Abstract
It is proved that an infinite dimensional subspace ofm is complemented inm if and only if it is isomorphic tom.
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The research reported in this document has been sponsored by the Air Force Office of Scientific Research under Grant AF EOAR 66-18, through the European Office of Aerospace Research (OAR) United States Air Force.
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Lindenstrauss, J. On complemented subspaces ofm . Israel J. Math. 5, 153–156 (1967). https://doi.org/10.1007/BF02771101
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DOI: https://doi.org/10.1007/BF02771101