{R : Type u} →
  [inst : CommRing R] →
    {A B : Type v} →
      [inst_1 : Ring A] →
        [inst_2 : Ring B] →
          [inst_3 : Algebra R A] → [inst_4 : Algebra R B] → (A →ₐ[R] B) → (AlgCat.of R A ⟶ AlgCat.of R B)