Combining Texts

All the ideas for 'fragments/reports', 'The Scientific Image' and 'Investigations into Logical Deduction'

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

---

5 ideas

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

13832

Natural deduction shows the heart of reasoning (and sequent calculus is just a tool) [Gentzen, by Hacking]

10. Modality / B. Possibility / 7. Chance

23900

Chance is compatible with necessity, and the two occur together [Weil]

21. Aesthetics / A. Aesthetic Experience / 4. Beauty

23899

The secret of art is that beauty is a just blend of unity and its opposite [Weil]

25. Social Practice / E. Policies / 5. Education / b. Education principles

13304

Learned men gain more in one day than others do in a lifetime [Posidonius]

27. Natural Reality / D. Time / 1. Nature of Time / d. Time as measure

20820

Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus]