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Apr 6, 2014 at 19:25 answer added Seirios timeline score: 2
Jun 22, 2010 at 20:32 history edited Charles Matthews CC BY-SA 2.5
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Jun 1, 2010 at 13:11 comment added David Carchedi Thanks very much for all the answers! I'm avoiding accepting an answer as the question can clearly have multitude of "correct" answers.
May 28, 2010 at 1:24 answer added The Mathemagician timeline score: 4
May 27, 2010 at 21:43 answer added Andrés E. Caicedo timeline score: 14
May 27, 2010 at 21:14 answer added Simon Thomas timeline score: 6
May 27, 2010 at 17:56 comment added François G. Dorais This is very closely related to this question - mathoverflow.net/questions/11261/…
May 27, 2010 at 15:26 answer added Roberto Frigerio timeline score: 12
May 27, 2010 at 13:03 answer added Todd Trimble timeline score: 12
May 27, 2010 at 12:40 comment added David Corfield Here are two very good pieces of exposition on ultrafilters: topologicalmusings.wordpress.com/2008/07/18/… and terrytao.wordpress.com/2007/06/25/…
May 27, 2010 at 11:37 answer added supercooldave timeline score: 4
May 27, 2010 at 10:38 comment added Andrej Bauer Ultrafilters are also used in forcing in set theory, with the same effect as in the construction of ultraproducts, namely a quotient by an ultrafilter collapses a complete Boolean algebra to the Boolean algebra $\lbrace 0,1 \rbrace$.
May 27, 2010 at 10:26 answer added Charles Matthews timeline score: 5
May 27, 2010 at 10:02 history asked David Carchedi CC BY-SA 2.5