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2. 6 pt] Define a BNF grammar that generates the set of all palindromes on the alphabet { a, b }. For example, the strings

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2. 6 pt] Define a BNF grammar that generates the set of all palindromes on the alphabet { a, b }. For example, the strings a, abba, babab are in the language, while the strings ab, baba, baa are not

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