Question: Give a CFG that generates all regular expressions over {a,b}*, and justify your answer. Note: It is the regular expressions themselves we want to generate,

Give a CFG that generates all regular expressions over {a,b}*, and justify your answer. Note: It is the regular expressions themselves we want to generate, not the strings represented by the

regular expressions. For example, (a+e)(ab)* should be one of these strings.

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