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Leonardi.DB
a logical geometry project

Edward A. Hacker   (°1930, †2020)

Edward A. Hacker authored the following 2 sources, containing a total of 9 diagrams.

Parry, William T., and Edward A. Hacker. 1991. Aristotelian Logic. Albany, NY: State University of New York Press. (8 diagrams)
Hacker, Edward A. 1975. “The Octagon of Opposition.” Notre Dame Journal of Formal Logic 16 (3): 352–353. (1 diagram)
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