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Mathlib.RingTheory.Polynomial.Content
{ "line": 153, "column": 2 }
{ "line": 154, "column": 12 }
[ { "pp": "case mp\nR : Type u_1\ninst✝¹ : CommRing R\ninst✝ : NormalizedGCDMonoid R\np : R[X]\nh : ∀ x ∈ p.support, p.coeff x = 0\n⊢ p = 0", "usedConstants": [ "False", "eq_false", "Classical.not_not._simp_1", "Polynomial.ext", "congrArg", "CommSemiring.toSemiring", ...
· ext n simp_all
Lean.Elab.Tactic.evalTacticCDot
Lean.cdot
Mathlib.RingTheory.Polynomial.Content
{ "line": 196, "column": 2 }
{ "line": 197, "column": 39 }
[ { "pp": "case mp\nR : Type u_1\ninst✝¹ : CommRing R\ninst✝ : NormalizedGCDMonoid R\np : R[X]\nr : R\n⊢ r ∣ p.content → ∀ (i : ℕ), r ∣ p.coeff i", "usedConstants": [ "Dvd.dvd", "CommRing.toNonUnitalCommRing", "CommSemiring.toSemiring", "semigroupDvd", "SemigroupWithZero.toSemigr...
· intro h i apply h.trans (content_dvd_coeff _)
Lean.Elab.Tactic.evalTacticCDot
Lean.cdot
Mathlib.Algebra.Polynomial.Roots
{ "line": 235, "column": 88 }
{ "line": 236, "column": 24 }
[ { "pp": "R : Type u\ninst✝¹ : CommRing R\ninst✝ : IsDomain R\nL : List R[X]\nhd : R[X]\ntl : List R[X]\nih : 0 ∉ tl → tl.prod.roots = (↑tl).bind roots\nH : ¬0 = hd ∧ 0 ∉ tl\n⊢ hd.roots + tl.prod.roots = (↑(hd :: tl)).bind roots", "usedConstants": [ "Eq.mpr", "MulOne.toOne", "Polynomial.roo...
← Multiset.cons_coe,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Algebra.Polynomial.FieldDivision
{ "line": 222, "column": 34 }
{ "line": 222, "column": 53 }
[ { "pp": "R : Type u\nS : Type v\nk : Type y\nA : Type z\na b : R\nn : ℕ\ninst✝² : CommRing R\ninst✝¹ : NoZeroDivisors R\ninst✝ : NormalizationMonoid R\nu : R[X]ˣ\nw : Rˣ\nh2 : C ↑w = ↑u\n⊢ C ↑w * C ↑(normUnit ↑w) = ↑1", "usedConstants": [ "Units.val", "Eq.mpr", "Polynomial.C", "MulOn...
normUnit_coe_units,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Algebra.Polynomial.Roots
{ "line": 371, "column": 48 }
{ "line": 373, "column": 55 }
[ { "pp": "R : Type u\ninst✝¹ : CommRing R\ninst✝ : IsDomain R\nn : ℕ\nh : 0 < n\na x : R\n⊢ x ∈ nthRootsFinset n a ↔ x ^ n = a", "usedConstants": [ "Multiset.toFinset", "Eq.mpr", "congrArg", "CommSemiring.toSemiring", "Finset", "Iff.rfl", "Classical.propDecidable", ...
by classical rw [nthRootsFinset_def, mem_toFinset, mem_nthRoots h]
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Algebra.Polynomial.Roots
{ "line": 452, "column": 2 }
{ "line": 452, "column": 46 }
[ { "pp": "S : Type v\nT : Type w\ninst✝⁵ : CommRing T\ninst✝⁴ : IsDomain T\ninst✝³ : CommRing S\ninst✝² : IsDomain S\ninst✝¹ : Algebra T S\ninst✝ : Module.IsTorsionFree T S\np : T[X]\na : S\n⊢ a ∈ p.aroots S ↔ p ≠ 0 ∧ (aeval a) p = 0", "usedConstants": [ "Polynomial.mem_aroots'", "Eq.mpr", ...
rw [mem_aroots', Polynomial.map_ne_zero_iff]
Lean.Parser.Tactic._aux_Init_Tactics___macroRules_Lean_Parser_Tactic_rwSeq_1
Lean.Parser.Tactic.rwSeq
Mathlib.RingTheory.Polynomial.UniqueFactorization
{ "line": 144, "column": 8 }
{ "line": 144, "column": 37 }
[ { "pp": "σ : Type v\nD : Type u\ninst✝¹ : CommRing D\ninst✝ : UniqueFactorizationMonoid D\nd : ℕ\ns : Finset σ\na' : MvPolynomial (↥s) D\nha : (rename Subtype.val) a' ≠ 0\nw : Multiset (MvPolynomial (↥s) D)\nh : ∀ b ∈ w, Prime b\nu : (MvPolynomial (↥s) D)ˣ\nhw : w.prod * ↑u = a'\n⊢ (rename Subtype.val) w.prod *...
AlgHom.toRingHom_toMonoidHom,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.RingTheory.Algebraic.Basic
{ "line": 62, "column": 9 }
{ "line": 62, "column": 41 }
[ { "pp": "R : Type u\nA : Type v\ninst✝² : CommRing R\ninst✝¹ : Ring A\ninst✝ : Algebra R A\nr : A\nf : R[X]\nhf : f.natDegree ≠ 0\nhf' : f.leadingCoeff ∈ R⁰\np : R[X]\nh1 : p ≠ 0\nh2 : (aeval ((aeval r) f)) p = 0\nh : (p.comp f).coeff (p.natDegree * f.natDegree) = 0\n⊢ p = 0", "usedConstants": [ "NonU...
coeff_comp_degree_mul_degree hf,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.RingTheory.Algebraic.Basic
{ "line": 409, "column": 30 }
{ "line": 409, "column": 62 }
[ { "pp": "R : Type u_3\nS : Type u_4\nA : Type u_5\ninst✝⁶ : CommRing R\ninst✝⁵ : CommRing S\ninst✝⁴ : Ring A\ninst✝³ : Algebra R S\ninst✝² : Algebra S A\ninst✝¹ : Algebra R A\ninst✝ : IsScalarTower R S A\nhinj : Function.Injective ⇑(algebraMap R S)\nx : A\nA_alg : IsAlgebraic R x\np : R[X]\nhp₁ : p ≠ 0\nhp₂ : (...
degree_map_eq_of_injective hinj,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Data.Real.Basic
{ "line": 362, "column": 4 }
{ "line": 362, "column": 31 }
[ { "pp": "x : ℝ\n⊢ ∀ (a b : ℝ), a ≤ b → ∀ (c : ℝ), a + c ≤ b + c", "usedConstants": [ "Eq.mpr", "Real.partialOrder", "Real", "Preorder.toLT", "_private.Mathlib.Data.Real.Basic.0.Real.instIsOrderedAddMonoid._simp_1", "PartialOrder.toPreorder", "Preorder.toLE", "...
simp only [le_iff_eq_or_lt]
Lean.Elab.Tactic.evalSimp
Lean.Parser.Tactic.simp
Mathlib.Data.Real.Basic
{ "line": 512, "column": 8 }
{ "line": 512, "column": 29 }
[ { "pp": "x : ℝ\nq : ℚ≥0\n⊢ ↑q = ↑q.num / ↑q.den", "usedConstants": [ "Semiring.toNatCast", "Real.instNNRatCast", "Eq.mpr", "Real", "instHDiv", "CauSeq.Completion.instNNRatCast", "abs", "congrArg", "Real.instDivInvMonoid", "IsAbsoluteValue.abs_isAbs...
← ofCauchy_nnratCast,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Algebra.Order.CauSeq.Basic
{ "line": 432, "column": 9 }
{ "line": 432, "column": 29 }
[ { "pp": "α : Type u_1\nβ : Type u_2\ninst✝⁴ : Field α\ninst✝³ : LinearOrder α\ninst✝² : IsStrictOrderedRing α\ninst✝¹ : Ring β\nabv : β → α\ninst✝ : IsAbsoluteValue abv\nf g : CauSeq β abv\nh : f ≈ g\nε : α\nε0 : 0 < ε\nx✝ : ℕ\nH : ∀ j ≥ x✝, abv (↑(f - g) j) < ε / 2 ∧ ∀ k ≥ j, abv (↑f k - ↑f j) < ε / 2\nj : ℕ\n...
sub_add_sub_cancel',
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Data.Real.Archimedean
{ "line": 331, "column": 4 }
{ "line": 331, "column": 78 }
[ { "pp": "case refine_1\nf : CauSeq ℝ abs\ns : Set ℝ := {x | const abs x < f}\nlb : ∃ x, x ∈ s\nub' : ∀ (x : ℝ), f < const abs x → ∀ y ∈ s, y ≤ x\nub : ∃ x, ∀ y ∈ s, y ≤ x\nε : ℝ\nε0 : ε > 0\ni : ℕ\nih : ∀ j ≥ i, ε ≤ ↑(const abs (sSup s) - f) j\nj : ℕ\nij : j ≥ i\n⊢ ε / 2 ≤ ↑(const abs (sSup s - ε / 2) - f) j", ...
