Kleene Star | Theory of Computation
- Definition − The Kleene star, ∑*, is a unary operator on a set of symbols or strings, ∑, that gives the infinite set of all possible strings of all possible lengths over ∑ including λ.
- Representation − ∑* = ∑0 ∪ ∑1 ∪ ∑2 ∪……. where ∑p is the set of all possible strings of length p.
- Example − If ∑ = {a, b}, ∑* = {λ, a, b, aa, ab, ba, bb,………..}
