Automata Step by Step

Now we will define “Sequence”

Sequence:
A sequence is an ordered list of objects (or events). Like a set, it contains members (also called elements or terms), and the number of terms (possibly infinite) is called the length of the sequence. Unlike a set, order matters, and the exact same elements can appear multiple times at different positions in the sequence.

Now we will define “Language”.

Language(or Formal Language):

A Language is a set of strings over a given input alphabet.
As an example of formal language, an alphabet might be {a, b}and a string over that alphabet might be “ababba”