Date: 8 Apr 87 14:56 PDT
From: Masinter.pa@xerox.com
It is an error to redefine *any* of the built-in symbols of Common Lisp,
whether they are macros, special forms, or functions.
I can't find, offhand, where in CLtL it says that.
Can you give a reference? Or is this a proposed cleanup?
--Guy