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KB Term:
Sigma KEE - AsymmetricRelation
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asymmetric relation
A
BinaryRelation
is asymmetric if and only if it is both an
AntisymmetricRelation
and an
IrreflexiveRelation
.
Relationships
Parents
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
.
irreflexive relation
Relation
?REL is irreflexive iff (?REL ?INST ?INST) holds for no value of ?INST.
Children
case role
The
Class
of
Predicate
s relating the spatially distinguished parts of a
Process
.
CaseRole
s include, for example, the
agent
,
patient
or
destination
of an action, the flammable substance in a burning process, or the water that falls in rain.
propositional attitude
The
Class
of
IntentionalRelation
s where the
Agent
has awareness of a
Proposition
.
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Sigma version 3.0 is
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produced by
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