Combining Texts

All the ideas for 'Principles of Theoretical Logic', 'Ethics and Language' and 'Humean metaphysics vs metaphysics of Powers'

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3 ideas

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

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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 / h. Expressivism

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Moral words have an inherited power from expressing attitudes in emotional situations [Stevenson,CL]

27. Natural Reality / D. Time / 2. Passage of Time / g. Time's arrow

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Causation is the power of one property to produce another, and this gives time its direction [Esfeld]