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/- Copyright (c) 2024 Moritz Doll. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Moritz Doll -/ module public import Mathlib.Topology.Algebra.Module.Spaces.ContinuousLinearMap public import Mathlib.Topology.Algebra.Module.Spaces.WeakDual /-! # Topology of pointwise ...
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/- Copyright (c) 2022 Frรฉdรฉric Dupuis. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Frรฉdรฉric Dupuis -/ module public import Mathlib.Topology.Algebra.Module.Spaces.WeakDual public import Mathlib.Algebra.Algebra.Spectrum.Basic public import Mathlib.Topology.Continuous...
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/- Copyright (c) 2024 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ module public import Mathlib.Topology.Algebra.Module.Multilinear.Topology public import Mathlib.Topology.Algebra.Module.Alternating.Basic /-! # Topology on contin...
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/- Copyright (c) 2023 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov, Heather Macbeth, Sรฉbastien Gouรซzel -/ module public import Mathlib.LinearAlgebra.Alternating.Basic public import Mathlib.LinearAlgebra.BilinearMap public import Math...
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[TopologicalSpace M] [AddCommMonoid M'] [Module R M'] [TopologicalSpace M'] [AddCommMonoid N] [Module R N] [TopologicalSpace N] [ContinuousAdd N] [ContinuousConstSMul R N] [AddCommMonoid N'] [Module R N'] [TopologicalSpace N'] [ContinuousAdd N'] [ContinuousConstSMul R N'] /-- `ContinuousAlternatingMap.compContinuo...
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/- Copyright (c) 2020 Kim Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kim Morrison -/ module public import Mathlib.Topology.Sheaves.SheafCondition.Sites /-! # Another version of the sheaf condition. Given a family of open sets `U : ฮน โ†’ Opens X` we can f...
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/- Copyright (c) 2020 Kim Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kim Morrison -/ module public import Mathlib.CategoryTheory.Category.Pairwise public import Mathlib.CategoryTheory.Limits.Constructions.BinaryProducts public import Mathlib.CategoryTheo...
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/- Copyright (c) 2021 Justus Springer. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Justus Springer -/ module public import Mathlib.CategoryTheory.Sites.Spaces public import Mathlib.Topology.Sheaves.Sheaf public import Mathlib.CategoryTheory.Sites.DenseSubsite.Basic...
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/- Copyright (c) 2021 Justus Springer. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Justus Springer -/ module public import Mathlib.Topology.Sheaves.Forget public import Mathlib.Topology.Sheaves.SheafCondition.PairwiseIntersections /-! # The sheaf condition in term...
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/- Copyright (c) 2020 Kim Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kim Morrison -/ module public import Mathlib.CategoryTheory.Limits.Shapes.Equalizers public import Mathlib.CategoryTheory.Limits.Shapes.Products public import Mathlib.Topology.Sheaves.S...
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/- Copyright (c) 2023 Kyle Miller. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kyle Miller -/ module public import Mathlib.Init public import Lean.PrettyPrinter.Delaborator.Basic /-! # Additions to the delaborator -/ @[expose] public section namespace Lean.Prett...
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/- Copyright (c) 2023 Jovan Gerbscheid. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jovan Gerbscheid -/ module public import Mathlib.Init public import Lean.HeadIndex public import Lean.Meta.ExprLens public import Lean.Meta.Check /-! # Find the positions of a pat...
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/- Copyright (c) 2023 Kim Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kim Morrison -/ module public import Mathlib.Init public import Lean.Meta.AppBuilder public import Lean.Meta.Coe /-! # Additions to `Lean.Meta.Basic` Likely these already exist somewh...
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/- Copyright (c) 2022 Kim Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kim Morrison, Gabriel Ebner, Floris van Doorn -/ module public import Mathlib.Init public import Lean.Elab.Tactic.Simp public import Lean.Meta.DiscrTree /-! # Helper functions for usin...
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/- Copyright (c) 2023 Kyle Miller. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kyle Miller -/ module public import Lean.Meta.Tactic.Cleanup public meta import Lean.Meta.Tactic.Refl public import Mathlib.Logic.IsEmpty.Defs /-! # Additions to `Lean.Meta.CongrTheorem...
