Theorem: MeasureTheory.limsup_measure_closed_le_of_forall_tendsto_measure
File: Mathlib/MeasureTheory/Measure/Portmanteau.lean

Proof steps:
state_before: Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
⊢ limsup (fun i => (μs i) F) L ≤ μ F
state_after: Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
⊢ limsup (fun i => (μs i) F) L ≤ μ F
tactic: have ex := exists_null_frontiers_thickening μ F
state_before: Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
⊢ limsup (fun i => (μs i) F) L ≤ μ F
state_after: Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
⊢ limsup (fun i => (μs i) F) L ≤ μ F
tactic: let rs := Classical.choose ex
state_before: Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
⊢ limsup (fun i => (μs i) F) L ≤ μ F
state_after: Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_lim : Tendsto rs atTop (𝓝 0)
⊢ limsup (fun i => (μs i) F) L ≤ μ F
tactic: have rs_lim : Tendsto rs atTop (𝓝 0) := (Classical.choose_spec ex).1
state_before: Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_lim : Tendsto rs atTop (𝓝 0)
⊢ limsup (fun i => (μs i) F) L ≤ μ F
state_after: Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_lim : Tendsto rs atTop (𝓝 0)
rs_pos : ∀ (n : ℕ), 0 < rs n
⊢ limsup (fun i => (μs i) F) L ≤ μ F
tactic: have rs_pos : ∀ n, 0 < rs n := fun n ↦ ((Classical.choose_spec ex).2 n).1
state_before: Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_lim : Tendsto rs atTop (𝓝 0)
rs_pos : ∀ (n : ℕ), 0 < rs n
⊢ limsup (fun i => (μs i) F) L ≤ μ F
state_after: Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_lim : Tendsto rs atTop (𝓝 0)
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
⊢ limsup (fun i => (μs i) F) L ≤ μ F
tactic: have rs_null : ∀ n, μ (frontier (Metric.thickening (rs n) F)) = 0 :=
    fun n ↦ ((Classical.choose_spec ex).2 n).2
state_before: Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_lim : Tendsto rs atTop (𝓝 0)
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
⊢ limsup (fun i => (μs i) F) L ≤ μ F
state_after: Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_lim : Tendsto rs atTop (𝓝 0)
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
⊢ limsup (fun i => (μs i) F) L ≤ μ F
tactic: have Fthicks_open : ∀ n, IsOpen (Metric.thickening (rs n) F) :=
    fun n ↦ Metric.isOpen_thickening
state_before: Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_lim : Tendsto rs atTop (𝓝 0)
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
⊢ limsup (fun i => (μs i) F) L ≤ μ F
state_after: Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_lim : Tendsto rs atTop (𝓝 0)
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
⊢ limsup (fun i => (μs i) F) L ≤ μ F
tactic: have key := fun (n : ℕ) ↦ h (Fthicks_open n).measurableSet (rs_null n)
state_before: Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_lim : Tendsto rs atTop (𝓝 0)
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
⊢ limsup (fun i => (μs i) F) L ≤ μ F
state_after: case h
