We show that a Banach space X is weakly Lindeloef determined iff each non-separable space isomorphic to a complemented subspace of X has a projectional resolution of the identity. This answers a question posed by Mercourakis and Negrepontis.
We show that a Banach space X is weakly Lindeloef determined iff each non-separable space isomorphic to a complemented subspace of X has a projectional resolution of the identity. This answers a question posed by Mercourakis and Negrepontis. (en)