Ideas from 'Introduction to 'Language Truth and Logic'' by A.J. Ayer [1946], by Theme Structure

[found in 'Language, Truth and Logic' by Ayer,A.J. [Penguin 1974,0-14-021200-0]].

green numbers give full details    |     back to texts     |     expand these ideas

---

13. Knowledge Criteria / B. Internal Justification / 4. Foundationalism / c. Empirical foundations

5163	Basic propositions refer to a single experience, are incorrigible, and conclusively verifiable

15. Nature of Minds / A. Nature of Mind / 4. Other Minds / c. Knowing other minds

5167	The argument from analogy fails, so the best account of other minds is behaviouristic

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

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

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

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

19. Language / D. Propositions / 1. Propositions

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

22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / i. Prescriptivism

5168	Moral approval and disapproval concerns classes of actions, rather than particular actions