1. P. Boehner, ‘Bemerkungen zur Geschichte der De Morganschen Gesetze in der Scholastik’,Archiv für Philosophie
4 (1951) 145.
2. For editions and translations see the bibliography. For judgements on the importance of the Port-Royal Logic and of Jungius, see I. M. Bocheński,History of Formal Logic (trans, and ed. by Ivo Thomas), Notre Dame, Indiana, 1961, 257; W. and M. Kneale,The Development of Logic, Oxford 1962, 313; and H. Scholz,Geschichte der Logik, Berlin 1931, 4 If.
3. For editions and translations see the bibliography. For judgements on the importance of the Port-Royal Logic and of Jungius, see I. M. Bochenski,History of Formal Logic (trans, and ed. by Ivo Thomas), Notre Dame, Indiana, 1961, 257; W. and M. Kneale,The Development of Logic, Oxford 1962, 313; and H. Scholz,Geschichte der Logik, Berlin 1931, 4 If.
4. For editions and translations see the bibliography. For judgements on the importance of the Port-Royal Logic and of Jungius, see I. M. Bocheński,History of Formal Logic (trans, and ed. by Ivo Thomas), Notre Dame, Indiana, 1961, 257; W. and M. Kneale,The Development of Logic, Oxford 1962, 313; and H. Scholz,Geschichte der Logik, Berlin 1931, 4 If.
5. J. P. Mullally,The Summulae Logicales of Peter of Spain, Notre Dame, Indiana, 1945, lxxviiif.