... form in Lisp that you will need to use in most function definitions. 22 Chapter 1: List ProcessingBuffer Names 23 2 Practicing EvaluationBefore learning how to write a function definition in Emacs ... this:(buffer-name)"*scratch*"You cannot do this in Info since Info is read-only and it will not allow you to change the contents of the buffer. But you can do this in any buffer youcan edit; and when you write ... nil, nil, and some value." In this example, Emacs binds the symbol birch to the number 3, binds thesymbols pine and fir to nil, and binds the symbol oak to the value some.Note that in the...