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Single Idea 10543

[filed under theme 9. Objects / A. Existence of Objects / 2. Abstract Objects / c. Modern abstracta ]

Full Idea

For an object to be abstract, we require only that an understanding of any name of that object involves a recognition that the object is in the range of some functional expression.

Gist of Idea

Abstract objects must have names that fall within the range of some functional expression

Source

Michael Dummett (Frege Philosophy of Language (2nd ed) [1973], Ch.14)

Book Ref

Dummett,Michael: 'Frege Philosophy of Language' [Duckworth 1981], p.485


A Reaction

I'm not sure I understand this, but a function must involve a relation between some objects, such that a unique object is consequently picked out.


The 17 ideas with the same theme [examples amd principles of modern abstracta]:

Wholly uniform things like space and numbers are mere abstractions [Leibniz]
Frege says singular terms denote objects, numerals are singular terms, so numbers exist [Frege, by Hale]
Frege establishes abstract objects independently from concrete ones, by falling under a concept [Frege, by Dummett]
Logical objects are extensions of concepts, or ranges of values of functions [Frege]
There can be impossible and contradictory objects, if they can have properties [Meinong, by Friend]
Abstract objects must have names that fall within the range of some functional expression [Dummett]
It is absurd to deny the Equator, on the grounds that it lacks causal powers [Dummett]
'We've crossed the Equator' has truth-conditions, so accept the Equator - and it's an object [Dummett]
Abstract objects nowadays are those which are objective but not actual [Dummett]
We deal with abstract objects all the time: software, poems, mistakes, triangles.. [Boolos]
Properties make round squares and round triangles distinct, unlike exemplification [Zalta, by Swoyer]
Contextually defined abstract terms genuinely refer to objects [Wright,C, by Dummett]
The empty set is the purest abstract object [Jubien]
Objects just are what singular terms refer to [Hale/Wright]
Numbers, sets and propositions are abstract particulars; properties, qualities and relations are universals [Jacquette]
Bodies, properties, relations, events, numbers, sets and propositions are 'things' if they exist [Lowe]
The modern Fregean use of the term 'object' is much broader than the ordinary usage [Hale]