Nelson's Logical Diagrams
History and Overview
2024-06-13 v2 Logic
Abstract
As is now well known, the generalization of the square of opposition to a hexagon was discovered independently by three philosophers in the early 1950s: Paul Jacoby, Augustin Sesmat, and Robert Blanch\'{e} . Much less well known is the earlier use of similar diagrams by the German philosopher Leonard Nelson (1882-1927). This paper explores the significance of Nelson's work for the history of the JSB hexagon and for logical geometry more widely.
Cite
@article{arxiv.2303.06498,
title = {Nelson's Logical Diagrams},
author = {Andrew Aberdein},
journal= {arXiv preprint arXiv:2303.06498},
year = {2024}
}
Comments
13 pages, 15 figures