public override StateFormula existentialNormalForm()
{
StateFormula e_left = left.existentialNormalForm();
StateFormula e_right = right.existentialNormalForm();
return(new SAnd(e_left, e_right));
}
public override StateFormula existentialNormalForm()
{
//EF phi = E (true U phi)
StateFormula true_state = new SBoolean(true);
StateFormula phi = operand.existentialNormalForm();
return(new SEUntil(true_state, phi));
}
public override StateFormula existentialNormalForm()
{
// AX phi = NOT E (X NOT phi)
StateFormula e_operand = operand.existentialNormalForm();
StateFormula not_phi = new SNot(e_operand);
StateFormula exists_next = new SENext(not_phi);
return(new SNot(exists_next));
}
public override StateFormula existentialNormalForm()
{
// AG phi = NOT EG (NOT phi)
StateFormula e_operand = operand.existentialNormalForm();
StateFormula not_phi = new SNot(e_operand);
StateFormula exists_always = new SEAlways(not_phi);
return(new SNot(exists_always));
}
public override StateFormula existentialNormalForm()
{
// AG phi = NOT EF (NOT phi) = NOT E (true U (NOT phi))
StateFormula e_operand = operand.existentialNormalForm();
StateFormula not_phi = new SNot(e_operand);
StateFormula true_state = new SBoolean(true);
StateFormula exists_until = new SEUntil(true_state, not_phi);
return(new SNot(exists_until));
}
public override StateFormula existentialNormalForm()
{
StateFormula e_left = left.existentialNormalForm();
StateFormula e_right = right.existentialNormalForm();
// a OR b = NOT ((NOT a) AND (NOT b))
e_left = new SNot(e_left);
e_right = new SNot(e_right);
StateFormula and = new SAnd(e_left, e_right);
return(new SNot(and));
}
public override StateFormula existentialNormalForm()
{
StateFormula e_operand = operand.existentialNormalForm();
return(new SEAlways(e_operand));
}
public override StateFormula existentialNormalForm()
{
StateFormula e_state = state.existentialNormalForm();
return(new SNot(e_state));
}