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start
list
Mathlib/Analysis/Convex/Join.lean
convexJoin_left_comm
[ { "state_after": "no goals", "state_before": "ι : Sort ?u.68928\n𝕜 : Type u_2\nE : Type u_1\ninst✝² : LinearOrderedField 𝕜\ninst✝¹ : AddCommGroup E\ninst✝ : Module 𝕜 E\ns✝ t✝ u✝ : Set E\nx y : E\ns t u : Set E\n⊢ convexJoin 𝕜 s (convexJoin 𝕜 t u) = convexJoin 𝕜 t (convexJoin 𝕜 s u)", "tactic": "s...
[ 166, 48 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 164, 1 ]
Mathlib/Order/OrdContinuous.lean
LeftOrdContinuous.comp
[ { "state_after": "no goals", "state_before": "α : Type u\nβ : Type v\nγ : Type w\nι : Sort x\ninst✝² : Preorder α\ninst✝¹ : Preorder β\ninst✝ : Preorder γ\ng : β → γ\nf : α → β\nhg : LeftOrdContinuous g\nhf : LeftOrdContinuous f\ns : Set α\nx : α\nh : IsLUB s x\n⊢ IsLUB (g ∘ f '' s) ((g ∘ f) x)", "tacti...
[ 80, 59 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 79, 1 ]
Mathlib/LinearAlgebra/Lagrange.lean
Lagrange.eval_interpolate_at_node
[ { "state_after": "F : Type u_2\ninst✝¹ : Field F\nι : Type u_1\ninst✝ : DecidableEq ι\ns t : Finset ι\ni j : ι\nv r r' : ι → F\nhvs : Set.InjOn v ↑s\nhi : i ∈ s\n⊢ eval (v i) (↑C (r i) * Lagrange.basis s v i) + ∑ x in Finset.erase s i, eval (v i) (↑C (r x) * Lagrange.basis s v x) =\n r i", "state_before"...
[ 328, 69 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 323, 1 ]
Mathlib/MeasureTheory/Integral/SetToL1.lean
MeasureTheory.setToFun_smul_left
[ { "state_after": "case pos\nα : Type u_1\nE : Type u_2\nF : Type u_3\nF' : Type ?u.1360856\nG : Type ?u.1360859\n𝕜 : Type ?u.1360862\np : ℝ≥0∞\ninst✝⁷ : NormedAddCommGroup E\ninst✝⁶ : NormedSpace ℝ E\ninst✝⁵ : NormedAddCommGroup F\ninst✝⁴ : NormedSpace ℝ F\ninst✝³ : NormedAddCommGroup F'\ninst✝² : NormedSpace ...
[ 1339, 45 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1335, 1 ]
Mathlib/Topology/LocallyFinite.lean
LocallyFinite.continuous
[]
[ 121, 83 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 118, 11 ]
Mathlib/SetTheory/Ordinal/Arithmetic.lean
Ordinal.sup_typein_limit
[ { "state_after": "no goals", "state_before": "α : Type ?u.343526\nβ : Type ?u.343529\nγ : Type ?u.343532\nr : α → α → Prop\ns : β → β → Prop\nt : γ → γ → Prop\no : Ordinal\nho : ∀ (a : Ordinal), a < o → succ a < o\n⊢ ∀ (a : Ordinal), a < o → succ a < o", "tactic": "assumption" } ]
[ 1730, 91 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1727, 1 ]
Mathlib/Topology/ContinuousOn.lean
continuousOn_const
[]
[ 978, 32 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 977, 1 ]
Mathlib/Topology/ContinuousOn.lean
mem_nhdsWithin_iff_exists_mem_nhds_inter
[]
[ 101, 51 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 99, 1 ]
Mathlib/Data/Polynomial/FieldDivision.lean
Polynomial.root_gcd_iff_root_left_right
[]
[ 351, 101 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 349, 1 ]
Mathlib/Topology/Instances/ENNReal.lean
hasSum_iff_tendsto_nat_of_nonneg
[ { "state_after": "case intro\nα : Type ?u.341642\nβ : Type ?u.341645\nγ : Type ?u.341648\nr : ℝ\nf : ℕ → ℝ≥0\n⊢ HasSum (fun i => ↑(f i)) r ↔ Tendsto (fun n => ∑ i in Finset.range n, (fun i => ↑(f i)) i) atTop (𝓝 r)", "state_before": "α : Type ?u.341642\nβ : Type ?u.341645\nγ : Type ?u.341648\nf : ℕ → ℝ\nhf...
