Re: Appending lists

[Emanuel Berg]

tomas wrote:

> On the contrary. Mutable objects can change. Cons cells are
> mutable objects, and thus lists, which are made of those.

Indeed, I just thought of that :)

(let ((cell (cons 'head 'tail)))
  (list (car cell)
        (cdr cell) )) ; (head tail)

That means maybe I have to take what I just said back, it
isn't the list that is the universal data structure, well, it
is universal as well, but the even more basic and still
universal data structure is the PAIR, or cons cell!

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