From: Andrew Bistak
Subject: Natural Numbers in LISP
Date: Mon, 12 Jun 1995 00:00:00 +0000
Message-ID: <3rj6vf$ons@nyx10.cs.du.edu>

How do I represent natural numbers in LISP. Wheres as an empty list, nil
represents the number 0 and the list (1) respresents the number 1.
i.e.
>(SUM (1))
(1)
>(SUM (1 1 1 1) (1 1) (1))
(1 1 1 1 1 1 1)

OR divide
>(DIVIDE (1 1 1) (1))
(1 1 1)

This has really got me stooped! Any help would be much appreciated.
regards