Combining Texts

All the ideas for 'works', 'De Cive' and 'Principles of Theoretical Logic'

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3 ideas

4. Formal Logic / C. Predicate Calculus PC / 1. Predicate Calculus PC

17750

The first clear proof of the consistency of the first order predicate logic was in 1928 [Hilbert/Ackermann, by Walicki]

22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / e. Human nature

7667	There are two sides to men - the pleasantly social, and the violent and creative [Diderot, by Berlin]

25. Social Practice / E. Policies / 1. War / c. Combatants

23609

I act justly if I follow my Prince in an apparently unjust war, and refusing to fight would be injustice [Hobbes]