Combining Texts

All the ideas for 'A Puzzle about Belief', 'The Foundations of Mathematics (2nd ed)' and 'Letter to Frege 29.12.1899'

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

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3 ideas

3. Truth / G. Axiomatic Truth / 1. Axiomatic Truth

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If axioms and their implications have no contradictions, they pass my criterion of truth and existence [Hilbert]

8. Modes of Existence / A. Relations / 4. Formal Relations / b. Equivalence relation

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An 'equivalence' relation is one which is reflexive, symmetric and transitive [Kunen]

18. Thought / B. Mechanics of Thought / 5. Mental Files

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Puzzled Pierre has two mental files about the same object [Recanati on Kripke]