On Mon, Jul 28, 2003 at 11:23:42AM -0700, Jim White wrote:
> I have a second thought that addresses my concerns:
>
> collection-fold[-keys]-left and collection-fold[-keys]-right are not
> specified with regard to the order of enumeration.   For unordered
> collections, collection-fold-right the implementation may either raise
> an error or provide an enumeration in reverse order or collection-fold-left.
In other words, collection-fold-right is undefined on unordered
collections.

>
> collection-fold[-keys]-increasing and collection-fold[-keys]-decreasing
> are specified to be an ordered enumeration and are only defined for
> ordered collections.

I like this proposal, but how does it address your enumeration stability
concerns?

	Scott