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_lim : Tendsto rs atTop (𝓝 0)
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
⊢ ∀ (ε : ℝ≥0), 0 < ε → μ F < ⊤ → limsup (fun i => (μs i) F) L ≤ μ F + ↑ε
tactic: apply ENNReal.le_of_forall_pos_le_add
state_before: case h
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_lim : Tendsto rs atTop (𝓝 0)
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
⊢ ∀ (ε : ℝ≥0), 0 < ε → μ F < ⊤ → limsup (fun i => (μs i) F) L ≤ μ F + ↑ε
state_after: case h
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_lim : Tendsto rs atTop (𝓝 0)
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
⊢ limsup (fun i => (μs i) F) L ≤ μ F + ↑ε
tactic: intros ε ε_pos μF_finite
state_before: case h
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_lim : Tendsto rs atTop (𝓝 0)
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
⊢ limsup (fun i => (μs i) F) L ≤ μ F + ↑ε
state_after: case h
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_lim : Tendsto rs atTop (𝓝 0)
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
keyB : Tendsto (fun r => μ (Metric.cthickening r F)) (𝓝 0) (𝓝 (μ F))
⊢ limsup (fun i => (μs i) F) L ≤ μ F + ↑ε
tactic: have keyB := tendsto_measure_cthickening_of_isClosed (μ := μ) (s := F)
                ⟨1, ⟨by simp only [gt_iff_lt, zero_lt_one], measure_ne_top _ _⟩⟩ F_closed
state_before: case h
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_lim : Tendsto rs atTop (𝓝 0)
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
keyB : Tendsto (fun r => μ (Metric.cthickening r F)) (𝓝 0) (𝓝 (μ F))
⊢ limsup (fun i => (μs i) F) L ≤ μ F + ↑ε
state_after: case h
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_lim : Tendsto rs atTop (𝓝 0)
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
keyB : Tendsto (fun r => μ (Metric.cthickening r F)) (𝓝 0) (𝓝 (μ F))
nhd : Iio (μ F + ↑ε) ∈ 𝓝 (μ F)
⊢ limsup (fun i => (μs i) F) L ≤ μ F + ↑ε
tactic: have nhd : Iio (μ F + ε) ∈ 𝓝 (μ F) := by
    apply Iio_mem_nhds
    exact ENNReal.lt_add_right μF_finite.ne (ENNReal.coe_pos.mpr ε_pos).ne'
state_before: case h
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_lim : Tendsto rs atTop (𝓝 0)
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
keyB : Tendsto (fun r => μ (Metric.cthickening r F)) (𝓝 0) (𝓝 (μ F))
nhd : Iio (μ F + ↑ε) ∈ 𝓝 (μ F)
⊢ limsup (fun i => (μs i) F) L ≤ μ F + ↑ε
state_after: case h
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
keyB : Tendsto (fun r => μ (Metric.cthickening r F)) (𝓝 0) (𝓝 (μ F))
nhd : Iio (μ F + ↑ε) ∈ 𝓝 (μ F)
rs_lim : (fun r => μ (Metric.cthickening r F)) ⁻¹' Iio (μ F + ↑ε) ∈ map rs atTop
⊢ limsup (fun i => (μs i) F) L ≤ μ F + ↑ε
tactic: specialize rs_lim (keyB nhd)
state_before: case h
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
keyB : Tendsto (fun r => μ (Metric.cthickening r F)) (𝓝 0) (𝓝 (μ F))
nhd : Iio (μ F + ↑ε) ∈ 𝓝 (μ F)
rs_lim : (fun r => μ (Metric.cthickening r F)) ⁻¹' Iio (μ F + ↑ε) ∈ map rs atTop
