Ideas from '(Nonsolipsistic) Conceptual Role Semantics' by Gilbert Harman [1987], by Theme Structure

[found in 'Reasoning Meaning and Mind' by Harman,Gilbert [OUP 1999,0-19-823802-9]].

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2. Reason / A. Nature of Reason / 6. Coherence
Reasoning aims at increasing explanatory coherence
Reason conservatively: stick to your beliefs, and prefer reasoning that preserves most of them
5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic
We have a theory of logic (implication and inconsistency), but not of inference or reasoning
5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / d. and
I might accept P and Q as likely, but reject P-and-Q as unlikely
7. Existence / D. Theories of Reality / 2. Reality
Reality is the overlap of true complete theories
15. Nature of Minds / A. Nature of Mind / 6. Anti-Individualism
There is no natural border between inner and outer
We can only describe mental attitudes in relation to the external world
15. Nature of Minds / B. Features of Minds / 5. Qualia / c. Explaining qualia
The way things look is a relational matter, not an intrinsic matter
18. Thought / D. Concepts / 5. Concepts and Language / a. Concepts and language
Concepts in thought have content, but not meaning, which requires communication
19. Language / A. Nature of Meaning / 6. Meaning as Use
The use theory attaches meanings to words, not to sentences
Take meaning to be use in calculation with concepts, rather than in communication
19. Language / A. Nature of Meaning / 7. Meaning Holism / c. Meaning by Role
Meaning from use of thoughts, constructed from concepts, which have a role relating to reality
Some regard conceptual role semantics as an entirely internal matter
The content of thought is relations, between mental states, things in the world, and contexts
19. Language / F. Communication / 3. Denial
If one proposition negates the other, which is the negative one?
19. Language / F. Communication / 6. Interpreting Language / a. Translation
Mastery of a language requires thinking, and not just communication