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Small Universal Families of Graphs on ℵω+1

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journal contribution
posted on 01.08.2014, 00:00 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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