User:Jshflynn/Definition:Kleene star
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Definition
Let $\Sigma$ be an alphabet.
Let $V$ be a subalphabet of $\Sigma$.
Then the Kleene star of $V$ is denoted $V^*$ and defined:
- $\ds \bigcup_{i \mathop \in \N_0} V^i$
Also known as
Some authors call this:
- Kleene closure
- Monoid closure