awhecmu/canonical-drafter-extract-mathlib huggingface dataset:
-- Lean 4 proof step from Mathlib.MeasureTheory.Covering.Besicovitch (goal)
Goal:
α : Type u_1
inst : MetricSpace α
inst_1 : SecondCountableTopology α
inst_2 : MeasurableSpace α
inst_3 : OpensMeasurableSpace α
inst_4 : HasBesicovitchCovering α
μ : Measure α
inst_5 : IsFiniteMeasure μ
f : α → Set ℝ
s : Set α
hf : ∀ x ∈ s, ∀ δ > 0, (f x ∩ Ioo 0 δ).Nonempty
N : ℕ
τ : ℝ
hτ : 1 < τ
hN : IsEmpty.{u_1 + 1} (SatelliteConfig α N τ)
P : Finset (α × ℝ) → Prop :=
  fun (t : Finset (α × ℝ)) ↦
    ((↑t : Set (α × ℝ)).PairwiseDisjoint (α := Set α) fun (p : α × ℝ) ↦ closedBall p.1 p.2) ∧
      (∀ p ∈ t, p.1 ∈ s) ∧ ∀ p ∈ t, p.2 ∈ f p.1
F : (t : Finset (α × ℝ)) → Finset (α × ℝ)
hF :
  ∀ (t : Finset (α × ℝ)),
    P t →
      t ⊆ F t ∧
        P (F t) ∧
          (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ F t, closedBall p.1 p.2) ≤
            HMul.hMul (β := ℝ≥0∞) ((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1)
              ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ t, closedBall p.1 p.2) : ℝ≥0∞)
u : (n : ℕ) → Finset (α × ℝ) := fun (n : ℕ) ↦ F^[n] ∅
u_succ : ∀ (n : ℕ), u n.succ = F (u n)
Pu : ∀ (n : ℕ), P (u n)
A :
  ∀ (n : ℕ),
    LE.le (α := ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞)
          (s \
            ⋃ (p : α × ℝ),
              ⋃ (_ : Membership.mem (γ := Set (α × ℝ)) (⋃ (n : ℕ), (↑(u n) : Set (α × ℝ))) p), closedBall p.1 p.2) :
        ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) : ℝ≥0∞)
n : ℕ
IH :
  (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) ≤
    HMul.hMul (β := ℝ≥0∞) (((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1) ^ n) ((μ : (a : Set α) → ℝ≥0∞) s : ℝ≥0∞)
_ :
  (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u (n + 1), closedBall p.1 p.2) ≤
    HMul.hMul (β := ℝ≥0∞) ((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1)
      ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) : ℝ≥0∞)
⊢ (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u (n + 1), closedBall p.1 p.2) ≤
    HMul.hMul (β := ℝ≥0∞) (((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1) ^ (n + 1))
      ((μ : (a : Set α) → ℝ≥0∞) s : ℝ≥0∞)
have _₁ : HMul.hMul (β := ℝ≥0∞) ((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1)
    ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) : ℝ≥0∞) ≤
  HMul.hMul (β := ℝ≥0∞) (((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1) ^ (n + 1))
    ((μ : (a : Set α) → ℝ≥0∞) s : ℝ≥0∞)
Tactic: calc
          _ ≤ N / (N + 1) * μ (s \ ⋃ (p : α × ℝ) (_ : p ∈ u n), closedBall p.fst p.snd) := by
            rw [u_succ]; exact (hF (u n) (Pu n)).2.2
          _ ≤ _ := by grw [pow_succ', mul_assoc, IH]
-- Lean 4 proof step from Mathlib.MeasureTheory.Covering.Besicovitch (goal)
Goal:
α : Type u_1
inst : MetricSpace α
inst_1 : SecondCountableTopology α
inst_2 : MeasurableSpace α
inst_3 : OpensMeasurableSpace α
inst_4 : HasBesicovitchCovering α
μ : Measure α
inst_5 : IsFiniteMeasure μ
