Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2024 MCQ for Proceedings of the American Mathematical Society is 0.85.

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On closed sets of ordinals
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by Harvey Friedman
Proc. Amer. Math. Soc. 43 (1974), 190-192
DOI: https://doi.org/10.1090/S0002-9939-1974-0327521-9
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Abstract:

We prove that every stationary set of countable ordinals contains arbitrarily long countable closed subsets.
References
  • Robert M. Solovay, Real-valued measurable cardinals, Axiomatic Set Theory (Proc. Sympos. Pure Math., Vol. XIII, Part I, Univ. California, Los Angeles, Calif., 1967) Amer. Math. Soc., Providence, R.I., 1971, pp. 397–428. MR 0290961
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Bibliographic Information
  • © Copyright 1974 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 43 (1974), 190-192
  • MSC: Primary 04A20
  • DOI: https://doi.org/10.1090/S0002-9939-1974-0327521-9
  • MathSciNet review: 0327521