Geodesic
A Countable Nowhere First Countable Hausdorff Space
Canadian mathematical bulletin, Tome 16 (1973) no. 3, pp. 441-442

Voir la notice de l'article provenant de la source Cambridge University Press

Here an example of a countable, nowhere first countable Hausdorff space is given. 
III, P. W. Harley. A Countable Nowhere First Countable Hausdorff Space. Canadian mathematical bulletin, Tome 16 (1973) no. 3, pp. 441-442. doi: 10.4153/CMB-1973-071-x
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[1] 1. Steen, L. and Seebach, J., Counterexamples in topology, Holt, New York, 1971. Google Scholar

[2] 2. Harley, P. W., III, On sequential spaces and maps, (to appear). Google Scholar

[3] 3. Rudin, W., Principles of mathematical analysis, McGraw-Hill, New York, 1953. Google Scholar

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