Combining Texts

All the ideas for 'Necessary Existents', 'Gentzen's Analysis of First-Order Proofs' and 'Interview with Baggini and Stangroom'

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

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6 ideas

1. Philosophy / D. Nature of Philosophy / 5. Aims of Philosophy / e. Philosophy as reason

6851	We overvalue whether arguments are valid, and undervalue whether they are interesting [Monk]

5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic

13831

Logic is based on transitions between sentences [Prawitz]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives

13825

Natural deduction introduction rules may represent 'definitions' of logical connectives [Prawitz]

5. Theory of Logic / H. Proof Systems / 4. Natural Deduction

13823

In natural deduction, inferences are atomic steps involving just one logical constant [Prawitz]

19. Language / D. Propositions / 3. Concrete Propositions

19216

Propositions (such as 'that dog is barking') only exist if their items exist [Williamson]

22. Metaethics / A. Ethics Foundations / 1. Nature of Ethics / c. Purpose of ethics

6850	Wittgenstein pared his life down in his search for decency [Monk]