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Mathlib/Topology/SubsetProperties.lean
isClopen_range_sigmaMk
[]
[ 1652, 75 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1650, 1 ]
src/lean/Init/Data/Range.lean
Membership.mem.upper
[ { "state_after": "i : Nat\nr : Std.Range\nh : r.start ≤ i ∧ i < r.stop\n⊢ i < r.stop", "state_before": "i : Nat\nr : Std.Range\nh : i ∈ r\n⊢ i < r.stop", "tactic": "simp [Membership.mem] at h" }, { "state_after": "no goals", "state_before": "i : Nat\nr : Std.Range\nh : r.start ≤ i ∧ i < r.st...
[ 81, 12 ]
d5348dfac847a56a4595fb6230fd0708dcb4e7e9
https://github.com/leanprover/lean4
[ 79, 1 ]
Mathlib/Data/Int/ModEq.lean
Int.ModEq.mul_right'
[ { "state_after": "m n a b c d : ℤ\nh : a ≡ b [ZMOD n]\n⊢ c * a ≡ c * b [ZMOD c * n]", "state_before": "m n a b c d : ℤ\nh : a ≡ b [ZMOD n]\n⊢ a * c ≡ b * c [ZMOD n * c]", "tactic": "rw [mul_comm a, mul_comm b, mul_comm n]" }, { "state_after": "no goals", "state_before": "m n a b c d : ℤ\nh :...
[ 140, 61 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 139, 11 ]
Mathlib/LinearAlgebra/Dimension.lean
Basis.le_span
[ { "state_after": "K : Type u\nV V₁ V₂ V₃ : Type v\nV' V'₁ : Type v'\nV'' : Type v''\nι : Type w\nι' : Type w'\nη : Type u₁'\nφ : η → Type ?u.310827\nR : Type u\ninst✝³ : Ring R\ninst✝² : RankCondition R\nM : Type v\ninst✝¹ : AddCommGroup M\ninst✝ : Module R M\nJ : Set M\nv : Basis ι R M\nhJ : span R J = ⊤\nthis...
[ 644, 12 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 620, 1 ]
Mathlib/Algebra/Order/Sub/Canonical.lean
AddLECancellable.lt_tsub_iff_right
[]
[ 435, 77 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 434, 11 ]
Mathlib/LinearAlgebra/AffineSpace/Independent.lean
affineIndependent_def
[]
[ 66, 10 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 62, 1 ]
Mathlib/CategoryTheory/Limits/Shapes/ZeroMorphisms.lean
CategoryTheory.Limits.eq_zero_of_image_eq_zero
[ { "state_after": "no goals", "state_before": "C : Type u\ninst✝³ : Category C\nD : Type u'\ninst✝² : Category D\ninst✝¹ : HasZeroMorphisms C\nX Y : C\nf : X ⟶ Y\ninst✝ : HasImage f\nw : image.ι f = 0\n⊢ f = 0", "tactic": "rw [← image.fac f, w, HasZeroMorphisms.comp_zero]" } ]
[ 151, 55 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 150, 1 ]
Mathlib/Probability/Independence/Basic.lean
ProbabilityTheory.indepSet_iff_measure_inter_eq_mul
[]
[ 611, 85 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 608, 1 ]
Mathlib/Combinatorics/SimpleGraph/Connectivity.lean
SimpleGraph.Walk.coe_support
[ { "state_after": "no goals", "state_before": "V : Type u\nV' : Type v\nV'' : Type w\nG : SimpleGraph V\nG' : SimpleGraph V'\nG'' : SimpleGraph V''\nu v : V\np : Walk G u v\n⊢ ↑(support p) = {u} + ↑(List.tail (support p))", "tactic": "cases p <;> rfl" } ]
[ 629, 21 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 628, 1 ]
Mathlib/RingTheory/IntegralDomain.lean
exists_eq_pow_of_mul_eq_pow_of_coprime
[ { "state_after": "M : Type ?u.9200\ninst✝⁵ : CancelMonoidWithZero M\ninst✝⁴ : Finite M\nR : Type u_1\ninst✝³ : CommSemiring R\ninst✝² : IsDomain R\ninst✝¹ : GCDMonoid R\ninst✝ : Unique Rˣ\na b c : R\nn : ℕ\ncp : IsCoprime a b\nh : a * b = c ^ n\n⊢ GCDMonoid.gcd a b ∣ 1", "state_before": "M : Type ?u.9200\ni...
[ 71, 61 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 63, 1 ]
Mathlib/Data/Set/Pairwise/Basic.lean
Set.Pairwise.insert
[]
[ 168, 28 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 166, 11 ]
Mathlib/Topology/Algebra/Module/Basic.lean
ContinuousLinearMap.eqOn_closure_span
[]
[ 538, 61 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 536, 1 ]
Mathlib/RingTheory/UniqueFactorizationDomain.lean
UniqueFactorizationMonoid.induction_on_coprime
[ { "state_after": "α : Type u_1\nR : Type ?u.1571585\ninst✝⁴ : CancelCommMonoidWithZero R\ninst✝³ : UniqueFactorizationMonoid R\ninst✝² : CancelCommMonoidWithZero α\ninst✝¹ : UniqueFactorizationMonoid α\nβ : Type ?u.1571612\ninst✝ : CancelCommMonoidWithZero β\nP : α → Prop\na : α\nh0 : P 0\nh1 : ∀ {x : α}, IsUni...
