Combining Texts

All the ideas for 'Isagoge ('Introduction')', 'Letter to Frege 29.12.1899' and 'talk'

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

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3 ideas

1. Philosophy / D. Nature of Philosophy / 1. Philosophy

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Philosophers are revealed by their fears [Billington]

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 / D. Universals / 1. Universals

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Are genera and species real or conceptual? bodies or incorporeal? in sensibles or separate from them? [Porphyry]