[ 1314, 61 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1310, 1 ]
Mathlib/Analysis/Complex/CauchyIntegral.lean
DifferentiableOn.circleIntegral_sub_inv_smul
[]
[ 540, 87 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 537, 1 ]
Mathlib/Algebra/Quaternion.lean
QuaternionAlgebra.zero_imJ
[]
[ 176, 59 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 176, 9 ]
Mathlib/Data/Complex/Module.lean
Complex.coe_smul
[]
[ 221, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 219, 1 ]
Mathlib/Data/Finset/Image.lean
Function.Commute.finset_image
[]
[ 437, 35 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 435, 1 ]
Mathlib/Algebra/FreeMonoid/Basic.lean
FreeMonoid.ofList_singleton
[]
[ 140, 60 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 140, 1 ]
Mathlib/Data/Seq/Computation.lean
Computation.get_mem
[]
[ 465, 60 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 464, 1 ]
Mathlib/Data/Polynomial/Basic.lean
Polynomial.support_C_mul_X_pow
[ { "state_after": "no goals", "state_before": "R : Type u\na b : R\nm n✝ : ℕ\ninst✝ : Semiring R\np q : R[X]\nn : ℕ\nc : R\nh : c ≠ 0\n⊢ support (↑C c * X ^ n) = {n}", "tactic": "rw [C_mul_X_pow_eq_monomial, support_monomial n h]" } ]
[ 854, 53 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 852, 1 ]
Mathlib/Tactic/NormNum/Basic.lean
Mathlib.Meta.NormNum.eq_of_false
[]
[ 762, 80 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 762, 1 ]
Mathlib/Algebra/Module/Projective.lean
Module.projective_def'
[ { "state_after": "no goals", "state_before": "R : Type u_1\ninst✝⁶ : Semiring R\nP : Type u_2\ninst✝⁵ : AddCommMonoid P\ninst✝⁴ : Module R P\nM : Type ?u.2418\ninst✝³ : AddCommMonoid M\ninst✝² : Module R M\nN : Type ?u.2448\ninst✝¹ : AddCommMonoid N\ninst✝ : Module R N\n⊢ Projective R P ↔ ∃ s, comp (Finsupp...
[ 96, 91 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 94, 1 ]
Mathlib/GroupTheory/Complement.lean
Subgroup.isComplement_top_right
[ { "state_after": "case refine'_1\nG : Type u_1\ninst✝ : Group G\nH K : Subgroup G\nS T : Set G\nh : IsComplement S ⊤\n⊢ Set.Nonempty S\n\ncase refine'_2\nG : Type u_1\ninst✝ : Group G\nH K : Subgroup G\nS T : Set G\nh : IsComplement S ⊤\na : G\nha : a ∈ S\nb : G\nhb : b ∈ S\n⊢ a = b\n\ncase refine'_3\nG : Type ...
[ 170, 37 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 161, 1 ]
Mathlib/RepresentationTheory/Basic.lean
Representation.tprod_apply
[]
[ 372, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 371, 1 ]
Mathlib/Data/Nat/Fib.lean
Nat.fib_bit1_succ
[ { "state_after": "no goals", "state_before": "n : ℕ\n⊢ fib (bit1 n + 1) = fib (n + 1) * (2 * fib n + fib (n + 1))", "tactic": "rw [Nat.bit1_eq_succ_bit0, bit0_eq_two_mul, fib_two_mul_add_two]" } ]
[ 199, 67 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 198, 1 ]
Mathlib/LinearAlgebra/AffineSpace/Restrict.lean
AffineMap.restrict.injective
[ { "state_after": "k : Type u_1\nV₁ : Type u_2\nP₁ : Type u_3\nV₂ : Type u_4\nP₂ : Type u_5\ninst✝⁸ : Ring k\ninst✝⁷ : AddCommGroup V₁\ninst✝⁶ : AddCommGroup V₂\ninst✝⁵ : Module k V₁\ninst✝⁴ : Module k V₂\ninst✝³ : AddTorsor V₁ P₁\ninst✝² : AddTorsor V₂ P₂\nφ : P₁ →ᵃ[k] P₂\nhφ : Function.Injective ↑φ\nE : Affine...
[ 81, 13 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 76, 1 ]
Mathlib/Logic/Function/Conjugate.lean
Function.Semiconj₂.comp
[ { "state_after": "no goals", "state_before": "α : Type u_3\nβ : Type u_1\nγ : Type u_2\nf : α → β\nga : α → α → α\ngb : β → β → β\nf' : β → γ\ngc : γ → γ → γ\nhf' : Semiconj₂ f' gb gc\nhf : Semiconj₂ f ga gb\nx y : α\n⊢ (f' ∘ f) (ga x y) = gc ((f' ∘ f) x) ((f' ∘ f) y)", "tactic": "simp only [hf'.eq, hf....
[ 161, 83 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 160, 1 ]
Mathlib/Topology/Semicontinuous.lean
continuous_iff_lower_upperSemicontinuous
[ { "state_after": "no goals", "state_before": "α : Type u_1\ninst✝⁴ : TopologicalSpace α\nβ : Type ?u.229144\ninst✝³ : Preorder β\nf✝ g : α → β\nx : α\ns t : Set α\ny z : β\nγ : Type u_2\ninst✝² : LinearOrder γ\ninst✝¹ : TopologicalSpace γ\ninst✝ : OrderTopology γ\nf : α → γ\n⊢ Continuous f ↔ LowerSemicontin...
