Form Classes

Form equivalence class Howard-Rubin Number: 1

Statement:

For each \(\lambda\in\Lambda\) let \(S_\lambda\) be a subset of some topological space \(X_\lambda\). Then

cl\(\left(\prod_{\lambda\in\Lambda}S_\lambda\right)=\prod_{\lambda\in\Lambda}\hbox{cl}\left(S_{\lambda}\right)\),
where the first ``cl'' is closure in the product topology and the second ``cl'' is closure in \(X_\lambda\).

Howard-Rubin number: 1 AY

Citations (articles): Schechter [1992] Two topological equivalents of the axiom of choice

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References (books):

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