public SemanticTableauxParser(IAsciiBasePropositionalOperator baseOperator)
{
var not = new NotPropositionalOperator(baseOperator.GetArgumentsManager());
not.Instantiate(new [] { baseOperator.ToAndOrNot() });
Step = new TableuaxStep(not);
HandleSteps();
}
private void HandleQuantifierOperators()
{
var list = operators.Where(x => !(x is AbstractQuantifierOperator) && !(x is NotPropositionalOperator && x.GetChilds()[0] is AbstractQuantifierOperator)).ToList();
foreach (var baseOperator in operators.Where(x => !list.Contains(x)).OrderBy(CalcScore))
{
IAsciiBasePropositionalOperator work;
if (baseOperator is NotPropositionalOperator)
{
var temp = baseOperator.GetChilds()[0].Negate();
work = temp;
}
else
{
work = baseOperator;
}
operatorsMadeIntoChilds.Add(work);
operatorsMadeIntoChilds.Add(baseOperator);
if (!list.Contains(work))
{
var q = work as AbstractQuantifierOperator;
if (work is UniversalQuantifierOperator)
{
list.Add(work);
foreach (var extensionalVariable in ExtensionalVariables)
{
var clone = StringParser.CloneOperator(work.GetChilds()[0]);
clone.ChangeArgument(q.GetVariable(), extensionalVariable);
if (!list.Contains(clone))
{
list.Add(clone);
}
}
}
else
{
var clone = StringParser.CloneOperator(work.GetChilds()[0]);
var variable = clone.GetArgumentsManager().GetUnusedOperator();
ExtensionalVariables.Add(variable);
clone.ChangeArgument(q.GetVariable(), variable);
if (!list.Contains(clone))
{
list.Add(clone);
}
}
}
}
var child = new TableuaxStep(list, ExtensionalVariables);
childs.Add(child);
}
private bool AddOrChild(IAsciiBasePropositionalOperator baseOperator, IAsciiBasePropositionalOperator workChild)
{
List <IAsciiBasePropositionalOperator> list1 = operators.Where(x => x != baseOperator).ToList();
if (!list1.Contains(workChild))
{
list1.Add(workChild);
}
var child1 = new TableuaxStep(list1, ExtensionalVariables);
childs.Add(child1);
return(true);
}
private void AddChild(IAsciiBasePropositionalOperator baseOperator)
{
//Console.WriteLine("Child: "+ baseOperator.ToLogicString());
IAsciiBasePropositionalOperator work;
if (baseOperator is NotPropositionalOperator)
{
var temp = baseOperator.GetChilds()[0].Negate();
work = temp;
}
else
{
work = baseOperator;
}
var stop = operatorsMadeIntoChilds.Contains(work) || operatorsMadeIntoChilds.Contains(baseOperator);
operatorsMadeIntoChilds.Add(baseOperator);
if (stop)
{
Console.WriteLine("STOP!");
return;
}
operatorsMadeIntoChilds.Add(work);
if (work is OrPropositionalOperator)
{
AddOrChild(baseOperator, work.GetChilds()[0]);
if (!work.GetChilds()[0].Equals(work.GetChilds()[1]))
{
AddOrChild(baseOperator, work.GetChilds()[1]);
}
return;
}
if (work is AndPropositionalOperator)
{
List <IAsciiBasePropositionalOperator> list = operators.Where(x => x != baseOperator).ToList();
var first = work.GetChilds()[0];
var second = work.GetChilds()[1];
if (!list.Contains(first))
{
list.Add(first);
}
if (!list.Contains(second))
{
list.Add(second);
}
var child = new TableuaxStep(list, ExtensionalVariables);
childs.Add(child);
return;
}
if (work is AbstractConstantPropositionalOperator)
{
List <IAsciiBasePropositionalOperator> list = operators.Where(x => x != baseOperator).ToList();
if (!list.Contains(work))
{
list.Add(work);
}
var child = new TableuaxStep(list, ExtensionalVariables);
childs.Add(child);
return;
}
if (work is AbstractQuantifierOperator)
{
HandleQuantifierOperators();
return;
}
throw new NotImplementedException();
}
