PLEASE SOMEONE EXPLAIN :- THEOREM1 :- THE FAMILY OF CONTEXT FREE LANGUAGES IS NOT CLOSED UNDER INTERSECTION AND COMPLEMENTAION. THEOREM2:- LET L1 BE A CONTEXT FREE LANGUAGES AND L2 BE REGULAR LANGUAGE. THEN L1 INTERSECTION L2 IS CONTEXT FREE . CONFUSION :-EVERY REGULAR LANGUAGE IS CONTEXT FREE AS REGULAR LANGUAGE IS ACCEPTED BY PDA . THEN HOW BOTH THEOREM CAN DISTINCT.
