{N : Type u_1} →
  {E : Type u_2} →
    {G : Type u_3} →
      {inst : AddGroup N} →
        {inst_1 : AddGroup E} →
          {inst_2 : AddGroup G} →
            (S : AddGroupExtension N E G) → [SizeOf N] → [SizeOf E] → [SizeOf G] → SizeOf S.Section