ISRAELI, ISAAC BEN SALOMON (c. 940), Jew ish physician and philosopher, was born in Egypt, and became court physician at Kairawan. Constantine the African translated into Latin his medical works, including the popular treatise on Fevers, while Gerard of Cremona translated his Elements, an exposition of Aristotle's Physics, and his Book of Definitions explaining philosophical terms. In philosophy, Israeli had a pref erence for the Neoplatonism of Proclus and the Liber de Causis rather than for Aristotle, and a conspicuous absence of any avowed attitude to Jewish dogma and the Scriptures. Through
the labours of Gundissalinus he became very popular with the 13th century Scholastics who took from his Definitions the famous definition, veritas est adaequatio rei et intellectus. His Opera Omnia were published at Lyons in 1515.
See J. Gutimann, Die phil. Lehren des Isaak ben Salomon Israeli (Munster, I91i) and I. Husik, Hist. of Mediaeval Jewish Philosophy (New York, 1916).