1 votes 1 votes If L1 is CSL and L2 is CFL, then which of the following is correct ? A.L1' - L2 is CSL always B. L1 - L2' is CSL always C. L1 intersection Regular is Regular always D. L1.L2 is CSL but not CFL Theory of Computation theory-of-computation context-free-language closure-property + – Na462 asked Sep 9, 2018 Na462 1.9k views answer comment Share Follow See all 16 Comments See all 16 16 Comments reply Show 13 previous comments `JEET commented Nov 10, 2019 reply Follow Share So, what's the correct one now? 0 votes 0 votes Swapnil Naik commented Nov 10, 2019 reply Follow Share here it seems both A and B are correct, C and D are incorrect. 0 votes 0 votes `JEET commented Nov 10, 2019 reply Follow Share Yes. 0 votes 0 votes Please log in or register to add a comment.