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KB:
SUMO
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traditionalLogic
KB Term:
Sigma KEE - LeapYear
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
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LeapYear
The
Class
of all leap years. These are years which are either (i.) evenly divisible by 4 and not by 100 or (ii.) evenly divisible by 400 (this latter case is known as a leap century).
Relationships
Parents
Year
The
Class
of all calendar
Year
s.
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Sigma web home
Suggested Upper Merged Ontology (SUMO) web home
Sigma version 2.99c (>= 2017/11/20) is
open source software
produced by
Articulate Software
and its partners