Number Sets
The Set of positive integers and zero, {0, 1, 2, 3,...}
NN
Natural Numbers
<
less than
sum
Summation
|->
Maps to
alpha
Alpha
{...-3, -2, -1, 0, 1, 2, 3...}
ZZ
Integers
>
greater than
abs(x)
Absolute value of x
rArr
Implies
beta
Beta
{x| p/q, where p and q are integers}
Rational Numbers
<=
Less than or equal to
:.
Therefore
EE
There exists
theta
Theta
The set of positive real numbers
R+
!=
Not equal to
prop
Is proportional to
AA
For all
phi
Phi
The set of complex numbers
CC
>=
Greater than or equal to
in
Is an element of
<=>
if and only if
mu
Mu