Combining Texts

All the ideas for 'Through the Looking Glass', 'The Laws of Thought' and 'Quodlibeta'

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9 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]

7. Existence / A. Nature of Existence / 3. Being / e. Being and nothing

21982

I only wish I had such eyes as to see Nobody! It's as much as I can do to see real people. [Carroll,L]

7. Existence / E. Categories / 3. Proposed Categories

16657

Substance, Quantity and Quality are real; other categories depend on those three [Henry of Ghent]

8. Modes of Existence / A. Relations / 1. Nature of Relations

16658

The only reality in the category of Relation is things from another category [Henry of Ghent]

8. Modes of Existence / B. Properties / 8. Properties as Modes

16645

Accidents are diminished beings, because they are dispositions of substance (unqualified being) [Henry of Ghent]

11. Knowledge Aims / C. Knowing Reality / 3. Idealism / b. Transcendental idealism

22012

Kant says things-in-themselves cause sensations, but then makes causation transcendental! [Henry of Ghent, by Pinkard]