Combining Texts

All the ideas for 'works', 'On Euclidean Geometry' and 'Reply to Sixth Objections'

expand these ideas     |    start again     |     specify just one area for these texts

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5 ideas

5. Theory of Logic / G. Quantification / 2. Domain of Quantification

17743

De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki]

5. Theory of Logic / K. Features of Logics / 1. Axiomatisation

16886

The truth of an axiom must be independently recognisable [Frege]

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]

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]