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Ullman (TOC) Edition 3 Exercise 4.3 Question 4 (Page No. 155)

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Ullman (TOC) Edition 3 Exercise 4.3 Question 5 (Page No. 155)
Give an algorithm to tell for two regular languages $L_{1}$ and $L_{2}$ over the same alphabet $\sum,$ whether there is any string in $\sum^{*}$ that is in neither $L_{1}$ nor $L_{2}.$
Give an algorithm to tell for two regular languages $L_{1}$ and $L_{2}$ over the same alphabet $\sum,$ whether there is any string in $\sum^{*}$ that is in neither $L_{1}...
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Ullman (TOC) Edition 3 Exercise 4.3 Question 3 (Page No. 155)
Suppose $L$ is a regular language with alphabet $\sum.$ Give an algorithm to tell whether $L=\sum^{*},i.e,$ all strings over it's alphabet.
Suppose $L$ is a regular language with alphabet $\sum.$ Give an algorithm to tell whether $L=\sum^{*},i.e,$ all strings over it's alphabet.
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Ullman (TOC) Edition 3 Exercise 4.3 Question 2 (Page No. 155)
Give an algorithm to tell whether a regular language $L$ contains at least $100$ strings.
Give an algorithm to tell whether a regular language $L$ contains at least $100$ strings.
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admin asked Apr 6, 2019
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Ullman (TOC) Edition 3 Exercise 4.3 Question 1 (Page No. 155)
Give an algorithm to tell whether a regular language $L$ is infinite. Hint$:$Use the pumping lemma to show that if the language contains any string whose length is above a certain lower limit, then the language must be infinite.
Give an algorithm to tell whether a regular language $L$ is infinite. Hint$:$Use the pumping lemma to show that if the language contains any string whose length is above ...
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