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start
list
Mathlib/Data/Real/CauSeq.lean
IsCauSeq.cauchy₃
[]
[ 116, 50 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 113, 1 ]
Mathlib/AlgebraicGeometry/StructureSheaf.lean
AlgebraicGeometry.StructureSheaf.toStalk_stalkSpecializes
[ { "state_after": "R✝ : Type u\ninst✝¹ : CommRing R✝\nR : Type u_1\ninst✝ : CommRing R\nx y : PrimeSpectrum R\nh : x ⤳ y\n⊢ (toOpen R ⊤ ≫ germ (Sheaf.presheaf (structureSheaf R)) { val := y, property := True.intro }) ≫\n stalkSpecializes (Sheaf.presheaf (structureSheaf R)) h =\n toOpen R ⊤ ≫ germ (Sheaf....
[ 1022, 39 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1020, 1 ]
Mathlib/Data/Finset/Basic.lean
Finset.coe_union
[]
[ 1367, 29 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1366, 1 ]
Mathlib/Topology/MetricSpace/HausdorffDistance.lean
EMetric.infEdist_le_edist_of_mem
[]
[ 87, 15 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 86, 1 ]
Mathlib/CategoryTheory/NatTrans.lean
CategoryTheory.congr_app
[ { "state_after": "no goals", "state_before": "C : Type u₁\ninst✝¹ : Category C\nD : Type u₂\ninst✝ : Category D\nF G : C ⥤ D\nα β : NatTrans F G\nh : α = β\nX : C\n⊢ α.app X = β.app X", "tactic": "aesop_cat" } ]
[ 70, 12 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 69, 1 ]
Mathlib/MeasureTheory/Function/Jacobian.lean
MeasureTheory.addHaar_image_eq_zero_of_differentiableOn_of_addHaar_eq_zero
[ { "state_after": "E : Type u_1\nF : Type ?u.556355\ninst✝⁷ : NormedAddCommGroup E\ninst✝⁶ : NormedSpace ℝ E\ninst✝⁵ : FiniteDimensional ℝ E\ninst✝⁴ : NormedAddCommGroup F\ninst✝³ : NormedSpace ℝ F\ns : Set E\nf : E → E\nf' : E → E →L[ℝ] E\ninst✝² : MeasurableSpace E\ninst✝¹ : BorelSpace E\nμ : Measure E\ninst✝ ...
[ 603, 61 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 567, 1 ]
Mathlib/Data/Bool/Set.lean
Bool.range_eq
[ { "state_after": "no goals", "state_before": "α : Type u_1\nf : Bool → α\n⊢ range f = {f false, f true}", "tactic": "rw [← image_univ, univ_eq, image_pair]" } ]
[ 32, 41 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 31, 1 ]
Mathlib/Data/Seq/Seq.lean
Stream'.Seq.ofStream_append
[ { "state_after": "no goals", "state_before": "α : Type u\nβ : Type v\nγ : Type w\nl : List α\ns : Stream' α\n⊢ ↑(l ++ₛ s) = append ↑l ↑s", "tactic": "induction l <;> simp [*, Stream'.nil_append_stream, Stream'.cons_append_stream]" } ]
[ 826, 82 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 824, 1 ]
Mathlib/Order/Bounds/Basic.lean
AntitoneOn.mem_lowerBounds_image
[]
[ 1221, 42 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1220, 1 ]
Mathlib/Data/Finset/Image.lean
Finset.range_sdiff_zero
[ { "state_after": "case zero\nα : Type ?u.151859\nβ : Type ?u.151862\nγ : Type ?u.151865\n⊢ range (Nat.zero + 1) \\ {0} = image Nat.succ (range Nat.zero)\n\ncase succ\nα : Type ?u.151859\nβ : Type ?u.151862\nγ : Type ?u.151865\nk : ℕ\nhk : range (k + 1) \\ {0} = image Nat.succ (range k)\n⊢ range (Nat.succ k + 1)...
[ 763, 7 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 758, 1 ]
Mathlib/Analysis/SpecialFunctions/Trigonometric/Angle.lean
Real.Angle.eq_iff_abs_toReal_eq_of_sign_eq
[ { "state_after": "no goals", "state_before": "θ ψ : Angle\nh : sign θ = sign ψ\n⊢ θ = ψ ↔ abs (toReal θ) = abs (toReal ψ)", "tactic": "simpa [h] using @eq_iff_sign_eq_and_abs_toReal_eq θ ψ" } ]
[ 966, 96 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 965, 1 ]
Mathlib/RingTheory/PolynomialAlgebra.lean
matPolyEquiv_coeff_apply_aux_2
[ { "state_after": "case refine_1\nR : Type u_1\nA : Type ?u.521163\ninst✝⁴ : CommSemiring R\ninst✝³ : Semiring A\ninst✝² : Algebra R A\nn : Type w\ninst✝¹ : DecidableEq n\ninst✝ : Fintype n\ni j : n\np : R[X]\nk : ℕ\n⊢ ∀ (p q : R[X]),\n coeff (↑matPolyEquiv (stdBasisMatrix i j p)) k = stdBasisMatrix i j (coef...
