On 9/27/07, Sherlock, Ric <[EMAIL PROTECTED]> wrote:
> Any pointers or other approaches to consider gratefully accepted!

(note that you did not show your definition for tnub).

I am having a problem understanding why /. does not work for you.

For example, what would you expect from
   key +/tkey dat
which is different from an expression like
   (3&{:: +//. 4&{::)invtble
?

Thanks,

-- 
Raul
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