tr><tr id="type-smt_ans.Exp" class="anchored"><td class="def constructor"><a href="#type-smt_ans.Exp" class="anchor"></a><code>| </code><code><span class="constructor">Exp</span> <span class="keyword">of</span> <span><span>(<span class="type-var">'a</span>, <span class="type-var">'v</span>, <span class="type-var">'b</span>, <span class="type-var">'m</span>)</span> <a href="index.html#type-exp">exp</a></span></code></td></tr></table></dt></dl><aside><p>auxiliary functions on the new list types</p></aside>