code> or <code>q2</code> are not states of <code>s</code></p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-add_itransition"><a href="#val-add_itransition" class="anchor"></a><code><span><span class="keyword">val</span> add_itransition : <span><span>(<a href="#type-symbol">symbol</a> * <a href="#type-state">state</a>)</span> <span class="arrow">&#45;&gt;</span></span> <span><a href="#type-t">t</a> <span class="arrow">&#45;&gt;</span></span> <a href="#type-t">t</a></span></code><