f : α → Set ℝ
s : Set α
hf : ∀ x ∈ s, ∀ δ > 0, (f x ∩ Ioo 0 δ).Nonempty
N : ℕ
τ : ℝ
hτ : 1 < τ
hN : IsEmpty.{u_1 + 1} (SatelliteConfig α N τ)
P : Finset (α × ℝ) → Prop :=
  fun (t : Finset (α × ℝ)) ↦
    ((↑t : Set (α × ℝ)).PairwiseDisjoint (α := Set α) fun (p : α × ℝ) ↦ closedBall p.1 p.2) ∧
      (∀ p ∈ t, p.1 ∈ s) ∧ ∀ p ∈ t, p.2 ∈ f p.1
F : (t : Finset (α × ℝ)) → Finset (α × ℝ)
hF :
  ∀ (t : Finset (α × ℝ)),
    P t →
      t ⊆ F t ∧
        P (F t) ∧
          (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ F t, closedBall p.1 p.2) ≤
            HMul.hMul (β := ℝ≥0∞) ((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1)
              ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ t, closedBall p.1 p.2) : ℝ≥0∞)
u : (n : ℕ) → Finset (α × ℝ) := fun (n : ℕ) ↦ F^[n] ∅
u_succ : ∀ (n : ℕ), u n.succ = F (u n)
Pu : ∀ (n : ℕ), P (u n)
A :
  ∀ (n : ℕ),
    LE.le (α := ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞)
          (s \
            ⋃ (p : α × ℝ),
              ⋃ (_ : Membership.mem (γ := Set (α × ℝ)) (⋃ (n : ℕ), (↑(u n) : Set (α × ℝ))) p), closedBall p.1 p.2) :
        ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) : ℝ≥0∞)
n : ℕ
⊢ (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) ≤
    HMul.hMul (β := ℝ≥0∞) (((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1) ^ n) ((μ : (a : Set α) → ℝ≥0∞) s : ℝ≥0∞)
have zero : (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u 0, closedBall p.1 p.2) ≤
  HMul.hMul (β := ℝ≥0∞) (HPow.hPow (β := ℕ) ((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1) 0)
    ((μ : (a : Set α) → ℝ≥0∞) s : ℝ≥0∞)
Tactic: induction n with
      | zero =>
        simp only [u, le_refl, diff_empty, one_mul, iUnion_false, iUnion_empty, pow_zero,
          Function.iterate_zero, id, Finset.notMem_empty]
      | succ n IH =>
        calc
          _ ≤ N / (N + 1) * μ (s \ ⋃ (p : α × ℝ) (_ : p ∈ u n), closedBall p.fst p.snd) := by
            rw [u_succ]; exact (hF (u n) (Pu n)).2.2
          _ ≤ _ := by grw [pow_succ', mul_assoc, IH]
Cleared hypotheses: n
-- Lean 4 proof step from Mathlib.MeasureTheory.Covering.Besicovitch (goal)
Goal:
α : Type u_1
inst : MetricSpace α
inst_1 : SecondCountableTopology α
inst_2 : MeasurableSpace α
inst_3 : OpensMeasurableSpace α
inst_4 : HasBesicovitchCovering α
μ : Measure α
inst_5 : IsFiniteMeasure μ
f : α → Set ℝ
s : Set α
hf : ∀ x ∈ s, ∀ δ > 0, (f x ∩ Ioo 0 δ).Nonempty
N : ℕ
τ : ℝ
hτ : 1 < τ
hN : IsEmpty.{u_1 + 1} (SatelliteConfig α N τ)
P : Finset (α × ℝ) → Prop :=
  fun (t : Finset (α × ℝ)) ↦
    ((↑t : Set (α × ℝ)).PairwiseDisjoint (α := Set α) fun (p : α × ℝ) ↦ closedBall p.1 p.2) ∧
      (∀ p ∈ t, p.1 ∈ s) ∧ ∀ p ∈ t, p.2 ∈ f p.1
F : (t : Finset (α × ℝ)) → Finset (α × ℝ)
hF :
  ∀ (t : Finset (α × ℝ)),
    P t →
      t ⊆ F t ∧
        P (F t) ∧
          (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ F t, closedBall p.1 p.2) ≤
            HMul.hMul (β := ℝ≥0∞) ((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1)
              ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ t, closedBall p.1 p.2) : ℝ≥0∞)
u : (n : ℕ) → Finset (α × ℝ) := fun (n : ℕ) ↦ F^[n] ∅
u_succ : ∀ (n : ℕ), u n.succ = F (u n)
Pu : ∀ (n : ℕ), P (u n)
A :
  ∀ (n : ℕ),
    LE.le (α := ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞)
          (s \
            ⋃ (p : α × ℝ),
              ⋃ (_ : Membership.mem (γ := Set (α × ℝ)) (⋃ (n : ℕ), (↑(u n) : Set (α × ℝ))) p), closedBall p.1 p.2) :
        ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) : ℝ≥0∞)
n : ℕ
zero :
  (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u 0, closedBall p.1 p.2) ≤
    HMul.hMul (β := ℝ≥0∞) (HPow.hPow (β := ℕ) ((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1) 0)
      ((μ : (a : Set α) → ℝ≥0∞) s : ℝ≥0∞)
⊢ (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) ≤
    HMul.hMul (β := ℝ≥0∞) (((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1) ^ n) ((μ : (a : Set α) → ℝ≥0∞) s : ℝ≥0∞)
have succ : ∀ (n : ℕ)
  (IH :
    (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) ≤
      HMul.hMul (β := ℝ≥0∞) (((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1) ^ n)
        ((μ : (a : Set α) → ℝ≥0∞) s : ℝ≥0∞)),
  (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u (n + 1), closedBall p.1 p.2) ≤
    HMul.hMul (β := ℝ≥0∞) (((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1) ^ (n + 1))
      ((μ : (a : Set α) → ℝ≥0∞) s : ℝ≥0∞)
Tactic: induction n with
      | zero =>
        simp only [u, le_refl, diff_empty, one_mul, iUnion_false, iUnion_empty, pow_zero,
          Function.iterate_zero, id, Finset.notMem_empty]
      | succ n IH =>
        calc
          _ ≤ N / (N + 1) * μ (s \ ⋃ (p : α × ℝ) (_ : p ∈ u n), closedBall p.fst p.snd) := by
            rw [u_succ]; exact (hF (u n) (Pu n)).2.2
          _ ≤ _ := by grw [pow_succ', mul_assoc, IH]
Cleared hypotheses: n
-- Lean 4 proof step from Mathlib.MeasureTheory.Covering.Besicovitch (hypothesis)
Goal:
α : Type u_1
inst : MetricSpace α
inst_1 : SecondCountableTopology α
inst_2 : MeasurableSpace α
inst_3 : OpensMeasurableSpace α
inst_4 : HasBesicovitchCovering α
μ : Measure α
inst_5 : IsFiniteMeasure μ
f : α → Set ℝ
s : Set α
hf : ∀ x ∈ s, ∀ δ > 0, (f x ∩ Ioo 0 δ).Nonempty
N : ℕ
τ : ℝ
hτ : 1 < τ
hN : IsEmpty.{u_1 + 1} (SatelliteConfig α N τ)
P : Finset (α × ℝ) → Prop :=
  fun (t : Finset (α × ℝ)) ↦
    ((↑t : Set (α × ℝ)).PairwiseDisjoint (α := Set α) fun (p : α × ℝ) ↦ closedBall p.1 p.2) ∧
      (∀ p ∈ t, p.1 ∈ s) ∧ ∀ p ∈ t, p.2 ∈ f p.1
F : (t : Finset (α × ℝ)) → Finset (α × ℝ)
hF :
  ∀ (t : Finset (α × ℝ)),
    P t →
      t ⊆ F t ∧
        P (F t) ∧
          (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ F t, closedBall p.1 p.2) ≤
            HMul.hMul (β := ℝ≥0∞) ((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1)
              ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ t, closedBall p.1 p.2) : ℝ≥0∞)
u : (n : ℕ) → Finset (α × ℝ) := fun (n : ℕ) ↦ F^[n] ∅
u_succ : ∀ (n : ℕ), u n.succ = F (u n)
Pu : ∀ (n : ℕ), P (u n)
