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Peter Linz Edition 4 Exercise 7.4 Question 1 (Page No. 204)
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Show that the grammar $S_0\rightarrow aSbS,S\rightarrow aSbS|\lambda$ is an LL grammar and that it is equivalent to the grammar $S\rightarrow SS|aSb|ab$.
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Peter Linz Edition 4 Exercise 7.4 Question 9 (Page No. 204)
Give LL grammars for the following languages, assuming $Σ =$ {$a,b, c$}. (i) $L=$ {$a^nb^mc^{n+m}:n\geq0,m\geq0$} . (ii) $L=$ {$a^{n+2}b^mc^{n+m}:n\geq0,m\geq0$} . (iii) $L=$ {$a^nb^{n+2}c^{m}:n\geq0,m\gt1$} . (iv) $L=$ {$w:n_a(w)\lt n_b(w)$} . (v) $L=$ {$w:n_a(w)+n_b(w)\neq n_c(w)$} .
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Peter Linz Edition 4 Exercise 7.4 Question 8 (Page No. 204)
Let G be a context-free grammar in Greibach normal form. Describe an algorithm which, for any given k, determines whether or not G is an LL (k) grammar.
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Peter Linz Edition 4 Exercise 7.4 Question 6 (Page No. 204)
Show that if G is an LL (k) grammar, then L (G) is a deterministic context-free language.
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Peter Linz Edition 4 Exercise 7.4 Question 5 (Page No. 204)
Show that any LL grammar is unambiguous.
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