∀ {G : Type u} {α : Type w} {m : MeasurableSpace α} [inst : AddGroup G] [inst_1 : AddAction G α]
  {μ : MeasureTheory.Measure α} [MeasureTheory.VAddInvariantMeasure G α μ] (c : G) {s t : Set α},
  c +ᵥ s =ᵐ[μ] c +ᵥ t ↔ s =ᵐ[μ] t