ref="B/index.html#type-t">B.t</a> <span>&#45;&gt;</span> <a href="B/index.html#type-t">B.t</a> <span>&#45;&gt;</span> <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-of_bound"><a href="#val-of_bound" class="anchor"></a><code><span class="keyword">val</span> of_bound : <a href="B/index.html#type-t">B.t</a> <span>&#45;&gt;</span> <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-zero"><a href="#val-zero" class="anchor"></a><code><span class="keyword">val</