first-countable space

topological space in which every point admits a countable neighborhood basis

en-GB/ˈfɜːst - ˈkaʊntəbl ˈspeɪs/
en-US/ˈfɝst - ˈkaʊntəbəl ˈspeɪs/

ক্যাটাগরি:

topological space