IBN SĪNĀ ON REDUCTIO AD ABSURDUM

This paper studies the analysis of reductio ad absurdum by Ibn Sı̄nā (known to the Latin West as Avicenna), who was born in 980 in a village near the Bactrian town of Balkh on the Silk Road, and died in 1037 after a career spent moving around within the present boundaries of Iran. References to Ibn Sı̄nā’s writings are to his Arabic texts listed in the bibliography, and are given in the format page.line. References to the text translated from Qiyās [14] at the end of this paper are marked with an asterisk ?.