Combining Texts

All the ideas for 'fragments/reports', 'Some Puzzles of Ground' and 'Principles of Theoretical Logic'

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

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5 ideas

4. Formal Logic / C. Predicate Calculus PC / 1. Predicate Calculus PC

17750

The first clear proof of the consistency of the first order predicate logic was in 1928 [Hilbert/Ackermann, by Walicki]

4. Formal Logic / E. Nonclassical Logics / 3. Many-Valued Logic

14263

Strong Kleene disjunction just needs one true disjunct; Weak needs the other to have some value [Fine,K]

7. Existence / C. Structure of Existence / 1. Grounding / a. Nature of grounding

14262

Formal grounding needs transitivity of grounding, no self-grounding, and the existence of both parties [Fine,K]

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]

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

24043

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