The aim of this paper is to show, using the reflection principle, three new cardinal inequalities. These results improve some well-known bounds on the cardinality of Hausdorff spaces.
@article{119035, author = {Alessandro Fedeli}, title = {On the cardinality of Hausdorff spaces}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {39}, year = {1998}, pages = {581-585}, zbl = {0913.54004}, mrnumber = {1666814}, language = {en}, url = {http://dml.mathdoc.fr/item/119035} }
Fedeli, Alessandro. On the cardinality of Hausdorff spaces. Commentationes Mathematicae Universitatis Carolinae, Tome 39 (1998) pp. 581-585. http://gdmltest.u-ga.fr/item/119035/
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