Combining Texts

All the ideas for 'Necessary Existents', 'fragments/reports' and 'Set Theory and related topics (2nd ed)'

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

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4 ideas

4. Formal Logic / F. Set Theory ST / 3. Types of Set / e. Equivalence classes

8920	Equivalence relations are reflexive, symmetric and transitive, and classify similar objects [Lipschutz]

15. Nature of Minds / A. Nature of Mind / 1. Mind / d. Location of mind

5987	Alcmaeon was the first to say the brain is central to thinking [Alcmaeon, by Staden, von]

19. Language / D. Propositions / 3. Concrete Propositions

19216

Propositions (such as 'that dog is barking') only exist if their items exist [Williamson]

29. Religion / D. Religious Issues / 2. Immortality / b. Soul

24043

Soul must be immortal, since it continually moves, like the heavens [Alcmaeon, by Aristotle]