Combining Texts

All the ideas for 'Subjectivist's Guide to Objective Chance', 'Investigations into Logical Deduction' and 'A priori/A posteriori'

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

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3 ideas

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]

12. Knowledge Sources / A. A Priori Knowledge / 10. A Priori as Subjective

3913	Maybe imagination is the source of a priori justification [Casullo]

26. Natural Theory / D. Laws of Nature / 4. Regularities / b. Best system theory

9425	Lewis later proposed the axioms at the intersection of the best theories (which may be few) [Mumford on Lewis]