I. The axioms -- II. Geometrical character of [italic]L and the ring [script]R -- III. Unitary transformations -- IV. Definiteness -- V. Real traces -- VI. Real traces and transition probabilities -- VII. Completeness properties. Uniqueness of the real trace. The center -- VIII. The operatorial description in a unitary space -- IX. Construction of all systems [italic]L
Notes
"Reproduces a manuscript (third draft) written by John von Neumann in 1937 (the original hand-written manuscript is kept in the J. von Neumann file in the Library of Congress)"--Foreword