n> ff_f : <span><a href="../../A/index.html#type-elt">A.elt</a> <span class="arrow">&#45;&gt;</span></span> <a href="../../index.html#type-t">t</a></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-ff_arr"><a href="#val-ff_arr" class="anchor"></a><code><span><span class="keyword">val</span> ff_arr : <span><a href="../../A/index.html#type-arr">A.arr</a> <span class="arrow">&#45;&gt;</span></span> <a href="../../index.html#type-t">t</a></span></code></div></div><div clas