PP-2011-08: Khomskii, Yurii (2011) William of Sherwood, singular propositions and the hexagon of opposition. [Report]
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Abstract
In Aristotelian logic, the predominant view has always been that there
are only two kinds of quantities: universal and particular. For this
reason, philosophers have struggled with singular propositions (e.g.,
``Socrates is running''). One modern approach to this problem, as
first proposed in 1955 by Tadeusz Czezowski, is to extend the
traditional Square of Opposition to a Hexagon of Opposition.
We note that the medieval author William of Sherwood developed a
similar theory of singular propositions, much earlier than Czezowski,
and that it is not impossible that the Hexagon itself could have been
present in Sherwood's writings.
| Item Type: | Report |
|---|---|
| Report Nr: | PP-2011-08 |
| Series Name: | Prepublication (PP) Series |
| Year: | 2011 |
| Uncontrolled Keywords: | William of Sherwood; Square of opposition; Medieval logic |
| Subjects: | Logic |
| Date Deposited: | 12 Oct 2016 14:37 |
| Last Modified: | 12 Oct 2016 14:37 |
| URI: | https://eprints.illc.uva.nl/id/eprint/412 |
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