f <code>y.isSupersetOf(x)</code></li><li><code>x.isStrictSupersetOf(y)</code> iff <code>x.isSupersetOf(y) &amp;&amp; x != y</code></li><li><code>x.isStrictSubsetOf(y)</code> iff <code>x.isSubsetOf(y) &amp;&amp; x != y</code></li></ul></li></ul>
</div>

<table class="standard">
<tr>
<th id="inheritance">Inheritance</th>
<td>
<code class="inherits">ArrayLiteralConvertible, Equatable</code>
<span class="viz"><a href="hierarchy/">View Protocol Hierarchy &rarr;</a></span>
</td>
</tr>

<tr>
<th id="aliases">Assoc