<math>
<apply>
<eq/>
<apply>
<semantics>
<mi>rank</mi>
<annotation-xml encoding="OpenMath">
<OMS name="rank" cd="linalg3" xmlns="http://www.openmath.org/OpenMath"/>
</annotation-xml>
</semantics>
<apply>
<times/>
<apply> <transpose/> <ci>u</ci> </apply>
<ci>v</ci>
</apply>
</apply>
<cn>1</cn>
</apply>
</math>