[ 1120, 68 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1117, 1 ]
Mathlib/Order/Bounds/OrderIso.lean
OrderIso.isLUB_preimage
[ { "state_after": "no goals", "state_before": "α : Type u_2\nβ : Type u_1\ninst✝¹ : Preorder α\ninst✝ : Preorder β\nf : α ≃o β\ns : Set β\nx : α\n⊢ IsLUB (↑f ⁻¹' s) x ↔ IsLUB s (↑f x)", "tactic": "rw [← f.symm_symm, ← image_eq_preimage, isLUB_image]" } ]
[ 56, 55 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 55, 1 ]
Mathlib/Analysis/SpecialFunctions/Trigonometric/Angle.lean
Real.Angle.sign_zero
[ { "state_after": "no goals", "state_before": "⊢ sign 0 = 0", "tactic": "rw [sign, sin_zero, _root_.sign_zero]" } ]
[ 858, 40 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 857, 1 ]
Mathlib/GroupTheory/Congruence.lean
Con.le_def
[]
[ 425, 10 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 424, 1 ]
Mathlib/Data/Set/Intervals/Basic.lean
Set.Iio_ssubset_Iic_self
[]
[ 550, 32 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 549, 1 ]
Mathlib/Algebra/Module/LocalizedModule.lean
IsLocalizedModule.mk'_sub
[ { "state_after": "no goals", "state_before": "R : Type u_3\ninst✝¹² : CommRing R\nS : Submonoid R\nM✝ : Type ?u.865453\nM'✝ : Type ?u.865456\nM'' : Type ?u.865459\ninst✝¹¹ : AddCommMonoid M✝\ninst✝¹⁰ : AddCommMonoid M'✝\ninst✝⁹ : AddCommMonoid M''\ninst✝⁸ : Module R M✝\ninst✝⁷ : Module R M'✝\ninst✝⁶ : Modul...
[ 992, 56 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 989, 1 ]
Mathlib/Data/List/Nodup.lean
List.Nodup.take_eq_filter_mem
[ { "state_after": "no goals", "state_before": "α : Type u\nβ : Type v\nl l₁ l₂ : List α\nr : α → α → Prop\na b : α\ninst✝ : DecidableEq α\nn : ℕ\nx✝ : Nodup []\n⊢ take n [] = List.filter (fun x => decide (x ∈ take n [])) []", "tactic": "simp" }, { "state_after": "no goals", "state_before": "α...
[ 463, 70 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 453, 1 ]
Mathlib/Topology/ContinuousFunction/Basic.lean
map_continuousAt
[]
[ 64, 34 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 63, 1 ]
Mathlib/Analysis/Convex/Between.lean
affineSegment_image
[ { "state_after": "R : Type u_1\nV : Type u_2\nV' : Type u_4\nP : Type u_3\nP' : Type u_5\ninst✝⁶ : OrderedRing R\ninst✝⁵ : AddCommGroup V\ninst✝⁴ : Module R V\ninst✝³ : AddTorsor V P\ninst✝² : AddCommGroup V'\ninst✝¹ : Module R V'\ninst✝ : AddTorsor V' P'\nf : P →ᵃ[R] P'\nx y : P\n⊢ (fun x_1 => ↑f (↑(lineMap x ...
[ 87, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 84, 1 ]
Mathlib/Algebra/Ring/Divisibility.lean
two_dvd_bit0
[]
[ 39, 25 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 38, 1 ]
Mathlib/RingTheory/Ideal/QuotientOperations.lean
Ideal.Quotient.mk_algebraMap
[]
[ 225, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 223, 1 ]
Mathlib/Data/Real/EReal.lean
EReal.le_coe_toReal
[ { "state_after": "case pos\nx : EReal\nh : x ≠ ⊤\nh' : x = ⊥\n⊢ x ≤ ↑(toReal x)\n\ncase neg\nx : EReal\nh : x ≠ ⊤\nh' : ¬x = ⊥\n⊢ x ≤ ↑(toReal x)", "state_before": "x : EReal\nh : x ≠ ⊤\n⊢ x ≤ ↑(toReal x)", "tactic": "by_cases h' : x = ⊥" }, { "state_after": "no goals", "state_before": "case...
[ 421, 41 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 418, 1 ]
src/lean/Init/Data/Nat/Basic.lean
Nat.repeat_eq_repeatTR
[ { "state_after": "no goals", "state_before": "α : Type u_1\nf : α → α\nn✝ : Nat\ninit : α\nn : Nat\n⊢ repeatTR.loop f 0 (repeat f n init) = repeat f (0 + n) init", "tactic": "simp [repeatTR.loop]" }, { "state_after": "α : Type u_1\nf : α → α\nn✝ : Nat\ninit : α\nm n : Nat\n⊢ repeatTR.loop f m (f...
[ 765, 16 ]
d5348dfac847a56a4595fb6230fd0708dcb4e7e9
https://github.com/leanprover/lean4
[ 760, 10 ]
Mathlib/Topology/Connected.lean
connectedComponents_preimage_singleton
[ { "state_after": "case h\nα : Type u\nβ : Type v\nι : Type ?u.142810\nπ : ι → Type ?u.142815\ninst✝² : TopologicalSpace α\ns t u v : Set α\ninst✝¹ : TopologicalSpace β\ninst✝ : TotallyDisconnectedSpace β\nf : α → β\nx y : α\n⊢ y ∈ ConnectedComponents.mk ⁻¹' {ConnectedComponents.mk x} ↔ y ∈ connectedComponent x"...
