tag:blogger.com,1999:blog-3891434218564545511.post5586246825680319807..comments2024-03-28T13:23:50.623-05:00Comments on Alexander Pruss's Blog: Ockham on the paradoxes of entailmentAlexander R Prusshttp://www.blogger.com/profile/05989277655934827117noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-3891434218564545511.post-60437605335255551472010-05-27T22:36:34.941-05:002010-05-27T22:36:34.941-05:00Alex,
Do you think that modus ponens is 15?
To...Alex, <br /><br />Do you think that modus ponens is 15? <br /><br />To my ear, it sounds odd to identify inference rules with items that are truth-apt. Why not hold that 15 is true if and only if modus ponens is sound? (Loose analogy: an argument is valid if and only if its corresponding conditional is a logical truth.) <br /><br />Against Sextus, one might argue that rule circularity is not vicious in the case of logic.Douglashttps://www.blogger.com/profile/10234207984266825352noreply@blogger.com