Question: Please answer ALL questions. This question allows you to explore variants of the computational models we've defined in class. Let a k-PDA be a push

Please answer ALL questions.

Please answer ALL questions. This question allows you to explore variants of

This question allows you to explore variants of the computational models we've defined in class. Let a k-PDA be a push down automaton that has k stacks. In this sense, a 0-PDA is an NFA and a 1-PDA is a conventional PDA. We know that 1-PDAs are more powerful (recognize a larger class of languages) than 0-PDAs. Show that 2-PDAs are more powerful than 1-PDAs

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