rw [sub_apply, const_apply, sub_right_comm, le_sub_iff_add_le, add_halves]
Lean.Parser.Tactic._aux_Init_Tactics___macroRules_Lean_Parser_Tactic_rwSeq_1
Lean.Parser.Tactic.rwSeq
Mathlib.Data.NNReal.Defs
{ "line": 701, "column": 26 }
{ "line": 703, "column": 74 }
[ { "pp": "a b : ℝ≥0\nha : 0 < a\nhb : b < 1\n⊢ ∃ n, b ^ n < a", "usedConstants": [ "Iff.mpr", "Real", "Preorder.toLT", "Real.instArchimedean", "Real.instZero", "congrArg", "NNReal.coe_lt_coe._simp_1", "PartialOrder.toPreorder", "Real.instLT", "Preor...
by simpa only [← coe_pow, NNReal.coe_lt_coe] using exists_pow_lt_of_lt_one (NNReal.coe_pos.2 ha) (NNReal.coe_lt_coe.2 hb)
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Algebra.Order.Group.Pointwise.CompleteLattice
{ "line": 96, "column": 2 }
{ "line": 97, "column": 42 }
[ { "pp": "M : Type u_1\ninst✝³ : CompleteLattice M\ninst✝² : Group M\ninst✝¹ : MulLeftMono M\ninst✝ : MulRightMono M\ns : Set M\n⊢ sSup s⁻¹ = (sInf s)⁻¹", "usedConstants": [ "Eq.mpr", "iInf", "DivInvOneMonoid.toInvOneClass", "congrArg", "iSup", "OrderIso.inv", "Invol...
rw [← image_inv_eq_inv, sSup_image] exact ((OrderIso.inv M).map_sInf _).symm
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Algebra.Order.Group.Pointwise.CompleteLattice
{ "line": 96, "column": 2 }
{ "line": 97, "column": 42 }
[ { "pp": "M : Type u_1\ninst✝³ : CompleteLattice M\ninst✝² : Group M\ninst✝¹ : MulLeftMono M\ninst✝ : MulRightMono M\ns : Set M\n⊢ sSup s⁻¹ = (sInf s)⁻¹", "usedConstants": [ "Eq.mpr", "iInf", "DivInvOneMonoid.toInvOneClass", "congrArg", "iSup", "OrderIso.inv", "Invol...
rw [← image_inv_eq_inv, sSup_image] exact ((OrderIso.inv M).map_sInf _).symm
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Data.Real.Archimedean
{ "line": 407, "column": 40 }
{ "line": 411, "column": 28 }
[ { "pp": "b : ℝ\nhb : 0 < b\n⊢ ∃ n, 0 < n ∧ (↑n)⁻¹ < b", "usedConstants": [ "Real.instIsOrderedRing", "Eq.mpr", "GroupWithZero.toMonoidWithZero", "NonAssocSemiring.toAddCommMonoidWithOne", "Real.partialOrder", "Real", "Preorder.toLT", "NonUnitalCommRing.toNonUn...
by refine (exists_nat_gt b⁻¹).imp fun k hk ↦ ?_ have := (inv_pos_of_pos hb).trans hk refine ⟨Nat.cast_pos.mp this, ?_⟩ rwa [inv_lt_comm₀ this hb]
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Algebra.Order.CauSeq.Basic
{ "line": 806, "column": 2 }
{ "line": 814, "column": 24 }
[ { "pp": "α : Type u_1\ninst✝² : Field α\ninst✝¹ : LinearOrder α\ninst✝ : IsStrictOrderedRing α\na b : CauSeq α abs\nh : b ≤ a\n⊢ a ⊓ b ≈ b", "usedConstants": [ "AddGroup.toSubtractionMonoid", "CauSeq.instLTAbs._proof_1", "Eq.mpr", "CauSeq.instLTAbs", "Preorder.toLT", "Non...
obtain ⟨ε, ε0 : _ < _, i, h⟩ | h := h · intro _ _ refine ⟨i, fun j hj => ?_⟩ dsimp rw [← min_sub_sub_right] rwa [sub_self, min_eq_right, abs_zero] exact ε0.le.trans (h _ hj) · refine Setoid.trans (inf_equiv_inf (Setoid.symm h) (Setoid.refl _)) ?_ rw [CauSeq.inf_idem]
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Algebra.Order.CauSeq.Basic
{ "line": 806, "column": 2 }
{ "line": 814, "column": 24 }
[ { "pp": "α : Type u_1\ninst✝² : Field α\ninst✝¹ : LinearOrder α\ninst✝ : IsStrictOrderedRing α\na b : CauSeq α abs\nh : b ≤ a\n⊢ a ⊓ b ≈ b", "usedConstants": [ "AddGroup.toSubtractionMonoid", "CauSeq.instLTAbs._proof_1", "Eq.mpr", "CauSeq.instLTAbs", "Preorder.toLT", "Non...
obtain ⟨ε, ε0 : _ < _, i, h⟩ | h := h · intro _ _ refine ⟨i, fun j hj => ?_⟩ dsimp rw [← min_sub_sub_right] rwa [sub_self, min_eq_right, abs_zero] exact ε0.le.trans (h _ hj) · refine Setoid.trans (inf_equiv_inf (Setoid.symm h) (Setoid.refl _)) ?_ rw [CauSeq.inf_idem]
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Data.ENNReal.Operations
{ "line": 511, "column": 76 }
{ "line": 511, "column": 90 }
[ { "pp": "x y : ℝ≥0\n⊢ ofNNReal '' uIoo x y = uIoo ↑x ↑y", "usedConstants": [ "ENNReal.ofNNReal", "Lattice.toSemilatticeSup", "congrArg", "PartialOrder.toPreorder", "SemilatticeInf.toPartialOrder", "SemilatticeSup.toMax", "DistribLattice.toLattice", "NNReal", ...
by simp [uIoo]
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Data.ENNReal.Operations
{ "line": 651, "column": 46 }
{ "line": 651, "column": 61 }
[ { "pp": "ι : Sort u_1\na : ℝ≥0∞\ninst✝ : Nonempty ι\nf : ι → ℝ≥0∞\nha : a ≠ ∞\ni : ι\n⊢ a + f i ≤ a + ⨆ i, f i", "usedConstants": [ "le_refl", "ENNReal.instAddCommMonoid", "CommSemiring.toSemiring", "iSup", "CompletelyDistribLattice.toCompleteLattice", "PartialOrder.toPre...
grw [← le_iSup]
Mathlib.Tactic._aux_Mathlib_Tactic_GRewrite_Elab___macroRules_Mathlib_Tactic_grwSeq_1
Mathlib.Tactic.grwSeq
Mathlib.Data.ENNReal.Operations
{ "line": 651, "column": 46 }
{ "line": 651, "column": 61 }
[ { "pp": "ι : Sort u_1\na : ℝ≥0∞\ninst✝ : Nonempty ι\nf : ι → ℝ≥0∞\nha : a ≠ ∞\ni : ι\n⊢ a + f i ≤ a + ⨆ i, f i", "usedConstants": [ "le_refl", "ENNReal.instAddCommMonoid", "CommSemiring.toSemiring", "iSup", "CompletelyDistribLattice.toCompleteLattice", "PartialOrder.toPre...
grw [← le_iSup]
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Data.ENNReal.Operations
{ "line": 651, "column": 46 }
{ "line": 651, "column": 61 }
[ { "pp": "ι : Sort u_1\na : ℝ≥0∞\ninst✝ : Nonempty ι\nf : ι → ℝ≥0∞\nha : a ≠ ∞\ni : ι\n⊢ a + f i ≤ a + ⨆ i, f i", "usedConstants": [ "le_refl", "ENNReal.instAddCommMonoid", "CommSemiring.toSemiring", "iSup", "CompletelyDistribLattice.toCompleteLattice", "PartialOrder.toPre...
grw [← le_iSup]
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Data.Sign.Defs
{ "line": 310, "column": 49 }
{ "line": 315, "column": 43 }
[ { "pp": "α : Type u_1\ninst✝¹ : Zero α\ninst✝ : LinearOrder α\na : α\n⊢ sign a = 0 ↔ a = 0", "usedConstants": [ "SignType.ctorIdx", "False", "Preorder.toLT", "SignType.instOne", "congrArg", "HEq.refl", "False.elim", "PartialOrder.toPreorder", "SignType.i...
by refine ⟨fun h => ?_, fun h => h.symm ▸ sign_zero⟩ rw [sign_apply] at h split_ifs at h with h_1 h_2 cases h exact (le_of_not_gt h_1).eq_of_not_lt h_2
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Data.EReal.Basic
{ "line": 197, "column": 29 }
{ "line": 197, "column": 44 }
[ { "pp": "x : EReal\n⊢ x * 1 = x", "usedConstants": [ "Eq.mpr", "HMul.hMul", "congrArg", "EReal", "id", "EReal.mul_comm", "One.toOfNat1", "OfNat.ofNat", "Eq", "instOneEReal", "EReal.instMul", "instHMul" ] } ]
EReal.mul_comm,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Data.EReal.Basic
{ "line": 199, "column": 30 }
{ "line": 199, "column": 45 }
[ { "pp": "x : EReal\n⊢ x * 0 = 0", "usedConstants": [ "Eq.mpr", "HMul.hMul", "congrArg", "EReal", "id", "instZeroEReal", "EReal.mul_comm", "Zero.toOfNat0", "OfNat.ofNat", "Eq", "EReal.instMul", "instHMul" ] } ]
EReal.mul_comm,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Data.Nat.Cast.Order.Field
{ "line": 36, "column": 29 }
{ "line": 36, "column": 42 }
[ { "pp": "case zero\nα : Type u_1\ninst✝² : Semifield α\ninst✝¹ : LinearOrder α\ninst✝ : IsStrictOrderedRing α\nm : ℕ\n⊢ ↑(m / 0) ≤ 0", "usedConstants": [ "Eq.mpr", "GroupWithZero.toMonoidWithZero", "NonAssocSemiring.toAddCommMonoidWithOne", "instHDiv", "congrArg", "Partia...
