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start
list
Mathlib/Data/Set/Basic.lean
Set.mem_diff_of_mem
[]
[ 1800, 11 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1799, 1 ]
Mathlib/Combinatorics/Additive/SalemSpencer.lean
Set.Subsingleton.mulSalemSpencer
[]
[ 92, 34 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 91, 1 ]
Mathlib/RingTheory/Ideal/Operations.lean
Ideal.mul_eq_inf_of_coprime
[]
[ 677, 101 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 672, 1 ]
Mathlib/NumberTheory/ArithmeticFunction.lean
Nat.ArithmeticFunction.isMultiplicative_moebius
[ { "state_after": "R : Type ?u.592093\n⊢ ↑μ 1 = 1 ∧ ∀ {m n : ℕ}, m ≠ 0 → n ≠ 0 → coprime m n → ↑μ (m * n) = ↑μ m * ↑μ n", "state_before": "R : Type ?u.592093\n⊢ IsMultiplicative μ", "tactic": "rw [IsMultiplicative.iff_ne_zero]" }, { "state_after": "R : Type ?u.592093\nn m : ℕ\nhn : n ≠ 0\nhm : m ...
[ 1018, 7 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1003, 1 ]
Mathlib/RingTheory/Algebraic.lean
Algebra.isAlgebraic_of_finite
[]
[ 260, 68 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 259, 1 ]
Mathlib/MeasureTheory/Function/L1Space.lean
MeasureTheory.all_ae_ofReal_f_le_bound
[ { "state_after": "α : Type u_1\nβ : Type u_2\nγ : Type ?u.736386\nδ : Type ?u.736389\nm : MeasurableSpace α\nμ ν : Measure α\ninst✝² : MeasurableSpace δ\ninst✝¹ : NormedAddCommGroup β\ninst✝ : NormedAddCommGroup γ\nF : ℕ → α → β\nf : α → β\nbound : α → ℝ\nh_bound : ∀ (n : ℕ), ∀ᵐ (a : α) ∂μ, ‖F n a‖ ≤ bound a\nh...
[ 303, 47 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 296, 1 ]
Mathlib/Topology/MetricSpace/Basic.lean
Metric.cauchySeq_iff
[]
[ 1502, 38 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1500, 1 ]
Mathlib/Algebra/Polynomial/BigOperators.lean
Polynomial.leadingCoeff_multiset_prod'
[ { "state_after": "case empty\nR : Type u\nι : Type w\ns : Finset ι\ninst✝ : CommSemiring R\nf : ι → R[X]\nt : Multiset R[X]\nh✝ : prod (Multiset.map leadingCoeff t) ≠ 0\nh : prod (Multiset.map leadingCoeff 0) ≠ 0\n⊢ leadingCoeff (prod 0) = prod (Multiset.map leadingCoeff 0)\n\ncase cons\nR : Type u\nι : Type w\...
[ 151, 35 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 144, 1 ]
Mathlib/Topology/MetricSpace/Basic.lean
Metric.diam_nonneg
[]
[ 2582, 24 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 2581, 1 ]
Mathlib/Combinatorics/Composition.lean
Composition.single_length
[]
[ 578, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 577, 1 ]
Mathlib/Data/TypeVec.lean
TypeVec.repeatEq_iff_eq
[ { "state_after": "case fz\nn : ℕ\nα✝ : TypeVec n\ni : Fin2 n\nx✝ y✝ : α✝ i\nn✝ : ℕ\nα : TypeVec (succ n✝)\nx y : α Fin2.fz\n⊢ ofRepeat (repeatEq α Fin2.fz (prod.mk Fin2.fz x y)) ↔ x = y\n\ncase fs\nn : ℕ\nα✝ : TypeVec n\ni : Fin2 n\nx✝ y✝ : α✝ i\nn✝ : ℕ\na✝ : Fin2 n✝\ni_ih : ∀ {α : TypeVec n✝} {x y : α a✝}, ofR...
[ 600, 23 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 596, 1 ]
Mathlib/Topology/Instances/ENNReal.lean
ENNReal.sub_iSup
[]
[ 682, 89 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 680, 1 ]
Mathlib/LinearAlgebra/TensorProduct.lean
TensorProduct.zero_tmul
[]
[ 137, 64 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 136, 1 ]
Mathlib/Analysis/Asymptotics/Asymptotics.lean
Filter.EventuallyEq.trans_isBigO
[]
[ 373, 36 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 371, 1 ]
Mathlib/Analysis/SpecialFunctions/Pow/Real.lean
Real.inv_rpow
[ { "state_after": "no goals", "state_before": "x y✝ z : ℝ\nhx : 0 ≤ x\ny : ℝ\n⊢ x⁻¹ ^ y = (x ^ y)⁻¹", "tactic": "simp only [← rpow_neg_one, ← rpow_mul hx, mul_comm]" } ]
[ 397, 54 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 396, 1 ]
Mathlib/CategoryTheory/Opposites.lean
Quiver.Hom.op_unop
[]
[ 60, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 59, 1 ]
Mathlib/MeasureTheory/Measure/Haar/Basic.lean
MeasureTheory.Measure.haar.prehaar_mono
[ { "state_after": "G : Type u_1\ninst✝² : Group G\ninst✝¹ : TopologicalSpace G\ninst✝ : TopologicalGroup G\nK₀ : PositiveCompacts G\nU : Set G\nhU : Set.Nonempty (interior U)\nK₁ K₂ : Compacts G\nh : ↑K₁ ⊆ K₂.carrier\n⊢ ↑(index (↑K₁) U) / ↑(index (↑K₀) U) ≤ ↑(index (↑K₂) U) / ↑(index (↑K₀) U)", "state_before...
