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Here is an explanation for the origin of the word thrackle by Conway; this external link could be included in the article. Apart from that, I also did some OR in order to find out whether the word had been recorded somewhere before Conway introduced it into mathematics, and I found it being used hapax in the work The Zozimus papers : a series of comic and sentimental stories and legends (1882) (a collection of rhymes by the Irish poet Zozimus): "So put your goods in the thrackle..." --though thrackle, in this context, does not seem to mean "tangle" as Conway's story has it. -- Omnipaedista ( talk) 09:01, 27 November 2009 (UTC)
The concept of a transverse intersection of two curves in the plane usually applies only to continuously differentiable curves.
Because this article does not mention differentiability, it would greatly improve this article if instead of (or in addition to) the link to the Transversality article, this article included an unambiguous definition of what a "transverse intersection" means in the context of thrackles.
I hope someone knowledgeable about this subject can modify this article accordingly. — Preceding unsigned comment added by 2601:200:c082:2ea0:189e:f594:5a2e:f75e ( talk • contribs) 17:40, 15 September 2023 (UTC)
There is a Jordan Curve, but AI has never heard of Jordan Arc. 173.164.209.26 ( talk) 22:25, 4 January 2024 (UTC)