Troubleshooting Code for Sets: \mathbb{N}

[Bachelier]

I searched for this but couldn't find a sol.

when entering the code for sets i.e.

\mathbb{N}

I get this error message:

! Undefined control sequence. <recently read> \mathbb
l.32 $\mathbb{N}$
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.​

 

[Bachelier]

BTW I have all packages installed via "MikTex"

 

[jhae2.718]

Did you include the amsfonts package in your preamble?

\usepackage{amsfonts}

 

[Bachelier]

Did you include the amsfonts package in your preamble?

\usepackage{amsfonts}

Cool...thanks

 

[alphy]

It seems like there may be a problem with the code you are using for sets. The error message indicates that the control sequence \mathbb is not defined. This could be due to a misspelling or a missing package. I suggest checking the code and ensuring that it is correctly spelled and that all necessary packages are included. You may also want to consult online resources or seek help from a colleague or mentor if you continue to encounter difficulties.