file_path
stringlengths
11
79
full_name
stringlengths
2
100
traced_tactics
list
end
list
commit
stringclasses
4 values
url
stringclasses
4 values
start
list
Mathlib/Algebra/Divisibility/Basic.lean
one_dvd
[]
[ 130, 26 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 129, 1 ]
Mathlib/CategoryTheory/Extensive.lean
CategoryTheory.BinaryCofan.mono_inr_of_isVanKampen
[ { "state_after": "J : Type v'\ninst✝² : Category J\nC : Type u\ninst✝¹ : Category C\nX✝ Y✝ : C\ninst✝ : HasInitial C\nX Y : C\nc : BinaryCofan X Y\nh : IsVanKampenColimit c\n⊢ IsPullback (𝟙 ((pair X Y).obj { as := WalkingPair.right })) (𝟙 ((pair X Y).obj { as := WalkingPair.right }))\n (BinaryCofan.inr c) ...
[ 241, 28 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 233, 1 ]
Mathlib/SetTheory/Ordinal/Basic.lean
Ordinal.type_lt
[]
[ 220, 48 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 219, 1 ]
Mathlib/NumberTheory/Liouville/LiouvilleWith.lean
LiouvilleWith.sub_nat_iff
[ { "state_after": "no goals", "state_before": "p q x y : ℝ\nr : ℚ\nm : ℤ\nn : ℕ\n⊢ LiouvilleWith p (x - ↑n) ↔ LiouvilleWith p x", "tactic": "rw [← Rat.cast_coe_nat, sub_rat_iff]" } ]
[ 283, 39 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 282, 1 ]
Mathlib/CategoryTheory/Generator.lean
CategoryTheory.isSeparator_coprod_of_isSeparator_left
[ { "state_after": "no goals", "state_before": "C : Type u₁\ninst✝³ : Category C\nD : Type u₂\ninst✝² : Category D\ninst✝¹ : HasZeroMorphisms C\nG H : C\ninst✝ : HasBinaryCoproduct G H\nhG : IsSeparator G\n⊢ {G} ⊆ {G, H}", "tactic": "simp" } ]
[ 564, 64 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 562, 1 ]
Mathlib/Data/Complex/Basic.lean
Complex.bit0_im
[]
[ 217, 12 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 216, 1 ]
Mathlib/GroupTheory/Subsemigroup/Basic.lean
Subsemigroup.mem_sInf
[]
[ 250, 18 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 249, 1 ]
Mathlib/Data/Set/Sups.lean
Set.empty_sups
[]
[ 133, 20 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 132, 1 ]
Mathlib/MeasureTheory/Integral/Bochner.lean
MeasureTheory.SimpleFunc.integral_eq_sum_of_subset
[ { "state_after": "α : Type u_2\nE : Type ?u.107493\nF : Type u_1\n𝕜 : Type ?u.107499\ninst✝⁶ : NormedAddCommGroup E\ninst✝⁵ : NormedAddCommGroup F\ninst✝⁴ : NormedSpace ℝ F\np : ℝ≥0∞\nG : Type ?u.107601\nF' : Type ?u.107604\ninst✝³ : NormedAddCommGroup G\ninst✝² : NormedAddCommGroup F'\ninst✝¹ : NormedSpace ℝ ...
[ 343, 68 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 332, 1 ]
Mathlib/MeasureTheory/Integral/IntegrableOn.lean
MeasureTheory.StronglyMeasurable.stronglyMeasurableAtFilter
[]
[ 73, 52 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 71, 11 ]
Mathlib/RingTheory/IntegralClosure.lean
IsIntegralClosure.isIntegral
[]
[ 844, 74 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 842, 11 ]
Mathlib/Data/Polynomial/Degree/TrailingDegree.lean
Polynomial.natTrailingDegree_nat_cast
[ { "state_after": "no goals", "state_before": "R : Type u\nS : Type v\na b : R\nn✝ m : ℕ\ninst✝ : Semiring R\np q r : R[X]\nn : ℕ\n⊢ natTrailingDegree ↑n = 0", "tactic": "simp only [← C_eq_nat_cast, natTrailingDegree_C]" } ]
[ 249, 51 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 248, 1 ]
Mathlib/Topology/LocalHomeomorph.lean
LocalHomeomorph.IsImage.inter_eq_of_inter_eq_of_eqOn
[]
[ 576, 56 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 573, 1 ]
Mathlib/Data/Set/Equitable.lean
Set.equitableOn_iff_exists_le_le_add_one
[ { "state_after": "α : Type u_1\nβ : Type ?u.456\ns : Set α\nf : α → ℕ\n⊢ EquitableOn s f → ∃ b, ∀ (a : α), a ∈ s → b ≤ f a ∧ f a ≤ b + 1", "state_before": "α : Type u_1\nβ : Type ?u.456\ns : Set α\nf : α → ℕ\n⊢ EquitableOn s f ↔ ∃ b, ∀ (a : α), a ∈ s → b ≤ f a ∧ f a ≤ b + 1", "tactic": "refine' ⟨_, fun ...
