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start
list
Mathlib/NumberTheory/PellMatiyasevic.lean
Pell.xz_succ_succ
[ { "state_after": "a : ℕ\na1 : 1 < a\nn : ℕ\n⊢ ↑(xn a1 (n + 2)) + ↑(xn a1 n) = ↑(2 * a) * ↑(xn a1 (n + 1))", "state_before": "a : ℕ\na1 : 1 < a\nn : ℕ\n⊢ xz a1 (n + 2) + xz a1 n = ↑(2 * a) * xz a1 (n + 1)", "tactic": "delta xz" }, { "state_after": "no goals", "state_before": "a : ℕ\na1 : 1 < ...
[ 540, 87 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 539, 1 ]
Mathlib/Algebra/Lie/Basic.lean
LieEquiv.bijective
[]
[ 662, 28 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 661, 11 ]
Mathlib/Analysis/SpecialFunctions/Complex/LogDeriv.lean
Complex.hasStrictDerivAt_log
[ { "state_after": "h : 0 < 0.re ∨ 0.im ≠ 0\n⊢ False", "state_before": "x : ℂ\nh : 0 < x.re ∨ x.im ≠ 0\n⊢ x ≠ 0", "tactic": "rintro rfl" }, { "state_after": "no goals", "state_before": "h : 0 < 0.re ∨ 0.im ≠ 0\n⊢ False", "tactic": "simp [lt_irrefl] at h" }, { "state_after": "no goa...
[ 59, 58 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 56, 1 ]
Mathlib/LinearAlgebra/Multilinear/Basic.lean
MultilinearMap.comp_linearEquiv_eq_zero_iff
[ { "state_after": "R : Type u\nι : Type u'\nn : ℕ\nM : Fin (Nat.succ n) → Type v\nM₁ : ι → Type v₁\nM₂ : Type v₂\nM₃ : Type v₃\nM' : Type v'\ninst✝¹⁴ : Semiring R\ninst✝¹³ : (i : Fin (Nat.succ n)) → AddCommMonoid (M i)\ninst✝¹² : (i : ι) → AddCommMonoid (M₁ i)\ninst✝¹¹ : AddCommMonoid M₂\ninst✝¹⁰ : AddCommMonoid...
[ 446, 79 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 443, 1 ]
Mathlib/LinearAlgebra/Projection.lean
Submodule.linearProjOfIsCompl_apply_right'
[]
[ 179, 49 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 177, 1 ]
Mathlib/SetTheory/Game/PGame.lean
PGame.mk_lf_mk
[]
[ 459, 19 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 457, 1 ]
Mathlib/Init/Data/Int/Basic.lean
Int.neg_eq_neg
[]
[ 73, 80 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 73, 11 ]
Mathlib/RingTheory/WittVector/Basic.lean
WittVector.mapFun.injective
[ { "state_after": "p : ℕ\nR : Type ?u.19105\nS : Type ?u.19108\nT : Type ?u.19111\nhp : Fact (Nat.Prime p)\ninst✝² : CommRing R\ninst✝¹ : CommRing S\ninst✝ : CommRing T\nα : Type u_1\nβ : Type u_2\nf : α → β\nhf : Injective f\na₁✝ a₂✝ : 𝕎 α\nh : mapFun f a₁✝ = mapFun f a₂✝\n⊢ a₁✝ = a₂✝", "state_before": "p ...
[ 83, 50 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 80, 1 ]
Std/Data/Nat/Lemmas.lean
Nat.le_of_le_of_sub_le_sub_right
[ { "state_after": "n m k : Nat\nh₀ : succ k ≤ succ m\nh₁ : n - k ≤ m - k\n⊢ succ n ≤ succ m", "state_before": "n m k : Nat\nh₀ : succ k ≤ succ m\nh₁ : succ n - succ k ≤ succ m - succ k\n⊢ succ n ≤ succ m", "tactic": "simp [succ_sub_succ] at h₁" }, { "state_after": "no goals", "state_before": ...
[ 129, 86 ]
e68aa8f5fe47aad78987df45f99094afbcb5e936
https://github.com/leanprover/std4
[ 122, 11 ]
Mathlib/MeasureTheory/Integral/Lebesgue.lean
MeasureTheory.exists_pos_set_lintegral_lt_of_measure_lt
[ { "state_after": "case intro.intro\nα : Type u_1\nβ : Type ?u.487463\nγ : Type ?u.487466\nδ : Type ?u.487469\nm : MeasurableSpace α\nμ ν : Measure α\nf : α → ℝ≥0∞\nh : (∫⁻ (x : α), f x ∂μ) ≠ ⊤\nε : ℝ≥0∞\nhε : ε ≠ 0\nε₂ : ℝ≥0∞\nhε₂0 : 0 < ε₂\nhε₂ε : ε₂ < ε\n⊢ ∃ δ, δ > 0 ∧ ∀ (s : Set α), ↑↑μ s < δ → (∫⁻ (x : α) i...
