Aristotle - The Organon - index for ANALYTICA PRIORIA Book 1 Part 20
Both or only one of the premisses is problematic
In the last figure a syllogism is possible whether both or only one of the premisses is problematic.
First let the premisses be problematic and suppose that both A and B may possibly belong to every C.
created 1996/11/25 modified 2009/04/26