[ 57, 17 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 45, 1 ]
Mathlib/CategoryTheory/Idempotents/Karoubi.lean
CategoryTheory.Idempotents.Karoubi.hom_ext_iff
[ { "state_after": "case mp\nC : Type u_1\ninst✝ : Category C\nP Q : Karoubi C\nf g : P ⟶ Q\n⊢ f = g → f.f = g.f\n\ncase mpr\nC : Type u_1\ninst✝ : Category C\nP Q : Karoubi C\nf g : P ⟶ Q\n⊢ f.f = g.f → f = g", "state_before": "C : Type u_1\ninst✝ : Category C\nP Q : Karoubi C\nf g : P ⟶ Q\n⊢ f = g ↔ f.f = g...
[ 115, 18 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 111, 1 ]
Mathlib/Algebra/Invertible.lean
invOf_mul
[ { "state_after": "no goals", "state_before": "α : Type u\ninst✝³ : Monoid α\na b : α\ninst✝² : Invertible a\ninst✝¹ : Invertible b\ninst✝ : Invertible (a * b)\n⊢ a * b * (⅟b * ⅟a) = 1", "tactic": "simp [← mul_assoc]" } ]
[ 296, 45 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 294, 1 ]
Mathlib/Topology/Bornology/Constructions.lean
Bornology.forall_isBounded_image_eval_iff
[]
[ 109, 25 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 107, 1 ]
Mathlib/SetTheory/Ordinal/Exponential.lean
Ordinal.log_one_right
[]
[ 376, 69 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 375, 1 ]
Mathlib/Algebra/Group/Prod.lean
MonoidHom.coe_prodMap
[]
[ 609, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 608, 1 ]
Mathlib/GroupTheory/Perm/Cycle/Basic.lean
Equiv.Perm.cycleOf_mul_of_apply_right_eq_self
[ { "state_after": "case H\nι : Type ?u.2506488\nα : Type u_1\nβ : Type ?u.2506494\ninst✝¹ : DecidableEq α\ninst✝ : Fintype α\nf g : Perm α\nx✝ y✝ : α\nh : _root_.Commute f g\nx : α\nhx : ↑g x = x\ny : α\n⊢ ↑(cycleOf (f * g) x) y = ↑(cycleOf f x) y", "state_before": "ι : Type ?u.2506488\nα : Type u_1\nβ : Typ...
[ 1125, 62 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1114, 1 ]
Mathlib/Topology/Algebra/Module/LocallyConvex.lean
LocallyConvexSpace.ofBases
[]
[ 66, 101 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 59, 1 ]
Mathlib/Data/Multiset/Basic.lean
Multiset.filterMap_map
[]
[ 2154, 75 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 2152, 1 ]
Mathlib/Data/Matrix/Basic.lean
Matrix.conjTranspose_intCast_smul
[ { "state_after": "no goals", "state_before": "l : Type ?u.1000581\nm : Type u_2\nn : Type u_3\no : Type ?u.1000590\nm' : o → Type ?u.1000595\nn' : o → Type ?u.1000600\nR : Type u_1\nS : Type ?u.1000606\nα : Type v\nβ : Type w\nγ : Type ?u.1000613\ninst✝³ : Ring R\ninst✝² : AddCommGroup α\ninst✝¹ : StarAddMo...
[ 2212, 24 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 2210, 1 ]
Mathlib/RingTheory/HahnSeries.lean
HahnSeries.single_zero_mul_eq_smul
[ { "state_after": "case coeff.h\nΓ : Type u_2\nR : Type u_1\ninst✝¹ : OrderedCancelAddCommMonoid Γ\ninst✝ : Semiring R\nr : R\nx : HahnSeries Γ R\nx✝ : Γ\n⊢ coeff (↑(single 0) r * x) x✝ = coeff (r • x) x✝", "state_before": "Γ : Type u_2\nR : Type u_1\ninst✝¹ : OrderedCancelAddCommMonoid Γ\ninst✝ : Semiring R...
[ 760, 30 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 757, 1 ]
Mathlib/Data/Complex/Exponential.lean
Real.cosh_add_sinh
[ { "state_after": "x y : ℝ\n⊢ ↑(cosh x + sinh x) = ↑(exp x)", "state_before": "x y : ℝ\n⊢ cosh x + sinh x = exp x", "tactic": "rw [← ofReal_inj]" }, { "state_after": "no goals", "state_before": "x y : ℝ\n⊢ ↑(cosh x + sinh x) = ↑(exp x)", "tactic": "simp" } ]
[ 1403, 78 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1403, 1 ]
Mathlib/Data/Finset/Lattice.lean
Finset.codisjoint_inf_right
[]
[ 558, 45 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 556, 11 ]
Mathlib/Algebra/Order/Group/Defs.lean
inv_mul_le_one_iff
[ { "state_after": "no goals", "state_before": "α : Type u\ninst✝² : Group α\ninst✝¹ : LE α\ninst✝ : CovariantClass α α (fun x x_1 => x * x_1) fun x x_1 => x ≤ x_1\na b c d : α\n⊢ b ≤ a * 1 ↔ b ≤ a", "tactic": "rw [mul_one]" } ]
[ 149, 56 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 147, 1 ]
Mathlib/LinearAlgebra/Matrix/SesquilinearForm.lean
LinearMap.nondegenerate_toMatrix_iff
[]
[ 732, 57 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 729, 1 ]
Mathlib/Topology/Sequences.lean
mem_closure_iff_seq_limit
[ { "state_after": "X : Type u_1\nY : Type ?u.2722\ninst✝² : TopologicalSpace X\ninst✝¹ : TopologicalSpace Y\ninst✝ : FrechetUrysohnSpace X\ns : Set X\na : X\n⊢ a ∈ seqClosure s ↔ ∃ x, (∀ (n : ℕ), x n ∈ s) ∧ Tendsto x atTop (𝓝 a)", "state_before": "X : Type u_1\nY : Type ?u.2722\ninst✝² : TopologicalSpace X\...