A :
  ∀ (n : ℕ),
    LE.le (α := ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞)
          (s \
            ⋃ (p : α × ℝ),
              ⋃ (_ : Membership.mem (γ := Set (α × ℝ)) (⋃ (n : ℕ), (↑(u n) : Set (α × ℝ))) p), closedBall p.1 p.2) :
        ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) : ℝ≥0∞)
⊢ Eq (α := ℝ≥0∞)
    ((μ : (a : Set α) → ℝ≥0∞)
        (s \
          ⋃ (p : α × ℝ),
            ⋃ (_ : Membership.mem (γ := Set (α × ℝ)) (⋃ (n : ℕ), (↑(u n) : Set (α × ℝ))) p), closedBall p.1 p.2) :
      ℝ≥0∞)
    (0 : ℝ≥0∞)
have B : ∀ (n : ℕ),
  (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) ≤
    HMul.hMul (β := ℝ≥0∞) (((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1) ^ n) ((μ : (a : Set α) → ℝ≥0∞) s : ℝ≥0∞)
Tactic: have B :
        ∀ n, μ (s \ ⋃ (p : α × ℝ) (_ : p ∈ u n), closedBall p.fst p.snd) ≤
          (N / (N + 1) : ℝ≥0∞) ^ n * μ s := fun n ↦ by
      induction n with
      | zero =>
        simp only [u, le_refl, diff_empty, one_mul, iUnion_false, iUnion_empty, pow_zero,
          Function.iterate_zero, id, Finset.notMem_empty]
      | succ n IH =>
        calc
          _ ≤ N / (N + 1) * μ (s \ ⋃ (p : α × ℝ) (_ : p ∈ u n), closedBall p.fst p.snd) := by
            rw [u_succ]; exact (hF (u n) (Pu n)).2.2
          _ ≤ _ := by grw [pow_succ', mul_assoc, IH]
-- Lean 4 proof step from Mathlib.MeasureTheory.Covering.Besicovitch (goal)
Goal:
α : Type u_1
inst : MetricSpace α
inst_1 : SecondCountableTopology α
inst_2 : MeasurableSpace α
inst_3 : OpensMeasurableSpace α
inst_4 : HasBesicovitchCovering α
μ : Measure α
inst_5 : IsFiniteMeasure μ
f : α → Set ℝ
s : Set α
hf : ∀ x ∈ s, ∀ δ > 0, (f x ∩ Ioo 0 δ).Nonempty
N : ℕ
τ : ℝ
hτ : 1 < τ
hN : IsEmpty.{u_1 + 1} (SatelliteConfig α N τ)
P : Finset (α × ℝ) → Prop :=
  fun (t : Finset (α × ℝ)) ↦
    ((↑t : Set (α × ℝ)).PairwiseDisjoint (α := Set α) fun (p : α × ℝ) ↦ closedBall p.1 p.2) ∧
      (∀ p ∈ t, p.1 ∈ s) ∧ ∀ p ∈ t, p.2 ∈ f p.1
F : (t : Finset (α × ℝ)) → Finset (α × ℝ)
hF :
  ∀ (t : Finset (α × ℝ)),
    P t →
      t ⊆ F t ∧
        P (F t) ∧
          (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ F t, closedBall p.1 p.2) ≤
            HMul.hMul (β := ℝ≥0∞) ((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1)
              ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ t, closedBall p.1 p.2) : ℝ≥0∞)
u : (n : ℕ) → Finset (α × ℝ) := fun (n : ℕ) ↦ F^[n] ∅
u_succ : ∀ (n : ℕ), u n.succ = F (u n)
Pu : ∀ (n : ℕ), P (u n)
A :
  ∀ (n : ℕ),
    LE.le (α := ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞)
          (s \
            ⋃ (p : α × ℝ),
              ⋃ (_ : Membership.mem (γ := Set (α × ℝ)) (⋃ (n : ℕ), (↑(u n) : Set (α × ℝ))) p), closedBall p.1 p.2) :
        ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) : ℝ≥0∞)
B :
  ∀ (n : ℕ),
    (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) ≤
      HMul.hMul (β := ℝ≥0∞) (((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1) ^ n)
        ((μ : (a : Set α) → ℝ≥0∞) s : ℝ≥0∞)
