de class="type">('a -&gt; bool) -&gt; 'a list -&gt; bool</code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">exists&nbsp;p&nbsp;[a1;&nbsp;...;&nbsp;an]</code> checks if at least one element of
   the list satisfies the predicate <code class="code">p</code>. That is, it returns
   <code class="code">(p&nbsp;a1)&nbsp;<span class="keywordsign">||</span>&nbsp;(p&nbsp;a2)&nbsp;<span class="keywordsign">||</span>&nbsp;...&nbsp;<span class="keywordsign">||</span>&nbsp;(p&nbsp;an)</code>.<