[ 1533, 72 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1530, 1 ]
Mathlib/Data/List/Basic.lean
List.getLast?_append
[ { "state_after": "case nil\nι : Type ?u.41156\nα : Type u\nβ : Type v\nγ : Type w\nδ : Type x\nl₁✝ l₂ l₁ : List α\nx : α\nh : x ∈ getLast? []\n⊢ x ∈ getLast? (l₁ ++ [])\n\ncase cons\nι : Type ?u.41156\nα : Type u\nβ : Type v\nγ : Type w\nδ : Type x\nl₁✝ l₂ l₁ : List α\nx head✝ : α\ntail✝ : List α\nh : x ∈ getLa...
[ 855, 12 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 850, 1 ]
Mathlib/NumberTheory/Padics/Hensel.lean
deriv_norm_pos
[]
[ 121, 70 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 120, 9 ]
Mathlib/CategoryTheory/Sites/Subsheaf.lean
CategoryTheory.GrothendieckTopology.Subpresheaf.isSheaf_iff
[ { "state_after": "C : Type u\ninst✝ : Category C\nJ : GrothendieckTopology C\nF F' F'' : Cᵒᵖ ⥤ Type w\nG G' : Subpresheaf F\nh : Presieve.IsSheaf J F\n⊢ G = sheafify J G ↔ ∀ (U : Cᵒᵖ) (s : F.obj U), sieveOfSection G s ∈ sieves J U.unop → s ∈ obj G U", "state_before": "C : Type u\ninst✝ : Category C\nJ : Gro...
[ 270, 44 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 265, 1 ]
Mathlib/Topology/FiberBundle/Trivialization.lean
Pretrivialization.symm_proj_apply
[ { "state_after": "no goals", "state_before": "ι : Type ?u.16241\nB : Type u_1\nF : Type u_2\nE : B → Type u_3\nZ : Type ?u.16255\ninst✝² : TopologicalSpace B\ninst✝¹ : TopologicalSpace F\nproj : Z → B\ne✝ : Pretrivialization F proj\nx : Z\ne' : Pretrivialization F TotalSpace.proj\nx' : TotalSpace E\nb : B\n...
[ 281, 101 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 279, 1 ]
src/lean/Init/Data/List/Basic.lean
List.reverse_cons
[ { "state_after": "α : Type u\nβ : Type v\nγ : Type w\na : α\nas : List α\n⊢ reverseAux as (a :: nil) = reverseAux as nil ++ a :: nil", "state_before": "α : Type u\nβ : Type v\nγ : Type w\na : α\nas : List α\n⊢ reverse (a :: as) = reverse as ++ a :: nil", "tactic": "simp [reverse, reverseAux]" }, { ...
[ 176, 30 ]
d5348dfac847a56a4595fb6230fd0708dcb4e7e9
https://github.com/leanprover/lean4
[ 174, 9 ]
Mathlib/RingTheory/AlgebraTower.lean
linearIndependent_smul
[ { "state_after": "R : Type u\nS : Type v\nA : Type w\nB : Type u₁\ninst✝⁶ : CommSemiring R\ninst✝⁵ : Semiring S\ninst✝⁴ : AddCommMonoid A\ninst✝³ : Algebra R S\ninst✝² : Module S A\ninst✝¹ : Module R A\ninst✝ : IsScalarTower R S A\nι : Type v₁\nb : ι → S\nι' : Type w₁\nc : ι' → A\nhb : ∀ (s : Finset ι) (g : ι →...
[ 132, 17 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 119, 1 ]
Mathlib/MeasureTheory/Measure/OuterMeasure.lean
MeasureTheory.OuterMeasure.trim_sum_ge
[ { "state_after": "α : Type u_2\ninst✝ : MeasurableSpace α\nm✝ : OuterMeasure α\nι : Type u_1\nm : ι → OuterMeasure α\ns : Set α\n⊢ ∀ (i : Set α),\n s ⊆ i →\n MeasurableSet i →\n (∑' (i : ι), ⨅ (t : Set α) (_ : s ⊆ t) (_ : MeasurableSet t), ↑(m i) t) ≤ ∑' (i_3 : ι), ↑(m i_3) i", "state_before"...
[ 1687, 88 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1683, 1 ]
Mathlib/CategoryTheory/Monoidal/Linear.lean
CategoryTheory.monoidalLinearOfFaithful
[ { "state_after": "R : Type u_3\ninst✝¹⁴ : Semiring R\nC : Type u_5\ninst✝¹³ : Category C\ninst✝¹² : Preadditive C\ninst✝¹¹ : Linear R C\ninst✝¹⁰ : MonoidalCategory C\ninst✝⁹ : MonoidalPreadditive C\ninst✝⁸ : MonoidalLinear R C\nD : Type u_1\ninst✝⁷ : Category D\ninst✝⁶ : Preadditive D\ninst✝⁵ : Linear R D\ninst...
