| 501 | x-bar1.3 | Barnes, Jonathan | The Law of Contradiction | da |
| 502 | X-lew2.1 | Lewry, Osmund | The liber sex principiorum, a supposedly porretanean work a study in ascription | da |
| 503 | X-hoe1.1 | Hoenen, M. J. F. M | The literary reception of Thomas Aquinas' view on the provability of the Eternity of the world in de la mares correctorium (1278 9) and the correctoria corruptorii (1279 ca 1286) | da |
| 504 | x-sol2.1 | Solon, T.P.M. | The Logic of Aquinas' Tertia Via | da |
| 505 | x-swe1.1 | Swenson, David F. | The Logical Significance of the Paradoxes of Zeno | da |
| 506 | X-ned1.1 | Nederman, Cary J. | The meaning of "Aristotelianism" in Medieval Moral and Political Thought | da |
| 507 | X-sch5.12 | Schabel C. | The Nicosia Franciscans vs. The Chapter of Nicosia Cathedral | da |
| 508 | X-hil1.1 | Hildegard von Bingen | The Origin of Fire, Music and Visions of Hildegard von Bingen | da |
| 509 | x-kin2.1 | McKinney, Ronald H. | The Origins of Modern DIalectics | da |
| 510 | X-dod1.1 | Dodds, E.R. | The Parmenides of Plato and the origin of the neoplatonic" One" | da |
