 Consider examples (19) and (20) from Beaver (2010). These examples involve the factive verb "discover", and hence are expected to trigger a presupposition that its complement is true, i.e. that the addressee’s work is plagiarized. In (19), where "discover" is stressed, this presupposition seems to project, with the implication that, absent the T.A. finding out what’s going on, the speaker is prepared to overlook the plagiarism. In this case, we might say that what is at-issue is the question of whether the T.A. finds out about the plagiarism. However, in (20), where stress in on "plagiarized", it is far less clear whether the speaker believes the addressee’s work is plagiarized. This can be explained if stress on "plagiarized" is marking the proposition that the work is plagiarized as at-issue. So, the generalization in Definition 7 predicts that this proposition does not project.