⊢ Tendsto
    (fun (n : ℕ) ↦
      HMul.hMul (β := ℝ≥0∞) (((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1) ^ n)
        ((μ : (a : Set α) → ℝ≥0∞) s : ℝ≥0∞))
    atTop (𝓝 (HMul.hMul (α := ℝ≥0∞) (β := ℝ≥0∞) (0 : ℝ≥0∞) ((μ : (a : Set α) → ℝ≥0∞) s : ℝ≥0∞)))
have apply : Tendsto (α := ℕ) (HPow.hPow ((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1)) atTop (𝓝 0)
Tactic: apply ENNReal.Tendsto.mul_const _ (Or.inr (measure_lt_top μ s).ne)
-- Lean 4 proof step from Mathlib.MeasureTheory.Covering.Besicovitch (goal)
Goal:
α : Type u_1
inst : MetricSpace α
inst_1 : SecondCountableTopology α
inst_2 : MeasurableSpace α
inst_3 : OpensMeasurableSpace α
inst_4 : HasBesicovitchCovering α
μ : Measure α
inst_5 : IsFiniteMeasure μ
f : α → Set ℝ
s : Set α
hf : ∀ x ∈ s, ∀ δ > 0, (f x ∩ Ioo 0 δ).Nonempty
N : ℕ
τ : ℝ
hτ : 1 < τ
hN : IsEmpty.{u_1 + 1} (SatelliteConfig α N τ)
P : Finset (α × ℝ) → Prop :=
  fun (t : Finset (α × ℝ)) ↦
    ((↑t : Set (α × ℝ)).PairwiseDisjoint (α := Set α) fun (p : α × ℝ) ↦ closedBall p.1 p.2) ∧
      (∀ p ∈ t, p.1 ∈ s) ∧ ∀ p ∈ t, p.2 ∈ f p.1
F : (t : Finset (α × ℝ)) → Finset (α × ℝ)
hF :
  ∀ (t : Finset (α × ℝ)),
    P t →
      t ⊆ F t ∧
        P (F t) ∧
          (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ F t, closedBall p.1 p.2) ≤
            HMul.hMul (β := ℝ≥0∞) ((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1)
              ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ t, closedBall p.1 p.2) : ℝ≥0∞)
u : (n : ℕ) → Finset (α × ℝ) := fun (n : ℕ) ↦ F^[n] ∅
u_succ : ∀ (n : ℕ), u n.succ = F (u n)
Pu : ∀ (n : ℕ), P (u n)
A :
  ∀ (n : ℕ),
    LE.le (α := ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞)
          (s \
            ⋃ (p : α × ℝ),
              ⋃ (_ : Membership.mem (γ := Set (α × ℝ)) (⋃ (n : ℕ), (↑(u n) : Set (α × ℝ))) p), closedBall p.1 p.2) :
        ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) : ℝ≥0∞)
B :
  ∀ (n : ℕ),
    (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) ≤
      HMul.hMul (β := ℝ≥0∞) (((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1) ^ n)
        ((μ : (a : Set α) → ℝ≥0∞) s : ℝ≥0∞)
⊢ Tendsto (α := ℕ) (HPow.hPow ((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1)) atTop (𝓝 0)
have hr : (↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1 < 1
Tactic: apply ENNReal.tendsto_pow_atTop_nhds_zero_of_lt_one
-- Lean 4 proof step from Mathlib.MeasureTheory.Covering.Besicovitch (goal)
Goal:
α : Type u_1
inst : MetricSpace α
inst_1 : SecondCountableTopology α
inst_2 : MeasurableSpace α
inst_3 : OpensMeasurableSpace α
inst_4 : HasBesicovitchCovering α
μ : Measure α
inst_5 : IsFiniteMeasure μ
f : α → Set ℝ
s : Set α
hf : ∀ x ∈ s, ∀ δ > 0, (f x ∩ Ioo 0 δ).Nonempty
N : ℕ
τ : ℝ
hτ : 1 < τ
hN : IsEmpty.{u_1 + 1} (SatelliteConfig α N τ)
P : Finset (α × ℝ) → Prop :=
  fun (t : Finset (α × ℝ)) ↦
    ((↑t : Set (α × ℝ)).PairwiseDisjoint (α := Set α) fun (p : α × ℝ) ↦ closedBall p.1 p.2) ∧
      (∀ p ∈ t, p.1 ∈ s) ∧ ∀ p ∈ t, p.2 ∈ f p.1
