From My Notebooks Isaac Israeli (the Elder): Some Interesting Remarks on the Posterior Analytics in his Book on Fevers

In his Book on Fevers, Isaac Israeli, the “Neoplatonic Philosopher of the Early Tenth Century”—as he has been known since the landmark monograph by Alexander Altmann and Samuel M. Stern—makes some remarks that are of interest for the history of philosophy. Though these have not gone entirely unnoticed, they have not been discussed in any detail; the present communication seeks to do just that. The remarks consist of interpretations in a Pythagorean vein of some statements in Aristotle’s Posterior Analytics, which, as far as I can determine, are original with Israeli.