[ 323, 33 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 319, 1 ]
Mathlib/Analysis/BoxIntegral/Box/Basic.lean
BoxIntegral.Box.disjoint_coe
[]
[ 381, 27 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 380, 1 ]
Mathlib/LinearAlgebra/Matrix/GeneralLinearGroup.lean
Matrix.SpecialLinearGroup.toGLPos_injective
[]
[ 269, 34 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 263, 1 ]
Mathlib/Data/Set/Pointwise/SMul.lean
Set.smul_subset_smul_left
[]
[ 177, 21 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 176, 1 ]
Mathlib/NumberTheory/Multiplicity.lean
dvd_geom_sum₂_self
[]
[ 59, 59 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 57, 1 ]
Mathlib/MeasureTheory/Constructions/BorelSpace/Basic.lean
measurable_of_Ioi
[ { "state_after": "case h.e'_4\nα : Type u_2\nβ : Type ?u.1082874\nγ : Type ?u.1082877\nγ₂ : Type ?u.1082880\nδ : Type u_1\nι : Sort y\ns t u : Set α\ninst✝¹² : TopologicalSpace α\ninst✝¹¹ : MeasurableSpace α\ninst✝¹⁰ : BorelSpace α\ninst✝⁹ : TopologicalSpace β\ninst✝⁸ : MeasurableSpace β\ninst✝⁷ : BorelSpace β\...
[ 1055, 32 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1052, 1 ]
Mathlib/NumberTheory/Zsqrtd/Basic.lean
Zsqrtd.norm_eq_one_iff'
[ { "state_after": "no goals", "state_before": "d✝ d : ℤ\nhd : d ≤ 0\nz : ℤ√d\n⊢ norm z = 1 ↔ IsUnit z", "tactic": "rw [← norm_eq_one_iff, ← Int.coe_nat_inj', Int.natAbs_of_nonneg (norm_nonneg hd z), Int.ofNat_one]" } ]
[ 608, 101 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 607, 1 ]
Mathlib/Data/Matrix/Basic.lean
Matrix.conjTranspose_inv_natCast_smul
[ { "state_after": "no goals", "state_before": "l : Type ?u.1009478\nm : Type u_2\nn : Type u_3\no : Type ?u.1009487\nm' : o → Type ?u.1009492\nn' : o → Type ?u.1009497\nR : Type u_1\nS : Type ?u.1009503\nα : Type v\nβ : Type w\nγ : Type ?u.1009510\ninst✝³ : DivisionSemiring R\ninst✝² : AddCommMonoid α\ninst✝...
[ 2218, 24 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 2216, 1 ]
Mathlib/Data/Option/Defs.lean
Option.elim'_none
[]
[ 69, 74 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 69, 1 ]
Mathlib/MeasureTheory/MeasurableSpace.lean
Measurable.prod_map
[]
[ 683, 60 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 681, 1 ]
Mathlib/Data/List/Basic.lean
List.get_drop'
[ { "state_after": "no goals", "state_before": "ι : Type ?u.213709\nα : Type u\nβ : Type v\nγ : Type w\nδ : Type x\nl₁ l₂ L : List α\ni : ℕ\nj : Fin (length (drop i L))\n⊢ get (drop i L) j = get L { val := i + ↑j, isLt := (_ : i + ↑j < length L) }", "tactic": "rw [get_drop]" } ]
[ 2229, 16 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 2227, 1 ]
Mathlib/Topology/MetricSpace/Basic.lean
Real.dist_le_of_mem_uIcc
[ { "state_after": "no goals", "state_before": "α : Type u\nβ : Type v\nX : Type ?u.195692\nι : Type ?u.195695\ninst✝ : PseudoMetricSpace α\nx y x' y' : ℝ\nhx : x ∈ uIcc x' y'\nhy : y ∈ uIcc x' y'\n⊢ y ∈ uIcc y' x'", "tactic": "rwa [uIcc_comm]" }, { "state_after": "no goals", "state_before": "...
[ 1376, 95 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1374, 1 ]
Mathlib/LinearAlgebra/FiniteDimensional.lean
LinearMap.linearEquivOfInjective_apply
[]
[ 1075, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1072, 1 ]
Mathlib/Data/Set/Prod.lean
Set.pi_subset_pi_iff
[ { "state_after": "ι : Type u_2\nα : ι → Type u_1\nβ : ι → Type ?u.155680\ns s₁ s₂ : Set ι\nt t₁ t₂ : (i : ι) → Set (α i)\ni : ι\nh : pi s t₁ ⊆ pi s t₂\n⊢ ¬pi s t₁ = ∅ → ∀ (i : ι), i ∈ s → t₁ i ⊆ t₂ i", "state_before": "ι : Type u_2\nα : ι → Type u_1\nβ : ι → Type ?u.155680\ns s₁ s₂ : Set ι\nt t₁ t₂ : (i : ι...
