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Let G1 = (V1,T1, S1, P1) and G2 = (V2, T2, S2, P2) be context-free grammars. %3D Consider the grammar G = (V,T,S,P), where %3D V = Vị U V½ U{S} and S is a new start variable that is neither in Vị nor in V2 T = T¡U T2 and P contains all productions in P and P2 as well as the new productions S → SS1|SS2|A, If G1 generates L1 and G2 generates L2, what is the language generated by G?

Let G1 = (V1,T1, S1, P1) and G2 = (V2, T2, S2, P2) be context-free grammars. %3D Consider the grammar G = (V,T,S,P), where %3D V = Vị U V½ U{S} and S is a new start variable that is neither in Vị nor in V2 T = T¡U T2 and P contains all productions in P and P2 as well as the new productions S → SS1|SS2|A, If G1 generates L1 and G2 generates L2, what is the language generated by G?

Database System Concepts
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
Section: Chapter Questions
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Let G1 = (V1,T1, S1, P1) and G2 = (V2, T2, S2, P2) be context-free grammars. Consider the grammar G = (V,T, S, P), where %3D V = VịU V, U{S} and S is a new start variable that is neither in Vị nor in V2 T= T¡U T, and P contains all productions in P and P2 as well as the new productions S → SS1|SS2|A, If G1 generates L1 and G2 generates L2, what is the language generated by G? O L̟L2 O (LU L2)* L;U L; O LU L2
Transcribed Image Text:Let G1 = (V1,T1, S1, P1) and G2 = (V2, T2, S2, P2) be context-free grammars. Consider the grammar G = (V,T, S, P), where %3D V = VịU V, U{S} and S is a new start variable that is neither in Vị nor in V2 T= T¡U T, and P contains all productions in P and P2 as well as the new productions S → SS1|SS2|A, If G1 generates L1 and G2 generates L2, what is the language generated by G? O L̟L2 O (LU L2)* L;U L; O LU L2
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