[ 75, 74 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 63, 1 ]
Mathlib/Geometry/Euclidean/Angle/Unoriented/Affine.lean
EuclideanGeometry.angle_vsub_const
[]
[ 94, 76 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 93, 1 ]
Mathlib/Topology/UniformSpace/Equicontinuity.lean
UniformInducing.equicontinuous_iff
[ { "state_after": "ι : Type u_3\nκ : Type ?u.130426\nX : Type u_4\nY : Type ?u.130432\nZ : Type ?u.130435\nα : Type u_1\nβ : Type u_2\nγ : Type ?u.130444\n𝓕 : Type ?u.130447\ninst✝⁵ : TopologicalSpace X\ninst✝⁴ : TopologicalSpace Y\ninst✝³ : TopologicalSpace Z\ninst✝² : UniformSpace α\ninst✝¹ : UniformSpace β\n...
[ 355, 70 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 350, 1 ]
Mathlib/Init/Logic.lean
and_assoc'
[]
[ 131, 90 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 131, 25 ]
Mathlib/LinearAlgebra/AffineSpace/Midpoint.lean
AffineMap.map_midpoint
[]
[ 56, 24 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 54, 1 ]
Mathlib/SetTheory/Game/PGame.lean
PGame.Lf.not_equiv
[]
[ 788, 85 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 788, 1 ]
Mathlib/Order/Antichain.lean
IsAntichain.preimage_iso_iff
[]
[ 185, 83 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 183, 1 ]
Mathlib/NumberTheory/Padics/PadicNumbers.lean
PadicSeq.eq_zero_iff_equiv_zero
[]
[ 302, 8 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 301, 1 ]
Mathlib/Algebra/Category/ModuleCat/Kernels.lean
ModuleCat.cokernel_π_cokernelIsoRangeQuotient_hom
[ { "state_after": "no goals", "state_before": "R : Type u\ninst✝ : Ring R\nG H : ModuleCat R\nf : G ⟶ H\n⊢ cokernel.π f ≫ (cokernelIsoRangeQuotient f).hom = Submodule.mkQ (LinearMap.range f)", "tactic": "convert colimit.isoColimitCocone_ι_hom (F := parallelPair f 0) _ _" } ]
[ 131, 69 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 128, 1 ]
Mathlib/Algebra/CovariantAndContravariant.lean
contravariant_lt_of_contravariant_le
[ { "state_after": "M : Type u_2\nN : Type u_1\nμ : M → N → N\nr : N → N → Prop\ninst✝ : PartialOrder N\nh : Contravariant M N μ fun x x_1 => x ≤ x_1\na : M\nb c : N\nbc : (fun x x_1 => x < x_1) (μ a b) (μ a c)\n⊢ b ≠ c", "state_before": "M : Type u_2\nN : Type u_1\nμ : M → N → N\nr : N → N → Prop\ninst✝ : Pa...
[ 297, 35 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 294, 1 ]
Mathlib/RingTheory/WittVector/Defs.lean
WittVector.wittZero_eq_zero
[ { "state_after": "case a\np : ℕ\nR : Type ?u.41310\nhp : Fact (Nat.Prime p)\ninst✝ : CommRing R\nn : ℕ\n⊢ ↑(map (Int.castRingHom ℚ)) (wittZero p n) = ↑(map (Int.castRingHom ℚ)) 0", "state_before": "p : ℕ\nR : Type ?u.41310\nhp : Fact (Nat.Prime p)\ninst✝ : CommRing R\nn : ℕ\n⊢ wittZero p n = 0", "tactic...
[ 236, 61 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 233, 1 ]
Mathlib/Data/List/Card.lean
List.equiv_iff_subset_and_subset
[]
[ 24, 36 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 21, 1 ]
Mathlib/Data/FunLike/Basic.lean
FunLike.ext
[]
[ 180, 36 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 179, 1 ]
Mathlib/LinearAlgebra/Matrix/IsDiag.lean
Matrix.IsDiag.fromBlocks
[ { "state_after": "case inl.inl\nα : Type u_1\nβ : Type ?u.22045\nR : Type ?u.22048\nn : Type u_3\nm : Type u_2\ninst✝ : Zero α\nA : Matrix m m α\nD : Matrix n n α\nha : IsDiag A\nhd : IsDiag D\ni j : m\nhij : Sum.inl i ≠ Sum.inl j\n⊢ Matrix.fromBlocks A 0 0 D (Sum.inl i) (Sum.inl j) = 0\n\ncase inl.inr\nα : Typ...
[ 168, 36 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 162, 1 ]
Mathlib/LinearAlgebra/BilinearForm.lean
BilinForm.toLin'_apply
[]
[ 416, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 415, 1 ]
Mathlib/Analysis/Convex/Strict.lean
strictConvex_iff_ordConnected
[]
[ 446, 56 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 445, 1 ]
Mathlib/Algebra/Quaternion.lean
Quaternion.coe_rat_cast
[]
[ 1376, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1375, 1 ]
Mathlib/Order/Basic.lean
Ne.lt_of_le'
[]
[ 108, 23 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 107, 1 ]
Mathlib/Topology/Instances/NNReal.lean
NNReal.comap_coe_atTop
[]
[ 117, 78 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 117, 1 ]
Mathlib/Data/Stream/Init.lean
Stream'.corec_eq
[ { "state_after": "α : Type u\nβ : Type v\nδ : Type w\nf : α → β\ng : α → α\na : α\n⊢ f a :: map f (iterate g (g a)) = f a :: corec f g (g a)", "state_before": "α : Type u\nβ : Type v\nδ : Type w\nf : α → β\ng : α → α\na : α\n⊢ corec f g a = f a :: corec f g (g a)", "tactic": "rw [corec_def, map_eq, head...
