Epsilon transition

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An epsilon transition[1] (also epsilon move[1] or lambda transition) allows an automaton to change its state spontaneously, i.e. without consuming an input symbol. It may appear in almost all kinds of nondeterministic automaton in formal language theory, in particular:

References

  1. 1.0 1.1 John E. Hopcroft and Jeffrey D. Ullman (1979). Introduction to Automata Theory, Languages, and Computation. Reading/MA: Addison-Wesley. ISBN 0-201-02988-X. https://archive.org/details/introductiontoau00hopc.  Here: p.24,27

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