[ 257, 13 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 247, 1 ]
Mathlib/Data/Real/Hyperreal.lean
Hyperreal.epsilon_mul_omega
[]
[ 198, 38 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 197, 1 ]
Mathlib/Topology/Connected.lean
IsPreconnected.subset_left_of_subset_union
[ { "state_after": "α : Type u\nβ : Type v\nι : Type ?u.29699\nπ : ι → Type ?u.29704\ninst✝ : TopologicalSpace α\ns t u v : Set α\nhu : IsOpen u\nhv : IsOpen v\nhuv : Disjoint u v\nhsuv : s ⊆ u ∪ v\nhsu : Set.Nonempty (s ∩ u)\nhs : IsPreconnected s\nhsv : ¬Disjoint s v\n⊢ False", "state_before": "α : Type u\n...
[ 436, 39 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 428, 1 ]
Mathlib/MeasureTheory/Function/SimpleFuncDenseLp.lean
MeasureTheory.SimpleFunc.memℒp_iff_integrable
[]
[ 369, 57 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 367, 1 ]
Mathlib/SetTheory/Cardinal/Basic.lean
Cardinal.powerlt_mono_left
[]
[ 2298, 95 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 2298, 1 ]
Mathlib/FieldTheory/IntermediateField.lean
IntermediateField.coe_inv
[]
[ 264, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 263, 11 ]
Mathlib/Order/SymmDiff.lean
symmDiff_assoc
[ { "state_after": "no goals", "state_before": "ι : Type ?u.71775\nα : Type u_1\nβ : Type ?u.71781\nπ : ι → Type ?u.71786\ninst✝ : GeneralizedBooleanAlgebra α\na b c d : α\n⊢ a ∆ b ∆ c = a ∆ (b ∆ c)", "tactic": "rw [symmDiff_symmDiff_left, symmDiff_symmDiff_right]" } ]
[ 478, 55 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 477, 1 ]
Mathlib/Algebra/Module/Submodule/Basic.lean
Submodule.toSubMulAction_strictMono
[]
[ 167, 84 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 166, 1 ]
Mathlib/CategoryTheory/Functor/FullyFaithful.lean
CategoryTheory.Functor.map_injective
[]
[ 78, 25 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 76, 1 ]
Mathlib/Data/List/Cycle.lean
Cycle.subsingleton_reverse_iff
[ { "state_after": "no goals", "state_before": "α : Type u_1\ns : Cycle α\n⊢ Subsingleton (reverse s) ↔ Subsingleton s", "tactic": "simp [length_subsingleton_iff]" } ]
[ 606, 33 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 605, 1 ]
Std/Data/Int/Lemmas.lean
Int.le_sub_one_of_lt
[]
[ 1264, 93 ]
e68aa8f5fe47aad78987df45f99094afbcb5e936
https://github.com/leanprover/std4
[ 1264, 1 ]
Mathlib/Algebra/Group/Prod.lean
MulHom.prod_apply
[]
[ 354, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 353, 1 ]
Mathlib/Combinatorics/SimpleGraph/Subgraph.lean
SimpleGraph.neighborSet_subgraphOfAdj_subset
[]
[ 938, 51 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 936, 1 ]
Mathlib/Algebra/BigOperators/Finsupp.lean
Finsupp.prod_pow
[]
[ 157, 38 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 155, 1 ]
Mathlib/Data/Matrix/Notation.lean
Matrix.vec2_add
[ { "state_after": "no goals", "state_before": "α : Type u\no n m : ℕ\nm' : Type uₘ\nn' : Type uₙ\no' : Type uₒ\na b : ℕ\ninst✝ : Add α\na₀ a₁ b₀ b₁ : α\n⊢ ![a₀, a₁] + ![b₀, b₁] = ![a₀ + b₀, a₁ + b₁]", "tactic": "rw [cons_add_cons, cons_add_cons, empty_add_empty]" } ]
[ 471, 53 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 470, 1 ]
Mathlib/Logic/Function/Basic.lean
Function.injective_of_isPartialInv_right
[]
[ 324, 43 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 322, 1 ]
Mathlib/Data/Polynomial/RingDivision.lean
Polynomial.natDegree_sub_eq_of_prod_eq
[ { "state_after": "R : Type u\nS : Type v\nT : Type w\na b : R\nn : ℕ\ninst✝¹ : Semiring R\ninst✝ : NoZeroDivisors R\np q p₁ p₂ q₁ q₂ : R[X]\nhp₁ : p₁ ≠ 0\nhq₁ : q₁ ≠ 0\nhp₂ : p₂ ≠ 0\nhq₂ : q₂ ≠ 0\nh_eq : p₁ * q₂ = p₂ * q₁\n⊢ ↑(natDegree p₁) + ↑(natDegree q₂) = ↑(natDegree p₂) + ↑(natDegree q₁)", "state_befo...
[ 208, 62 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 203, 1 ]
Mathlib/MeasureTheory/Function/LpSpace.lean
MeasureTheory.Lp.nnnorm_le_of_ae_bound
[ { "state_after": "case pos\nα : Type u_1\nE : Type u_2\nF : Type ?u.431143\nG : Type ?u.431146\nm m0 : MeasurableSpace α\np : ℝ≥0∞\nq : ℝ\nμ ν : Measure α\ninst✝³ : NormedAddCommGroup E\ninst✝² : NormedAddCommGroup F\ninst✝¹ : NormedAddCommGroup G\ninst✝ : IsFiniteMeasure μ\nf : { x // x ∈ Lp E p }\nC : ℝ≥0\nhf...
