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3. the symbol is kleene closure definition closure...

# Question: the symbol is kleene closure definition closure...

###### Question details

the * symbol is = Kleene Closure

● Definition: closure of an alphabet S, Kleene star Given an alphabet S, the closure of S (or Kleene star), denoted S* , is the language containing all words made up of finite sequences of letters from S, including the empty string L.

● Examples: Σ = {x} Σ* = {∧, x, xx, xxx, …}

Σ = {0, 1} Σ* = {∧, 0, 1, 00, 01, 10, 11, 000, 001, …}

Σ = {a, b, c} Σ* = ?