In the domain of computer science and software engineering, the core theoretical principle distinguishing state modification is the separation between **mutation** and **reassignment**. This framework defines a **mutable object** as a data structure capable of undergoing change after creation, where any modification affects the underlying object referenced by all variables pointing to it. Conversely, **reassignment** is a binding operation that alters the variable's reference to a new object without affecting the original object's state, thereby resolving ambiguity in variable scope and object identity.
In the domain of computer science and software engineering, the core theoretical principle distinguishing state modification is the separation between **mutation** and **reassignment**. This framewor…