Geodesic
How many clouds cover the plane?
James H. Schmerl1
1 Department of Mathematics University of Connecticut Storrs, CT 06269, U.S.A.
Fundamenta Mathematicae, Tome 177 (2003) no. 3, pp. 209-211.

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The plane can be covered by $n+2$ clouds iff $2^{\aleph _0} \leq \aleph _n$.
DOI : 10.4064/fm177-3-2
Keywords: plane covered clouds aleph leq aleph

James H. Schmerl 1

1 Department of Mathematics University of Connecticut Storrs, CT 06269, U.S.A. 
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James H. Schmerl. How many clouds cover the plane?. Fundamenta Mathematicae, Tome 177 (2003) no. 3, pp. 209-211. doi : 10.4064/fm177-3-2. http://geodesic.mathdoc.fr/articles/10.4064/fm177-3-2/

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