[ 510, 44 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 483, 1 ]
Mathlib/CategoryTheory/Bicategory/Basic.lean
CategoryTheory.Bicategory.rightUnitor_comp_inv
[ { "state_after": "no goals", "state_before": "B : Type u\ninst✝ : Bicategory B\na b c d e : B\nf : a ⟶ b\ng : b ⟶ c\n⊢ (ρ_ (f ≫ g)).inv = f ◁ (ρ_ g).inv ≫ (α_ f g (𝟙 c)).inv", "tactic": "simp" } ]
[ 480, 70 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 479, 1 ]
Std/Data/Int/Lemmas.lean
Int.neg_mul_eq_neg_mul
[ { "state_after": "no goals", "state_before": "a b : Int\n⊢ a * b + -a * b = 0", "tactic": "rw [← Int.add_mul, Int.add_right_neg, Int.zero_mul]" } ]
[ 462, 86 ]
e68aa8f5fe47aad78987df45f99094afbcb5e936
https://github.com/leanprover/std4
[ 461, 11 ]
Mathlib/GroupTheory/Perm/Cycle/Type.lean
Equiv.Perm.parts_partition
[]
[ 532, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 530, 1 ]
Mathlib/LinearAlgebra/Matrix/SesquilinearForm.lean
isAdjointPair_toLinearMap₂'
[ { "state_after": "R : Type u_1\nR₁ : Type ?u.2034253\nR₂ : Type ?u.2034256\nM : Type ?u.2034259\nM₁ : Type ?u.2034262\nM₂ : Type ?u.2034265\nM₁' : Type ?u.2034268\nM₂' : Type ?u.2034271\nn : Type u_2\nm : Type ?u.2034277\nn' : Type u_3\nm' : Type ?u.2034283\nι : Type ?u.2034286\ninst✝⁸ : CommRing R\ninst✝⁷ : Ad...
[ 573, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 559, 1 ]
Mathlib/Topology/Algebra/Order/LeftRightLim.lean
leftLim_eq_of_tendsto
[ { "state_after": "α : Type u_1\nβ : Type u_2\ninst✝² : LinearOrder α\ninst✝¹ : TopologicalSpace β\nhα : TopologicalSpace α\nh'α : OrderTopology α\ninst✝ : T2Space β\nf : α → β\na : α\ny : β\nh : 𝓝[Iio a] a ≠ ⊥\nh' : Tendsto f (𝓝[Iio a] a) (𝓝 y)\nh'' : ∃ y, Tendsto f (𝓝[Iio a] a) (𝓝 y)\n⊢ leftLim f a = y", ...
[ 75, 18 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 68, 1 ]
Mathlib/Algebra/Category/ModuleCat/Basic.lean
ModuleCat.forget₂_obj_moduleCat_of
[]
[ 164, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 162, 1 ]
Mathlib/RingTheory/Ideal/Basic.lean
Ideal.span_pair_comm
[ { "state_after": "no goals", "state_before": "α : Type u\nβ : Type v\ninst✝ : Semiring α\nI : Ideal α\na b x y : α\n⊢ span {x, y} = span {y, x}", "tactic": "simp only [span_insert, sup_comm]" } ]
[ 362, 36 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 361, 1 ]
Mathlib/Algebra/Lie/NonUnitalNonAssocAlgebra.lean
LieHom.toNonUnitalAlgHom_injective
[]
[ 103, 50 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 101, 1 ]
Mathlib/Order/Hom/Lattice.lean
LatticeHom.cancel_right
[]
[ 1156, 95 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1154, 1 ]
Mathlib/Algebra/BigOperators/Associated.lean
Associates.rel_associated_iff_map_eq_map
[ { "state_after": "α : Type u_1\nβ : Type ?u.35843\nγ : Type ?u.35846\nδ : Type ?u.35849\ninst✝ : CommMonoid α\np q : Multiset α\n⊢ Multiset.Rel Associated p q ↔ Multiset.Rel (fun a b => Associates.mk a = Associates.mk b) p q", "state_before": "α : Type u_1\nβ : Type ?u.35843\nγ : Type ?u.35846\nδ : Type ?u....
[ 127, 38 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 124, 1 ]
Mathlib/LinearAlgebra/Quotient.lean
Submodule.quotientRel_r_def
[ { "state_after": "R : Type u_2\nM : Type u_1\nr : R\nx✝ y✝ : M\ninst✝² : Ring R\ninst✝¹ : AddCommGroup M\ninst✝ : Module R M\np p' : Submodule R M\nx y : M\n⊢ -x + y ∈ toAddSubgroup p ↔ -x + y ∈ p", "state_before": "R : Type u_2\nM : Type u_1\nr : R\nx✝ y✝ : M\ninst✝² : Ring R\ninst✝¹ : AddCommGroup M\ninst...
