diff --git a/process/guide.md b/process/guide.md index 526298922a..ec080a8bac 100644 --- a/process/guide.md +++ b/process/guide.md @@ -1339,7 +1339,9 @@ implementation. Let us continue! and return the first element. If the list (or vector) is empty or is `nil` then `nil` is returned. * `rest`: this function takes a list (or vector) as its argument and - returns a new list containing all the elements except the first. + returns a new list containing all the elements except the first. If + the list (or vector) is empty or is `nil` then `()` (empty list) + is returned. * In the main program, call the `rep` function with the following string argument to define a new control structure.