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Peter Linz Edition 5 Exercise 8.1 Question 7(h) (Page No. 212)
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Show that the following languages on $\Sigma = \{a,b,c\}$ are not context-free.
$L = \{w\in\{a,b,c\}^*:n_a(w)+n_b(w)=2n_c(w),n_a(w) = n_b(w)\}$.
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Peter Linz Edition 5 Exercise 8.1 Question 7(k) (Page No. 212)
Show that the following languages on $\Sigma = \{a,b,c\}$ are not context-free $L = \{a^nb^m: \text{n is prime and m is not prime}\}$.
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Peter Linz Edition 5 Exercise 8.1 Question 7(j) (Page No. 212)
Show that the following languages on $\Sigma = \{a,b,c\}$ are not context-free $L = \{a^nb^m:\text{n is prime or m is prime}\}$.
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Peter Linz Edition 5 Exercise 8.1 Question 7(i) (Page No. 212)
Show that the following languages on $\Sigma = \{a,b,c\}$ are not context-free $L = \{a^nb^m: \text{n and m are both prime}\}$.
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Peter Linz Edition 5 Exercise 8.1 Question 7(g) (Page No. 212)
Show that the following languages on $\Sigma = \{a,b,c\}$ are not context-free. $L=\{w:n_a(w)/n_b(w) = n_c(w)\}$.
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