more on this theme     |     more from this thinker


Single Idea 10138

[filed under theme 18. Thought / E. Abstraction / 7. Abstracta by Equivalence ]

Full Idea

We can see an object as being the abstract of a concept with respect to a relation on concepts. For example, we may say that 0 is the abstract of the empty concept with respect to the relation of one-one correspondence.

Gist of Idea

An object is the abstract of a concept with respect to a relation on concepts

Source

Kit Fine (The Limits of Abstraction [2002], I.2)

Book Ref

Fine,Kit: 'The Limits of Abstraction' [OUP 2008], p.28


A Reaction

This is Fine's attempt to give a modified account of the Fregean approach to abstraction. He says that the reference to a relation will solve the problem of identity between abstractions.


The 11 ideas from 'The Limits of Abstraction'

Fine considers abstraction as reconceptualization, to produce new senses by analysing given senses [Fine,K, by Cook/Ebert]
Implicit definitions must be satisfiable, creative definitions introduce things, contextual definitions build on things [Fine,K, by Cook/Ebert]
Fine's 'procedural postulationism' uses creative definitions, but avoids abstract ontology [Fine,K, by Cook/Ebert]
We can abstract from concepts (e.g. to number) and from objects (e.g. to direction) [Fine,K]
Points in Euclidean space are abstract objects, but not introduced by abstraction [Fine,K]
Abstractionism can be regarded as an alternative to set theory [Fine,K]
An object is the abstract of a concept with respect to a relation on concepts [Fine,K]
Many different kinds of mathematical objects can be regarded as forms of abstraction [Fine,K]
'Creative definitions' do not presuppose the existence of the objects defined [Fine,K]
Postulationism says avoid abstract objects by giving procedures that produce truth [Fine,K]
Abstracts cannot be identified with sets [Fine,K]