On first and second countable spaces and the axiom of choice
In this paper it is studied the role of the axiom of choice in some theorems in which the concepts of first and second countability are used. Results such as the following are established:
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| Format: | article |
| Language: | eng |
| Published: |
2004
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10316/4635 |
| Country: | Portugal |
| Oai: | oai:estudogeral.sib.uc.pt:10316/4635 |