Combining Texts

All the ideas for 'Intro to III: Quantifiers', 'Elucidation of some points in E.Schrder' and '14: Superstition'

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4 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]

5. Theory of Logic / G. Quantification / 4. Substitutional Quantification

9465	Substitutional universal quantification retains truth for substitution of terms of the same type [Jacquette]

9466	Nominalists like substitutional quantification to avoid the metaphysics of objects [Jacquette]

28. God / C. Attitudes to God / 5. Atheism

5957	Absurd superstitions make people atheist, not disharmony in nature [Plutarch]