Form equivalence class Howard-Rubin Number: 232
Statement: Every open cover \(\cal{U}\) of a metric space \((X,d)\)has a refinement \(\cal{V}\) which covers \(X\) and which can be written as awell ordered union \(\bigcup \{V_\alpha :\alpha\in\gamma\}\) where each\(V_\alpha\) is locally finite. Howard/Keremedis/Rubin/Stanley [1999] and Note 141.
Howard-Rubin number: 232 I
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