∀ {α : Type u_1} {m : MeasurableSpace α} {M : Type u_3} [inst : TopologicalSpace M] [inst_1 : AddCommMonoid M]
  [inst_2 : PartialOrder M] [IsOrderedAddMonoid M] [OrderClosedTopology M] (v w : MeasureTheory.VectorMeasure α M)
  {i j : Set α},
  MeasurableSet i →
    v.restrict i ≤ w.restrict i →
      MeasurableSet j → v.restrict j ≤ w.restrict j → v.restrict (i ∪ j) ≤ w.restrict (i ∪ j)