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A combinatorial forcing for coding the universe by a real when there are no sharps
Published online by Cambridge University Press: 12 March 2014
Abstract
Assuming 0# does not exist, we present a combinatorial approach to Jensen's method of coding by a real. The forcing uses combinatorial consequences of fine structure (including the Covering Lemma, in various guises), but makes no direct appeal to fine structure itself.
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- Research Article
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- Copyright © Association for Symbolic Logic 1995
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