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Feb 28, 2017 at 22:36 comment added Rex Butler That's not a loss, at least not a complete loss... it's a classification theorem.
May 13, 2012 at 8:47 comment added JeffE I heard the same story about a PhD thesis, where someone in the audience announced during the defense that the class of objects having the amazing properties described by the student was actually empty. I assume all such stories are apocryphal.
May 10, 2012 at 16:14 comment added roy smith Edmund, this may be related to your question. mathoverflow.net/questions/93716/…
May 10, 2012 at 16:04 comment added roy smith This reminds me of a colloquium talk I heard at Harvard some 40 years ago, in which a famous speaker generalized some results of Bott to an abstract setting. At the end, Bott, who was sitting in front, asked the speaker if he knew any examples of his theoretical objects other than, as I recall, sections of vector bundles over (possibly compact?) manifolds. The answer was "No, I don't."
May 10, 2012 at 9:44 comment added Edmund Harriss This is interesting, anyone have more details?
May 10, 2012 at 8:41 history answered Per Manne CC BY-SA 3.0