Combining Texts

All the ideas for 'Fragments of Anaxagoras', 'New Foundations for Mathematical Logic' and 'Foundations of Two-Dimensional Semantics'

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2 ideas

4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / a. Axioms for sets
NF has no models, but just blocks the comprehension axiom, to avoid contradictions [Quine, by Dummett]
19. Language / C. Assigning Meanings / 10. Two-Dimensional Semantics
'Water' is two-dimensionally inconstant, with different intensions in different worlds [Chalmers, by Sider]