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"The problem of the interrelationship of several observers," handwritten notes, circa 1955
Description: Among Hugh Everett's files were a number of handwritten documents related to the writing of his thesis. Some of them were early notes on ideas and material that ultimately appeared in the long thesis. This document, entitled "The problem of the interrelationship of several observers" by Everett, was found in a file labeled "Random notes". It describes a very early version of the Wigner's friend thought experiment.
Rights: This material is provided for private study, scholarship, or research. Transmission or reproduction of any material protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners and Professor Jeffrey A. Barrett. The author(s) of the material or their heirs retain copyright to this material.
Used with the permission of the estate of Hugh Everett, III.
Provenance: This document was found in the basement of Mark Everett in 2007 by Mark Everett and Peter Byrne, in a file labelled "Random notes."
Publisher: University of California, Irvine Libraries. Irvine, California 92623-9557. http://www.lib.uci.edu.