Combining Texts

All the ideas for 'fragments/reports', 'Elucidation of some points in E.Schrder' and 'Types and Ontology'

expand these ideas     |    start again     |     specify just one area for these texts

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3 ideas

4. Formal Logic / F. Set Theory ST / 3. Types of Set / b. Empty (Null) Set

14238

A class is an aggregate of objects; if you destroy them, you destroy the class; there is no empty class [Frege]

7. Existence / E. Categories / 1. Categories

13127

Categories can't overlap; they are either disjoint, or inclusive [Sommers, by Westerhoff]

21. Aesthetics / C. Artistic Issues / 7. Art and Morality

468	Musical performance can reveal a range of virtues [Damon of Ath.]