all the elements of <code class="code">l1</code> and <code class="code">l2</code>.
    If several elements compare equal, the elements of <code class="code">l1</code> will be
    before the elements of <code class="code">l2</code>.
    Not tail-recursive (sum of the lengths of the arguments).</p>
</div>
</div>
<h2 id="1_ListsandSequences">Lists and Sequences</h2>
<pre id="VALto_seq">val to_seq : 'a list -&gt; 'a Seq.t</pre><div class="info ">
<div class="info-desc">
<p>Iterate on the list.</p>
</div>
<ul cl