Combining Texts

Ideas for 'Logic and Epistemology of Causal Relations', 'Logicism in the 21st Century' and 'System of Logic'

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3 ideas

10. Modality / A. Necessity / 2. Nature of Necessity
Necessity is what will be, despite any alternative suppositions whatever [Mill]
Necessity can only mean what must be, without conditions of any kind [Mill]
10. Modality / B. Possibility / 1. Possibility
What is true used to be possible, but it may no longer be so [Wright,GHv]