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/- Copyright (c) 2024 Jovan Gerbscheid. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jovan Gerbscheid -/ module public import Mathlib.Lean.Meta.RefinedDiscrTree.Lookup public import Mathlib.Lean.Meta.RefinedDiscrTree.Initialize /-! A discrimination tree for the pur...
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/- Copyright (c) 2023 Kim Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kim Morrison -/ module public import Mathlib.Init /-! # Additions to `Lean.Meta.DiscrTree` -/ @[expose] public section namespace Lean.Meta.DiscrTree /-- Find keys which match the ex...
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/- Copyright (c) 2019 Robert Y. Lewis. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Mario Carneiro, Kim Morrison -/ module public import Mathlib.Init public import Lean.ToExpr /-! # Additional operations on Expr and rational numbers This file defines some operatio...
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/- Copyright (c) 2023 Kyle Miller. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kyle Miller -/ module public import Mathlib.Data.Set.CoeSort /-! # Additional Expr recognizers needing theory imports -/ @[expose] public section namespace Lean.Expr /-- If `e` is a...
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/- Copyright (c) 2019 Robert Y. Lewis. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Mario Carneiro, Simon Hudon, Kim Morrison, Keeley Hoek, Robert Y. Lewis, Floris van Doorn, Edward Ayers -/ module -- shake: keep-all public import Lean.Expr public import Mathlib.Uti...
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/- Copyright (c) 2019 Robert Y. Lewis. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Mario Carneiro, Simon Hudon, Kim Morrison, Keeley Hoek, Robert Y. Lewis, Floris van Doorn, Edward Ayers, Arthur Paulino, Thomas R. Murrills -/ module -- Import this linter explicitly...
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/- Copyright (c) 2025 Marc Huisinga. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Marc Huisinga, Thomas R. Murrills -/ module public import Mathlib.Lean.Environment public import Lean.Server.InfoUtils public import Lean.Meta.TryThis public import Batteries.Tactic.Li...
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/- Copyright (c) 2023 Kyle Miller. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kyle Miller, Thomas R. Murrills -/ module public import Mathlib.Init public import Lean.Elab.Term /-! # Additions to `Lean.Elab.Term` -/ public meta section namespace Lean.Elab.Term ...
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/- Copyright (c) 2026 Eric Wieser. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Eric Wieser, Kim Morrison -/ module import Mathlib.Init public import Lean.Message public import Lean.Meta.Basic /-! # Tools for extracting `Expr`s from `MessageData` nodes This file ...
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/- Copyright (c) 2025 Lean FRO, LLC. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kim Morrison -/ module import Mathlib.Init public import Lean.Message public import Std.Data.HashSet.Basic /-! # Utilities for analyzing `MessageData` Utility functions for working w...
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/- Copyright (c) 2023 Kim Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kim Morrison, Patrick Massot, Kyle Miller -/ module public import Mathlib.Init public import Lean.Meta.Tactic.Rewrite /-! # Additional declarations for `Lean.Meta.Tactic.Rewrite` -/ @...
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/- Copyright (c) 2024 Jovan Gerbscheid. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jovan Gerbscheid -/ module public import Mathlib.Lean.Meta.RefinedDiscrTree.Encode /-! # Matching with a RefinedDiscrTree This file defines the matching procedure for the `Refined...
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/- Copyright (c) 2024 Jovan Gerbscheid. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jovan Gerbscheid -/ module public import Mathlib.Lean.Meta.RefinedDiscrTree.Basic public import Lean.Meta.CompletionName /-! # Constructing a RefinedDiscrTree `RefinedDiscrTree` i...
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/- Copyright (c) 2024 Jovan Gerbscheid. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jovan Gerbscheid -/ module public import Mathlib.Init /-! # Basic Definitions for `RefinedDiscrTree` We define * `Key`, the discrimination tree key * `LazyEntry`, the partial, laz...
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/- Copyright (c) 2024 Jovan Gerbscheid. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jovan Gerbscheid -/ module public import Mathlib.Lean.Meta.RefinedDiscrTree.Basic public import Lean.Meta.DiscrTree public import Lean.Meta.LazyDiscrTree import all Lean.Meta.DiscrT...