[ 137, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 134, 1 ]
Mathlib/LinearAlgebra/QuadraticForm/Basic.lean
QuadraticForm.polar_add_left
[]
[ 267, 57 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 266, 1 ]
Mathlib/Order/Filter/AtTopBot.lean
Filter.tendsto_abs_atBot_atTop
[]
[ 939, 61 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 938, 1 ]
Mathlib/GroupTheory/FreeGroup.lean
FreeGroup.ext_hom
[]
[ 753, 34 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 751, 1 ]
Mathlib/Analysis/ODE/PicardLindelof.lean
PicardLindelof.FunSpace.continuous_vComp
[ { "state_after": "E : Type u_1\ninst✝¹ : NormedAddCommGroup E\ninst✝ : NormedSpace ℝ E\nv : PicardLindelof E\nf : FunSpace v\nthis : Continuous ((fun x => (↑x, toFun f x)) ∘ proj v)\n⊢ Continuous (vComp f)", "state_before": "E : Type u_1\ninst✝¹ : NormedAddCommGroup E\ninst✝ : NormedSpace ℝ E\nv : PicardLin...
[ 234, 43 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 231, 1 ]
Mathlib/LinearAlgebra/Pi.lean
LinearMap.iInf_ker_proj
[ { "state_after": "R : Type u\nK : Type u'\nM : Type v\nV : Type v'\nM₂ : Type w\nV₂ : Type w'\nM₃ : Type y\nV₃ : Type y'\nM₄ : Type z\nι : Type x\nι' : Type x'\ninst✝⁶ : Semiring R\ninst✝⁵ : AddCommMonoid M₂\ninst✝⁴ : Module R M₂\ninst✝³ : AddCommMonoid M₃\ninst✝² : Module R M₃\nφ : ι → Type i\ninst✝¹ : (i : ι)...
[ 108, 48 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 103, 1 ]
Mathlib/Algebra/Periodic.lean
Function.Periodic.neg
[ { "state_after": "no goals", "state_before": "α : Type u_1\nβ : Type u_2\nγ : Type ?u.80217\nf g : α → β\nc c₁ c₂ x : α\ninst✝ : AddGroup α\nh : Periodic f c\n⊢ Periodic f (-c)", "tactic": "simpa only [sub_eq_add_neg, Periodic] using h.sub_eq" } ]
[ 174, 55 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 173, 11 ]
Mathlib/FieldTheory/RatFunc.lean
RatFunc.denom_div_dvd
[ { "state_after": "case pos\nK : Type u\ninst✝ : Field K\np q : K[X]\nhq : q = 0\n⊢ denom (↑(algebraMap K[X] (RatFunc K)) p / ↑(algebraMap K[X] (RatFunc K)) q) ∣ q\n\ncase neg\nK : Type u\ninst✝ : Field K\np q : K[X]\nhq : ¬q = 0\n⊢ denom (↑(algebraMap K[X] (RatFunc K)) p / ↑(algebraMap K[X] (RatFunc K)) q) ∣ q"...
[ 1231, 101 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1226, 1 ]
Mathlib/Order/Filter/Basic.lean
Filter.mem_join
[]
[ 317, 10 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 316, 1 ]
Mathlib/LinearAlgebra/Determinant.lean
AlternatingMap.map_basis_eq_zero_iff
[ { "state_after": "case intro\nR : Type u_2\ninst✝⁷ : CommRing R\nM : Type u_3\ninst✝⁶ : AddCommGroup M\ninst✝⁵ : Module R M\nM' : Type ?u.2607358\ninst✝⁴ : AddCommGroup M'\ninst✝³ : Module R M'\nι✝ : Type ?u.2607900\ninst✝² : DecidableEq ι✝\ninst✝¹ : Fintype ι✝\ne✝ : Basis ι✝ R M\nι : Type u_1\ninst✝ : Finite ι...
[ 590, 50 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 584, 1 ]
Mathlib/Data/QPF/Univariate/Basic.lean
Qpf.Fix.rec_eq
[ { "state_after": "F : Type u → Type u\ninst✝ : Functor F\nq : Qpf F\nα : Type u\ng : F α → α\nx : F (Fix F)\nthis : recF g ∘ fixToW = rec g\n⊢ rec g (mk x) = g (rec g <$> x)", "state_before": "F : Type u → Type u\ninst✝ : Functor F\nq : Qpf F\nα : Type u\ng : F α → α\nx : F (Fix F)\n⊢ rec g (mk x) = g (rec ...
