Combining Texts

All the ideas for 'Changes in Events and Changes in Things', 'On Sufficient Reason' and 'On the Concept of Number'

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

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5 ideas

2. Reason / B. Laws of Thought / 1. Laws of Thought

19404

Necessities rest on contradiction, and contingencies on sufficient reason [Leibniz]

6. Mathematics / C. Sources of Mathematics / 7. Formalism

22293

Hilbert said (to block paradoxes) that mathematical existence is entailed by consistency [Hilbert, by Potter]

7. Existence / D. Theories of Reality / 8. Facts / b. Types of fact

15201

That Queen Anne is dead is a 'general fact', not a fact about Queen Anne [Prior,AN]

26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / c. Essence and laws

19403

Each of the infinite possible worlds has its own laws, and the individuals contain those laws [Leibniz]

27. Natural Reality / D. Time / 2. Passage of Time / e. Tensed (A) series

22899

'Thank goodness that's over' is not like 'thank goodness that happened on Friday' [Prior,AN]