Bradd W. Szonye wrote:
> COLLECTION-FOLD-LEFT/RIGHT
>
> For dictionaries, enumerates the range-domain pairs. In other words,
> the "single collection value" accepted by the fold-function should be
> a (cons range-value domain-value).

Please excuse me for foolishly swapping "range" and "domain." The domain
is what you map from, and the range (aka codomain) is what you map to. I
haven't done set-theory work in a while, and I got the two turned
around. Therefore, dictionaries should be collections of domain-range
pairs, with the domain indexed for easy retrieval.
--
Bradd W. Szonye
http://www.szonye.com/bradd