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Mathlib.CategoryTheory.Limits.Connected
{ "line": 72, "column": 4 }
{ "line": 72, "column": 16 }
[ { "pp": "J : Type u₁\ninst✝² : Category.{v₁, u₁} J\nC : Type u₂\ninst✝¹ : Category.{v₂, u₂} C\nX : C\ninst✝ : IsConnected J\ns : Cone ((Functor.const J).obj X)\nj : J\n⊢ s.π.app (Classical.arbitrary J) ≫ 𝟙 X = s.π.app j", "usedConstants": [ "Eq.mpr", "CategoryTheory.Limits.Cone.π", "Categ...
rw [comp_id]
Lean.Parser.Tactic._aux_Init_Tactics___macroRules_Lean_Parser_Tactic_rwSeq_1
Lean.Parser.Tactic.rwSeq
Mathlib.CategoryTheory.WithTerminal.Basic
{ "line": 342, "column": 8 }
{ "line": 344, "column": 15 }
[ { "pp": "C : Type u\ninst✝¹ : Category.{v, u} C\nD : Type u_1\ninst✝ : Category.{v_1, u_1} D\nF : WithTerminal C ⥤ D\nx y : C\nf : x ⟶ y\n⊢ ((𝟭 (C ⥤ D)).obj (incl ⋙ F)).map f ≫ F.map (starTerminal.from (of y)) =\n F.map (starTerminal.from (of x)) ≫ ((Functor.const C).obj (F.obj star)).map f", "usedConst...
dsimp rw [Category.comp_id, ← F.map_comp] congr 1
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.CategoryTheory.WithTerminal.Basic
{ "line": 342, "column": 8 }
{ "line": 344, "column": 15 }
[ { "pp": "C : Type u\ninst✝¹ : Category.{v, u} C\nD : Type u_1\ninst✝ : Category.{v_1, u_1} D\nF : WithTerminal C ⥤ D\nx y : C\nf : x ⟶ y\n⊢ ((𝟭 (C ⥤ D)).obj (incl ⋙ F)).map f ≫ F.map (starTerminal.from (of y)) =\n F.map (starTerminal.from (of x)) ≫ ((Functor.const C).obj (F.obj star)).map f", "usedConst...
dsimp rw [Category.comp_id, ← F.map_comp] congr 1
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.CategoryTheory.Limits.Shapes.RegularMono
{ "line": 495, "column": 6 }
{ "line": 496, "column": 58 }
[ { "pp": "C : Type u₁\ninst✝¹ : Category.{v₁, u₁} C\nX✝ Y B X : C\nf : X ⟶ B\ninst✝ : EffectiveEpi f\nc : PullbackCone f f\nhc : IsLimit c\ns : Cocone (parallelPair c.fst c.snd)\nZ✝ : C\ng₁ g₂ : Z✝ ⟶ X\nhg : g₁ ≫ f = g₂ ≫ f\n⊢ g₁ ≫ Cofork.π s = g₂ ≫ Cofork.π s", "usedConstants": [ "Eq.mpr", "Cate...
rw [← PullbackCone.IsLimit.lift_snd hc g₁ g₂ hg, Category.assoc, ← Cofork.app_zero_eq_comp_π_right]
Lean.Parser.Tactic._aux_Init_Tactics___macroRules_Lean_Parser_Tactic_rwSeq_1
Lean.Parser.Tactic.rwSeq
Mathlib.CategoryTheory.Limits.Shapes.Opposites.Equalizers
{ "line": 179, "column": 2 }
{ "line": 179, "column": 33 }
[ { "pp": "C : Type u₁\ninst✝ : Category.{v₁, u₁} C\nX Y : C\nf g : X ⟶ Y\nc : Cofork f g\n⊢ c.op.unop.π = c.π", "usedConstants": [ "Opposite", "CategoryTheory.CategoryStruct.toQuiver", "Quiver.Hom", "CategoryTheory.Limits.WalkingParallelPair", "congrArg", "Quiver.Hom.op", ...
simp [Fork.unop_π, Cofork.op_ι]
Lean.Elab.Tactic.evalSimp
Lean.Parser.Tactic.simp
Mathlib.CategoryTheory.Limits.Shapes.Opposites.Equalizers
{ "line": 179, "column": 2 }
{ "line": 179, "column": 33 }
[ { "pp": "C : Type u₁\ninst✝ : Category.{v₁, u₁} C\nX Y : C\nf g : X ⟶ Y\nc : Cofork f g\n⊢ c.op.unop.π = c.π", "usedConstants": [ "Opposite", "CategoryTheory.CategoryStruct.toQuiver", "Quiver.Hom", "CategoryTheory.Limits.WalkingParallelPair", "congrArg", "Quiver.Hom.op", ...
simp [Fork.unop_π, Cofork.op_ι]
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.CategoryTheory.Limits.Shapes.Opposites.Equalizers
{ "line": 179, "column": 2 }
{ "line": 179, "column": 33 }
[ { "pp": "C : Type u₁\ninst✝ : Category.{v₁, u₁} C\nX Y : C\nf g : X ⟶ Y\nc : Cofork f g\n⊢ c.op.unop.π = c.π", "usedConstants": [ "Opposite", "CategoryTheory.CategoryStruct.toQuiver", "Quiver.Hom", "CategoryTheory.Limits.WalkingParallelPair", "congrArg", "Quiver.Hom.op", ...
simp [Fork.unop_π, Cofork.op_ι]
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.CategoryTheory.Limits.Shapes.Opposites.Equalizers
{ "line": 205, "column": 2 }
{ "line": 205, "column": 33 }
[ { "pp": "C : Type u₁\ninst✝ : Category.{v₁, u₁} C\nX Y : Cᵒᵖ\nf g : X ⟶ Y\nc : Fork f g\n⊢ c.unop.op.ι = c.ι", "usedConstants": [ "Opposite", "Quiver.opposite", "CategoryTheory.CategoryStruct.toQuiver", "Quiver.Hom", "CategoryTheory.Limits.WalkingParallelPair", "congrArg"...
simp [Fork.unop_π, Cofork.op_ι]
Lean.Elab.Tactic.evalSimp
Lean.Parser.Tactic.simp
Mathlib.CategoryTheory.Limits.Shapes.Opposites.Equalizers
{ "line": 205, "column": 2 }
{ "line": 205, "column": 33 }
[ { "pp": "C : Type u₁\ninst✝ : Category.{v₁, u₁} C\nX Y : Cᵒᵖ\nf g : X ⟶ Y\nc : Fork f g\n⊢ c.unop.op.ι = c.ι", "usedConstants": [ "Opposite", "Quiver.opposite", "CategoryTheory.CategoryStruct.toQuiver", "Quiver.Hom", "CategoryTheory.Limits.WalkingParallelPair", "congrArg"...
simp [Fork.unop_π, Cofork.op_ι]
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.CategoryTheory.Limits.Shapes.Opposites.Equalizers
{ "line": 205, "column": 2 }
{ "line": 205, "column": 33 }
[ { "pp": "C : Type u₁\ninst✝ : Category.{v₁, u₁} C\nX Y : Cᵒᵖ\nf g : X ⟶ Y\nc : Fork f g\n⊢ c.unop.op.ι = c.ι", "usedConstants": [ "Opposite", "Quiver.opposite", "CategoryTheory.CategoryStruct.toQuiver", "Quiver.Hom", "CategoryTheory.Limits.WalkingParallelPair", "congrArg"...
simp [Fork.unop_π, Cofork.op_ι]
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.CategoryTheory.Limits.Shapes.RegularMono
{ "line": 499, "column": 14 }
{ "line": 499, "column": 22 }
[ { "pp": "case zero\nC : Type u₁\ninst✝¹ : Category.{v₁, u₁} C\nX✝ Y B X : C\nf : X ⟶ B\ninst✝ : EffectiveEpi f\nc : PullbackCone f f\nhc : IsLimit c\ns : Cocone (parallelPair c.fst c.snd)\nthis : f ≫ EffectiveEpi.desc f (s.ι.app WalkingParallelPair.one) ⋯ = s.ι.app WalkingParallelPair.one\n⊢ (Cofork.ofπ f ⋯).ι....
simp_all
Lean.Elab.Tactic.evalSimpAll
Lean.Parser.Tactic.simpAll
Mathlib.CategoryTheory.Limits.Shapes.RegularMono
{ "line": 499, "column": 14 }
{ "line": 499, "column": 22 }
[ { "pp": "case zero\nC : Type u₁\ninst✝¹ : Category.{v₁, u₁} C\nX✝ Y B X : C\nf : X ⟶ B\ninst✝ : EffectiveEpi f\nc : PullbackCone f f\nhc : IsLimit c\ns : Cocone (parallelPair c.fst c.snd)\nthis : f ≫ EffectiveEpi.desc f (s.ι.app WalkingParallelPair.one) ⋯ = s.ι.app WalkingParallelPair.one\n⊢ (Cofork.ofπ f ⋯).ι....
simp_all
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.CategoryTheory.Limits.Shapes.RegularMono
{ "line": 499, "column": 14 }
{ "line": 499, "column": 22 }
[ { "pp": "case zero\nC : Type u₁\ninst✝¹ : Category.{v₁, u₁} C\nX✝ Y B X : C\nf : X ⟶ B\ninst✝ : EffectiveEpi f\nc : PullbackCone f f\nhc : IsLimit c\ns : Cocone (parallelPair c.fst c.snd)\nthis : f ≫ EffectiveEpi.desc f (s.ι.app WalkingParallelPair.one) ⋯ = s.ι.app WalkingParallelPair.one\n⊢ (Cofork.ofπ f ⋯).ι....
