public Conjunction(Proposition left, Proposition right)
{
LeftOperand = left;
RightOperand = right;
}
public Implication(Proposition left, Proposition right)
{
LeftOperand = left;
RightOperand = right;
}
public Universal(Proposition predicate, List <Variable> boundVariables) : base(predicate, boundVariables)
{
}
public Existential(Proposition predicate, List <Variable> boundVariables) : base(predicate, boundVariables)
{
}
protected Quantifier(Proposition predicate, List <Variable> boundVariables)
{
Predicate = predicate;
BoundVariables = boundVariables;
}
private void ButtonRead_Click(object sender, EventArgs e)
{
try {
// Update form
textBoxInfix.Text = "";
textBoxVariables.Text = "";
groupBoxPropositions.Enabled = false;
listBoxDisjuncNormal.Items.Clear();
listBoxDisjuncSimple.Items.Clear();
listBoxNand.Items.Clear();
textBoxHexCode.Text = "";
truthTable.Columns.Clear();
truthTable.Rows.Clear();
simplifiedTruthTable.Columns.Clear();
simplifiedTruthTable.Rows.Clear();
groupBoxPredicates.Enabled = false;
listBoxBoundVariables.Items.Clear();
listBoxUnboundVariables.Items.Clear();
textBoxReplaceVariable.Text = "";
buttonVisualize.Enabled = true;
buttonSTableaux.Enabled = true;
buttonClear.Enabled = true;
// Create proposition from user input
proposition = Parser.Parse(input.Text);
// Show infix formula
textBoxInfix.Text = proposition.ToString();
// Show variables
proposition.Variables.Sort();
foreach (var variable in proposition.Variables)
{
textBoxVariables.Text += variable + " ";
}
if (!proposition.IsPredicate)
{
// Enable propositions panel
groupBoxPropositions.Enabled = true;
// Show truth table
var table = proposition.CreateTruthTable();
foreach (var variable in table.Variables)
{
truthTable.Columns.Add(variable.ToString(), variable.ToString());
}
truthTable.Columns.Add(proposition.ToString(), proposition.ToString());
foreach (var row in table.Data)
{
truthTable.Rows.Add(row);
}
foreach (DataGridViewColumn col in truthTable.Columns)
{
col.AutoSizeMode = DataGridViewAutoSizeColumnMode.DisplayedCells;
col.SortMode = DataGridViewColumnSortMode.NotSortable;
}
truthTable.Columns[truthTable.ColumnCount - 1].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
// Show simplified truth table
var smpfdTable = table.Simplify();
foreach (var variable in smpfdTable.Variables)
{
simplifiedTruthTable.Columns.Add(variable.ToString(), variable.ToString());
}
simplifiedTruthTable.Columns.Add(proposition.ToString(), proposition.ToString());
foreach (var row in smpfdTable.Data)
{
simplifiedTruthTable.Rows.Add(row);
}
foreach (DataGridViewColumn col in simplifiedTruthTable.Columns)
{
col.AutoSizeMode = DataGridViewAutoSizeColumnMode.DisplayedCells;
col.SortMode = DataGridViewColumnSortMode.NotSortable;
}
simplifiedTruthTable.Columns[simplifiedTruthTable.ColumnCount - 1].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
// Show disjunctive normal formula
var disjuncNormal = table.CreateDisjunctiveFormula();
if (disjuncNormal != null)
{
listBoxDisjuncNormal.Items.Add(disjuncNormal);
}
// Show disjunctive simple formula
var disjuncSimple = smpfdTable.CreateDisjunctiveFormula();
if (disjuncSimple != null)
{
listBoxDisjuncSimple.Items.Add(disjuncSimple);
}
// Show NAND formula
var nand = proposition.Nandify();
listBoxNand.Items.Add(nand);
// Generate hex code
string result = "";
for (int i = table.Data.Count - 1; i >= 0; i--)
{
result += table.Data[i][table.Data[0].Length - 1];
}
textBoxHexCode.Text = Convert.ToInt32(result, 2).ToString("X");
}
else
{
// Enable predicates panel
groupBoxPredicates.Enabled = true;
// Show bound variables
Parser.BoundVariables.Sort();
foreach (var variable in Parser.BoundVariables)
{
listBoxBoundVariables.Items.Add(variable);
}
// Show unbound variables
var unboundVariables = proposition.Variables.Except(Parser.BoundVariables).ToList();
unboundVariables.Sort();
foreach (var variable in unboundVariables)
{
listBoxUnboundVariables.Items.Add(variable);
}
}
}
catch (Exception ex) {
MessageBox.Show(ex.ToString());
ResetForm();
}
}
public NotAnd(Proposition left, Proposition right)
{
LeftOperand = left;
RightOperand = right;
}
public Negation(Proposition operand)
{
Operand = operand;
}
