Symbols:I/Integers

Set of Integers

$\Bbb I$

Rarely used instead of $\Z$ for the set of integers:

$\Bbb I = \set {\ldots, -3, -2, -1, 0, 1, 2, 3, \ldots}$.

Its $\LaTeX$ code is \Bbb I  or \mathbb I.

Sources

• 1989: Ephraim J. Borowski and Jonathan M. Borwein: Dictionary of Mathematics ... (previous) ... (next): $\Bbb I$