   <th>Requirements</th>
      </tr>

      <tr>
        <td><code><a name=
        "less_than_comparable1">less_than_comparable&lt;T&gt;</a></code><br>
         <code>less_than_comparable1&lt;T&gt;</code></td>

        <td><code>bool operator&gt;(const T&amp;, const T&amp;)</code><br>
         <code>bool operator&lt;=(const T&amp;, const T&amp;)</code><br>
         <code>bool operator&gt;=(const T&amp;, const T&amp;)</code></td>

        <td><code>t &lt; t1</code>.<br>
         Return convertible to <code>