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Aug 11, 2011 at 18:38 comment added Stephen ...''just a fixed point theorem.'' I don't find this criticism very trenchant. One of the fundamental problems of mathematics is to solve equations (of various sorts). A result that proves that a system of equations has at least one solution is a good result. How good depends on how non-obvious the existence of the solution is. Maybe von Neumann's criticism was somewhat more detailed? How non-obvious was Nash's result at the time?
Sep 6, 2010 at 18:58 history edited Carl Futia CC BY-SA 2.5
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Sep 6, 2010 at 18:53 history answered Carl Futia CC BY-SA 2.5