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Full Idea
One requirement for a successful count is that double counting should be avoided: a single object should not be counted twice. ...but that is to make a knowledgeable judgement of distinctness - to resolve a question of identity in the negative.
Gist of Idea
A single object must not be counted twice, which needs knowledge of distinctness (negative identity)
Source
Ian Rumfitt (Concepts and Counting [2002], III)
Book Ref
-: 'Aristotelian Society' [], p.56
A Reaction
He also notes later (p.65) that you must count all and only the right things.
| 17461 | Some 'how many?' answers are not predications of a concept, like 'how many gallons?' [Rumfitt] |
| 17462 | A single object must not be counted twice, which needs knowledge of distinctness (negative identity) [Rumfitt] |