simp_all
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.CategoryTheory.Limits.Shapes.RegularMono
{ "line": 499, "column": 14 }
{ "line": 499, "column": 22 }
[ { "pp": "case one\nC : Type u₁\ninst✝¹ : Category.{v₁, u₁} C\nX✝ Y B X : C\nf : X ⟶ B\ninst✝ : EffectiveEpi f\nc : PullbackCone f f\nhc : IsLimit c\ns : Cocone (parallelPair c.fst c.snd)\nthis : f ≫ EffectiveEpi.desc f (s.ι.app WalkingParallelPair.one) ⋯ = s.ι.app WalkingParallelPair.one\n⊢ (Cofork.ofπ f ⋯).ι.a...
simp_all
Lean.Elab.Tactic.evalSimpAll
Lean.Parser.Tactic.simpAll
Mathlib.CategoryTheory.Limits.Shapes.RegularMono
{ "line": 499, "column": 14 }
{ "line": 499, "column": 22 }
[ { "pp": "case one\nC : Type u₁\ninst✝¹ : Category.{v₁, u₁} C\nX✝ Y B X : C\nf : X ⟶ B\ninst✝ : EffectiveEpi f\nc : PullbackCone f f\nhc : IsLimit c\ns : Cocone (parallelPair c.fst c.snd)\nthis : f ≫ EffectiveEpi.desc f (s.ι.app WalkingParallelPair.one) ⋯ = s.ι.app WalkingParallelPair.one\n⊢ (Cofork.ofπ f ⋯).ι.a...
simp_all
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.CategoryTheory.Limits.Shapes.RegularMono
{ "line": 499, "column": 14 }
{ "line": 499, "column": 22 }
[ { "pp": "case one\nC : Type u₁\ninst✝¹ : Category.{v₁, u₁} C\nX✝ Y B X : C\nf : X ⟶ B\ninst✝ : EffectiveEpi f\nc : PullbackCone f f\nhc : IsLimit c\ns : Cocone (parallelPair c.fst c.snd)\nthis : f ≫ EffectiveEpi.desc f (s.ι.app WalkingParallelPair.one) ⋯ = s.ι.app WalkingParallelPair.one\n⊢ (Cofork.ofπ f ⋯).ι.a...
simp_all
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.CategoryTheory.MorphismProperty.Limits
{ "line": 322, "column": 35 }
{ "line": 325, "column": 61 }
[ { "pp": "C : Type u\ninst✝¹ : Category.{v, u} C\nP : MorphismProperty C\ninst✝ : P.RespectsIso\nH : ∀ {X Y Z : C} (f : Z ⟶ X) (g : Z ⟶ Y) [HasPushout f g], P f → ∃ T inl inr, IsPushout f g inl inr ∧ P inr\n⊢ P.IsStableUnderCobaseChange", "usedConstants": [ "Eq.mpr", "CategoryTheory.IsPushout.iso...
by refine .mk' fun X Y S f g _ hg ↦ ?_ obtain ⟨T, inl, inr, h, hinl⟩ := H f g hg rwa [← h.inr_isoPushout_hom, P.cancel_right_of_respectsIso]
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.CategoryTheory.ObjectProperty.Small
{ "line": 116, "column": 2 }
{ "line": 116, "column": 62 }
[ { "pp": "C : Type u\ninst✝¹ : Category.{v, u} C\nP : ObjectProperty C\ninst✝ : ObjectProperty.EssentiallySmall.{w, v, u} P\nQ : ObjectProperty C\nw✝ : ObjectProperty.Small.{w, v, u} Q\nhQ : P ≤ Q.isoClosure\nP' : ObjectProperty C := Q ⊓ P.isoClosure\nφ : Subtype P' → Subtype P\nhφ : ∀ (X' : Subtype P'), Nonempt...
refine ⟨fun X ↦ X ∈ Set.range (Subtype.val ∘ φ), ?_, ?_, ?_⟩
Lean.Elab.Tactic.evalRefine
Lean.Parser.Tactic.refine
Mathlib.CategoryTheory.MorphismProperty.Limits
{ "line": 888, "column": 49 }
{ "line": 892, "column": 90 }
[ { "pp": "C : Type u\ninst✝¹ : Category.{v, u} C\ninst✝ : HasPullbacks C\nP : MorphismProperty C\nhP : P.IsStableUnderComposition\nX Y Z : C\nf : X ⟶ Y\ng : Y ⟶ Z\nhf : P.universally f\nhg : P.universally g\nX' Z' : C\ni₁ : X' ⟶ X\ni₂ : Z' ⟶ Z\nf' : X' ⟶ Z'\nH : IsPullback f' i₁ i₂ (f ≫ g)\n⊢ P f'", "usedCon...
by have := pullback.lift_fst _ _ (H.w.trans (Category.assoc _ _ _).symm) rw [← this] at H ⊢ apply P.comp_mem _ _ _ (hg _ _ _ <| IsPullback.of_hasPullback _ _) exact hf _ _ _ (H.of_right (pullback.lift_snd _ _ _) (IsPullback.of_hasPullback i₂ g))
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.CategoryTheory.ObjectProperty.LimitsOfShape
{ "line": 147, "column": 12 }
{ "line": 147, "column": 50 }
[ { "pp": "C : Type u_1\nD : Type u_2\ninst✝³ : Category.{v_1, u_1} C\ninst✝² : Category.{v_2, u_2} D\nP : ObjectProperty C\nJ : Type u'\ninst✝¹ : Category.{v', u'} J\nJ' : Type u''\ninst✝ : Category.{v'', u''} J'\n⊢ ∀ {X Y : C} (x : X ≅ Y), P.limitsOfShape J X → P.limitsOfShape J Y", "usedConstants": [ ...
by rintro _ _ e ⟨h⟩; exact ⟨h.ofIso e⟩
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.CategoryTheory.ObjectProperty.ColimitsOfShape
{ "line": 155, "column": 12 }
{ "line": 155, "column": 50 }
[ { "pp": "C : Type u_1\nD : Type u_2\ninst✝³ : Category.{v_1, u_1} C\ninst✝² : Category.{v_2, u_2} D\nP : ObjectProperty C\nJ : Type u'\ninst✝¹ : Category.{v', u'} J\nJ' : Type u''\ninst✝ : Category.{v'', u''} J'\n⊢ ∀ {X Y : C} (x : X ≅ Y), P.colimitsOfShape J X → P.colimitsOfShape J Y", "usedConstants": [ ...
by rintro _ _ e ⟨h⟩; exact ⟨h.ofIso e⟩
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.CategoryTheory.ConcreteCategory.EpiMono
{ "line": 122, "column": 4 }
{ "line": 122, "column": 48 }
[ { "pp": "case mpr\nC : Type u\ninst✝² : Category.{v, u} C\nFC : C → C → Type u_1\nCC : C → Type w\ninst✝¹ : (X Y : C) → FunLike (FC X Y) (CC X) (CC Y)\ninst✝ : ConcreteCategory C FC\na✝ : (forget C).PreservesMonomorphisms\nX✝ Y✝ : C\nf : X✝ ⟶ Y✝\nhf : monomorphisms C f\nthis : Mono f\n⊢ MorphismProperty.injecti...
change Function.Injective ((forget C).map f)
Lean.Elab.Tactic.evalChange
Lean.Parser.Tactic.change
Mathlib.CategoryTheory.Limits.Constructions.Equalizers
{ "line": 108, "column": 10 }
{ "line": 108, "column": 79 }
[ { "pp": "case refine_3\nC : Type u\ninst✝⁵ : Category.{v, u} C\nD : Type u'\ninst✝⁴ : Category.{v', u'} D\nG : C ⥤ D\ninst✝³ : HasBinaryProducts C\ninst✝² : HasPullbacks C\ninst✝¹ : PreservesLimitsOfShape (Discrete WalkingPair) G\ninst✝ : PreservesLimitsOfShape WalkingCospan G\nK : WalkingParallelPair ⥤ C\nc : ...
apply (mapIsLimitOfPreservesOfIsLimit G _ _ (prodIsProd _ _)).hom_ext
Lean.Elab.Tactic.evalApply
Lean.Parser.Tactic.apply
Mathlib.CategoryTheory.Limits.Preserves.Shapes.Equalizers
{ "line": 81, "column": 2 }
{ "line": 81, "column": 73 }
[ { "pp": "C : Type u₁\ninst✝³ : Category.{v₁, u₁} C\nD : Type u₂\ninst✝² : Category.{v₂, u₂} D\nG : C ⥤ D\nX Y : C\nf g : X ⟶ Y\ninst✝¹ : HasEqualizer f g\ninst✝ : HasEqualizer (G.map f) (G.map g)\ni : IsIso (equalizerComparison f g G)\n⊢ PreservesLimit (parallelPair f g) G", "usedConstants": [ "Catego...
apply preservesLimit_of_preserves_limit_cone (equalizerIsEqualizer f g)
Lean.Elab.Tactic.evalApply
Lean.Parser.Tactic.apply
Mathlib.CategoryTheory.Limits.Shapes.NormalMono.Equalizers
{ "line": 62, "column": 55 }
{ "line": 62, "column": 88 }
[ { "pp": "C : Type u_1\ninst✝⁶ : Category.{v_1, u_1} C\ninst✝⁵ : HasZeroMorphisms C\ninst✝⁴ : HasFiniteProducts C\ninst✝³ : HasKernels C\ninst✝² : IsNormalMonoCategory C\nX Y Z : C\na : X ⟶ Z\nb : Y ⟶ Z\ninst✝¹ : Mono a\ninst✝ : Mono b\nP : C\nf : Z ⟶ P\nhaf : a ≫ f = 0\ni : IsLimit (KernelFork.ofι a haf)\nQ : C...
