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KB:
SUMO
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HerbaceousPlant
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WoodyPlant
cb
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Formal Language:
OWL
SUO-KIF
TPTP
traditionalLogic
KB Term:
Sigma KEE - smaller
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B
C
D
E
F
G
H
I
J
K
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M
N
O
P
Q
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S
T
U
V
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X
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smaller
(
smaller
?OBJ1 ?OBJ2) means that ?OBJ1 is smaller, with respect to all
LengthMeasure
s, than ?OBJ2.
Relationships
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.
BinaryPredicate
A
Predicate
relating two items - its valence is two.
BinaryRelation
BinaryRelation
s are relations that are true only of pairs of things.
BinaryRelation
s 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
Relation
s 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
BinaryPredicate
s, 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
.
Predicate
s and
Function
s both denote sets of ordered n-tuples. The difference between these two
Class
es is that
Predicate
s cover formula-forming operators, while
Function
s cover term-forming operators.
SpatialRelation
The
Class
of
Relation
s 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
Entity
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Sigma version 3.0 is
open source software
produced by
Articulate Software
and its partners