[ 829, 45 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 823, 1 ]
Mathlib/Analysis/Subadditive.lean
Subadditive.lim_le_div
[ { "state_after": "u : ℕ → ℝ\nh : Subadditive u\nhbdd : BddBelow (range fun n => u n / ↑n)\nn : ℕ\nhn : n ≠ 0\n⊢ sInf ((fun n => u n / ↑n) '' Ici 1) ≤ u n / ↑n", "state_before": "u : ℕ → ℝ\nh : Subadditive u\nhbdd : BddBelow (range fun n => u n / ↑n)\nn : ℕ\nhn : n ≠ 0\n⊢ Subadditive.lim h ≤ u n / ↑n", "...
[ 51, 75 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 48, 1 ]
Std/Data/Nat/Lemmas.lean
Nat.add_le_add_iff_le_right
[]
[ 71, 66 ]
e68aa8f5fe47aad78987df45f99094afbcb5e936
https://github.com/leanprover/std4
[ 70, 11 ]
Mathlib/Probability/CondCount.lean
ProbabilityTheory.condCount_empty
[ { "state_after": "no goals", "state_before": "Ω : Type u_1\ninst✝ : MeasurableSpace Ω\ns : Set Ω\n⊢ ↑↑(condCount s) ∅ = 0", "tactic": "simp" } ]
[ 64, 67 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 64, 1 ]
Mathlib/Data/Finset/Basic.lean
Finset.ext
[]
[ 243, 12 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 242, 1 ]
Mathlib/LinearAlgebra/Matrix/Basis.lean
Basis.toMatrix_unitsSMul
[ { "state_after": "case a.h\nι : Type u_1\nι' : Type ?u.170437\nκ : Type ?u.170440\nκ' : Type ?u.170443\nR : Type ?u.170446\nM : Type ?u.170449\ninst✝⁶ : CommSemiring R\ninst✝⁵ : AddCommMonoid M\ninst✝⁴ : Module R M\nR₂ : Type u_2\nM₂ : Type u_3\ninst✝³ : CommRing R₂\ninst✝² : AddCommGroup M₂\ninst✝¹ : Module R₂...
[ 109, 73 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 104, 1 ]
Mathlib/GroupTheory/FreeAbelianGroup.lean
FreeAbelianGroup.induction_on'
[]
[ 203, 46 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 200, 11 ]
Mathlib/Data/ZMod/Basic.lean
ZMod.val_int_cast
[ { "state_after": "n : ℕ\na : ℤ\ninst✝ : NeZero n\nhle : 0 ≤ ↑(val ↑a)\n⊢ ↑(val ↑a) = a % ↑n", "state_before": "n : ℕ\na : ℤ\ninst✝ : NeZero n\n⊢ ↑(val ↑a) = a % ↑n", "tactic": "have hle : (0 : ℤ) ≤ ↑(a : ZMod n).val := Int.coe_nat_nonneg _" }, { "state_after": "n : ℕ\na : ℤ\ninst✝ : NeZero n\nhl...
[ 490, 89 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 486, 1 ]
Mathlib/Analysis/NormedSpace/IndicatorFunction.lean
indicator_norm_le_norm_self
[]
[ 44, 50 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 43, 1 ]
Mathlib/GroupTheory/MonoidLocalization.lean
Submonoid.LocalizationMap.ofMulEquivOfLocalizations_comp
[ { "state_after": "case h\nM : Type u_4\ninst✝³ : CommMonoid M\nS : Submonoid M\nN : Type u_1\ninst✝² : CommMonoid N\nP : Type u_2\ninst✝¹ : CommMonoid P\nf : LocalizationMap S N\ng : M →* P\nhg : ∀ (y : { x // x ∈ S }), IsUnit (↑g ↑y)\nT : Submonoid P\nQ : Type u_3\ninst✝ : CommMonoid Q\nk : N ≃* P\nj : P ≃* Q\...
[ 1475, 15 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1472, 1 ]
Mathlib/SetTheory/Ordinal/Arithmetic.lean
Ordinal.ne_bmex
[ { "state_after": "no goals", "state_before": "case h.e'_2.h.e'_1\nα : Type ?u.383183\nβ : Type ?u.383186\nγ : Type ?u.383189\nr : α → α → Prop\ns : β → β → Prop\nt : γ → γ → Prop\no : Ordinal\nf : (a : Ordinal) → a < o → Ordinal\ni : Ordinal\nhi : i < o\n⊢ i = typein (fun x x_1 => x < x_1) (enum (fun x x_1 ...
