ref="#type-elt">elt</a> <span class="arrow">&#45;&gt;</span></span> <span><a href="#type-arr">arr</a> <span class="arrow">&#45;&gt;</span></span> <a href="#type-arr">arr</a></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-pow"><a href="#val-pow" class="anchor"></a><code><span><span class="keyword">val</span> pow : <span><a href="#type-arr">arr</a> <span class="arrow">&#45;&gt;</span></span> <span><a href="#type-arr">arr</a> <span class="arrow">&#45;&gt;</span></span>