[ 1112, 38 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1097, 1 ]
Mathlib/Data/Finset/Lattice.lean
Finset.inf'_cons
[]
[ 918, 33 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 916, 1 ]
Mathlib/Data/Option/Basic.lean
Option.map_injective'
[ { "state_after": "no goals", "state_before": "α : Type u_1\nβ : Type u_2\nγ : Type ?u.3918\nδ : Type ?u.3921\nf g : α → β\nh : Option.map f = Option.map g\nx : α\n⊢ some (f x) = some (g x)", "tactic": "simp only [← map_some', h]" } ]
[ 118, 67 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 117, 1 ]
Mathlib/Data/Set/Intervals/Pi.lean
Set.image_mulSingle_Ioc_right
[]
[ 270, 31 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 268, 1 ]
Mathlib/Analysis/InnerProductSpace/PiL2.lean
Basis.coe_toOrthonormalBasis_repr
[]
[ 502, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 500, 1 ]
Mathlib/Order/SymmDiff.lean
bihimp_bihimp_self
[ { "state_after": "no goals", "state_before": "ι : Type ?u.82995\nα : Type u_1\nβ : Type ?u.83001\nπ : ι → Type ?u.83006\ninst✝ : BooleanAlgebra α\na b c d : α\n⊢ a ⇔ b ⇔ a = b", "tactic": "rw [bihimp_comm, bihimp_bihimp_cancel_left]" } ]
[ 653, 93 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 653, 1 ]
Mathlib/LinearAlgebra/Multilinear/Basis.lean
Basis.ext_multilinear_fin
[ { "state_after": "case zero\nR : Type u_1\nι : Type ?u.528\nn : ℕ\nM✝ : Fin n → Type u_2\nM₂ : Type u_3\nM₃ : Type ?u.541\ninst✝⁸ : CommSemiring R\ninst✝⁷ : AddCommMonoid M₂\ninst✝⁶ : AddCommMonoid M₃\ninst✝⁵ : (i : Fin n) → AddCommMonoid (M✝ i)\ninst✝⁴ : (i : Fin n) → Module R (M✝ i)\ninst✝³ : Module R M₂\nins...
[ 57, 40 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 37, 1 ]
Mathlib/Data/Finset/Lattice.lean
Finset.comp_inf'_eq_inf'_comp
[]
[ 961, 57 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 959, 1 ]
Mathlib/RingTheory/UniqueFactorizationDomain.lean
UniqueFactorizationMonoid.exists_mem_factors
[ { "state_after": "case intro.intro\nα : Type u_1\ninst✝² : CancelCommMonoidWithZero α\ninst✝¹ : DecidableEq α\ninst✝ : UniqueFactorizationMonoid α\nx : α\nhx : x ≠ 0\nh : ¬IsUnit x\np' : α\nhp' : Irreducible p'\nhp'x : p' ∣ x\n⊢ ∃ p, p ∈ factors x", "state_before": "α : Type u_1\ninst✝² : CancelCommMonoidWi...
[ 506, 16 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 503, 1 ]
Mathlib/Analysis/Complex/Basic.lean
IsROrC.im_eq_complex_im
[]
[ 434, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 433, 1 ]
Mathlib/AlgebraicTopology/DoldKan/Projections.lean
AlgebraicTopology.DoldKan.HigherFacesVanish.of_P
[ { "state_after": "case h\nC : Type u_1\ninst✝¹ : Category C\ninst✝ : Preadditive C\nX : SimplicialObject C\nn : ℕ\nj : Fin (n + 1)\nhj₁ : n + 1 ≤ ↑j + 0\n⊢ False", "state_before": "C : Type u_1\ninst✝¹ : Category C\ninst✝ : Preadditive C\nX : SimplicialObject C\nn : ℕ\nj : Fin (n + 1)\nhj₁ : n + 1 ≤ ↑j + 0\...
[ 118, 31 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 111, 1 ]
Mathlib/Analysis/NormedSpace/OperatorNorm.lean
ContinuousLinearMap.op_norm_le_of_shell
[]
[ 233, 100 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 231, 1 ]
Mathlib/LinearAlgebra/UnitaryGroup.lean
Matrix.UnitaryGroup.coe_toGL
[]
[ 178, 71 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 178, 1 ]
Mathlib/AlgebraicGeometry/PrimeSpectrum/Maximal.lean
PrimeSpectrum.iInf_localization_eq_bot
[ { "state_after": "case h\nR : Type u\ninst✝⁴ : CommRing R\ninst✝³ : IsDomain R\nK : Type v\ninst✝² : Field K\ninst✝¹ : Algebra R K\ninst✝ : IsFractionRing R K\nx : K\n⊢ (x ∈\n ⨅ (v : PrimeSpectrum R),\n Localization.subalgebra.ofField K (Ideal.primeCompl v.asIdeal)\n (_ : Ideal.primeCompl v...
