Combining Texts

All the ideas for 'fragments/reports', 'The Principles of Chemistry' and 'Barcan Formulae'

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6 ideas

4. Formal Logic / D. Modal Logic ML / 7. Barcan Formula

15380

Barcan:nothing comes into existence; Converse:nothing goes out; Both:domain is unchanging [Vervloesem]

9. Objects / C. Structure of Objects / 6. Constitution of an Object

6019	If someone squashed a horse to make a dog, something new would now exist [Mnesarchus]

27. Natural Reality / B. Modern Physics / 4. Standard Model / a. Concept of matter

17402

Mendeleev saw three principles in nature: matter, force and spirit (where the latter seems to be essence) [Mendeleev, by Scerri]

27. Natural Reality / F. Chemistry / 2. Modern Elements

17399

Elements don't survive in compounds, but the 'substance' of the element does [Mendeleev]

27. Natural Reality / F. Chemistry / 3. Periodic Table

17400

Mendeleev focused on abstract elements, not simple substances, so he got to their essence [Mendeleev, by Scerri]

17401

Mendeleev had a view of elements which allowed him to overlook some conflicting observations [Mendeleev]