Formula Study Of Syllogism Is Invalid

Aristotle’s syllogistic logic theory is an important theory. It is a signs that make the development of logic to formalize. The history of the study of the syllogism is also too numerous to mention. However, it is hard to find the discourse of invalid syllogism type of syllogistic. In fact, Aristotle focused on this area in his book of organon, he found a way to confirm invalid syllogism, but his theory is not perfect. After Aristotle, Logicians tried to find a way to replenish Aristotle’s syllogistic. Lukasiewicz and Zhang Jialong put forward their own exclusion theory. Comparative analysis of these theories help us summarize the development of a syllogism and invalid context of evolution. I think this is an important complement to the syllogism research.