Combining Texts

All the ideas for 'Science and Method', 'A world of truthmakers?' and 'Symbolic Reasoning'

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3 ideas

3. Truth / B. Truthmakers / 6. Making Negative Truths

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If it were true that nothing at all existed, would that have a truthmaker? [Lewis]

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

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The null class is the class with all the non-existents as its members [MacColl, by Lackey]

6. Mathematics / A. Nature of Mathematics / 2. Geometry

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One geometry cannot be more true than another [Poincaré]