deleteAll (X, L1, L2):L1 When all the X's in the list are deleted, the newly created list is L2. Write the Prolog rules that will make this inference.

sample output:

?- deleteAll(4,[1,4,4,9,4,6,3,1,4,7),L). L = [1, 9, 6, 3, 1, 7]