Symbolic reasoning derives conclusions by manipulating explicit symbols according to formal rules and logic. It suits problems where actions must satisfy stated constraints rather than merely match patterns in data. section 7.0
River-crossing puzzle
The Farmer-Wolf-Goat-Cabbage riddle requires finding a safe sequence of crossings while preventing the wolf from eating the goat and the goat from eating the cabbage. Explicit rules and constraints determine which action comes next. section 7.0
This approach addresses deductive reasoning, forward planning, and domain constraints that statistical models may miss. Data-driven systems can identify correlations, but diagnosis also requires medical concepts, disease mechanisms, biology, pathology, and clinical expertise. section 7.0