⊢ limsup (fun i => (μs i) F) L ≤ μ F + ↑ε
state_after: case h
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
keyB : Tendsto (fun r => μ (Metric.cthickening r F)) (𝓝 0) (𝓝 (μ F))
nhd : Iio (μ F + ↑ε) ∈ 𝓝 (μ F)
rs_lim : ∃ a, ∀ b ≥ a, μ (Metric.cthickening (rs b) F) < μ F + ↑ε
⊢ limsup (fun i => (μs i) F) L ≤ μ F + ↑ε
tactic: simp only [mem_map, mem_atTop_sets, mem_preimage, mem_Iio] at rs_lim
state_before: case h
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
keyB : Tendsto (fun r => μ (Metric.cthickening r F)) (𝓝 0) (𝓝 (μ F))
nhd : Iio (μ F + ↑ε) ∈ 𝓝 (μ F)
rs_lim : ∃ a, ∀ b ≥ a, μ (Metric.cthickening (rs b) F) < μ F + ↑ε
⊢ limsup (fun i => (μs i) F) L ≤ μ F + ↑ε
state_after: case h.intro
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
keyB : Tendsto (fun r => μ (Metric.cthickening r F)) (𝓝 0) (𝓝 (μ F))
nhd : Iio (μ F + ↑ε) ∈ 𝓝 (μ F)
m : ℕ
hm : ∀ b ≥ m, μ (Metric.cthickening (rs b) F) < μ F + ↑ε
⊢ limsup (fun i => (μs i) F) L ≤ μ F + ↑ε
tactic: obtain ⟨m, hm⟩ := rs_lim
state_before: case h.intro
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
keyB : Tendsto (fun r => μ (Metric.cthickening r F)) (𝓝 0) (𝓝 (μ F))
nhd : Iio (μ F + ↑ε) ∈ 𝓝 (μ F)
m : ℕ
hm : ∀ b ≥ m, μ (Metric.cthickening (rs b) F) < μ F + ↑ε
⊢ limsup (fun i => (μs i) F) L ≤ μ F + ↑ε
state_after: case h.intro
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
keyB : Tendsto (fun r => μ (Metric.cthickening r F)) (𝓝 0) (𝓝 (μ F))
nhd : Iio (μ F + ↑ε) ∈ 𝓝 (μ F)
m : ℕ
hm : ∀ b ≥ m, μ (Metric.cthickening (rs b) F) < μ F + ↑ε
aux' : ∀ (i : ι), (μs i) F ≤ (μs i) (Metric.thickening (rs m) F)
⊢ limsup (fun i => (μs i) F) L ≤ μ F + ↑ε
tactic: have aux' := fun i ↦ measure_mono (μ := μs i) (Metric.self_subset_thickening (rs_pos m) F)
state_before: case h.intro
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
keyB : Tendsto (fun r => μ (Metric.cthickening r F)) (𝓝 0) (𝓝 (μ F))
nhd : Iio (μ F + ↑ε) ∈ 𝓝 (μ F)
m : ℕ
hm : ∀ b ≥ m, μ (Metric.cthickening (rs b) F) < μ F + ↑ε
aux' : ∀ (i : ι), (μs i) F ≤ (μs i) (Metric.thickening (rs m) F)
⊢ limsup (fun i => (μs i) F) L ≤ μ F + ↑ε
state_after: case h.intro
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
keyB : Tendsto (fun r => μ (Metric.cthickening r F)) (𝓝 0) (𝓝 (μ F))
nhd : Iio (μ F + ↑ε) ∈ 𝓝 (μ F)
m : ℕ
hm : ∀ b ≥ m, μ (Metric.cthickening (rs b) F) < μ F + ↑ε
aux' : ∀ (i : ι), (μs i) F ≤ (μs i) (Metric.thickening (rs m) F)
aux : (fun i => (μs i) F) ≤ᶠ[L] fun i => (μs i) (Metric.thickening (rs m) F)
⊢ limsup (fun i => (μs i) F) L ≤ μ F + ↑ε
tactic: have aux : (fun i ↦ (μs i F)) ≤ᶠ[L] (fun i ↦ μs i (Metric.thickening (rs m) F)) :=
    eventually_of_forall aux'
state_before: case h.intro
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
keyB : Tendsto (fun r => μ (Metric.cthickening r F)) (𝓝 0) (𝓝 (μ F))
nhd : Iio (μ F + ↑ε) ∈ 𝓝 (μ F)
m : ℕ
hm : ∀ b ≥ m, μ (Metric.cthickening (rs b) F) < μ F + ↑ε
aux' : ∀ (i : ι), (μs i) F ≤ (μs i) (Metric.thickening (rs m) F)