[ 143, 83 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 134, 1 ]
Mathlib/RingTheory/Subring/Basic.lean
Subring.mem_comap
[]
[ 580, 10 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 579, 1 ]
Mathlib/Topology/Algebra/Order/Field.lean
tendsto_const_mul_pow_nhds_iff'
[ { "state_after": "case inl\n𝕜 : Type u_1\nα : Type ?u.36297\ninst✝² : LinearOrderedField 𝕜\ninst✝¹ : TopologicalSpace 𝕜\ninst✝ : OrderTopology 𝕜\nl : Filter α\nf g : α → 𝕜\nc d : 𝕜\n⊢ Tendsto (fun x => c * x ^ 0) atTop (𝓝 d) ↔ (c = 0 ∨ 0 = 0) ∧ c = d\n\ncase inr\n𝕜 : Type u_1\nα : Type ?u.36297\ninst✝² ...
[ 185, 62 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 176, 1 ]
Mathlib/GroupTheory/Submonoid/Pointwise.lean
AddSubmonoid.pow_subset_pow
[]
[ 692, 53 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 691, 1 ]
Mathlib/Topology/UniformSpace/UniformEmbedding.lean
UniformInducing.denseInducing
[]
[ 118, 36 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 115, 1 ]
Mathlib/Logic/Equiv/Basic.lean
Equiv.sumProdDistrib_apply_right
[]
[ 917, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 915, 1 ]
Mathlib/Data/Seq/WSeq.lean
Stream'.WSeq.join_nil
[]
[ 756, 15 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 755, 1 ]
Mathlib/SetTheory/Ordinal/FixedPoint.lean
Ordinal.nfp_mul_zero
[ { "state_after": "a : Ordinal\n⊢ ∀ (n : ℕ), ((fun x => a * x)^[n]) 0 ≤ 0", "state_before": "a : Ordinal\n⊢ nfp (fun x => a * x) 0 = 0", "tactic": "rw [← Ordinal.le_zero, nfp_le_iff]" }, { "state_after": "a : Ordinal\nn : ℕ\n⊢ ((fun x => a * x)^[n]) 0 ≤ 0", "state_before": "a : Ordinal\n⊢ ∀ (...
[ 633, 49 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 629, 1 ]
Mathlib/Data/Vector/Basic.lean
Vector.mk_toList
[]
[ 86, 21 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 85, 1 ]
Mathlib/Tactic/IrreducibleDef.lean
Lean.Elab.Command.$n_def
[]
[ 110, 10 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 105, 39 ]
Mathlib/RingTheory/Int/Basic.lean
Int.Prime.dvd_mul
[ { "state_after": "no goals", "state_before": "m n : ℤ\np : ℕ\nhp : Nat.Prime p\nh : ↑p ∣ m * n\n⊢ p ∣ natAbs m ∨ p ∣ natAbs n", "tactic": "rwa [← hp.dvd_mul, ← Int.natAbs_mul, ←Int.coe_nat_dvd_left]" } ]
[ 272, 62 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 270, 1 ]
Mathlib/Algebra/Lie/Free.lean
FreeLieAlgebra.lift_of_apply
[ { "state_after": "no goals", "state_before": "R : Type u\nX : Type v\ninst✝² : CommRing R\nL : Type w\ninst✝¹ : LieRing L\ninst✝ : LieAlgebra R L\nf : X → L\nx : X\n⊢ ↑(↑(lift R) f) (of R x) = f x", "tactic": "rw [← @Function.comp_apply _ _ _ (lift R f) (of R) x, of_comp_lift]" } ]
[ 261, 71 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 260, 1 ]
Mathlib/MeasureTheory/Function/LpSeminorm.lean
MeasurableEquiv.memℒp_map_measure_iff
[]
[ 948, 46 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 946, 1 ]
Mathlib/LinearAlgebra/Dimension.lean
LinearMap.rank_comp_le_left
[ { "state_after": "K : Type u\nV V₁ V₂ V₃ : Type v\nV' V'₁ : Type v'\nV'' : Type v''\nι : Type w\nι' : Type w'\nη : Type u₁'\nφ : η → Type ?u.1108176\ninst✝⁸ : Ring K\ninst✝⁷ : AddCommGroup V\ninst✝⁶ : Module K V\ninst✝⁵ : AddCommGroup V₁\ninst✝⁴ : Module K V₁\ninst✝³ : AddCommGroup V'\ninst✝² : Module K V'\nins...
[ 1336, 31 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1333, 1 ]
Mathlib/SetTheory/Ordinal/Arithmetic.lean
Ordinal.blsub_eq_blsub
[ { "state_after": "no goals", "state_before": "α : Type ?u.349286\nβ : Type ?u.349289\nγ : Type ?u.349292\nr✝ : α → α → Prop\ns : β → β → Prop\nt : γ → γ → Prop\nι : Type u\nr r' : ι → ι → Prop\ninst✝¹ : IsWellOrder ι r\ninst✝ : IsWellOrder ι r'\nf : ι → Ordinal\n⊢ blsub (type r) (bfamilyOfFamily' r f) = bls...
