ord">val</span> bool : <span><span class="xref-unresolved">Base</span>.bool <span class="arrow">&#45;&gt;</span></span> <a href="#type-t">t</a></span></code></div><div class="spec-doc"><p>Create a boolean constant term.</p></div></div><div class="odoc-spec"><div class="spec value" id="val-(~!)" class="anchored"><a href="#val-(~!)" class="anchor"></a><code><span><span class="keyword">val</span> (~!) : <span><a href="../index.html#type-term">term</a> <span class="arrow">&#45;&gt;</span></span> <a href="#type-