Finally, the result, whichis X, would be printed. But X would not be currently instantiated, so the systemwould indicate that. Generally, uninstantiated variables are printed in the formof a string of digits preceded by an underscore. So, the fact that Prolog’s not isnot equivalent to a logical NOT can be, at the very least, misleading
đang được dịch, vui lòng đợi..
