Combining Texts

All the ideas for 'fragments/reports', 'How to Russell a Frege-Church' and 'Gentzen's Analysis of First-Order Proofs'

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

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8 ideas

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 / F. Referring in Logic / 2. Descriptions / c. Theory of definite descriptions

11989

For Russell, expressions dependent on contingent circumstances must be eliminated [Kaplan]

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

13823

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

10. Modality / E. Possible worlds / 3. Transworld Objects / d. Haecceitism

11990

'Haecceitism' says that sameness or difference of individuals is independent of appearances [Kaplan]

9668	'Haecceitism' is common thisness under dissimilarity, or distinct thisnesses under resemblance [Kaplan]

11991

If quantification into modal contexts is legitimate, that seems to imply some form of haecceitism [Kaplan]

21. Aesthetics / C. Artistic Issues / 7. Art and Morality

468	Musical performance can reveal a range of virtues [Damon of Ath.]