Some natural equivalence relations in the Solovay model
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We obtain some non-reducibility results concerning some natural equivalence relations on reals in the Solovay model. The proofs use the existence of reals x which are minimal with respect to the cardinals in L[x], in a certain sense.
KeywordsEquivalence relations Solovay model Forcing Constructibility
Mathematics Subject Classification (2000)03E15 03E35 03E45
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