Mathematical Notation

Sets

Set: {x:P(x)}{ x : P(x) }

Where xx is an element and P(x)P(x) is a condition on xx.

Given That (Rule or Pattern or Condition): "::" or "∣|"

Subsets: ⊆\subseteq

Strict Subset: ⊂\subset

Element: ∈\in

Common Sets

Empty Set: ∅\emptyset

Natural Numbers: N\mathbb{N}

Integers: Z\mathbb{Z}

Rational Numbers: Q\mathbb{Q}

Real Numbers: R\mathbb{R}

Set Operations

Union: ∪\cup

Intersection: ∩\cap

Cartesian-Product: ×\times

Set Equality:

A=B  ⟺  A⊆B and B⊆AA = B \iff A \subseteq B \text{ and } B \subseteq A

General

Such That: "s.t."

There Exists: ∃\exists

For All: ∀\forall

Logic

Proposition: "p" - A statement that is either True or False

Implies: ⇒\Rightarrow

If and Only if / Equivalent:   ⟺  \iff