Relationships
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Parents |
located |
(located ?OBJ1 ?OBJ2) means that ?OBJ1 is partlyLocated at ?OBJ2, and there is no part of ?OBJ1 that is not located at ?OBJ2.
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Children |
completelyFills | (completelyFills ?OBJ ?HOLE) means that some part of the Object ?OBJ fills the HoleRegion ?HOLE. Note that if (completelyFills ?OBJ1 ?HOLE) and (part ?OBJ1 ?OBJ2), then (completelyFills ?OBJ2 ?HOLE). A complete filler of (a part of) a hole is connected with everything with which (that part of) the hole itself is connected. A perfect filler of (a part of) a hole completely fills every proper part of (that part of) that hole. |
| properlyFills | (properlyFills ?OBJ ?HOLE)means that ?HOLE is properly (though perhaps incompletely) filled by ?OBJ, i.e. some part of ?HOLE is perfectly filled by ?OBJ. Note thatproperlyFills is the dual of completelyFills, and is so related to partiallyFills that ?OBJ properlyFills ?HOLE just in case ?OBJ partiallyFills every part of ?HOLE. (Thus, every perfect filler is both complete and proper in this sense). Every hole is connected with everything with which a proper filler of the hole is connected. Every proper part of a perfect filler of (a part of) a hole properly fills (that part of) that hole. |
Instances | Abstract | Properties or qualities as distinguished from any particular embodiment of the properties/qualities in a physical medium. Instances of Abstract can be said to exist in the same sense as mathematical objects such as sets and relations, but they cannot exist at a particular place and time without some physical encoding or embodiment. |
| AntisymmetricRelation | BinaryRelation ?REL is an AntisymmetricRelation if for distinct ?INST1 and ?INST2, (?REL ?INST1 ?INST2) implies not (?REL ?INST2 ?INST1). In other words, for all ?INST1 and ?INST2, (?REL ?INST1 ?INST2) and (?REL ?INST2 ?INST1) imply that ?INST1 and ?INST2 are identical. Note that it is possible for an AntisymmetricRelation to be a ReflexiveRelation. |
| AsymmetricRelation | A BinaryRelation is asymmetric if and only if it is both an AntisymmetricRelation and an IrreflexiveRelation. |
| BinaryPredicate | A Predicate relating two items - its valence is two. |
| BinaryRelation | BinaryRelations are relations that are true only of pairs of things. BinaryRelations are represented as slots in frame systems. |
| Entity | The universal class of individuals. This is the root node of the ontology. |
| InheritableRelation | The class of Relations whose properties can be inherited downward in the class hierarchy via the subrelation Predicate. |
| IrreflexiveRelation | Relation ?REL is irreflexive iff (?REL ?INST ?INST) holds for no value of ?INST. |
| Predicate | A Predicate is a sentence-forming Relation. Each tuple in the Relation is a finite, ordered sequence of objects. The fact that a particular tuple is an element of a Predicate is denoted by '(*predicate* arg_1 arg_2 .. arg_n)', where the arg_i are the objects so related. In the case of BinaryPredicates, the fact can be read as `arg_1 is *predicate* arg_2' or `a *predicate* of arg_1 is arg_2'. |
| Relation | The Class of relations. There are two kinds of Relation: Predicate and Function. Predicates and Functions both denote sets of ordered n-tuples. The difference between these two Classes is that Predicates cover formula-forming operators, while Functions cover term-forming operators. |
| SpatialRelation | The Class of Relations that are spatial in a wide sense. This Class includes mereological relations and topological relations. |
| TotalValuedRelation | A Relation is a TotalValuedRelation just in case there exists an assignment for the last argument position of the Relation given any assignment of values to every argument position except the last one. Note that declaring a Relation to be both a TotalValuedRelation and a SingleValuedRelation means that it is a total function. |
| TransitiveRelation | A BinaryRelation ?REL is transitive if (?REL ?INST1 ?INST2) and (?REL ?INST2 ?INST3) imply (?REL ?INST1 ?INST3), for all ?INST1, ?INST2, and ?INST3. |
Belongs to Class
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Entity |
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