Question
Show that the following are undecidable: (a) Given a CFG G1 and a CFG G2, is L(G1) equal to L(G2)? (b) Given a CFG G1
Show that the following are undecidable:
(a) Given a CFG G1 and a CFG G2, is L(G1) equal to L(G2)?
(b) Given a CFG G1 and a CFG G2, is L(G1) a subset of L(G2)?
(c) Given a CFG G and a regular expression R, is L(G) equal to L(R)?
(d) Given a CFG G and a regular expression R, is L(R) a subset of L(G)?
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Fundamentals Of Database Systems
Authors: Ramez Elmasri, Shamkant B. Navathe
7th Edition Global Edition
1292097612, 978-1292097619
