2005/10/9, stéphane ducasse <ducasse at iam.unibe.ch>:
> We were waiting that someone say that :)
> Indeed this is the first basic trait example.

A basic trait example for me is Magnitude.
You implement #< and #=, you get #<=, #>, #>=, #min:, #max; #min:max:,
#between:and: and you're still free to choose as superclass what you
want.