Combining Texts

All the ideas for 'Defining 'Intrinsic' (with Rae Langton)', 'The Development of Logic' and 'Moral Arguments'

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9 ideas

2. Reason / D. Definition / 1. Definitions
15457 Interdefinition is useless by itself, but if we grasp one separately, we have them both [Lewis]
4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / f. Axiom of Infinity V
10051 The axiom of infinity is not a truth of logic, and its adoption is an abandonment of logicism [Kneale,W and M]
8. Modes of Existence / B. Properties / 4. Intrinsic Properties
15400 We must avoid circularity between what is intrinsic and what is natural [Lewis, by Cameron]
15458 A property is 'intrinsic' iff it can never differ between duplicates [Lewis]
15459 Ellipsoidal stars seem to have an intrinsic property which depends on other objects [Lewis]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / k. Ethics from nature
22375 Moral judgements need more than the relevant facts, if the same facts lead to 'x is good' and 'x is bad' [Foot]
22. Metaethics / B. Value / 1. Nature of Value / b. Fact and value
22377 Whether someone is rude is judged by agreed criteria, so the facts dictate the value [Foot]
22378 We can't affirm a duty without saying why it matters if it is not performed [Foot]
22376 Facts and values are connected if we cannot choose what counts as evidence of rightness [Foot]