Combining Texts

All the ideas for 'Purifications (frags)', 'works' and 'Mathematics: Form and Function'

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2 ideas

1. Philosophy / A. Wisdom / 2. Wise People

15833

Tell cleverness from answers, but wisdom from questions [Mahfouz]

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

18189

ZFC could contain a contradiction, and it can never prove its own consistency [MacLane]