> What has racket on top of (common, I assume?) lisp?
Racket is from the Scheme family rather than the Common Lisp family, (Racket used to be PLT-Scheme before the name was changed because Racket isn't strictly an implementation of the Scheme standard, though it includes such an implementation among its bundled languages.)
Racket is from the Scheme family rather than the Common Lisp family, (Racket used to be PLT-Scheme before the name was changed because Racket isn't strictly an implementation of the Scheme standard, though it includes such an implementation among its bundled languages.)