Homer Nodded: Von Neumann's Surprising Oversight
Abstract
We review the famous nohiddenvariables theorem in von Neumann's 1932 book on the mathematical foundations of quantum mechanics (Mathematische Grundlagen der Quantenmechanik, Springer, Berlin, 1932). We describe the notorious gap in von Neumann's argument, pointed out by Hermann (Abhandlungen der Fries'schen Schule 6:75152, 1935) and, more famously, by Bell (Rev Modern Phys 38:447452, 1966). We disagree with recent papers claiming that Hermann and Bell failed to understand what von Neumann was actually doing.
 Publication:

Foundations of Physics
 Pub Date:
 September 2018
 DOI:
 10.1007/s1070101801975
 arXiv:
 arXiv:1805.10311
 Bibcode:
 2018FoPh...48.1007M
 Keywords:

 Quantum Physics;
 Physics  History and Philosophy of Physics
 EPrint:
 This is the published version. Some typos in the first posting have been fixed and a few minor changes made for the sake of clarity