Combining Texts

All the ideas for 'On the Moral and Legal State of Abortion', 'A General Principle to Explain Laws of Nature' and 'The Laws of Thought'

expand these ideas     |    start again     |     specify just one area for these texts

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7 ideas

1. Philosophy / D. Nature of Philosophy / 2. Invocation to Philosophy

19395

Philosophy is sanctified, because it flows from God [Leibniz]

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]

9. Objects / F. Identity among Objects / 1. Concept of Identity

19394

Inequality can be brought infinitely close to equality [Leibniz]

16. Persons / A. Concept of a Person / 1. Existence of Persons

20618

Persons must be conscious, reasoning, motivated, communicative, self-aware [Warren, by Tuckness/Wolf]