[seanmcdirmid]

See Gabriel's Incommensurability essay:

http://www.dreamsongs.com/Files/Incommensurability.pdf

[lispm]

Thanks, I'm forgetting this paper too often...

[seanmcdirmid]

RPG uses mixins as a direct example of the concept, very interesting read if you can get through his style.

[lispm]

My Lisp Machine has a lot more examples of this...