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All the ideas for 'fragments/reports', 'On Euclidean Geometry' and 'The Foundations of Mathematics (2nd ed)'
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3 ideas
5. Theory of Logic / K. Features of Logics / 1. Axiomatisation
16886
The truth of an axiom must be independently recognisable
[Frege]
8. Modes of Existence / A. Relations / 4. Formal Relations / b. Equivalence relation
18465
An 'equivalence' relation is one which is reflexive, symmetric and transitive
[Kunen]
21. Aesthetics / C. Artistic Issues / 7. Art and Morality
468
Musical performance can reveal a range of virtues
[Damon of Ath.]