Nat.div_zero,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Data.EReal.Basic
{ "line": 676, "column": 39 }
{ "line": 676, "column": 54 }
[ { "pp": "x : ℝ≥0\n⊢ ⊤ * ↑↑x = ↑↑x * ↑∞", "usedConstants": [ "Eq.mpr", "ENNReal.ofNNReal", "HMul.hMul", "congrArg", "EReal", "instTopEReal", "id", "ENNReal.toEReal", "EReal.mul_comm", "ENNReal", "instTopENNReal", "Top.top", "Eq", ...
EReal.mul_comm,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Data.ENNReal.Inv
{ "line": 266, "column": 2 }
{ "line": 267, "column": 43 }
[ { "pp": "c a b : ℝ≥0∞\nhc : c ≠ 0\nhc' : c ≠ ∞\n⊢ a * c / (b * c) = a / b", "usedConstants": [ "Eq.mpr", "MulOne.toOne", "DivInvMonoid.toInv", "instHDiv", "HMul.hMul", "mul_mul_mul_comm", "Monoid.toMulOneClass", "CommSemiring.toNonUnitalCommSemiring", "c...
rw [div_eq_mul_inv, div_eq_mul_inv, ENNReal.mul_inv (Or.inr hc') (Or.inr hc), mul_mul_mul_comm, ENNReal.mul_inv_cancel hc hc', mul_one]
Lean.Parser.Tactic._aux_Init_Tactics___macroRules_Lean_Parser_Tactic_rwSeq_1
Lean.Parser.Tactic.rwSeq
Mathlib.Data.ENNReal.Inv
{ "line": 266, "column": 2 }
{ "line": 267, "column": 43 }
[ { "pp": "c a b : ℝ≥0∞\nhc : c ≠ 0\nhc' : c ≠ ∞\n⊢ a * c / (b * c) = a / b", "usedConstants": [ "Eq.mpr", "MulOne.toOne", "DivInvMonoid.toInv", "instHDiv", "HMul.hMul", "mul_mul_mul_comm", "Monoid.toMulOneClass", "CommSemiring.toNonUnitalCommSemiring", "c...
rw [div_eq_mul_inv, div_eq_mul_inv, ENNReal.mul_inv (Or.inr hc') (Or.inr hc), mul_mul_mul_comm, ENNReal.mul_inv_cancel hc hc', mul_one]
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Data.ENNReal.Inv
{ "line": 266, "column": 2 }
{ "line": 267, "column": 43 }
[ { "pp": "c a b : ℝ≥0∞\nhc : c ≠ 0\nhc' : c ≠ ∞\n⊢ a * c / (b * c) = a / b", "usedConstants": [ "Eq.mpr", "MulOne.toOne", "DivInvMonoid.toInv", "instHDiv", "HMul.hMul", "mul_mul_mul_comm", "Monoid.toMulOneClass", "CommSemiring.toNonUnitalCommSemiring", "c...
rw [div_eq_mul_inv, div_eq_mul_inv, ENNReal.mul_inv (Or.inr hc') (Or.inr hc), mul_mul_mul_comm, ENNReal.mul_inv_cancel hc hc', mul_one]
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Data.ENNReal.Inv
{ "line": 293, "column": 49 }
{ "line": 294, "column": 54 }
[ { "pp": "a b : ℝ≥0∞\n⊢ a < b⁻¹ ↔ b < a⁻¹", "usedConstants": [ "Preorder.toLT", "congrArg", "PartialOrder.toPreorder", "Eq.mp", "Iff", "Inv.inv", "ENNReal.instInvolutiveInv", "inv_inv", "LT.lt", "ENNReal", "ENNReal.instPartialOrder", "EN...
by simpa only [inv_inv] using @ENNReal.inv_lt_inv a⁻¹ b
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Data.ENNReal.Inv
{ "line": 650, "column": 4 }
{ "line": 650, "column": 54 }
[ { "pp": "a b : ℝ≥0∞\nha : a ≠ 0\nhb : b ≠ ∞\nn : ℕ\nhn : b / a < ↑n\n⊢ b < ↑n * a", "usedConstants": [ "Eq.mpr", "Preorder.toLT", "instHDiv", "HMul.hMul", "congrArg", "CommSemiring.toSemiring", "PartialOrder.toPreorder", "instAddCommMonoidWithOneENNReal", ...
rwa [← ENNReal.div_lt_iff (Or.inl ha) (Or.inr hb)]
Lean.Parser.Tactic._aux_Init_Tactics___macroRules_Lean_Parser_Tactic_tacticRwa___1
Lean.Parser.Tactic.tacticRwa__
Mathlib.Data.ENNReal.Inv
{ "line": 650, "column": 4 }
{ "line": 650, "column": 54 }
[ { "pp": "a b : ℝ≥0∞\nha : a ≠ 0\nhb : b ≠ ∞\nn : ℕ\nhn : b / a < ↑n\n⊢ b < ↑n * a", "usedConstants": [ "Eq.mpr", "Preorder.toLT", "instHDiv", "HMul.hMul", "congrArg", "CommSemiring.toSemiring", "PartialOrder.toPreorder", "instAddCommMonoidWithOneENNReal", ...
rwa [← ENNReal.div_lt_iff (Or.inl ha) (Or.inr hb)]
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Data.ENNReal.Inv
{ "line": 650, "column": 4 }
{ "line": 650, "column": 54 }
[ { "pp": "a b : ℝ≥0∞\nha : a ≠ 0\nhb : b ≠ ∞\nn : ℕ\nhn : b / a < ↑n\n⊢ b < ↑n * a", "usedConstants": [ "Eq.mpr", "Preorder.toLT", "instHDiv", "HMul.hMul", "congrArg", "CommSemiring.toSemiring", "PartialOrder.toPreorder", "instAddCommMonoidWithOneENNReal", ...
rwa [← ENNReal.div_lt_iff (Or.inl ha) (Or.inr hb)]
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Data.EReal.Inv
{ "line": 103, "column": 67 }
{ "line": 111, "column": 62 }
[ { "pp": "x y : EReal\n⊢ sign (x * y) = sign x * sign y", "usedConstants": [ "CommMonoidWithZero.toCommMonoid", "Iff.mpr", "Eq.mpr", "GroupWithZero.toMonoidWithZero", "MulOne.toOne", "Real", "SignType.instHasDistribNeg", "Preorder.toLT", "HMul.hMul", ...
by induction x, y using induction₂_symm_neg with | top_zero => simp only [mul_zero, sign_zero] | top_top => rfl | symm h => rwa [mul_comm, EReal.mul_comm] | coe_coe => simp only [← coe_mul, sign_coe, _root_.sign_mul] | top_pos _ h => rw [top_mul_coe_of_pos h, sign_top, one_mul, sign_pos (EReal.coe_pos.2...
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Data.EReal.Inv
{ "line": 119, "column": 6 }
{ "line": 119, "column": 21 }
[ { "pp": "x : EReal\n⊢ ↑x.abs * ↑(sign x) = x", "usedConstants": [ "SignType.cast", "Eq.mpr", "EReal.abs", "HMul.hMul", "congrArg", "PartialOrder.toPreorder", "SignType.instLinearOrder", "EReal.instNeg", "EReal", "SemilatticeInf.toPartialOrder", ...
