ArticleOriginal scientific text

Title

Remarks on Pκλ-combinatorics

Authors 1

Affiliations

  1. Department of Mathematics, University of Osaka, Prefecture Gakuen-chou, Sakai, Japan

Abstract

We prove that {xPκλxκ is almost x-ineffable} has p(NInκ,λ<κ)-measure 1 and {xPκλxκ is x-ineffable} has I-measure 1, where I is the complete ineffable ideal on Pκλ. As corollaries, we show that λ-ineffability does not imply complete λ-ineffability and that almost λ-ineffability does not imply λ-ineffability

Bibliography

  1. Y. Abe, Notes on Pκλ and [λ]κ, Tsukuba J. Math. 10 (1986), 155-163.
  2. D. Carr, Pκλ-generalizations of weak compactness, Z. Math. Logik Grundlag. Math. 31 (1985), 393-401.
  3. D. Carr, The structure of ineffability properties of Pκλ, Acta Math. Hungar. 47 (1986), 325-332.
  4. D. Carr, Pκλ partition relations, Fund. Math. 128 (1987), 181-195.
  5. D. Carr and D. Pelletier, Towards a structure theory for ideals on Pκλ, in: Set Theory and its Applications, J. Steprāns and S. Watson (eds.), Lecture Notes in Math. 1401, Springer, 1987, 41-54.
  6. T. Jech, Some combinatorial problems concerning uncountable cardinals, Ann. Math. Logic 5 (1973), 165-198.
  7. C. A. Johnson, Distributive ideals and partition relations, J. Symbolic Logic 51 (1986), 617-625.
  8. C. A. Johnson, Some partition relations for ideals on Pκλ, Acta Math. Hungar. 56 (1990), 269-282.

Additional information

http://matwbn.icm.edu.pl/ksiazki/fm/fm145/fm14523.pdf

Pages:
141-151
Main language of publication
English
Received
1993-03-10
Accepted
1994-02-15
Published
1994
Exact and natural sciences