VON NEUMANN, Les fondements mathématiques de la mécanique quantique, 1947

First french edition. (with label of presses universitaires de france. 1947 on the title page)
John von Neumann (1903-1957) was an American mathematician and physicist of Hungarian origin. He made major contributions to theoretical computer science, game theory, and quantum mechanics. The work lays the rigorous mathematical foundations of quantum mechanics using operator theory in Hilbert spaces and had a fundamental impact on the development of modern physics.