nerator</span><span class="special">&lt;&gt;</span></code>
            the type <code class="computeroutput"><span class="identifier">Num</span></code> must have
            defined:
          </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
                comparison operators for: <code class="computeroutput"><span class="special">&lt;</span></code>,
                <code class="computeroutput"><span class="special">&lt;=</span></code>, <code c