All scheme dialects are lisps, but Racket and the various scheme implementations are Lisp-1's, with the same namespace for functions and variables, while Common

All scheme dialects are lisps, but Racket and the various scheme implementations are Lisp-1's, with the same namespace for functions and variables, while Common LISP is a lisp-2, which have separate function and variable namespaces. See http://en.wikipedia.org/wiki/Lisp-1_vs._Lisp-2#The_function_namespace http://en.wikipedia.org/wiki/Lisp-1_vs._Lisp-2#The_function_...