Strong colorings without nontrivial polychromatic sets

יום א', 08/12/2013 - 10:10
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Seminar: 
Abstract: 

Michal shall prove Shelah's thereom that the Continuum Hypothesis entails a coloring c:[w1]2-->w such that c``[A]2=w for every uncountable subset A of w1, and yet c admits no 3-sized set X on which c|[X]2 is one-to-one.

 

Lecture notes