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KB:
SUMO
Language:
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expectedYearOfGraduation
measuringListInterval
Formal Language:
OWL
SUO-KIF
TPTP
traditionalLogic
KB Term:
Skeleton
Sigma KEE - IntransitiveRelation
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
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X
Y
Z
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.
Relationships
Parents
binary relation
BinaryRelation
s are relations that are true only of pairs of things.
BinaryRelation
s are represented as slots in frame systems.
Instances
immediate instance
An object is an
immediateInstance
of a
Class
if it is an
instance
of the
Class
and it is not an
instance
of a proper subclass of
Class
.
immediate subclass
A
Class
?CLASS1 is an
immediateSubclass
of another
Class
?CLASS2 just in case ?CLASS1 is a subclass of ?CLASS2 and there is no other subclass of ?CLASS2 such that ?CLASS1 is also a subclass of it.
inverse
The inverse of a
BinaryRelation
is a
Relation
in which all the tuples of the original
Relation
are reversed. In other words, one
BinaryRelation
is the inverse of another if they are equivalent when their arguments are swapped.
meets temporally
(
meetsTemporally
?INTERVAL1 ?INTERVAL2) means that the terminal point of the
TimeInterval
?INTERVAL1 is the initial point of the
TimeInterval
?INTERVAL2.
member
A specialized common sense notion of part for uniform parts of
Collection
s. For example, each sheep in a flock of sheep would have the relationship of member to the flock.
parent
The general relationship of parenthood. (
parent
?CHILD ?PARENT) means that ?PARENT is a biological parent of ?CHILD.
penetrates
(penetrates ?OBJ1 ?OBJ2) means that ?OBJ1 is
connected
to ?OBJ2 along at least one whole dimension (length, width or depth).
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Sigma version 3.0.0-
0a80e6c8
(2026-05-12) is
open source software
produced by
Articulate Software
and its partners