[ 296, 25 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 281, 1 ]
Mathlib/Algebra/Star/SelfAdjoint.lean
isSelfAdjoint_add_star_self
[ { "state_after": "no goals", "state_before": "R : Type u_1\nA : Type ?u.12261\ninst✝¹ : AddCommMonoid R\ninst✝ : StarAddMonoid R\nx : R\n⊢ IsSelfAdjoint (x + star x)", "tactic": "simp only [isSelfAdjoint_iff, add_comm, star_add, star_star]" } ]
[ 146, 63 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 145, 1 ]
Mathlib/Data/List/Range.lean
List.chain'_range_succ
[ { "state_after": "α : Type u\nr : ℕ → ℕ → Prop\nn : ℕ\n⊢ Chain' r (range n ++ [n]) ↔ ∀ (m : ℕ), m < n → r m (succ m)", "state_before": "α : Type u\nr : ℕ → ℕ → Prop\nn : ℕ\n⊢ Chain' r (range (succ n)) ↔ ∀ (m : ℕ), m < n → r m (succ m)", "tactic": "rw [range_succ]" }, { "state_after": "case zero\...
[ 104, 28 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 96, 1 ]
Mathlib/RingTheory/Finiteness.lean
Submodule.FG.prod
[ { "state_after": "no goals", "state_before": "R : Type u_1\nM : Type u_2\ninst✝⁴ : Semiring R\ninst✝³ : AddCommMonoid M\ninst✝² : Module R M\nP : Type u_3\ninst✝¹ : AddCommMonoid P\ninst✝ : Module R P\nf : M →ₗ[R] P\nsb : Submodule R M\nsc : Submodule R P\nhsb : FG sb\nhsc : FG sc\ntb : Set M\nhtb : Set.Fin...
[ 247, 58 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 241, 1 ]
Mathlib/Analysis/BoxIntegral/Partition/Basic.lean
BoxIntegral.Prepartition.mem_inf
[ { "state_after": "no goals", "state_before": "ι : Type u_1\nI J J₁ J₂ : Box ι\nπ π₁✝ π₂✝ : Prepartition I\nx : ι → ℝ\nπi πi₁ πi₂ : (J : Box ι) → Prepartition J\nπ₁ π₂ : Prepartition I\n⊢ J ∈ π₁ ⊓ π₂ ↔ ∃ J₁, J₁ ∈ π₁ ∧ ∃ J₂, J₂ ∈ π₂ ∧ ↑J = ↑J₁ ⊓ ↑J₂", "tactic": "simp only [inf_def, mem_biUnion, mem_restri...
[ 577, 49 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 575, 1 ]
Mathlib/LinearAlgebra/TensorAlgebra/Basic.lean
TensorAlgebra.ι_comp_lift
[ { "state_after": "no goals", "state_before": "R : Type u_2\ninst✝⁴ : CommSemiring R\nM : Type u_3\ninst✝³ : AddCommMonoid M\ninst✝² : Module R M\nA : Type u_1\ninst✝¹ : Semiring A\ninst✝ : Algebra R A\nf : M →ₗ[R] A\n⊢ LinearMap.comp (AlgHom.toLinearMap (↑(lift R) f)) (ι R) = f", "tactic": "convert (lif...
[ 131, 38 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 129, 1 ]
Mathlib/LinearAlgebra/PiTensorProduct.lean
PiTensorProduct.reindex_trans
[ { "state_after": "case a\nι : Type u_1\nι₂ : Type u_2\nι₃ : Type u_3\nR : Type u_4\ninst✝⁷ : CommSemiring R\nR₁ : Type ?u.488461\nR₂ : Type ?u.488464\ns : ι → Type ?u.488469\ninst✝⁶ : (i : ι) → AddCommMonoid (s i)\ninst✝⁵ : (i : ι) → Module R (s i)\nM : Type u_5\ninst✝⁴ : AddCommMonoid M\ninst✝³ : Module R M\nE...
[ 510, 8 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 502, 1 ]
Mathlib/Data/Polynomial/EraseLead.lean
Polynomial.card_support_eq
[ { "state_after": "R : Type u_1\ninst✝ : Semiring R\nf : R[X]\nn : ℕ\n⊢ card (support f) = n → ∃ k x hk hx, f = ∑ i : Fin n, ↑C (x i) * X ^ k i", "state_before": "R : Type u_1\ninst✝ : Semiring R\nf : R[X]\nn : ℕ\n⊢ card (support f) = n ↔ ∃ k x hk hx, f = ∑ i : Fin n, ↑C (x i) * X ^ k i", "tactic": "refi...
