Example ex3-40

Prev: ex3-39

Next: ex3-41

<math>
<semantics>
  <mrow>
    <mpadded width="0"> <mi> C </mi> </mpadded>
    <mspace width="0.3em"/>
    <mtext> | </mtext>
  </mrow>
  <annotation-xml encoding="MathML-Presentation">
    <mi> ℂ </mi>
  </annotation-xml>
</semantics>
</math>