Combining Texts

All the ideas for 'Science and Method', 'A Problem about Substitutional Quantification?' 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]

5. Theory of Logic / G. Quantification / 4. Substitutional Quantification

10792

The substitutional quantifier is not in competition with the standard interpretation [Kripke, by Marcus (Barcan)]

6. Mathematics / A. Nature of Mathematics / 2. Geometry

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One geometry cannot be more true than another [Poincaré]