"keyword">val</span> (/$) : <a href="index.html#type-real_bound">real_bound</a> <span>&#45;&gt;</span> <a href="index.html#type-real_bound">real_bound</a> <span>&#45;&gt;</span> <a href="index.html#type-kind">kind</a> * <a href="E/B/index.html#type-t">B.t</a></code></dt><dt class="spec value" id="val-half_space"><a href="#val-half_space" class="anchor"></a><code><span class="keyword">val</span> half_space : <span>(<a href="index.html#type-kind">kind</a> * <a href="E/B/index.html#type-t">B.t</a>)</span> <spa