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Michael Sipser Edition 3 Exercise 2 Question 51 (Page No. 159)
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Show that every DCFG is an unambiguous CFG.
michaelsipser
theoryofcomputation
contextfreegrammars
ambiguous
proof
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Oct 13, 2019
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Theory of Computation
by
Lakshman Patel RJIT

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Michael Sipser Edition 3 Exercise 2 Question 46 (Page No. 158)
Consider the following CFG $G:$ $S \rightarrow SS \mid T$ $T \rightarrow aT b \mid ab$ Describe $L(G)$ and show that $G$ is ambiguous. Give an unambiguous grammar $H$ where $L(H) = L(G)$ and sketch a proof that $H$ is unambiguous.
asked
Oct 13, 2019
in
Theory of Computation
by
Lakshman Patel RJIT

48
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michaelsipser
theoryofcomputation
contextfreegrammars
ambiguous
proof
0
votes
0
answers
2
Michael Sipser Edition 3 Exercise 2 Question 52 (Page No. 159)
Show that every DCFG generates a prefixfree language.
asked
Oct 13, 2019
in
Theory of Computation
by
Lakshman Patel RJIT

14
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michaelsipser
theoryofcomputation
contextfreegrammars
prefixfreelanguage
proof
0
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0
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3
Michael Sipser Edition 3 Exercise 5 Question 2 (Page No. 239)
Show that $EQ_{CFG}$ is coTuringrecognizable.
asked
Oct 18, 2019
in
Theory of Computation
by
Lakshman Patel RJIT

23
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michaelsipser
theoryofcomputation
contextfreegrammars
turingrecognizablelanguages
proof
+1
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1
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4
Michael Sipser Edition 3 Exercise 2 Question 26 (Page No. 157)
Show that if $G$ is a $CFG$ in Chomsky normal form$,$ then for any string $w\in L(G)$ of length $n\geq 1,$ exactly $2n − 1$ steps are required for any derivation of $w.$
asked
May 4, 2019
in
Theory of Computation
by
Lakshman Patel RJIT

38
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michaelsipser
theoryofcomputation
contextfreegrammars
cnf
proof
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