[ 351, 24 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 309, 1 ]
Mathlib/Analysis/Calculus/FDeriv/Mul.lean
Differentiable.mul_const
[]
[ 438, 69 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 437, 1 ]
Mathlib/RingTheory/Valuation/Basic.lean
AddValuation.valuation_apply
[]
[ 655, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 654, 1 ]
Mathlib/Data/Real/ENNReal.lean
ENNReal.Ico_eq_Iio
[]
[ 1286, 10 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1285, 11 ]
Mathlib/Order/CompleteLattice.lean
le_sSup_iff
[]
[ 169, 75 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 168, 1 ]
Mathlib/Topology/NoetherianSpace.lean
TopologicalSpace.noetherianSpace_iff_of_homeomorph
[]
[ 133, 87 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 131, 1 ]
Mathlib/Topology/UniformSpace/Basic.lean
UniformSpace.mem_ball_self
[]
[ 621, 25 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 620, 1 ]
Mathlib/Topology/Order/Basic.lean
frontier_Ioo
[ { "state_after": "no goals", "state_before": "α : Type u\nβ : Type v\nγ : Type w\ninst✝³ : TopologicalSpace α\ninst✝² : LinearOrder α\ninst✝¹ : OrderTopology α\ninst✝ : DenselyOrdered α\na✝ b✝ : α\ns : Set α\na b : α\nh : a < b\n⊢ frontier (Ioo a b) = {a, b}", "tactic": "rw [frontier, closure_Ioo h.ne, ...
[ 2369, 72 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 2368, 1 ]
Mathlib/Order/Max.lean
IsTop.snd
[]
[ 428, 73 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 428, 1 ]
Mathlib/Analysis/SpecialFunctions/Trigonometric/Basic.lean
Real.one_le_pi_div_two
[ { "state_after": "⊢ 1 ≤ choose exists_cos_eq_zero", "state_before": "⊢ 1 ≤ π / 2", "tactic": "rw [Real.pi, mul_div_cancel_left _ (two_ne_zero' ℝ)]" }, { "state_after": "no goals", "state_before": "⊢ 1 ≤ choose exists_cos_eq_zero", "tactic": "exact (Classical.choose_spec exists_cos_eq_zer...
[ 145, 55 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 143, 1 ]
Mathlib/Data/Multiset/Dedup.lean
Multiset.dedup_ext
[ { "state_after": "no goals", "state_before": "α : Type u_1\nβ : Type ?u.9380\ninst✝ : DecidableEq α\ns t : Multiset α\n⊢ dedup s = dedup t ↔ ∀ (a : α), a ∈ s ↔ a ∈ t", "tactic": "simp [Nodup.ext]" } ]
[ 130, 19 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 129, 1 ]
Mathlib/Order/Filter/Ultrafilter.lean
Ultrafilter.of_coe
[]
[ 392, 43 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 391, 1 ]
Mathlib/Data/Set/Sups.lean
Set.sups_eq_empty
[]
[ 143, 22 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 142, 1 ]
Mathlib/Data/Part.lean
Part.ne_none_iff
[ { "state_after": "case mp\nα : Type u_1\nβ : Type ?u.5585\nγ : Type ?u.5588\no : Part α\n⊢ o ≠ none → ∃ x, o = some x\n\ncase mpr\nα : Type u_1\nβ : Type ?u.5585\nγ : Type ?u.5588\no : Part α\n⊢ (∃ x, o = some x) → o ≠ none", "state_before": "α : Type u_1\nβ : Type ?u.5585\nγ : Type ?u.5588\no : Part α\n⊢ o...
[ 209, 23 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 204, 1 ]
Mathlib/Logic/Basic.lean
bex_imp
[ { "state_after": "no goals", "state_before": "α : Sort u_1\nr p q : α → Prop\nP Q : (x : α) → p x → Prop\nb : Prop\n⊢ (∃ x h, P x h) → b ↔ ∀ (x : α) (h : p x), P x h → b", "tactic": "simp" } ]
[ 1076, 67 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1076, 1 ]
Mathlib/Data/Polynomial/Eval.lean
Polynomial.bit1_comp
[ { "state_after": "no goals", "state_before": "R : Type u\nS : Type v\nT : Type w\nι : Type y\na b : R\nm n : ℕ\ninst✝ : Semiring R\np q r : R[X]\n⊢ comp (bit1 p) q = bit1 (comp p q)", "tactic": "simp only [bit1, add_comp, bit0_comp, one_comp]" } ]
[ 649, 50 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 648, 1 ]
Mathlib/Combinatorics/SimpleGraph/Basic.lean
SimpleGraph.support_mono
[]
[ 447, 17 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 446, 1 ]
Mathlib/Data/Polynomial/Degree/Definitions.lean
Polynomial.natDegree_add_eq_left_of_natDegree_lt
[]
[ 703, 83 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 701, 1 ]
Mathlib/Topology/MetricSpace/MetricSeparated.lean
IsMetricSeparated.empty_left
[]
[ 50, 41 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 49, 1 ]
Mathlib/Analysis/Complex/UnitDisc/Basic.lean
Complex.UnitDisc.im_conj
[]
[ 243, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 242, 1 ]
Mathlib/Data/Set/Intervals/Monoid.lean
Set.image_const_add_Ioo
[ { "state_after": "no goals", "state_before": "M : Type u_1\ninst✝¹ : OrderedCancelAddCommMonoid M\ninst✝ : ExistsAddOfLE M\na b c d : M\n⊢ (fun x => a + x) '' Ioo b c = Ioo (a + b) (a + c)", "tactic": "simp only [add_comm a, image_add_const_Ioo]" } ]
[ 142, 46 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 141, 1 ]
Mathlib/MeasureTheory/Integral/RieszMarkovKakutani.lean
exists_lt_rieszContentAux_add_pos
[ { "state_after": "case intro.intro.intro\nX : Type u_1\ninst✝ : TopologicalSpace X\nΛ : (X →ᵇ ℝ≥0) →ₗ[ℝ≥0] ℝ≥0\nK : Compacts X\nε : ℝ≥0\nεpos : 0 < ε\nα : ℝ≥0\nα_hyp : α < rieszContentAux Λ K + ε\nf : X →ᵇ ℝ≥0\nf_hyp : f ∈ {f | ∀ (x : X), x ∈ K → 1 ≤ ↑f x} ∧ ↑Λ f = α\n⊢ ∃ f, (∀ (x : X), x ∈ K → 1 ≤ ↑f x) ∧ ↑Λ f...
