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

[Alex Shkotin <alex.shkotin@xxxxxxxxx>]

Robert,

have a look at https://sites.google.com/site/definitionsinontologies/

1) types are: definition of constant, of predicate, of function.

2) non-FOL def: 

VPC(p)(ob) ≝ 100*Volume_in(p,ob)/Volume(ob).

i.e. Volume Percentage Content of p in body ob is...

We define an operator VPC here as p is a substance predicate. Like water(ob) is true if body ob is water and only water.

3) of what?

Alex

2014-06-22 5:31 GMT+04:00 <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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