Combining Texts

All the ideas for 'fragments/reports', 'The Laws of Thought' and 'Essence and Accident'

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11 ideas

4. Formal Logic / B. Propositional Logic PL / 1. Propositional Logic

8083	Boole applied normal algebra to logic, aiming at an algebra of thought [Boole, by Devlin]

7727	Boole's notation can represent syllogisms and propositional arguments, but not both at once [Boole, by Weiner]

5. Theory of Logic / A. Overview of Logic / 2. History of Logic

8686	Boole made logic more mathematical, with algebra, quantifiers and probability [Boole, by Friend]

5. Theory of Logic / H. Proof Systems / 2. Axiomatic Proof

22277

Boole's method was axiomatic, achieving economy, plus multiple interpretations [Boole, by Potter]

8. Modes of Existence / C. Powers and Dispositions / 6. Dispositions / b. Dispositions and powers

12312

The real essence of a thing is its powers, or 'dispositional properties' [Copi]

9. Objects / D. Essence of Objects / 8. Essence as Explanatory

10937

Essential properties are the 'deepest' ones which explain the others [Copi, by Rami]

9. Objects / D. Essence of Objects / 13. Nominal Essence

12308

In modern science, nominal essence is intended to be real essence [Copi]

9. Objects / E. Objects over Time / 11. End of an Object

12303

Within the four types of change, essential attributes are those whose loss means destruction [Copi]

21. Aesthetics / C. Artistic Issues / 7. Art and Morality

468	Musical performance can reveal a range of virtues [Damon of Ath.]

26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / a. Scientific essentialism

12307

Modern science seeks essences, and is getting closer to them [Copi]

26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / d. Knowing essences

12310

Real essences are scientifically knowable, but so are non-essential properties [Copi]