Combining Texts

All the ideas for 'Two Notions of Being: Entity and Essence', 'Confessions of a Philosopher' and 'The Laws of Thought'

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11 ideas

1. Philosophy / E. Nature of Metaphysics / 3. Metaphysical Systems

13917

Metaphysics aims to identify categories of being, and show their interdependency [Lowe]

1. Philosophy / E. Nature of Metaphysics / 6. Metaphysics as Conceptual

13919

Philosophy aims not at the 'analysis of concepts', but at understanding the essences of things [Lowe]

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]

9. Objects / B. Unity of Objects / 3. Unity Problems / d. Coincident objects

13918

Holes, shadows and spots of light can coincide without being identical [Lowe]

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

13921

All things must have an essence (a 'what it is'), or we would be unable to think about them [Lowe]

9. Objects / D. Essence of Objects / 14. Knowledge of Essences

13922

Knowing an essence is just knowing what the thing is, not knowing some further thing [Lowe]

9. Objects / F. Identity among Objects / 4. Type Identity

13920

Each thing has to be of a general kind, because it belongs to some category [Lowe]

16. Persons / C. Self-Awareness / 3. Limits of Introspection

3102	Why don't we experience or remember going to sleep at night? [Magee]