Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Question
thumb_up100%
Find a context-free grammar for each of the following languages over the alphabet {a, b}. (N: the natural number set)
a. {anb2n | n ∈ N U {0}} U {an+2bn | n ∈ N}
b. {ambn | m, n ∈ N, and n > m}.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by stepSolved in 3 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Define a NPDA for the language L= {uv € {a, b}*||u|l = |v| and u # v*}. Another way to interpret L is that it is the set of all cven length strings that are not a palindrome.arrow_forwardConsider the following languages over Σ = {0,1} for L5 is the language of all strings that have at most two 0s.arrow_forwardConstruct a FA(in TG)that accepts the language generated by the Regular Grammer: A →aB B →abA| barrow_forward
- Prove that the following language is regular.L = {x | x ∈ {0, 1}∗, x does not contain five consecutive 0's or five consecutive 1's}Hint: You may take advantage of some closure properties.arrow_forwardWrite a complete CFG that recognizes the language: L = {aibj | i ≤ j}arrow_forwardQ: Let Ls= {|R1 and R2 are regular expressions and L(R1) = L(R2)}. Ls is a language containing all strings that contain pairs of regular expressions that accept the same language. Show that Ls is decidable.arrow_forward
- L = {am+n bm cn | m,n ≥ 1} over Σ = {a, b, c} A. Design PDA for L (with as less as states possible) B. Is L is regular language? C. Verify it by Pumping Lemmaarrow_forwardQ6: Give context-free grammars that generate the following languages: w = 10 {w€ {0, 1}* ||w| is even }, |w| means the size of the string {w € {0, 1}* | the length of w is odd and the middle symbol is 0} ●arrow_forwardLet { a b } be the alphabet set. Write a Context free grammar CFG for each of the followinglanguages:a) L = Language of all palindromeb) L = language of equal no of a’s and b’c) { \ m ≠ n, m, n ∈ N}d) R.E. = b(a+b)*e) R.E. = (ab + b)*f) R.E. = ab(ba)* + bb please solve all the parts kindlyarrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education