[ 379, 58 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 378, 1 ]
Mathlib/RingTheory/Ideal/Quotient.lean
Ideal.exists_sub_mem
[ { "state_after": "case intro\nR : Type u\ninst✝¹ : CommRing R\nI : Ideal R\na b : R\nS ι : Type v\ninst✝ : Finite ι\nf : ι → Ideal R\nhf : ∀ (i j : ι), i ≠ j → f i ⊔ f j = ⊤\ng : ι → R\nval✝ : Fintype ι\n⊢ ∃ r, ∀ (i : ι), r - g i ∈ f i", "state_before": "R : Type u\ninst✝¹ : CommRing R\nI : Ideal R\na b : R...
[ 469, 37 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 449, 1 ]
Mathlib/Data/Nat/Prime.lean
Nat.prime_def_lt''
[ { "state_after": "p : ℕ\nh : 2 ≤ p ∧ ∀ (m : ℕ), m ∣ p → m = 1 ∨ m = p\n⊢ Prime p", "state_before": "p : ℕ\n⊢ Prime p ↔ 2 ≤ p ∧ ∀ (m : ℕ), m ∣ p → m = 1 ∨ m = p", "tactic": "refine' ⟨fun h => ⟨h.two_le, h.eq_one_or_self_of_dvd⟩, fun h => _⟩" }, { "state_after": "p : ℕ\nh : 2 ≤ p ∧ ∀ (m : ℕ), m ∣ ...
[ 111, 28 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 101, 1 ]
Mathlib/Data/List/Infix.lean
List.prefix_take_le_iff
[ { "state_after": "α : Type u_1\nβ : Type ?u.24410\nl l₁ l₂ l₃ : List α\na b : α\nm n : ℕ\nL : List (List (Option α))\nhm : m < length L\n⊢ take m L = take (min m (length L)) (take n L) ↔ m ≤ n", "state_before": "α : Type u_1\nβ : Type ?u.24410\nl l₁ l₂ l₃ : List α\na b : α\nm n : ℕ\nL : List (List (Option α...
[ 271, 57 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 252, 1 ]
Mathlib/Order/Monotone/Basic.lean
Monotone.comp_antitone
[]
[ 641, 24 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 640, 1 ]
src/lean/Init/Data/Nat/Basic.lean
Nat.right_distrib
[ { "state_after": "n m k : Nat\n⊢ k * n + k * m = n * k + m * k", "state_before": "n m k : Nat\n⊢ (n + m) * k = n * k + m * k", "tactic": "rw [Nat.mul_comm, Nat.left_distrib]" }, { "state_after": "no goals", "state_before": "n m k : Nat\n⊢ k * n + k * m = n * k + m * k", "tactic": "simp [...
[ 190, 59 ]
d5348dfac847a56a4595fb6230fd0708dcb4e7e9
https://github.com/leanprover/lean4
[ 189, 11 ]
Mathlib/Data/List/Basic.lean
List.getD_append_right
[ { "state_after": "case inl\nι : Type ?u.503527\nα : Type u\nβ : Type v\nγ : Type w\nδ : Type x\nl₁ l₂ l✝ : List α\nx : α\nxs : List α\nd✝ : α\nn✝ : ℕ\nl l' : List α\nd : α\nn : ℕ\nh : length l ≤ n\nh' : n < length (l ++ l')\n⊢ getD (l ++ l') n d = getD l' (n - length l) d\n\ncase inr\nι : Type ?u.503527\nα : Ty...
[ 4441, 46 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 4433, 1 ]
Mathlib/Combinatorics/SimpleGraph/Connectivity.lean
SimpleGraph.Walk.eq_of_length_eq_zero
[]
[ 426, 18 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 425, 1 ]
Mathlib/CategoryTheory/Abelian/Basic.lean
CategoryTheory.Abelian.OfCoimageImageComparisonIsIso.imageMonoFactorisation_e'
[ { "state_after": "case h\nC : Type u\ninst✝³ : Category C\ninst✝² : Preadditive C\ninst✝¹ : HasKernels C\ninst✝ : HasCokernels C\nX Y : C\nf : X ⟶ Y\n⊢ (imageMonoFactorisation f).e ≫ equalizer.ι (cokernel.π f) 0 =\n (cokernel.π (kernel.ι f) ≫ coimageImageComparison f) ≫ equalizer.ι (cokernel.π f) 0", "st...
[ 155, 27 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 151, 1 ]
Mathlib/Algebra/GroupWithZero/Units/Lemmas.lean
div_eq_div_iff
[]
[ 190, 44 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 189, 1 ]
Mathlib/CategoryTheory/Iso.lean
CategoryTheory.Functor.mapIso_trans
[ { "state_after": "case w\nC : Type u\ninst✝¹ : Category C\nX✝ Y✝ Z✝ : C\nD : Type u₂\ninst✝ : Category D\nF : C ⥤ D\nX Y Z : C\ni : X ≅ Y\nj : Y ≅ Z\n⊢ (F.mapIso (i ≪≫ j)).hom = (F.mapIso i ≪≫ F.mapIso j).hom", "state_before": "C : Type u\ninst✝¹ : Category C\nX✝ Y✝ Z✝ : C\nD : Type u₂\ninst✝ : Category D\n...
