bool Formula::isAlpha()
{
if (this->isCompound() && this->cntv == '&') {
return true;
}
else if (this->isNegated()) {
Formula *next = this->getNext();
if (next->isCompound() && (next->getCntv()=='|' || next->getCntv()=='>')) {
return true;
}
else return false;
}
else return false;
}
/*
* Special Copy Constructor
* Only pointers to free vars are retained
* Used for copying gamma formulas
*/
Formula::Formula(Formula &f)
{
this->type = f.getType();
this->cntv = f.getCntv();
if (f.isAtomic()) {
TermList *list = new TermList();
this->copy(f.getPredicate()->getTermList(), list);
this->predicate = new Predicate(f.getPredicate()->getName(), list);
}
else if (f.isNegated()) {
this->nextFormula = new Formula(*f.getNext());
}
else if (f.isQuantified()) {
this->qVar = new Term(*f.getQVar());
this->nextFormula = new Formula(*f.getNext());
}
else if (f.isCompound()) {
this->formula1 = new Formula(*f.getLeft());
this->formula2 = new Formula(*f.getRight());
}
}
