Combining Texts

All the ideas for 'Reply to Sixth Objections', 'Foundations of Geometry' and 'What is the Basis of Moral Obligation?'

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11 ideas

1. Philosophy / D. Nature of Philosophy / 5. Aims of Philosophy / d. Philosophy as puzzles
9254 In philosophy the truth can only be reached via the ruins of the false [Prichard]
6. Mathematics / A. Nature of Mathematics / 2. Geometry
13472 Hilbert aimed to eliminate number from geometry [Hilbert, by Hart,WD]
6. Mathematics / B. Foundations for Mathematics / 3. Axioms for Geometry
9546 Euclid axioms concerns possibilities of construction, but Hilbert's assert the existence of objects [Hilbert, by Chihara]
18742 Hilbert's formalisation revealed implicit congruence axioms in Euclid [Hilbert, by Horsten/Pettigrew]
18217 Hilbert's geometry is interesting because it captures Euclid without using real numbers [Hilbert, by Field,H]
7. Existence / C. Structure of Existence / 5. Supervenience / c. Significance of supervenience
3644 Two things being joined together doesn't prove they are the same [Descartes]
13. Knowledge Criteria / D. Scepticism / 3. Illusion Scepticism
3621 Only judgement decides which of our senses are reliable [Descartes]
23. Ethics / C. Virtue Theory / 1. Virtue Theory / c. Particularism
9256 I see the need to pay a debt in a particular instance, and any instance will do [Prichard]
9257 The complexities of life make it almost impossible to assess morality from a universal viewpoint [Prichard]
23. Ethics / D. Deontological Ethics / 2. Duty
9255 Seeing the goodness of an effect creates the duty to produce it, not the desire [Prichard]
28. God / A. Divine Nature / 6. Divine Morality / d. God decrees morality
3637 Ideas in God's mind only have value if he makes it so [Descartes]