∀ {ι : Type u_1} {R' : Type u_4} {R : Type u_2} {A : ι → Type u_3} [inst : CommSemiring R'] [inst_1 : CommSemiring R]
  [inst_2 : (i : ι) → Semiring (A i)] [inst_3 : Algebra R' R] [inst_4 : (i : ι) → Algebra R (A i)], 0 • 1 = 0