Ivan Boh affirms and Robert Pasnau denies that William Heytesbury holds merely true belief to be sufficient for knowledge in the broad sense. I argue that Boh is correct and Pasnau is mistaken, and that there is a long-running orthodox medieval tradition agreeing with Heytesbury about the conditions for knowledge. I offer a hypothesis about the origins, continuance and demise of that medieval tradition, and some remarks about the tradition's significance.

introduced the concept of effective demand in the nascent science of economics; his discussions of astronomy were acute enough to raise Duhem’s interest. Neither are Buridan’s credentials as a nominalist in doubt, although investigation into his precise relation to William of Ockham continues: he rejected all abstract entities, whether universals, common natures, the complexe significabile, or types above and beyond tokens; for Buridan, every thing which exists is a concrete individual. His anti-realism included an epistemological component as well, for Buridan (...) maintained that the source of all knowledge is experience. (shrink)