Question: Let L = { bam 1 bam 2 bam 3 . . . bamn : n 2 , m 1 , m 2 , .

Let L ={bam1bam2bam3... bamn : n 2, m1, m2,..., mn 0, and mi mj for some i, j}. a) Show a PDA that accepts L. b) Show a context-free grammar that generates L. c) Prove that L is not regular.

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