Definition:Set of Finite Strings/Also defined as

Set of Finite Strings: Also defined as

Let $\Sigma$ be an alphabet.

Some sources use $\Sigma^*$ to denote the set of all strings from $\Sigma$ whether finite or not.

Sources

• 1979: John E. Hopcroft and Jeffrey D. Ullman: Introduction to Automata Theory, Languages, and Computation ... (previous) ... (next): Chapter $1$: Preliminaries: $1.1$ Strings, Alphabets and Languages