[ 93, 14 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 85, 1 ]
Mathlib/Algebra/Order/Monoid/Lemmas.lean
StrictAntiOn.mul_const'
[]
[ 1429, 56 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1427, 1 ]
Std/Data/RBMap/WF.lean
Std.RBNode.Ordered.balLeft
[ { "state_after": "α : Type u_1\ncmp : α → α → Ordering\nl : RBNode α\nv : α\nr : RBNode α\nlv : All (fun x => cmpLT cmp x v) l\nvr : All (fun x => cmpLT cmp v x) r\nhl : Ordered cmp l\nhr : Ordered cmp r\n⊢ Ordered cmp\n (match l with\n | node red a x b => node red (node black a x b) v r\n | l =>\n ...
[ 250, 27 ]
e68aa8f5fe47aad78987df45f99094afbcb5e936
https://github.com/leanprover/std4
[ 240, 11 ]
Mathlib/SetTheory/ZFC/Basic.lean
ZFSet.toSet_sdiff
[ { "state_after": "x y : ZFSet\n⊢ toSet (ZFSet.sep (fun z => ¬z ∈ y) x) = toSet x \\ toSet y", "state_before": "x y : ZFSet\n⊢ toSet (x \\ y) = toSet x \\ toSet y", "tactic": "change (ZFSet.sep (fun z => z ∉ y) x).toSet = _" }, { "state_after": "case h\nx y x✝ : ZFSet\n⊢ x✝ ∈ toSet (ZFSet.sep (fu...
[ 1163, 7 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1160, 1 ]
Mathlib/Algebra/Field/Basic.lean
div_add_same
[ { "state_after": "no goals", "state_before": "α : Type u_1\nβ : Type ?u.2192\nK : Type ?u.2195\ninst✝ : DivisionSemiring α\na b c d : α\nh : b ≠ 0\n⊢ (a + b) / b = a / b + 1", "tactic": "rw [← div_self h, add_div]" } ]
[ 43, 92 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 43, 1 ]
Mathlib/SetTheory/ZFC/Basic.lean
Arity.const_succ
[]
[ 102, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 101, 1 ]
Mathlib/SetTheory/Ordinal/FixedPoint.lean
Ordinal.apply_le_nfpBFamily
[ { "state_after": "case refine'_1\no : Ordinal\nf : (b : Ordinal) → b < o → Ordinal → Ordinal\nho : o ≠ 0\nH : ∀ (i : Ordinal) (hi : i < o), IsNormal (f i hi)\na : Ordinal\nb : Ordinal\nh : ∀ (i : Ordinal) (hi : i < o), f i hi b ≤ nfpBFamily o f a\n⊢ b ≤ nfpBFamily o f a\n\ncase refine'_2\no : Ordinal\nf : (b : ...
[ 336, 30 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 330, 1 ]
Mathlib/Data/Set/Intervals/Basic.lean
Set.not_mem_Ici
[]
[ 1044, 9 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1043, 1 ]
Std/Data/Array/Init/Lemmas.lean
Array.foldrM_eq_foldrM_data
[ { "state_after": "no goals", "state_before": "m : Type u_1 → Type u_2\nα : Type u_3\nβ : Type u_1\ninst✝ : Monad m\nf : α → β → m β\ninit : β\narr : Array α\n⊢ foldrM f init arr (size arr) = List.foldrM f init arr.data", "tactic": "rw [foldrM_eq_reverse_foldlM_data, List.foldlM_reverse]" } ]
[ 69, 58 ]
e68aa8f5fe47aad78987df45f99094afbcb5e936
https://github.com/leanprover/std4
[ 66, 1 ]
Mathlib/Data/Fintype/Card.lean
Finite.injective_iff_surjective
[]
[ 630, 33 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 626, 1 ]
Mathlib/Topology/ContinuousFunction/Compact.lean
ContinuousMap.uniformInducing_equivBoundedOfCompact
[ { "state_after": "α : Type u_1\nβ : Type u_2\nE : Type ?u.908\ninst✝³ : TopologicalSpace α\ninst✝² : CompactSpace α\ninst✝¹ : MetricSpace β\ninst✝ : NormedAddCommGroup E\n⊢ ∀ (s : Set (C(α, β) × C(α, β))),\n (∃ i,\n (IsCompact i.fst ∧ ∃ i_1, 0 < i_1 ∧ {p | dist p.fst p.snd ≤ i_1} ⊆ i.snd) ∧\n ...
