/// <summary>
/// // Used for δ(Delta)-rule
/// </summary>
/// <param name="component"></param>
/// <param name="processed"></param>
/// <param name="parent"></param>
public TableauxNode(Component component, Component processed, TableauxNode parent, char variable)
{
this.Components = new List <Component>();
this.ActiveVariables = new List <char>()
{
variable
};
this.Rule_Type = RuleType.RuleDelta;
this.ParentNode = parent;
parent.Branched = false;
parent.LeftNode = this;
component.Belongs = this;
if (parent.ActiveVariables?.Count != 0)
{
parent.ActiveVariables?.ForEach(x => this.ActiveVariables.Add(x));
}
parent.Components.ForEach(node =>
{
if (node != processed)
{
var newNode = BinaryTree.CloneNode(node, BinaryTree.Object);
newNode.Belongs = this;
Components.Add(newNode);
}
});
Components.Add(component);
Components.Sort(new ComponentComparer());
}
/// <summary>
/// Used for non-branched a-rules & gamma-rule
/// </summary>
/// <param name="components" />
/// <param name="processed" />
/// <param name="parent" />
/// <param name="ruleType">Alpha or Gamma</param>
public TableauxNode(List <Component> components, Component processed,
TableauxNode parent, RuleType ruleType)
{
this.Components = new List <Component>();
this.ActiveVariables = new List <char>();
this.Rule_Type = ruleType;
this.ParentNode = parent;
parent.Branched = false;
parent.LeftNode = this;
parent.Components.ForEach(component =>
{
if (component != processed)
{
component.Belongs = this;
this.Components.Add(component);
}
});
components.ForEach(x =>
{
x.Belongs = this;
this.Components.Add(x);
});
if (parent.ActiveVariables?.Count != 0 && parent.ActiveVariables != null)
{
parent.ActiveVariables?.ForEach(x => this.ActiveVariables?.Add(x));
}
Components.Sort(new ComponentComparer());
}
/// <summary>
/// // Used for branched B-rules
/// </summary>
/// <param name="node"></param>
/// <param name="processed"></param>
/// <param name="parent"></param>
public TableauxNode(Component node, Component processed, TableauxNode parent, RuleType ruleType)
{
this.Components = new List <Component>();
this.ActiveVariables = new List <char>();
this.Rule_Type = ruleType;
node.Belongs = this;
parent.Components.ForEach(component =>
{
if (component != processed)
{
var newNode = BinaryTree.CloneNode(component, BinaryTree.Object);
newNode.Belongs = this;
Components.Add(newNode);
}
});
Components.Add(node);
parent.Branched = (ruleType == RuleType.RuleBeta);
this.ParentNode = parent;
if (parent.LeftNode == null)
{
parent.LeftNode = this;
}
else if (parent.RightNode == null && ruleType == RuleType.RuleBeta)
{
parent.RightNode = this;
}
if (parent.ActiveVariables?.Count != 0)
{
parent.ActiveVariables?.ForEach(x => this.ActiveVariables?.Add(x));
}
Components.Sort(new ComponentComparer());
}
//Constructors
public TableauxNode(Component root, TableauxNode parent = null)
{
Components = new List <Component>();
this.Rule_Type = RuleType.RuleDefault;
this.ParentNode = parent;
this.Branched = false;
root.Belongs = this;
Components.Add(root);
if (parent != null)
{
parent.LeftNode ??= this;
}
}