Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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D. Construct the CFG in CNF of the given language: 1. Language L = {w is in {a, b}* | w = a"b2n where n 2 1}. Sample strings in L = {abb, aabbbb, aaabbbbbb, aaaabbbbbbbb, ...} 2. Language L = {w is in {a, b}* | w has at least 3 b's}. Sample strings in L = {bbb, ababab, aaabbbb, abbaabb, aabaaabbbaaa, ...} %3D %3D
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Transcribed Image Text:D. Construct the CFG in CNF of the given language: 1. Language L = {w is in {a, b}* | w = a"b2n where n 2 1}. Sample strings in L = {abb, aabbbb, aaabbbbbb, aaaabbbbbbbb, ...} 2. Language L = {w is in {a, b}* | w has at least 3 b's}. Sample strings in L = {bbb, ababab, aaabbbb, abbaabb, aabaaabbbaaa, ...} %3D %3D
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