Combining Philosophers

Ideas for Critolaus, Lycophron and C.I. Lewis

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3 ideas

10. Modality / A. Necessity / 2. Nature of Necessity

11002

Equating necessity with informal provability is the S4 conception of necessity [Lewis,CI, by Read]

10. Modality / A. Necessity / 11. Denial of Necessity

9362	Necessary truths are those we will maintain no matter what [Lewis,CI]

10. Modality / B. Possibility / 8. Conditionals / a. Conditionals

7803	Modal logic began with translation difficulties for 'If...then' [Lewis,CI, by Girle]