added first-order TPTP version of Nitpick to Isabelle, so that its sources stay in sync with Isabelle and it is easier to install new versions for SystemOnTPTP and CASC -- the tool is called "isabelle nitrox" but is deliberately omitted from the tool list unless the component is explicitly enabled, to avoid clutter
package GraphBrowser;
import java.util.Vector;
class Directory {
TreeNode node;
String name;
Vector collapsed;
public Directory(TreeNode nd,String n,Vector col) {
collapsed=col;
name=n;
node=nd;
}
public TreeNode getNode() { return node; }
public String getName() { return name; }
public Vector getCollapsed() { return collapsed; }
}