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From Wiktionary, the free dictionary
See also:Appendix:Variations of "z"

U+2124,ℤ
DOUBLE-STRUCK CAPITAL Z

[U+2123]
Letterlike Symbols
[U+2125]

𝐙U+1D419,𝐙
MATHEMATICAL BOLD CAPITAL Z
𝐘
[U+1D418]
Mathematical Alphanumeric Symbols𝐚
[U+1D41A]

Translingual

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Alternative forms

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Etymology

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From𝐙, from abbreviation ofGermanZahlen(numbers). The usage ofblackboard bold dates to the 1960s.

Symbol

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  1. (mathematics)Alternative form of𝐙, theset ofintegers
  2. (algebra, topology, order theory) The set of integers with some usualstructure.
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