F : (t : Finset (α × ℝ)) → Finset (α × ℝ)
hF :
  ∀ (t : Finset (α × ℝ)),
    P t →
      t ⊆ F t ∧
        P (F t) ∧
          (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ F t, closedBall p.1 p.2) ≤
            HMul.hMul (β := ℝ≥0∞) ((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1)
              ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ t, closedBall p.1 p.2) : ℝ≥0∞)
u : (n : ℕ) → Finset (α × ℝ) := fun (n : ℕ) ↦ F^[n] ∅
u_succ : ∀ (n : ℕ), u n.succ = F (u n)
Pu : ∀ (n : ℕ), P (u n)
A :
  ∀ (n : ℕ),
    LE.le (α := ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞)
          (s \
            ⋃ (p : α × ℝ),
              ⋃ (_ : Membership.mem (γ := Set (α × ℝ)) (⋃ (n : ℕ), (↑(u n) : Set (α × ℝ))) p), closedBall p.1 p.2) :
        ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) : ℝ≥0∞)
B :
  ∀ (n : ℕ),
    (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) ≤
      HMul.hMul (β := ℝ≥0∞) (((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1) ^ n)
        ((μ : (a : Set α) → ℝ≥0∞) s : ℝ≥0∞)
⊢ (↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1 < 1
have hr : (↑N : ℝ≥0∞) < HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1
Tactic: rw [ENNReal.div_lt_iff, one_mul]
-- Lean 4 proof step from Mathlib.MeasureTheory.Covering.Besicovitch (goal)
Goal:
α : Type u_1
inst : MetricSpace α
inst_1 : SecondCountableTopology α
inst_2 : MeasurableSpace α
inst_3 : OpensMeasurableSpace α
inst_4 : HasBesicovitchCovering α
μ : Measure α
inst_5 : IsFiniteMeasure μ
f : α → Set ℝ
s : Set α
hf : ∀ x ∈ s, ∀ δ > 0, (f x ∩ Ioo 0 δ).Nonempty
N : ℕ
τ : ℝ
hτ : 1 < τ
hN : IsEmpty.{u_1 + 1} (SatelliteConfig α N τ)
P : Finset (α × ℝ) → Prop :=
  fun (t : Finset (α × ℝ)) ↦
    ((↑t : Set (α × ℝ)).PairwiseDisjoint (α := Set α) fun (p : α × ℝ) ↦ closedBall p.1 p.2) ∧
      (∀ p ∈ t, p.1 ∈ s) ∧ ∀ p ∈ t, p.2 ∈ f p.1
F : (t : Finset (α × ℝ)) → Finset (α × ℝ)
hF :
  ∀ (t : Finset (α × ℝ)),
    P t →
      t ⊆ F t ∧
        P (F t) ∧
          (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ F t, closedBall p.1 p.2) ≤
            HMul.hMul (β := ℝ≥0∞) ((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1)
              ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ t, closedBall p.1 p.2) : ℝ≥0∞)
u : (n : ℕ) → Finset (α × ℝ) := fun (n : ℕ) ↦ F^[n] ∅
u_succ : ∀ (n : ℕ), u n.succ = F (u n)
Pu : ∀ (n : ℕ), P (u n)
A :
  ∀ (n : ℕ),
    LE.le (α := ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞)
          (s \
            ⋃ (p : α × ℝ),
              ⋃ (_ : Membership.mem (γ := Set (α × ℝ)) (⋃ (n : ℕ), (↑(u n) : Set (α × ℝ))) p), closedBall p.1 p.2) :
        ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) : ℝ≥0∞)
B :
  ∀ (n : ℕ),
    (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) ≤
      HMul.hMul (β := ℝ≥0∞) (((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1) ^ n)
        ((μ : (a : Set α) → ℝ≥0∞) s : ℝ≥0∞)
hr : (↑N : ℝ≥0∞) < HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1
