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All the ideas for 'fragments/reports', 'Notes on John Wilkins' and 'Model Theory for Modal Logic I'
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3 ideas
1. Philosophy / D. Nature of Philosophy / 3. Philosophy Defined
23367
Even pointing a finger should only be done for a reason
[Epictetus]
4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / h. System S5
9560
S5 provides the correct logic for necessity in the broadly logical sense
[Fine,K]
9. Objects / D. Essence of Objects / 14. Knowledge of Essences
12694
Essence is the distinct thinkability of anything
[Leibniz]