Combining Texts

Ideas for 'Summa totius logicae', 'Knowledge and the Philosophy of Number' and 'The Boundary Stones of Thought'

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5 ideas

10. Modality / A. Necessity / 5. Metaphysical Necessity

18816

Metaphysical modalities respect the actual identities of things [Rumfitt]

10. Modality / A. Necessity / 6. Logical Necessity

18825

S5 is the logic of logical necessity [Rumfitt]

10. Modality / B. Possibility / 1. Possibility

18824

Since possibilities are properties of the world, calling 'red' the determination of a determinable seems right [Rumfitt]

18828

If two possibilities can't share a determiner, they are incompatible [Rumfitt]

10. Modality / E. Possible worlds / 1. Possible Worlds / e. Against possible worlds

18821

Possibilities are like possible worlds, but not fully determinate or complete [Rumfitt]