Theorem: MeasureTheory.Measure.measure_isMulInvariant_eq_smul_of_isCompact_closure_of_innerRegularCompactLTTop
File: Mathlib/MeasureTheory/Measure/Haar/Unique.lean

Proof steps:
state_before: G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
⊢ μ' s = μ'.haarScalarFactor μ • μ s
state_after: G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
⊢ μ' s ≤ μ'.haarScalarFactor μ • μ s
tactic: apply le_antisymm ?_ (smul_measure_isMulInvariant_le_of_isCompact_closure μ' μ hs h's)
state_before: G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
⊢ μ' s ≤ μ'.haarScalarFactor μ • μ s
state_after: G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
⊢ μ' s ≤ μ'.haarScalarFactor μ • μ s
tactic: let ν := haarScalarFactor μ' μ • μ
state_before: G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
⊢ μ' s ≤ μ'.haarScalarFactor μ • μ s
state_after: G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
⊢ μ' s ≤ ν s
tactic: change μ' s ≤ ν s
state_before: G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
⊢ μ' s ≤ ν s
state_after: case intro.mk.intro.intro.intro
G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
f : G → ℝ
f_cont : Continuous f
hf : EqOn (⇑{ toFun := f, continuous_toFun := f_cont }) 1 (closure s)
f_comp : HasCompactSupport ⇑{ toFun := f, continuous_toFun := f_cont }
⊢ μ' s ≤ ν s
tactic: obtain ⟨⟨f, f_cont⟩, hf, -, f_comp, -⟩ : ∃ f : C(G, ℝ), EqOn f 1 (closure s) ∧ EqOn f 0 ∅
      ∧ HasCompactSupport f ∧ ∀ x, f x ∈ Icc (0 : ℝ) 1 :=
    exists_continuous_one_zero_of_isCompact h's isClosed_empty (disjoint_empty _)
state_before: case intro.mk.intro.intro.intro
G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
f : G → ℝ
f_cont : Continuous f
hf : EqOn (⇑{ toFun := f, continuous_toFun := f_cont }) 1 (closure s)
f_comp : HasCompactSupport ⇑{ toFun := f, continuous_toFun := f_cont }
⊢ μ' s ≤ ν s
state_after: case intro.mk.intro.intro.intro
G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
f : G → ℝ
f_cont : Continuous f
hf : EqOn (⇑{ toFun := f, continuous_toFun := f_cont }) 1 (closure s)
f_comp : HasCompactSupport ⇑{ toFun := f, continuous_toFun := f_cont }
t : Set G := f ⁻¹' {1}
⊢ μ' s ≤ ν s
tactic: let t := f ⁻¹' {1}
state_before: case intro.mk.intro.intro.intro
G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
f : G → ℝ
f_cont : Continuous f
hf : EqOn (⇑{ toFun := f, continuous_toFun := f_cont }) 1 (closure s)
f_comp : HasCompactSupport ⇑{ toFun := f, continuous_toFun := f_cont }
t : Set G := f ⁻¹' {1}
⊢ μ' s ≤ ν s
state_after: case intro.mk.intro.intro.intro
G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
f : G → ℝ
f_cont : Continuous f
hf : EqOn (⇑{ toFun := f, continuous_toFun := f_cont }) 1 (closure s)
f_comp : HasCompactSupport ⇑{ toFun := f, continuous_toFun := f_cont }
t : Set G := f ⁻¹' {1}
t_closed : IsClosed t
⊢ μ' s ≤ ν s
tactic: have t_closed : IsClosed t := isClosed_singleton.preimage f_cont
state_before: case intro.mk.intro.intro.intro