EReal.mul_comm,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Data.ENNReal.Inv
{ "line": 746, "column": 4 }
{ "line": 746, "column": 71 }
[ { "pp": "x : ℝ≥0∞\nhx : 1 ≤ x\na b : ℕ\nh : Int.ofNat a ≤ Int.negSucc b\n⊢ Int.negSucc b < Int.ofNat a", "usedConstants": [ "PartialOrder.toPreorder", "SemilatticeInf.toPartialOrder", "Int.negSucc_lt_zero", "Int.ofNat", "Int", "instOfNat", "instLatticeInt", "I...
exact lt_of_lt_of_le (Int.negSucc_lt_zero _) (Int.natCast_nonneg _)
Lean.Elab.Tactic.evalExact
Lean.Parser.Tactic.exact
Mathlib.Data.EReal.Operations
{ "line": 577, "column": 6 }
{ "line": 577, "column": 21 }
[ { "pp": "x : ℝ≥0∞\nhx : x ≠ 0\n⊢ ↑x * ⊤ = ⊤", "usedConstants": [ "Eq.mpr", "HMul.hMul", "congrArg", "EReal", "instTopEReal", "id", "ENNReal.toEReal", "EReal.mul_comm", "Top.top", "Eq", "EReal.instMul", "instHMul" ] } ]
EReal.mul_comm,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Data.EReal.Inv
{ "line": 255, "column": 6 }
{ "line": 258, "column": 28 }
[ { "pp": "case coe.inr.inr\na : ℝ\na_pos : 0 < a\n⊢ ↑(sign ↑a) * (↑(↑a).abs)⁻¹ = (↑a)⁻¹", "usedConstants": [ "AddGroup.toSubtractionMonoid", "SignType.cast", "Eq.mpr", "EReal.abs", "MulOne.toOne", "SignType.coe_one", "Real", "Inv", "HMul.hMul", "ERe...
rw [sign_coe, _root_.sign_pos a_pos, SignType.coe_one, one_mul] simp only [abs_def a, coe_ennreal_ofReal, abs_nonneg, max_eq_left] congr exact abs_of_pos a_pos
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Data.EReal.Inv
{ "line": 255, "column": 6 }
{ "line": 258, "column": 28 }
[ { "pp": "case coe.inr.inr\na : ℝ\na_pos : 0 < a\n⊢ ↑(sign ↑a) * (↑(↑a).abs)⁻¹ = (↑a)⁻¹", "usedConstants": [ "AddGroup.toSubtractionMonoid", "SignType.cast", "Eq.mpr", "EReal.abs", "MulOne.toOne", "SignType.coe_one", "Real", "Inv", "HMul.hMul", "ERe...
rw [sign_coe, _root_.sign_pos a_pos, SignType.coe_one, one_mul] simp only [abs_def a, coe_ennreal_ofReal, abs_nonneg, max_eq_left] congr exact abs_of_pos a_pos
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Data.EReal.Operations
{ "line": 746, "column": 53 }
{ "line": 746, "column": 68 }
[ { "pp": "a b : EReal\n⊢ -a = ⊥ ∧ b < 0 ∨ -a < 0 ∧ b = ⊥ ∨ -a = ⊤ ∧ 0 < b ∨ 0 < -a ∧ b = ⊤ ↔\n a = ⊥ ∧ 0 < b ∨ 0 < a ∧ b = ⊥ ∨ a = ⊤ ∧ b < 0 ∨ a < 0 ∧ b = ⊤", "usedConstants": [ "Eq.mpr", "Preorder.toLT", "congrArg", "PartialOrder.toPreorder", "EReal.instNeg", "EReal", ...
neg_eq_bot_iff,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Data.EReal.Operations
{ "line": 775, "column": 6 }
{ "line": 775, "column": 21 }
[ { "pp": "x y : EReal\nhy : 0 ≤ y\n⊢ (x * y).toENNReal = x.toENNReal * y.toENNReal", "usedConstants": [ "Eq.mpr", "HMul.hMul", "congrArg", "CommSemiring.toSemiring", "EReal.toENNReal", "EReal", "id", "ENNReal.instCommSemiring", "Distrib.toMul", "ERe...
EReal.mul_comm,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Order.Filter.Bases.Finite
{ "line": 51, "column": 2 }
{ "line": 51, "column": 94 }
[ { "pp": "α : Type u_1\ns : Set (Set α)\n⊢ generate s = generate (sInter '' {t | t.Finite ∧ t ⊆ s})", "usedConstants": [ "Eq.mpr", "congrArg", "setOf", "Set.Finite", "id", "Filter.IsBasis.filter", "HasSubset.Subset", "Filter.HasBasis.isBasis", "FilterBasi...
rw [← FilterBasis.ofSets_sets, FilterBasis.generate, ← (hasBasis_generate s).filter_eq]; rfl
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Order.Filter.Bases.Finite
{ "line": 51, "column": 2 }
{ "line": 51, "column": 94 }
[ { "pp": "α : Type u_1\ns : Set (Set α)\n⊢ generate s = generate (sInter '' {t | t.Finite ∧ t ⊆ s})", "usedConstants": [ "Eq.mpr", "congrArg", "setOf", "Set.Finite", "id", "Filter.IsBasis.filter", "HasSubset.Subset", "Filter.HasBasis.isBasis", "FilterBasi...
rw [← FilterBasis.ofSets_sets, FilterBasis.generate, ← (hasBasis_generate s).filter_eq]; rfl
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Order.Filter.Finite
{ "line": 305, "column": 2 }
{ "line": 305, "column": 43 }
[ { "pp": "α : Type u\nl : Filter α\nι : Type u_2\ns : Set ι\nhs : s.Finite\nf g : ι → Set α\nhle : ∀ i ∈ s, f i ≤ᶠ[l] g i\nthis : Finite ↑s\n⊢ ⋃ i ∈ s, f i ≤ᶠ[l] ⋃ i ∈ s, g i", "usedConstants": [ "Eq.mpr", "congrArg", "Prop.le", "Membership.mem", "Set.Elem", "id", "S...
rw [biUnion_eq_iUnion, biUnion_eq_iUnion]
Lean.Parser.Tactic._aux_Init_Tactics___macroRules_Lean_Parser_Tactic_rwSeq_1
Lean.Parser.Tactic.rwSeq
Mathlib.Order.Filter.AtTopBot.Prod
{ "line": 84, "column": 2 }
{ "line": 84, "column": 33 }
[ { "pp": "α : Type u_3\nγ : Type u_5\ninst✝¹ : Preorder α\ninst✝ : Preorder γ\nf g : α → γ\nhf : Tendsto f atTop atTop\nhg : Tendsto g atTop atTop\n⊢ Tendsto (Prod.map f g) (atTop ×ˢ atTop) atTop", "usedConstants": [ "Filter.Tendsto.prod_map_prod_atTop", "Filter.atTop" ] } ]
exact hf.prod_map_prod_atTop hg
Lean.Elab.Tactic.evalExact
Lean.Parser.Tactic.exact
Mathlib.Order.Filter.AtTopBot.CountablyGenerated
{ "line": 82, "column": 4 }
{ "line": 84, "column": 15 }
[ { "pp": "case refine_1\nα : Type u_3\ninst✝³ : Preorder α\ninst✝² : Nonempty α\ninst✝¹ : IsDirectedOrder α\ninst✝ : atTop.IsCountablyGenerated\nys : ℕ → α\nh : Tendsto ys atTop atTop\nc : α → α → α\nhleft : ∀ (a b : α), a ≤ c a b\nhright : ∀ (a b : α), b ≤ c a b\nxs : ℕ → α := fun n ↦ List.foldl (fun x n ↦ c x ...
refine monotone_nat_of_le_succ fun n ↦ ?_ rw [hsucc] apply hleft
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Order.Filter.AtTopBot.CountablyGenerated
{ "line": 82, "column": 4 }
{ "line": 84, "column": 15 }
[ { "pp": "case refine_1\nα : Type u_3\ninst✝³ : Preorder α\ninst✝² : Nonempty α\ninst✝¹ : IsDirectedOrder α\ninst✝ : atTop.IsCountablyGenerated\nys : ℕ → α\nh : Tendsto ys atTop atTop\nc : α → α → α\nhleft : ∀ (a b : α), a ≤ c a b\nhright : ∀ (a b : α), b ≤ c a b\nxs : ℕ → α := fun n ↦ List.foldl (fun x n ↦ c x ...
refine monotone_nat_of_le_succ fun n ↦ ?_ rw [hsucc] apply hleft
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Order.Filter.Cofinite
{ "line": 211, "column": 6 }
{ "line": 211, "column": 30 }
[ { "pp": "p : ℕ → Prop\n⊢ (∃ᶠ (n : ℕ) in atTop, p n) ↔ {n | p n}.Infinite", "usedConstants": [ "Eq.mpr", "congrArg", "setOf", "id", "Filter.Frequently", "Filter.atTop", "Iff", "Nat.instPreorder", "Nat", "Filter.cofinite", "Nat.cofinite_eq_atTo...
← Nat.cofinite_eq_atTop,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Order.Filter.Cofinite
{ "line": 218, "column": 37 }
{ "line": 230, "column": 53 }
[ { "pp": "α : Type u_4\nβ : Type u_5\ninst✝ : LinearOrder β\ns : Set α\nhs : s.Nonempty\nf : α → β\nhf : Tendsto f cofinite atTop\n⊢ ∃ a₀ ∈ s, ∀ a ∈ s, f a₀ ≤ f a", "usedConstants": [ "Mathlib.Tactic.Push.not_exists._simp_1", "Mathlib.Tactic.Push.not_and_eq", "Preorder.toLT", "Set.Fin...
by by_cases! all_top : ∃ y ∈ s, ∃ x, f y < x · -- the set of points `{y | f y < x}` is nonempty and finite, so we take `min` over this set rcases all_top with ⟨y, hys, x, hx⟩ have : { y | ¬x ≤ f y }.Finite := Filter.eventually_cofinite.mp (tendsto_atTop.1 hf x) simp only [not_le] at this obtain ⟨a₀,...
