If $L$ is a context-free language and $\epsilon \notin L $, how do you show that there exists a PDA that accepts the language by final state such that it has not more than two states and makes no $\epsilon$-moves ?
2026-03-27 21:43:21.1774647801
Constructing PDA with either one state or two states
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Hint: Take a context-free grammar in Chomsky normal form for $L$ and think about how you might be able to use this to construct the PDA in question. (You can use the stack to perform the derivations, essentially.)