[ 2087, 19 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 2082, 1 ]
Mathlib/MeasureTheory/Measure/MeasureSpace.lean
MeasureTheory.uIoc_ae_eq_interval
[]
[ 3368, 16 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 3367, 1 ]
Mathlib/Init/Function.lean
Function.HasRightInverse.surjective
[]
[ 114, 29 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 113, 1 ]
Mathlib/Logic/Function/Iterate.lean
Function.iterate_add_apply
[ { "state_after": "α : Type u\nβ : Type v\nf : α → α\nm n : ℕ\nx : α\n⊢ (f^[m] ∘ f^[n]) x = (f^[m]) ((f^[n]) x)", "state_before": "α : Type u\nβ : Type v\nf : α → α\nm n : ℕ\nx : α\n⊢ (f^[m + n]) x = (f^[m]) ((f^[n]) x)", "tactic": "rw [iterate_add f m n]" }, { "state_after": "no goals", "sta...
[ 74, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 72, 1 ]
Mathlib/MeasureTheory/Integral/FundThmCalculus.lean
Continuous.deriv_integral
[]
[ 693, 54 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 691, 1 ]
Mathlib/Data/Set/Intervals/Basic.lean
Set.Icc_bot
[ { "state_after": "no goals", "state_before": "α : Type u_1\nβ : Type ?u.56497\ninst✝¹ : Preorder α\ninst✝ : OrderBot α\na : α\n⊢ Icc ⊥ a = Iic a", "tactic": "simp [← Ici_inter_Iic]" } ]
[ 1027, 63 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1027, 1 ]
Mathlib/ModelTheory/Semantics.lean
FirstOrder.Language.BoundedFormula.realize_rel₁
[ { "state_after": "L : Language\nL' : Language\nM : Type w\nN : Type ?u.54593\nP : Type ?u.54596\ninst✝² : Structure L M\ninst✝¹ : Structure L N\ninst✝ : Structure L P\nα : Type u'\nβ : Type v'\nn l : ℕ\nφ ψ : BoundedFormula L α l\nθ : BoundedFormula L α (Nat.succ l)\nv : α → M\nxs : Fin l → M\nR : Relations L 1...
[ 314, 38 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 310, 1 ]
Mathlib/Data/Matrix/Notation.lean
Matrix.vec3_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 a₂ b₀ b₁ b₂ : α\n⊢ ![a₀, a₁, a₂] + ![b₀, b₁, b₂] = ![a₀ + b₀, a₁ + b₁, a₂ + b₂]", "tactic": "rw [cons_add_cons, cons_add_cons, cons_add_cons, empty_add_empty]" }...
[ 476, 68 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 474, 1 ]
Mathlib/MeasureTheory/Integral/SetToL1.lean
MeasureTheory.setToFun_undef
[]
[ 1294, 13 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1292, 1 ]
Mathlib/Data/Polynomial/Degree/Definitions.lean
Polynomial.degree_erase_le
[ { "state_after": "case ofFinsupp\nR : Type u\nS : Type v\na b c d : R\nn✝ m : ℕ\ninst✝ : Semiring R\np✝ q : R[X]\nι : Type ?u.559926\nn : ℕ\np : AddMonoidAlgebra R ℕ\n⊢ degree (erase n { toFinsupp := p }) ≤ degree { toFinsupp := p }", "state_before": "R : Type u\nS : Type v\na b c d : R\nn✝ m : ℕ\ninst✝ : S...
[ 738, 28 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 732, 1 ]
Mathlib/Data/Polynomial/Expand.lean
Polynomial.coeff_expand_mul
[ { "state_after": "no goals", "state_before": "R : Type u\ninst✝¹ : CommSemiring R\nS : Type v\ninst✝ : CommSemiring S\np✝ q p : ℕ\nhp : 0 < p\nf : R[X]\nn : ℕ\n⊢ coeff (↑(expand R p) f) (n * p) = coeff f n", "tactic": "rw [coeff_expand hp, if_pos (dvd_mul_left _ _), Nat.mul_div_cancel _ hp]" } ]
[ 124, 75 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 122, 1 ]
Mathlib/Order/ConditionallyCompleteLattice/Basic.lean
ciInf_set_le
[]
[ 827, 35 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 825, 1 ]
Mathlib/Topology/Algebra/Field.lean
IsPreconnected.eq_one_or_eq_neg_one_of_sq_eq
[ { "state_after": "K : Type ?u.15846\ninst✝⁶ : DivisionRing K\ninst✝⁵ : TopologicalSpace K\nα : Type u_2\n𝕜 : Type u_1\nf g : α → 𝕜\nS : Set α\ninst✝⁴ : TopologicalSpace α\ninst✝³ : TopologicalSpace 𝕜\ninst✝² : T1Space 𝕜\ninst✝¹ : Ring 𝕜\ninst✝ : NoZeroDivisors 𝕜\nhS : IsPreconnected S\nhf : ContinuousOn f...
[ 138, 47 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 132, 1 ]
Mathlib/Topology/Instances/ENNReal.lean
ENNReal.ofReal_tsum_of_nonneg
[ { "state_after": "no goals", "state_before": "α : Type u_1\nβ : Type ?u.343113\nγ : Type ?u.343116\nf : α → ℝ\nhf_nonneg : ∀ (n : α), 0 ≤ f n\nhf : Summable f\n⊢ ENNReal.ofReal (∑' (n : α), f n) = ∑' (n : α), ENNReal.ofReal (f n)", "tactic": "simp_rw [ENNReal.ofReal, ENNReal.tsum_coe_eq (NNReal.hasSum_r...
