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Single Idea 13937

[filed under theme 12. Knowledge Sources / D. Empiricism / 3. Pragmatism ]

Full Idea

The acceptance of new linguistic forms about entities cannot be judged as being either true or false because it is not an assertion. It can only be judged as being more or less expedient, fruitful, conducive to the aim for which the language is intended.

Gist of Idea

New linguistic claims about entities are not true or false, but just expedient, fruitful or successful

Source

Rudolph Carnap (Empiricism, Semantics and Ontology [1950], 3)

Book Ref

Carnap,Rudolph: 'Meaning and Necessity (2nd ed)' [Chicago 1988], p.214

A Reaction

The obvious problem seems to be that a complete pack of lies might be successful for a very long time, if it plugged a critical hole in a major theory. Is success judged financially? How do we judge success without mentioning truth?

The 20 ideas from Rudolph Carnap

16252 Metaphysics uses empty words, or just produces pseudo-statements [Carnap]
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]
13938 A linguistic framework involves commitment to entities, so only commitment to the framework is in question [Carnap]
13939 No possible evidence could decide the reality of numbers, so it is a pseudo-question [Carnap]
13940 All linguistic forms in science are merely judged by their efficiency as instruments [Carnap]
13048 Good explications are exact, fruitful, simple and similar to the explicandum [Carnap, by Salmon]
12131 All concepts can be derived from a few basics, making possible one science of everything [Carnap, by Brody]
18699 Carnap tried to define all scientific predicates in terms of primitive relations, using type theory [Carnap, by Button]
13251 Each person is free to build their own logic, just by specifying a syntax [Carnap]
13342 Carnap defined consequence by contradiction, but this is unintuitive and changes with substitution [Tarski on Carnap]
11968 The intension of a sentence is the set of all possible worlds in which it is true [Carnap, by Kaplan]
14305 In the truth-functional account a burnt-up match was soluble because it never entered water [Carnap]
18285 All translation loses some content (but language does not create reality) [Carnap]