Combining Texts

All the ideas for 'The Dappled World', 'Symbolic Reasoning' and 'Predest.,God's foreknowledge and contingents'

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]

7. Existence / E. Categories / 5. Category Anti-Realism

16654

Our words and concepts don't always correspond to what is out there [William of Ockham]

14. Science / B. Scientific Theories / 1. Scientific Theory

17503

Theories can never represent accurately, because their components are abstract [Cartwright,N, by Portides]