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Order.LiminfLimsup
{ "line": 1029, "column": 13 }
{ "line": 1029, "column": 23 }
[ { "pp": "case pos\nα : Type u_1\nι : Type u_4\nι' : Type u_5\ninst✝² : ConditionallyCompleteLinearOrder α\nv : Filter ι\np : ι' → Prop\ns : ι' → Set ι\ninst✝¹ : Countable (Subtype p)\ninst✝ : Nonempty (Subtype p)\nhv : v.HasBasis p s\nf : ι → α\nH : ¬∃ j, s ↑j = ∅\nH' : ∀ (j : Subtype p), ¬BddBelow (range fun i...
if_pos H',
Mathlib.Tactic._aux_Mathlib_Tactic_SimpRw___elabRules_Mathlib_Tactic_tacticSimp_rw____1
null
Mathlib.Order.LiminfLimsup
{ "line": 1096, "column": 2 }
{ "line": 1096, "column": 22 }
[ { "pp": "α : Type u_1\nβ : Type u_2\nγ : Type u_6\ninst✝¹ : ConditionallyCompleteLattice β\ninst✝ : ConditionallyCompleteLattice γ\nf : Filter α\nu : α → β\ng : β ≃o γ\nhu : IsBoundedUnder (fun x1 x2 ↦ x1 ≤ x2) f u\nhu_co : IsCoboundedUnder (fun x1 x2 ↦ x1 ≤ x2) f u\nhgu : IsBoundedUnder (fun x1 x2 ↦ x1 ≤ x2) f...
refine g.monotone ?_
Lean.Elab.Tactic.evalRefine
Lean.Parser.Tactic.refine
Mathlib.Topology.Closure
{ "line": 337, "column": 33 }
{ "line": 337, "column": 40 }
[ { "pp": "X : Type u\ninst✝ : TopologicalSpace X\ns t : Set X\nh : Disjoint (closure s) (closure t)\nfull : interior sᶜ ∪ interior tᶜ = univ\n⊢ interior (s ∪ t) ∩ univ ⊆ interior s ∪ interior t", "usedConstants": [ "Eq.mpr", "congrArg", "Compl.compl", "Set.univ", "Set.instUnion"...
← full,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Topology.Continuous
{ "line": 103, "column": 59 }
{ "line": 103, "column": 84 }
[ { "pp": "X : Type u_1\nY : Type u_2\ninst✝¹ : TopologicalSpace X\ninst✝ : TopologicalSpace Y\nf : X → Y\nh : ∀ (s : Set Y), f ⁻¹' interior s ⊆ interior (f ⁻¹' s)\ns : Set Y\nhs : IsOpen s\n⊢ f ⁻¹' s ⊆ interior (f ⁻¹' s)", "usedConstants": [ "Eq.mpr", "congrArg", "Set.instIsTransSubset", ...
grw [← h, hs.interior_eq]
Mathlib.Tactic._aux_Mathlib_Tactic_GRewrite_Elab___macroRules_Mathlib_Tactic_grwSeq_1
Mathlib.Tactic.grwSeq
Mathlib.Topology.Continuous
{ "line": 103, "column": 59 }
{ "line": 103, "column": 84 }
[ { "pp": "X : Type u_1\nY : Type u_2\ninst✝¹ : TopologicalSpace X\ninst✝ : TopologicalSpace Y\nf : X → Y\nh : ∀ (s : Set Y), f ⁻¹' interior s ⊆ interior (f ⁻¹' s)\ns : Set Y\nhs : IsOpen s\n⊢ f ⁻¹' s ⊆ interior (f ⁻¹' s)", "usedConstants": [ "Eq.mpr", "congrArg", "Set.instIsTransSubset", ...
grw [← h, hs.interior_eq]
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Topology.Continuous
{ "line": 103, "column": 59 }
{ "line": 103, "column": 84 }
[ { "pp": "X : Type u_1\nY : Type u_2\ninst✝¹ : TopologicalSpace X\ninst✝ : TopologicalSpace Y\nf : X → Y\nh : ∀ (s : Set Y), f ⁻¹' interior s ⊆ interior (f ⁻¹' s)\ns : Set Y\nhs : IsOpen s\n⊢ f ⁻¹' s ⊆ interior (f ⁻¹' s)", "usedConstants": [ "Eq.mpr", "congrArg", "Set.instIsTransSubset", ...
grw [← h, hs.interior_eq]
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Topology.NhdsSet
{ "line": 139, "column": 55 }
{ "line": 139, "column": 78 }
[ { "pp": "X : Type u_1\ninst✝ : TopologicalSpace X\n⊢ 𝓝ˢ univ = ⊤", "usedConstants": [ "Eq.mpr", "congrArg", "Set.univ", "id", "isOpen_univ", "Filter.principal", "Filter.instTop", "Top.top", "IsOpen.nhdsSet_eq", "nhdsSet", "Eq", "Filter...
isOpen_univ.nhdsSet_eq,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Topology.Maps.Basic
{ "line": 314, "column": 2 }
{ "line": 315, "column": 24 }
[ { "pp": "X : Type u_1\nY : Type u_2\nf : X → Y\ninst✝¹ : TopologicalSpace X\ninst✝ : TopologicalSpace Y\nhf : IsOpenMap f\n⊢ IsOpen (range f)", "usedConstants": [ "Eq.mpr", "Set.image_univ", "congrArg", "Set.univ", "id", "isOpen_univ", "Set.image", "IsOpen", ...
rw [← image_univ] exact hf _ isOpen_univ
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Topology.Maps.Basic
{ "line": 314, "column": 2 }
{ "line": 315, "column": 24 }
[ { "pp": "X : Type u_1\nY : Type u_2\nf : X → Y\ninst✝¹ : TopologicalSpace X\ninst✝ : TopologicalSpace Y\nhf : IsOpenMap f\n⊢ IsOpen (range f)", "usedConstants": [ "Eq.mpr", "Set.image_univ", "congrArg", "Set.univ", "id", "isOpen_univ", "Set.image", "IsOpen", ...
rw [← image_univ] exact hf _ isOpen_univ
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Topology.NhdsWithin
{ "line": 188, "column": 2 }
{ "line": 188, "column": 67 }
[ { "pp": "α : Type u_1\ninst✝ : TopologicalSpace α\na : α\ns t u : Set α\nh₀ : a ∈ s\nh₁ : IsOpen s\nh₂ : t ∩ s = u ∩ s\n⊢ 𝓝[t] a = 𝓝[u] a", "usedConstants": [ "Eq.mpr", "congrArg", "nhdsWithin", "id", "Set.instInter", "Inter.inter", "nhdsWithin_restrict", "E...
rw [nhdsWithin_restrict t h₀ h₁, nhdsWithin_restrict u h₀ h₁, h₂]
Lean.Parser.Tactic._aux_Init_Tactics___macroRules_Lean_Parser_Tactic_rwSeq_1
Lean.Parser.Tactic.rwSeq
Mathlib.Topology.NhdsWithin
{ "line": 188, "column": 2 }
{ "line": 188, "column": 67 }
[ { "pp": "α : Type u_1\ninst✝ : TopologicalSpace α\na : α\ns t u : Set α\nh₀ : a ∈ s\nh₁ : IsOpen s\nh₂ : t ∩ s = u ∩ s\n⊢ 𝓝[t] a = 𝓝[u] a", "usedConstants": [ "Eq.mpr", "congrArg", "nhdsWithin", "id", "Set.instInter", "Inter.inter", "nhdsWithin_restrict", "E...
rw [nhdsWithin_restrict t h₀ h₁, nhdsWithin_restrict u h₀ h₁, h₂]
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Topology.NhdsWithin
{ "line": 188, "column": 2 }
{ "line": 188, "column": 67 }
[ { "pp": "α : Type u_1\ninst✝ : TopologicalSpace α\na : α\ns t u : Set α\nh₀ : a ∈ s\nh₁ : IsOpen s\nh₂ : t ∩ s = u ∩ s\n⊢ 𝓝[t] a = 𝓝[u] a", "usedConstants": [ "Eq.mpr", "congrArg", "nhdsWithin", "id", "Set.instInter", "Inter.inter", "nhdsWithin_restrict", "E...
rw [nhdsWithin_restrict t h₀ h₁, nhdsWithin_restrict u h₀ h₁, h₂]
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Topology.Constructions.SumProd
{ "line": 246, "column": 43 }
{ "line": 247, "column": 81 }
[ { "pp": "X : Type u\nY : Type v\ninst✝¹ : TopologicalSpace X\ninst✝ : TopologicalSpace Y\nx : X\ny : Y\ns : Set X\nt : Set Y\n⊢ 𝓝[s ×ˢ t] (x, y) = 𝓝[s] x ×ˢ 𝓝[t] y", "usedConstants": [ "Set.instSProd", "SProd.sprod", "congrArg", "nhdsWithin", "instTopologicalSpaceProd", ...
by simp only [nhdsWithin, nhds_prod_eq, ← prod_inf_prod, prod_principal_principal]
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Topology.Constructions.SumProd
{ "line": 288, "column": 97 }
{ "line": 289, "column": 45 }
[ { "pp": "Y : Type v\nZ : Type u_2\ninst✝¹ : TopologicalSpace Y\ninst✝ : TopologicalSpace Z\nX : Type u_5\nseq : X → Y × Z\nf : Filter X\np : Y × Z\n⊢ Tendsto seq f (𝓝 p) ↔ Tendsto (fun n ↦ (seq n).1) f (𝓝 p.1) ∧ Tendsto (fun n ↦ (seq n).2) f (𝓝 p.2)", "usedConstants": [ "Eq.mpr", "SProd.sprod...
