="identifier">sym</span></code>, <code class="computeroutput"><span class="identifier">sym2</span></code></span></dt>
<dd><p>
                  <code class="computeroutput"><span class="identifier">symbols</span></code> objects.
                </p></dd>
<dt><span class="term"><code class="computeroutput"><span class="identifier">sseq</span></code></span></dt>
<dd><p>
                  An <a href="https://en.wikipedia.org/wiki/Standard_Template_Library" target="_top">STL</a>
                  container of s