Medieval Theories of Haecceity

[Revised entry by Richard Cross on May 12, 2014. Changes to: Main text] First proposed by John Duns Scotus (1266 - 1308), a haecceity is a non-qualitative property responsible for individuation
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[Revised entry by Richard Cross on May 12, 2014. Changes to: Main text] First proposed by John Duns Scotus (1266 - 1308), a haecceity is a non-qualitative property responsible for individuation and identity. As understood by Scotus, a haecceity is not a bare particular in the sense of something underlying qualities. It is, rather, a non-qualitative property of a substance or thing: it is a "thisness" (a haecceitas, from the Latin haec,...

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News source: Stanford Encyclopedia of Philosophy

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