[ 1788, 38 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1785, 1 ]
Mathlib/MeasureTheory/Measure/OuterMeasure.lean
MeasureTheory.OuterMeasure.map_ofFunction
[ { "state_after": "α : Type u_2\nm : Set α → ℝ≥0∞\nm_empty : m ∅ = 0\nβ : Type u_1\nf : α → β\nhf : Injective f\ns : Set β\n⊢ ↑(OuterMeasure.ofFunction (fun s => m (f ⁻¹' s)) m_empty) s ≤ ↑(↑(map f) (OuterMeasure.ofFunction m m_empty)) s", "state_before": "α : Type u_2\nm : Set α → ℝ≥0∞\nm_empty : m ∅ = 0\nβ...
[ 809, 29 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 799, 1 ]
Mathlib/Order/Filter/Basic.lean
Filter.mem_comap
[]
[ 2054, 76 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 2054, 9 ]
Mathlib/Data/Nat/Size.lean
Nat.size_eq_zero
[ { "state_after": "n : ℕ\nthis : 0 < size n ↔ 0 < n\n⊢ size n = 0 ↔ n = 0", "state_before": "n : ℕ\n⊢ size n = 0 ↔ n = 0", "tactic": "have := @size_pos n" }, { "state_after": "n : ℕ\nthis : ¬size n = 0 ↔ ¬n = 0\n⊢ size n = 0 ↔ n = 0", "state_before": "n : ℕ\nthis : 0 < size n ↔ 0 < n\n⊢ size ...
[ 166, 90 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 165, 1 ]
Mathlib/FieldTheory/RatFunc.lean
RatFunc.mk_coe_def
[ { "state_after": "no goals", "state_before": "K : Type u\ninst✝¹ : CommRing K\ninst✝ : IsDomain K\np : K[X]\nq : { x // x ∈ K[X]⁰ }\n⊢ RatFunc.mk p ↑q = { toFractionRing := IsLocalization.mk' (FractionRing K[X]) p q }", "tactic": "simp only [mk_eq_div', ← Localization.mk_eq_mk', FractionRing.mk_eq_div]"...
[ 210, 75 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 207, 1 ]
Mathlib/Data/Ordmap/Ordset.lean
Ordnode.Valid'.node4L_lemma₃
[ { "state_after": "no goals", "state_before": "α : Type ?u.284064\ninst✝ : Preorder α\nb c d : ℕ\nmr₁ : 2 * d ≤ b + c + 1\nmm₁ : b ≤ 3 * c\n⊢ d ≤ 3 * c", "tactic": "linarith" } ]
[ 1150, 14 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1149, 1 ]
Mathlib/RingTheory/UniqueFactorizationDomain.lean
Associates.mem_factors'_of_dvd
[ { "state_after": "case intro.intro\nα : Type u_1\ninst✝¹ : CancelCommMonoidWithZero α\ndec_irr : (p : Associates α) → Decidable (Irreducible p)\ninst✝ : UniqueFactorizationMonoid α\ndec : DecidableEq α\ndec' : DecidableEq (Associates α)\na p : α\nha0 : a ≠ 0\nhp : Irreducible p\nhd : p ∣ a\nq : α\nhq : q ∈ Uniq...
[ 1609, 63 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1605, 1 ]
Mathlib/Algebra/GroupWithZero/Power.lean
zpow_bit1₀
[ { "state_after": "G₀ : Type u_1\ninst✝ : GroupWithZero G₀\na : G₀\nn : ℤ\n⊢ a ≠ 0 ∨ bit0 n + 1 ≠ 0 ∨ bit0 n = 0 ∧ 1 = 0", "state_before": "G₀ : Type u_1\ninst✝ : GroupWithZero G₀\na : G₀\nn : ℤ\n⊢ a ^ bit1 n = a ^ n * a ^ n * a", "tactic": "rw [← zpow_bit0, bit1, zpow_add', zpow_one]" }, { "stat...
[ 151, 21 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 148, 1 ]
Mathlib/Order/LiminfLimsup.lean
GaloisConnection.l_limsup_le
[ { "state_after": "α : Type u_3\nβ : Type u_1\nγ : Type u_2\nι : Type ?u.205644\ninst✝¹ : ConditionallyCompleteLattice β\ninst✝ : ConditionallyCompleteLattice γ\nf : Filter α\nv : α → β\nl : β → γ\nu : γ → β\ngc : GaloisConnection l u\nhlv : autoParam (IsBoundedUnder (fun x x_1 => x ≤ x_1) f fun x => l (v x)) _a...
