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Null symbol

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(Redirected from Null sign (disambiguation))

Null symbol may refer to:

Null character, U+0000 <control-0000> , U+2400 ␀ SYMBOL FOR NULL (a single-character glyph "NUL")
Null sign (∅), the empty set
Null (SQL) (ω), a special marker and keyword NULL in SQL
Empty string (λ, Λ, or ε), in formal language theory

See also

Null (disambiguation)
Ø (disambiguation)
Dotted circle – Non-significant typographic character (U+25CC ◌ DOTTED CIRCLE)

Topics referred to by the same term

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