</span> <span>&#45;&gt;</span> <span>rhs:<a href="index.html#type-t">t</a></span> <span>&#45;&gt;</span> bool</code></dt><dt class="spec value" id="val-top"><a href="#val-top" class="anchor"></a><code><span class="keyword">val</span> top : <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-of_unreachable"><a href="#val-of_unreachable" class="anchor"></a><code><span class="keyword">val</span> of_unreachable : <a href="../../../IBase/Location/index.html#type-t">IBase.Location.t</a> <s