[plt-scheme] Re: plt-scheme Digest, Vol 7, Issue 31

geb a wrote:
 > Hello,
 >
 > The following code is taken from SICP's section on
 > streams verbatim.
...
 > (define (cons-stream a b)
 >   (cons a (delay b)))

Except for this definition. Felix has already shown you
how to define cons-stream as a special form. Later on
in SICP you will run into the same problems with amb.

See

     <http://schemecookbook.org/view/Cookbook/MiscSICP>

for how to define amb and for how to use the SICP
picture language.

-- 
Jens Axel Søgaard