6 found
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  1.  15
    On the consistency strength of ‘Accessible’ Jonsson Cardinals and of the Weak Chang Conjecture.Hans-Dieter Donder & Peter Koepke - 1983 - Annals of Pure and Applied Logic 25 (3):233-261.
  2.  12
    Some principles related to Chang's conjecture.Hans-Dieter Donder & Jean-Pierre Levinski - 1989 - Annals of Pure and Applied Logic 45 (1):39-101.
    We determine the consistency strength of the negation of the transversal hypothesis. We also study other variants of Chang's conjecture.
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  3.  13
    Regularity of Ultrafilters and the Core Model.Hans-Dieter Donder, Peter Koepke, Jean-Pierre Levinski & D. J. Walker - 1990 - Journal of Symbolic Logic 55 (3):1313-1315.
  4.  13
    Condensation-coherent global square systems.Hans-Dieter Donder, Ronald B. Jensen & Lee J. Stanley - 1985 - In Anil Nerode & Richard A. Shore (eds.), Recursion Theory. American Mathematical Society. pp. 42--237.
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  5.  3
    Canonical functions, non-regular ultrafilters and Ulam's problem on 1.Oliver Deiser & Hans-Dieter Donder - 2003 - Journal of Symbolic Logic 68 (3):713-739.
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  6.  5
    On the Consistency Strength of `Accessible' Jonsson Cardinals and of the Weak Chang Conjecture.Some Applications of Short Core Models.Hans-Dieter Donder & Peter Koepke - 1989 - Journal of Symbolic Logic 54 (4):1496-1497.