es &amp;
      Equivalence</a></span></dt>
<dt><span class="section"><a href="heap/concepts.html#heap.concepts.merge">Merging Priority Queues</a></span></dt>
<dt><span class="section"><a href="heap/concepts.html#heap.concepts.mutability">Mutability</a></span></dt>
<dt><span class="section"><a href="heap/concepts.html#heap.concepts.stability">Stability</a></span></dt>
</dl></dd>
<dt><span class="section"><a href="heap/data_structures.html">Data Structures</a></span></dt>
<dd><dl><dt><span class="section"><a 