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/- Copyright (c) 2025 Lean FRO, LLC. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kim Morrison -/ module public import Lean.Elab.SyntheticMVars -- Import this linter explicitly to ensure that -- this file has a valid copyright header and module docstring. public imp...
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/- Copyright (c) 2023 Floris van Doorn. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Floris van Doorn, Jon Eugster -/ module public import Mathlib.Lean.Meta /-! # Additions to `Lean.Elab.Tactic.Basic` -/ @[expose] public section open Lean Elab Tactic namespace Le...
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/- Copyright (c) 2025 Damien Thomine. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Damien Thomine -/ module public import Mathlib.Dynamics.TopologicalEntropy.NetEntropy /-! # Topological entropy of subsets: monotonicity, closure, union This file contains general r...
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/- Copyright (c) 2024 Damien Thomine. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Damien Thomine, Pietro Monticone -/ module public import Mathlib.Dynamics.TopologicalEntropy.CoverEntropy /-! # Topological entropy of the image of a set under a semiconjugacy Consid...
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/- Copyright (c) 2024 Damien Thomine. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Damien Thomine, Pietro Monticone -/ module public import Mathlib.Analysis.Asymptotics.ExpGrowth public import Mathlib.Data.ENat.Lattice public import Mathlib.Data.Real.ENatENNReal pub...
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exact (coverEntropyEntourage_antitone T F si_U).trans (le_iSupโ‚‚ (f := fun (i : ฮน) (_ : p i) โ†ฆ coverEntropyEntourage T F (s i)) i h_i) lemma coverEntropyInf_eq_iSup_basis {ฮน : Sort*} {p : ฮน โ†’ Prop} {s : ฮน โ†’ SetRel X X} (h : (๐“ค X).HasBasis p s) (T : X โ†’ X) (F : Set X) : coverEntropyInf T F = โจ† (i : ฮน) (_ : ...
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/- Copyright (c) 2024 Damien Thomine. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Damien Thomine, Pietro Monticone -/ module public import Mathlib.Dynamics.TopologicalEntropy.CoverEntropy /-! # Topological entropy via nets We implement Bowen-Dinaburg's definitions...
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/- Copyright (c) 2024 Damien Thomine. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Damien Thomine, Pietro Monticone -/ module public import Mathlib.Data.Nat.Lattice public import Mathlib.Topology.UniformSpace.Basic /-! # Dynamical entourages Bowen-Dinaburg's defin...
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/- Copyright (c) 2023 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov, Lua Viana Reis, Oliver Butterley -/ module public import Mathlib.Dynamics.BirkhoffSum.Basic public import Mathlib.Algebra.Module.Basic /-! # Birkhoff average In th...
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/- Copyright (c) 2023 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ module public import Mathlib.Dynamics.FixedPoints.Basic public import Mathlib.Algebra.BigOperators.Group.Finset.Basic /-! # Birkhoff sums In this file we define ...
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/- Copyright (c) 2025 Oliver Butterley. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Oliver Butterley, Lua Viana Reis -/ module public import Mathlib.Dynamics.BirkhoffSum.Average public import Mathlib.MeasureTheory.Measure.QuasiMeasurePreserving /-! # Birkhoff sum ...
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/- Copyright (c) 2023 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ module public import Mathlib.Analysis.RCLike.Basic public import Mathlib.Dynamics.BirkhoffSum.Average /-! # Birkhoff average in a normed space In this file we pr...
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/- Copyright (c) 2022 Oliver Nash. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Oliver Nash -/ module public import Mathlib.Algebra.Group.Action.Pointwise.Set.Basic public import Mathlib.Dynamics.FixedPoints.Basic /-! # Results about pointwise operations on sets wi...
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/- Copyright (c) 2020 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov, Johannes Hรถlzl -/ module public import Mathlib.Dynamics.FixedPoints.Basic public import Mathlib.Topology.Separation.Hausdorff /-! # Topological properties of fixed ...
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/- Copyright (c) 2020 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ module public import Mathlib.Algebra.Group.End public import Mathlib.Data.Set.Function /-! # Fixed points of a self-map In this file we define * the predicate `...
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/- Copyright (c) 2021 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ module public import Mathlib.MeasureTheory.Measure.AEMeasurable public import Mathlib.Order.Filter.EventuallyConst /-! # Measure-preserving maps We say that `f :...
