Combining Texts

All the ideas for 'Belief Truth and Knowledge', 'On 'Generation and Corruption'' and 'Investigations into Logical Deduction'

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4 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 / B. Perception / 7. Causal Perception

3900	Maybe experience is not essential to perception, but only to the causing of beliefs [Armstrong, by Scruton]

13. Knowledge Criteria / C. External Justification / 1. External Justification

4253	Externalism says knowledge involves a natural relation between the belief state and what makes it true [Armstrong]

26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / f. Ancient elements

16570

Elements are found last in dismantling bodies, and first in generating them [Albert of Saxony]