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Kleene Star
From dankwiki
The unary regular operator commonly represented as '*', describing:
- zero or more transitions (A*) through a finite automaton (A)
- the smallest superset (V*) of a set of strings (V) such that λ ⊂ V* and V* is closed under concatenation
- the set of all strings (Σ*) of symbols in an alphabet Σ, such that λ ⊂ Σ*
- λ is the empty string
