span><span class="type-var">'m</span> <a href="index.html#type-ty">ty</a></span> * <span><span class="type-var">'m</span> <a href="index.html#type-ty">ty</a></span></code></td></tr></table></dt><dt class="spec type" id="type-smt"><a href="#type-smt" class="anchor"></a><code><span class="keyword">type</span> <span>('a, 'v, 'b, 'm) smt</span></code><code> = </code><table class="variant"><tr id="type-smt.DeclareConst" class="anchored"><td class="def constructor"><a href="#type-smt.DeclareConst" class="anchor">