Re: One-To-One Relationships

David Cressey wrote:

>If a proposition concerning the real world is stated in plain English,
>rather than some formal way, there are going to be some nouns in the plain
>English. Those nouns are going to have referents. Those referents can be
>called "entities". They can also be called "things" or "objects". Whatever
>you call them, there will be objections.

But, as much as I appreciate your leaping in defense of entities: that is subtly beside the point. This discussion is about whether entities are useful, or make sense, as *language* constructs. ER modeling says yes, classical logic and relational modeling say no.

-- 
Reinier