∀ {R₁ : Type u_3} [inst : CommRing R₁] {K : Type u_4} [inst_1 : Field K] [inst_2 : Algebra R₁ K] [IsFractionRing R₁ K]
  [IsDomain R₁] {I J : FractionalIdeal (nonZeroDivisors R₁) K}, J ≠ 0 → IsFractional (nonZeroDivisors R₁) (↑I / ↑J)