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|Sai V 115f
Verification/Principle/Sainsbury: V1 (Hempel) a generalization is confirmed by each of its instances - (does not apply to grue) - Another principle: Ã1: If one knows of two hypotheses a priori that they are equivalent, then all data confirm which confirm the one hypothesis, also confirm the other. - This leads to paradoxes.
G4 A hypothesis: All Fs are Gs is confirmed by a corpus of data that contains its instances and no counter-instances exactly when the data does not say there is or even there is highly likely to be a property H, of which is valid that the examined Fs are only G because they are H: from G4 follows that the hypothesis that all emeralds are grue is confirmed by the data consisting only of statements of the form "This is a green emerald", but it does not follow from this that the hypothesis of the corpus of data, including the background information, which we actually own, is validated.
N.B.: that explains why the data does not confirm that all the emeralds are grue._____________Explanation of symbols: Roman numerals indicate the source, arabic numerals indicate the page number. The corresponding books are indicated on the right hand side. ((s)…): Comment by the sender of the contribution.
Me I Albert Menne Folgerichtig Denken Darmstadt 1988
HH II Hoyningen-Huene Formale Logik, Stuttgart 1998
Re III Stephen Read Philosophie der Logik Hamburg 1997
Sal IV Wesley C. Salmon Logik Stuttgart 1983
Sai V R.M.Sainsbury Paradoxien Stuttgart 2001