[ 1214, 34 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1205, 1 ]
Mathlib/Analysis/BoxIntegral/Partition/Tagged.lean
BoxIntegral.Prepartition.forall_biUnionTagged
[ { "state_after": "ι : Type u_1\nI J : Box ι\np : (ι → ℝ) → Box ι → Prop\nπ : Prepartition I\nπi : (J : Box ι) → TaggedPrepartition J\n⊢ (∀ (J : Box ι), (∃ J', J' ∈ π ∧ J ∈ πi J') → p (TaggedPrepartition.tag (biUnionTagged π πi) J) J) ↔\n ∀ (J : Box ι), J ∈ π → ∀ (J' : Box ι), J' ∈ πi J → p (TaggedPrepartitio...
[ 164, 24 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 155, 1 ]
Mathlib/Order/Hom/Bounded.lean
BoundedOrderHom.comp_apply
[]
[ 653, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 651, 1 ]
Mathlib/Order/Filter/Pointwise.lean
Filter.one_neBot
[]
[ 110, 20 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 109, 1 ]
Mathlib/Data/Polynomial/Degree/TrailingDegree.lean
Polynomial.natTrailingDegree_le_of_trailingDegree_le
[ { "state_after": "R : Type u\nS : Type v\na b : R\nn✝ m : ℕ\ninst✝ : Semiring R\np q r : R[X]\nn : ℕ\nhp : p ≠ 0\nH : ↑n ≤ ↑(natTrailingDegree p)\n⊢ n ≤ natTrailingDegree p", "state_before": "R : Type u\nS : Type v\na b : R\nn✝ m : ℕ\ninst✝ : Semiring R\np q r : R[X]\nn : ℕ\nhp : p ≠ 0\nH : ↑n ≤ trailingDeg...
[ 189, 32 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 186, 1 ]
Mathlib/Analysis/SpecificLimits/Basic.lean
tsum_geometric_nNReal
[]
[ 274, 39 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 273, 1 ]
Mathlib/LinearAlgebra/SesquilinearForm.lean
Submodule.le_orthogonalBilin_orthogonalBilin
[]
[ 349, 84 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 348, 1 ]
Mathlib/CategoryTheory/Limits/Shapes/Products.lean
CategoryTheory.Limits.has_smallest_coproducts_of_hasCoproducts
[]
[ 304, 100 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 302, 1 ]
Mathlib/MeasureTheory/Function/ConvergenceInMeasure.lean
MeasureTheory.tendstoInMeasure_of_tendsto_Lp
[]
[ 363, 49 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 359, 1 ]
Mathlib/CategoryTheory/Preadditive/Basic.lean
CategoryTheory.Preadditive.hasCoequalizer_of_hasCokernel
[]
[ 424, 90 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 421, 1 ]
Mathlib/Topology/MetricSpace/Equicontinuity.lean
Metric.equicontinuousAt_of_continuity_modulus
[ { "state_after": "α : Type u_3\nβ : Type u_2\nι✝ : Type ?u.3074\ninst✝¹ : PseudoMetricSpace α\nι : Type u_1\ninst✝ : TopologicalSpace β\nx₀ : β\nb : β → ℝ\nb_lim : Tendsto b (𝓝 x₀) (𝓝 0)\nF : ι → β → α\nH : ∀ᶠ (x : β) in 𝓝 x₀, ∀ (i : ι), dist (F i x₀) (F i x) ≤ b x\n⊢ ∀ (ε : ℝ), ε > 0 → ∀ᶠ (x : β) in 𝓝 x₀, ...
[ 100, 44 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 93, 1 ]
Mathlib/MeasureTheory/Function/SimpleFuncDenseLp.lean
MeasureTheory.Lp.simpleFunc.coe_indicatorConst
[]
[ 710, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 708, 1 ]
Mathlib/Analysis/Calculus/FDeriv/Basic.lean
HasFDerivWithinAt.congr'
[]
[ 889, 21 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 887, 1 ]
Mathlib/Data/Set/Prod.lean
Set.prod_nonempty_iff
[]
[ 321, 51 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 320, 1 ]
Mathlib/Analysis/Calculus/ContDiff.lean
ContDiffWithinAt.comp
[ { "state_after": "𝕜 : Type u_1\ninst✝¹⁰ : NontriviallyNormedField 𝕜\nD : Type uD\ninst✝⁹ : NormedAddCommGroup D\ninst✝⁸ : NormedSpace 𝕜 D\nE : Type uE\ninst✝⁷ : NormedAddCommGroup E\ninst✝⁶ : NormedSpace 𝕜 E\nF : Type uF\ninst✝⁵ : NormedAddCommGroup F\ninst✝⁴ : NormedSpace 𝕜 F\nG : Type uG\ninst✝³ : Normed...
[ 697, 41 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 673, 1 ]
Mathlib/MeasureTheory/MeasurableSpace.lean
MeasurableEquiv.measurable
[]
[ 1188, 21 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1187, 11 ]
Mathlib/Topology/Algebra/Module/Multilinear.lean
ContinuousMultilinearMap.map_smul_univ
[]
[ 472, 39 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 470, 1 ]
Mathlib/RingTheory/Ideal/MinimalPrime.lean
Ideal.radical_minimalPrimes
[ { "state_after": "R : Type u_1\nS : Type ?u.3948\ninst✝¹ : CommRing R\ninst✝ : CommRing S\nI J : Ideal R\n⊢ minimals (fun x x_1 => x ≤ x_1) {p | IsPrime p ∧ radical I ≤ p} =\n minimals (fun x x_1 => x ≤ x_1) {p | IsPrime p ∧ I ≤ p}", "state_before": "R : Type u_1\nS : Type ?u.3948\ninst✝¹ : CommRing R\ni...
