Question: Let k-PDA be a PDA with k stacks. Thus, a 0-PDA is an NFA and a 1-PDA is equivalent to a CFG. Show that 2-PDA

Let k-PDA be a PDA with k stacks. Thus, a 0-PDA is an NFA and a 1-PDA is equivalent to a CFG.

Show that 2-PDA is Turing-Complete.

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