|Meaning theory: a theory that seeks to explain the meaning of meaning. Problem the concept of meaning and truth seem to presuppose each other.|
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|Meaning Theory||I 35
Verificationistic Meaning Theory / Verificationism / Positivism / Fraassen: the full cognitive content of a statement is a function of the empirical results that would verify or refute it. Therefore, there can be no real differences between the two hypothese with the same empirical content. - e.g. Vaihinger: ("as if"): even if there are no electrons, the observable world would be just as it is, when Rutherford s theory were true - Verificationism: then both theories run out to the same thing. - PutnamVs: no, because one says that there are electrons, the other say there aren’t. - even when the observable phenomena are as Rutherford says that there are,the unobservables aren’t. - PositivismVsPutnam: that you can never prove.
B. van Fraassen
The Scientific Image Oxford 1980