3 votes 3 votes what is the difference between lemda and phi in regular expression both are empty or null ? Meenakshi Sharma asked Sep 22, 2016 Meenakshi Sharma 1.9k views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
Best answer 6 votes 6 votes Phi$\left ( \phi \right )$ means an Empty Language,Given as $\Rightarrow L=\left \{ \right \}$ Lambda$\left ( \lambda \right )$ means empty String,it is same as $Epsilon(\varepsilon )$ sourav. answered Sep 22, 2016 • selected Sep 22, 2016 by Meenakshi Sharma sourav. comment Share Follow See all 0 reply Please log in or register to add a comment.