Altschuller's Contradiction Matrix and Bartini-Kuznetsov's LT - Table represent two different tools for solving inventive problems based on the same dialectical principle. It starts from premise that there are contradictions at root of every problem. Although both designed to make it easier come up with Ideal Final Solution (IFS), in practice they often optimal rather than ideal solutions. One ...

The Law of Non-Contradiction (hereafter: LNC) says that no contradiction can be true. But what is a contradiction? And what does it take for a contradiction to be true? As Patrick Grim [5] has pointed out, a quick look at the literature will reveal a large menagerie of different interpretations of the basic terms and, consequently, of LNC. Grim actually identifies as many as 240 different optio...

The paper focuses on the study of the contradiction between two Atanassov's intuitionistic fuzzy sets. First, taking into account some characterizations obtained in previous papers, some functions are defined in order to measure the degrees of contradiction. Besides the principal properties of these measures are pointed out. Finally, some results relating self-contradiction and contradiction be...