Combining Texts

All the ideas for 'Classical Cosmology (frags)', 'Ethics of Ambiguity' and 'Investigations into Logical Deduction'

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3 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]

23. Ethics / F. Existentialism / 3. Angst

20761

If existence is absurd it can never have a meaning [Beauvoir]

27. Natural Reality / E. Cosmology / 1. Cosmology

5994	Is the cosmos open or closed, mechanical or teleological, alive or inanimate, and created or eternal? [Robinson,TM, by PG]