∀ {G : Type u_1} [inst : MeasurableSpace G] [inst_1 : AddGroup G] [MeasurableAdd₂ G] (μ ν : MeasureTheory.Measure G)
  [MeasureTheory.SFinite ν] [MeasureTheory.SFinite μ] [MeasurableNeg G] [μ.IsAddRightInvariant],
  MeasureTheory.MeasurePreserving (fun z => (z.1 - z.2, z.2)) (μ.prod ν) (μ.prod ν)