[ 423, 62 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 414, 1 ]
Mathlib/Topology/SubsetProperties.lean
exists_preirreducible
[]
[ 1758, 46 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1741, 1 ]
Mathlib/MeasureTheory/Function/EssSup.lean
essInf_eq_sSup
[ { "state_after": "α : Type u_1\nβ : Type u_2\nm✝ : MeasurableSpace α\nμ✝ ν : MeasureTheory.Measure α\ninst✝ : ConditionallyCompleteLinearOrder β\nx : β\nf✝ : α → β\nm : MeasurableSpace α\nμ : MeasureTheory.Measure α\nf : α → β\n⊢ sSup {a | ∀ᶠ (n : β) in map f (Measure.ae μ), a ≤ n} = sSup {a | ↑↑μ {x | f x < a}...
[ 100, 45 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 97, 1 ]
Mathlib/LinearAlgebra/QuadraticForm/Basic.lean
QuadraticForm.basisRepr_apply
[ { "state_after": "S : Type ?u.690539\nR : Type u_1\nR₁ : Type ?u.690545\nM : Type u_2\nM₁ : Type ?u.690551\ninst✝⁶ : Semiring R\ninst✝⁵ : CommSemiring R₁\ninst✝⁴ : AddCommMonoid M\ninst✝³ : AddCommMonoid M₁\ninst✝² : Module R M\ninst✝¹ : Module R M₁\nι : Type u_3\ninst✝ : Fintype ι\nv : Basis ι R M\nQ : Quadrat...
[ 1151, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1148, 1 ]
Std/Data/String/Lemmas.lean
String.Pos.valid_endPos
[ { "state_after": "no goals", "state_before": "s : String\n⊢ s.data ++ [] = s.data", "tactic": "simp" } ]
[ 153, 77 ]
e68aa8f5fe47aad78987df45f99094afbcb5e936
https://github.com/leanprover/std4
[ 153, 9 ]
Mathlib/Analysis/Convex/Segment.lean
right_mem_segment
[]
[ 122, 46 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 121, 1 ]
Mathlib/GroupTheory/GroupAction/Group.lean
smul_inv_smul
[ { "state_after": "no goals", "state_before": "α : Type u\nβ : Type v\nγ : Type w\ninst✝¹ : Group α\ninst✝ : MulAction α β\nc : α\nx : β\n⊢ c • c⁻¹ • x = x", "tactic": "rw [smul_smul, mul_right_inv, one_smul]" } ]
[ 45, 42 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 44, 1 ]
Mathlib/CategoryTheory/Limits/Preserves/Shapes/Zero.lean
CategoryTheory.Functor.zero_of_map_zero
[]
[ 61, 58 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 59, 1 ]
Mathlib/Data/IsROrC/Basic.lean
IsROrC.inv_re
[ { "state_after": "no goals", "state_before": "K : Type u_1\nE : Type ?u.5379086\ninst✝ : IsROrC K\nz : K\n⊢ ↑re z⁻¹ = ↑re z / ↑normSq z", "tactic": "rw [inv_def, normSq_eq_def', mul_comm, ofReal_mul_re, conj_re, div_eq_inv_mul]" } ]
[ 556, 81 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 555, 1 ]
Mathlib/Data/Set/Basic.lean
Set.symmDiff_eq_empty
[]
[ 2106, 18 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 2105, 1 ]
Mathlib/Algebra/LinearRecurrence.lean
LinearRecurrence.sol_eq_of_eq_init
[ { "state_after": "α : Type u_1\ninst✝ : CommSemiring α\nE : LinearRecurrence α\nu v : ℕ → α\nhu : IsSolution E u\nhv : IsSolution E v\n⊢ Set.EqOn u v ↑(range E.order) → u = v", "state_before": "α : Type u_1\ninst✝ : CommSemiring α\nE : LinearRecurrence α\nu v : ℕ → α\nhu : IsSolution E u\nhv : IsSolution E ...
[ 169, 39 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 159, 1 ]
Mathlib/Analysis/Calculus/MeanValue.lean
Antitone.concaveOn_univ_of_deriv
[]
[ 1147, 24 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1144, 1 ]
Mathlib/Analysis/SpecialFunctions/NonIntegrable.lean
intervalIntegrable_sub_inv_iff
[ { "state_after": "case mp\nE : Type ?u.34598\nF : Type ?u.34601\ninst✝⁴ : NormedAddCommGroup E\ninst✝³ : NormedSpace ℝ E\ninst✝² : SecondCountableTopology E\ninst✝¹ : CompleteSpace E\ninst✝ : NormedAddCommGroup F\na b c : ℝ\n⊢ IntervalIntegrable (fun x => (x - c)⁻¹) volume a b → a = b ∨ ¬c ∈ [[a, b]]\n\ncase mp...
[ 170, 66 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 162, 1 ]
Mathlib/CategoryTheory/Limits/Cones.lean
CategoryTheory.Limits.Cocone.w
[ { "state_after": "J : Type u₁\ninst✝³ : Category J\nK : Type u₂\ninst✝² : Category K\nC : Type u₃\ninst✝¹ : Category C\nD : Type u₄\ninst✝ : Category D\nF : J ⥤ C\nc : Cocone F\nj j' : J\nf : j ⟶ j'\n⊢ c.ι.app j ≫ ((const J).obj c.pt).map f = c.ι.app j", "state_before": "J : Type u₁\ninst✝³ : Category J\nK ...
