Set theory is the branch of mathematics that studies sets, which are collections of elements. Let's start by studying the mathematical symbols used in this branch.
Symbols
: belongs | : exist |
: does not belong | : does not exist |
: is contained | : for all (or whatever) |
: not contained | : empty set |
: contains | N: set of natural numbers |
: Does not contain | Z : set of integers |
/: such that | Q: set of rational numbers |
: implies that | Q '= I: set of irrational numbers |
: if and only if | R: set of real numbers |