Combining Texts

All the ideas for 'Set Theory and related topics (2nd ed)', 'Reply to Fourth Objections' and 'Experimental Researches in Electricity'

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


3 ideas

4. Formal Logic / F. Set Theory ST / 3. Types of Set / e. Equivalence classes
Equivalence relations are reflexive, symmetric and transitive, and classify similar objects [Lipschutz]
17. Mind and Body / E. Mind as Physical / 6. Conceptual Dualism
The concept of mind excludes body, and vice versa [Descartes]
27. Natural Reality / B. Modern Physics / 2. Electrodynamics / b. Fields
Faraday's single field of variable forces introduces a criterion of Unity into what is ultimate [Faraday, by Harré/Madden]