alue/index.html#type-t">Value.t</a></span></code></div><div class="spec-doc"><p><code>eval_expr env e</code> should return the value obtained by evaluating expression <code>e</code> in environment <code>env</code>. Should raise <a href="#exception-Illegal_expr"><code>Illegal_expr</code></a> in case of failure.</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-eval_bool"><a href="#val-eval_bool" class="anchor"></a><code><span><span class="keyword">val</span> eval_bool : <span><a 