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Single Idea 5998

[from 'fragments/reports' by Diodorus Cronus, in 10. Modality / A. Necessity / 10. Impossibility ]

Full Idea

Diodorus' Master Argument inferred that since what is past (i.e. true in the past) is necessary, and the impossible cannot follow from the possible, that therefore if something neither is nor ever will be the case, then it is impossible.

Gist of Idea

From the necessity of the past we can infer the impossibility of what never happens

Source

report of Diodorus Cronus (fragments/reports [c.300 BCE]) by Michael J. White - Diodorus Cronus

Book Reference

'Encyclopedia of Classical Philosophy', ed/tr. Zeyl,Donald J. [Fitzroy Dearborn 1997], p.185


A Reaction

The argument is, apparently, no longer fully clear, but it seems to imply determinism, or at least a rejection of the idea that free will and determinism are compatible. (Epictetus 2.19)