looking for an ordinal notation paper

[Graham Leigh]

Hendrik’s description reminds me of Tim Carlson’s patterns of resemblance, though I’m not sure if the described notation appeared in print. Carlson and Gunnar Wilken have a number of papers about this notation system. An early paper is:
TJ Carlson “Elementary patterns of resemblance”, APAL 108 (2001).

Best,
Graham

> On 30 Aug 2021, at 19:13, Hendrik Boom <hendrik at topoi.pooq.com> wrote:
> 
> Several years ago, maybe even several decades, I read a posting on this 
> mailing list presenting an ordinal notation that I have not been able to 
> find again.
> 
> I remember that the notation used horizontal extended parentheses, rather 
> resembling ties and slurs in musical notation, and that the nesting 
> patterns of these parentheses contributed to the meaning of the notation.
> 
> Can anyone provide a link to the posting or the associated paper(s)?
> 
> -- Hendrik Boom
>