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/- Copyright (c) 2022 Oliver Nash. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Oliver Nash -/ module public import Mathlib.Algebra.Order.Ring.Abs public import Mathlib.Dynamics.FixedPoints.Prufer public import Mathlib.Dynamics.Ergodic.Ergodic public import Mathlib....
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/- Copyright (c) 2025 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ module public import Mathlib.Analysis.Convex.Extreme public import Mathlib.Dynamics.Ergodic.Function public import Mathlib.Dynamics.Ergodic.RadonNikodym public imp...
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/- Copyright (c) 2025 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ module public import Mathlib.Dynamics.Ergodic.MeasurePreserving public import Mathlib.MeasureTheory.Measure.Decomposition.RadonNikodym public import Mathlib.Topolo...
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/- Copyright (c) 2023 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ module public import Mathlib.Dynamics.Ergodic.Ergodic public import Mathlib.MeasureTheory.Function.AEEqFun /-! # Functions invariant under a (quasi)ergodic map I...
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/- Copyright (c) 2025 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ module public import Mathlib.Dynamics.Ergodic.Action.OfMinimal public import Mathlib.Topology.Instances.AddCircle.DenseSubgroup public import Mathlib.MeasureTheory...
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/- Copyright (c) 2022 Oliver Nash. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Oliver Nash -/ module public import Mathlib.Dynamics.Ergodic.MeasurePreserving public import Mathlib.MeasureTheory.Measure.Typeclasses.Probability /-! # Ergodic maps and measures Let `...
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/- Copyright (c) 2021 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ module public import Mathlib.MeasureTheory.Constructions.BorelSpace.Basic public import Mathlib.Dynamics.Ergodic.MeasurePreserving public import Mathlib.Combinator...
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/- Copyright (c) 2020 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ module public import Mathlib.Algebra.GCDMonoid.Finset public import Mathlib.Algebra.GCDMonoid.Nat public import Mathlib.Data.Fintype.Card public import Mathlib.Dat...
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/- Copyright (c) 2020 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ module public import Mathlib.Algebra.Group.Action.Defs public import Mathlib.Algebra.Order.Group.Nat public import Mathlib.Algebra.Order.Sub.Basic public import Ma...
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conv_rhs => rw [โ† Nat.mod_add_div n (period m a), pow_add, mul_smul, pow_smul_eq_iff_period_dvd.mpr (dvd_mul_right _ _)] @[to_additive (attr := simp)] theorem zpow_mod_period_smul (j : โ„ค) {g : G} {a : ฮฑ} : g ^ (j % (period g a : โ„ค)) โ€ข a = g ^ j โ€ข a := by conv_rhs => rw [โ† Int.emod_add_mul_ediv j (period g a)...
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/- Copyright (c) 2020 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ module public import Mathlib.Analysis.SpecificLimits.Basic public import Mathlib.Order.Iterate public import Mathlib.Order.SemiconjSup public import Mathlib.Topolo...
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theorem translationNumber_eq_of_semiconjBy {f gโ‚ gโ‚‚ : CircleDeg1Lift} (H : SemiconjBy f gโ‚ gโ‚‚) : ฯ„ gโ‚ = ฯ„ gโ‚‚ := translationNumber_eq_of_dist_bounded 2 fun n => le_of_lt <| dist_map_zero_lt_of_semiconjBy <| H.pow_right n theorem translationNumber_eq_of_semiconj {f gโ‚ gโ‚‚ : CircleDeg1Lift} (H : Function.Sem...
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/- Copyright (c) 2024 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ module public import Mathlib.Dynamics.Ergodic.Action.Basic public import Mathlib.MeasureTheory.Group.Prod /-! # Regular action of a group on itself is ergodic In...
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/- Copyright (c) 2024 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ module public import Mathlib.MeasureTheory.Group.AEStabilizer public import Mathlib.Dynamics.Ergodic.Ergodic /-! # Ergodic group actions A group action of `G` on...
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/- Copyright (c) 2024 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ module public import Mathlib.Dynamics.Ergodic.Action.Regular public import Mathlib.MeasureTheory.Measure.ContinuousPreimage public import Mathlib.MeasureTheory.Mea...
