Combining Texts

All the ideas for 'Purifications (frags)', 'Counterfactuals' and 'On the Reality of Accidents'

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4 ideas

8. Modes of Existence / E. Nominalism / 4. Concept Nominalism
Abstracta are abbreviated ways of talking; there are just substances, and truths about them [Leibniz]
10. Modality / B. Possibility / 8. Conditionals / c. Truth-function conditionals
Lewis says indicative conditionals are truth-functional [Lewis, by Jackson]
10. Modality / B. Possibility / 9. Counterfactuals
In good counterfactuals the consequent holds in world like ours except that the antecedent is true [Lewis, by Horwich]
26. Natural Theory / D. Laws of Nature / 4. Regularities / b. Best system theory
A law of nature is a general axiom of the deductive system that is best for simplicity and strength [Lewis]