class="returnvalue">t</code>
       </p></td></tr><tr><td class="func_table_entry"><p class="func_signature">
        <a id="id-1.5.8.26.11.2.2.7.1.1.1" class="indexterm"></a>
        <code class="function">upper_inf</code> ( <code class="type">anymultirange</code> )
        → <code class="returnvalue">boolean</code>
       </p>
       <p>
        Does the multirange have no upper bound?  (An upper bound of
        <code class="literal">Infinity</code> returns false.)
       </p>
       <p>
        <code 