| Categorized Class |
Ordered Entity Ordered Entity is a class whose sub-types are classifed by an Class of Ordered Entity: it is the power instance of Class of Ordered Entity. Examples: |
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| Name | Description |
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Class of Ordered Entity |
Class of Ordered Entity is the Meta-Class (subtype of Class of Entity and instance of Meta-Class) of all power-type based Class of Entitys that follow a strict ordering of metalevels. |
First Order Entity |
A First Order Entity is a kind of Ordered Entity that is not itself a class (Class of Entity): it cannot have instances. The " First Order Entity" class is the powerinstance of First Order Class. First Order Entitys are the most common type of entities. The word "Individual" is sometimes used to designate particulars. In SysFEAT, the term Individual is reserved for particulars that have a spatio-temporal extent. Examples: . The set of numbers {1,2,3,4}. . The mathematical constant π (pi). . The English word "Tree" (as a specific string of characters in a specific language). . The Eiffel tower (31st March 1889 - ...). . Mount Vesuvius eruption (Aug. 24-25, A.D. 79). |