Give a counterexample to show that the following construction fails to prove that the class of context-free
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Give a counterexample to show that the following construction fails to prove that the class of context-free languages is closed under star. Let A be a CFL that is generated by the CFG G = (V, Σ,R, S). Add the new rule S → SS and call the resulting grammar G0. This grammar is supposed to generate A*.
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The closure properties of a regular language include union concatenation intersection Kleene complem...View the full answer
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