Text Formatting ⇒ Problem with ifthenelse or ifmmode

[artemff]

Why such simple example generate error?

Code: Select all

\documentclass [a4paper, 12pt, oneside]{scrartcl}
\usepackage [cp1251] {inputenc}
\usepackage [english, russian] {babel}
\usepackage{indentfirst}
\usepackage{misccorr}
\usepackage{amsmath}
\usepackage{ifthen}
\begin{document}
$\ifthenelse{\ifmmode}{\text{В}}{В}$
\end{document}

[artemff]

I have solved problem.

[localghost]

Then please be so kind and post this solution here.


Best regards
Thorsten