U+2115.svg
U+2115, ℕ
DOUBLE-STRUCK CAPITAL N

[U+2114]
Letterlike Symbols
[U+2116]

TranslingualEdit

EtymologyEdit

The capital "N" is used this way in Formulario mathematico (1894) by Giuseppe Peano. The usage of blackboard bold dates to the 1960s.

SymbolEdit

  1. (mathematics) The set of natural numbers, which may either include zero or not.

Derived termsEdit