Combining Texts
Ideas for
'Writing the Book of the World', 'Set Theory and Its Philosophy' and 'Sophistical Refutations'
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2 ideas
5. Theory of Logic / H. Proof Systems / 3. Proof from Assumptions
10703
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Supposing axioms (rather than accepting them) give truths, but they are conditional [Potter]
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5. Theory of Logic / H. Proof Systems / 4. Natural Deduction
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'Tonk' is supposed to follow the elimination and introduction rules, but it can't be so interpreted [Sider]
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