<span>&#45;&gt;</span> <span><span class="type-var">'d</span> <a href="index.html#type-arbitrary">arbitrary</a></span> <span>&#45;&gt;</span> <span>(<span class="type-var">'a</span> <span>&#45;&gt;</span> <span class="type-var">'b</span> <span>&#45;&gt;</span> <span class="type-var">'c</span> <span>&#45;&gt;</span> <span class="type-var">'d</span> <span>&#45;&gt;</span> bool)</span> <span>&#45;&gt;</span> <a href="index.html#type-t">t</a></code></dt></dl></div></body></html>