Question: 3. The following language L over A = {a, b): is not context-free. Find an unrestricted (Chomsky type 0) grammar generating it. Hint: First, a

3. The following language L over A = {a, b): is

3. The following language L over A = {a, b): is not context-free. Find an unrestricted (Chomsky type "0") grammar generating it. Hint: First, a string annbn #Abamb can be generated (# is a special symbol erased at the end of generation). Then symbols b can be copied one after another to the right end of the string moving the symbol # to the left for each copied symbol b until # reaches symbols a (and is erased)

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