ns the set of states which can reached when a sequence of symbols <code>ss</code> is given to <code>a</code>, starting at state <code>q</code></p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-trans_hat'"><a href="#val-trans_hat'" class="anchor"></a><code><span><span class="keyword">val</span> trans_hat' : <span><a href="#type-t">t</a> <span class="arrow">&#45;&gt;</span></span> <span><a href="#type-state">state</a> <span class="arrow">&#45;&gt;</span></span> <span><span><a href