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Multiple values for R4RS.

   Date: Tue, 22 Aug 89 14:15:28 PDT
   From: Norman Adams <adams%tekchips.labs.tek.com@relay.cs.net>

   As an implementor, I would prefer not
   to be committed to keeping around arity information for every

I can't imagine how one could create an implementation in which the arity
information is not already present in some form for procedures that are passed
as arguments.  Similarly, implicit continuations had better know something
about the number of values on which they intend to operate.  Retrieving the
arity information may require some bit twiddling, but I suspect that the needed
information is always present in some form.

Morry Katz