Combining Texts

All the ideas for 'Preface to 'Dorian Gray'', 'Essays on Intellectual Powers 5: Abstraction' and 'Investigations into Logical Deduction'

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10 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]

8. Modes of Existence / D. Universals / 5. Universals as Concepts

23651

Universals are not objects of sense and cannot be imagined - but can be conceived [Reid]

8. Modes of Existence / E. Nominalism / 1. Nominalism / b. Nominalism about universals

23650

Only individuals exist [Reid]

8. Modes of Existence / E. Nominalism / 2. Resemblance Nominalism

23649

No one thinks two sheets possess a single whiteness, but all agree they are both white [Reid]

9. Objects / F. Identity among Objects / 1. Concept of Identity

11874

Real identity admits of no degrees [Reid]

18. Thought / A. Modes of Thought / 1. Thought

23652

We must first conceive things before we can consider them [Reid]

18. Thought / E. Abstraction / 1. Abstract Thought

23648

First we notice and name attributes ('abstracting'); then we notice that subjects share them ('generalising') [Reid]

21. Aesthetics / C. Artistic Issues / 6. Value of Art

7276	All art is quite useless [Wilde]

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

7274	Books are only well or badly written, not moral or immoral [Wilde]

7275	Having ethical sympathies is a bad mannerism of style in an artist [Wilde]