
<!DOCTYPE math
  PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<declare type="vector">
  <ci> V </ci>
  <vector>
    <cn> 1 </cn><cn> 2 </cn><cn> 3 </cn>
  </vector>
</declare>
</math>
