lisp-2 – Tarik Billa

Separate Namespaces for Functions and Variables in Common Lisp versus Scheme

January 7, 2024 by Tarik

The two different approaches have names: Lisp-1 and Lisp-2. A Lisp-1 has a single namespace for both variables and functions (as in Scheme) while a Lisp-2 has separate namespaces for variables and functions (as in Common Lisp). I mention this because you may not be aware of the terminology since you didn’t refer to it … Read more

What is the difference between Lisp-1 and Lisp-2?

December 29, 2022 by Tarik

You might like to read this paper by Richard Gabriel. It is a summary of the issues that the Lisp community were discussing in Lisp1 vs Lisp2. It’s a bit dense and slow moving in the first few sections, but is much easier to read by the time you get past section 5. Basically, Lisp1 … Read more