pan 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> * <span class="type-var">'a</span></code></td></tr><tr id="type-exp.Binop" class="anchored"><td class="def constructor"><a href="#type-exp.Binop" class="anchor"></a><code>| </code><code><span class="constructor">Binop</span> <span class="keyword">of</span> <span><span class="type-var">'m</span> <a href="index.html#type-binop">binop</a></span> * <span><span