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Can´t find anything affirmative about it. And a NFA with any epsilon transition is a epsilon-NFA ? Thanks.
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Conversion from NFA with ε to DFA. Non-deterministic finite automata(NFA) is a finite automata where for some cases when a specific input is given to the current state, the machine goes to multiple states or more than 1 states. It can contain ε move. It can be represented as M = { Q, ∑, δ, q0, F}.
An epsilon transition (also epsilon move 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: Nondeterministic Turing machine.
DFA cannot use Empty String transition. NFA can use Empty String transition.
DFA doesn't have epsilon transitions.If it had it, it could transit from current state to other state without any input i.e. with nothing , not even {} or phi. And as definition , we know that the input must be from the input set. Hope this cleared your doubt ...
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