Allan Bäck

Like Plato, Aristotle uses dialectic to interpret and analyze ordinary discourse as well as to ascend to the first principles of philosophy and science. At the same time he says that it is intellect ( noûs ) that apprehends the first principle. With al-Fārābī and Avicenna (Ibn Sīnā), dialectic becomes relegated to dealing with ordinary language. For them demonstration in an ideal language from principles apprehended by the intellect suffices for the philosopher