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Relationships
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inheritable relation |
The class of Relations whose properties can be inherited downward in the class hierarchy via the subrelation Predicate.
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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.
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antisymmetric relation | 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. |
| | binary predicate | A Predicate relating two items - its valence is two. |
| | economic relation | A class of Relations which are used to specify various economic measures, e.g. the GDP, the consumer price index, and the trade deficit. |
| | intransitive relation | A BinaryRelation ?REL is intransitive only if (?REL ?INST1 ?INST2) and (?REL ?INST2 ?INST3) imply not (?REL ?INST1 ?INST3), for all ?INST1, ?INST2, and ?INST3. |
| | irreflexive relation | Relation ?REL is irreflexive iff (?REL ?INST ?INST) holds for no value of ?INST. |
| | reflexive relation | Relation ?REL is reflexive iff (?REL ?INST ?INST) for all ?INST. |
| | symmetric relation | A BinaryRelation ?REL is symmetric just iff (?REL ?INST1 ?INST2) imples (?REL ?INST2 ?INST1), for all ?INST1 and ?INST2. |
| | transitive relation | A BinaryRelation ?REL is transitive if (?REL ?INST1 ?INST2) and (?REL ?INST2 ?INST3) imply (?REL ?INST1 ?INST3), for all ?INST1, ?INST2, and ?INST3. |
| | trichotomizing relation | A BinaryRelation ?REL is a TrichotomizingRelation just in case all ordered pairs consisting of distinct individuals are elements of ?REL. |
| | unary function | The Class of Functions that require a single argument. |
| Instances | angle of fire | angleOfFire is a relation linking a Shooting event with the angle between the Horizontal plane and the axial direction of the barrel of gun, mortar or heavy artillery. [Wikipedia] |
| | catalyst | A relation between a ChemicalProcess and a Substance that acts to accelerate or enable the ChemicalProcess. |
| | device OS | Instances of a Computer are intended to run versions of the given OperatingSystem. Note that this does not cover cases of a device that is hacked or subject to Jailbreaking in order to run a given OS that was not intended for the device. |
| | hardware type | (hardwareType ?TYPE ?COMPUTER) means that TYPE represents the computer vendor model name, as well as the version of the product. |
| | has account | (hasAccount ?User ?Account) holds if ?User is assigned the UserAccount ?Account. |
| | recovery key | A code that will allow a user to recover his or her password if the password is forgotten. It is essentially a password for the password. |
| | software version | softwareVersion is a VersionAttribute to the Proposition, ComputerProgram. |
| | suffers | The opposite of benefits. The Agent does not want the action to occur. |