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Results tagged with pushdown-automata
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user 118845
Questions about state machines with a single stack for memory. They characterize the class of context-free languages.
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Useless states in a PDA
I am trying to solve a problem in Sipser's Introduction to the Theory of Computation book, which reads:
4.22 A useless state in a pushdown automaton is never entered on any input string. Consider the …
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