 <span>&#45;&gt;</span> <a href="index.html#type-kind">kind</a></code></dt><dt class="spec value" id="val-bound_arith"><a href="#val-bound_arith" class="anchor"></a><code><span class="keyword">val</span> bound_arith : <span>(<a href="index.html#type-bound">bound</a> <span>&#45;&gt;</span> <a href="index.html#type-bound">bound</a> <span>&#45;&gt;</span> <span class="type-var">'a</span>)</span> <span>&#45;&gt;</span> <a href="index.html#type-real_bound">real_bound</a> <span>&#45;&gt;</span> <a href="index.htm