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/- Copyright (c) 2019 Zhouhang Zhou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Zhouhang Zhou, Sรฉbastien Gouรซzel, Frรฉdรฉric Dupuis -/ module public import Mathlib.Analysis.InnerProductSpace.LinearMap public import Mathlib.LinearAlgebra.FiniteDimensional.Lemmas publ...
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/- Copyright (c) 2026 Hampus Nyberg. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Hampus Nyberg, Yaรซl Dillies -/ module public import Mathlib.Analysis.InnerProductSpace.Completion public import Mathlib.Analysis.InnerProductSpace.Positive /-! # Reproducing Kernel Hi...
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/- Copyright (c) 2019 Zhouhang Zhou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Zhouhang Zhou, Sรฉbastien Gouรซzel, Frรฉdรฉric Dupuis -/ module public import Mathlib.Analysis.Convex.Uniform public import Mathlib.Analysis.InnerProductSpace.Basic /-! # Convexity proper...
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/- Copyright (c) 2023 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ module public import Mathlib.Analysis.InnerProductSpace.Projection.Submodule public import Mathlib.Dynamics.BirkhoffSum.NormedSpace /-! # Von Neumann Mean Ergodic...
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/- Copyright (c) 2025 Monica Omar. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Monica Omar -/ module public import Mathlib.Analysis.InnerProductSpace.Adjoint public import Mathlib.LinearAlgebra.TensorProduct.Finiteness public import Mathlib.RingTheory.TensorProduct...
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/- Copyright (c) 2025 Monica Omar. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Monica Omar -/ module public import Mathlib.Analysis.InnerProductSpace.PiL2 public import Mathlib.LinearAlgebra.Basis.MulOpposite /-! # Inner product space on `Hแตแต’แต–` This file defines ...
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/- Copyright (c) 2021 Heather Macbeth. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Heather Macbeth, Frรฉdรฉric Dupuis -/ module public import Mathlib.Analysis.InnerProductSpace.Adjoint public import Mathlib.Analysis.InnerProductSpace.Calculus public import Mathlib.An...
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/- Copyright (c) 2024 Frรฉdรฉric Dupuis. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Frรฉdรฉric Dupuis -/ module public import Mathlib.Analysis.InnerProductSpace.Dual public import Mathlib.Analysis.LocallyConvex.WeakOperatorTopology /-! # The weak operator topology in...
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/- Copyright (c) 2020 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ module public import Mathlib.Analysis.InnerProductSpace.PiL2 public import Mathlib.Analysis.SpecialFunctions.Sqrt public import Mathlib.Analysis.Normed.Module.Ball...
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/- Copyright (c) 2022 Heather Macbeth. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Heather Macbeth -/ module public import Mathlib.Analysis.InnerProductSpace.Dual public import Mathlib.Analysis.InnerProductSpace.Orientation public import Mathlib.LinearAlgebra.Alter...
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LinearIsometryEquiv.symm_apply_apply] /-- The Kahler form on an oriented real inner product space of dimension 2 can be evaluated in terms of a complex-number representation of the space. -/ theorem kahler_map_complex (f : E โ‰ƒโ‚—แตข[โ„] โ„‚) (hf : Orientation.map (Fin 2) f.toLinearEquiv o = Complex.orientation) (x y : E)...
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/- Copyright (c) 2019 Zhouhang Zhou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Zhouhang Zhou, Sรฉbastien Gouรซzel, Frรฉdรฉric Dupuis -/ module public import Mathlib.Analysis.Normed.Module.Completion public import Mathlib.Analysis.InnerProductSpace.Continuous /-! # C...
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/- Copyright (c) 2024 Jireh Loreaux. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jireh Loreaux -/ module public import Mathlib.Analysis.InnerProductSpace.Positive public import Mathlib.Analysis.CStarAlgebra.ContinuousFunctionalCalculus.Basic public import Mathlib.A...
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/- Copyright (c) 2025 Monica Omar. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Monica Omar -/ module public import Mathlib.Analysis.InnerProductSpace.TensorProduct public import Mathlib.RingTheory.Coalgebra.Basic /-! # Finite-dimensional inner product space with a...
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/- Copyright (c) 2025 Stefan Kebekus. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Stefan Kebekus -/ module public import Mathlib.Analysis.Calculus.ContDiff.Basic public import Mathlib.Analysis.Calculus.ContDiff.Operations public import Mathlib.Analysis.Calculus.Ite...