[ 71, 91 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 61, 1 ]
Mathlib/GroupTheory/FreeGroup.lean
FreeGroup.inv_bind
[]
[ 1077, 21 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1076, 1 ]
Mathlib/Analysis/Calculus/FDeriv/Star.lean
fderivWithin_star
[]
[ 103, 47 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 100, 1 ]
Mathlib/CategoryTheory/Limits/Shapes/Multiequalizer.lean
CategoryTheory.Limits.MulticospanIndex.fstPiMap_π
[ { "state_after": "no goals", "state_before": "C : Type u\ninst✝² : Category C\nI : MulticospanIndex C\ninst✝¹ : HasProduct I.left\ninst✝ : HasProduct I.right\nb : I.R\n⊢ fstPiMap I ≫ Pi.π I.right b = Pi.π I.left (fstTo I b) ≫ fst I b", "tactic": "simp [fstPiMap]" } ]
[ 230, 18 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 229, 1 ]
Mathlib/RingTheory/DiscreteValuationRing/Basic.lean
DiscreteValuationRing.irreducible_of_span_eq_maximalIdeal
[ { "state_after": "R✝ : Type u\ninst✝⁵ : CommRing R✝\ninst✝⁴ : IsDomain R✝\ninst✝³ : DiscreteValuationRing R✝\nR : Type u_1\ninst✝² : CommRing R\ninst✝¹ : LocalRing R\ninst✝ : IsDomain R\nϖ : R\nhϖ : ϖ ≠ 0\nh : maximalIdeal R = span {ϖ}\nh2 : ¬IsUnit ϖ\n⊢ Irreducible ϖ", "state_before": "R✝ : Type u\ninst✝⁵ ...
[ 92, 54 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 79, 1 ]
Mathlib/RingTheory/NonUnitalSubsemiring/Basic.lean
NonUnitalSubsemiring.coe_centralizer
[]
[ 522, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 520, 1 ]
Mathlib/Data/Complex/Module.lean
Complex.finrank_real_complex_fact
[]
[ 201, 25 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 200, 1 ]
Mathlib/Data/Seq/WSeq.lean
Stream'.WSeq.eq_or_mem_iff_mem
[ { "state_after": "α : Type u\nβ : Type v\nγ : Type w\ns : WSeq α\na a' : α\ns' : WSeq α\nc : Computation (Option (α × WSeq α))\ne : destruct s = c\n⊢ some (a', s') ∈ c → (a ∈ s ↔ a = a' ∨ a ∈ s')", "state_before": "α : Type u\nβ : Type v\nγ : Type w\ns : WSeq α\na a' : α\ns' : WSeq α\n⊢ some (a', s') ∈ dest...
[ 955, 19 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 935, 1 ]
Mathlib/CategoryTheory/Limits/Shapes/StrictInitial.lean
CategoryTheory.Limits.hasStrictTerminalObjects_of_terminal_is_strict
[ { "state_after": "no goals", "state_before": "C : Type u\ninst✝ : Category C\nI : C\nh : ∀ (A : C) (f : I ⟶ A), IsIso f\nI' A : C\nf : I' ⟶ A\nhI' : IsTerminal I'\nthis : IsIso (IsTerminal.from hI' I ≫ f)\n⊢ (inv (IsTerminal.from hI' I ≫ f) ≫ IsTerminal.from hI' I) ≫ f = 𝟙 A", "tactic": "rw [assoc, IsI...
[ 266, 96 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 262, 1 ]
Mathlib/Analysis/Calculus/FDeriv/Basic.lean
hasFDerivWithinAt_inter
[ { "state_after": "no goals", "state_before": "𝕜 : Type u_2\ninst✝⁸ : NontriviallyNormedField 𝕜\nE : Type u_1\ninst✝⁷ : NormedAddCommGroup E\ninst✝⁶ : NormedSpace 𝕜 E\nF : Type u_3\ninst✝⁵ : NormedAddCommGroup F\ninst✝⁴ : NormedSpace 𝕜 F\nG : Type ?u.236817\ninst✝³ : NormedAddCommGroup G\ninst✝² : Normed...
[ 484, 53 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 482, 1 ]
Mathlib/Analysis/Complex/Polynomial.lean
Complex.exists_root
[ { "state_after": "f : ℂ[X]\nhf : ∀ (z : ℂ), ¬IsRoot f z\n⊢ degree f ≤ 0", "state_before": "f : ℂ[X]\nhf : 0 < degree f\n⊢ ∃ z, IsRoot f z", "tactic": "contrapose! hf" }, { "state_after": "case intro\nf : ℂ[X]\nhf : ∀ (z : ℂ), ¬IsRoot f z\nthis : Metric.Bounded (Set.range (fun x => eval x f)⁻¹)\n...