[ 1319, 101 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1317, 1 ]
Mathlib/Data/MvPolynomial/Variables.lean
MvPolynomial.monomial_le_degreeOf
[ { "state_after": "R : Type u\nS : Type v\nσ : Type u_1\nτ : Type ?u.310239\nr : R\ne : ℕ\nn m✝ : σ\ns : σ →₀ ℕ\ninst✝ : CommSemiring R\np q : MvPolynomial σ R\ni : σ\nf : MvPolynomial σ R\nm : σ →₀ ℕ\nh_m : m ∈ support f\n⊢ ↑m i ≤ Finset.sup (support f) fun m => ↑m i", "state_before": "R : Type u\nS : Type ...
[ 542, 26 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 539, 1 ]
Mathlib/Algebra/Algebra/Subalgebra/Pointwise.lean
Subalgebra.smul_mem_pointwise_smul
[]
[ 113, 52 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 112, 1 ]
Mathlib/Algebra/Order/Ring/Abs.lean
abs_eq_iff_mul_self_eq
[ { "state_after": "α : Type u_1\ninst✝ : LinearOrderedRing α\na b c : α\n⊢ abs a = abs b ↔ abs a * abs a = abs b * abs b", "state_before": "α : Type u_1\ninst✝ : LinearOrderedRing α\na b c : α\n⊢ abs a = abs b ↔ a * a = b * b", "tactic": "rw [← abs_mul_abs_self, ← abs_mul_abs_self b]" }, { "state...
[ 88, 58 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 86, 1 ]
Mathlib/RingTheory/Finiteness.lean
Submodule.exists_mem_and_smul_eq_self_of_fg_of_le_smul
[ { "state_after": "case intro.intro\nR✝ : Type ?u.46750\nM✝ : Type ?u.46753\ninst✝⁵ : Semiring R✝\ninst✝⁴ : AddCommMonoid M✝\ninst✝³ : Module R✝ M✝\nR : Type u_1\ninst✝² : CommRing R\nM : Type u_2\ninst✝¹ : AddCommGroup M\ninst✝ : Module R M\nI : Ideal R\nN : Submodule R M\nhn : FG N\nhin : N ≤ I • N\nr : R\nhr ...
[ 143, 81 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 139, 1 ]
Mathlib/Data/Int/Parity.lean
Int.even_add'
[ { "state_after": "no goals", "state_before": "m n : ℤ\n⊢ Even (m + n) ↔ (Odd m ↔ Odd n)", "tactic": "rw [even_add, even_iff_not_odd, even_iff_not_odd, not_iff_not]" } ]
[ 112, 65 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 111, 1 ]
Mathlib/Topology/MetricSpace/Isometry.lean
Isometry.preimage_emetric_ball
[ { "state_after": "case h\nι : Type ?u.43449\nα : Type u\nβ : Type v\nγ : Type w\ninst✝² : PseudoEMetricSpace α\ninst✝¹ : PseudoEMetricSpace β\ninst✝ : PseudoEMetricSpace γ\nf : α → β\nx✝ y✝ z : α\ns : Set α\nh : Isometry f\nx : α\nr : ℝ≥0∞\ny : α\n⊢ y ∈ f ⁻¹' EMetric.ball (f x) r ↔ y ∈ EMetric.ball x r", "s...
[ 152, 20 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 149, 1 ]
Mathlib/Computability/Partrec.lean
Partrec₂.comp₂
[]
[ 518, 16 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 516, 1 ]
Mathlib/Order/WellFoundedSet.lean
Set.IsPwo.isWf
[ { "state_after": "no goals", "state_before": "ι : Type ?u.104801\nα : Type u_1\nβ : Type ?u.104807\ninst✝¹ : Preorder α\ninst✝ : Preorder β\ns t : Set α\nh : IsPwo s\n⊢ IsWf s", "tactic": "simpa only [← lt_iff_le_not_le] using h.wellFoundedOn" } ]
[ 419, 56 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 418, 11 ]
Mathlib/Data/Set/Image.lean
Set.surjective_onto_image
[]
[ 596, 42 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 595, 1 ]
Mathlib/Tactic/NormNum/Core.lean
Mathlib.Meta.NormNum.IsRat.to_isInt
[ { "state_after": "no goals", "state_before": "α : Type u_1\ninst✝ : Ring α\nnum✝ : ℤ\ninv : Invertible ↑1\nthis : Invertible 1\n⊢ ↑num✝ * ⅟↑1 = ↑num✝", "tactic": "simp" } ]
[ 157, 62 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 156, 1 ]
Mathlib/Data/Set/Intervals/ProjIcc.lean
Set.projIcc_surjOn
[]
[ 84, 28 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 83, 1 ]
Mathlib/Algebra/Order/Rearrangement.lean
MonovaryOn.sum_smul_comp_perm_le_sum_smul
[ { "state_after": "ι : Type u_1\nα : Type u_2\nβ : Type u_3\ninst✝³ : LinearOrderedRing α\ninst✝² : LinearOrderedAddCommGroup β\ninst✝¹ : Module α β\ninst✝ : OrderedSMul α β\ns : Finset ι\nf : ι → α\ng : ι → β\n⊢ ∀ {σ : Perm ι}, MonovaryOn f g ↑s → {x | ↑σ x ≠ x} ⊆ ↑s → ∑ i in s, f i • g (↑σ i) ≤ ∑ i in s, f i •...
