I notice that the Wikipedia article for Racket (a little sparse in my opinion)
http://en.wikipedia.org/wiki/Racket_(programming_language) asserts that Racket was the first higher order language to use a contract system, but that statement has been flagged as needing a citation to back it up. What would be an appropriate reference? _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
