 It does no good to revise the claim to say that no generalization believed to be accidental is capable of confirmation. About the third-son case, one would know that the generalization, even if true, would not be a law. The discussion continues. Frank Jackson and Robert Pargetter have proposed an alternative connection between confirmation and laws on which certain counterfactual truths must hold: observation of As that are F-and-B confirms that all non-F As are Bs only if the As would still have been both A and B if they had not been F. (This suggestion is criticized by Elliott Sober 1988, 97–98.) Lange (2000, 111–142) uses a different strategy. He tries to refine further the relevant notion of confirmation, characterizing what he takes to be an intuitive notion of inductive confirmation, and then contends that only generalizations that are not believed not to be lawlike can be (in his sense) inductively confirmed.