ABSTRACT
ABSTRACT: Over 30-odd years, the study of Extenics has been enriched, enhanced and improved from the proposal of matter-element to basic-element, problems to contradictory problems, extension set to basic-element extension set and other basic concepts; from extension transformation to extensible analysis and conjugate analysis, the establishment of extension set to formula of dependent function, exploration of extension reasoning to extension logic as well as the formation of extension theory. This paper briefly introduces how fundamental concepts and theories of Extenics have come into being and developed.