[ 111, 21 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 65, 1 ]
Mathlib/Topology/Algebra/Order/MonotoneConvergence.lean
tendsto_atTop_ciInf
[ { "state_after": "no goals", "state_before": "α : Type u_2\nβ : Type ?u.27589\nι : Type u_1\ninst✝³ : Preorder ι\ninst✝² : TopologicalSpace α\ninst✝¹ : ConditionallyCompleteLattice α\ninst✝ : InfConvergenceClass α\nf : ι → α\na : α\nh_anti : Antitone f\nhbdd : BddBelow (range f)\n⊢ Tendsto f atTop (𝓝 (⨅ (i...
[ 150, 99 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 149, 1 ]
Mathlib/Analysis/InnerProductSpace/Calculus.lean
ContDiffWithinAt.inner
[]
[ 81, 56 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 79, 1 ]
Mathlib/Data/Polynomial/Basic.lean
Polynomial.monomial_mul_X_pow
[ { "state_after": "case zero\nR : Type u\na b : R\nm n✝ : ℕ\ninst✝ : Semiring R\np q : R[X]\nn : ℕ\nr : R\n⊢ ↑(monomial n) r * X ^ Nat.zero = ↑(monomial (n + Nat.zero)) r\n\ncase succ\nR : Type u\na b : R\nm n✝ : ℕ\ninst✝ : Semiring R\np q : R[X]\nn : ℕ\nr : R\nk : ℕ\nih : ↑(monomial n) r * X ^ k = ↑(monomial (n...
[ 632, 49 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 628, 1 ]
Mathlib/SetTheory/Game/PGame.lean
PGame.add_right_neg_equiv
[]
[ 1698, 53 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1697, 1 ]
Mathlib/RingTheory/Ideal/Operations.lean
Ideal.map_surjective_of_surjective
[]
[ 1572, 33 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1571, 1 ]
Mathlib/RingTheory/Algebraic.lean
isAlgebraic_of_mem_rootSet
[]
[ 137, 66 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 135, 1 ]
Mathlib/Data/Set/Basic.lean
Set.not_nontrivial_iff
[]
[ 2611, 41 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 2610, 1 ]
Mathlib/Order/Atoms.lean
IsCompl.isAtom_iff_isCoatom
[]
[ 849, 81 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 847, 1 ]
Mathlib/Data/Dfinsupp/Basic.lean
Dfinsupp.filter_ne_eq_erase
[ { "state_after": "case h\nι : Type u\nγ : Type w\nβ : ι → Type v\nβ₁ : ι → Type v₁\nβ₂ : ι → Type v₂\ndec : DecidableEq ι\ninst✝ : (i : ι) → Zero (β i)\ns : Finset ι\nx : (i : ↑↑s) → β ↑i\ni✝ : ι\nf : Π₀ (i : ι), β i\ni j : ι\n⊢ ↑(filter (fun x => x ≠ i) f) j = ↑(erase i f) j", "state_before": "ι : Type u\n...
[ 783, 67 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 781, 1 ]
Mathlib/RingTheory/Congruence.lean
RingCon.coe_neg
[]
[ 256, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 255, 1 ]
Mathlib/Algebra/Group/Units.lean
Units.mul_eq_one_iff_eq_inv
[ { "state_after": "no goals", "state_before": "α : Type u\ninst✝ : Monoid α\na✝ b c u : αˣ\na : α\n⊢ a * ↑u = 1 ↔ a = ↑u⁻¹", "tactic": "rw [← mul_inv_eq_one, inv_inv]" } ]
[ 390, 98 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 390, 1 ]
Mathlib/MeasureTheory/Group/Arithmetic.lean
AEMeasurable.div'
[]
[ 346, 51 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 344, 1 ]
Mathlib/CategoryTheory/Sites/Sieves.lean
CategoryTheory.Sieve.functorPushforward_extend_eq
[ { "state_after": "case h\nC : Type u₁\ninst✝² : Category C\nD : Type u₂\ninst✝¹ : Category D\nF : C ⥤ D\nX Y✝ Z : C\nf : Y✝ ⟶ X\nS R✝ : Sieve X\nE : Type u₃\ninst✝ : Category E\nG : D ⥤ E\nR : Presieve X\nY : D\n⊢ Presieve.functorPushforward F (generate R).arrows = Presieve.functorPushforward F R", "state_b...
[ 623, 46 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 615, 1 ]
Mathlib/Order/Iterate.lean
Monotone.seq_lt_seq_of_lt_of_le
[ { "state_after": "case zero\nα : Type u_1\ninst✝ : Preorder α\nf : α → α\nx y : ℕ → α\nhf : Monotone f\nh₀ : x 0 < y 0\nhx : ∀ (k : ℕ), k < Nat.zero → x (k + 1) < f (x k)\nhy : ∀ (k : ℕ), k < Nat.zero → f (y k) ≤ y (k + 1)\n⊢ x Nat.zero < y Nat.zero\n\ncase succ\nα : Type u_1\ninst✝ : Preorder α\nf : α → α\nx y...