[ 38, 22 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 30, 1 ]
Mathlib/Topology/UniformSpace/Equicontinuity.lean
equicontinuous_iff_continuous
[ { "state_after": "no goals", "state_before": "ι : Type u_1\nκ : Type ?u.79183\nX : Type u_2\nY : Type ?u.79189\nZ : Type ?u.79192\nα : Type u_3\nβ : Type ?u.79198\nγ : Type ?u.79201\n𝓕 : Type ?u.79204\ninst✝⁵ : TopologicalSpace X\ninst✝⁴ : TopologicalSpace Y\ninst✝³ : TopologicalSpace Z\ninst✝² : UniformSp...
[ 260, 91 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 258, 1 ]
Mathlib/Algebra/Order/Field/Basic.lean
max_div_div_right
[]
[ 609, 61 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 608, 1 ]
Mathlib/Data/Nat/Digits.lean
Nat.digits_getLast
[ { "state_after": "case pos\nn b m : ℕ\nh : 1 < b\np : digits b m ≠ []\nq : digits b (m / b) ≠ []\nhm : m = 0\n⊢ List.getLast (digits b m) p = List.getLast (digits b (m / b)) q\n\ncase neg\nn b m : ℕ\nh : 1 < b\np : digits b m ≠ []\nq : digits b (m / b) ≠ []\nhm : ¬m = 0\n⊢ List.getLast (digits b m) p = List.get...
[ 321, 25 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 316, 1 ]
Mathlib/Algebra/GCDMonoid/Finset.lean
Finset.lcm_dvd_iff
[ { "state_after": "α : Type u_1\nβ : Type u_2\nγ : Type ?u.1482\ninst✝¹ : CancelCommMonoidWithZero α\ninst✝ : NormalizedGCDMonoid α\ns s₁ s₂ : Finset β\nf : β → α\na : α\n⊢ (∀ (b : α), b ∈ Multiset.map f s.val → b ∣ a) ↔ ∀ (b : β), b ∈ s → f b ∣ a", "state_before": "α : Type u_1\nβ : Type u_2\nγ : Type ?u.14...
[ 68, 66 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 65, 1 ]
Mathlib/SetTheory/Ordinal/FixedPoint.lean
Ordinal.deriv_eq_enumOrd
[ { "state_after": "case h.e'_3.h.e'_1\nf : Ordinal → Ordinal\nH : IsNormal f\n⊢ fixedPoints f = ⋂ (i : Unit), fixedPoints f", "state_before": "f : Ordinal → Ordinal\nH : IsNormal f\n⊢ deriv f = enumOrd (fixedPoints f)", "tactic": "convert derivFamily_eq_enumOrd fun _ : Unit => H" }, { "state_afte...
[ 555, 34 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 553, 1 ]
Mathlib/Logic/Lemmas.lean
dite_ite_distrib_right
[]
[ 63, 26 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 61, 1 ]
Mathlib/Data/Polynomial/Degree/Definitions.lean
Polynomial.degree_sum_fin_lt
[]
[ 1138, 75 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1134, 1 ]
Mathlib/Data/List/Sort.lean
List.perm_insertionSort
[ { "state_after": "no goals", "state_before": "α : Type uu\nr : α → α → Prop\ninst✝ : DecidableRel r\nb : α\nl : List α\n⊢ insertionSort r (b :: l) ~ b :: l", "tactic": "simpa [insertionSort] using (perm_orderedInsert _ _ _).trans ((perm_insertionSort l).cons b)" } ]
[ 246, 97 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 243, 1 ]
Mathlib/Algebra/Order/Monoid/Canonical/Defs.lean
pos_of_gt
[]
[ 307, 31 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 306, 1 ]
Mathlib/SetTheory/Cardinal/Basic.lean
Cardinal.mk_pempty
[]
[ 1923, 15 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1922, 1 ]
Mathlib/Order/Compare.lean
Ordering.Compares.cmp_eq
[]
[ 176, 27 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 174, 1 ]
Mathlib/CategoryTheory/Subobject/Limits.lean
CategoryTheory.Limits.kernelSubobject_factors
[ { "state_after": "no goals", "state_before": "C : Type u\ninst✝² : Category C\nX Y Z : C\ninst✝¹ : HasZeroMorphisms C\nf : X ⟶ Y\ninst✝ : HasKernel f\nW : C\nh : W ⟶ X\nw : h ≫ f = 0\n⊢ kernel.lift f h w ≫ MonoOver.arrow (MonoOver.mk' (kernel.ι f)) = h", "tactic": "simp" } ]
[ 120, 31 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 118, 1 ]
Mathlib/Data/Set/Sigma.lean
Set.singleton_sigma_singleton
[ { "state_after": "no goals", "state_before": "ι : Type u_1\nι' : Type ?u.8240\nα : ι → Type u_2\nβ : ι → Type ?u.8250\ns s₁ s₂ : Set ι\nt t₁ t₂ : (i : ι) → Set (α i)\nu : Set ((i : ι) × α i)\nx : (i : ι) × α i\ni j : ι\na✝ : α i\na : (i : ι) → α i\n⊢ (Set.Sigma {i} fun i => {a i}) = {{ fst := i, snd := a i ...
[ 131, 40 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 129, 1 ]