A new grammar G combined productions of G1 and G2 and added a new start symbol S and th productions S-→ SS11S2 | ɛ . Then G accepts (L1)* N (L2)*| (L1 N L2)* (L2)* U (L1)* (L1)*(L2)* (LIL2)* (L2 U L1)*

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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A new grammar G combined productions of G1 and G2 and added a new start symbol S and the
productions S→ SS1S2 | ɛ .
Then G accepts
(L1)* N (L2)*|
(L1 N L2)*
(L2)* U (L1)*
(L1)*(L2)*
(LIL2)*
(L2 U L1)*
Transcribed Image Text:A new grammar G combined productions of G1 and G2 and added a new start symbol S and the productions S→ SS1S2 | ɛ . Then G accepts (L1)* N (L2)*| (L1 N L2)* (L2)* U (L1)* (L1)*(L2)* (LIL2)* (L2 U L1)*
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