Combining Texts

All the ideas for 'Through the Looking Glass', 'The Laws of Thought' and 'The Problem of Knowledge'

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

---

11 ideas

2. Reason / F. Fallacies / 1. Fallacy

19463

Induction assumes some uniformity in nature, or that in some respects the future is like the past [Ayer]

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 / 3. Being / e. Being and nothing

21982

I only wish I had such eyes as to see Nobody! It's as much as I can do to see real people. [Carroll,L]

11. Knowledge Aims / B. Certain Knowledge / 5. Cogito Critique

19461

Knowing I exist reveals nothing at all about my nature [Ayer]

19459

To say 'I am not thinking' must be false, but it might have been true, so it isn't self-contradictory [Ayer]

19460

'I know I exist' has no counterevidence, so it may be meaningless [Ayer]

14. Science / A. Basis of Science / 6. Falsification

19464

We only discard a hypothesis after one failure if it appears likely to keep on failing [Ayer]

14. Science / C. Induction / 2. Aims of Induction

19462

Induction passes from particular facts to other particulars, or to general laws, non-deductively [Ayer]