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Non-constructive Galois-Tukey connections

Published online by Cambridge University Press:  12 March 2014

Heike Mildenberger
Heike Mildenberger*
Affiliation:
Mathematisches Institut der, Universität Bonn, Beringstr. 1, 53115 Bonn, Germany, E-mail: heike@math.uni-bonn.de
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Abstract

There are inequalities between cardinal characteristics of the continuum that are true in any model of ZFC, but without a Borel morphism proving the inequality. We answer some questions from Blass [1].

Type
Research Article
Information
The Journal of Symbolic Logic , Volume 62 , Issue 4 , December 1997 , pp. 1179 - 1186
Copyright
Copyright © Association for Symbolic Logic 1997

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References

REFERENCES

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