[ 46, 16 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 41, 1 ]
Mathlib/Order/ConditionallyCompleteLattice/Basic.lean
WithTop.sSup_eq
[]
[ 66, 33 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 64, 1 ]
Mathlib/Data/Finset/Prod.lean
Finset.mem_offDiag
[ { "state_after": "no goals", "state_before": "α : Type u_1\nβ : Type ?u.101302\nγ : Type ?u.101305\ninst✝ : DecidableEq α\ns t : Finset α\nx : α × α\n⊢ x ∈ offDiag s ↔ x.fst ∈ s ∧ x.snd ∈ s ∧ x.fst ≠ x.snd", "tactic": "simp [offDiag, and_assoc]" } ]
[ 305, 28 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 304, 1 ]
Mathlib/SetTheory/Ordinal/Basic.lean
Ordinal.pos_iff_ne_zero
[]
[ 405, 20 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 404, 11 ]
Mathlib/SetTheory/Game/PGame.lean
PGame.Relabelling.mk'_leftMovesEquiv
[]
[ 1049, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1047, 1 ]
Mathlib/GroupTheory/GroupAction/Pi.lean
Pi.smul_apply'
[]
[ 49, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 47, 1 ]
Mathlib/CategoryTheory/Generator.lean
CategoryTheory.isCodetector_iff_reflectsIsomorphisms_yoneda_obj
[ { "state_after": "case refine'_1\nC : Type u₁\ninst✝¹ : Category C\nD : Type u₂\ninst✝ : Category D\nG : C\nhG : IsCodetector G\nA✝ B✝ : Cᵒᵖ\nf : A✝ ⟶ B✝\nhf : IsIso ((yoneda.obj G).map f)\n⊢ IsIso f\n\ncase refine'_2\nC : Type u₁\ninst✝¹ : Category C\nD : Type u₂\ninst✝ : Category D\nG : C\nh : ReflectsIsomorp...
[ 650, 67 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 642, 1 ]
src/lean/Init/Data/List/Basic.lean
List.map_eq_mapTR
[ { "state_after": "no goals", "state_before": "α✝ : Type u\nβ✝ : Type v\nγ : Type w\nα : Type u_2\nβ : Type u_1\nf : α → β\nas : List α\n⊢ map f as = mapTR f as", "tactic": "simp [mapTR, mapTR_loop_eq]" } ]
[ 194, 32 ]
d5348dfac847a56a4595fb6230fd0708dcb4e7e9
https://github.com/leanprover/lean4
[ 192, 10 ]
Mathlib/Algebra/Order/Sub/Canonical.lean
add_le_of_le_tsub_left_of_le
[]
[ 43, 61 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 42, 1 ]
Mathlib/LinearAlgebra/AffineSpace/Slope.lean
sub_div_sub_smul_slope_add_sub_div_sub_smul_slope
[ { "state_after": "case pos\nk : Type u_2\nE : Type u_1\nPE : Type u_3\ninst✝³ : Field k\ninst✝² : AddCommGroup E\ninst✝¹ : Module k E\ninst✝ : AddTorsor E PE\nf : k → PE\na b c : k\nhab : a = b\n⊢ ((b - a) / (c - a)) • slope f a b + ((c - b) / (c - a)) • slope f b c = slope f a c\n\ncase neg\nk : Type u_2\nE : ...
[ 116, 26 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 102, 1 ]
Mathlib/Analysis/NormedSpace/OperatorNorm.lean
ContinuousLinearMap.op_norm_comp_le'
[]
[ 459, 22 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 458, 1 ]
Mathlib/Data/Finset/Lattice.lean
Finset.sup'_mul_le_mul_sup'_of_nonneg
[]
[ 1906, 89 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1902, 1 ]
Mathlib/Topology/Sheaves/Presheaf.lean
TopCat.Presheaf.Pushforward.id_eq
[ { "state_after": "C : Type u\ninst✝ : Category C\nX : TopCat\nℱ : Presheaf C X\n⊢ Functor.op (Opens.map (𝟙 X)) ⋙ ℱ = ℱ", "state_before": "C : Type u\ninst✝ : Category C\nX : TopCat\nℱ : Presheaf C X\n⊢ 𝟙 X _* ℱ = ℱ", "tactic": "unfold pushforwardObj" }, { "state_after": "C : Type u\ninst✝ : Ca...
[ 214, 24 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 211, 1 ]
Mathlib/MeasureTheory/Function/L1Space.lean
MeasureTheory.Integrable.right_of_add_measure
[ { "state_after": "α : Type u_2\nβ : Type u_1\nγ : Type ?u.840553\nδ : Type ?u.840556\nm : MeasurableSpace α\nμ ν : Measure α\ninst✝² : MeasurableSpace δ\ninst✝¹ : NormedAddCommGroup β\ninst✝ : NormedAddCommGroup γ\nf : α → β\nh : Memℒp f 1\n⊢ Memℒp f 1", "state_before": "α : Type u_2\nβ : Type u_1\nγ : Type...
