Combining Texts

All the ideas for 'Paradoxes: Form and Predication', 'Boole calculus and the Concept script' and 'Set Theory and related topics (2nd ed)'

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 / e. Equivalence classes

8920	Equivalence relations are reflexive, symmetric and transitive, and classify similar objects [Lipschutz]

5. Theory of Logic / G. Quantification / 6. Plural Quantification

14235

Saying 'they can become a set' is a tautology, because reference to 'they' implies a collection [Cargile]

18. Thought / A. Modes of Thought / 6. Judgement / a. Nature of Judgement

18265

We don't judge by combining subject and concept; we get a concept by splitting up a judgement [Frege]