Combining Philosophers

All the ideas for Eubulides, Hastings Rashdall and George Boole

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12 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]

5. Theory of Logic / L. Paradox / 1. Paradox

6007	If you know your father, but don't recognise your father veiled, you know and don't know the same person [Eubulides, by Dancy,R]

5. Theory of Logic / L. Paradox / 6. Paradoxes in Language / a. The Liar paradox

6006	If you say truly that you are lying, you are lying [Eubulides, by Dancy,R]

5. Theory of Logic / L. Paradox / 6. Paradoxes in Language / b. The Heap paradox ('Sorites')

6008	Removing one grain doesn't destroy a heap, so a heap can't be destroyed [Eubulides, by Dancy,R]

16. Persons / B. Nature of the Self / 2. Ethical Self

1457	Morality requires a minimum commitment to the self [Rashdall]

22. Metaethics / B. Value / 1. Nature of Value / e. Means and ends

6674	All moral judgements ultimately concern the value of ends [Rashdall]

23. Ethics / E. Utilitarianism / 6. Ideal Utilitarianism

6673	Ideal Utilitarianism is teleological but non-hedonistic; the aim is an ideal end, which includes pleasure [Rashdall]

28. God / B. Proving God / 2. Proofs of Reason / c. Moral Argument

1458	Conduct is only reasonable or unreasonable if the world is governed by reason [Rashdall]

1459	Absolute moral ideals can't exist in human minds or material things, so their acceptance implies a greater Mind [Rashdall, by PG]