I wrote:
>  Can we test drive one or more of these ideas 
>  (ie experimental & undocumented) during the J7 beta?
>  Would my chances improve if I posted a working model?

Totally untested, and still lacking those motivating examples, but here is a
model:

        
http://www.jsoftware.com/svn/DanBron/trunk/environment/rank-reproposed.ijs

You can now experiment with the various proposals in this thread:

        r  = new overall definition of " (subsuming the other proposals)
        rV = new u"v, where u"v y <=> u"(v y) y 
        rG = u"(f`g`h)
        rB = u"(1;2 2;3 3 3) <=> u"1"2 2"3 3 3 

I didn't add a model for Ambrus' proposed changes, but it's easy enough to
do if there's interest.  Feedback to the Forum, please.

-Dan


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