fier_kind"><span class="modifier"></span> <span class="kind">val</span></span> <span class="symbol"><span class="name">subtree</span><span class="result">: <a href="NlpProse$$ProseTree.html" name="provingground.translation.NlpProse.ProseTree" id="provingground.translation.NlpProse.ProseTree" class="extype">ProseTree</a></span></span></li><li class="indented0 " name="scala.AnyRef#synchronized" group="Ungrouped" fullComment="yes" data-isabs="false" visbl="pub"><a id="synchronized[T0](x$1:=&gt;T0):T0"></a><a i