Part II: Ontology

Introduction

Sowa (2000) has this to say about the word "ontology" (p. 492):

The subject of ontology is the study of the categories of things that exist or may exist in some domain. The product of such a study, called an ontology, is a catalog of the types of things that are assumed to exist in a domain of interest D from the perspective of a person who uses a language L for the purpose of talking about D.

We start with some philosophical considerations. Then we treat, at length, some core ideas pertaining to ontology. Then we look at lambda expressions, which are essential for understanding the application of ontology to conceptual graphs, which we finally look at.


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