Motivated by some examples, we introduce the concept of special almost P-space and show, using the reflection principle, that for every space $X$ of this kind the inequality ``$|X| \leq \psi_{c}(X)^{t(X)}$" holds.
@article{118935, author = {Alessandro Fedeli}, title = {Special almost P-spaces}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {38}, year = {1997}, pages = {371-374}, zbl = {0886.54032}, mrnumber = {1455504}, language = {en}, url = {http://dml.mathdoc.fr/item/118935} }
Fedeli, Alessandro. Special almost P-spaces. Commentationes Mathematicae Universitatis Carolinae, Tome 38 (1997) pp. 371-374. http://gdmltest.u-ga.fr/item/118935/
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