Combining Texts

Ideas for 'Does Emp.Knowledge have Foundation?', 'Essays on Active Powers 1: Active power' and 'Logic for Philosophy'

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3 ideas

10. Modality / A. Necessity / 3. Types of Necessity

13721

'Strong' necessity in all possible worlds; 'weak' necessity in the worlds where the relevant objects exist [Sider]

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

13707

Maybe metaphysical accessibility is intransitive, if a world in which I am a frog is impossible [Sider]

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

13709

Logical truths must be necessary if anything is [Sider]