Form equivalence class Howard-Rubin Number: 126
Statement: If \((X,T)\) is a topological space, then for everyfamily \(D=\{D_i: i\in\omega\}\) of dense open sets of\(X\), there is a countable dense set \(S\subseteq X\) such that for all\(i\in\omega\) and for all but finitely many \(s\in S\), \(s\in D_i\).Keremedis [1999a] and Note 132.
Howard-Rubin number: 126 E
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