On closed sets of ordinals
Author:
Harvey Friedman
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
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Abstract | References | Similar Articles | Additional Information
Abstract: We prove that every stationary set of countable ordinals contains arbitrarily long countable closed subsets.
- [1] 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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Additional Information
DOI:
https://doi.org/10.1090/S0002-9939-1974-0327521-9
Keywords:
Ordinals,
cardinals
Article copyright:
© Copyright 1974
American Mathematical Society