[Om] Accessing arguments of an n-ary operator as indexed list items (in a definition)

Professor James Davenport jhd at cs.bath.ac.uk
Sat May 9 00:36:31 CEST 2009

On Thu, May 7, 2009 7:55 pm, Christoph LANGE wrote:
> On Thursday 07 May 2009 10:40:41 David Carlisle wrote:
>> The translations of MathML n-ary usage as appearing in the editors draft
>> at
>> http://monet.nag.co.uk/~dpc/draft-spec/chapter4.html
>> (ignorigning various special cases)
>> essentially treats the n-ary usage as synonymous for
>> apply_to_list
>>    intersectionOf
>>    list
>>       x1
>>       xn
> Thanks, David, that's exactly what I've been looking for!
Indeed: that's essentially my point that nassoc operators can be treated
as binary, but expressed much better than I did.
> Indeed, assuming the existence of such a function x(i) seems more elegant
That's a good point we seem to keep skating round this problem.
> than
> assuming the existence of a list variable and decomposing that list using
> list3#length and list3#entry.

James Davenport
Visiting Full Professor, University of Waterloo
Hebron & Medlock Professor of Information Technology and
Chairman, Powerful Computing WP, University of Bath
OpenMath Content Dictionary Editor and Programme Chair, OpenMath 2009
IMU Committee on Electronic Information and Communication

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