verifiability principle - Weblio 英和・和英辞典 (original) (raw)

2001, Samir Okasha, “Verificationism, Realism and Scepticism”, in Erkenntnis, volume 55, number 3, page 376:

Carnap, for example, invoked the verifiability principle to argue that the problem of the external world was a 'pseudo-problem'—for neither the proposition 'there is an external world' nor its negation is verifiable in experience, so both are meaningless.