public virtual Object visitNotSentence(UnarySentence ns, Object arg)
{
Hashtable s =(Hashtable)arg;
return new SetOps().union(s,(Hashtable)ns.getNegated().accept(this,arg));
}
public Object visitNotSentence(UnarySentence fs, Object arg)
{
Object negatedValue = fs.getNegated().accept(this,null);
if (negatedValue != null)
{
return (!((bool) negatedValue));
}
else
{
return null;
}
}
