dt><dd><p>Extended interface for equatable polymorphic unary types.</p></dd></dl><dl><dt class="spec module" id="module-Extend"><a href="#module-Extend" class="anchor"></a><code><span class="keyword">module</span> <a href="Extend/index.html">Extend</a> : <span class="keyword">functor</span> (<a href="Extend/argument-1-Base/index.html">Base</a> : <a href="../index.html#module-type-Equal1">Equal1</a>) <span>&#45;&gt;</span> <a href="index.html#module-type-Extension">Extension</a> <span class="keyword">with</s