Similar to induction but predicated on a known or assumed relationary rule(s) and an observation(s) that contains at least one of the predicates(predictors) of the rule Another predicate(s) of the relationary rule is then generalized to the

observation due to the coincidence of the

other predicate(s) in both the

observation and the rule

This is commonly applied in police work to determine the initial suspects of a crime via means motive and opportunity

The most common forms of

logic systems built up through

**retroductive reasoning** involve or are related to complexity theory

## See also

## External links

Retroduction