Final answer:
The 'Not a Lexeme' lexeme is not typically included in a state diagram.
Step-by-step explanation:
In a state diagram, the 'Not a Lexeme' lexeme is typically not included. State diagrams are used to represent the behavior and transitions of a system, and 'Not a Lexeme' is not a valid state or transition in a lexical analysis process.
A state diagram would typically include valid lexemes such as identifiers, keywords, and operators, and the transitions between them based on the rules of the language being analyzed.
Excluding 'Not a Lexeme' from the state diagram helps ensure that only valid lexemes are considered in the lexical analysis process.