alphabet

#formal_language_theory

Definition

An alphabet $\Sigma = \{a,b,...\}$ is a finite set of letters

References

M. Avanzini, Lecture Notes, Topic: “finite automata.” M1-AL, Centre Inria d’Université Côte d’Azur, 2021. https://www-sop.inria.fr/members/Martin.Avanzini/teaching/2021/AL/slides/w1.pdf