Intelligent control systems 17 Fuzzy logic 16 Creative thinking 14 Fuzzy systems 14 Critical thinking 12 Programmable controllers 11 Logic design 9 Thought and thinking 9 Digital electronics 8 Logic circuits 8 Design and construction 6 Programmable logic devices 6 Teaching 6 Aids and devices 5 Computer programming 5 Data processing 5 Design 5 Logic 5 Computer arithmetic 4 Electric motors 4 Electronic circuit design 4 Logic, Symbolic and mathematical 4 Tanks 4 Electronic digital computers 3 Intelligence levels 3 Quality control 3 Students 3 Study and teaching 3 Air conditioning 2 Automatic control 2