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<div class="toctree-wrapper compound">
<ul>
<li class="toctree-l1"><a class="reference internal" href="lists.html">List predicates</a><ul>
<li class="toctree-l2"><a class="reference internal" href="lists.html#defining-a-list-object">Defining a list object</a></li>
<li class="toctree-l2"><a class="reference internal" href="lists.html#defining-a-list-protocol">Defining a list protocol</a></li>
<li class="toctree-l2"><a class="reference internal" href="lists.html#summary">Summary</a></li>
</ul>
</li>
<li 