Combining Texts

All the ideas for 'fragments/reports', 'The Development of Logic' and 'The Theory of Knowledge'

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7 ideas

4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / f. Axiom of Infinity V

10051

The axiom of infinity is not a truth of logic, and its adoption is an abandonment of logicism [Kneale,W and M]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives

23476

Logical constants seem to be entities in propositions, but are actually pure form [Russell]

23477

We use logical notions, so they must be objects - but I don't know what they really are [Russell]

5. Theory of Logic / I. Semantics of Logic / 3. Logical Truth

18273

Logical truths are known by their extreme generality [Russell]

7. Existence / D. Theories of Reality / 8. Facts / d. Negative facts

22315

There can't be a negative of a complex, which is negated by its non-existence [Potter on Russell]

26. Natural Theory / A. Speculations on Nature / 5. Infinite in Nature

1748	Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius]

27. Natural Reality / G. Biology / 3. Evolution

5989	Archelaus said life began in a primeval slime [Archelaus, by Schofield]