∀ {α : Type u_1} [inst : Mul α] [inst_1 : PartialOrder α] [inst_2 : DecidableEq α] [MulLeftStrictMono α]
  [MulRightStrictMono α] [inst_5 : LocallyFiniteOrder α] (a b c d : α),
  Finset.Icc a b * Finset.Ico c d ⊆ Finset.Ico (a * c) (b * d)