The Law of Sufficient Reason is a Major Law of Formal Logic

Abstract

Of late I have read in earnest the article by Comrade Lin Mingjun et al. entitled "The Law of Sufficient Reason Is Not a Basic Law of Formal Logic" ("Lin's article" in the rest of this text) and Comrade Li Xiankun's article "The Position and Function of the Law of Sufficient Reason in Formal Logic" ("Li's article"). (These two articles both appeared in Philosophical Research, 1979, No. 3.) In this article I'd like to set forth my opinions as they differ from theirs.