Ideas from 'Change in View: Principles of Reasoning' by Gilbert Harman [1986], by Theme Structure

[found in 'Change in View: Principles of Reasoning' by Harman,Gilbert [MIP 1986,978-0-262-58091-5]].

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2. Reason / A. Nature of Reason / 1. On Reason
The rules of reasoning are not the rules of logic
It is a principle of reasoning not to clutter your mind with trivialities
If there is a great cost to avoiding inconsistency, we learn to reason our way around it
Logic has little relevance to reasoning, except when logical conclusions are immediate
2. Reason / A. Nature of Reason / 4. Aims of Reason
Implication just accumulates conclusions, but inference may also revise our views
10. Modality / B. Possibility / 6. Probability
The Gambler's Fallacy (ten blacks, so red is due) overemphasises the early part of a sequence
High probability premises need not imply high probability conclusions
11. Knowledge Aims / A. Knowledge / 4. Belief / c. Aim of beliefs
We strongly desire to believe what is true, even though logic does not require it
13. Knowledge Criteria / B. Internal Justification / 5. Coherentism / a. Coherence as justification
In revision of belief, we need to keep track of justifications for foundations, but not for coherence
Coherence is intelligible connections, especially one element explaining another