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/- Copyright (c) 2026 Yoh Tanimoto. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yoh Tanimoto -/ module public import Mathlib.Analysis.CStarAlgebra.Module.Constructions public import Mathlib.Analysis.InnerProductSpace.Projection.Submodule /-! # Standard subspaces o...
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/- Copyright (c) 2022 Joseph Myers. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joseph Myers, Heather Macbeth -/ module public import Mathlib.Analysis.InnerProductSpace.GramSchmidtOrtho public import Mathlib.LinearAlgebra.Orientation /-! # Orientations of real inn...
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/- Copyright (c) 2019 Zhouhang Zhou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Zhouhang Zhou, Sรฉbastien Gouรซzel, Frรฉdรฉric Dupuis -/ module public import Mathlib.Algebra.BigOperators.Field public import Mathlib.Analysis.Complex.Basic public import Mathlib.Analysis...
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exact div_le_one_of_leโ‚€ (abs_real_inner_le_norm x y) (by positivity) /-- The inner product of a vector with a multiple of itself. -/ theorem real_inner_smul_self_left (x : F) (r : โ„) : โŸชr โ€ข x, xโŸซ_โ„ = r * (โ€–xโ€– * โ€–xโ€–) := by rw [real_inner_smul_left, โ† real_inner_self_eq_norm_mul_norm] /-- The inner product of a vecto...
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/- Copyright (c) 2019 Zhouhang Zhou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Zhouhang Zhou, Sรฉbastien Gouรซzel, Frรฉdรฉric Dupuis -/ module public import Mathlib.Analysis.InnerProductSpace.Orthonormal /-! # Subspaces of inner product spaces This file defines the...
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/- Copyright (c) 2026 Niels Voss, Arnav Mehta. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Niels Voss, Arnav Mehta -/ module public import Mathlib.Analysis.InnerProductSpace.Positive public import Mathlib.LinearAlgebra.Eigenspace.Zero /-! # Singular values for fin...
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/- Copyright (c) 2022 Jiale Miao. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jiale Miao, Kevin Buzzard, Alexander Bentkamp -/ module public import Mathlib.Analysis.InnerProductSpace.PiL2 public import Mathlib.LinearAlgebra.Matrix.Block /-! # Gram-Schmidt Orthogon...
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/- Copyright (c) 2021 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ module public import Mathlib.Analysis.InnerProductSpace.Calculus public import Mathlib.Analysis.InnerProductSpace.PiL2 public import Mathlib.Topology.MetricSpace.P...
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/- Copyright (c) 2024 Jon Bannon. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jon Bannon, Jack Cheverton, Samyak Dhar Tuladhar -/ module public import Mathlib.Analysis.InnerProductSpace.Spectrum public import Mathlib.LinearAlgebra.Eigenspace.Pi public import Mathli...
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/- Copyright (c) 2020 Heather Macbeth. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Heather Macbeth -/ module public import Mathlib.Topology.Algebra.Algebra public import Mathlib.Analysis.InnerProductSpace.Convex public import Mathlib.Algebra.Module.LinearMap.Rat pu...
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/- Copyright (c) 2022 Heather Macbeth. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Heather Macbeth -/ module public import Mathlib.Analysis.InnerProductSpace.Projection.Basic public import Mathlib.Analysis.Normed.Lp.lpSpace public import Mathlib.Analysis.InnerProdu...
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HilbertBasis.mk b.orthonormal <| by simpa only [โ† OrthonormalBasis.coe_toBasis, b.toBasis.span_eq, eq_top_iff] using @subset_closure E _ _ end @[simp] theorem _root_.OrthonormalBasis.coe_toHilbertBasis [Fintype ฮน] (b : OrthonormalBasis ฮน ๐•œ E) : (b.toHilbertBasis : ฮน โ†’ E) = b := HilbertBasis.coe_mk _ ...
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/- Copyright (c) 2019 Zhouhang Zhou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Zhouhang Zhou, Sรฉbastien Gouรซzel, Frรฉdรฉric Dupuis -/ module public import Mathlib.Algebra.QuadraticDiscriminant public import Mathlib.Analysis.LocallyConvex.WithSeminorms public import...
