Many fourteenth-century logicians took affirmative propositions to maintain that the subject term and the predicate term stand or supposit for the same. This is called the identity theory of predication by historians and praedicatio identica by Paul of Venice and others. The identity theory of predication was an important part of early fourteenth-century Trinitarian discussions as well, but what was called praedicatio identica by Duns Scotus and his followers in this context was something different. After some remarks on Scotus’s view (...) and its background, I shall analyse Adam Wodeham’s explanation of Scotus’s praedicatio identica and how he understood the assumptions pertaining to supposition in the Scotist approach. I also describe Wodeham’s own solution to Trinitarian sophisms, which did not deviate from the identity theory of predication. (shrink)

The focus of this article is the manner in which Thomas Ebendorfer of Hasselbach, a Viennese theologian lecturing on Book I of the Sentences in 1421, deals with the topic of virtus sermonis and the relation between theology, philosophy, and logic in his Prologue from the autograph MS Wien, Österreichische Nationalbibliothek, 4369 (ff. 7r–8v). By combining a double classification of each science (into acquisita vs. infusa) with a double perspective of their relation (temporal vs. natural), and by making a strong (...) claim for theology’s role in advancing new logical theories, Ebendorfer’s view reflects a progressive awareness of the distinction between theology and philosophy which, in turn, entails very different applications of virtus sermonis in the two sciences. An edition of the Prologue is provided in the Appendix. (shrink)