rw [PullbackCone.condition_assoc]
Lean.Parser.Tactic._aux_Init_Tactics___macroRules_Lean_Parser_Tactic_rwSeq_1
Lean.Parser.Tactic.rwSeq
Mathlib.CategoryTheory.Limits.Shapes.NormalMono.Equalizers
{ "line": 62, "column": 55 }
{ "line": 62, "column": 88 }
[ { "pp": "C : Type u_1\ninst✝⁶ : Category.{v_1, u_1} C\ninst✝⁵ : HasZeroMorphisms C\ninst✝⁴ : HasFiniteProducts C\ninst✝³ : HasKernels C\ninst✝² : IsNormalMonoCategory C\nX Y Z : C\na : X ⟶ Z\nb : Y ⟶ Z\ninst✝¹ : Mono a\ninst✝ : Mono b\nP : C\nf : Z ⟶ P\nhaf : a ≫ f = 0\ni : IsLimit (KernelFork.ofι a haf)\nQ : C...
rw [PullbackCone.condition_assoc]
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.CategoryTheory.Limits.Shapes.NormalMono.Equalizers
{ "line": 62, "column": 55 }
{ "line": 62, "column": 88 }
[ { "pp": "C : Type u_1\ninst✝⁶ : Category.{v_1, u_1} C\ninst✝⁵ : HasZeroMorphisms C\ninst✝⁴ : HasFiniteProducts C\ninst✝³ : HasKernels C\ninst✝² : IsNormalMonoCategory C\nX Y Z : C\na : X ⟶ Z\nb : Y ⟶ Z\ninst✝¹ : Mono a\ninst✝ : Mono b\nP : C\nf : Z ⟶ P\nhaf : a ≫ f = 0\ni : IsLimit (KernelFork.ofι a haf)\nQ : C...
rw [PullbackCone.condition_assoc]
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.CategoryTheory.Abelian.NonPreadditive
{ "line": 251, "column": 2 }
{ "line": 252, "column": 31 }
[ { "pp": "C : Type u\ninst✝¹ : Category.{v, u} C\ninst✝ : NonPreadditiveAbelian C\nA : C\nhlp : prod.lift (𝟙 A) 0 ≫ prod.snd = 0\nhp1 : IsLimit (KernelFork.ofι (prod.lift (𝟙 A) 0) hlp) :=\n Fork.IsLimit.mk (KernelFork.ofι (prod.lift (𝟙 A) 0) hlp) (fun s ↦ s.ι ≫ prod.fst) ⋯ ⋯\n⊢ Epi (r A)", "usedConstants...
let hp2 : IsColimit (CokernelCofork.ofπ (Limits.prod.snd : A ⨯ A ⟶ A) hlp) := epiIsCokernelOfKernel _ hp1
Lean.Parser.Tactic._aux_Init_Tactics___macroRules_Lean_Parser_Tactic_tacticLet___1
Lean.Parser.Tactic.tacticLet__
Mathlib.Algebra.Category.CommAlgCat.Monoidal
{ "line": 48, "column": 6 }
{ "line": 48, "column": 70 }
[ { "pp": "case hf\nR : Type u\ninst✝ : CommRing R\nA B C D T✝ : CommAlgCat R\nf : A ⟶ T✝\ng : B ⟶ T✝\nm : (A.binaryCofan B).pt ⟶ T✝\nhm₁ : (A.binaryCofan B).inl ≫ m = f\nhm₂ : (A.binaryCofan B).inr ≫ m = g\n⊢ Algebra.TensorProduct.liftEquiv.symm (Hom.hom m) = ⟨(ConcreteCategory.hom f, ConcreteCategory.hom g), ⋯⟩...
exact Subtype.ext (Prod.ext congr(($hm₁).hom) congr(($hm₂).hom))
Lean.Elab.Tactic.evalExact
Lean.Parser.Tactic.exact
Mathlib.Topology.Closure
{ "line": 265, "column": 68 }
{ "line": 266, "column": 58 }
[ { "pp": "X : Type u\ninst✝ : TopologicalSpace X\ns : Set X\n⊢ (closure s).Nonempty ↔ s.Nonempty", "usedConstants": [ "congrArg", "Ne", "closure_empty_iff._simp_1", "iff_self", "Iff", "Set.Nonempty", "closure", "_private.Mathlib.Topology.Closure.0.closure_nonem...
by simp only [nonempty_iff_ne_empty, Ne, closure_empty_iff]
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Topology.Closure
{ "line": 347, "column": 2 }
{ "line": 347, "column": 85 }
[ { "pp": "case h\nX : Type u\ninst✝ : TopologicalSpace X\ns t : Set X\nh : Codisjoint (interior s) (interior t)\n⊢ Disjoint (closure sᶜ) (closure tᶜ)", "usedConstants": [ "Eq.mpr", "Codisjoint", "CompleteBooleanAlgebra.toCompleteDistribLattice", "congrArg", "Compl.compl", ...
simpa only [closure_compl, disjoint_compl_left_iff, ← codisjoint_iff_compl_le_left]
Lean.Elab.Tactic.Simpa.evalSimpa
Lean.Parser.Tactic.simpa
Mathlib.Topology.NhdsSet
{ "line": 106, "column": 41 }
{ "line": 106, "column": 58 }
[ { "pp": "X : Type u_2\ninst✝ : TopologicalSpace X\ns : Set X\n⊢ 𝓝ˢ s ≤ 𝓟 s ↔ IsOpen[inst✝] s", "usedConstants": [ "Filter.instMembership", "Eq.mpr", "Filter.le_principal_iff", "congrArg", "PartialOrder.toPreorder", "Preorder.toLE", "Membership.mem", "id", ...
le_principal_iff,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Topology.Order
{ "line": 486, "column": 21 }
{ "line": 486, "column": 33 }
[ { "pp": "α : Type u_1\nβ : Type u_2\nf : α → β\ns : Set (TopologicalSpace α)\n⊢ TopologicalSpace.coinduced f (⨆ a, ↑a) = sSup (TopologicalSpace.coinduced f '' s)", "usedConstants": [ "Eq.mpr", "congrArg", "iSup", "Membership.mem", "CompleteLattice.toConditionallyCompleteLattice...
sSup_image',
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Topology.Order
{ "line": 946, "column": 2 }
{ "line": 946, "column": 72 }
[ { "pp": "α : Type u_1\nβ : Type u_2\nt : TopologicalSpace β\nf : α → β\ns : Set α\n⊢ IsClosed[induced f t] s ↔ ∀ (a : α), f a ∈ closure[t] (f '' s) → a ∈ s", "usedConstants": [ "congrArg", "_private.Mathlib.Topology.Order.0.isClosed_induced_iff'._simp_1_1", "Membership.mem", "HasSubs...
simp only [← closure_subset_iff_isClosed, subset_def, closure_induced]
Lean.Elab.Tactic.evalSimp
Lean.Parser.Tactic.simp
Mathlib.Topology.Order
{ "line": 946, "column": 2 }
{ "line": 946, "column": 72 }
[ { "pp": "α : Type u_1\nβ : Type u_2\nt : TopologicalSpace β\nf : α → β\ns : Set α\n⊢ IsClosed[induced f t] s ↔ ∀ (a : α), f a ∈ closure[t] (f '' s) → a ∈ s", "usedConstants": [ "congrArg", "_private.Mathlib.Topology.Order.0.isClosed_induced_iff'._simp_1_1", "Membership.mem", "HasSubs...
simp only [← closure_subset_iff_isClosed, subset_def, closure_induced]
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Topology.Order
{ "line": 946, "column": 2 }
{ "line": 946, "column": 72 }
[ { "pp": "α : Type u_1\nβ : Type u_2\nt : TopologicalSpace β\nf : α → β\ns : Set α\n⊢ IsClosed[induced f t] s ↔ ∀ (a : α), f a ∈ closure[t] (f '' s) → a ∈ s", "usedConstants": [ "congrArg", "_private.Mathlib.Topology.Order.0.isClosed_induced_iff'._simp_1_1", "Membership.mem", "HasSubs...
simp only [← closure_subset_iff_isClosed, subset_def, closure_induced]
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Topology.Maps.Basic
{ "line": 110, "column": 47 }
{ "line": 110, "column": 60 }
[ { "pp": "X : Type u_1\nY : Type u_2\nf : X → Y\ninst✝¹ : TopologicalSpace Y\ninst✝ : TopologicalSpace X\nhf : IsInducing f\nx : X\nl : Filter X\n⊢ (map f (𝓝 x ⊓ l)).NeBot ↔ (𝓝 x ⊓ l).NeBot", "usedConstants": [ "Eq.mpr", "congrArg", "Filter.map", "Filter.NeBot", "nhds", ...
map_neBot_iff
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Topology.Maps.Basic
{ "line": 161, "column": 2 }
{ "line": 161, "column": 43 }
[ { "pp": "X : Type u_1\nY : Type u_2\nf : X → Y\ninst✝¹ : TopologicalSpace Y\ninst✝ : TopologicalSpace X\nhf : IsInducing f\ns : Set X\nhs : IsOpen[inst✝] s\n⊢ ∃ c, IsOpen[inst✝¹] c ∧ f '' s = c ∩ range f", "usedConstants": [ "Topology.IsInducing.isOpen_iff", "Exists", "And", "Set.pre...
