# Talk:Paul Erdős

link to an anecdote Anne Bauval 13:12, 5 July 2011 (UTC)

## I think the Kurdish Circle limerick is misquoted[edit]

The article has:

- A conjecture thought to be sound

Was that every circle was round

In a paper of Erdős

written in Kurdish

A counterexample is found!

cited to "The Magician of Budapest" by Peter Schumer, in *The Edge of the Universe : Celebrating Ten Years of Math Horizons* (2007) by Deanna Haunsperger and Stephen Kennedy, p. 110. I checked the cite, which is correct.

However, I think this is a misquote by Haunsperger and Kennedy. It is much easier to find this version of the limerick:

- A conjecture both deep and profound

Is whether a circle is round.

In a paper of Erdős

Written in Kurdish

A counterexample is found.

found in Erdős, Paul; Purdy, George (1995). "Chapter 17. Extremal Problems in Combinatorial Geometry". in Graham, Ronald L.. *Handbook of combinatorics*. **1**. MIT Press. p. 811. ISBN 9780262571722. Retrieved on October 12, 2011., among many other places, and attributed to Leo Moser.

Since this is the version quoted by Erdős himself, I suggest that we remove the Haunsperger and Kennedy version, which I think is incorrect, and replace it with this one. Any objections? Dominus 16:17, 12 October 2011 (UTC)

- If nobody disagrees, I will replace it soon. Dominus 01:33, 14 October 2011 (UTC)
- I have now added the earlier variant, but retained the later one in the comments below it. ~ Kalki (talk · contributions) 02:54, 14 October 2011 (UTC)