The Racket distribution comes with several languages. You were probably using the socalled teaching languages, which are small subsets of real Racket. Using a s

The Racket distribution comes with several languages. You were probably using the socalled teaching languages, which are small subsets of real Racket. Using a subset of the real language allows better and more beginner friendly error messages. The real Racket language is a general purpose language with all the bells and whistles you could ever imagine.