obtain ⟨c, hc, rfl⟩ := hf.isOpen_iff.1 hs
_private.Lean.Elab.Tactic.RCases.0.Lean.Elab.Tactic.RCases.evalObtain
Lean.Parser.Tactic.obtain
Mathlib.Topology.Separation.SeparatedNhds
{ "line": 164, "column": 2 }
{ "line": 167, "column": 24 }
[ { "pp": "X : Type u_1\ninst✝ : TopologicalSpace X\ns t : Set X\nhst : SeparatedNhds s t\nhst' : IsOpen[inst✝] (s ∪ t)\n⊢ IsOpen[inst✝] s", "usedConstants": [ "Set.inter_eq_left", "Iff.mpr", "Eq.mpr", "CompleteBooleanAlgebra.toCompleteDistribLattice", "Set.union_empty", "c...
obtain ⟨u, v, hu, hv, hsu, htv, huv⟩ := hst suffices s = (s ∪ t) ∩ u from this ▸ hst'.inter hu rw [union_inter_distrib_right, (huv.symm.mono_left htv).inter_eq, union_empty, inter_eq_left.2 hsu]
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Topology.Separation.SeparatedNhds
{ "line": 164, "column": 2 }
{ "line": 167, "column": 24 }
[ { "pp": "X : Type u_1\ninst✝ : TopologicalSpace X\ns t : Set X\nhst : SeparatedNhds s t\nhst' : IsOpen[inst✝] (s ∪ t)\n⊢ IsOpen[inst✝] s", "usedConstants": [ "Set.inter_eq_left", "Iff.mpr", "Eq.mpr", "CompleteBooleanAlgebra.toCompleteDistribLattice", "Set.union_empty", "c...
obtain ⟨u, v, hu, hv, hsu, htv, huv⟩ := hst suffices s = (s ∪ t) ∩ u from this ▸ hst'.inter hu rw [union_inter_distrib_right, (huv.symm.mono_left htv).inter_eq, union_empty, inter_eq_left.2 hsu]
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Topology.Constructions.SumProd
{ "line": 183, "column": 2 }
{ "line": 183, "column": 68 }
[ { "pp": "X : Type u_5\nY : Type u_6\nZ : Type u_7\nf : X → Y → Z\nta1 ta2 : TopologicalSpace X\ntb1 tb2 : TopologicalSpace Y\ntc1 : TopologicalSpace Z\nh : Continuous[instTopologicalSpaceProd, tc1] fun p ↦ f p.1 p.2\nha : Continuous[ta1 ⊓ ta2, ta1] id\nhb : Continuous[tb1 ⊓ tb2, tb1] id\nh_continuous_id : Conti...
exact @Continuous.comp _ _ _ (id _) (id _) _ _ _ h h_continuous_id
Lean.Elab.Tactic.evalExact
Lean.Parser.Tactic.exact
Mathlib.Topology.Constructions.SumProd
{ "line": 193, "column": 2 }
{ "line": 193, "column": 68 }
[ { "pp": "X : Type u_5\nY : Type u_6\nZ : Type u_7\nf : X → Y → Z\nta1 ta2 : TopologicalSpace X\ntb1 tb2 : TopologicalSpace Y\ntc1 : TopologicalSpace Z\nh : Continuous[instTopologicalSpaceProd, tc1] fun p ↦ f p.1 p.2\nha : Continuous[ta1 ⊓ ta2, ta2] id\nhb : Continuous[tb1 ⊓ tb2, tb2] id\nh_continuous_id : Conti...
exact @Continuous.comp _ _ _ (id _) (id _) _ _ _ h h_continuous_id
Lean.Elab.Tactic.evalExact
Lean.Parser.Tactic.exact
Mathlib.Order.Heyting.Boundary
{ "line": 105, "column": 4 }
{ "line": 105, "column": 66 }
[ { "pp": "case refine_6\nα : Type u_1\ninst✝ : CoheytingAlgebra α\na b : α\n⊢ Codisjoint a (¬(a ⊓ b))", "usedConstants": [ "CoheytingAlgebra.toHNot", "codisjoint_hnot_right", "SemilatticeInf.toPartialOrder", "CoheytingAlgebra.toOrderTop", "SemilatticeInf.toMin", "HNot.hnot...
exact codisjoint_hnot_right.mono_right (hnot_anti inf_le_left)
Lean.Elab.Tactic.evalExact
Lean.Parser.Tactic.exact
Mathlib.Order.Filter.Cofinite
{ "line": 208, "column": 2 }
{ "line": 208, "column": 60 }
[ { "pp": "N : ℕ\nx✝ : True\n⊢ Ici N ∈ cofinite", "usedConstants": [ "Filter.instMembership", "Eq.mpr", "Lattice.toSemilatticeSup", "Set.Ici", "congrArg", "Compl.compl", "PartialOrder.toPreorder", "Set.Finite", "Membership.mem", "DistribLattice.toLat...
simpa only [mem_cofinite, compl_Ici] using finite_lt_nat N
Lean.Elab.Tactic.Simpa.evalSimpa
Lean.Parser.Tactic.simpa
Mathlib.Order.Filter.Cofinite
{ "line": 322, "column": 27 }
{ "line": 322, "column": 44 }
[ { "pp": "case refine_4.refine_2\nα : Type u_2\nf : Filter α\nq : Set α × Filter α\nhq : (fun p ↦ p.2 ≤ cofinite ∧ Disjoint (𝓟 p.1) p.2 ∧ f = 𝓟 p.1 ⊔ p.2) q\nhqk : f.ker = q.1\n⊢ q.2 ≤ 𝓟 f.kerᶜ", "usedConstants": [ "Filter.instMembership", "Eq.mpr", "Filter.le_principal_iff", "cong...
le_principal_iff,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Topology.NhdsWithin
{ "line": 284, "column": 83 }
{ "line": 286, "column": 15 }
[ { "pp": "α : Type u_1\ninst✝ : TopologicalSpace α\na : α\ns : Set α\n⊢ insert a s ∈ 𝓝 a ↔ s ∈ 𝓝[≠] a", "usedConstants": [ "Filter.instMembership", "congrArg", "Compl.compl", "nhdsWithin", "_private.Mathlib.Topology.NhdsWithin.0.insert_mem_nhds_iff._simp_1_4", "setOf", ...
by simp only [nhdsWithin, mem_inf_principal, mem_compl_iff, mem_singleton_iff, or_iff_not_imp_left, insert_def]
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Topology.NhdsWithin
{ "line": 596, "column": 35 }
{ "line": 596, "column": 48 }
[ { "pp": "α : Type u_5\nβ : Type u_6\nt : TopologicalSpace β\nf : α → β\ns u : Set α\nthis : TopologicalSpace α := TopologicalSpace.induced f t\nx✝ : ∃ U, (∃ t_1, IsOpen[t] t_1 ∧ f ⁻¹' t_1 = U) ∧ s ⊆ U ∧ U ⊆ u\nv : Set α\nv' : Set β\nhv' : IsOpen[t] v' ∧ f ⁻¹' v' = v\nhv : s ⊆ v ∧ v ⊆ u\n⊢ f '' v ⊆ v'", "use...
by simp [hv']
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Topology.ContinuousOn
{ "line": 812, "column": 87 }
{ "line": 813, "column": 56 }
[ { "pp": "α : Type u_1\nβ : Type u_2\nγ : Type u_3\ninst✝² : TopologicalSpace α\ninst✝¹ : TopologicalSpace β\ninst✝ : TopologicalSpace γ\nf : α → β\ng : β → γ\nhg : IsInducing g\ns : Set α\nx : α\n⊢ ContinuousWithinAt f s x ↔ ContinuousWithinAt (g ∘ f) s x", "usedConstants": [ "Eq.mpr", "Continuo...
by simp_rw [ContinuousWithinAt, hg.tendsto_nhds_iff]; rfl
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Algebra.Group.Submonoid.Units
{ "line": 321, "column": 86 }
{ "line": 321, "column": 94 }
[ { "pp": "G : Type u_2\ninst✝ : Group G\nH : Subgroup G\nx : Gˣ\n⊢ ↑x ∈ H ∧ ↑x ∈ H ↔ ↑x ∈ H", "usedConstants": [ "Units.val", "congrArg", "and_self", "Group.toDivisionMonoid", "Membership.mem", "DivInvMonoid.toMonoid", "Subgroup", "DivisionMonoid.toDivInvMonoid...
and_self
Mathlib.Tactic._aux_Mathlib_Tactic_SimpRw___elabRules_Mathlib_Tactic_tacticSimp_rw____1
null
Mathlib.Algebra.Order.Group.MinMax
{ "line": 40, "column": 25 }
{ "line": 40, "column": 33 }
[ { "pp": "case inl\nG₀ : Type u_1\ninst✝¹ : Inv G₀\ninst✝ : LinearOrder G₀\nx y : G₀\nh✝ : x ≤ y\n⊢ min x⁻¹ y⁻¹ ≤ (max x y)⁻¹", "usedConstants": [ "Lattice.toSemilatticeSup", "congrArg", "PartialOrder.toPreorder", "Preorder.toLE", "SemilatticeInf.toPartialOrder", "Semilatt...
