private void btnCreateRandomProposition_Click(object sender, EventArgs e)
{
string proposition = PropositionReader.CreateRandomPropositionString();
tbProposition.Text = proposition;
createAllConHoldersAndTruthtables(proposition);
}
private bool createAllConHoldersAndTruthtables(string proposition)
{
try
{
//CREATING PROPOSITION
Connective con = PropositionReader.ReadPropositionString(proposition);
if (con.IsNormalProposition())
{
conHolder = new ConnectiveHolder(con);
table = new Truthtable(conHolder);
printDisjunctive();
conHolderDisjunctive = new ConnectiveHolder(tbDisjunctiveParse.Text);
tableDisjunctive = new Truthtable(conHolderDisjunctive);
conHolderDisjunctiveSimple = new ConnectiveHolder(tbDisjunctiveSimpleParse.Text);
tableDisjunctiveSimple = new Truthtable(conHolderDisjunctiveSimple);
conHolderNand = conHolder.GetNandHolder();
tableNand = new Truthtable(conHolderNand);
conHolderNandSimple = conHolderDisjunctiveSimple.GetNandHolder();
tableNandSimple = new Truthtable(conHolderNandSimple);
tbInfix.Text = conHolder.GetInfixString();
tbNand.Text = conHolderNand.GetParseString();
tbNandSimple.Text = conHolderNandSimple.GetParseString();
showTableauxTree = false;
//DRAWING AND PRINTING TABLE INFORMATION
printVisualTruthtables(table);
printTablesInformation();
}
else
{
if (!con.AreLocalArgumentsMatching(new List <char>(), new List <char>()))
{
throw new Exception("Local Arguments are mismatching or there are quantifiers with the same Local Argument");
}
conHolder = new ConnectiveHolder(con);
tbInfix.Text = conHolder.GetInfixString();
showTableauxTree = false;
}
Console.WriteLine("Succesfully parsed proposition: " + proposition);
}
catch (NullReferenceException)
{
MessageBox.Show("Parsing failed: please make sure that you wrote a proposition");
Console.WriteLine("Failed to parse proposition: " + proposition);
return(false);
}
catch (Exception ex)
{
MessageBox.Show("Parsing failed: " + ex.Message);
Console.WriteLine("Failed to parse proposition: " + proposition);
return(false);
}
return(true);
}
public TableauxHolder(string Proposition)
{
Connective proposition = PropositionReader.ReadPropositionString(Proposition);
infixString = proposition.GetInfix();
ConnectiveNot notPorposition = new ConnectiveNot();
notPorposition.setLeftConnective(proposition);
TableauxSetElement tse = new TableauxSetElement(notPorposition);
this.startTableaux = new TableauxSet(new List <TableauxSetElement>()
{
tse
});
isNormalProposition = notPorposition.IsNormalProposition();
if (!notPorposition.AreLocalArgumentsMatching(new List <char>(), new List <char>()))
{
throw new Exception("Local Arguments are mismatching or there are quantifiers with the same Local Argument");
}
calculateFreeArguments(notPorposition);
Console.WriteLine("Succesfully parsed proposition: " + Proposition);
Console.WriteLine("Creating tableaux nodes... (In-Progress Feedback: " + TableauxSet.provideFeedback + ")");
this.startTableaux.CreateNextSets(new List <char>(), availableArguments, true); //Can be (!isNormalProposition) OR (true)
this.startTableaux.CalculateIsTautology();
Console.WriteLine("Succesfully created all teableaux nodes");
}
private void printDisjunctive()
{
//GETTING DISJUNCTIVE AND IT'S PARSE
string[] disjunctAndParse = PropositionReader.readDisjunctiveForm(table.Rows);
tbDisjunctive.Text = disjunctAndParse[0];
tbDisjunctiveParse.Text = disjunctAndParse[1];
disjunctAndParse = PropositionReader.readDisjunctiveForm(table.GetSimpleTable());
tbDisjunctiveSimple.Text = disjunctAndParse[0];
tbDisjunctiveSimpleParse.Text = disjunctAndParse[1];
}
public ConnectiveHolder(string proposition)
{
if (proposition != null)
{
Connective con = PropositionReader.ReadPropositionString(proposition);
if (con != null)
{
startConnective = con;
}
else
{
throw new NullReferenceException();
}
}
else
{
throw new NullReferenceException();
}
}
private void timer1_Tick(object sender, EventArgs e)
{
string hashCode;
string proposition;
//GENEARTE ALL TABLES AND CONHOLDERS AND TABLEAUX
proposition = PropositionReader.CreateRandomPropositionString();
tbProposition.Text = proposition;
if (createAllConHoldersAndTruthtables(proposition))
{
printVisualTruthtables(table);
printTablesInformation();
}
CreateTableaux();
//GET HASH CODE OF MAIN TABLE
hashCode = table.GetHashCodeHexadecimal();
//COMPARE HASH CODE WITH OTHER TABLES
if (hashCode != tableDisjunctive.GetHashCodeHexadecimal())
{
testFailed("Disjunctive hashcode does not match", proposition); return;
}
if (hashCode != tableDisjunctiveSimple.GetHashCodeHexadecimal())
{
testFailed("DisjunctiveSimple hashcode does not match", proposition); return;
}
if (hashCode != tableNand.GetHashCodeHexadecimal())
{
testFailed("Nand hashcode does not match", proposition); return;
}
if (hashCode != tableNandSimple.GetHashCodeHexadecimal())
{
testFailed("NandSimple hashcode does not match", proposition); return;
}
//COMPARE TABLEAUX WITH SIMPLE TRUTHTABLE
bool simpleTableResult;
if (dgvSimpleTable.Rows.Count > 2)
{
simpleTableResult = false;
} //contains 1 empty row at the bottom, should ignore!
else
{
if (dgvSimpleTable.Rows.Count == 2)
{
string rowResult = dgvSimpleTable.Rows[0].Cells[dgvSimpleTable.Columns.Count - 1].Value.ToString();
if (rowResult == "1")
{
simpleTableResult = true;
}
else if (rowResult == "0")
{
simpleTableResult = false;
}
else
{
throw new Exception("Unknown character");
}
}
else
{
throw new Exception("Not possible scenario");
}
}
if (simpleTableResult != tabHolder.IsTautology)
{
testFailed("Tautology result from SimpleTable does not match tautology result from Tableaux", proposition); return;
}
testCounter++;
}
//DISPLAY CONNECTIVE TREE STRUCTURE
public void ShowTreeStructure()
{
string path = PropositionReader.CreateStructurePicture(startConnective);
Process.Start(@path);
}