According to Mill, "The effect of some particular fraction from an event such as a sub-duct is known by distorted induction, and the residue of the event is the effect of the remaining antidepressants." For example- We have a loaded vehicle. Let's weigh and pay attention to the weight. We already knew the weight of the car. By subtracting the weight of the car from the total weight of the loaded vehicle, we conclude that the difference is the weight of the load. Depending on the cause of one thing, it cannot be the cause of a different thing. When we are working with a complex set of phenomena, and we already know the cause of some of them, we conclude that the cause of residual or residual phenomena is to be found among the remaining antis accidents.

The method of residual is a special modification of the method difference. Because, the principle contained in both these methods is the same. If there are two instances that differ only in one situation that are present in one instance, and are absent in the other, then the condition in which the two groups differ alone is the cause of the other circumstances in which the two groups differ results alone. The difference between the two methods is that, in the method difference, the instance in which the condition does not arise is supplied by the experiment, while in the residuals of the method, that instance is supplied with the B deduction from the previous induction.