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Consider the three problems:
  1. Equivalence
  2. Ambiguity
  3. Regularity
What is the correct option regarding these given problems?
  • a)
     Regular and context free grammars are closed in all three problems.
  • b)
     Regular grammar is closed in equivalence and regularity but not in ambiguity.
  • c)
     Regular grammar is closed in all three but CFL is not closed in anyone.
  • d)
     Regular and CFL grammar is closed in equivalence and regularity but not in ambiguity.
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Consider the three problems: Equivalence Ambiguity RegularityWhat is t...
For regular grammar and CFL grammar:
1. Equivalence: It can be checked by developed product automate for XOR function. If XOR = 0 ⇒ equal else not. Two context-free grammars are defined as being structurally equivalent if they generate the same sentences and assign similar parse trees (differing only in the labeling of the nodes) to each. It is argued that this type of equivalence is more significant than weak equivalence, which requires only that the same sentences be generated.
2. Ambiguity: Ambiguity is decidable for regular languages & grammar since they are deterministic in nature. A context-free language is called ambiguous if there is no unambiguous grammar to define that language and it is also called inherently ambiguous.
3. Regularity: It is the trivial problem. For context-free language. It is not closed in any of those problems.
So, Regular grammar is closed in all three problems given but CFL is not closed in anyone.
Hence, the correct option is (C).
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Consider the three problems: Equivalence Ambiguity RegularityWhat is the correct option regarding these given problems?a)Regular and context free grammars are closed in all three problems.b)Regular grammar is closed in equivalence and regularity but not in ambiguity.c)Regular grammar is closed in all three but CFL is not closed in anyone.d)Regular and CFL grammar is closed in equivalence and regularity but not in ambiguity.Correct answer is option 'C'. Can you explain this answer?
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Consider the three problems: Equivalence Ambiguity RegularityWhat is the correct option regarding these given problems?a)Regular and context free grammars are closed in all three problems.b)Regular grammar is closed in equivalence and regularity but not in ambiguity.c)Regular grammar is closed in all three but CFL is not closed in anyone.d)Regular and CFL grammar is closed in equivalence and regularity but not in ambiguity.Correct answer is option 'C'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Consider the three problems: Equivalence Ambiguity RegularityWhat is the correct option regarding these given problems?a)Regular and context free grammars are closed in all three problems.b)Regular grammar is closed in equivalence and regularity but not in ambiguity.c)Regular grammar is closed in all three but CFL is not closed in anyone.d)Regular and CFL grammar is closed in equivalence and regularity but not in ambiguity.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the three problems: Equivalence Ambiguity RegularityWhat is the correct option regarding these given problems?a)Regular and context free grammars are closed in all three problems.b)Regular grammar is closed in equivalence and regularity but not in ambiguity.c)Regular grammar is closed in all three but CFL is not closed in anyone.d)Regular and CFL grammar is closed in equivalence and regularity but not in ambiguity.Correct answer is option 'C'. Can you explain this answer?.
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