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Single Idea 10019

[filed under theme 2. Reason / D. Definition / 11. Ostensive Definition ]

Full Idea

Only what is logically complex can be defined; what is simple can only be pointed to.

Gist of Idea

Only what is logically complex can be defined; what is simple must be pointed to

Source

Gottlob Frege (Grundgesetze der Arithmetik 2 (Basic Laws) [1903], §180), quoted by Harold Hodes - Logicism and Ontological Commits. of Arithmetic p.137

Book Ref

-: 'Journal of Philosophy' [-], p.137


A Reaction

Frege presumably has in mind his treasured abstract objects, such as cardinal numbers. It is hard to see how you could 'point to' anything in the phenomenal world that had atomic simplicity. Hodes calls this a 'desperate Kantian move'.


The 6 ideas with the same theme [definition by pointing out one or more examples]:

Only what is logically complex can be defined; what is simple must be pointed to [Frege]
Empirical words need ostensive definition, which makes them egocentric [Russell]
Ostensive definitions needn't involve pointing, but must refer to something specific [Salmon,N]
Ostensive definitions look simple, but are complex and barely explicable [Gupta]
Ostensive definitions point to an object which an expression denotes [Mautner]
Simple things like 'red' can be given real ostensive definitions [Lowe]