[ 609, 33 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 607, 1 ]
Mathlib/Algebra/GCDMonoid/Basic.lean
lcm_comm
[]
[ 746, 53 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 743, 1 ]
Mathlib/LinearAlgebra/Matrix/Transvection.lean
Matrix.TransvectionStruct.sumInl_toMatrix_prod_mul
[ { "state_after": "case nil\nn : Type u_1\np : Type u_2\nR : Type u₂\n𝕜 : Type ?u.60874\ninst✝⁵ : Field 𝕜\ninst✝⁴ : DecidableEq n\ninst✝³ : DecidableEq p\ninst✝² : CommRing R\ni j : n\ninst✝¹ : Fintype n\ninst✝ : Fintype p\nM : Matrix n n R\nN : Matrix p p R\n⊢ List.prod (List.map (toMatrix ∘ sumInl p) []) ⬝ f...
[ 273, 70 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 267, 1 ]
Mathlib/Data/Nat/Choose/Basic.lean
Nat.multichoose_succ_succ
[ { "state_after": "no goals", "state_before": "n k : ℕ\n⊢ multichoose (n + 1) (k + 1) = multichoose n (k + 1) + multichoose (n + 1) k", "tactic": "simp [multichoose]" } ]
[ 373, 21 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 371, 1 ]
Mathlib/Analysis/Asymptotics/Asymptotics.lean
Asymptotics.isBigO_principal
[ { "state_after": "α : Type u_1\nβ : Type ?u.290106\nE : Type u_2\nF : Type u_3\nG : Type ?u.290115\nE' : Type ?u.290118\nF' : Type ?u.290121\nG' : Type ?u.290124\nE'' : Type ?u.290127\nF'' : Type ?u.290130\nG'' : Type ?u.290133\nR : Type ?u.290136\nR' : Type ?u.290139\n𝕜 : Type ?u.290142\n𝕜' : Type ?u.290145\...
[ 1300, 23 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1299, 1 ]
Mathlib/Algebra/Order/Ring/Lemmas.lean
mulPosMono_iff_mulPosReflectLT
[]
[ 324, 81 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 323, 1 ]
Mathlib/Algebra/Category/GroupCat/Injective.lean
AddCommGroupCat.injective_as_module_of_injective_as_Ab
[ { "state_after": "A : Type u\ninst✝¹ : AddCommGroup A\ninst✝ : Injective (Bundled.mk A)\nX Y : ModuleCat ℤ\ng : X ⟶ ModuleCat.mk A\nf : X ⟶ Y\nm : Mono f\nG : Bundled.mk ↑X ⟶ Bundled.mk A := LinearMap.toAddMonoidHom g\n⊢ ∃ h, f ≫ h = g", "state_before": "A : Type u\ninst✝¹ : AddCommGroup A\ninst✝ : Injectiv...
[ 109, 19 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 74, 1 ]
Mathlib/Topology/Instances/AddCircle.lean
AddCircle.continuous_mk'
[]
[ 204, 27 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 202, 11 ]
Mathlib/Data/Finset/Image.lean
Finset.map_union
[ { "state_after": "no goals", "state_before": "α : Type u_1\nβ : Type u_2\nγ : Type ?u.37468\nf✝ : α ↪ β\ns : Finset α\ninst✝¹ : DecidableEq α\ninst✝ : DecidableEq β\nf : α ↪ β\ns₁ s₂ : Finset α\n⊢ ↑(map f (s₁ ∪ s₂)) = ↑(map f s₁ ∪ map f s₂)", "tactic": "simp only [coe_map, coe_union, Set.image_union]" ...
[ 214, 70 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 212, 1 ]
Mathlib/Topology/ContinuousOn.lean
Embedding.map_nhdsWithin_eq
[ { "state_after": "no goals", "state_before": "α : Type u_1\nβ : Type u_2\nγ : Type ?u.360626\nδ : Type ?u.360629\ninst✝³ : TopologicalSpace α\ninst✝² : TopologicalSpace β\ninst✝¹ : TopologicalSpace γ\ninst✝ : TopologicalSpace δ\nf : α → β\nhf : _root_.Embedding f\ns : Set α\nx : α\n⊢ map f (𝓝[s] x) = 𝓝[f ...
