Combining Texts

All the ideas for 'works', 'Letters to Leibniz' and 'On Simple Theories of a Complex World'

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4 ideas

4. Formal Logic / D. Modal Logic ML / 7. Barcan Formula

16519

No one can conceive of a possible substance, apart from those which God has created [Arnauld]

5. Theory of Logic / G. Quantification / 2. Domain of Quantification

17743

De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki]

14. Science / B. Scientific Theories / 1. Scientific Theory

21687

It seems obvious to prefer the simpler of two theories, on grounds of beauty and convenience [Quine]

21688

There are four suspicious reasons why we prefer simpler theories [Quine]