Combining Texts

All the ideas for 'Set Theory and related topics (2nd ed)', 'On Minerals' and 'In Praed.'

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3 ideas

4. Formal Logic / F. Set Theory ST / 3. Types of Set / e. Equivalence classes
Equivalence relations are reflexive, symmetric and transitive, and classify similar objects [Lipschutz]
9. Objects / B. Unity of Objects / 2. Substance / a. Substance
Substance is an intrinsic thing, so parts of substances can't also be intrinsic things [Duns Scotus]
9. Objects / C. Structure of Objects / 2. Hylomorphism / a. Hylomorphism
Substantial forms must exist, to explain the stability of metals like silver and tin [Albertus Magnus]