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In the "Problem of Future Contingents" section, it states that: ″This theory approached the doctrine of fate maintained by the Stoics, and Chrysippus is said to have written a work, On Possibility, (Greek: περὶ δυνατῶν), against the views of Diodorus.″
What I do not understand is why Chrysippus' work would have been AGAINST the views of Diodorus? Chrysippus was a famous Stoic philosopher who, among other things, expanded upon Diodorus' propositional logic. So, why would Chrysippus disagree with Diodorus in what seems to be a fundamental point? I think that there might be a mistake here, but I cannot say for sure because I am unfamiliar with the details of the texts that are referenced. If anybody is familiar with Chrysippus' "On Possibility", then please help resolve this question.IonNerd (talk) 01:40, 17 August 2009 (UTC)IonNerd[reply]
Yep, you've noticed what a garbled mess this page is. It's a problem I'm afraid of using the venerable Dictionary of Greek and Roman Biography and Mythology to write these pages. I've had a look at Diogenes Laërtius, vii. 191, and there is no reference to a book called "On Possibility against the views of Diodorus," instead there's a book called "On Judgements of Possibility, addressed to Clitus," so that assertion may be wrong. It does appear however, from Cicero and Epictetus, that Chrysippus did argue against Diodorus, specifically on the question of what's possible. Diodorus maintained that the possible is either what is true or what will be true, but Chrysippus argued that even though something is not true and may never be true, it may nevertheless be possible. I've made a minor modification to the page, but the whole thing really needs expanding with modern sources. Singinglemon (talk) 20:58, 17 August 2009 (UTC)[reply]