Combining Philosophers

All the ideas for Sigmund Freud, George Boole and Timon

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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]

13. Knowledge Criteria / E. Relativism / 3. Subjectivism

2975	That honey is sweet I do not affirm, but I agree that it appears so [Timon]

15. Nature of Minds / B. Features of Minds / 2. Unconscious Mind

3488	Freud treats the unconscious as intentional and hence mental [Freud, by Searle]

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

5689	Freud and others have shown that we don't know our own beliefs, feelings, motive and attitudes [Freud, by Shoemaker]

18. Thought / A. Modes of Thought / 3. Emotions / a. Nature of emotions

23950

Freud said passions are pressures of some flowing hydraulic quantity [Freud, by Solomon]

22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / e. Human nature

22344

Freud is pessimistic about human nature; it is ambivalent motive and fantasy, rather than reason [Freud, by Murdoch]