P. Halmos Measure Theory, D. van Nostrand and Co., 1950. P. Halmos, A Hilbert Space Problem Book, Springer, New York 1982 (problem 3 contains version for vector spaces with coordinate systems).
P Halmos Measure Theory, D. van Nostrand and Co., 1950. P. Halmos, A Hilbert Space Problem Book, Springer, New York 1982 (problem 3 .contains version for vector spaces with coordinate systems).