On Mar 28, 2007, at 6:05 PM, Joe Marshall wrote:
Thanks for reminding me of that. But as I understand the paper, it treats the SET! version as the canonical semantics and shows that the fixed-point version can implement it in certain situations.
Right.
This is slightly different from what I was suggesting.
Maybe I didn't understand what you were suggesting. Are you proposing any specific canonical semantics of letrec that does not involve side effects but is still useful[*] for Scheme? Aziz,,, [*] as in: it better not require lazy evaluation or infinite expansion. _______________________________________________ r6rs-discuss mailing list [email protected] http://lists.r6rs.org/cgi-bin/mailman/listinfo/r6rs-discuss
