 class="type-var">'a</span> list</span></code></dt><dt class="spec value" id="val-sort_uniq"><a href="#val-sort_uniq" class="anchor"></a><code><span class="keyword">val</span> sort_uniq : <span>(<span class="type-var">'a</span> <span>&#45;&gt;</span> <span class="type-var">'a</span> <span>&#45;&gt;</span> int)</span> <span>&#45;&gt;</span> <span><span class="type-var">'a</span> list</span> <span>&#45;&gt;</span> <span><span class="type-var">'a</span> list</span></code></dt><dt class="spec value" id="val-mer