set theory Flashcards
1
Q
set of natural numbers
A
N
2
Q
set of integers
A
Z
3
Q
set of rational numbers
A
Q
4
Q
set of real numbers
A
R
5
Q
set of positive integers
A
Z+
6
Q
set of negative integers
A
Z-
7
Q
set of positive real numbers
A
R+
