Combining Texts
Ideas for
'Function and Concept', 'The Emergence of Probability' and 'Introduction to 'Language Truth and Logic''
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5 ideas
19. Language / A. Nature of Meaning / 5. Meaning as Verification
5164
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A statement is meaningful if observation statements can be deduced from it [Ayer]
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5165
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Directly verifiable statements must entail at least one new observation statement [Ayer]
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5166
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The principle of verification is not an empirical hypothesis, but a definition [Ayer]
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19. Language / B. Reference / 5. Speaker's Reference
4972
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I may regard a thought about Phosphorus as true, and the same thought about Hesperus as false [Frege]
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19. Language / D. Propositions / 1. Propositions
5162
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Sentences only express propositions if they are meaningful; otherwise they are 'statements' [Ayer]
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