Square of opposition (nonfiction): Difference between revisions
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Latest revision as of 18:14, 22 June 2016
The square of opposition is a diagram representing the relations between four propositions or four concepts.
The origin of the square can be traced back to Aristotle making the distinction between two oppositions: contradiction and contrariety, although Aristotle did not draw any diagram.
Early diagrams were drawn several centuries later by Apuleius and Boethius.
In the News
Aristotle dreams he is trapped in a Square of oppotion.
Fiction cross-reference
Nonfiction cross-reference
External links
- Square of opposition @ Wikipedia