Combining Texts

All the ideas for 'Isagoge ('Introduction')', 'Later Letters to Dedekind' and 'Notes on John Wilkins'

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

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3 ideas

4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / a. Axioms for sets

17831

Cantor gives informal versions of ZF axioms as ways of getting from one set to another [Cantor, by Lake]

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]

9. Objects / D. Essence of Objects / 14. Knowledge of Essences

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Essence is the distinct thinkability of anything [Leibniz]