simp_all
Lean.Elab.Tactic.evalSimpAll
Lean.Parser.Tactic.simpAll
Mathlib.Algebra.Order.Group.MinMax
{ "line": 40, "column": 25 }
{ "line": 40, "column": 33 }
[ { "pp": "case inr\nG₀ : Type u_1\ninst✝¹ : Inv G₀\ninst✝ : LinearOrder G₀\nx y : G₀\nh✝ : y ≤ x\n⊢ min x⁻¹ y⁻¹ ≤ (max x y)⁻¹", "usedConstants": [ "Lattice.toSemilatticeSup", "congrArg", "PartialOrder.toPreorder", "Preorder.toLE", "SemilatticeInf.toPartialOrder", "Semilatt...
simp_all
Lean.Elab.Tactic.evalSimpAll
Lean.Parser.Tactic.simpAll
Mathlib.Topology.Constructions
{ "line": 573, "column": 4 }
{ "line": 573, "column": 30 }
[ { "pp": "X : Type u\nY : Type v\ninst✝¹ : TopologicalSpace X\ninst✝ : TopologicalSpace Y\nf : X → Y\nhf : IsOpenEmbedding f\ns : Set X\nt : Set Y\nH : MapsTo f s t\nhs : IsOpen[inst✝¹] s\n⊢ IsOpen[instTopologicalSpaceSubtype] (range (MapsTo.restrict f s t H))", "usedConstants": [ "Eq.mpr", "cong...
rw [MapsTo.range_restrict]
Lean.Parser.Tactic._aux_Init_Tactics___macroRules_Lean_Parser_Tactic_rwSeq_1
Lean.Parser.Tactic.rwSeq
Mathlib.Topology.Constructions
{ "line": 572, "column": 31 }
{ "line": 574, "column": 56 }
[ { "pp": "X : Type u\nY : Type v\ninst✝¹ : TopologicalSpace X\ninst✝ : TopologicalSpace Y\nf : X → Y\nhf : IsOpenEmbedding f\ns : Set X\nt : Set Y\nH : MapsTo f s t\nhs : IsOpen[inst✝¹] s\n⊢ IsOpen[instTopologicalSpaceSubtype] (range (MapsTo.restrict f s t H))", "usedConstants": [ "Eq.mpr", "Topo...
by rw [MapsTo.range_restrict] exact continuous_subtype_val.1 _ (hf.isOpenMap _ hs)
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Order.Filter.NAry
{ "line": 232, "column": 2 }
{ "line": 232, "column": 59 }
[ { "pp": "case refine_1\nα : Type u_1\nβ : Type u_3\nβ' : Type u_4\nγ : Type u_5\nγ' : Type u_6\nδ : Type u_7\nε : Type u_9\nf : Filter α\ng : Filter β\nh : Filter γ\nm : α → δ → ε\nn : β → γ → δ\nm₁ : α → β → β'\nm₂ : α → γ → γ'\nn' : β' → γ' → ε\nh_distrib : ∀ (a : α) (b : β) (c : γ), m a (n b c) = n' (m₁ a b)...
· exact (image2_subset_right inter_subset_left).trans ht₁
Lean.Elab.Tactic.evalTacticCDot
Lean.cdot
Mathlib.Topology.Constructions
{ "line": 1050, "column": 11 }
{ "line": 1050, "column": 28 }
[ { "pp": "ι : Type u_5\nA : ι → Type u_6\nT : (i : ι) → TopologicalSpace (A i)\ns : Set ((a : ι) → A a)\n⊢ (∀ x ∈ s, 𝓝 x ≤ 𝓟 s) ↔ ∀ f ∈ s, ∃ I u, (∀ a ∈ I, IsOpen[T a] (u a) ∧ f a ∈ u a) ∧ (↑I).pi u ⊆ s", "usedConstants": [ "Filter.instMembership", "Eq.mpr", "Pi.topologicalSpace", "...
le_principal_iff,
Mathlib.Tactic._aux_Mathlib_Tactic_SimpRw___elabRules_Mathlib_Tactic_tacticSimp_rw____1
null
Mathlib.Topology.Constructions
{ "line": 1077, "column": 11 }
{ "line": 1077, "column": 28 }
[ { "pp": "case intro\nι : Type u_5\nA : ι → Type u_6\nT : (i : ι) → TopologicalSpace (A i)\ninst✝ : Finite ι\ns : Set ((a : ι) → A a)\nval✝ : Fintype ι\n⊢ (∀ x ∈ s, 𝓝 x ≤ 𝓟 s) ↔ ∀ f ∈ s, ∃ u, (∀ (a : ι), IsOpen[T a] (u a) ∧ f a ∈ u a) ∧ univ.pi u ⊆ s", "usedConstants": [ "Filter.instMembership", ...
le_principal_iff,
Mathlib.Tactic._aux_Mathlib_Tactic_SimpRw___elabRules_Mathlib_Tactic_tacticSimp_rw____1
null
Mathlib.Order.Filter.Ultrafilter.Defs
{ "line": 385, "column": 4 }
{ "line": 389, "column": 53 }
[]
Filter.map m (of f) ≤ Filter.map m f := map_mono (of_le _) _ ≤ (Filter.map m <| Filter.comap m g) ⊓ Filter.map m (𝓟 s) := map_inf_le _ = (Filter.map m <| Filter.comap m g) ⊓ (𝓟 <| m '' s) := by rw [map_principal] _ ≤ ↑g ⊓ (𝓟 <| m '' s) := inf_le_inf_right _ map_comap_le _ = ↑g := inf_of_le_left (le_p...
Lean.Elab.Tactic._aux_Mathlib_Tactic_Widget_Calc___elabRules_Lean_calcTactic_1
Lean.calcSteps
Mathlib.Order.Filter.AtTopBot.CountablyGenerated
{ "line": 154, "column": 27 }
{ "line": 154, "column": 40 }
[ { "pp": "α : Type u_1\nι : Type u_3\ng : Filter ι\ninst✝¹ : g.IsCountablyGenerated\nu : ι → α\nf : Filter α\ninst✝ : f.IsCountablyGenerated\nhx : (map u (comap u f ⊓ g)).NeBot\n⊢ ∃ θ, Tendsto θ atTop g ∧ Tendsto (u ∘ θ) atTop f", "usedConstants": [ "congrArg", "Filter.map", "Filter.NeBot",...
map_neBot_iff
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Algebra.Order.Group.Pointwise.Interval
{ "line": 82, "column": 2 }
{ "line": 82, "column": 61 }
[ { "pp": "α : Type u_1\ninst✝³ : Mul α\ninst✝² : PartialOrder α\ninst✝¹ : MulLeftStrictMono α\ninst✝ : MulRightStrictMono α\na b c d : α\nthis✝ : MulLeftMono α\nthis : MulRightMono α\ny : α\nhya : a ≤ y\nhyb : y < b\nz : α\nhzc : c ≤ z\nhzd : z ≤ d\n⊢ (fun x1 x2 ↦ x1 * x2) y z ∈ Ico (a * c) (b * d)", "usedCo...
exact ⟨mul_le_mul' hya hzc, mul_lt_mul_of_lt_of_le hyb hzd⟩
Lean.Elab.Tactic.evalExact
Lean.Parser.Tactic.exact
Mathlib.Algebra.Order.Group.Pointwise.Interval
{ "line": 96, "column": 2 }
{ "line": 96, "column": 72 }
[ { "pp": "α : Type u_1\ninst✝³ : Mul α\ninst✝² : PartialOrder α\ninst✝¹ : MulLeftStrictMono α\ninst✝ : MulRightStrictMono α\na b c d : α\nthis✝ : MulLeftMono α\nthis : MulRightMono α\ny : α\nhya : a ≤ y\nhyb : y < b\nz : α\nhzc : c < z\nhzd : z ≤ d\n⊢ (fun x1 x2 ↦ x1 * x2) y z ∈ Ioo (a * c) (b * d)", "usedCo...
exact ⟨mul_lt_mul_of_le_of_lt hya hzc, mul_lt_mul_of_lt_of_le hyb hzd⟩
Lean.Elab.Tactic.evalExact
Lean.Parser.Tactic.exact
Mathlib.Algebra.Order.Group.Pointwise.Interval
{ "line": 574, "column": 2 }
{ "line": 577, "column": 40 }
[ { "pp": "G₀ : Type u_2\ninst✝² : GroupWithZero G₀\ninst✝¹ : PartialOrder G₀\ninst✝ : MulPosReflectLT G₀\na b c : G₀\nhab : a ≤ b\nhc : 0 ≤ c\n⊢ (fun x ↦ x * c) '' Icc a b = Icc (a * c) (b * c)", "usedConstants": [ "Iff.mpr", "GroupWithZero.toMonoidWithZero", "Set.Icc_self", "Preorder...
cases eq_or_lt_of_le hc · subst c simp [(nonempty_Icc.2 hab).image_const] exact image_mul_right_Icc' a b ‹0 < c›
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Algebra.Order.Group.Pointwise.Interval
{ "line": 574, "column": 2 }
{ "line": 577, "column": 40 }
[ { "pp": "G₀ : Type u_2\ninst✝² : GroupWithZero G₀\ninst✝¹ : PartialOrder G₀\ninst✝ : MulPosReflectLT G₀\na b c : G₀\nhab : a ≤ b\nhc : 0 ≤ c\n⊢ (fun x ↦ x * c) '' Icc a b = Icc (a * c) (b * c)", "usedConstants": [ "Iff.mpr", "GroupWithZero.toMonoidWithZero", "Set.Icc_self", "Preorder...
