  With Ockham, the concept of sign becomes a central notion of logical theory. However, as a result of Ockham's focus on the propositional sign as the only sign relevant to logic, initially only a narrow section of semiotic topics were dealt with in logic. In contrast to Ockham, late scholastic terminist logic is characterized by an approach of discussing logico-semantic topics on the basis of a most general understanding of the pertinent vocabulary (e.g., terminus, significare, repraesentare, signum etc.). Due to this practice, topics of semiotic relevance, even though not of direct logical concern, began to accumulate at the margins of the logical discourse. The culmination point of this development is reached in the Paris school of John Major (John Mair, 1469–1547), the most important and most influential center of late-scholastic logical studies.[48]