 According to Woodward &amp; Hitchcock, laws or generalizations in the special sciences do not hold under all interventions. They merely hold for a certain range of possible values (of those variable figuring in the law statement). By being non-strict the generalizations in the special sciences do not satisfy a condition that is traditionally associated with laws of nature, namely the condition of universality. Nonetheless, being invariant for a limited range of values is enough for a proposition to play a lawlike role in the sciences, as is argued in EG2. Woodward and Hitchcock (EG2, 184–189) develop further criteria and examples of determining the degree of invariance of a generalization \(G\) (e.g., comparing two generalizations \(G\) and \(G*, G\) might be more exact than \(G^*\) with respect to the same range of intended application; or \(G\) might be more or less sensitive to variations in the background conditions than \(G^*\) etc.).