G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
f : G → ℝ
f_cont : Continuous f
hf : EqOn (⇑{ toFun := f, continuous_toFun := f_cont }) 1 (closure s)
f_comp : HasCompactSupport ⇑{ toFun := f, continuous_toFun := f_cont }
t : Set G := f ⁻¹' {1}
t_closed : IsClosed t
⊢ μ' s ≤ ν s
state_after: case intro.mk.intro.intro.intro
G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
f : G → ℝ
f_cont : Continuous f
hf : EqOn (⇑{ toFun := f, continuous_toFun := f_cont }) 1 (closure s)
f_comp : HasCompactSupport ⇑{ toFun := f, continuous_toFun := f_cont }
t : Set G := f ⁻¹' {1}
t_closed : IsClosed t
t_comp : IsCompact t
⊢ μ' s ≤ ν s
tactic: have t_comp : IsCompact t := f_comp.isCompact_preimage f_cont isClosed_singleton (by simp)
state_before: case intro.mk.intro.intro.intro
G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
f : G → ℝ
f_cont : Continuous f
hf : EqOn (⇑{ toFun := f, continuous_toFun := f_cont }) 1 (closure s)
f_comp : HasCompactSupport ⇑{ toFun := f, continuous_toFun := f_cont }
t : Set G := f ⁻¹' {1}
t_closed : IsClosed t
t_comp : IsCompact t
⊢ μ' s ≤ ν s
state_after: case intro.mk.intro.intro.intro
G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
f : G → ℝ
f_cont : Continuous f
hf : EqOn (⇑{ toFun := f, continuous_toFun := f_cont }) 1 (closure s)
f_comp : HasCompactSupport ⇑{ toFun := f, continuous_toFun := f_cont }
t : Set G := f ⁻¹' {1}
t_closed : IsClosed t
t_comp : IsCompact t
st : s ⊆ t
⊢ μ' s ≤ ν s
tactic: have st : s ⊆ t := (IsClosed.closure_subset_iff t_closed).mp hf
state_before: case intro.mk.intro.intro.intro
G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
f : G → ℝ
f_cont : Continuous f
hf : EqOn (⇑{ toFun := f, continuous_toFun := f_cont }) 1 (closure s)
f_comp : HasCompactSupport ⇑{ toFun := f, continuous_toFun := f_cont }
t : Set G := f ⁻¹' {1}
t_closed : IsClosed t
t_comp : IsCompact t
st : s ⊆ t
⊢ μ' s ≤ ν s
state_after: case intro.mk.intro.intro.intro
G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
f : G → ℝ
f_cont : Continuous f
hf : EqOn (⇑{ toFun := f, continuous_toFun := f_cont }) 1 (closure s)
f_comp : HasCompactSupport ⇑{ toFun := f, continuous_toFun := f_cont }
t : Set G := f ⁻¹' {1}
t_closed : IsClosed t
t_comp : IsCompact t
st : s ⊆ t
A : ν (t \ s) ≤ μ' (t \ s)
⊢ μ' s ≤ ν s
tactic: have A : ν (t \ s) ≤ μ' (t \ s) := by
    apply smul_measure_isMulInvariant_le_of_isCompact_closure _ _ (t_closed.measurableSet.diff hs)
    exact t_comp.closure_of_subset diff_subset
state_before: case intro.mk.intro.intro.intro
G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
f : G → ℝ
f_cont : Continuous f
hf : EqOn (⇑{ toFun := f, continuous_toFun := f_cont }) 1 (closure s)
f_comp : HasCompactSupport ⇑{ toFun := f, continuous_toFun := f_cont }
t : Set G := f ⁻¹' {1}
t_closed : IsClosed t
t_comp : IsCompact t
st : s ⊆ t
A : ν (t \ s) ≤ μ' (t \ s)
⊢ μ' s ≤ ν s
state_after: case intro.mk.intro.intro.intro