by rw [nhds_prod_eq, Filter.tendsto_prod_iff']
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Topology.NhdsWithin
{ "line": 513, "column": 66 }
{ "line": 514, "column": 61 }
[ { "pp": "α : Type u_1\nβ : Type u_2\ninst✝ : TopologicalSpace α\ns : Set α\na : α\nh : a ∈ s\nf : α → β\nl : Filter β\n⊢ Tendsto f (𝓝[s] a) l ↔ Tendsto (s.restrict f) (𝓝 ⟨a, h⟩) l", "usedConstants": [ "Eq.mpr", "congrArg", "Filter.map", "nhdsWithin", "Iff.rfl", "nhdsWit...
by rw [nhdsWithin_eq_map_subtype_coe h, tendsto_map'_iff]; rfl
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Topology.Constructions.SumProd
{ "line": 434, "column": 2 }
{ "line": 436, "column": 5 }
[ { "pp": "Y : Type v\nW : Type u_1\ninst✝¹ : TopologicalSpace Y\ninst✝ : TopologicalSpace W\nX : Type u_5\nZ : Type u_6\nf : X → Y\ng : Z → W\n⊢ instTopologicalSpaceProd = induced (fun p ↦ (f p.1, g p.2)) instTopologicalSpaceProd", "usedConstants": [ "Eq.mpr", "induced_inf", "congrArg", ...
delta instTopologicalSpaceProd simp_rw [induced_inf, induced_compose] rfl
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Topology.Constructions.SumProd
{ "line": 434, "column": 2 }
{ "line": 436, "column": 5 }
[ { "pp": "Y : Type v\nW : Type u_1\ninst✝¹ : TopologicalSpace Y\ninst✝ : TopologicalSpace W\nX : Type u_5\nZ : Type u_6\nf : X → Y\ng : Z → W\n⊢ instTopologicalSpaceProd = induced (fun p ↦ (f p.1, g p.2)) instTopologicalSpaceProd", "usedConstants": [ "Eq.mpr", "induced_inf", "congrArg", ...
delta instTopologicalSpaceProd simp_rw [induced_inf, induced_compose] rfl
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Topology.Constructions.SumProd
{ "line": 465, "column": 2 }
{ "line": 465, "column": 76 }
[ { "pp": "X : Type u\nY : Type v\ninst✝¹ : TopologicalSpace X\ninst✝ : TopologicalSpace Y\nx : X × Y\n⊢ map Prod.snd (𝓝[Prod.fst ⁻¹' {x.1}] x) = 𝓝 x.2", "usedConstants": [ "Filter.instMembership", "Filter.map", "Filter.instCompleteLatticeFilter", "nhdsWithin", "instTopological...
refine le_antisymm (continuousAt_snd.mono_left inf_le_left) fun s hs => ?_
Lean.Elab.Tactic.evalRefine
Lean.Parser.Tactic.refine
Mathlib.Topology.NhdsWithin
{ "line": 572, "column": 2 }
{ "line": 572, "column": 82 }
[ { "pp": "α : Type u_1\ninst✝ : TopologicalSpace α\ns t : Set α\n⊢ 𝓟 (s ∩ t) ≤ 𝓝ˢ[t] s", "usedConstants": [ "Filter.instMembership", "Eq.mpr", "and_true", "Set.inter_subset_right._simp_1", "congrArg", "Filter.inf_principal", "Filter.instCompleteLatticeFilter", ...
simpa [nhdsSetWithin] using inf_le_of_left_le (b := 𝓟 t) <| principal_le_nhdsSet
Lean.Elab.Tactic.Simpa.evalSimpa
Lean.Parser.Tactic.simpa
Mathlib.Topology.NhdsWithin
{ "line": 572, "column": 2 }
{ "line": 572, "column": 82 }
[ { "pp": "α : Type u_1\ninst✝ : TopologicalSpace α\ns t : Set α\n⊢ 𝓟 (s ∩ t) ≤ 𝓝ˢ[t] s", "usedConstants": [ "Filter.instMembership", "Eq.mpr", "and_true", "Set.inter_subset_right._simp_1", "congrArg", "Filter.inf_principal", "Filter.instCompleteLatticeFilter", ...
simpa [nhdsSetWithin] using inf_le_of_left_le (b := 𝓟 t) <| principal_le_nhdsSet
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Topology.NhdsWithin
{ "line": 572, "column": 2 }
{ "line": 572, "column": 82 }
[ { "pp": "α : Type u_1\ninst✝ : TopologicalSpace α\ns t : Set α\n⊢ 𝓟 (s ∩ t) ≤ 𝓝ˢ[t] s", "usedConstants": [ "Filter.instMembership", "Eq.mpr", "and_true", "Set.inter_subset_right._simp_1", "congrArg", "Filter.inf_principal", "Filter.instCompleteLatticeFilter", ...
simpa [nhdsSetWithin] using inf_le_of_left_le (b := 𝓟 t) <| principal_le_nhdsSet
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Topology.Constructions
{ "line": 1007, "column": 2 }
{ "line": 1007, "column": 22 }
[ { "pp": "ι : Type u_5\nA : ι → Type u_6\nT : (i : ι) → TopologicalSpace (A i)\ns : Set ((a : ι) → A a)\n⊢ IsOpen s ↔ ∀ f ∈ s, ∃ I u, (∀ a ∈ I, IsOpen (u a) ∧ f a ∈ u a) ∧ (↑I).pi u ⊆ s", "usedConstants": [ "Eq.mpr", "Pi.topologicalSpace", "congrArg", "Finset", "PartialOrder.toP...
rw [isOpen_iff_nhds]
Lean.Parser.Tactic._aux_Init_Tactics___macroRules_Lean_Parser_Tactic_rwSeq_1
Lean.Parser.Tactic.rwSeq
Mathlib.Topology.Constructions
{ "line": 1008, "column": 2 }
{ "line": 1008, "column": 67 }
[ { "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 (u a) ∧ f a ∈ u a) ∧ (↑I).pi u ⊆ s", "usedConstants": [ "Filter.instMembership", "Eq.mpr", "_private.Mathlib.Topology.Construc...
simp_rw [le_principal_iff, nhds_pi, Filter.mem_pi', mem_nhds_iff]
Mathlib.Tactic._aux_Mathlib_Tactic_SimpRw___elabRules_Mathlib_Tactic_tacticSimp_rw____1
Mathlib.Tactic.tacticSimp_rw___
Mathlib.Topology.Constructions
{ "line": 1027, "column": 6 }
{ "line": 1027, "column": 24 }
[ { "pp": "case refine_2.refine_2\nι : Type u_5\nA : ι → Type u_6\nT : (i : ι) → TopologicalSpace (A i)\ns : Set ((a : ι) → A a)\na : (a : ι) → A a\nx✝ : a ∈ s\nI : Finset ι\nt : (a : ι) → Set (A a)\nh1 : ∀ a_1 ∈ I, IsOpen (t a_1) ∧ a a_1 ∈ t a_1\nh2 : (↑I).pi t ⊆ s\n⊢ ((↑I).pi fun a ↦ if a ∈ I then t a else univ...
rw [← univ_pi_ite]
Lean.Parser.Tactic._aux_Init_Tactics___macroRules_Lean_Parser_Tactic_rwSeq_1
Lean.Parser.Tactic.rwSeq
Mathlib.Topology.Constructions
{ "line": 1034, "column": 2 }
{ "line": 1034, "column": 22 }
[ { "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⊢ IsOpen s ↔ ∀ f ∈ s, ∃ u, (∀ (a : ι), IsOpen (u a) ∧ f a ∈ u a) ∧ univ.pi u ⊆ s", "usedConstants": [ "Eq.mpr", "Pi.topologicalSpace", "co...
rw [isOpen_iff_nhds]
Lean.Parser.Tactic._aux_Init_Tactics___macroRules_Lean_Parser_Tactic_rwSeq_1
Lean.Parser.Tactic.rwSeq
Mathlib.Topology.Constructions
{ "line": 1035, "column": 2 }
{ "line": 1035, "column": 67 }
[ { "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 (u a) ∧ f a ∈ u a) ∧ univ.pi u ⊆ s", "usedConstants": [ "Filter.instMembership", "Eq...
simp_rw [le_principal_iff, nhds_pi, Filter.mem_pi', mem_nhds_iff]
Mathlib.Tactic._aux_Mathlib_Tactic_SimpRw___elabRules_Mathlib_Tactic_tacticSimp_rw____1
Mathlib.Tactic.tacticSimp_rw___
Mathlib.Topology.Constructions.SumProd
{ "line": 822, "column": 2 }
{ "line": 826, "column": 62 }
[ { "pp": "case mpr\nX : Type u\nY : Type v\nZ : Type u_2\ninst✝² : TopologicalSpace X\ninst✝¹ : TopologicalSpace Y\ninst✝ : TopologicalSpace Z\nf : X ⊕ Y → Z\n⊢ ((IsClosedMap fun a ↦ f (inl a)) ∧ IsClosedMap fun b ↦ f (inr b)) → IsClosedMap f", "usedConstants": [ "Set.ext", "Eq.mpr", "congr...
