[r6rs-discuss] A suggestion about LETREC

[Joe Marshall]

Since we're discussing the semantics of LETREC, I've always thought it was
a wart in the language to specify LETREC in terms of SET!  It would be nice
if implementations were permitted (but not required) to implement LETREC
in terms of a fixed-point operator as an alternative to SET!

One advantage of this is that it would be much easier to create a purely
functional subset of Scheme.

-- 
~jrm