[ 182, 16 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 179, 1 ]
Mathlib/Analysis/SpecialFunctions/Pow/Deriv.lean
HasStrictDerivAt.cpow
[ { "state_after": "no goals", "state_before": "f g : ℂ → ℂ\ns : Set ℂ\nf' g' x c : ℂ\nhf : HasStrictDerivAt f f' x\nhg : HasStrictDerivAt g g' x\nh0 : 0 < (f x).re ∨ (f x).im ≠ 0\n⊢ HasStrictDerivAt (fun x => f x ^ g x) (g x * f x ^ (g x - 1) * f' + f x ^ g x * Complex.log (f x) * g') x", "tactic": "simp...
[ 157, 47 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 154, 8 ]
src/lean/Init/Data/Array/BasicAux.lean
Array.of_push_eq_push
[ { "state_after": "α : Type u_1\na b : α\nas bs : Array α\nh : List.concat as.data a = List.concat bs.data b\n⊢ as = bs ∧ a = b", "state_before": "α : Type u_1\na b : α\nas bs : Array α\nh : push as a = push bs b\n⊢ as = bs ∧ a = b", "tactic": "simp [push] at h" }, { "state_after": "α : Type u_1\...
[ 15, 11 ]
d5348dfac847a56a4595fb6230fd0708dcb4e7e9
https://github.com/leanprover/lean4
[ 11, 1 ]
Mathlib/Order/Lattice.lean
inf_sup_left
[ { "state_after": "no goals", "state_before": "α : Type u\nβ : Type v\ninst✝ : DistribLattice α\nx y z : α\n⊢ x ⊓ (y ⊔ z) = x ⊓ (x ⊔ z) ⊓ (y ⊔ z)", "tactic": "rw [inf_sup_self]" }, { "state_after": "no goals", "state_before": "α : Type u\nβ : Type v\ninst✝ : DistribLattice α\nx y z : α\n⊢ x ⊓...
[ 774, 46 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 768, 1 ]
Mathlib/LinearAlgebra/AffineSpace/AffineEquiv.lean
AffineEquiv.coe_constVSub_symm
[]
[ 473, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 472, 1 ]
Mathlib/Topology/MetricSpace/EMetricSpace.lean
edist_triangle4
[]
[ 125, 87 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 122, 1 ]
Mathlib/RingTheory/Polynomial/Basic.lean
Polynomial.frange_one
[ { "state_after": "R : Type u\nS : Type ?u.46907\ninst✝ : Semiring R\n⊢ image (fun n => coeff 1 n) (support 1) ⊆ {1}", "state_before": "R : Type u\nS : Type ?u.46907\ninst✝ : Semiring R\n⊢ frange 1 ⊆ {1}", "tactic": "simp only [frange]" }, { "state_after": "R : Type u\nS : Type ?u.46907\ninst✝ : ...
[ 205, 12 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 199, 1 ]
Mathlib/Data/Nat/Prime.lean
Nat.minFac_eq_two_iff
[ { "state_after": "case mp\nn : ℕ\n⊢ minFac n = 2 → 2 ∣ n\n\ncase mpr\nn : ℕ\n⊢ 2 ∣ n → minFac n = 2", "state_before": "n : ℕ\n⊢ minFac n = 2 ↔ 2 ∣ n", "tactic": "constructor" }, { "state_after": "case mp\nn : ℕ\nh : minFac n = 2\n⊢ 2 ∣ n", "state_before": "case mp\nn : ℕ\n⊢ minFac n = 2 → 2 ...
[ 445, 60 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 433, 1 ]
Mathlib/Data/Nat/Log.lean
Nat.log_le_clog
[ { "state_after": "case inl\nb n : ℕ\nhb : b ≤ 1\n⊢ log b n ≤ clog b n\n\ncase inr\nb n : ℕ\nhb : 1 < b\n⊢ log b n ≤ clog b n", "state_before": "b n : ℕ\n⊢ log b n ≤ clog b n", "tactic": "obtain hb | hb := le_or_lt b 1" }, { "state_after": "no goals", "state_before": "case inr\nb n : ℕ\nhb : ...
[ 367, 69 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 357, 1 ]
src/lean/Init/Data/Nat/Basic.lean
Nat.le_of_lt
[]
[ 284, 18 ]
d5348dfac847a56a4595fb6230fd0708dcb4e7e9
https://github.com/leanprover/lean4
[ 283, 11 ]
Mathlib/Data/Multiset/Basic.lean
Multiset.coe_add
[]
[ 623, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 622, 1 ]
Mathlib/Data/Num/Lemmas.lean
Num.succ'_to_nat
[]
[ 295, 35 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 293, 1 ]
Mathlib/Data/Nat/Digits.lean
Nat.ofDigits_singleton
[ { "state_after": "no goals", "state_before": "n✝ b n : ℕ\n⊢ ofDigits b [n] = n", "tactic": "simp [ofDigits]" } ]
[ 191, 80 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 191, 1 ]
Mathlib/Order/Closure.lean
ClosureOperator.closure_sup_closure_le
[]
[ 253, 28 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 252, 1 ]
Mathlib/Data/Seq/Computation.lean
Computation.liftRel_map
[ { "state_after": "α : Type u\nβ : Type v\nγ : Type w\nδ : Type u_1\nR : α → β → Prop\nS : γ → δ → Prop\ns1 : Computation α\ns2 : Computation β\nf1 : α → γ\nf2 : β → δ\nh1 : LiftRel R s1 s2\nh2 : ∀ {a : α} {b : β}, R a b → S (f1 a) (f2 b)\n⊢ LiftRel S (bind s1 (pure ∘ f1)) (bind s2 (pure ∘ f2))", "state_befo...
