Question: When using the pumping lemma with length to prove that the language L = {abra, n > 0} is nonregular, the following approach is taken.

When using the pumping lemma with length to prove that the

When using the pumping lemma with length to prove that the language L = {abra, n > 0} is nonregular, the following approach is taken. Assume Lis regular. Then there exists an FA with k states which accepts L We choose a word w = abka = xyz, which is a word in L. Some options for choosing xyz exist 1. x=y= a, z = bka 2. x = a, y = bP, z = bkPa, for some p > 0, p 0, p+q

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