7. Construct a grammar for the following languages. a) { a*b"| n > 0} U {cmdm |m > 0 } b) { a"b"| n > 0} U {a™b™ | m > 0 } c) { a*b°c*, where x = y + z} U { L=a*b°c*, where z = x + y}

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Constuct grammar for following languages

7. Construct a grammar for the following languages.
a) { a*b"| n > 0} u {cmd"|m> 0 }
b) { a"b"| n > 0} U {a"b™ | m 2 0 }
c) { a*b'c*, where x = y + z} U {L=a*b°c°, where z = x + y}
%3D
Transcribed Image Text:7. Construct a grammar for the following languages. a) { a*b"| n > 0} u {cmd"|m> 0 } b) { a"b"| n > 0} U {a"b™ | m 2 0 } c) { a*b'c*, where x = y + z} U {L=a*b°c°, where z = x + y} %3D
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