e-var">'b</span> list</span> <span>&#45;&gt;</span> int</code></dt><dt class="spec value" id="val-compare_length_with"><a href="#val-compare_length_with" class="anchor"></a><code><span class="keyword">val</span> compare_length_with : <span><span class="type-var">'a</span> list</span> <span>&#45;&gt;</span> int <span>&#45;&gt;</span> int</code></dt><dt class="spec value" id="val-cons"><a href="#val-cons" class="anchor"></a><code><span class="keyword">val</span> cons : <span class="type-var">'a</span> <span>&