Counterinduction

In logic, counterinduction is the rule of inference that one should assume the opposite of what induction suggests. For example:

"The Sun has risen every day in the past, therefore I think that it will not rise tomorrow."

Most of the time when counterinduction is mentioned, it is not presented as a valid rule. Instead, it is given as a refutation of Max Black's proposed inductive justification of induction, since the counterinductive justification of counterinduction is formally identical to the inductive justification of induction. For further information, see Problem of induction.

Paul Feyerabend's anarchist theory popularized the notion of counterinduction.