Math Symbols Reference

≠ ≤ ∞ ∂ ∫ ∑ — common math symbols, names and LaTeX.

Symbol	Name	LaTeX	Description
≠	Not equal	`\neq`	Inequality
≈	Approximately equal	`\approx`	Approximation
≡	Equivalent / identity	`\equiv`	Triple bar
≤	Less than or equal	`\leq`
≥	Greater than or equal	`\geq`
≪	Much less than	`\ll`
≫	Much greater than	`\gg`
∈	Element of	`\in`	Set membership
∉	Not an element of	`\notin`
∋	Contains as element	`\ni`
⊂	Proper subset of	`\subset`
⊆	Subset of (or equal)	`\subseteq`
⊃	Proper superset	`\supset`
⊇	Superset (or equal)	`\supseteq`
∪	Union	`\cup`
∩	Intersection	`\cap`
∅	Empty set	`\emptyset`
∞	Infinity	`\infty`
∂	Partial derivative	`\partial`
∇	Nabla / del	`\nabla`
∫	Integral	`\int`
∬	Double integral	`\iint`
∮	Contour integral	`\oint`
∑	Summation	`\sum`
∏	Product	`\prod`
√	Square root	`\sqrt{}`
∝	Proportional to	`\propto`
∀	For all	`\forall`
∃	There exists	`\exists`
¬	Negation / not	`\neg`
∧	Logical and	`\wedge`
∨	Logical or	`\vee`
⇒	Implies	`\Rightarrow`
⇔	If and only if	`\Leftrightarrow`
→	Maps to / arrow	`\to`
ℕ	Naturals	`\mathbb{N}`	Set of natural numbers
ℤ	Integers	`\mathbb{Z}`
ℚ	Rationals	`\mathbb{Q}`
ℝ	Reals	`\mathbb{R}`
ℂ	Complex numbers	`\mathbb{C}`

About this tool

Reference for commonly used math symbols — set theory, logic, calculus, number sets, equality and ordering.