[ 1234, 53 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1226, 1 ]
Mathlib/Data/Fin/Basic.lean
Fin.bot_eq_zero
[]
[ 560, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 559, 1 ]
Mathlib/Order/Filter/SmallSets.lean
Filter.smallSets_inf
[]
[ 128, 31 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 127, 1 ]
Mathlib/LinearAlgebra/AffineSpace/Independent.lean
AffineIndependent.units_lineMap
[ { "state_after": "k : Type u_1\nV : Type u_2\nP : Type u_3\ninst✝³ : Ring k\ninst✝² : AddCommGroup V\ninst✝¹ : Module k V\ninst✝ : AffineSpace V P\nι : Type u_4\np : ι → P\nj : ι\nhp : LinearIndependent k fun i => p ↑i -ᵥ p j\nw : ι → kˣ\n⊢ LinearIndependent k fun i => ↑(AffineMap.lineMap (p j) (p ↑i)) ↑(w ↑i) ...
[ 267, 35 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 263, 1 ]
Mathlib/Data/List/Sigma.lean
List.dlookup_kinsert
[ { "state_after": "no goals", "state_before": "α : Type u\nβ : α → Type v\nl✝ l₁ l₂ : List (Sigma β)\ninst✝ : DecidableEq α\na : α\nb : β a\nl : List (Sigma β)\n⊢ dlookup a (kinsert a b l) = some b", "tactic": "simp only [kinsert, dlookup_cons_eq]" } ]
[ 590, 39 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 588, 1 ]
Mathlib/Algebra/Order/Pointwise.lean
csInf_div
[ { "state_after": "no goals", "state_before": "α : Type u_1\ninst✝³ : ConditionallyCompleteLattice α\ninst✝² : Group α\ninst✝¹ : CovariantClass α α (fun x x_1 => x * x_1) fun x x_1 => x ≤ x_1\ninst✝ : CovariantClass α α (swap fun x x_1 => x * x_1) fun x x_1 => x ≤ x_1\ns t : Set α\nhs₀ : Set.Nonempty s\nhs₁ ...
[ 172, 92 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 170, 1 ]
Mathlib/Order/LiminfLimsup.lean
Filter.limsInf_le_of_le
[]
[ 462, 16 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 459, 1 ]
Mathlib/Analysis/SpecialFunctions/Trigonometric/Arctan.lean
Real.continuous_tan
[]
[ 72, 58 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 71, 1 ]
Mathlib/Algebra/Quaternion.lean
Quaternion.rat_cast_im
[]
[ 1371, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1370, 1 ]
Mathlib/FieldTheory/IntermediateField.lean
IntermediateField.coe_copy
[]
[ 138, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 136, 1 ]
Mathlib/Tactic/CancelDenoms.lean
CancelDenoms.cancel_factors_eq
[ { "state_after": "α : Type u_1\ninst✝ : Field α\na b ad bd a' b' gcd : α\nha : ad * a = a'\nhb : bd * b = b'\nhad : ad ≠ 0\nhbd : bd ≠ 0\nhgcd : gcd ≠ 0\n⊢ (a = b) = (1 / gcd * (ad * bd * a) = 1 / gcd * (ad * bd * b))", "state_before": "α : Type u_1\ninst✝ : Field α\na b ad bd a' b' gcd : α\nha : ad * a = a...
[ 93, 25 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 80, 1 ]
Mathlib/RingTheory/Polynomial/Bernstein.lean
bernsteinPolynomial.sum_mul_smul
[ { "state_after": "R : Type u_1\ninst✝ : CommRing R\nn : ℕ\nx : MvPolynomial Bool R := MvPolynomial.X true\n⊢ ∑ ν in Finset.range (n + 1), (ν * (ν - 1)) • bernsteinPolynomial R n ν = (n * (n - 1)) • X ^ 2", "state_before": "R : Type u_1\ninst✝ : CommRing R\nn : ℕ\n⊢ ∑ ν in Finset.range (n + 1), (ν * (ν - 1))...
[ 385, 20 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 345, 1 ]
Mathlib/LinearAlgebra/Multilinear/Basic.lean
MultilinearMap.map_add_univ
[ { "state_after": "no goals", "state_before": "R : Type u\nι : Type u'\nn : ℕ\nM : Fin (Nat.succ n) → Type v\nM₁ : ι → Type v₁\nM₂ : Type v₂\nM₃ : Type v₃\nM' : Type v'\ninst✝¹² : Semiring R\ninst✝¹¹ : (i : Fin (Nat.succ n)) → AddCommMonoid (M i)\ninst✝¹⁰ : (i : ι) → AddCommMonoid (M₁ i)\ninst✝⁹ : AddCommMon...