⊢ (↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1 < 1
have hr₁ : HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1 ≠ 0 ∨ Ne (α := ℝ≥0∞) (↑N : ℝ≥0∞) 0
Tactic: rw [ENNReal.div_lt_iff, one_mul]
-- Lean 4 proof step from Mathlib.MeasureTheory.Covering.Besicovitch (goal)
Goal:
α : Type u_1
inst : MetricSpace α
inst_1 : SecondCountableTopology α
inst_2 : MeasurableSpace α
inst_3 : OpensMeasurableSpace α
inst_4 : HasBesicovitchCovering α
μ : Measure α
inst_5 : IsFiniteMeasure μ
f : α → Set ℝ
s : Set α
hf : ∀ x ∈ s, ∀ δ > 0, (f x ∩ Ioo 0 δ).Nonempty
N : ℕ
τ : ℝ
hτ : 1 < τ
hN : IsEmpty.{u_1 + 1} (SatelliteConfig α N τ)
P : Finset (α × ℝ) → Prop :=
  fun (t : Finset (α × ℝ)) ↦
    ((↑t : Set (α × ℝ)).PairwiseDisjoint (α := Set α) fun (p : α × ℝ) ↦ closedBall p.1 p.2) ∧
      (∀ p ∈ t, p.1 ∈ s) ∧ ∀ p ∈ t, p.2 ∈ f p.1
F : (t : Finset (α × ℝ)) → Finset (α × ℝ)
hF :
  ∀ (t : Finset (α × ℝ)),
    P t →
      t ⊆ F t ∧
        P (F t) ∧
          (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ F t, closedBall p.1 p.2) ≤
            HMul.hMul (β := ℝ≥0∞) ((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1)
              ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ t, closedBall p.1 p.2) : ℝ≥0∞)
u : (n : ℕ) → Finset (α × ℝ) := fun (n : ℕ) ↦ F^[n] ∅
u_succ : ∀ (n : ℕ), u n.succ = F (u n)
Pu : ∀ (n : ℕ), P (u n)
A :
  ∀ (n : ℕ),
    LE.le (α := ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞)
          (s \
            ⋃ (p : α × ℝ),
              ⋃ (_ : Membership.mem (γ := Set (α × ℝ)) (⋃ (n : ℕ), (↑(u n) : Set (α × ℝ))) p), closedBall p.1 p.2) :
        ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) : ℝ≥0∞)
B :
  ∀ (n : ℕ),
    (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) ≤
      HMul.hMul (β := ℝ≥0∞) (((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1) ^ n)
        ((μ : (a : Set α) → ℝ≥0∞) s : ℝ≥0∞)
hr : (↑N : ℝ≥0∞) < HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1
hr₁ : HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1 ≠ 0 ∨ Ne (α := ℝ≥0∞) (↑N : ℝ≥0∞) 0
⊢ (↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1 < 1
have hr₂ : HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1 ≠ ∞ ∨ Ne (α := ℝ≥0∞) (↑N : ℝ≥0∞) ∞
Tactic: rw [ENNReal.div_lt_iff, one_mul]
-- Lean 4 proof step from Mathlib.MeasureTheory.Covering.Besicovitch (goal)
Goal:
α : Type u_1
inst : MetricSpace α
inst_1 : SecondCountableTopology α
inst_2 : MeasurableSpace α
inst_3 : OpensMeasurableSpace α
inst_4 : HasBesicovitchCovering α
μ : Measure α
inst_5 : IsFiniteMeasure μ
f : α → Set ℝ
s : Set α
hf : ∀ x ∈ s, ∀ δ > 0, (f x ∩ Ioo 0 δ).Nonempty
N : ℕ
τ : ℝ
hτ : 1 < τ
hN : IsEmpty.{u_1 + 1} (SatelliteConfig α N τ)
P : Finset (α × ℝ) → Prop :=
  fun (t : Finset (α × ℝ)) ↦
    ((↑t : Set (α × ℝ)).PairwiseDisjoint (α := Set α) fun (p : α × ℝ) ↦ closedBall p.1 p.2) ∧
      (∀ p ∈ t, p.1 ∈ s) ∧ ∀ p ∈ t, p.2 ∈ f p.1
F : (t : Finset (α × ℝ)) → Finset (α × ℝ)
hF :
  ∀ (t : Finset (α × ℝ)),
    P t →
      t ⊆ F t ∧
        P (F t) ∧
