Ancient Greek
Logic: Aristotle
Beginning Modern Logic: Leibniz
Scientific articles on formal aspects of Ancient Western and Indian Logic
©
Klaus Glashoff
Medieaval Indian Logic: Dignaga
Quotation of the day:
"The syllogistic of Aristotle is a system the exactness of which surpasses even the exactness of a mathematical theory, and this is its everlasting merit."
Jan Lukasiewicz