type-var">'a</span> <a href="../argument-1-A/index.html#type-t">A.t</a></span> <span>&#45;&gt;</span> <span><span class="type-var">'b</span> <a href="../argument-1-A/index.html#type-t">A.t</a></span> <span>&#45;&gt;</span> <span><span class="type-var">'c</span> <a href="../argument-1-A/index.html#type-t">A.t</a></span> <span>&#45;&gt;</span> <span><span class="type-var">'d</span> <a href="../argument-1-A/index.html#type-t">A.t</a></span></code></dt><dt class="spec value" id="val-lift4"><a href="#val-lift4" 