G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
f : G → ℝ
f_cont : Continuous f
hf : EqOn (⇑{ toFun := f, continuous_toFun := f_cont }) 1 (closure s)
f_comp : HasCompactSupport ⇑{ toFun := f, continuous_toFun := f_cont }
t : Set G := f ⁻¹' {1}
t_closed : IsClosed t
t_comp : IsCompact t
st : s ⊆ t
A : ν (t \ s) ≤ μ' (t \ s)
B : μ' t = ν t
⊢ μ' s ≤ ν s
tactic: have B : μ' t = ν t :=
    measure_preimage_isMulLeftInvariant_eq_smul_of_hasCompactSupport _ _ f_cont f_comp
state_before: case intro.mk.intro.intro.intro
G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
f : G → ℝ
f_cont : Continuous f
hf : EqOn (⇑{ toFun := f, continuous_toFun := f_cont }) 1 (closure s)
f_comp : HasCompactSupport ⇑{ toFun := f, continuous_toFun := f_cont }
t : Set G := f ⁻¹' {1}
t_closed : IsClosed t
t_comp : IsCompact t
st : s ⊆ t
A : ν (t \ s) ≤ μ' (t \ s)
B : μ' t = ν t
⊢ μ' s ≤ ν s
state_after: case intro.mk.intro.intro.intro.h
G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
f : G → ℝ
f_cont : Continuous f
hf : EqOn (⇑{ toFun := f, continuous_toFun := f_cont }) 1 (closure s)
f_comp : HasCompactSupport ⇑{ toFun := f, continuous_toFun := f_cont }
t : Set G := f ⁻¹' {1}
t_closed : IsClosed t
t_comp : IsCompact t
st : s ⊆ t
A : μ' t - ν s ≤ μ' t - μ' s
B : μ' t = ν t
⊢ μ' s ≤ μ' t

case intro.mk.intro.intro.intro.h'
G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
f : G → ℝ
f_cont : Continuous f
hf : EqOn (⇑{ toFun := f, continuous_toFun := f_cont }) 1 (closure s)
f_comp : HasCompactSupport ⇑{ toFun := f, continuous_toFun := f_cont }
t : Set G := f ⁻¹' {1}
t_closed : IsClosed t
t_comp : IsCompact t
st : s ⊆ t
A : μ' t - ν s ≤ μ' t - μ' s
B : μ' t = ν t
⊢ μ' t ≠ ⊤

case intro.mk.intro.intro.intro
G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
f : G → ℝ
f_cont : Continuous f
hf : EqOn (⇑{ toFun := f, continuous_toFun := f_cont }) 1 (closure s)
f_comp : HasCompactSupport ⇑{ toFun := f, continuous_toFun := f_cont }
t : Set G := f ⁻¹' {1}
t_closed : IsClosed t
t_comp : IsCompact t
st : s ⊆ t
A : ν t - ν s ≤ μ' (t \ s)
B : μ' t = ν t
⊢ μ' s ≠ ⊤

case intro.mk.intro.intro.intro
G : Type u_1
inst✝⁹ : TopologicalSpace G
inst✝⁸ : Group G
inst✝⁷ : TopologicalGroup G
inst✝⁶ : MeasurableSpace G
inst✝⁵ : BorelSpace G
inst✝⁴ : LocallyCompactSpace G
μ' μ : Measure G
inst✝³ : μ.IsHaarMeasure
inst✝² : IsFiniteMeasureOnCompacts μ'
inst✝¹ : μ'.IsMulLeftInvariant
inst✝ : μ.InnerRegularCompactLTTop
s : Set G
hs : MeasurableSet s
h's : IsCompact (closure s)
ν : Measure G := μ'.haarScalarFactor μ • μ
f : G → ℝ
f_cont : Continuous f
hf : EqOn (⇑{ toFun := f, continuous_toFun := f_cont }) 1 (closure s)
f_comp : HasCompactSupport ⇑{ toFun := f, continuous_toFun := f_cont }
t : Set G := f ⁻¹' {1}
t_closed : IsClosed t
t_comp : IsCompact t
st : s ⊆ t
A : ν (t \ s) ≤ μ' (t \ s)
B : μ' t = ν t
⊢ ν s ≠ ⊤
tactic: rwa [measure_diff st hs, measure_diff st hs, ← B, ENNReal.sub_le_sub_iff_left] at A