[ 73, 78 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 70, 1 ]
Mathlib/Algebra/IndicatorFunction.lean
Set.indicator_le_indicator_nonneg
[ { "state_after": "α : Type u_2\nβ✝ : Type ?u.165616\nι : Type ?u.165619\nM : Type ?u.165622\nN : Type ?u.165625\nβ : Type u_1\ninst✝¹ : LinearOrder β\ninst✝ : Zero β\ns : Set α\nf : α → β\nx : α\n⊢ indicator s f x ≤ indicator {x | 0 ≤ f x} f x", "state_before": "α : Type u_2\nβ✝ : Type ?u.165616\nι : Type ?...
[ 890, 19 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 881, 1 ]
Mathlib/Data/Real/ENNReal.lean
ENNReal.sub_lt_self_iff
[]
[ 1181, 37 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1180, 11 ]
Mathlib/SetTheory/Ordinal/Arithmetic.lean
Ordinal.sSup_ord
[ { "state_after": "α : Type ?u.298606\nβ : Type ?u.298609\nγ : Type ?u.298612\nr : α → α → Prop\ns✝ : β → β → Prop\nt : γ → γ → Prop\ns : Set Cardinal\nhs : BddAbove s\na : Ordinal\n⊢ (∀ (x : Cardinal), x ∈ s → x ≤ card a) ↔ ∀ (x : Ordinal), x ∈ ord '' s → x ≤ a", "state_before": "α : Type ?u.298606\nβ : Typ...
[ 1403, 18 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1398, 1 ]
Mathlib/Topology/MetricSpace/Basic.lean
dist_triangle_right
[ { "state_after": "α : Type u\nβ : Type v\nX : Type ?u.9917\nι : Type ?u.9920\ninst✝ : PseudoMetricSpace α\nx y z : α\n⊢ dist x y ≤ dist x z + dist z y", "state_before": "α : Type u\nβ : Type v\nX : Type ?u.9917\nι : Type ?u.9920\ninst✝ : PseudoMetricSpace α\nx y z : α\n⊢ dist x y ≤ dist x z + dist y z", ...
[ 208, 40 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 207, 1 ]
Mathlib/Analysis/InnerProductSpace/Basic.lean
inner_zero_left
[ { "state_after": "no goals", "state_before": "𝕜 : Type u_1\nE : Type u_2\nF : Type ?u.1517880\ninst✝⁴ : IsROrC 𝕜\ninst✝³ : NormedAddCommGroup E\ninst✝² : InnerProductSpace 𝕜 E\ninst✝¹ : NormedAddCommGroup F\ninst✝ : InnerProductSpace ℝ F\ndec_E : DecidableEq E\nx : E\n⊢ inner 0 x = 0", "tactic": "rw ...
[ 561, 87 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 560, 1 ]
Mathlib/Combinatorics/SimpleGraph/Basic.lean
SimpleGraph.deleteEdges_univ_eq
[ { "state_after": "case Adj.h.h.a\nι : Sort ?u.156524\n𝕜 : Type ?u.156527\nV : Type u\nW : Type v\nX : Type w\nG : SimpleGraph V\nG' : SimpleGraph W\na b c u v w : V\ne : Sym2 V\nx✝¹ x✝ : V\n⊢ Adj (deleteEdges G Set.univ) x✝¹ x✝ ↔ Adj ⊥ x✝¹ x✝", "state_before": "ι : Sort ?u.156524\n𝕜 : Type ?u.156527\nV : ...
[ 1147, 7 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1145, 1 ]
Mathlib/FieldTheory/Minpoly/Basic.lean
minpoly.subsingleton
[ { "state_after": "A : Type u_2\nB : Type u_1\nB' : Type ?u.53832\ninst✝⁵ : CommRing A\ninst✝⁴ : Ring B\ninst✝³ : Ring B'\ninst✝² : Algebra A B\ninst✝¹ : Algebra A B'\nx : B\ninst✝ : Subsingleton B\n✝ : Nontrivial A\n⊢ minpoly A x = 1", "state_before": "A : Type u_2\nB : Type u_1\nB' : Type ?u.53832\ninst✝⁵ ...
[ 171, 31 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 165, 1 ]
Mathlib/Order/Filter/Pointwise.lean
Filter.one_le_div_iff
[ { "state_after": "case refine'_1\nF : Type ?u.310838\nα : Type u_1\nβ : Type ?u.310844\nγ : Type ?u.310847\nδ : Type ?u.310850\nε : Type ?u.310853\ninst✝² : Group α\ninst✝¹ : DivisionMonoid β\ninst✝ : MonoidHomClass F α β\nm : F\nf g f₁ g₁ : Filter α\nf₂ g₂ : Filter β\nh : 1 ≤ f / g\nhfg : Disjoint f g\n⊢ False...