[ 492, 51 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 490, 1 ]
Mathlib/MeasureTheory/Function/AEEqOfIntegral.lean
MeasureTheory.ae_nonneg_of_forall_set_integral_nonneg_of_sigmaFinite
[ { "state_after": "case h\nα : Type u_1\nE : Type ?u.82616\nm m0 : MeasurableSpace α\nμ : Measure α\ns t : Set α\ninst✝³ : NormedAddCommGroup E\ninst✝² : NormedSpace ℝ E\ninst✝¹ : CompleteSpace E\np : ℝ≥0∞\nf✝ : α → ℝ\ninst✝ : SigmaFinite μ\nf : α → ℝ\nhf_int_finite : ∀ (s : Set α), MeasurableSet s → ↑↑μ s < ⊤ →...
[ 325, 76 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 316, 1 ]
Mathlib/CategoryTheory/Category/Preorder.lean
Monotone.functor_obj
[]
[ 144, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 143, 1 ]
Std/Data/List/Lemmas.lean
List.set_eq_modifyNth
[ { "state_after": "no goals", "state_before": "α : Type u_1\na : α\nl : List α\n⊢ set l 0 a = modifyNth (fun x => a) 0 l", "tactic": "cases l <;> rfl" } ]
[ 775, 62 ]
e68aa8f5fe47aad78987df45f99094afbcb5e936
https://github.com/leanprover/std4
[ 772, 1 ]
Mathlib/RingTheory/WittVector/IsPoly.lean
WittVector.IsPoly₂.diag
[ { "state_after": "case mk'.intro\np : ℕ\nR S : Type u\nσ : Type ?u.613386\nidx : Type ?u.613389\ninst✝¹ : CommRing R\ninst✝ : CommRing S\nf : ⦃R : Type u_1⦄ → [inst : CommRing R] → 𝕎 R → 𝕎 R → 𝕎 R\nφ : ℕ → MvPolynomial (Fin 2 × ℕ) ℤ\nhf : ∀ ⦃R : Type u_1⦄ [inst : CommRing R] (x y : 𝕎 R), (f x y).coeff = fun...
[ 356, 45 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 344, 1 ]
Mathlib/Analysis/Convex/Star.lean
starConvex_iff_segment_subset
[ { "state_after": "case mp\n𝕜 : Type u_1\nE : Type u_2\nF : Type ?u.2030\ninst✝⁴ : OrderedSemiring 𝕜\ninst✝³ : AddCommMonoid E\ninst✝² : AddCommMonoid F\ninst✝¹ : SMul 𝕜 E\ninst✝ : SMul 𝕜 F\nx : E\ns t : Set E\n⊢ StarConvex 𝕜 x s → ∀ ⦃y : E⦄, y ∈ s → [x-[𝕜]y] ⊆ s\n\ncase mpr\n𝕜 : Type u_1\nE : Type u_2\nF...
[ 82, 40 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 77, 1 ]
Mathlib/Geometry/Euclidean/Inversion.lean
EuclideanGeometry.mul_dist_le_mul_dist_add_mul_dist
[ { "state_after": "case inl\nV : Type ?u.37918\nP : Type u_1\ninst✝³ : NormedAddCommGroup V\ninst✝² : InnerProductSpace ℝ V\ninst✝¹ : MetricSpace P\ninst✝ : NormedAddTorsor V P\na b✝ c✝ d✝ x y z : P\nR : ℝ\nb c d : P\n⊢ dist b c * dist b d ≤ dist b b * dist c d + dist b c * dist b d\n\ncase inr\nV : Type ?u.3791...
[ 137, 81 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 120, 1 ]
Mathlib/Algebra/Order/CompleteField.lean
LinearOrderedField.le_inducedMap_mul_self_of_mem_cutMap
[ { "state_after": "case intro.intro\nF : Type ?u.25469\nα : Type u_1\nβ : Type u_2\nγ : Type ?u.25478\ninst✝³ : LinearOrderedField α\ninst✝² : ConditionallyCompleteLinearOrderedField β\ninst✝¹ : ConditionallyCompleteLinearOrderedField γ\ninst✝ : Archimedean α\na : α\nb : β\nq✝ : ℚ\nha : 0 < a\nq : ℚ\nhb : q ∈ {t...
[ 270, 68 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 260, 1 ]
Mathlib/Data/List/Basic.lean
List.reduceOption_length_eq_iff
[ { "state_after": "case nil\nι : Type ?u.351472\nα : Type u\nβ : Type v\nγ : Type w\nδ : Type x\nl₁ l₂ : List α\n⊢ length (reduceOption []) = length [] ↔ ∀ (x : Option α), x ∈ [] → Option.isSome x = true\n\ncase cons\nι : Type ?u.351472\nα : Type u\nβ : Type v\nγ : Type w\nδ : Type x\nl₁ l₂ : List α\nhd : Option...
[ 3469, 38 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 3456, 1 ]
Mathlib/Tactic/NormNum/Basic.lean
Mathlib.Meta.NormNum.isRat_le_true
[ { "state_after": "α : Type u_1\ninst✝ : LinearOrderedRing α\nnum✝¹ num✝ : ℤ\nda db : ℕ\ninv✝¹ : Invertible ↑da\ninv✝ : Invertible ↑db\nh✝ : decide (Int.mul num✝¹ (Int.ofNat db) ≤ Int.mul num✝ (Int.ofNat da)) = true\nh : (fun x => ↑x) (Int.mul num✝¹ (Int.ofNat db)) ≤ (fun x => ↑x) (Int.mul num✝ (Int.ofNat da))\n...
