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Full Idea
Two things are said to be type-identical when they are similar enough to be declared qualitatively identical.
Gist of Idea
Type-identity is close similarity in qualities
Source
Colin McGinn (Logical Properties [2000], Ch.1)
Book Ref
McGinn,Colin: 'Logical Properties' [OUP 2003], p.2
A Reaction
A simple point which brings out the fact that type-identity is unlikely to be any sort of true identity (unless there is absolutely no different at all between two electrons, say).
| 17848 | Things such as two different quadrangles are alike but not wholly the same [Aristotle] |
| 10024 | The type-token distinction is the universal-particular distinction [Armstrong, by Hodes] |
| 13945 | A token isn't a unique occurrence, as the case of a word or a number shows [Cartwright,R] |
| 6044 | Qualitative identity is really numerical identity of properties [McGinn] |
| 6046 | Qualitative identity can be analysed into numerical identity of the type involved [McGinn] |
| 6043 | Type-identity is close similarity in qualities [McGinn] |
| 6045 | It is best to drop types of identity, and speak of 'identity' or 'resemblance' [McGinn] |
| 8290 | One view is that two objects of the same type are only distinguished by differing in matter [Lowe] |
| 13920 | Each thing has to be of a general kind, because it belongs to some category [Lowe] |
| 6157 | Tokens are dated, concrete particulars; types are their general properties or kinds [Rowlands] |
| 4647 | 'I have the same car as you' is fine; 'I have the same fiancée as you' is not so good [Baggini /Fosl] |