This article is a brief review of Ibn Sīnā’s practical philosophy. It begins with a discussion of the Platonic, Aristotelian, and Neo-Platonic influences on Ibn Sīnā’s practical philosophy, as well as the influence of Fārābī and of Islamic religious teachings. The creative synthesis invented by Ibn Sīnā requires a particular view of the relation between religion and philosophy in such a manner ...

concept of a ‘real number’ in terms of length ratios. He also provided rules for the sum and product of such real numbers. There was a basic diVerence in viewpoint, however, between the Greek notion of a real number and the modern one, because the Greeks regarded the number system as basically ‘given’ to us, in terms of the notion of distance in physical space, so the problem was to try to asce...

Platonic arguments often have premises of a particular form which is misunderstood. These sentences look like universal generalizations, but in fact involve an implicit qua phrase makes them fundamentally different kind predication. Such general redoubled predications (girqps) are not expression Plato's proprietary views; they also very common everyday discourse. Seeing how work Plato can help ...