Columbia subject headings:
Duns Scotus, John, approximately 1266-1308. Ordinatio. IV.
Metaphysics--History--Sources.
Modality (Logic)--History--Sources.
Philosophical theology--History--Sources.
Philosophy, Medieval.
Harvard subject headings:
Duns Scotus, John, approximately 1266-1308. Ordinatio IV.
Metaphysics--History--Sources.
Modality (Logic)--History--Sources.
Philosophical theology--History--Sources.
Philosophy, Medieval.
Princeton subject headings: