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Problem 8 You can assume that L = {abe: n > 0} is not context free. Prove the following: Show that L-ab: n20 is not context free Show that L = {w E {a,b,c,d)* : na(w) = nb(w)-ne(w) = nd(w)) is not context free Note that na(w) means the number of as in w .

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tai or folk: 2: aaaaaaa bbbも6ccccc4: Henu, by pumpng lmo s net Eん {@yb,c,d,f* ; naCw): nb(W)s hdCr take a s,ing 란 EL 2abacd alb aledtdb for all kk oxky el u v Hene ty pemping lomma given L

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Problem 8 You can assume that L = {a"be": n > 0} is not context free....
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