Sheaves\SheafOfFunctions.lean
/- Copyright (c) 2020 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johan Commelin, Scott Morrison -/ import Mathlib.Topology.Sheaves.PresheafOfFunctions import Mathlib.Topology.Sheaves.SheafCondition.UniqueGluing /-! # Sheaf conditions for presheaves...
Topology\Sheaves\Skyscraper.lean
/- Copyright (c) 2022 Jujian Zhang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jujian Zhang, Junyan Xu -/ import Mathlib.Topology.Sheaves.PUnit import Mathlib.Topology.Sheaves.Stalks import Mathlib.Topology.Sheaves.Functors /-! # Skyscraper (pre)sheaves A skyscra...
Topology\Sheaves\Stalks.lean
/- Copyright (c) 2019 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison, Justus Springer -/ import Mathlib.Topology.Category.TopCat.OpenNhds import Mathlib.Topology.Sheaves.Presheaf import Mathlib.Topology.Sheaves.SheafCondition.UniqueGluing...
Topology\Sheaves\SheafCondition\EqualizerProducts.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.Limits.Shapes.Equalizers import Mathlib.CategoryTheory.Limits.Shapes.Products import Mathlib.Topology.Sheaves.SheafCondition.PairwiseInt...
Topology\Sheaves\SheafCondition\OpensLeCover.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.Topology.Sheaves.SheafCondition.Sites /-! # Another version of the sheaf condition. Given a family of open sets `U : ι → Opens X` we can form the sub...
Topology\Sheaves\SheafCondition\PairwiseIntersections.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.Topology.Sheaves.SheafCondition.OpensLeCover import Mathlib.CategoryTheory.Limits.Final import Mathlib.CategoryTheory.Limits.Preserves.Basic import Mat...
Topology\Sheaves\SheafCondition\Sites.lean
/- Copyright (c) 2021 Justus Springer. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Justus Springer -/ import Mathlib.CategoryTheory.Sites.Spaces import Mathlib.Topology.Sheaves.Sheaf import Mathlib.CategoryTheory.Sites.DenseSubsite /-! # Coverings and sieves; from...
Topology\Sheaves\SheafCondition\UniqueGluing.lean
/- Copyright (c) 2021 Justus Springer. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Justus Springer -/ import Mathlib.Topology.Sheaves.Forget import Mathlib.Topology.Sheaves.SheafCondition.PairwiseIntersections import Mathlib.CategoryTheory.Limits.Shapes.Types /-! #...
Topology\Spectral\Hom.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 /-! # Spectral maps This file defines spectral maps. A map is spectral when it's continuous and the preimage of a compa...