[ 543, 31 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 540, 1 ]
Mathlib/Analysis/NormedSpace/Star/Mul.lean
op_nnnorm_mul_flip
[ { "state_after": "𝕜 : Type u_2\nE : Type u_1\ninst✝⁶ : DenselyNormedField 𝕜\ninst✝⁵ : NonUnitalNormedRing E\ninst✝⁴ : StarRing E\ninst✝³ : CstarRing E\ninst✝² : NormedSpace 𝕜 E\ninst✝¹ : IsScalarTower 𝕜 E E\ninst✝ : SMulCommClass 𝕜 E E\na : E\n⊢ sSup ((fun x => ‖↑(↑(ContinuousLinearMap.flip (mul 𝕜 E)) a) ...
[ 59, 48 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 52, 1 ]
Mathlib/Topology/MetricSpace/PiNat.lean
PiNat.cylinder_eq_res
[ { "state_after": "case h\nE : ℕ → Type ?u.22143\nα : Type u_1\nx : ℕ → α\nn : ℕ\ny : ℕ → α\n⊢ y ∈ cylinder x n ↔ y ∈ {y | res y n = res x n}", "state_before": "E : ℕ → Type ?u.22143\nα : Type u_1\nx : ℕ → α\nn : ℕ\n⊢ cylinder x n = {y | res y n = res x n}", "tactic": "ext y" }, { "state_after": ...
[ 253, 18 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 249, 1 ]
Mathlib/Order/Filter/Basic.lean
Filter.tendsto_bot
[ { "state_after": "no goals", "state_before": "α : Type u\nβ : Type v\nγ : Type w\nδ : Type ?u.307631\nι : Sort x\nf : α → β\nl : Filter β\n⊢ Tendsto f ⊥ l", "tactic": "simp [Tendsto]" } ]
[ 2854, 84 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 2854, 1 ]
Mathlib/Data/Multiset/Lattice.lean
Multiset.inf_mono
[]
[ 155, 37 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 154, 1 ]
Mathlib/Data/Bundle.lean
Bundle.coe_snd_map_apply
[]
[ 173, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 171, 1 ]
Mathlib/Algebra/Tropical/Basic.lean
Tropical.trop_smul
[]
[ 455, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 454, 1 ]
Mathlib/Algebra/Order/Floor.lean
round_le
[ { "state_after": "F : Type ?u.264762\nα : Type u_1\nβ : Type ?u.264768\ninst✝¹ : LinearOrderedRing α\ninst✝ : FloorRing α\nx : α\nz : ℤ\n⊢ fract x ≤ abs (x - ↑z) ∨ 1 - fract x ≤ abs (x - ↑z)", "state_before": "F : Type ?u.264762\nα : Type u_1\nβ : Type ?u.264768\ninst✝¹ : LinearOrderedRing α\ninst✝ : FloorR...
[ 1421, 38 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1411, 1 ]
Mathlib/Order/Filter/Basic.lean
Pairwise.exists_mem_filter_of_disjoint
[ { "state_after": "case this\nα : Type u\nβ : Type v\nγ : Type w\nδ : Type ?u.87127\nι✝ : Sort x\nf g : Filter α\ns t : Set α\nι : Type u_1\ninst✝ : Finite ι\nl : ι → Filter α\nhd : Pairwise (Disjoint on l)\n⊢ ∀ (i j : ι), i ≠ j → ∃ s t, Disjoint ↑s ↑t\n\nα : Type u\nβ : Type v\nγ : Type w\nδ : Type ?u.87127\nι✝...
[ 738, 60 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 729, 1 ]
Mathlib/LinearAlgebra/Prod.lean
LinearMap.snd_eq_coprod
[ { "state_after": "case h\nR : 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\nM₅ : Type ?u.85660\nM₆ : Type ?u.85663\nS : Type ?u.85666\ninst✝¹³ : Semiring R\ninst✝¹² : Semiring S\ninst✝¹¹ : AddCommMonoid M\ninst✝¹⁰ : AddCommMonoid M₂\...
[ 253, 75 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 253, 1 ]
Mathlib/Order/Closure.lean
LowerAdjoint.closed_eq_range_close
[]
[ 413, 42 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 412, 1 ]
Mathlib/Algebra/BigOperators/Basic.lean
Finset.prod_ne_zero_iff
[ { "state_after": "ι : Type ?u.875346\nβ : Type u\nα : Type v\nγ : Type w\ns s₁ s₂ : Finset α\na : α\nf g : α → β\ninst✝² : CommMonoidWithZero β\ninst✝¹ : Nontrivial β\ninst✝ : NoZeroDivisors β\n⊢ (¬∃ a, a ∈ s ∧ f a = 0) ↔ ∀ (a : α), a ∈ s → f a ≠ 0", "state_before": "ι : Type ?u.875346\nβ : Type u\nα : Type...
[ 1933, 16 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1931, 1 ]
Mathlib/NumberTheory/Padics/RingHoms.lean
PadicInt.dvd_appr_sub_appr
[ { "state_after": "case intro\np : ℕ\nhp_prime : Fact (Nat.Prime p)\nr : ℚ\nx✝ x : ℤ_[p]\nm k : ℕ\nh : m ≤ m + k\n⊢ p ^ m ∣ appr x (m + k) - appr x m", "state_before": "p : ℕ\nhp_prime : Fact (Nat.Prime p)\nr : ℚ\nx✝ x : ℤ_[p]\nm n : ℕ\nh : m ≤ n\n⊢ p ^ m ∣ appr x n - appr x m", "tactic": "obtain ⟨k, rfl...
