The Origins of Avasana's Logic

The logicians in the Islamic world were ready to challenge and openly criticize their indispensable author, Avasana. This goes against an assumption that has been made even by experts in the history of Arabic logic. The systems of Aristotle and Avasana are fine if you want to focus on arguments that consist of nothing but predications,. But there are plenty of valid arguments that are not of this form," he says.