aux : (fun i => (μs i) F) ≤ᶠ[L] fun i => (μs i) (Metric.thickening (rs m) F)
⊢ limsup (fun i => (μs i) F) L ≤ μ F + ↑ε
state_after: case h.intro
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
keyB : Tendsto (fun r => μ (Metric.cthickening r F)) (𝓝 0) (𝓝 (μ F))
nhd : Iio (μ F + ↑ε) ∈ 𝓝 (μ F)
m : ℕ
hm : ∀ b ≥ m, μ (Metric.cthickening (rs b) F) < μ F + ↑ε
aux' : ∀ (i : ι), (μs i) F ≤ (μs i) (Metric.thickening (rs m) F)
aux : (fun i => (μs i) F) ≤ᶠ[L] fun i => (μs i) (Metric.thickening (rs m) F)
⊢ limsup (fun i => (μs i) (Metric.thickening (rs m) F)) L ≤ μ F + ↑ε
tactic: refine (limsup_le_limsup aux).trans ?_
state_before: case h.intro
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
keyB : Tendsto (fun r => μ (Metric.cthickening r F)) (𝓝 0) (𝓝 (μ F))
nhd : Iio (μ F + ↑ε) ∈ 𝓝 (μ F)
m : ℕ
hm : ∀ b ≥ m, μ (Metric.cthickening (rs b) F) < μ F + ↑ε
aux' : ∀ (i : ι), (μs i) F ≤ (μs i) (Metric.thickening (rs m) F)
aux : (fun i => (μs i) F) ≤ᶠ[L] fun i => (μs i) (Metric.thickening (rs m) F)
⊢ limsup (fun i => (μs i) (Metric.thickening (rs m) F)) L ≤ μ F + ↑ε
state_after: case h.intro
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
keyB : Tendsto (fun r => μ (Metric.cthickening r F)) (𝓝 0) (𝓝 (μ F))
nhd : Iio (μ F + ↑ε) ∈ 𝓝 (μ F)
m : ℕ
hm : ∀ b ≥ m, μ (Metric.cthickening (rs b) F) < μ F + ↑ε
aux' : ∀ (i : ι), (μs i) F ≤ (μs i) (Metric.thickening (rs m) F)
aux : (fun i => (μs i) F) ≤ᶠ[L] fun i => (μs i) (Metric.thickening (rs m) F)
⊢ μ (Metric.thickening (rs m) F) ≤ μ F + ↑ε
tactic: rw [Tendsto.limsup_eq (key m)]
state_before: case h.intro
Ω✝ : Type u_1
inst✝⁷ : PseudoEMetricSpace Ω✝
inst✝⁶ : MeasurableSpace Ω✝
inst✝⁵ : OpensMeasurableSpace Ω✝
Ω : Type u_2
ι : Type u_3
L : Filter ι
inst✝⁴ : L.NeBot
inst✝³ : MeasurableSpace Ω
inst✝² : PseudoEMetricSpace Ω
inst✝¹ : OpensMeasurableSpace Ω
μ : Measure Ω
inst✝ : IsFiniteMeasure μ
μs : ι → Measure Ω
h : ∀ {E : Set Ω}, MeasurableSet E → μ (frontier E) = 0 → Tendsto (fun i => (μs i) E) L (𝓝 (μ E))
F : Set Ω
F_closed : IsClosed F
ex : ∃ rs, Tendsto rs atTop (𝓝 0) ∧ ∀ (n : ℕ), 0 < rs n ∧ μ (frontier (Metric.thickening (rs n) F)) = 0
rs : ℕ → ℝ := Classical.choose ex
rs_pos : ∀ (n : ℕ), 0 < rs n
rs_null : ∀ (n : ℕ), μ (frontier (Metric.thickening (rs n) F)) = 0
Fthicks_open : ∀ (n : ℕ), IsOpen (Metric.thickening (rs n) F)
key : ∀ (n : ℕ), Tendsto (fun i => (μs i) (Metric.thickening (rs n) F)) L (𝓝 (μ (Metric.thickening (rs n) F)))
ε : ℝ≥0
ε_pos : 0 < ε
μF_finite : μ F < ⊤
keyB : Tendsto (fun r => μ (Metric.cthickening r F)) (𝓝 0) (𝓝 (μ F))
nhd : Iio (μ F + ↑ε) ∈ 𝓝 (μ F)
m : ℕ
hm : ∀ b ≥ m, μ (Metric.cthickening (rs b) F) < μ F + ↑ε
aux' : ∀ (i : ι), (μs i) F ≤ (μs i) (Metric.thickening (rs m) F)
aux : (fun i => (μs i) F) ≤ᶠ[L] fun i => (μs i) (Metric.thickening (rs m) F)
⊢ μ (Metric.thickening (rs m) F) ≤ μ F + ↑ε
state_after: no goals
tactic: apply (measure_mono (Metric.thickening_subset_cthickening (rs m) F)).trans (hm m rfl.le).le