 <code class="code"><span class="constructor">None</span></code> if the list is too short.
    Raise <code class="code"><span class="constructor">Invalid_argument</span>&nbsp;<span class="string">"List.nth"</span></code> if <code class="code">n</code> is negative.</p>
</div>
<ul class="info-attributes">
<li><b>Since</b> 4.05</li>
</ul>
</div>

<pre><span id="VALrev"><span class="keyword">val</span> rev</span> : <code class="type">'a list -&gt; 'a list</code></pre><div class="info ">
<div class="info-desc">