· rintro h Z hZ rw [isClosed_sum_iff] at hZ convert (h.1 _ hZ.1).union (h.2 _ hZ.2) ext simp only [mem_image, Sum.exists, mem_union, mem_preimage]
Lean.Elab.Tactic.evalTacticCDot
Lean.cdot
Mathlib.Topology.Constructions
{ "line": 1222, "column": 2 }
{ "line": 1222, "column": 33 }
[ { "pp": "X : Type u\nι : Type u_5\nσ : ι → Type u_7\ninst✝¹ : (i : ι) → TopologicalSpace (σ i)\ninst✝ : TopologicalSpace X\nf : Sigma σ → X\n⊢ Continuous f ↔ ∀ (i : ι), Continuous fun a ↦ f ⟨i, a⟩", "usedConstants": [ "Continuous", "id", "instTopologicalSpaceSigma", "Iff", "Sig...
delta instTopologicalSpaceSigma
Lean.Elab.Tactic.evalDelta
Lean.Parser.Tactic.delta
Mathlib.Topology.Bases
{ "line": 90, "column": 4 }
{ "line": 91, "column": 69 }
[ { "pp": "case refine_3\nα : Type u\ns : Set (Set α)\nthis : TopologicalSpace α := generateFrom s\n⊢ ∀ s_1 ∈ (fun f ↦ ⋂₀ f) '' {f | f.Finite ∧ f ⊆ s}, IsOpen s_1", "usedConstants": [ "TopologicalSpace.GenerateOpen.basic", "setOf", "Set.Finite", "Membership.mem", "HasSubset.Subse...
rintro _ ⟨t, ⟨hft, htb⟩, rfl⟩ exact hft.isOpen_sInter fun s hs ↦ GenerateOpen.basic _ <| htb hs
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Topology.Bases
{ "line": 90, "column": 4 }
{ "line": 91, "column": 69 }
[ { "pp": "case refine_3\nα : Type u\ns : Set (Set α)\nthis : TopologicalSpace α := generateFrom s\n⊢ ∀ s_1 ∈ (fun f ↦ ⋂₀ f) '' {f | f.Finite ∧ f ⊆ s}, IsOpen s_1", "usedConstants": [ "TopologicalSpace.GenerateOpen.basic", "setOf", "Set.Finite", "Membership.mem", "HasSubset.Subse...
rintro _ ⟨t, ⟨hft, htb⟩, rfl⟩ exact hft.isOpen_sInter fun s hs ↦ GenerateOpen.basic _ <| htb hs
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Topology.Constructions
{ "line": 1337, "column": 2 }
{ "line": 1337, "column": 53 }
[ { "pp": "X : Type u\ninst✝ : TopologicalSpace X\ns : Set X\nt : Set ↑s\nht : IsOpen t\nhs : IsOpen s\n⊢ IsOpen (Subtype.val '' t)", "usedConstants": [ "Membership.mem", "Exists", "Set.Elem", "And", "TopologicalSpace.induced", "Set.preimage", "Iff.mp", "IsOpen"...
rcases isOpen_induced_iff.mp ht with ⟨s', hs', rfl⟩
_private.Lean.Elab.Tactic.RCases.0.Lean.Elab.Tactic.RCases.evalRCases
Lean.Parser.Tactic.rcases
Mathlib.Order.Filter.Ultrafilter.Basic
{ "line": 34, "column": 2 }
{ "line": 36, "column": 72 }
[ { "pp": "α : Type u\nf : Ultrafilter α\ns : Set (Set α)\nhs : s.Finite\n⊢ ⋃₀ s ∈ f ↔ ∃ t ∈ s, t ∈ f", "usedConstants": [ "Ultrafilter.union_mem_iff._simp_1", "False", "Set.mem_empty_iff_false._simp_1", "congrArg", "exists_const._simp_1", "Set.sUnion_insert", "Set.sU...
induction s, hs using Set.Finite.induction_on with | empty => simp | insert _ _ his => simp [union_mem_iff, his, or_and_right, exists_or]
_private.Lean.Elab.Tactic.Induction.0.Lean.Elab.Tactic.evalInduction
Lean.Parser.Tactic.induction
Mathlib.Order.Filter.Ultrafilter.Basic
{ "line": 34, "column": 2 }
{ "line": 36, "column": 72 }
[ { "pp": "α : Type u\nf : Ultrafilter α\ns : Set (Set α)\nhs : s.Finite\n⊢ ⋃₀ s ∈ f ↔ ∃ t ∈ s, t ∈ f", "usedConstants": [ "Ultrafilter.union_mem_iff._simp_1", "False", "Set.mem_empty_iff_false._simp_1", "congrArg", "exists_const._simp_1", "Set.sUnion_insert", "Set.sU...
induction s, hs using Set.Finite.induction_on with | empty => simp | insert _ _ his => simp [union_mem_iff, his, or_and_right, exists_or]
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Order.Filter.Ultrafilter.Basic
{ "line": 34, "column": 2 }
{ "line": 36, "column": 72 }
[ { "pp": "α : Type u\nf : Ultrafilter α\ns : Set (Set α)\nhs : s.Finite\n⊢ ⋃₀ s ∈ f ↔ ∃ t ∈ s, t ∈ f", "usedConstants": [ "Ultrafilter.union_mem_iff._simp_1", "False", "Set.mem_empty_iff_false._simp_1", "congrArg", "exists_const._simp_1", "Set.sUnion_insert", "Set.sU...
induction s, hs using Set.Finite.induction_on with | empty => simp | insert _ _ his => simp [union_mem_iff, his, or_and_right, exists_or]
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Order.Filter.SmallSets
{ "line": 114, "column": 39 }
{ "line": 114, "column": 55 }
[ { "pp": "α : Type u_4\nι : Sort u_5\np : ι → Prop\nl : Filter α\ns : ι → Set α\nq : Set α → Prop\nhl : l.HasBasis p s\nhq : ∀ ⦃s t : Set α⦄, s ⊆ t → q s → q t\n⊢ (∀ t ∈ l, q t) ↔ ∀ (i : ι), p i → q (s i)", "usedConstants": [ "Filter.instMembership", "Eq.mpr", "congrArg", "Membership....
hl.forall_iff hq
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Topology.LocallyFinite
{ "line": 81, "column": 2 }
{ "line": 88, "column": 78 }
[ { "pp": "ι : Type u_1\nX : Type u_4\ninst✝ : TopologicalSpace X\nf : ι → Set X\nhf : LocallyFinite f\na : X\nU : Set X\nhaU : U ∈ 𝓝 a\nhfin : {i | (f i ∩ U).Nonempty}.Finite\n⊢ 𝓝[⋃ i, f i] a ≤ ⨆ i, 𝓝[f i] a", "usedConstants": [ "Eq.mpr", "Filter.instSupSet", "nhdsWithin_biUnion", ...
calc 𝓝[⋃ i, f i] a = 𝓝[⋃ i, f i ∩ U] a := by rw [← iUnion_inter, ← nhdsWithin_inter_of_mem' (nhdsWithin_le_nhds haU)] _ = 𝓝[⋃ i ∈ {j | (f j ∩ U).Nonempty}, (f i ∩ U)] a := by simp only [mem_setOf_eq, iUnion_nonempty_self] _ = ⨆ i ∈ {j | (f j ∩ U).Nonempty}, 𝓝[f i ∩ U] a := nhdsWithin_biUnion...
Lean.Elab.Tactic._aux_Mathlib_Tactic_Widget_Calc___elabRules_Lean_calcTactic_1
Lean.calcTactic
Mathlib.Topology.GDelta.Basic
{ "line": 180, "column": 2 }
{ "line": 183, "column": 74 }
[ { "pp": "X : Type u_1\ninst✝ : TopologicalSpace X\ns : Set X\nho : IsGδ s\nhd : Dense s\n⊢ s ∈ residual X", "usedConstants": [ "Filter.instMembership", "Iff.mpr", "countableInterFilter_residual", "residual", "Membership.mem", "Dense", "Dense.mono", "Set.sInter...
rcases ho with ⟨T, To, Tct, rfl⟩ exact (countable_sInter_mem Tct).mpr fun t tT => residual_of_dense_open (To t tT) (hd.mono (sInter_subset_of_mem tT))
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Topology.GDelta.Basic
{ "line": 180, "column": 2 }
{ "line": 183, "column": 74 }
[ { "pp": "X : Type u_1\ninst✝ : TopologicalSpace X\ns : Set X\nho : IsGδ s\nhd : Dense s\n⊢ s ∈ residual X", "usedConstants": [ "Filter.instMembership", "Iff.mpr", "countableInterFilter_residual", "residual", "Membership.mem", "Dense", "Dense.mono", "Set.sInter...
rcases ho with ⟨T, To, Tct, rfl⟩ exact (countable_sInter_mem Tct).mpr fun t tT => residual_of_dense_open (To t tT) (hd.mono (sInter_subset_of_mem tT))
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Order.Filter.CountableInter
{ "line": 243, "column": 93 }
{ "line": 247, "column": 10 }
[ { "pp": "ι : Sort u_1\nα✝ : Type u_2\nβ✝ : Type u_3\nl✝ : Filter α✝\ninst✝² : CountableInterFilter l✝\nα : Type u_4\nβ : Type u_5\nl : Filter α\nm : Filter β\ninst✝¹ : CountableInterFilter l\ninst✝ : CountableInterFilter m\n⊢ ∀ (S : Set (Set (α × β))), S.Countable → (∀ s ∈ S, s ∈ l.curry m) → ⋂₀ S ∈ l.curry m",...
by intro S Sct hS simp_rw [mem_curry_iff, mem_sInter, eventually_countable_ball (p := fun _ _ _ => (_, _) ∈ _) Sct, eventually_countable_ball (p := fun _ _ _ => ∀ᶠ (_ : β) in m, _) Sct, ← mem_curry_iff] exact hS
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Topology.Maps.OpenQuotient
{ "line": 126, "column": 2 }
{ "line": 136, "column": 45 }
[ { "pp": "case a.h.a.mp\nA : Type u_4\nB : Type u_5\nC : Type u_6\nD : Type u_7\ninst✝² : TopologicalSpace A\ninst✝¹ : TopologicalSpace B\ninst✝ : TopologicalSpace D\nf : A → B\ng : C → D\np : A → C\nq : B → D\nh : g ∘ p = q ∘ f\nhf : IsInducing f\nhp : Surjective p\nhq : IsOpenQuotientMap q\nhg : Injective g\nH...