cases eq_or_lt_of_le hc · subst c simp [(nonempty_Icc.2 hab).image_const] exact image_mul_right_Icc' a b ‹0 < c›
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Topology.Ultrafilter
{ "line": 42, "column": 2 }
{ "line": 42, "column": 78 }
[ { "pp": "X : Type u\nx : X\ns : Set X\ninst✝ : TopologicalSpace X\n⊢ x ∈ closure[inst✝] s ↔ ∃ u, s ∈ u ∧ ↑u ≤ 𝓝 x", "usedConstants": [ "Filter.instMembership", "closure_eq_cluster_pts", "congrArg", "Filter.NeBot", "Filter.instCompleteLatticeFilter", "PartialOrder.toPreor...
simp [closure_eq_cluster_pts, ClusterPt, ← exists_ultrafilter_iff, and_comm]
Lean.Elab.Tactic.evalSimp
Lean.Parser.Tactic.simp
Mathlib.Topology.Ultrafilter
{ "line": 42, "column": 2 }
{ "line": 42, "column": 78 }
[ { "pp": "X : Type u\nx : X\ns : Set X\ninst✝ : TopologicalSpace X\n⊢ x ∈ closure[inst✝] s ↔ ∃ u, s ∈ u ∧ ↑u ≤ 𝓝 x", "usedConstants": [ "Filter.instMembership", "closure_eq_cluster_pts", "congrArg", "Filter.NeBot", "Filter.instCompleteLatticeFilter", "PartialOrder.toPreor...
simp [closure_eq_cluster_pts, ClusterPt, ← exists_ultrafilter_iff, and_comm]
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Topology.Ultrafilter
{ "line": 42, "column": 2 }
{ "line": 42, "column": 78 }
[ { "pp": "X : Type u\nx : X\ns : Set X\ninst✝ : TopologicalSpace X\n⊢ x ∈ closure[inst✝] s ↔ ∃ u, s ∈ u ∧ ↑u ≤ 𝓝 x", "usedConstants": [ "Filter.instMembership", "closure_eq_cluster_pts", "congrArg", "Filter.NeBot", "Filter.instCompleteLatticeFilter", "PartialOrder.toPreor...
simp [closure_eq_cluster_pts, ClusterPt, ← exists_ultrafilter_iff, and_comm]
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Topology.Compactness.SigmaCompact
{ "line": 256, "column": 6 }
{ "line": 256, "column": 65 }
[ { "pp": "case inr.refine_2\nX✝ : Type u_1\nY : Type u_2\nι : Type u_3\ninst✝⁵ : TopologicalSpace X✝\ninst✝⁴ : TopologicalSpace Y\ns t : Set X✝\ninst✝³ : SigmaCompactSpace X✝\ninst✝² : Countable ι\nX : ι → Type u_4\ninst✝¹ : (i : ι) → TopologicalSpace (X i)\ninst✝ : ∀ (i : ι), SigmaCompactSpace (X i)\nh✝ : Nonem...
refine ⟨max k n, k, le_max_left _ _, mem_image_of_mem _ ?_⟩
Lean.Elab.Tactic.evalRefine
Lean.Parser.Tactic.refine
Mathlib.Topology.Bases
{ "line": 589, "column": 2 }
{ "line": 589, "column": 19 }
[ { "pp": "β : Type u_1\nι : Type u_2\nt : ι → TopologicalSpace β\nT : ι → Set (Set β)\nh_basis : ∀ (i : ι), IsTopologicalBasis (T i)\n⊢ IsTopologicalBasis {S | ∃ U F, (∀ i ∈ F, U i ∈ T i) ∧ S = ⋂ i ∈ F, U i}", "usedConstants": [ "iInf", "CompleteLattice.toConditionallyCompleteLattice", "Top...
let _ := ⨅ i, t i
Lean.Parser.Tactic._aux_Init_Tactics___macroRules_Lean_Parser_Tactic_tacticLet___1
Lean.Parser.Tactic.tacticLet__
Mathlib.Topology.Bases
{ "line": 590, "column": 2 }
{ "line": 590, "column": 51 }
[ { "pp": "β : Type u_1\nι : Type u_2\nt : ι → TopologicalSpace β\nT : ι → Set (Set β)\nh_basis : ∀ (i : ι), IsTopologicalBasis (T i)\nx✝ : TopologicalSpace β := ⨅ i, t i\n⊢ IsTopologicalBasis {S | ∃ U F, (∀ i ∈ F, U i ∈ T i) ∧ S = ⋂ i ∈ F, U i}", "usedConstants": [ "iInf", "Set.iInter", "Fi...
refine isTopologicalBasis_of_isOpen_of_nhds ?_ ?_
Lean.Elab.Tactic.evalRefine
Lean.Parser.Tactic.refine
Mathlib.Topology.Bases
{ "line": 801, "column": 26 }
{ "line": 801, "column": 34 }
[ { "pp": "α : Type u\nt✝ : TopologicalSpace α\ninst✝ : SecondCountableTopology α\nt : Set (Set α)\nht : t.Countable ∧ ∅ ∉ t ∧ IsTopologicalBasis t\nhn : t = ∅\n⊢ IsTopologicalBasis (range fun n ↦ ∅)", "usedConstants": [ "False", "Set.mem_empty_iff_false._simp_1", "congrArg", "instInha...
simp_all
Lean.Elab.Tactic.evalSimpAll
Lean.Parser.Tactic.simpAll
Mathlib.Topology.Bases
{ "line": 801, "column": 26 }
{ "line": 801, "column": 34 }
[ { "pp": "α : Type u\nt✝ : TopologicalSpace α\ninst✝ : SecondCountableTopology α\nt : Set (Set α)\nht : t.Countable ∧ ∅ ∉ t ∧ IsTopologicalBasis t\nhn : t = ∅\n⊢ IsTopologicalBasis (range fun n ↦ ∅)", "usedConstants": [ "False", "Set.mem_empty_iff_false._simp_1", "congrArg", "instInha...
simp_all
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Topology.Bases
{ "line": 801, "column": 26 }
{ "line": 801, "column": 34 }
[ { "pp": "α : Type u\nt✝ : TopologicalSpace α\ninst✝ : SecondCountableTopology α\nt : Set (Set α)\nht : t.Countable ∧ ∅ ∉ t ∧ IsTopologicalBasis t\nhn : t = ∅\n⊢ IsTopologicalBasis (range fun n ↦ ∅)", "usedConstants": [ "False", "Set.mem_empty_iff_false._simp_1", "congrArg", "instInha...
simp_all
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Order.UpperLower.Fibration
{ "line": 24, "column": 2 }
{ "line": 24, "column": 83 }
[ { "pp": "α : Type u_1\nβ : Type u_2\nf : α → β\ninst✝¹ : LE α\ninst✝ : LE β\nhf : Fibration (fun x1 x2 ↦ x1 ≤ x2) (fun x1 x2 ↦ x1 ≤ x2) f\ns : Set α\nhs : IsLowerSet s\n⊢ IsLowerSet (f '' s)", "usedConstants": [ "Membership.mem", "Exists", "LE.le", "And.casesOn", "And", "...
rintro _ y' e ⟨x, hx, rfl⟩; obtain ⟨y, e', rfl⟩ := hf e; exact ⟨_, hs e' hx, rfl⟩
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Order.UpperLower.Fibration
{ "line": 24, "column": 2 }
{ "line": 24, "column": 83 }
[ { "pp": "α : Type u_1\nβ : Type u_2\nf : α → β\ninst✝¹ : LE α\ninst✝ : LE β\nhf : Fibration (fun x1 x2 ↦ x1 ≤ x2) (fun x1 x2 ↦ x1 ≤ x2) f\ns : Set α\nhs : IsLowerSet s\n⊢ IsLowerSet (f '' s)", "usedConstants": [ "Membership.mem", "Exists", "LE.le", "And.casesOn", "And", "...
rintro _ y' e ⟨x, hx, rfl⟩; obtain ⟨y, e', rfl⟩ := hf e; exact ⟨_, hs e' hx, rfl⟩
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Topology.Compactness.Compact
{ "line": 615, "column": 2 }
{ "line": 615, "column": 29 }
[ { "pp": "X : Type u\nY : Type v\ninst✝¹ : TopologicalSpace X\ninst✝ : TopologicalSpace Y\nf : X → Y\ny : Y\nhf : Tendsto f (cocompact X) (𝓝 y)\nhfc : Continuous[inst✝¹, inst✝] f\nl : Filter Y\nhne : l.NeBot\nhle : l ≤ 𝓟 (insert y (range f))\n⊢ ∃ x ∈ insert y (range f), ClusterPt x l", "usedConstants": [ ...
by_cases hy : ClusterPt y l
«_aux_Init_ByCases___macroRules_tacticBy_cases_:__2»
«tacticBy_cases_:_»
Mathlib.Topology.GDelta.Basic
{ "line": 94, "column": 4 }
{ "line": 94, "column": 51 }
[ { "pp": "case refine_1\nX : Type u_1\ninst✝ : TopologicalSpace X\nT : Set (Set X)\nhT : ∀ t ∈ T, IsOpen[inst✝] t\nT_count : T.Countable\n⊢ ∃ f, (∀ (n : ℕ), IsOpen[inst✝] (f n)) ∧ ⋂₀ T = ⋂ n, f n", "usedConstants": [ "Set.eq_empty_or_nonempty", "Set" ] } ]
rcases Set.eq_empty_or_nonempty T with rfl | hT
_private.Lean.Elab.Tactic.RCases.0.Lean.Elab.Tactic.RCases.evalRCases
Lean.Parser.Tactic.rcases
Mathlib.Topology.GDelta.Basic
{ "line": 97, "column": 19 }
{ "line": 97, "column": 27 }
[ { "pp": "X : Type u_1\ninst✝ : TopologicalSpace X\nT : Set (Set X)\nhT✝ : ∀ t ∈ T, IsOpen[inst✝] t\nT_count : T.Countable\nhT : T.Nonempty\nf : ℕ → Set X\nhf : T = range f\n⊢ ∀ (n : ℕ), IsOpen[inst✝] (f n)", "usedConstants": [ "congrArg", "Membership.mem", "Exists", "Eq.mp", "i...
