Below is a table of the HTML Mathematical Character Set, which is part of the HTML Standard. All modern web browsers will translated these HTML symbols and display them properly in web pages.

HTML Mathematical Character Symbols

Symbol	Numeric	Alternate	Description
∀	∀	∀	for all
∂	∂	∂	partial differential
∃	∃	∃	there exists
∅	∅	∅	empty set (null set or diameter)
∇	∇	∇	nabla (backward difference)
∈	∈	∈	element of
∉	∉	∉	not an element of
∋	∋	∋	contains as member
∏	∏	∏	n-ary product (product sign)
∑	∑	∑	n-ary sumation
−	−	−	minus sign
∗	∗	∗	asterisk operator
√	√	√	square root (radical sign)
∝	∝	∝	proportional to
∞	∞	∞	infinity
∠	∠	∠	angle
∧	∧	∧	and
∨	∨	∨	or
∩	∩	∩	intersection (cap)
∪	∪	∪	union (cup)
∫	∫	∫	integral
∴	∴	∴	therefore
∼	∼	∼	tilde operator (varies with or similar to)
≅	≅	≅	approximately equal to
≈	≈	≈	almost equal to (asymptotic to)
≠	≠	≠	not equal to
≡	≡	≡	identical to
≤	≤	≤	less-than or equal to
≥	≥	≥	greater-than or equal to
⊂	⊂	⊂	subset of
⊃	⊃	⊃	superset of
⊄	⊄	⊄	not a subset of
⊆	⊆	⊆	subset of or equal to
⊇	⊇	⊇	superset of or equal to
⊕	⊕	⊕	circled plus (direct sum)
⊗	⊗	⊗	circled times (vector product)
⊥	⊥	⊥	up tack (orthogonal to or perpendicular)
⊦	⊦	&8870;	assertion
⋅	⋅	⋅	dot operator

Miscellaneous Technical Symbols

Symbol	Numeric	Alternate	Description
⌈	⌈	⌈	left ceiling (apl upstile)
⌉	⌉	⌉	right ceiling
⌊	⌊	⌊	left floor (apl downstile)
⌋	⌋	⌋	right floor
〈	〈	⟨	left-pointing angle bracket
〉	〉	⟩	right-pointing angle bracket
ƒ	ƒ	ƒ	Latin small f with hook
′	′	′	prime (minutes or feet)
″	″	″	double prime (seconds or =inches)
‾	‾	‾	overline (spacing overscore)
⁄	⁄	⁄	fraction slash

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