Directory:Logic Museum/The Square of Opposition
THE SQUARE OF OPPOSITION
A collection of source material on the famous Square of Opposition. The diagram above is from a ninth century manuscript of Apuleius' commentary on Aristotle's Perihermaneias, probably one of the oldest surviving pictures of the square.
<a href = "apuleius-commentary.htm">Apuleius' Commentary on the Perihermaneias</a>
<a href = "perihermaneias.htm">Boethius' translation (in Latin) of the Perihermaneias with Edghill's English translation</a>
<a href = "1periherm67.htm">Edward Buckner's translation of chapters 6 and 7</a>
<a href = "summatotiuslogicae.htm">Natalis on Equipollence</a>
<a href = "nullohomine.htm">Every man is an animal</a>
<a href = "brentanoinnovations.htm">Brentano's Logical Innovations</a>
External links
Internet Encyclopedia entry (This is OK)
Wikipedia April 2007 entry
(I wrote part of this).
Parsons' SEP entry (I shall be discussing Parson's view at Montreux).
Logic/Chapter 2.doc Chapter 2 of Parson's book on medieval logic, which covers similar ground.
Old directions in free logic, by Gyula Klima
Montreux International Congress on the Square.
Edward Buckner
London, May 2007