· rintro ⟨V, hV, e⟩ refine ⟨V, hq.continuous.1 _ (hq.isOpenMap _ hV), ?_⟩ ext x obtain ⟨x, rfl⟩ := hp x constructor · rintro ⟨y, hy, e'⟩ obtain ⟨y, rfl⟩ := H ⟨_, ⟨x, rfl⟩, (e'.trans (congr_fun h x)).symm⟩ rw [← hg ((congr_fun h y).trans e')] exact e.le hy · intro H exact ...
Lean.Elab.Tactic.evalTacticCDot
Lean.cdot
Mathlib.Topology.Compactness.Compact
{ "line": 1211, "column": 8 }
{ "line": 1214, "column": 17 }
[ { "pp": "case neg\nX : Type u\ninst✝¹ : TopologicalSpace X\ninst✝ : CompactSpace X\nS : Set X\nhS : IsClosed S\nhne : S.Nonempty\nopens : Set (Set X) := {U | Sᶜ ⊆ U ∧ IsOpen U ∧ Uᶜ.Nonempty}\nc : Set (Set X)\nhc : c ⊆ opens\nhz : IsChain (fun x1 x2 ↦ x1 ⊆ x2) c\nhcne : ¬c.Nonempty\n⊢ ∃ ub ∈ opens, ∀ s ∈ c, s ⊆ ...
use Sᶜ refine ⟨⟨Set.Subset.refl _, isOpen_compl_iff.mpr hS, ?_⟩, fun U Uc => (hcne ⟨U, Uc⟩).elim⟩ rw [compl_compl] exact hne
Lean.Elab.Tactic.evalTacticSeq1Indented
Lean.Parser.Tactic.tacticSeq1Indented
Mathlib.Topology.Compactness.Compact
{ "line": 1211, "column": 8 }
{ "line": 1214, "column": 17 }
[ { "pp": "case neg\nX : Type u\ninst✝¹ : TopologicalSpace X\ninst✝ : CompactSpace X\nS : Set X\nhS : IsClosed S\nhne : S.Nonempty\nopens : Set (Set X) := {U | Sᶜ ⊆ U ∧ IsOpen U ∧ Uᶜ.Nonempty}\nc : Set (Set X)\nhc : c ⊆ opens\nhz : IsChain (fun x1 x2 ↦ x1 ⊆ x2) c\nhcne : ¬c.Nonempty\n⊢ ∃ ub ∈ opens, ∀ s ∈ c, s ⊆ ...
use Sᶜ refine ⟨⟨Set.Subset.refl _, isOpen_compl_iff.mpr hS, ?_⟩, fun U Uc => (hcne ⟨U, Uc⟩).elim⟩ rw [compl_compl] exact hne
Lean.Elab.Tactic.evalTacticSeq
Lean.Parser.Tactic.tacticSeq
Mathlib.Topology.Inseparable
{ "line": 631, "column": 77 }
{ "line": 634, "column": 50 }
[ { "pp": "X : Type u_1\ninst✝ : TopologicalSpace X\ns : Set X\nhs : IsClosed s\n⊢ mk ⁻¹' (mk '' s) = s", "usedConstants": [ "Set.Subset.antisymm", "SeparationQuotient.mk_eq_mk", "Membership.mem", "Inseparable.mem_closed_iff", "And.casesOn", "And", "Exists.casesOn", ...
by refine Subset.antisymm ?_ (subset_preimage_image _ _) rintro x ⟨y, hys, hxy⟩ exact ((mk_eq_mk.1 hxy).mem_closed_iff hs).1 hys
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Topology.Separation.Hausdorff
{ "line": 697, "column": 21 }
{ "line": 697, "column": 55 }
[ { "pp": "X : Type u_1\ninst✝¹ : TopologicalSpace X\ninst✝ : T2Space X\nS : Set X\n⊢ S.Nonempty ∧ IsPreirreducible S ↔ ∃ x, S = {x}", "usedConstants": [ "IsPreirreducible", "Eq.mpr", "congrArg", "Exists", "Set.instSingletonSet", "id", "And", "Iff", "Set.N...
isPreirreducible_iff_subsingleton,
Lean.Elab.Tactic.evalRewriteSeq
null
Mathlib.Topology.Algebra.InfiniteSum.Defs
{ "line": 192, "column": 2 }
{ "line": 192, "column": 88 }
[ { "pp": "case neg\nα : Type u_1\nβ : Type u_2\ninst✝¹ : CommMonoid α\ninst✝ : TopologicalSpace α\nL : SummationFilter β\nhL : ¬L.NeBot\nf : β → α\nthis : L.LeAtTop\nhf : ¬(mulSupport f).Finite\n⊢ (if L.HasSupport ∧ (mulSupport fun b ↦ f b).Finite then ∏ᶠ (b : β), f b\n else if HasProd (fun b ↦ f b) 1 L then ...
· rwa [if_neg (by tauto), if_pos (hasProd_bot hL _ _), finprod_of_infinite_mulSupport]
Lean.Elab.Tactic.evalTacticCDot
Lean.cdot
Mathlib.Topology.Separation.Basic
{ "line": 181, "column": 2 }
{ "line": 181, "column": 80 }
[ { "pp": "case inr\nX : Type u_1\ninst✝¹ : TopologicalSpace X\ninst✝ : T0Space X\ns : Set X\nhs : IsOpen s\nhmin : ∀ t ⊆ s, t.Nonempty → IsOpen t → t = s\nx : X\nhx : x ∈ s\ny : X\nhy : y ∈ s\nhxy : ¬x = y\nU : Set X\nhUo : IsOpen U\nhU : Xor' (x ∈ U) (y ∈ U)\nthis :\n ∀ {X : Type u_1} [inst : TopologicalSpace ...
· exact this hs hmin y hy x hx (Ne.symm hxy) U hUo hU.symm (hU.resolve_left h)
Lean.Elab.Tactic.evalTacticCDot
Lean.cdot
Mathlib.Topology.Separation.Basic
{ "line": 593, "column": 51 }
{ "line": 598, "column": 63 }
[ { "pp": "X : Type u_1\ninst✝¹ : TopologicalSpace X\ninst✝ : T1Space X\nx y : X\ns t : Set X\nhu : t ⊆ insert y s\n⊢ insert x s ∈ 𝓝[t] x", "usedConstants": [ "Filter.instMembership", "Eq.mpr", "congrArg", "nhdsWithin", "Membership.mem", "id", "Insert.insert", ...
by rcases eq_or_ne x y with (rfl | h) · exact mem_of_superset self_mem_nhdsWithin hu refine nhdsWithin_mono x hu ?_ rw [nhdsWithin_insert_of_ne h] exact mem_of_superset self_mem_nhdsWithin (subset_insert x s)
[anonymous]
Lean.Parser.Term.byTactic
Mathlib.Topology.Separation.Basic
{ "line": 693, "column": 2 }
{ "line": 693, "column": 47 }
[ { "pp": "X : Type u_1\ninst✝ : TopologicalSpace X\ns : Set X\na : X\np : X → Prop\nhs : IsOpen s\n⊢ (∀ᶠ (y : X) in 𝓝[s] a, ∀ᶠ (x : X) in 𝓝 y, p x) ↔ ∀ᶠ (x : X) in 𝓝[s] a, p x", "usedConstants": [ "Eq.mpr", "congrArg", "nhdsWithin", "Filter.Eventually", "nhds", "id", ...
nth_rw 2 [← eventually_eventually_nhdsWithin]
Mathlib.Tactic._aux_Mathlib_Tactic_NthRewrite___macroRules_Mathlib_Tactic_tacticNth_rw______1
Mathlib.Tactic.tacticNth_rw_____
Mathlib.Topology.Separation.Basic
{ "line": 738, "column": 68 }
{ "line": 740, "column": 65 }
[ { "pp": "X : Type u_1\nY : Type u_2\ninst✝² : TopologicalSpace X\ninst✝¹ : TopologicalSpace Y\ninst✝ : T1Space Y\nf : X → Y\ns : Set X\nc : Y\nh : ∀ x ∈ closure s, ContinuousWithinAt f s x\nht : EqOn f (fun x ↦ c) s\n⊢ EqOn f (fun x ↦ c) (closure s)", "usedConstants": [ "ContinuousWithinAt.eq_const_of...
by intro x hx apply ContinuousWithinAt.eq_const_of_mem_closure (h x hx) hx ht
[anonymous]
Lean.Parser.Term.byTactic