Combining Texts

All the ideas for 'The Languages of Art', 'New Foundations for Mathematical Logic' and 'Symbolic Reasoning'

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 / 3. Types of Set / b. Empty (Null) Set

21548

The null class is the class with all the non-existents as its members [MacColl, by Lackey]

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

9879	NF has no models, but just blocks the comprehension axiom, to avoid contradictions [Quine, by Dummett]

21. Aesthetics / B. Nature of Art / 5. Art as Language

8113	Art is like understanding a natural language, and needs a grasp of a symbol system [Goodman, by Gardner]