[ 351, 45 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 339, 1 ]
Mathlib/MeasureTheory/Function/LpSpace.lean
MeasureTheory.Lp.coeFn_posPart
[]
[ 1119, 26 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1118, 1 ]
Mathlib/Order/Filter/ENNReal.lean
ENNReal.limsup_const_mul_of_ne_top
[ { "state_after": "case pos\nα : Type u_1\nf : Filter α\nu : α → ℝ≥0∞\na : ℝ≥0∞\nha_top : a ≠ ⊤\nha_zero : a = 0\n⊢ limsup (fun x => a * u x) f = a * limsup u f\n\ncase neg\nα : Type u_1\nf : Filter α\nu : α → ℝ≥0∞\na : ℝ≥0∞\nha_top : a ≠ ⊤\nha_zero : ¬a = 0\n⊢ limsup (fun x => a * u x) f = a * limsup u f", ...
[ 51, 29 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 36, 1 ]
Mathlib/Analysis/Calculus/Deriv/Mul.lean
HasStrictDerivAt.clm_apply
[ { "state_after": "𝕜 : Type u\ninst✝⁶ : NontriviallyNormedField 𝕜\nF : Type v\ninst✝⁵ : NormedAddCommGroup F\ninst✝⁴ : NormedSpace 𝕜 F\nE : Type w\ninst✝³ : NormedAddCommGroup E\ninst✝² : NormedSpace 𝕜 E\nf f₀ f₁ g : 𝕜 → F\nf' f₀' f₁' g' : F\nx : 𝕜\ns t : Set 𝕜\nL L₁ L₂ : Filter 𝕜\nG : Type u_1\ninst✝¹ :...
[ 387, 32 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 383, 1 ]
Mathlib/MeasureTheory/Function/StronglyMeasurable/Inner.lean
MeasureTheory.AEStronglyMeasurable.inner
[]
[ 57, 61 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 54, 11 ]
Mathlib/LinearAlgebra/Ray.lean
SameRay.exists_pos_right
[]
[ 662, 68 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 660, 1 ]
Mathlib/Topology/Algebra/Module/Multilinear.lean
ContinuousMultilinearMap.ext
[]
[ 113, 20 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 112, 1 ]
Mathlib/Analysis/NormedSpace/AffineIsometry.lean
AffineIsometryEquiv.ext
[]
[ 363, 47 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 362, 1 ]
Mathlib/MeasureTheory/Function/StronglyMeasurable/Basic.lean
MeasureTheory.AEStronglyMeasurable.const_smul
[]
[ 1333, 81 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1331, 11 ]
Mathlib/Order/Monotone/Basic.lean
StrictMono.isMax_of_apply
[]
[ 573, 25 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 570, 1 ]
Mathlib/Topology/Homotopy/Basic.lean
ContinuousMap.HomotopyRel.symm_trans
[]
[ 655, 68 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 653, 1 ]
Mathlib/Analysis/Calculus/ContDiff.lean
ContDiff.contDiff_fderiv_apply
[ { "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...
[ 1104, 63 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1100, 1 ]
Mathlib/MeasureTheory/Function/Egorov.lean
MeasureTheory.tendstoUniformlyOn_of_ae_tendsto'
[ { "state_after": "α : Type u_1\nβ : Type u_2\nι : Type u_3\nm : MeasurableSpace α\ninst✝⁵ : MetricSpace β\nμ : Measure α\ninst✝⁴ : SemilatticeSup ι\ninst✝³ : Nonempty ι\ninst✝² : Countable ι\nγ : Type ?u.46709\ninst✝¹ : TopologicalSpace γ\nf : ι → α → β\ng : α → β\ns : Set α\ninst✝ : IsFiniteMeasure μ\nhf : ∀ (...
[ 223, 31 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 216, 1 ]
Mathlib/RingTheory/Polynomial/Vieta.lean
Multiset.esymm_neg
[ { "state_after": "R : Type u_1\ninst✝ : CommRing R\ns : Multiset R\nk : ℕ\n⊢ ∀ (x : Multiset R), x ∈ powersetLen k s → (prod ∘ map Neg.neg) x = (-1) ^ k * prod x", "state_before": "R : Type u_1\ninst✝ : CommRing R\ns : Multiset R\nk : ℕ\n⊢ esymm (map Neg.neg s) k = (-1) ^ k * esymm s k", "tactic": "rw [...
[ 104, 33 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 97, 1 ]
Mathlib/Topology/Algebra/InfiniteSum/Basic.lean
rel_iSup_sum
[ { "state_after": "α : Type u_2\nβ : Type u_1\nγ : Type ?u.376229\nδ : Type u_3\ninst✝⁴ : AddCommMonoid α\ninst✝³ : TopologicalSpace α\ninst✝² : T2Space α\nf g : β → α\na a₁ a₂ : α\ninst✝¹ : Countable γ\ninst✝ : CompleteLattice β\nm : β → α\nm0 : m ⊥ = 0\nR : α → α → Prop\nm_iSup : ∀ (s : ℕ → β), R (m (⨆ (i : ℕ)...
