Example exc-075

Prev: exc-074

Next: exc-076

a b a b ab ba

<math>
<apply><forall/>
<bvar><ci>a</ci></bvar>
<bvar><ci>b</ci></bvar>
<condition>
<apply><and/>
<apply><in/><ci>a</ci><reals/></apply>
<apply><in/><ci>b</ci><reals/></apply>
</apply>
</condition>
<apply><eq/>
<apply><times/><ci>a</ci><ci>b</ci></apply>
<apply><times/><ci>b</ci><ci>a</ci></apply>
</apply>
</apply>
</math>