[ 85, 63 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 75, 1 ]
Std/Data/String/Lemmas.lean
String.extract_cons_addChar
[ { "state_after": "c : Char\ncs : List Char\nb e : Pos\n⊢ (if e.byteIdx ≤ b.byteIdx then \"\" else { data := extract.go₁ (c :: cs) 0 (b + c) (e + c) }) =\n if b.byteIdx ≥ e.byteIdx then \"\" else { data := extract.go₁ cs 0 b e }", "state_before": "c : Char\ncs : List Char\nb e : Pos\n⊢ extract { data := c...
[ 436, 49 ]
e68aa8f5fe47aad78987df45f99094afbcb5e936
https://github.com/leanprover/std4
[ 433, 1 ]
Std/Data/List/Lemmas.lean
List.filterMap_append
[ { "state_after": "case cons\nα : Type u_1\nβ : Type u_2\nl' : List α\nf : α → Option β\nhead✝ : α\ntail✝ : List α\ntail_ih✝ : filterMap f (tail✝ ++ l') = filterMap f tail✝ ++ filterMap f l'\n⊢ (match f head✝ with\n | none => filterMap f (tail✝ ++ l')\n | some b => b :: filterMap f (tail✝ ++ l')) =\n (m...
[ 1164, 43 ]
e68aa8f5fe47aad78987df45f99094afbcb5e936
https://github.com/leanprover/std4
[ 1162, 1 ]
Mathlib/Data/Nat/Choose/Basic.lean
Nat.factorial_mul_factorial_dvd_factorial
[ { "state_after": "n k : ℕ\nhk : k ≤ n\n⊢ k ! * (n - k)! ∣ choose n k * (k ! * (n - k)!)", "state_before": "n k : ℕ\nhk : k ≤ n\n⊢ k ! * (n - k)! ∣ n !", "tactic": "rw [← choose_mul_factorial_mul_factorial hk, mul_assoc]" }, { "state_after": "no goals", "state_before": "n k : ℕ\nhk : k ≤ n\n⊢...
[ 185, 82 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 184, 1 ]
Mathlib/MeasureTheory/Integral/IntegralEqImproper.lean
MeasureTheory.aecover_Iic
[]
[ 139, 83 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 139, 1 ]
Mathlib/Topology/Constructions.lean
IsClosed.closedEmbedding_subtype_val
[]
[ 1038, 33 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1036, 8 ]
Mathlib/RingTheory/Localization/AtPrime.lean
Localization.localRingHom_comp
[ { "state_after": "no goals", "state_before": "R : Type ?u.339407\ninst✝⁴ : CommSemiring R\nM : Submonoid R\nS✝ : Type ?u.339596\ninst✝³ : CommSemiring S✝\ninst✝² : Algebra R S✝\nP : Type ?u.339776\ninst✝¹ : CommSemiring P\nI : Ideal R\nhI : Ideal.IsPrime I\nS : Type ?u.339916\ninst✝ : CommSemiring S\nJ : Id...
[ 266, 75 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 261, 1 ]
Mathlib/MeasureTheory/Constructions/BorelSpace/Metrizable.lean
measurable_of_tendsto_ennreal
[]
[ 48, 46 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 46, 1 ]
Mathlib/Data/MvPolynomial/Basic.lean
MvPolynomial.C_injective
[]
[ 240, 29 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 238, 1 ]
Mathlib/Data/Set/Function.lean
Set.SurjOn.leftInvOn_of_rightInvOn
[ { "state_after": "α : Type u_1\nβ : Type u_2\nγ : Type ?u.62981\nι : Sort ?u.62984\nπ : α → Type ?u.62989\ns s₁ s₂ : Set α\nt t₁ t₂ : Set β\np : Set γ\nf f₁ f₂ f₃ : α → β\ng g₁ g₂ : β → γ\nf' f₁' f₂' : β → α\ng' : γ → β\na : α\nb : β\nhf : SurjOn f s t\nhf' : RightInvOn f f' s\ny : β\nhy : y ∈ t\nx : α\nhx : x ...
[ 1161, 21 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1158, 1 ]
Mathlib/Analysis/SpecialFunctions/Log/Base.lean
Real.logb_ne_zero_of_pos_of_ne_one
[]
[ 240, 50 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 239, 1 ]
Mathlib/Tactic/Ring/Basic.lean
Mathlib.Tactic.Ring.add_pf_add_overlap
[ { "state_after": "u : Lean.Level\nR : Type u_1\nα : Q(Type u)\nsα : Q(CommSemiring «$α»)\ninst✝ : CommSemiring R\na₁ b₁ a₂ b₂ : R\n⊢ a₁ + a₂ + (b₁ + b₂) = a₁ + b₁ + (a₂ + b₂)", "state_before": "u : Lean.Level\nR : Type u_1\nα : Q(Type u)\nsα : Q(CommSemiring «$α»)\ninst✝ : CommSemiring R\na₁ b₁ c₁ a₂ b₂ c₂ ...