[ 756, 38 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 752, 1 ]
Mathlib/Analysis/InnerProductSpace/Basic.lean
norm_add_sq_real
[ { "state_after": "𝕜 : Type ?u.2366731\nE : Type ?u.2366734\nF : Type u_1\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 y : F\nh : ‖x + y‖ ^ 2 = ‖x‖ ^ 2 + 2 * ↑re (inner x y) + ‖y‖ ^ 2\n...
[ 1043, 16 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1041, 1 ]
Mathlib/MeasureTheory/Function/LpSeminorm.lean
MeasureTheory.snorm'_lt_top_of_snorm'_lt_top_of_exponent_le
[ { "state_after": "case inl\nα : Type u_1\nE : Type u_2\nF : Type ?u.4187857\nG : Type ?u.4187860\nm m0 : MeasurableSpace α\np✝ : ℝ≥0∞\nq✝ : ℝ\nμ ν : Measure α\ninst✝³ : NormedAddCommGroup E\ninst✝² : NormedAddCommGroup F\ninst✝¹ : NormedAddCommGroup G\np q : ℝ\ninst✝ : IsFiniteMeasure μ\nf : α → E\nhf : AEStron...
[ 1126, 78 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1113, 1 ]
Mathlib/Order/GaloisConnection.lean
GaloisConnection.l_comm_of_u_comm
[]
[ 353, 49 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 347, 1 ]
Mathlib/Algebra/Algebra/Subalgebra/Basic.lean
Subalgebra.map_injective
[]
[ 476, 87 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 474, 1 ]
Mathlib/Topology/MetricSpace/Basic.lean
tendsto_iff_dist_tendsto_zero
[ { "state_after": "α : Type u\nβ : Type v\nX : Type ?u.289039\nι : Type ?u.289042\ninst✝ : PseudoMetricSpace α\nf : β → α\nx : Filter β\na : α\n⊢ Tendsto ((fun x => dist x a) ∘ f) x (𝓝 0) ↔ Tendsto (fun b => dist (f b) a) x (𝓝 0)", "state_before": "α : Type u\nβ : Type v\nX : Type ?u.289039\nι : Type ?u.28...
[ 1825, 51 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1823, 1 ]
Mathlib/Topology/Instances/ENNReal.lean
ENNReal.biSup_add'
[ { "state_after": "α : Type ?u.130531\nβ : Type ?u.130534\nγ : Type ?u.130537\na b c d : ℝ≥0∞\nr p✝ q : ℝ≥0\nx y z ε ε₁ ε₂ : ℝ≥0∞\ns : Set ℝ≥0∞\nι : Sort u_1\np : ι → Prop\nh : ∃ i, p i\nf : ι → ℝ≥0∞\nthis : Nonempty { i // p i }\n⊢ (⨆ (i : ι) (_ : p i), f i) + a = ⨆ (i : ι) (_ : p i), f i + a", "state_befor...
[ 571, 38 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 568, 1 ]
Mathlib/Data/Complex/Basic.lean
Complex.ofReal_eq_zero
[]
[ 156, 13 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 155, 1 ]
Mathlib/Topology/ContinuousOn.lean
ContinuousOn.restrict_mapsTo
[]
[ 615, 28 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 613, 1 ]
Mathlib/FieldTheory/Subfield.lean
Subfield.mem_carrier
[]
[ 182, 10 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 181, 1 ]
Mathlib/CategoryTheory/Whiskering.lean
CategoryTheory.isoWhiskerRight_hom
[]
[ 183, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 181, 1 ]
Mathlib/Algebra/Order/ToIntervalMod.lean
toIocDiv_neg'
[ { "state_after": "no goals", "state_before": "α : Type u_1\ninst✝ : LinearOrderedAddCommGroup α\nhα : Archimedean α\np : α\nhp : 0 < p\na✝ b✝ c : α\nn : ℤ\na b : α\n⊢ toIocDiv hp (-a) b = -(toIcoDiv hp a (-b) + 1)", "tactic": "simpa only [neg_neg] using toIocDiv_neg hp (-a) (-b)" } ]
[ 401, 55 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 400, 1 ]
Mathlib/Geometry/Euclidean/Angle/Unoriented/Affine.lean
EuclideanGeometry.angle_eq_pi_iff_sbtw
[ { "state_after": "V : Type u_1\nP : Type u_2\ninst✝³ : NormedAddCommGroup V\ninst✝² : InnerProductSpace ℝ V\ninst✝¹ : MetricSpace P\ninst✝ : NormedAddTorsor V P\np₁ p₂ p₃ : P\n⊢ ∠ p₁ p₂ p₃ = π → Sbtw ℝ p₁ p₂ p₃", "state_before": "V : Type u_1\nP : Type u_2\ninst✝³ : NormedAddCommGroup V\ninst✝² : InnerProdu...