[ 732, 43 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 723, 1 ]
Mathlib/Data/Polynomial/Degree/TrailingDegree.lean
Polynomial.trailingDegree_mul'
[ { "state_after": "R : Type u\nS : Type v\na b : R\nn m : ℕ\ninst✝ : Semiring R\np q r : R[X]\nh : trailingCoeff p * trailingCoeff q ≠ 0\nhp : p ≠ 0\n⊢ trailingDegree (p * q) = trailingDegree p + trailingDegree q", "state_before": "R : Type u\nS : Type v\na b : R\nn m : ℕ\ninst✝ : Semiring R\np q r : R[X]\nh...
[ 408, 58 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 400, 1 ]
Mathlib/Data/List/Card.lean
List.inj_on_of_subset
[]
[ 17, 63 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 16, 1 ]
Mathlib/Data/Nat/PartENat.lean
PartENat.ne_zero_iff
[]
[ 340, 25 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 339, 1 ]
Mathlib/MeasureTheory/Function/L2Space.lean
MeasureTheory.L2.smul_left'
[ { "state_after": "α : Type u_1\nE : Type u_2\nF : Type ?u.103781\n𝕜 : Type u_3\ninst✝⁴ : IsROrC 𝕜\ninst✝³ : MeasurableSpace α\nμ : Measure α\ninst✝² : NormedAddCommGroup E\ninst✝¹ : InnerProductSpace 𝕜 E\ninst✝ : NormedAddCommGroup F\nf g : { x // x ∈ Lp E 2 }\nr : 𝕜\n⊢ (∫ (a : α), inner (↑↑(r • f) a) (↑↑g ...
[ 216, 57 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 212, 9 ]
Mathlib/Analysis/SpecialFunctions/Trigonometric/Inverse.lean
Real.arcsin_eq_pi_div_two_sub_arccos
[ { "state_after": "no goals", "state_before": "x : ℝ\n⊢ arcsin x = π / 2 - arccos x", "tactic": "simp [arccos]" } ]
[ 346, 98 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 346, 1 ]
Mathlib/SetTheory/Ordinal/CantorNormalForm.lean
Ordinal.CNFRec_zero
[ { "state_after": "C : Ordinal → Sort u_2\nb : Ordinal\nH0 : C 0\nH : (o : Ordinal) → o ≠ 0 → C (o % b ^ log b o) → C o\n⊢ Eq.mpr (_ : C 0 = C 0) H0 = H0", "state_before": "C : Ordinal → Sort u_2\nb : Ordinal\nH0 : C 0\nH : (o : Ordinal) → o ≠ 0 → C (o % b ^ log b o) → C o\n⊢ CNFRec b H0 H 0 = H0", "tact...
[ 61, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 58, 1 ]
Mathlib/GroupTheory/Subgroup/Pointwise.lean
inv_coe_set
[]
[ 41, 31 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 40, 1 ]
Mathlib/RingTheory/Subring/Basic.lean
Subring.mem_toAddSubgroup
[]
[ 533, 10 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 532, 1 ]
Std/Data/Int/Lemmas.lean
Int.subNatNat_of_sub_eq_succ
[ { "state_after": "no goals", "state_before": "m n k : Nat\nh : n - m = succ k\n⊢ subNatNat m n = -[k+1]", "tactic": "rw [subNatNat, h]" } ]
[ 31, 20 ]
e68aa8f5fe47aad78987df45f99094afbcb5e936
https://github.com/leanprover/std4
[ 30, 1 ]
Mathlib/FieldTheory/IntermediateField.lean
IntermediateField.div_mem
[]
[ 202, 10 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 201, 11 ]
Mathlib/Topology/Spectral/Hom.lean
isSpectralMap_id
[]
[ 57, 34 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 56, 1 ]
Mathlib/CategoryTheory/Limits/Fubini.lean
CategoryTheory.Limits.limitUncurryIsoLimitCompLim_hom_π_π
[ { "state_after": "J K : Type v\ninst✝⁵ : SmallCategory J\ninst✝⁴ : SmallCategory K\nC : Type u\ninst✝³ : Category C\nF : J ⥤ K ⥤ C\ninst✝² : HasLimitsOfShape K C\ninst✝¹ : HasLimit (uncurry.obj F)\ninst✝ : HasLimit (F ⋙ lim)\nj : J\nk : K\n⊢ limit.lift (F ⋙ lim) (coneOfConeUncurry (fun j => limit.isLimit (F.obj...
[ 204, 7 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 201, 1 ]
Mathlib/Analysis/Normed/Group/AddCircle.lean
AddCircle.norm_eq_of_zero
[ { "state_after": "p x : ℝ\n⊢ {y | ↑y = ↑x} = {x}", "state_before": "p x : ℝ\n⊢ ‖↑x‖ = abs x", "tactic": "suffices { y : ℝ | (y : AddCircle (0 : ℝ)) = (x : AddCircle (0 : ℝ)) } = {x} by\n rw [quotient_norm_eq, this, image_singleton, Real.norm_eq_abs, csInf_singleton]" }, { "state_after": "case h...
