Can a DFA have epsilon/lambda transitions?

liwing picture liwing · Dec 9, 2012 · Viewed 23.5k times · Source

Can´t find anything affirmative about it. And a NFA with any epsilon transition is a epsilon-NFA ? Thanks.

Answer

Bhushan Firake picture Bhushan Firake · Dec 9, 2012

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 ...