simp_all
Lean.Elab.Tactic.evalSimpAll
Lean.Parser.Tactic.simpAll
Mathlib.Topology.GDelta.Basic
{ "line": 97, "column": 19 }
{ "line": 97, "column": 27 }
[ { "pp": "X : Type u_1\ninst✝ : TopologicalSpace X\nT : Set (Set X)\nhT✝ : ∀ t ∈ T, IsOpen[inst✝] t\nT_count : T.Countable\nhT : T.Nonempty\nf : ℕ → Set X\nhf : T = range f\n⊢ ∀ (n : ℕ), IsOpen[inst✝] (f n)", "usedConstants": [ "congrArg", "Membership.mem", "Exists", "Eq.mp", "i...
simp_all
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Topology.GDelta.Basic
{ "line": 97, "column": 19 }
{ "line": 97, "column": 27 }
[ { "pp": "X : Type u_1\ninst✝ : TopologicalSpace X\nT : Set (Set X)\nhT✝ : ∀ t ∈ T, IsOpen[inst✝] t\nT_count : T.Countable\nhT : T.Nonempty\nf : ℕ → Set X\nhf : T = range f\n⊢ ∀ (n : ℕ), IsOpen[inst✝] (f n)", "usedConstants": [ "congrArg", "Membership.mem", "Exists", "Eq.mp", "i...
simp_all
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Topology.Bases
{ "line": 1147, "column": 2 }
{ "line": 1148, "column": 45 }
[ { "pp": "α : Type u_1\nβ : Type u_2\ninst✝² : TopologicalSpace α\nf : α → β\ninst✝¹ : TopologicalSpace β\ninst✝ : SecondCountableTopology β\nhf : IsInducing f\n⊢ SecondCountableTopology α", "usedConstants": [ "Eq.mpr", "congrArg", "SecondCountableTopology", "id", "TopologicalSp...
rw [hf.1] exact secondCountableTopology_induced α β f
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Topology.Bases
{ "line": 1147, "column": 2 }
{ "line": 1148, "column": 45 }
[ { "pp": "α : Type u_1\nβ : Type u_2\ninst✝² : TopologicalSpace α\nf : α → β\ninst✝¹ : TopologicalSpace β\ninst✝ : SecondCountableTopology β\nhf : IsInducing f\n⊢ SecondCountableTopology α", "usedConstants": [ "Eq.mpr", "congrArg", "SecondCountableTopology", "id", "TopologicalSp...
rw [hf.1] exact secondCountableTopology_induced α β f
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Topology.GDelta.Basic
{ "line": 277, "column": 2 }
{ "line": 277, "column": 23 }
[ { "pp": "X : Type u_1\ninst✝ : TopologicalSpace X\ns t : Set X\nhs : IsMeagre s\nht : IsMeagre t\n⊢ sᶜ ∩ tᶜ ∈ residual X", "usedConstants": [ "Compl.compl", "Filter.inter_mem", "residual", "Set.instCompl", "Set" ] } ]
exact inter_mem hs ht
Lean.Elab.Tactic.evalExact
Lean.Parser.Tactic.exact
Mathlib.Topology.Baire.Lemmas
{ "line": 55, "column": 4 }
{ "line": 55, "column": 69 }
[ { "pp": "case insert\nX : Type u_1\ninst✝ : TopologicalSpace X\ns : Set (Set X)\na✝ : Set X\ns✝ : Set (Set X)\nha : a✝ ∉ s✝\nhsf : s✝.Finite\nih : (∀ t ∈ s✝, IsOpen[inst✝] t) → (∀ t ∈ s✝, Dense t) → Dense (⋂₀ s✝)\nho : ∀ t ∈ insert a✝ s✝, IsOpen[inst✝] t\nhd : Dense a✝ ∧ ∀ x ∈ s✝, Dense x\n⊢ Dense (⋂₀ s✝)", ...
exact ih ((fun y hy => ho y (Or.inr hy))) (fun y hy => hd.2 y hy)
Lean.Elab.Tactic.evalExact
Lean.Parser.Tactic.exact
Mathlib.Topology.Baire.Lemmas
{ "line": 77, "column": 57 }
{ "line": 77, "column": 65 }
[ { "pp": "case h\nX : Type u_1\ninst✝¹ : TopologicalSpace X\ninst✝ : BaireSpace X\ns : Set X\nhG : IsGδ s\nhd : Dense s\nf : ℕ → Set ↑s\nhof : ∀ (n : ℕ), IsOpen[instTopologicalSpaceSubtype] (f n)\nhdf : ∀ (n : ℕ), Dense (f n)\nV : ℕ → Set X\nhV : (∀ (n : ℕ), IsOpen[inst✝¹] (V n)) ∧ s = ⋂ n, V n\ng : ℕ → Set X\nh...
simp_all
Lean.Elab.Tactic.evalSimpAll
Lean.Parser.Tactic.simpAll
Mathlib.Topology.Compactness.Compact
{ "line": 1114, "column": 4 }
{ "line": 1114, "column": 12 }
[ { "pp": "case right.h\nι : Type u_1\nX : ι → Type u_2\ninst✝ : (i : ι) → TopologicalSpace (X i)\nu : Set ((i : ι) × X i)\nhu : IsCompact u\ns : Finset ι\nhs : u ⊆ ⋃ i ∈ s, Sigma.mk i '' Sigma.mk i ⁻¹' univ\nx : (i : ι) × X i\nhx : ⟨x.fst, x.snd⟩ ∈ u\ni : ι\nhi : ⟨x.fst, x.snd⟩ ∈ ⋃ (_ : i ∈ s), Sigma.mk i '' Sig...
simp_all
Lean.Elab.Tactic.evalSimpAll
Lean.Parser.Tactic.simpAll
Mathlib.Topology.Baire.Lemmas
{ "line": 188, "column": 2 }
{ "line": 188, "column": 26 }
[ { "pp": "X : Type u_1\ninst✝¹ : TopologicalSpace X\ninst✝ : BaireSpace X\ns t : Set X\nhs : IsGδ s\nht : IsGδ t\nhsc : Dense s\nhtc : Dense t\n⊢ Dense (⋂ b, bif b then s else t)", "usedConstants": [ "cond", "dense_iInter_of_Gδ", "Bool.countable", "Bool", "Set" ] } ]
apply dense_iInter_of_Gδ
Lean.Elab.Tactic.evalApply
Lean.Parser.Tactic.apply
Mathlib.Topology.Compactness.Compact
{ "line": 1212, "column": 8 }
{ "line": 1212, "column": 40 }
[ { "pp": "case pos\nX : Type u\ninst✝¹ : TopologicalSpace X\ninst✝ : CompactSpace X\nS : Set X\nhS : IsClosed[inst✝¹] S\nhne : S.Nonempty\nopens : Set (Set X) := {U | Sᶜ ⊆ U ∧ IsOpen[inst✝¹] U ∧ Uᶜ.Nonempty}\nc : Set (Set X)\nhc : c ⊆ opens\nhz : IsChain (fun x1 x2 ↦ x1 ⊆ x2) c\nU₀ : Set X\nhU₀ : U₀ ∈ c\nthis : ...
obtain ⟨U₀compl, -, -⟩ := hc hU₀
_private.Lean.Elab.Tactic.RCases.0.Lean.Elab.Tactic.RCases.evalObtain
Lean.Parser.Tactic.obtain
Mathlib.Topology.Piecewise
{ "line": 57, "column": 8 }
{ "line": 58, "column": 81 }
[ { "pp": "case neg.inr.hs\nα : Type u_1\nβ : Type u_2\ninst✝² : TopologicalSpace α\ninst✝¹ : TopologicalSpace β\ns : Set α\np : α → Prop\nf g : α → β\ninst✝ : (a : α) → Decidable (p a)\nhpf : ∀ a ∈ s ∩ frontier {a | p a}, Tendsto f (𝓝[s ∩ {a | p a}] a) (𝓝 (if p a then f a else g a))\nhpg : ∀ a ∈ s ∩ frontier {...
have : x ∉ closure { a | p a } := fun h => hx' ⟨h, fun h' : x ∈ interior { a | p a } => hx.2 (interior_subset h')⟩
Lean.Parser.Tactic._aux_Init_Tactics___macroRules_Lean_Parser_Tactic_tacticHave___1
Lean.Parser.Tactic.tacticHave__
Mathlib.Topology.Inseparable
{ "line": 397, "column": 2 }
{ "line": 397, "column": 86 }
[ { "pp": "X : Type u_1\nY : Type u_2\nZ : Type u_3\ninst✝² : TopologicalSpace X\ninst✝¹ : TopologicalSpace Y\ninst✝ : TopologicalSpace Z\nf : X → Y\ng : Y → Z\nhf : SpecializingMap f\nhg : SpecializingMap g\n⊢ SpecializingMap (g ∘ f)", "usedConstants": [ "Eq.mpr", "StableUnderSpecialization", ...
