entity
physical
abstract
quantity
attribute
set or class
relation
single valued relation
function
function quantity
unary function
unary constant functionquantity
time dependent quantity
one to one function
power set fn
front fn
back fn
abstraction fn
extension fn
probability fn
list length fn
property fn
absolute value fn
arc cosine fn
arc sine fn
arc tangent fn
ceiling fn
cosine fn
denominator fn
floor fn
imaginary part fn
integer square root fn
numerator fn
rational number fn
real number fn
reciprocal fn
round fn
signum fn
sine fn
square root fn
tangent fn
successor fn
predecessor fn
complement fn
generalized union fn
generalized intersection fn
cardinality fn
initial node fn
terminal node fn
begin node fn
end node fn
path weight fn
cut set fn
minimal cut set fn
kilo fn
mega fn
giga fn
tera fn
milli fn
micro fn
nano fn
pico fn
magnitude fn
wealth fn
begin fn
end fn
when fn
past fn
immediate past fn
future fn
immediate future fn
year fn
principal host fn
skin fn
organization fn
binary function
ternary function
quaternary function
continuous function
assignment fn
list fn
greatest common divisor fn
least common multiple fn
valence
unique identifier
age
width
distance
altitude
depth
monetary value
date
mother
father
total valued relation
partial valued relation
binary relation
probability relation
spatial relation
temporal relation
ternary relation
quaternary relation
quintary relation
list
predicate
variable arity relation
relation extended to quantities
proposition
graph
graph element