[ 323, 25 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 309, 1 ]
Mathlib/GroupTheory/Subgroup/Basic.lean
Subgroup.comap_iInf
[]
[ 1544, 26 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1542, 1 ]
Mathlib/LinearAlgebra/Basic.lean
LinearMap.mem_range
[]
[ 1212, 10 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1211, 1 ]
Mathlib/Algebra/GCDMonoid/Div.lean
Finset.Int.gcd_div_id_eq_one
[]
[ 69, 26 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 67, 1 ]
Mathlib/LinearAlgebra/Orientation.lean
Basis.orientation_ne_iff_eq_neg
[]
[ 244, 58 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 241, 1 ]
Mathlib/RingTheory/NonUnitalSubsemiring/Basic.lean
NonUnitalSubsemiring.subset_closure
[]
[ 569, 98 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 569, 1 ]
Mathlib/Algebra/Polynomial/BigOperators.lean
Polynomial.coeff_multiset_prod_of_natDegree_le
[ { "state_after": "case h\nR : Type u\nι : Type w\ns : Finset ι\ninst✝ : CommSemiring R\nf : ι → R[X]\nt : Multiset R[X]\nn : ℕ\na✝ : List R[X]\nhl : ∀ (p : R[X]), p ∈ Quotient.mk (List.isSetoid R[X]) a✝ → natDegree p ≤ n\n⊢ coeff (prod (Quotient.mk (List.isSetoid R[X]) a✝)) (↑Multiset.card (Quotient.mk (List.is...
[ 217, 53 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 214, 1 ]
Mathlib/MeasureTheory/Function/StronglyMeasurable/Basic.lean
MeasureTheory.finStronglyMeasurable_iff_stronglyMeasurable_and_exists_set_sigmaFinite
[]
[ 1139, 28 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1132, 1 ]
Mathlib/Algebra/Homology/Exact.lean
CategoryTheory.exact_epi_comp
[ { "state_after": "V : Type u\ninst✝⁴ : Category V\ninst✝³ : HasImages V\nA B C D : V\nf : A ⟶ B\ng : B ⟶ C\nh : C ⟶ D\ninst✝² : HasZeroMorphisms V\ninst✝¹ : HasEqualizers V\nhgh : Exact g h\ninst✝ : Epi f\n⊢ Epi (imageToKernel (f ≫ g) h (_ : (f ≫ g) ≫ h = 0))", "state_before": "V : Type u\ninst✝⁴ : Category...
[ 194, 17 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 190, 1 ]
Mathlib/CategoryTheory/Functor/Flat.lean
CategoryTheory.PreservesFiniteLimitsOfFlat.uniq
[ { "state_after": "C : Type u₁\ninst✝⁴ : Category C\nD : Type u₂\ninst✝³ : Category D\nJ : Type v₁\ninst✝² : SmallCategory J\ninst✝¹ : FinCategory J\nK✝ : J ⥤ C\nF : C ⥤ D\ninst✝ : RepresentablyFlat F\nc✝ : Cone K✝\nhc✝ : IsLimit c✝\ns✝ : Cone (K✝ ⋙ F)\nK : J ⥤ C\nc : Cone K\nhc : IsLimit c\ns : Cone (K ⋙ F)\nf₁...
[ 309, 22 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 231, 1 ]
Mathlib/Data/List/Basic.lean
List.takeI_left'
[ { "state_after": "ι : Type ?u.226663\nα : Type u\nβ : Type v\nγ : Type w\nδ : Type x\nl₁✝ l₂✝ : List α\ninst✝ : Inhabited α\nl₁ l₂ : List α\nn : ℕ\nh : length l₁ = n\n⊢ takeI (length l₁) (l₁ ++ l₂) = l₁", "state_before": "ι : Type ?u.226663\nα : Type u\nβ : Type v\nγ : Type w\nδ : Type x\nl₁✝ l₂✝ : List α\n...
[ 2346, 29 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 2345, 1 ]
Mathlib/Analysis/NormedSpace/lpSpace.lean
lp.single_apply
[]
[ 1003, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1001, 11 ]
Mathlib/Topology/MetricSpace/Basic.lean
Metric.emetric_ball
[ { "state_after": "case h\nα : Type u\nβ : Type v\nX : Type ?u.164248\nι : Type ?u.164251\ninst✝ : PseudoMetricSpace α\nx : α\nε : ℝ\ny : α\n⊢ y ∈ EMetric.ball x (ENNReal.ofReal ε) ↔ y ∈ ball x ε", "state_before": "α : Type u\nβ : Type v\nX : Type ?u.164248\nι : Type ?u.164251\ninst✝ : PseudoMetricSpace α\nx...
