This is in SML.

Problem 2 (5 points) Write an ML function, called minus int list int list-int list, that takes two non-decreasing integer lists and produces a non-decreasing integer list obtained by removing the elements from the first input list which are also found in the second input list. For erample, 1,2,3] [1,2] minus 1,1,1,2,2 minus1,1,2,3], 1,1,1,2,2) 3