Combining Texts

All the ideas for 'The Origin of the Work of Art', 'On Multiplying Entities' and 'Gentzen's Analysis of First-Order Proofs'

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

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8 ideas

1. Philosophy / D. Nature of Philosophy / 5. Aims of Philosophy / b. Philosophy as transcendent

15585

Later Heidegger sees philosophy as more like poetry than like science [Heidegger, by Polt]

2. Reason / B. Laws of Thought / 6. Ockham's Razor

8207	The quest for simplicity drove scientists to posit new entities, such as molecules in gases [Quine]

8208	In arithmetic, ratios, negatives, irrationals and imaginaries were created in order to generalise [Quine]

5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic

13831

Logic is based on transitions between sentences [Prawitz]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives

13825

Natural deduction introduction rules may represent 'definitions' of logical connectives [Prawitz]

5. Theory of Logic / H. Proof Systems / 4. Natural Deduction

13823

In natural deduction, inferences are atomic steps involving just one logical constant [Prawitz]

7. Existence / B. Change in Existence / 4. Events / c. Reduction of events

8205	Explaining events just by bodies can't explain two events identical in space-time [Quine]

10. Modality / A. Necessity / 11. Denial of Necessity

8206	Necessity could be just generalisation over classes, or (maybe) quantifying over possibilia [Quine]