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All the ideas for '04: Gospel of St John', 'Investigations into Logical Deduction' and 'Sources of Knowledge of Mathematics'

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4 ideas

2. Reason / A. Nature of Reason / 2. Logos

6294	In the beginning was the Word, and the Word was with God, and the word was God [John]

3. Truth / A. Truth Problems / 2. Defining Truth

8821	Jesus said he bore witness to the truth. Pilate asked, What is truth? [John]

5. Theory of Logic / H. Proof Systems / 4. Natural Deduction

13832

Natural deduction shows the heart of reasoning (and sequent calculus is just a tool) [Gentzen, by Hacking]

6. Mathematics / C. Sources of Mathematics / 6. Logicism / d. Logicism critique

9545	Late in life Frege abandoned logicism, and saw the source of arithmetic as geometrical [Frege, by Chihara]