HTML Character codes: Maths symbols

HTML codes for Mathematical Characters

For all
∀

Partial differential
∂

There exists
∃

Empty set
∅

(Unsupported in earlier versions on Internet Explorer, such as IE6)

Nabla
∇

Element of
∈

Not an element of
∉

(Unsupported in earlier versions on Internet Explorer, such as IE6)

Contains as member
∋

n-ary product
∏

n-ary summation
∑

Minus
−

Asterisk operator
∗

(Unsupported in earlier versions on Internet Explorer, such as IE6)

Square root
√

Proportional to
∝

Infinity
∞

Angle
∠

Logical and
∧

Logical or
∨

Union
∪

Integral
∫

Therefore
∴

Tilde operator
∼

Approximately equal to
≅

(Unsupported in earlier versions on Internet Explorer, such as IE6)

Almost equal to
≈

Not equal to
≠

Indentical to =
≡

Less than or equal to
≤

Greater than or equal to
≥

Subset of
⊂

Superset of
⊃

Not a subset of
(Unsupported in earlier versions on Internet Explorer, such as IE6)
⊄

Subset of or equal to
⊆

Superset of or equal to
⊇

Circled plus
⊕

Circled times
⊗

(Unsupported in earlier versions on Internet Explorer, such as IE6)

Up tack
⊥

Dot operator
⋅

(Unsupported in earlier versions on Internet Explorer, such as IE6)

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