SUR LA PUISSANCE DES ENSEMBLES MESURABLES B. In Comptes Rendus Acad. Sci. Vol. 162, 1916, pp. 323-325.

Paris 1916 Offered is entire issue of Comptes Rendus for February 28, 1916 in modern red wrappers with white printed label. Condition is Near Fine with mild crease. 8vo. Near Fine Paperback Important in mathematical development of set theory. Alexandroff proved his first important result in 1915, namely that every nondenumerable Borel set contains a perfect subset. It was not only the result which was important for set theory, but also the methods which he used which turned out to be one of the most useful methods in descriptive set theory. Mathematics.