Special Characters in HTML ?

Many special symbols are used in HTML document that are known as character entities. HTML allows you to include them by writing an ampersand symbol (&) followed by a keyword or number and ends with semicolon (;). Some characters which are used in HTML are described in Table.

 

Char Number Entity Description
∀ ∀ FOR ALL
∂ ∂ PARTIAL DIFFERENTIAL
∃ ∃ THERE EXISTS
∅ ∅ EMPTY SETS
∇ ∇ NABLA
∈ ∈ ELEMENT OF
∉ ∉ NOT AN ELEMENT OF
∋ ∋ CONTAINS AS MEMBER
∏ ∏ N-ARY PRODUCT
∑ ∑ N-ARY SUMMATION

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