[ 860, 89 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 855, 11 ]
Mathlib/LinearAlgebra/BilinearForm.lean
BilinForm.coeFn_congr
[]
[ 91, 32 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 90, 1 ]
Mathlib/Algebra/GroupPower/Order.lean
sq_pos_of_pos
[ { "state_after": "β : Type ?u.233772\nA : Type ?u.233775\nG : Type ?u.233778\nM : Type ?u.233781\nR : Type u_1\ninst✝ : StrictOrderedSemiring R\na x y : R\nn m : ℕ\nha : 0 < a\n⊢ 0 < a * a", "state_before": "β : Type ?u.233772\nA : Type ?u.233775\nG : Type ?u.233778\nM : Type ?u.233781\nR : Type u_1\ninst✝ ...
[ 534, 22 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 532, 1 ]
Mathlib/LinearAlgebra/CrossProduct.lean
cross_anticomm'
[ { "state_after": "no goals", "state_before": "R : Type u_1\ninst✝ : CommRing R\nv w : Fin 3 → R\n⊢ ↑(↑crossProduct v) w + ↑(↑crossProduct w) v = 0", "tactic": "rw [add_eq_zero_iff_eq_neg, cross_anticomm]" } ]
[ 84, 46 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 83, 1 ]
Mathlib/RingTheory/Algebraic.lean
IsIntegral.isAlgebraic
[]
[ 100, 43 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 99, 1 ]
Mathlib/Algebra/BigOperators/NatAntidiagonal.lean
Finset.Nat.sum_antidiagonal_succ
[]
[ 35, 51 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 33, 1 ]
Mathlib/Algebra/Lie/Basic.lean
lie_neg
[ { "state_after": "R : Type u\nL : Type v\nM : Type w\nN : Type w₁\ninst✝¹⁰ : CommRing R\ninst✝⁹ : LieRing L\ninst✝⁸ : LieAlgebra R L\ninst✝⁷ : AddCommGroup M\ninst✝⁶ : Module R M\ninst✝⁵ : LieRingModule L M\ninst✝⁴ : LieModule R L M\ninst✝³ : AddCommGroup N\ninst✝² : Module R N\ninst✝¹ : LieRingModule L N\ninst...
[ 180, 7 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 178, 1 ]
Mathlib/LinearAlgebra/StdBasis.lean
Pi.basis_repr_stdBasis
[ { "state_after": "case h.mk\nR : Type u_3\nη : Type u_1\nιs : η → Type u_2\nMs : η → Type u_4\ninst✝⁴ : Semiring R\ninst✝³ : (i : η) → AddCommMonoid (Ms i)\ninst✝² : (i : η) → Module R (Ms i)\ninst✝¹ : Fintype η\ninst✝ : DecidableEq η\ns : (j : η) → Basis (ιs j) R (Ms j)\nj : η\ni : ιs j\nj' : η\ni' : ιs j'\n⊢ ...
[ 256, 16 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 236, 1 ]
Mathlib/Analysis/Calculus/TangentCone.lean
uniqueDiffOn_Iio
[]
[ 428, 26 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 427, 1 ]
Mathlib/Order/RelClasses.lean
antisymm'
[]
[ 39, 98 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 39, 1 ]
Mathlib/Algebra/Associated.lean
Associates.le_mul_left
[ { "state_after": "α : Type u_1\nβ : Type ?u.300647\nγ : Type ?u.300650\nδ : Type ?u.300653\ninst✝ : CommMonoid α\na b : Associates α\n⊢ a ≤ a * b", "state_before": "α : Type u_1\nβ : Type ?u.300647\nγ : Type ?u.300650\nδ : Type ?u.300653\ninst✝ : CommMonoid α\na b : Associates α\n⊢ a ≤ b * a", "tactic":...
[ 916, 94 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 916, 1 ]
Mathlib/Data/Set/Function.lean
Set.EqOn.piecewise_ite'
[ { "state_after": "no goals", "state_before": "α : Type u_1\nβ : Type u_2\nγ : Type ?u.88049\nι : Sort ?u.88052\nπ : α → Type ?u.88057\nδ : α → Sort ?u.88062\ns : Set α\nf✝ g✝ : (i : α) → δ i\ninst✝ : (j : α) → Decidable (j ∈ s)\nf f' g : α → β\nt t' : Set α\nh : EqOn f g (t ∩ s)\nh' : EqOn f' g (t' ∩ sᶜ)\n⊢...
[ 1460, 27 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1458, 1 ]
Mathlib/Algebra/GCDMonoid/Basic.lean
dvd_mul_gcd_of_dvd_mul
[ { "state_after": "α : Type u_1\ninst✝¹ : CancelCommMonoidWithZero α\ninst✝ : GCDMonoid α\nm n k : α\nH : k ∣ n * m\n⊢ k ∣ gcd k n * m", "state_before": "α : Type u_1\ninst✝¹ : CancelCommMonoidWithZero α\ninst✝ : GCDMonoid α\nm n k : α\nH : k ∣ m * n\n⊢ k ∣ m * gcd k n", "tactic": "rw [mul_comm] at H⊢" ...
[ 517, 33 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 515, 1 ]
Mathlib/Data/Set/Pointwise/Basic.lean
Set.inter_mul_subset
[]
[ 454, 27 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 453, 1 ]