ref="../../IR/Exp/index.html#type-t">IR.Exp.t</a> <span class="arrow">&#45;&gt;</span></span> bool</span></code></div><div class="spec-doc"><p>Check <code>|- e=0</code>. Result <code>false</code> means &quot;don't know&quot;.</p></div></div><div class="odoc-spec"><div class="spec value" id="val-check_equal" class="anchored"><a href="#val-check_equal" class="anchor"></a><code><span><span class="keyword">val</span> check_equal : 
  <span><a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span class="arr