Combining Texts

All the ideas for 'Later Letters to Dedekind', 'Hymn to Perfect Wisdom' and 'works'

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

4 ideas

1. Philosophy / A. Wisdom / 1. Nature of Wisdom
7911 Theory vanishes when one has obtained wisdom [Rahulabhadra]
4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / h. System S5
7791 The simplest of the logics based on possible worlds is Lewis's S5 [Lewis,CI, by Girle]
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]
10. Modality / A. Necessity / 2. Nature of Necessity
11002 Equating necessity with informal provability is the S4 conception of necessity [Lewis,CI, by Read]