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Peter Linz Edition 4 Exercise 5.1 Question 17 (Page No. 134)
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Show that the complement of the language $L =$ {$a^nb^mc^k : k = n + m$} is context-free.
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Peter Linz Edition 4 Exercise 5.1 Question 19 (Page No. 134)
Show a derivation tree for the string $aabbbb$ with the grammar $S\rightarrow AB|\lambda,$ $A\rightarrow aB,$ $B\rightarrow Sb.$ Give a verbal description of the language generated by this grammar.
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Peter Linz Edition 4 Exercise 5.1 Question 18 (Page No. 134)
Show that the language $L=$ {$w_1cw_2:w_1,w_2∈$ {$a,b$}$^+,w_1\neq w_2^R$}, with $Σ =$ {$a,b,c$},is context-free.
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Peter Linz Edition 4 Exercise 5.1 Question 16 (Page No. 134)
Show that the complement of the language $L=$ {$ww^R:w∈$ {$a,b$}$^*$} is context-free.
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Apr 14, 2019
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Peter Linz Edition 4 Exercise 5.1 Question 15 (Page No. 134)
Show that the following language is context-free. $L=$ {$uvwv^R:u,v,w∈$ {$a,b$}$^+,|u|=|w|=2$}.
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