code></div><dl><dt class="spec value" id="val-non_zero_ring"><a href="#val-non_zero_ring" class="anchor"></a><code><span class="keyword">val</span> non_zero_ring : bool</code></dt><dt class="spec value" id="val-integral_domain"><a href="#val-integral_domain" class="anchor"></a><code><span class="keyword">val</span> integral_domain : <a href="argument-1-R/index.html#type-t">R.t</a> <span>&#45;&gt;</span> <a href="argument-1-R/index.html#type-t">R.t</a> <span>&#45;&gt;</span> bool</code></dt><dt class="spec v