{P : Sort u_1} →
  {R : Type u} →
    {inst : Ring R} →
      {t : Subring R} →
        {R' : Type u} →
          {inst' : Ring R'} → {t' : Subring R'} → R = R' → inst ≍ inst' → t ≍ t' → Subring.noConfusionType P t t'