75/2285 [Mathematics]. Brouwer, L.E.J. Over de grondslagen der wiskunde. Amst./ Leipsic, Maas & Van Suchtelen, 1907, 1st ed., (8),183,(1)p., orig. wr., thesis.

- Sl. foxed; owner's entry on first blank. Backstrip sl. chipped at top of spine.

= DSB II, p.512: "(...) Brouwer reacted vigorously to the debate between Russell and Poincaré on the logical foundations of mathematics. These reactions were expressed in his doctoral thesis, Over de Grondslagen der Wiskunde (...). In general he sided with Poincaré in his opposition to Russell's and Hilbert's ideas about the foundations of mathematics. He strongly disagreed with Poincaré however, in his opinion on mathematical existence. To Brouwer, mathematical existence did not mean freedom from contradiction, as Poincaré maintained, but intuitive constructibility."