(𝕜 : Type u) →
  (A : Type v) →
    {inst : NontriviallyNormedField 𝕜} →
      {inst_1 : NonUnitalNormedRing A} →
        {inst_2 : NormedSpace 𝕜 A} →
          {inst_3 : SMulCommClass 𝕜 A A} →
            {inst_4 : IsScalarTower 𝕜 A A} → [SizeOf 𝕜] → [SizeOf A] → SizeOf (DoubleCentralizer 𝕜 A)