Module: Mathlib.MeasureTheory.Constructions.Polish.StronglyMeasurable

Goal state before:
pp: case pos
X : Type u_4
E : Type u_5
ι : Type u_6
inst✝⁶ : MeasurableSpace X
inst✝⁵ : CommMonoid E
inst✝⁴ : TopologicalSpace E
inst✝³ : PseudoMetrizableSpace E
inst✝² : ContinuousMul E
L : SummationFilter ι
inst✝¹ : L.NeBot
inst✝ : L.filter.IsCountablyGenerated
μ : Measure X
f : ι → X → E
h : ∀ (i : ι), AEStronglyMeasurable (f i) μ
hm : Multipliable (fun i ↦ f i) L
h✝¹ : L.HasSupport ∧ ((Function.mulSupport fun i ↦ f i) ∩ L.support).Finite
h✝ : Function.HasFiniteMulSupport ((L.support.mulIndicator fun i ↦ f i) ∘ PLift.down)
⊢ AEStronglyMeasurable (∏ i ∈ Finite.toFinset h✝, L.support.mulIndicator (fun i ↦ f i) i.down) μ

pp: case neg
X : Type u_4
E : Type u_5
ι : Type u_6
inst✝⁶ : MeasurableSpace X
inst✝⁵ : CommMonoid E
inst✝⁴ : TopologicalSpace E
inst✝³ : PseudoMetrizableSpace E
inst✝² : ContinuousMul E
L : SummationFilter ι
inst✝¹ : L.NeBot
inst✝ : L.filter.IsCountablyGenerated
μ : Measure X
f : ι → X → E
h : ∀ (i : ι), AEStronglyMeasurable (f i) μ
hm : Multipliable (fun i ↦ f i) L
h✝¹ : L.HasSupport ∧ ((Function.mulSupport fun i ↦ f i) ∩ L.support).Finite
h✝ : ¬Function.HasFiniteMulSupport ((L.support.mulIndicator fun i ↦ f i) ∘ PLift.down)
⊢ AEStronglyMeasurable 1 μ

pp: case pos
X : Type u_4
E : Type u_5
ι : Type u_6
inst✝⁶ : MeasurableSpace X
inst✝⁵ : CommMonoid E
inst✝⁴ : TopologicalSpace E
inst✝³ : PseudoMetrizableSpace E
inst✝² : ContinuousMul E
L : SummationFilter ι
inst✝¹ : L.NeBot
inst✝ : L.filter.IsCountablyGenerated
μ : Measure X
f : ι → X → E
h : ∀ (i : ι), AEStronglyMeasurable (f i) μ
hm : Multipliable (fun i ↦ f i) L
h✝¹ : ¬(L.HasSupport ∧ ((Function.mulSupport fun i ↦ f i) ∩ L.support).Finite)
h✝ : HasProd (fun i ↦ f i) 1 L
⊢ AEStronglyMeasurable 1 μ

pp: case neg
X : Type u_4
E : Type u_5
ι : Type u_6
inst✝⁶ : MeasurableSpace X
inst✝⁵ : CommMonoid E
inst✝⁴ : TopologicalSpace E
inst✝³ : PseudoMetrizableSpace E
inst✝² : ContinuousMul E
L : SummationFilter ι
inst✝¹ : L.NeBot
inst✝ : L.filter.IsCountablyGenerated
μ : Measure X
f : ι → X → E
h : ∀ (i : ι), AEStronglyMeasurable (f i) μ
hm : Multipliable (fun i ↦ f i) L
h✝¹ : ¬(L.HasSupport ∧ ((Function.mulSupport fun i ↦ f i) ∩ L.support).Finite)
h✝ : ¬HasProd (fun i ↦ f i) 1 L
⊢ AEStronglyMeasurable (Exists.choose hm) μ

pp: case neg
X : Type u_4
E : Type u_5
ι : Type u_6
inst✝⁶ : MeasurableSpace X
inst✝⁵ : CommMonoid E
inst✝⁴ : TopologicalSpace E
inst✝³ : PseudoMetrizableSpace E
inst✝² : ContinuousMul E
L : SummationFilter ι
inst✝¹ : L.NeBot
inst✝ : L.filter.IsCountablyGenerated
μ : Measure X
f : ι → X → E
h : ∀ (i : ι), AEStronglyMeasurable (f i) μ
hm : ¬Multipliable (fun i ↦ f i) L
⊢ AEStronglyMeasurable 1 μ

Tactic:
any_goals exact aestronglyMeasurable_one

Goal state after:
case pos
X : Type u_4
E : Type u_5
ι : Type u_6
inst✝⁶ : MeasurableSpace X
inst✝⁵ : CommMonoid E
inst✝⁴ : TopologicalSpace E
inst✝³ : PseudoMetrizableSpace E
inst✝² : ContinuousMul E
L : SummationFilter ι
inst✝¹ : L.NeBot
inst✝ : L.filter.IsCountablyGenerated
μ : Measure X
f : ι → X → E
h : ∀ (i : ι), AEStronglyMeasurable (f i) μ
hm : Multipliable (fun i ↦ f i) L
h✝¹ : L.HasSupport ∧ ((Function.mulSupport fun i ↦ f i) ∩ L.support).Finite
h✝ : Function.HasFiniteMulSupport ((L.support.mulIndicator fun i ↦ f i) ∘ PLift.down)
⊢ AEStronglyMeasurable (∏ i ∈ Finite.toFinset h✝, L.support.mulIndicator (fun i ↦ f i) i.down) μ

case neg
X : Type u_4
E : Type u_5
ι : Type u_6
inst✝⁶ : MeasurableSpace X
inst✝⁵ : CommMonoid E
inst✝⁴ : TopologicalSpace E
inst✝³ : PseudoMetrizableSpace E
inst✝² : ContinuousMul E
L : SummationFilter ι
inst✝¹ : L.NeBot
inst✝ : L.filter.IsCountablyGenerated
μ : Measure X
f : ι → X → E
h : ∀ (i : ι), AEStronglyMeasurable (f i) μ
hm : Multipliable (fun i ↦ f i) L
h✝¹ : ¬(L.HasSupport ∧ ((Function.mulSupport fun i ↦ f i) ∩ L.support).Finite)
h✝ : ¬HasProd (fun i ↦ f i) 1 L
⊢ AEStronglyMeasurable (Exists.choose hm) μ