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Statements
22 May 2009
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Standard model
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nonstandard model
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ultrafilter
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first-order formula
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König's lemma
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Ramsey's theorem
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Shnirel'man density
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lower asymptotic density
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upper Banach density
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Birkhoff ergodic theorem
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Pünnecke's theorem
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Kneser's theorem
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Freiman's little theorem
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