><div class="odoc-spec"><div class="spec value anchored" id="val-product"><a href="#val-product" class="anchor"></a><code><span><span class="keyword">val</span> product : <span><a href="argument-1-S1/index.html#type-t">S1.t</a> <span class="arrow">&#45;&gt;</span></span> <span><a href="argument-2-S2/index.html#type-t">S2.t</a> <span class="arrow">&#45;&gt;</span></span> <a href="#type-t">t</a></span></code></div></div></div></body></html>