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Small Universal Families of Graphs on ℵω+1

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journal contribution
posted on 01.08.2014 by James Cummings, Mirna Dzamonja, Charles Morgan

We prove that it is consistent that ℵω is strong limit, 2ω is large and the universality number for graphs on ℵω+1 is small. The proof uses Prikry forcing with interleaved collapsing

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01/08/2014

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