[ 315, 46 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 313, 1 ]
Mathlib/Topology/Basic.lean
mapClusterPt_iff
[ { "state_after": "α : Type u\nβ : Type v\nι✝ : Sort w\na : α\ns s₁ s₂ t : Set α\np p₁ p₂ : α → Prop\ninst✝ : TopologicalSpace α\nι : Type u_1\nx : α\nF : Filter ι\nu : ι → α\n⊢ (∀ {p : α → Prop}, (∀ᶠ (x : α) in 𝓝 x, p x) → ∃ᶠ (a : ι) in F, p (u a)) ↔\n ∀ (s : Set α), s ∈ 𝓝 x → ∃ᶠ (a : ι) in F, u a ∈ s", ...
[ 1153, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1150, 1 ]
Std/Logic.lean
forall_and
[]
[ 424, 82 ]
e68aa8f5fe47aad78987df45f99094afbcb5e936
https://github.com/leanprover/std4
[ 423, 1 ]
Mathlib/LinearAlgebra/Matrix/Transvection.lean
Matrix.TransvectionStruct.mul_sumInl_toMatrix_prod
[ { "state_after": "case nil\nn : Type u_1\np : Type u_2\nR : Type u₂\n𝕜 : Type ?u.68668\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\nM : Matrix n n R\nN : Matrix p p R\n⊢ fromBlocks ...
[ 283, 52 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 277, 1 ]
Mathlib/CategoryTheory/Limits/Shapes/Pullbacks.lean
CategoryTheory.Limits.pullback_symmetry_hom_of_epi_eq
[ { "state_after": "no goals", "state_before": "C : Type u\ninst✝² : Category C\nD : Type u₂\ninst✝¹ : Category D\nW X Y Z : C\nf : X ⟶ Y\ninst✝ : Epi f\n⊢ (pushoutSymmetry f f).hom = 𝟙 (pushout f f)", "tactic": "ext <;> simp [inl_eq_inr_of_epi_eq]" } ]
[ 1972, 38 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1971, 1 ]
Mathlib/Data/MvPolynomial/Variables.lean
MvPolynomial.degrees_C
[]
[ 114, 45 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 113, 1 ]
Mathlib/Computability/TuringMachine.lean
Turing.Tape.move_right_mk'
[ { "state_after": "no goals", "state_before": "Γ : Type u_1\ninst✝ : Inhabited Γ\nL R : ListBlank Γ\n⊢ move Dir.right (mk' L R) = mk' (ListBlank.cons (ListBlank.head R) L) (ListBlank.tail R)", "tactic": "simp only [Tape.move, Tape.mk', ListBlank.head_cons, eq_self_iff_true, ListBlank.cons_head_tail,\n a...
[ 594, 39 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 591, 1 ]
Mathlib/MeasureTheory/Integral/IntervalIntegral.lean
intervalIntegral.integral_add_adjacent_intervals
[ { "state_after": "no goals", "state_before": "ι : Type ?u.15374404\n𝕜 : Type ?u.15374407\nE : Type u_1\nF : Type ?u.15374413\nA : Type ?u.15374416\ninst✝² : NormedAddCommGroup E\ninst✝¹ : CompleteSpace E\ninst✝ : NormedSpace ℝ E\na b c d : ℝ\nf g : ℝ → E\nμ : MeasureTheory.Measure ℝ\nhab : IntervalIntegrab...
[ 905, 90 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 902, 1 ]
Mathlib/Init/Function.lean
Function.LeftInverse.injective
[]
[ 99, 35 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 98, 1 ]
Mathlib/Data/Polynomial/Splits.lean
Polynomial.splits_mul
[ { "state_after": "case h.e'_4\nF : Type u\nK : Type v\nL : Type w\ninst✝² : CommRing K\ninst✝¹ : Field L\ninst✝ : Field F\ni : K →+* L\nf g : K[X]\nhf : Splits i f\nhg : Splits i g\nh : ¬map i (f * g) = 0\np : L[X]\nhp : Irreducible p\nhpf : p ∣ map i (f * g)\n⊢ map i f * map i g = map i (f * g)", "state_be...