[ 86, 74 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 82, 1 ]
Mathlib/Analysis/SpecialFunctions/Trigonometric/Basic.lean
Complex.exp_pi_mul_I
[]
[ 1369, 33 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1368, 1 ]
Mathlib/Data/Set/Intervals/SurjOn.lean
surjOn_Ioo_of_monotone_surjective
[ { "state_after": "α : Type u_1\nβ : Type u_2\ninst✝¹ : LinearOrder α\ninst✝ : PartialOrder β\nf : α → β\nh_mono : Monotone f\nh_surj : Surjective f\na b : α\np : β\nhp : p ∈ Ioo (f a) (f b)\n⊢ p ∈ f '' Ioo a b", "state_before": "α : Type u_1\nβ : Type u_2\ninst✝¹ : LinearOrder α\ninst✝ : PartialOrder β\nf :...
[ 36, 68 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 30, 1 ]
Mathlib/Data/Int/Log.lean
Int.clog_natCast
[ { "state_after": "case zero\nR : Type u_1\ninst✝¹ : LinearOrderedSemifield R\ninst✝ : FloorSemiring R\nb : ℕ\n⊢ clog b ↑Nat.zero = ↑(Nat.clog b Nat.zero)\n\ncase succ\nR : Type u_1\ninst✝¹ : LinearOrderedSemifield R\ninst✝ : FloorSemiring R\nb n : ℕ\n⊢ clog b ↑(Nat.succ n) = ↑(Nat.clog b (Nat.succ n))", "st...
[ 237, 83 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 234, 1 ]
Mathlib/NumberTheory/Padics/PadicNumbers.lean
padicNormE.norm_int_le_pow_iff_dvd
[ { "state_after": "p : ℕ\nhp : Fact (Nat.Prime p)\nk : ℤ\nn : ℕ\nthis : ↑p ^ (-↑n) = ↑(↑p ^ (-↑n))\n⊢ ‖↑k‖ ≤ ↑p ^ (-↑n) ↔ ↑(p ^ n) ∣ k", "state_before": "p : ℕ\nhp : Fact (Nat.Prime p)\nk : ℤ\nn : ℕ\n⊢ ‖↑k‖ ≤ ↑p ^ (-↑n) ↔ ↑(p ^ n) ∣ k", "tactic": "have : (p : ℝ) ^ (-n : ℤ) = (p : ℚ) ^ (-n : ℤ) := by simp...
[ 947, 35 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 942, 1 ]
Mathlib/Analysis/Calculus/FDeriv/Equiv.lean
LinearIsometryEquiv.comp_hasFDerivWithinAt_iff
[]
[ 321, 47 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 319, 1 ]
Mathlib/CategoryTheory/Iso.lean
CategoryTheory.Functor.map_inv_hom
[ { "state_after": "no goals", "state_before": "C : Type u\ninst✝² : Category C\nX✝ Y✝ Z : C\nD : Type u₂\ninst✝¹ : Category D\nF : C ⥤ D\nX Y : C\nf : X ⟶ Y\ninst✝ : IsIso f\n⊢ F.map (inv f) ≫ F.map f = 𝟙 (F.obj Y)", "tactic": "simp" } ]
[ 632, 53 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 631, 1 ]
Mathlib/Data/MvPolynomial/Counit.lean
MvPolynomial.ACounit_X
[]
[ 50, 14 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 49, 1 ]
Mathlib/Topology/Homeomorph.lean
Continuous.continuous_symm_of_equiv_compact_to_t2
[ { "state_after": "α : Type u_1\nβ : Type u_2\nγ : Type ?u.104526\nδ : Type ?u.104529\ninst✝³ : TopologicalSpace α\ninst✝² : TopologicalSpace β\ninst✝¹ : CompactSpace α\ninst✝ : T2Space β\nf : α ≃ β\nhf : Continuous ↑f\n⊢ ∀ (s : Set α), IsClosed s → IsClosed (↑f.symm ⁻¹' s)", "state_before": "α : Type u_1\nβ...
[ 706, 39 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 701, 1 ]
Mathlib/Data/Nat/Basic.lean
Nat.leRecOn_surjective
[ { "state_after": "case refl\nm✝ n✝ k : ℕ\nC : ℕ → Sort u\nn m : ℕ\nnext : {k : ℕ} → C k → C (k + 1)\nHnext : ∀ (n : ℕ), Function.Surjective next\n⊢ Function.Surjective (leRecOn (_ : Nat.le n n) fun {k} => next)\n\ncase step\nm✝¹ n✝ k : ℕ\nC : ℕ → Sort u\nn m✝ : ℕ\nnext : {k : ℕ} → C k → C (k + 1)\nHnext : ∀ (n ...
[ 457, 20 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 445, 1 ]
Mathlib/NumberTheory/PellMatiyasevic.lean
Pell.y_mul_dvd
[ { "state_after": "a : ℕ\na1 : 1 < a\nn k : ℕ\n⊢ yn a1 n ∣ xn a1 (n * k) * yn a1 n + yn a1 (n * k) * xn a1 n", "state_before": "a : ℕ\na1 : 1 < a\nn k : ℕ\n⊢ yn a1 n ∣ yn a1 (n * (k + 1))", "tactic": "rw [Nat.mul_succ, yn_add]" }, { "state_after": "no goals", "state_before": "a : ℕ\na1 : 1 < ...
[ 435, 94 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 432, 1 ]