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Theorems · Theorem · measure theory

MeasureTheory.Measure.haarScalarFactor_pos_of_isHaarMeasure

∀ {G : Type u_1} [inst : TopologicalSpace G] [inst_1 : Group G] [inst_2 : IsTopologicalGroup G]
  [inst_3 : MeasurableSpace G] [inst_4 : BorelSpace G] (μ' μ : MeasureTheory.Measure G) [inst_5 : μ.IsHaarMeasure]
  [inst_6 : μ'.IsHaarMeasure], 0 < μ'.haarScalarFactor μ

The scalar factor between two left-invariant measures is non-zero when both measures are positive on open sets.

Defined in
Mathlib.MeasureTheory.Measure.Haar.Unique
Cited by
5 results in Mathlib
Foundations
Depth 275 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
TopologicalSpaceGroupIsTopologicalGroupMeasurableSpaceBorelSpaceMeasureTheory.Measure.IsHaarMeasureMeasureTheory.Measure.IsHaarMeasure

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