[ontolog-forum] Types of Formal (logical) Definitions in ontology

[rrovetto@xxxxxxxxxxx]

All,

1) How many types of formal (logical) definitions of terms/classes do you know of?

For example, a term can be defined in a genus-species form: An A is a B that C.

What others do you know of?

2) For ontologies, are there non-FOL definitions?
Are there definitions not based on syllogistic logic?

3) And what are the pro's and con's of each?

Thank you.

Robert

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