For those who endorse irrealist options in any of these areas, there would seem to be no tension with methodological naturalism. After all, irrealist analyses deny that there is any substantial knowledge to be had in mathematics, modality or morality, and so will not think of object-level claims in these areas as themselves contributing to philosophy. (This is consistent with thinking that a meta-understanding of the workings of mathematical, modal or moral discourse is important to philosophy; but then there seems no reason why such a meta-understanding should be problematic for methodological naturalism.)