Suppose that language L1 has CFG, G1 = (V1, e, R1, S1) and language L2 has CFG, G2 = (V2, e, R2, S2) where the alphabet e is the same for both languages and V1 ∩ V2 = ∅. Give a CFG G3 for L1, ○L2 in terms of G1 and G2. You dont have to prove the correctness of your CFG G3. Note that “○” is the concatenation operator.

Database System Concepts
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ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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Suppose that language L1 has CFG, G1 = (V1, e, R1, S1) and language L2 has CFG, G2 = (V2, e, R2, S2) where the alphabet e is the same for both languages and V1 ∩ V2 = ∅. Give a CFG G3 for L1, ○L2 in terms of G1 and G2. You dont have to prove the correctness of your CFG G3. Note that “○” is the concatenation operator.

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