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Ideas for '', 'Introduction to 'Language Truth and Logic'' and 'The Anti-Christ'

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5 ideas

19. Language / A. Nature of Meaning / 5. Meaning as Verification

5164	A statement is meaningful if observation statements can be deduced from it [Ayer]

5165	Directly verifiable statements must entail at least one new observation statement [Ayer]

5166	The principle of verification is not an empirical hypothesis, but a definition [Ayer]

19. Language / D. Propositions / 1. Propositions

5162	Sentences only express propositions if they are meaningful; otherwise they are 'statements' [Ayer]

19. Language / F. Communication / 3. Denial

11214

We learn 'not' along with affirmation, by learning to either affirm or deny a sentence [Rumfitt]