n></span> <span><a href="#type-t">t</a> <span class="arrow">&#45;&gt;</span></span> <span class="xref-unresolved">Base</span>.bool</span></code></div></div><div class="odoc-spec"><div class="spec value" id="val-comparator" class="anchored"><a href="#val-comparator" class="anchor"></a><code><span><span class="keyword">val</span> comparator : <span><span>( <a href="#type-t">t</a>, <a href="#type-comparator_witness">comparator_witness</a> )</span> <span class="xref-unresolved">Base</span>.Comparator.t</span></