simp only [specializingMap_iff_stableUnderSpecialization_image, Set.image_comp] at *
Lean.Elab.Tactic.evalSimp
Lean.Parser.Tactic.simp
Mathlib.Topology.Piecewise
{ "line": 105, "column": 52 }
{ "line": 107, "column": 33 }
[ { "pp": "α : Type u_1\nβ : Type u_2\ninst✝² : TopologicalSpace α\ninst✝¹ : TopologicalSpace β\nf g : α → β\np : α → Prop\ninst✝ : (a : α) → Decidable (p a)\nhp : ∀ a ∈ frontier {x | p x}, f a = g a\nhf : ContinuousOn f (closure[inst✝²] {x | p x})\nhg : ContinuousOn g (closure[inst✝²] {x | ¬p x})\n⊢ Continuous[i...
by rw [← continuousOn_univ] apply ContinuousOn.if <;> simpa
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Topology.Irreducible
{ "line": 191, "column": 32 }
{ "line": 191, "column": 40 }
[ { "pp": "X : Type u_1\ninst✝ : TopologicalSpace X\nH : ∀ ⦃U V : Set X⦄, IsOpen[inst✝] U → IsOpen[inst✝] V → U.Nonempty → V.Nonempty → (U ∩ V).Nonempty\nx✝ : Set X\n⊢ ∀ (v : Set X),\n IsOpen[inst✝] x✝ → IsOpen[inst✝] v → (univ ∩ x✝).Nonempty → (univ ∩ v).Nonempty → (univ ∩ (x✝ ∩ v)).Nonempty", "usedConsta...
simp_all
Lean.Elab.Tactic.evalSimpAll
Lean.Parser.Tactic.simpAll
Mathlib.Topology.Irreducible
{ "line": 191, "column": 32 }
{ "line": 191, "column": 40 }
[ { "pp": "X : Type u_1\ninst✝ : TopologicalSpace X\nH : ∀ ⦃U V : Set X⦄, IsOpen[inst✝] U → IsOpen[inst✝] V → U.Nonempty → V.Nonempty → (U ∩ V).Nonempty\nx✝ : Set X\n⊢ ∀ (v : Set X),\n IsOpen[inst✝] x✝ → IsOpen[inst✝] v → (univ ∩ x✝).Nonempty → (univ ∩ v).Nonempty → (univ ∩ (x✝ ∩ v)).Nonempty", "usedConsta...
simp_all
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Topology.Irreducible
{ "line": 191, "column": 32 }
{ "line": 191, "column": 40 }
[ { "pp": "X : Type u_1\ninst✝ : TopologicalSpace X\nH : ∀ ⦃U V : Set X⦄, IsOpen[inst✝] U → IsOpen[inst✝] V → U.Nonempty → V.Nonempty → (U ∩ V).Nonempty\nx✝ : Set X\n⊢ ∀ (v : Set X),\n IsOpen[inst✝] x✝ → IsOpen[inst✝] v → (univ ∩ x✝).Nonempty → (univ ∩ v).Nonempty → (univ ∩ (x✝ ∩ v)).Nonempty", "usedConsta...
simp_all
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Topology.Irreducible
{ "line": 263, "column": 23 }
{ "line": 263, "column": 31 }
[ { "pp": "case inl\nX : Type u_1\nY : Type u_2\ninst✝² : TopologicalSpace X\ninst✝¹ : TopologicalSpace Y\ns t : Set X\ninst✝ : IndiscreteTopology X\nv : Set X\n⊢ v = ∅ ∨ v = univ → ∅.Nonempty → v.Nonempty → (∅ ∩ v).Nonempty", "usedConstants": [ "False", "congrArg", "Set.univ", "Set.em...
simp_all
Lean.Elab.Tactic.evalSimpAll
Lean.Parser.Tactic.simpAll
Mathlib.Topology.Irreducible
{ "line": 263, "column": 23 }
{ "line": 263, "column": 31 }
[ { "pp": "case inr\nX : Type u_1\nY : Type u_2\ninst✝² : TopologicalSpace X\ninst✝¹ : TopologicalSpace Y\ns t : Set X\ninst✝ : IndiscreteTopology X\nu v : Set X\nh✝ : u = univ\n⊢ v = ∅ ∨ v = univ → u.Nonempty → v.Nonempty → (u ∩ v).Nonempty", "usedConstants": [ "congrArg", "Set.univ", "Set....
simp_all
Lean.Elab.Tactic.evalSimpAll
Lean.Parser.Tactic.simpAll
Mathlib.Topology.DiscreteSubset
{ "line": 327, "column": 4 }
{ "line": 327, "column": 12 }
[ { "pp": "case insert\nX : Type u_3\ninst✝¹ : TopologicalSpace X\ninst✝ : T1Space X\ns t✝ : Set X\nh : t✝.Finite\nτ : X\nt : Set X\nhτ : τ ∉ t\nh₁t : t.Finite\nh₂t : tᶜ ∈ codiscreteWithin s\nthis : (insert τ t)ᶜ = {τ}ᶜ ∩ tᶜ\n⊢ (insert τ t)ᶜ ∈ codiscreteWithin s", "usedConstants": [ "Filter.instMembersh...
simp_all
Lean.Elab.Tactic.evalSimpAll
Lean.Parser.Tactic.simpAll
Mathlib.Topology.DiscreteSubset
{ "line": 365, "column": 56 }
{ "line": 366, "column": 75 }
[ { "pp": "X : Type u_1\ninst✝ : TopologicalSpace X\nS : Set X\nU : Set ↑S\n⊢ U ∈ codiscrete ↑S ↔ Subtype.val '' U ∈ codiscreteWithin S", "usedConstants": [ "Filter.instMembership", "congrArg", "Membership.mem", "Set.Elem", "Subtype", "Subtype.range_coe_subtype", "iff...
by simp [← Topology.IsEmbedding.subtypeVal.image_mem_codiscreteWithin_range]
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Topology.Separation.Hausdorff
{ "line": 664, "column": 6 }
{ "line": 664, "column": 14 }
[ { "pp": "X : Type u_1\nY : Type u_2\ninst✝³ : TopologicalSpace X\ninst✝² : TopologicalSpace Y\ninst✝¹ : T2Space Y\nx : X\nf g : X → Y\nhf : ContinuousAt f x\nhg : ContinuousAt g x\ninst✝ : (𝓝[≠] x).NeBot\nhfg : f =ᶠ[𝓝[≠] x] g\nhCon : ¬f x = g x\nh₁ : ∀ᶠ (x : X) in 𝓝[≠] x, f x ≠ g x ∧ f x = g x\nh₂ : ∅ ∉ 𝓝[≠...
simp_all
Lean.Elab.Tactic.evalSimpAll
Lean.Parser.Tactic.simpAll
Mathlib.Topology.Connected.LocallyConnected
{ "line": 53, "column": 4 }
{ "line": 55, "column": 86 }
[ { "pp": "case mpr\nα : Type u\ninst✝ : TopologicalSpace α\nx✝ : α\n⊢ (∀ U ∈ 𝓝 x✝, ∃ V ⊆ U, IsOpen[inst✝] V ∧ x✝ ∈ V ∧ IsConnected V) →\n (𝓝 x✝).HasBasis (fun s ↦ IsOpen[inst✝] s ∧ x✝ ∈ s ∧ IsConnected s) id", "usedConstants": [ "Filter.instMembership", "Iff.mpr", "_private.Mathlib.Top...
exact fun h => ⟨fun U => ⟨fun hU => let ⟨V, hVU, hV⟩ := h U hU ⟨V, hV, hVU⟩, fun ⟨V, ⟨hV, hxV, _⟩, hVU⟩ => mem_nhds_iff.mpr ⟨V, hVU, hV, hxV⟩⟩⟩
Lean.Elab.Tactic.evalExact
Lean.Parser.Tactic.exact
Mathlib.Topology.Connected.LocallyConnected
{ "line": 53, "column": 4 }
{ "line": 55, "column": 86 }
[ { "pp": "case mpr\nα : Type u\ninst✝ : TopologicalSpace α\nx✝ : α\n⊢ (∀ U ∈ 𝓝 x✝, ∃ V ⊆ U, IsOpen[inst✝] V ∧ x✝ ∈ V ∧ IsConnected V) →\n (𝓝 x✝).HasBasis (fun s ↦ IsOpen[inst✝] s ∧ x✝ ∈ s ∧ IsConnected s) id", "usedConstants": [ "Filter.instMembership", "Iff.mpr", "_private.Mathlib.Top...
exact fun h => ⟨fun U => ⟨fun hU => let ⟨V, hVU, hV⟩ := h U hU ⟨V, hV, hVU⟩, fun ⟨V, ⟨hV, hxV, _⟩, hVU⟩ => mem_nhds_iff.mpr ⟨V, hVU, hV, hxV⟩⟩⟩
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Topology.Connected.LocallyConnected
{ "line": 53, "column": 4 }
{ "line": 55, "column": 86 }
[ { "pp": "case mpr\nα : Type u\ninst✝ : TopologicalSpace α\nx✝ : α\n⊢ (∀ U ∈ 𝓝 x✝, ∃ V ⊆ U, IsOpen[inst✝] V ∧ x✝ ∈ V ∧ IsConnected V) →\n (𝓝 x✝).HasBasis (fun s ↦ IsOpen[inst✝] s ∧ x✝ ∈ s ∧ IsConnected s) id", "usedConstants": [ "Filter.instMembership", "Iff.mpr", "_private.Mathlib.Top...
exact fun h => ⟨fun U => ⟨fun hU => let ⟨V, hVU, hV⟩ := h U hU ⟨V, hV, hVU⟩, fun ⟨V, ⟨hV, hxV, _⟩, hVU⟩ => mem_nhds_iff.mpr ⟨V, hVU, hV, hxV⟩⟩⟩
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq