Combining Texts

All the ideas for 'Papancasudani', 'Investigations into Logical Deduction' and 'De primae philosophiae emendatione'

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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]

9. Objects / B. Unity of Objects / 2. Substance / a. Substance

12716

The concept of forces or powers best reveals the true concept of substance [Leibniz]

25. Social Practice / F. Life Issues / 1. Causing Death

7907	Human killing is worse if the victim is virtuous [Buddhaghosa]