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topology to make sure it is defeq to an already existing topology. -/ @[reducible] def toNormedSpaceOfTopology [tF : TopologicalSpace F] [IsTopologicalAddGroup F] [ContinuousConstSMul ๐•œ F] (h : ContinuousAt (fun (v : F) โ†ฆ cd.inner v v) 0) (h' : IsVonNBounded ๐•œ {v : F | re (cd.inner v v) < 1}) : letI :...
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/- Copyright (c) 2020 Joseph Myers. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Joseph Myers, Sรฉbastien Gouรซzel, Heather Macbeth -/ module public import Mathlib.Analysis.InnerProductSpace.Projection.FiniteDimensional public import Mathlib.Analysis.Normed.Lp.PiLp pu...
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protected def map {G : Type*} [NormedAddCommGroup G] [InnerProductSpace ๐•œ G] (b : OrthonormalBasis ฮน ๐•œ E) (L : E โ‰ƒโ‚—แตข[๐•œ] G) : OrthonormalBasis ฮน ๐•œ G where repr := L.symm.trans b.repr @[simp] protected theorem map_apply {G : Type*} [NormedAddCommGroup G] [InnerProductSpace ๐•œ G] (b : OrthonormalBasis ฮน ๐•œ ...
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invFun b := โŸจhV.sigmaOrthonormalBasisIndexEquiv hn hV' โŸจi, bโŸฉ, by simp [subordinateOrthonormalBasisIndex_def]โŸฉ left_inv := by grind [subordinateOrthonormalBasisIndex_def, Fin.cast_eq_self] right_inv := by grind theorem DirectSum.IsInternal.card_filter_subordinateOrthonormalBasisIndex_eq (hV' : OrthogonalFa...
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/- Copyright (c) 2022 Anatole Dedecker. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Anatole Dedecker -/ module public import Mathlib.Analysis.InnerProductSpace.Spectrum public import Mathlib.Analysis.Matrix.Hermitian public import Mathlib.Analysis.Matrix.Order publ...
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โ† Real.sqrt_mul (hT.toLinearMap.nonneg_eigenvalues rfl _), Real.sqrt_mul_self (hT.toLinearMap.nonneg_eigenvalues rfl _), mul_comm _ (โŸช_, _โŸซ_๐•œ), โ† smul_eq_mul, smul_assoc, โ† hT.isSymmetric.apply_eigenvectorBasis, โ† map_smul, โ† map_sum, โ† OrthonormalBasis.repr_apply_apply, OrthonormalBasis.sum_repr, coe_coe]...
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/- Copyright (c) 2022 Daniel Roca Gonzรกlez. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Daniel Roca Gonzรกlez -/ module public import Mathlib.Analysis.InnerProductSpace.Dual /-! # The Lax-Milgram Theorem We consider a Hilbert space `V` over `โ„` equipped with a bou...
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/- Copyright (c) 2025 Ivรกn Renison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Ivรกn Renison -/ module public import Mathlib.Analysis.InnerProductSpace.PiL2 public import Mathlib.Analysis.InnerProductSpace.Spectrum public import Mathlib.LinearAlgebra.Eigenspace.Cha...
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/- Copyright (c) 2021 Yourong Zang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yourong Zang -/ module public import Mathlib.Analysis.Normed.Operator.Conformal public import Mathlib.Analysis.InnerProductSpace.LinearMap /-! # Conformal maps between inner product sp...
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/- Copyright (c) 2021 Frรฉdรฉric Dupuis. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Frรฉdรฉric Dupuis, Heather Macbeth -/ module public import Mathlib.Algebra.Star.UnitaryStarAlgAut public import Mathlib.Analysis.InnerProductSpace.Dual public import Mathlib.Analysis.I...
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haveI := FiniteDimensional.complete ๐•œ E haveI := FiniteDimensional.complete ๐•œ F simpa using A.toContinuousLinearMap.orthogonal_ker /-- 7.6(a) from [axler2024]. See `ContinuousLinearMap.orthogonal_range` for the infinite-dimensional version. -/ lemma orthogonal_range (A : E โ†’โ‚—[๐•œ] F) : A.rangeแ—ฎ = A.adjoint.ker :=...