# How to write this symbol in Mathjax?

How to write this symbol in Mathjax?

I'm already familiar with \Bbb{N} code but prefer the above symbol!
Is it possible to depict it using Mathjax?

• Blackboard Bold isn't bad enough, you want to go back to Typewriter Bold? Jun 17 '16 at 5:28
• Oh, the things we did before TeX: $\mathbb{N,R,Z}$ were not too hard. How did you do $\mathbb Q$? Jun 17 '16 at 12:43
• @GEdgar Is the correct answer (Q? Jun 19 '16 at 4:38
• What I saw back then was Q backspace I, so that the I comes out in the middle of the Q. Like this $\;\mathrm{Q\!\!\!I}$ ... Not much like $\mathbb Q$. Jun 19 '16 at 12:16

## 1 Answer

Typing $\mathrm{I}\!\mathrm{N}$ yields $\mathrm{I}\!\mathrm{N}$.

• Thank you so much Jun 17 '16 at 4:05
• I'd recommend against using this to typeset a "bold" N. This could lead to varied confusion.
– quid Mod
Jun 17 '16 at 11:24