Combining Texts

All the ideas for 'fragments/reports', 'The World' and 'Gentzen's Analysis of First-Order Proofs'

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7 ideas

1. Philosophy / D. Nature of Philosophy / 3. Philosophy Defined

23367

Even pointing a finger should only be done for a reason [Epictetus]

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]

12. Knowledge Sources / B. Perception / 2. Qualities in Perception / d. Secondary qualities

22593

Our sensation of light may not be the same as what produces the sensation [Descartes]

26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / f. Ancient elements

16569

The Hot, Cold, Wet and Dry of the philosophers need themselves to be explained [Descartes]

27. Natural Reality / A. Classical Physics / 1. Mechanics / b. Laws of motion

20964

Descartes said there was conservation of 'quantity of motion' [Descartes, by Papineau]