[ 121, 59 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 114, 1 ]
Mathlib/MeasureTheory/Function/LpSpace.lean
MeasureTheory.Lp.antitone
[]
[ 182, 78 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 181, 11 ]
Mathlib/Algebra/GCDMonoid/Basic.lean
Associates.out_injective
[]
[ 264, 40 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 263, 1 ]
Mathlib/Analysis/Analytic/Basic.lean
HasFPowerSeriesOnBall.analyticAt
[]
[ 424, 34 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 423, 1 ]
Mathlib/Data/Real/Sqrt.lean
NNReal.sqrt_eq_iff_sq_eq
[]
[ 64, 56 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 63, 1 ]
Mathlib/Analysis/NormedSpace/Banach.lean
ContinuousLinearMap.coe_ofIsClosedGraph
[ { "state_after": "case h\n𝕜 : Type u_3\ninst✝⁶ : NontriviallyNormedField 𝕜\nE : Type u_1\ninst✝⁵ : NormedAddCommGroup E\ninst✝⁴ : NormedSpace 𝕜 E\nF : Type u_2\ninst✝³ : NormedAddCommGroup F\ninst✝² : NormedSpace 𝕜 F\nf : E →L[𝕜] F\ninst✝¹ : CompleteSpace F\ninst✝ : CompleteSpace E\ng : E →ₗ[𝕜] F\nhg : Is...
[ 500, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 497, 1 ]
Mathlib/Logic/Relation.lean
Equivalence.comap
[]
[ 117, 73 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 116, 1 ]
Mathlib/Data/Finset/Pointwise.lean
Finset.div_subset_div_left
[]
[ 644, 21 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 643, 1 ]
Mathlib/Algebra/Ring/BooleanRing.lean
toBoolRing_inj
[]
[ 424, 10 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 423, 1 ]
Mathlib/Algebra/Order/ToIntervalMod.lean
toIocMod_eq_toIocMod
[ { "state_after": "case refine'_1\nα : Type u_1\ninst✝ : LinearOrderedAddCommGroup α\nhα : Archimedean α\np : α\nhp : 0 < p\na b c : α\nn : ℤ\nh : toIocMod hp a b = toIocMod hp a c\n⊢ c - b = (toIocDiv hp a c - toIocDiv hp a b) • p\n\ncase refine'_2\nα : Type u_1\ninst✝ : LinearOrderedAddCommGroup α\nhα : Archim...
[ 583, 32 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 576, 1 ]
Mathlib/NumberTheory/LucasLehmer.lean
LucasLehmer.sMod_lt
[ { "state_after": "p : ℕ\nw : 0 < p\ni : ℕ\n⊢ sMod p i % (2 ^ p - 1) < 2 ^ p - 1", "state_before": "p : ℕ\nw : 0 < p\ni : ℕ\n⊢ sMod p i < 2 ^ p - 1", "tactic": "rw [← sMod_mod]" }, { "state_after": "p : ℕ\nw : 0 < p\ni : ℕ\n⊢ abs (2 ^ p - 1) = 2 ^ p - 1", "state_before": "p : ℕ\nw : 0 < p\ni ...
[ 120, 46 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 117, 1 ]
Mathlib/Order/CompleteLattice.lean
iInf_subtype
[]
[ 1202, 24 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1201, 1 ]
Mathlib/Data/Real/Sign.lean
Real.inv_sign
[ { "state_after": "case inl\nr : ℝ\nhn : sign r = -1\n⊢ (sign r)⁻¹ = sign r\n\ncase inr.inl\nr : ℝ\nhz : sign r = 0\n⊢ (sign r)⁻¹ = sign r\n\ncase inr.inr\nr : ℝ\nhp : sign r = 1\n⊢ (sign r)⁻¹ = sign r", "state_before": "r : ℝ\n⊢ (sign r)⁻¹ = sign r", "tactic": "obtain hn | hz | hp := sign_apply_eq r" ...
[ 115, 18 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 108, 1 ]
Mathlib/Algebra/Hom/Ring.lean
NonUnitalRingHom.ext
[]
[ 181, 18 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 180, 1 ]
Mathlib/Topology/Basic.lean
isClosed_iff_clusterPt
[ { "state_after": "no goals", "state_before": "α : Type u\nβ : Type v\nι : Sort w\na : α\ns✝ s₁ s₂ t : Set α\np p₁ p₂ : α → Prop\ninst✝ : TopologicalSpace α\ns : Set α\n⊢ closure s ⊆ s ↔ ∀ (a : α), ClusterPt a (𝓟 s) → a ∈ s", "tactic": "simp only [subset_def, mem_closure_iff_clusterPt]" } ]
[ 1368, 95 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1365, 1 ]
Mathlib/Algebra/Homology/HomologicalComplex.lean
ChainComplex.mk_d_2_0
[ { "state_after": "ι : Type ?u.184152\nV : Type u\ninst✝¹ : Category V\ninst✝ : HasZeroMorphisms V\nX₀ X₁ X₂ : V\nd₀ : X₁ ⟶ X₀\nd₁ : X₂ ⟶ X₁\ns : d₁ ≫ d₀ = 0\nsucc :\n (t : (X₀ : V) ×' (X₁ : V) ×' (X₂ : V) ×' (d₀ : X₁ ⟶ X₀) ×' (d₁ : X₂ ⟶ X₁) ×' d₁ ≫ d₀ = 0) →\n (X₃ : V) ×' (d₂ : X₃ ⟶ t.snd.snd.fst) ×' d₂ ≫ t...
[ 744, 36 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 742, 1 ]