Combining Texts

All the ideas for 'reports', 'A Pragmatic Conception of the A Priori' and 'The Laws of Thought'

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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 / 1. Overview of Logic

9358	There are several logics, none of which will ever derive falsehoods from truth [Lewis,CI]

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 / D. Assumptions for Logic / 2. Excluded Middle

9357	Excluded middle is just our preference for a simplified dichotomy in experience [Lewis,CI]

5. Theory of Logic / F. Referring in Logic / 1. Naming / a. Names

9364	Names represent a uniformity in experience, or they name nothing [Lewis,CI]

5. Theory of Logic / H. Proof Systems / 2. Axiomatic Proof

22277

Boole's method was axiomatic, achieving economy, plus multiple interpretations [Boole, by Potter]

10. Modality / A. Necessity / 8. Transcendental Necessity

3016	Even the gods cannot strive against necessity [Pittacus, by Diog. Laertius]

10. Modality / A. Necessity / 11. Denial of Necessity

9362	Necessary truths are those we will maintain no matter what [Lewis,CI]

12. Knowledge Sources / A. A Priori Knowledge / 7. A Priori from Convention

9365	We can maintain a priori principles come what may, but we can also change them [Lewis,CI]

18. Thought / E. Abstraction / 2. Abstracta by Selection

9361	We have to separate the mathematical from physical phenomena by abstraction [Lewis,CI]

26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / a. Scientific essentialism

9363	Science seeks classification which will discover laws, essences, and predictions [Lewis,CI]