<p>
          <span class="bold"><strong>Semantics</strong></span>: Returns <code class="computeroutput"><span class="keyword">true</span></code>
          if and only if <code class="computeroutput"><a class="link" href="element_access.html" title="Element access"><code class="computeroutput"><span class="identifier">get</span></code></a><span class="special">&lt;</span><span class="identifier">i</span><span class="special">&gt;(</span><span class="identifier">lhs</span><span class="special">)</span> <span