1. 2007-02-20 [plt-scheme] trying to make a function that adds a li racket-us Marco Morazan 2. 2007-02-18 [plt-scheme] trying to make a function that adds a li racket-us Matthias Felleisen 3. 2007-02-17 [plt-scheme] trying to make a function that adds a li racket-us trista