[ 1200, 59 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1197, 1 ]
Mathlib/Topology/MetricSpace/EMetricSpace.lean
edist_toDual
[]
[ 1234, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1233, 1 ]
Mathlib/Algebra/Algebra/Spectrum.lean
spectrum.add_mem_add_iff
[ { "state_after": "no goals", "state_before": "R : Type u\nA : Type v\ninst✝² : CommSemiring R\ninst✝¹ : Ring A\ninst✝ : Algebra R A\na : A\nr s : R\n⊢ r + s ∈ σ (↑↑ₐ s + a) ↔ r ∈ σ a", "tactic": "rw [add_mem_iff, neg_add_cancel_left]" } ]
[ 209, 40 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 208, 1 ]
Mathlib/Analysis/Normed/Group/Basic.lean
tendsto_one_iff_norm_tendsto_one
[ { "state_after": "𝓕 : Type ?u.450626\n𝕜 : Type ?u.450629\nα : Type u_1\nι : Type ?u.450635\nκ : Type ?u.450638\nE : Type u_2\nF : Type ?u.450644\nG : Type ?u.450647\ninst✝² : SeminormedGroup E\ninst✝¹ : SeminormedGroup F\ninst✝ : SeminormedGroup G\ns : Set E\na✝ a₁ a₂ b b₁ b₂ : E\nr r₁ r₂ : ℝ\nf : α → E\na : ...
[ 1035, 22 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 1032, 1 ]
Mathlib/Analysis/NormedSpace/MazurUlam.lean
IsometryEquiv.coe_to_real_linear_equiv_of_map_zero
[]
[ 120, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 118, 1 ]
Mathlib/Algebra/Order/Monoid/Canonical/Defs.lean
one_le
[]
[ 220, 46 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 219, 1 ]
Mathlib/AlgebraicTopology/MooreComplex.lean
AlgebraicTopology.normalizedMooreComplex_objD
[]
[ 167, 40 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 164, 1 ]
Mathlib/LinearAlgebra/Pi.lean
LinearEquiv.piCongrRight_refl
[]
[ 363, 6 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 362, 1 ]
Mathlib/Analysis/Convex/Basic.lean
Convex.smul
[]
[ 425, 42 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 424, 1 ]
Mathlib/Data/Matrix/Basic.lean
Matrix.add_apply
[]
[ 303, 41 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 302, 1 ]
Mathlib/Data/Sigma/Interval.lean
Sigma.Icc_mk_mk
[]
[ 85, 14 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 84, 1 ]
Mathlib/Algebra/Order/Interval.lean
NonemptyInterval.length_neg
[]
[ 657, 18 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 656, 1 ]
Std/Data/String/Lemmas.lean
String.foldr_eq
[ { "state_after": "no goals", "state_before": "α : Type u_1\nf : Char → α → α\ns : String\na : α\n⊢ foldr f a s = List.foldr f a s.data", "tactic": "simpa using foldrAux_of_valid f [] s.1 [] a" } ]
[ 704, 46 ]
e68aa8f5fe47aad78987df45f99094afbcb5e936
https://github.com/leanprover/std4
[ 703, 1 ]
Mathlib/Analysis/InnerProductSpace/Basic.lean
InnerProductSpace.Core.inner_neg_right
[ { "state_after": "𝕜 : Type u_1\nE : Type ?u.598333\nF : Type u_2\ninst✝² : IsROrC 𝕜\ninst✝¹ : AddCommGroup F\ninst✝ : Module 𝕜 F\nc : Core 𝕜 F\nx y : F\n⊢ ↑(starRingEnd 𝕜) (-inner y x) = -inner x y", "state_before": "𝕜 : Type u_1\nE : Type ?u.598333\nF : Type u_2\ninst✝² : IsROrC 𝕜\ninst✝¹ : AddCommG...
[ 289, 87 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 288, 1 ]
Mathlib/Data/Part.lean
Part.mem_bind_iff
[]
[ 499, 39 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
[ 496, 1 ]
Mathlib/RingTheory/PrincipalIdealDomain.lean
Submodule.IsPrincipal.of_comap
[ { "state_after": "no goals", "state_before": "R : Type u\nM : Type v\nS✝ : Type ?u.178108\nN : Type u_1\ninst✝⁵ : Ring R\ninst✝⁴ : AddCommGroup M\ninst✝³ : AddCommGroup N\ninst✝² : Ring S✝\ninst✝¹ : Module R M\ninst✝ : Module R N\nf : M →ₗ[R] N\nhf : Surjective ↑f\nS : Submodule R N\nhI : IsPrincipal (comap...
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5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
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Mathlib/LinearAlgebra/FiniteDimensional.lean
LinearMap.isUnit_iff_ker_eq_bot
[ { "state_after": "case mp\nK : Type u\nV : Type v\ninst✝³ : DivisionRing K\ninst✝² : AddCommGroup V\ninst✝¹ : Module K V\ninst✝ : FiniteDimensional K V\nf : V →ₗ[K] V\n⊢ IsUnit f → ker f = ⊥\n\ncase mpr\nK : Type u\nV : Type v\ninst✝³ : DivisionRing K\ninst✝² : AddCommGroup V\ninst✝¹ : Module K V\ninst✝ : Finit...
[ 1011, 11 ]
5a919533f110b7d76410134a237ee374f24eaaad
https://github.com/leanprover-community/mathlib4
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