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Full Idea
We distinguish two kinds of existence questions: first, entities of a new kind within the framework; we call them 'internal questions'. Second, 'external questions', concerning the existence or reality of the system of entities as a whole.
Gist of Idea
Existence questions are 'internal' (within a framework) or 'external' (concerning the whole framework)
Source
Rudolph Carnap (Empiricism, Semantics and Ontology [1950], 2)
Book Ref
Carnap,Rudolph: 'Meaning and Necessity (2nd ed)' [Chicago 1988], p.206
A Reaction
This nicely disposes of many ontological difficulties, but at the price of labelling most external questions as meaningless, so that the internal answers have very little commitment, and the external (big) questions are now banned. Not for me.
Related Idea
Idea 12217 For ontology we need, not internal or external views, but a view from outside reality [Fine,K]
8748 | Logical positivists incorporated geometry into logicism, saying axioms are just definitions [Carnap, by Shapiro] |
8960 | Internal questions about abstractions are trivial, and external ones deeply problematic [Carnap, by Szabó] |
13932 | Empiricists tend to reject abstract entities, and to feel sympathy with nominalism [Carnap] |
13933 | Existence questions are 'internal' (within a framework) or 'external' (concerning the whole framework) [Carnap] |
13934 | To be 'real' is to be an element of a system, so we cannot ask reality questions about the system itself [Carnap] |
13936 | Questions about numbers are answered by analysis, and are analytic, and hence logically true [Carnap] |
13935 | We only accept 'things' within a language with formation, testing and acceptance rules [Carnap] |
13937 | New linguistic claims about entities are not true or false, but just expedient, fruitful or successful [Carnap] |
13939 | No possible evidence could decide the reality of numbers, so it is a pseudo-question [Carnap] |
13938 | A linguistic framework involves commitment to entities, so only commitment to the framework is in question [Carnap] |
13940 | All linguistic forms in science are merely judged by their efficiency as instruments [Carnap] |