Quasi-normality of Mrowka spaces
Keywords:normal, Ï€-normal, mildly normal, quasi-normal, closed domain, Ï€closed, MrÂ´owka space, continuum hypothesis (CH), truly cardinality c
A topological space X is called quasi-normal if X is regular and any two disjoint Ï€-closed subsets A and B of X are separated. We give a Mr Ìowka space which is not quasi-normal and use the continuum hypothesis (CH) and truly cardinality c to present Mr Ìowka spaces which are quasi-normal.
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