          (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ F t, closedBall p.1 p.2) ≤
            HMul.hMul (β := ℝ≥0∞) ((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1)
              ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ t, closedBall p.1 p.2) : ℝ≥0∞)
u : (n : ℕ) → Finset (α × ℝ) := fun (n : ℕ) ↦ F^[n] ∅
u_succ : ∀ (n : ℕ), u n.succ = F (u n)
Pu : ∀ (n : ℕ), P (u n)
A :
  ∀ (n : ℕ),
    LE.le (α := ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞)
          (s \
            ⋃ (p : α × ℝ),
              ⋃ (_ : Membership.mem (γ := Set (α × ℝ)) (⋃ (n : ℕ), (↑(u n) : Set (α × ℝ))) p), closedBall p.1 p.2) :
        ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) : ℝ≥0∞)
B :
  ∀ (n : ℕ),
    (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) ≤
      HMul.hMul (β := ℝ≥0∞) (((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1) ^ n)
        ((μ : (a : Set α) → ℝ≥0∞) s : ℝ≥0∞)
| (↑N : ℝ≥0∞)
have rw : HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 0
Tactic: rw [← add_zero (N : ℝ≥0∞)]
-- Lean 4 proof step from Mathlib.MeasureTheory.Covering.Besicovitch (goal)
Goal:
α : Type u_1
inst : MetricSpace α
inst_1 : SecondCountableTopology α
inst_2 : MeasurableSpace α
inst_3 : OpensMeasurableSpace α
inst_4 : HasBesicovitchCovering α
μ : Measure α
inst_5 : IsFiniteMeasure μ
f : α → Set ℝ
s : Set α
hf : ∀ x ∈ s, ∀ δ > 0, (f x ∩ Ioo 0 δ).Nonempty
N : ℕ
τ : ℝ
hτ : 1 < τ
hN : IsEmpty.{u_1 + 1} (SatelliteConfig α N τ)
P : Finset (α × ℝ) → Prop :=
  fun (t : Finset (α × ℝ)) ↦
    ((↑t : Set (α × ℝ)).PairwiseDisjoint (α := Set α) fun (p : α × ℝ) ↦ closedBall p.1 p.2) ∧
      (∀ p ∈ t, p.1 ∈ s) ∧ ∀ p ∈ t, p.2 ∈ f p.1
F : (t : Finset (α × ℝ)) → Finset (α × ℝ)
hF :
  ∀ (t : Finset (α × ℝ)),
    P t →
      t ⊆ F t ∧
        P (F t) ∧
          (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ F t, closedBall p.1 p.2) ≤
            HMul.hMul (β := ℝ≥0∞) ((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1)
              ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ t, closedBall p.1 p.2) : ℝ≥0∞)
u : (n : ℕ) → Finset (α × ℝ) := fun (n : ℕ) ↦ F^[n] ∅
u_succ : ∀ (n : ℕ), u n.succ = F (u n)
Pu : ∀ (n : ℕ), P (u n)
A :
  ∀ (n : ℕ),
    LE.le (α := ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞)
          (s \
            ⋃ (p : α × ℝ),
              ⋃ (_ : Membership.mem (γ := Set (α × ℝ)) (⋃ (n : ℕ), (↑(u n) : Set (α × ℝ))) p), closedBall p.1 p.2) :
        ℝ≥0∞)
      ((μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) : ℝ≥0∞)
B :
  ∀ (n : ℕ),
    (μ : (a : Set α) → ℝ≥0∞) (s \ ⋃ p ∈ u n, closedBall p.1 p.2) ≤
      HMul.hMul (β := ℝ≥0∞) (((↑N : ℝ≥0∞) / HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1) ^ n)
        ((μ : (a : Set α) → ℝ≥0∞) s : ℝ≥0∞)
⊢ (↑N : ℝ≥0∞) < HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1
have hr : HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 0 < HAdd.hAdd (α := ℝ≥0∞) (↑N : ℝ≥0∞) 1
Tactic: conv_lhs => rw [← add_zero (N : ℝ≥0∞)]