Subject: [Fwd: Dunwoody]
Date: Mon, 15 Apr 2002 18:36:04 -0400
From: jim stasheff <stasheff@email.unc.edu>
To: walter <wmichael@math.uno.edu>, mccleary <mccleary@vaxsar.vassar.edu>,
     dondavis <dmd1@lehigh.edu>

Peter Freyd wrote:
>
> The present version of Dunwoody's ms is number eight. And a
> punctuation mark has been added. It is now;
>
>    "A proof of the Poincare conjecture?"
>
> The ms has a few paragraphs on the top (in italics) acknowledging a
> big gap. They end with:
>
>   "I do not see how to prove [the lemma]. There may be an argument
>   using thin position (I hope!)."
>
> And who is credited with finding the gap? Colin Rourke. (For all you
> youngsters: Rourke's proof of the Poincare conjecture was permanently
> undone by a couple of people then at Penn.)