Combining Texts

All the ideas for 'works (all lost)', 'Russell's Ontological Development' and 'The Laws of Thought'

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7 ideas

2. Reason / D. Definition / 12. Paraphrase

21699

Russell offered a paraphrase of definite description, to avoid the commitment to objects [Quine]

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]

19. Language / A. Nature of Meaning / 7. Meaning Holism / a. Sentence meaning

21700

Taking sentences as the unit of meaning makes useful paraphrasing possible [Quine]

21701

Knowing a word is knowing the meanings of sentences which contain it [Quine]