Question: Consider a Pushdown Automaton with 2 stacks (called a PDA2). It works similarly to a PDA, except at each move the automaton will check the

Consider a Pushdown Automaton with 2 stacks (called a PDA2). It

Consider a Pushdown Automaton with 2 stacks (called a PDA2). It works similarly to a PDA, except at each move the automaton will check the state, input and tops of both stacks, and then move to a new state and perform push-pop-null operations on both stacks. Show that a PDA2 is more powerful than a PDA by giving a PDA2 in table format to recognize L {a"b"cn | n > 0} which is not a CFL

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