[ 1088, 60 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1085, 1 ]
Mathlib/Analysis/Calculus/Deriv/Polynomial.lean
Polynomial.hasDerivAt_aeval
[]
[ 90, 42 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 88, 11 ]
Mathlib/CategoryTheory/Subobject/Basic.lean
CategoryTheory.Subobject.mk_le_mk_of_comm
[]
[ 258, 23 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 256, 1 ]
Mathlib/Data/Set/Pointwise/Basic.lean
Set.div_iUnion₂
[]
[ 780, 29 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 778, 1 ]
Mathlib/Data/Matrix/Basic.lean
Matrix.submatrix_updateRow_equiv
[ { "state_after": "no goals", "state_before": "l : Type u_1\nm : Type u_2\nn : Type u_3\no : Type u_4\nm' : o → Type ?u.1237018\nn' : o → Type ?u.1237023\nR : Type ?u.1237026\nS : Type ?u.1237029\nα : Type v\nβ : Type w\nγ : Type ?u.1237036\nM : Matrix m n α\ni✝ : m\nj : n\nb : n → α\nc : m → α\ninst✝¹ : Dec...
[ 2884, 92 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 2881, 1 ]
Mathlib/Algebra/Algebra/Operations.lean
Submodule.le_self_mul_one_div
[ { "state_after": "ι : Sort uι\nR : Type u\ninst✝² : CommSemiring R\nA : Type v\ninst✝¹ : CommSemiring A\ninst✝ : Algebra R A\nM N : Submodule R A\nm n : A\nI : Submodule R A\nhI : I ≤ 1\n⊢ I * 1 ≤ I * (1 / I)", "state_before": "ι : Sort uι\nR : Type u\ninst✝² : CommSemiring R\nA : Type v\ninst✝¹ : CommSemir...
[ 717, 49 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 715, 1 ]
Mathlib/Order/Bounds/Basic.lean
IsLUB.unique
[]
[ 1089, 23 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1088, 1 ]
Mathlib/Order/Heyting/Hom.lean
HeytingHom.coe_comp
[]
[ 334, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 333, 1 ]
Mathlib/Data/List/Cycle.lean
Cycle.reverse_nil
[]
[ 568, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 567, 1 ]
Mathlib/MeasureTheory/MeasurableSpace.lean
MeasurableSet.measurableSet_blimsup
[ { "state_after": "α : Type u_1\nβ : Type ?u.909833\nγ : Type ?u.909836\nδ : Type ?u.909839\nδ' : Type ?u.909842\nι : Sort uι\ns✝ t u : Set α\ninst✝ : MeasurableSpace α\ns : ℕ → Set α\np : ℕ → Prop\nh : ∀ (n : ℕ), p n → MeasurableSet (s n)\n⊢ MeasurableSet (⋂ (i : ℕ), ⋃ (j : ℕ) (_ : p j ∧ i ≤ j), s j)", "sta...
[ 1894, 69 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1891, 1 ]
Mathlib/Analysis/BoxIntegral/Partition/Basic.lean
BoxIntegral.Prepartition.le_of_mem
[]
[ 95, 20 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 94, 1 ]
Mathlib/Order/PrimeIdeal.lean
Order.Ideal.PrimePair.F_union_I
[]
[ 87, 33 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 86, 1 ]
Mathlib/Analysis/SpecificLimits/Basic.lean
NNReal.hasSum_geometric
[ { "state_after": "α : Type ?u.248624\nβ : Type ?u.248627\nι : Type ?u.248630\nr : ℝ≥0\nhr : r < 1\n⊢ HasSum (fun a => ↑(r ^ a)) ↑(1 - r)⁻¹", "state_before": "α : Type ?u.248624\nβ : Type ?u.248627\nι : Type ?u.248630\nr : ℝ≥0\nhr : r < 1\n⊢ HasSum (fun n => r ^ n) (1 - r)⁻¹", "tactic": "apply NNReal.has...
[ 266, 49 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 262, 1 ]
Mathlib/Combinatorics/Quiver/SingleObj.lean
Quiver.SingleObj.pathEquivList_cons
[]
[ 164, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 162, 1 ]
Mathlib/GroupTheory/Subsemigroup/Operations.lean
Subsemigroup.map_comap_eq_of_surjective
[]
[ 459, 27 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 458, 1 ]
Mathlib/Topology/MetricSpace/Basic.lean
comap_dist_right_atTop_le_cocompact
[ { "state_after": "α : Type u\nβ : Type v\nX : Type ?u.546057\nι : Type ?u.546060\ninst✝ : PseudoMetricSpace α\nx : α\ns : Set α\nhs : IsCompact s\n⊢ ∃ t, t ∈ atTop ∧ (fun y => dist y x) ⁻¹' t ⊆ sᶜ", "state_before": "α : Type u\nβ : Type v\nX : Type ?u.546057\nι : Type ?u.546060\ninst✝ : PseudoMetricSpace α\...
[ 2796, 89 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 2792, 1 ]
Mathlib/GroupTheory/Perm/Cycle/Basic.lean
Equiv.Perm.pow_apply_eq_pow_mod_orderOf_cycleOf_apply
[ { "state_after": "no goals", "state_before": "ι : Type ?u.2444696\nα : Type u_1\nβ : Type ?u.2444702\ninst✝¹ : DecidableEq α\ninst✝ : Fintype α\nf✝ g : Perm α\nx✝ y : α\nf : Perm α\nn : ℕ\nx : α\n⊢ ↑(f ^ n) x = ↑(f ^ (n % orderOf (cycleOf f x))) x", "tactic": "rw [← cycleOf_pow_apply_self f, ← cycleOf_p...
[ 1111, 82 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1109, 1 ]