Combining Texts

All the ideas for 'The Laws of Thought', 'The New Organon' and 'Reply to Fifth Objections'

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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]

8. Modes of Existence / E. Nominalism / 1. Nominalism / a. Nominalism

16639

Only individual bodies exist [Bacon]

9. Objects / B. Unity of Objects / 2. Substance / a. Substance

3626	Knowing the attributes is enough to reveal a substance [Descartes]

9. Objects / C. Structure of Objects / 2. Hylomorphism / c. Form as causal

16033

There are only individual bodies containing law-based powers, and the Forms are these laws [Bacon]

12. Knowledge Sources / A. A Priori Knowledge / 3. Innate Knowledge / a. Innate knowledge

3630	Our thinking about external things doesn't disprove the existence of innate ideas [Descartes]

14. Science / B. Scientific Theories / 2. Aim of Science

21950

Science must clear away the idols of the mind if they are ever going to find the truth [Bacon]

18. Thought / D. Concepts / 2. Origin of Concepts / c. Nativist concepts

3631	A blind man may still contain the idea of colour [Descartes]

28. God / B. Proving God / 2. Proofs of Reason / a. Ontological Proof

3639	Necessary existence is a property which is uniquely part of God's essence [Descartes]

3640	Possible existence is a perfection in the idea of a triangle [Descartes]