SCIENCETIMES, which is run by Chinese Academy of Sciences, Chinese Academy of Engineering and National Natural Science Foundation of China, published the following report on 19th,April:

the study of Extenics gets fruits after 28 years

Academician Wu Wenjun etc. called it as “an original subject full of profound meaning founded by scientist of China”

Guangzhou, reported on 18th,April(journalist Li Jiewei, Liu Dongfeng)

The Appraisal Committee, which was leaded by senior Academician Wu Wenjun of Chinese Academy of Sciences and Academician Li Youping of Chinese Academy of Engineering, highly appraised Extenics, which was founded by Researcher Cai wen of Guangdong University of Technology. They considered unanimously that Cai wen etc. had established a new subject, Extenics, which betrides philosophy, maths and engineering science through 20-year continuous study. Extenics is an original subject full of profound meaning founded by scientist of China. A few days ago, Researcher Cai wen, who is the superintendent of Researcher Institute of Extension Engineering, GDUT, and Researcher Yang Chunyan, who is the vice- superintendent, introduced its process of establishment and its application prospect to the journalists.

Cai wen etc. began to study Extenics in 1976. They experienced lots of difficulties during the course. Their monograph, Extension Theory and its Study of Application, summarized all kinds of contradictory phenomena and the methods dealing with them. A new knowledge was formed through formalization(represented with symbols), logiclization(can be reasoned) and mathematicaslization(can be quantified).

As we knew, National Natural Science Foundation and Natural Science Foundation of Guangdong Province supported Cai wen to study with 7 items from 1988. Now the fruit of study has matured. It represents the matter, thing and their relationship with formalized language. So it represents the rules, which are represented with natural language in philosophy, with symbolic language, and forms the formalized methods solving contradiction. It established system of basic theory and method to realize operation in computers.

According to the introduction, theory of matter-element, theory of extension set and extension logic are the three pillars of extension theory. The objects studied are represented with matter-element, affair-element and relation-element in theory of matter-element. Theory of extension set is a creation after cantor set and fuzzy set. It extends the concept of distance of real variable function, and introduced the dependent funcation which represents the change of quality of objective things. It provided qualified means to express the transformation of contradictory problems. Extension logic is the scientific integration of discriminated logic and formalized logic.

As we knew, the item provided basic theory and basic method to dealing with problems with computers in engineering field. It has been applied in Controlling & Detecting, Artificial Intelligence & Computer and Economy & Management, etc.. In Artificial Intelligence, this item established a new model representing information and knowledge, so provided an operable method for generating the strategies solving contradictory problems.

The authority concerned considered that no other people at home and abroad had done such deep similar job. The former original studies were done by Newton, Einstein etc., but no Chinese. The study engaged by Cai wen etc. “deserves support, development and encouragement”.

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