This is metadata for the pdf of the same name. Title: The Role of Logic and Ontology In Language and Reasoning By: John F. Sowa "This article is a slightly revised preprint of Chapter 11 in Theory and Applications of Ontology: Philosophical Perspectives, edited by R. Poli & J. Seibt, Berlin: Springer, pp. 231-263, 2010." However, it also looks like an excerpt from his year 2000 KR Book. ==================================== For example, KR Book 6 Knowledge Soup 6.5 Theories, Models, and the World Figure 6.10 World Model Theory p 383/594 is the same figure as The Role of Logic and Ontology In Language and Reasoning 6. Formal Reasoning Figure 7 World Model Theory p 19/28 ==================================== For example, KR Book 6 Knowledge Soup 6.6 Semiotics Figure 6.14 Pierce's three trichotomies of signs p 397/594 is the same figure as The Role of Logic and Ontology In Language and Reasoning 6. Formal Reasoning Figure 2 Pierce's triple trichotomy p 6/28 ==================================== ==================================== ==================================== ==================================== ==================================== ==================================== ====================================