It is known that a space with every countable-to-one regular preimage normal must be at least < C-cwN. We construct a model of ZFC + CH with a normal space X that has every countable-toone regular preimage normal but is not < c+ -cwH, so that ZFC does not imply stronger separation properties for the
β¦ LIBER β¦
The regular spaces with countably based models
β Scribed by Keye Martin
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 232 KB
- Volume
- 305
- Category
- Article
- ISSN
- 0304-3975
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