Combining Texts

All the ideas for 'works (all lost)', 'The Principles of Chemistry' and 'works'

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6 ideas

4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / a. Axioms for sets

9565	Zermelo made 'set' and 'member' undefined axioms [Zermelo, by Chihara]

3339	For Zermelo's set theory the empty set is zero and the successor of each number is its unit set [Zermelo, by Blackburn]

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]