Combining Philosophers

All the ideas for Anaxarchus, Albert of Saxony and George Boole

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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 / 2. Types of Existence

16664

Everything that exists is either a substance or an accident [Albert of Saxony]

9. Objects / E. Objects over Time / 6. Successive Things

16703

God could make a successive thing so that previous parts cease to exist [Albert of Saxony]

16699

Successive entities just need parts to succeed one another, without their existence [Albert of Saxony]

13. Knowledge Criteria / D. Scepticism / 1. Scepticism

3061	Anaxarchus said that he was not even sure that he knew nothing [Anaxarchus, by Diog. Laertius]

26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / f. Ancient elements

16570

Elements are found last in dismantling bodies, and first in generating them [Albert of Saxony]