I've already tried to follow the answer here: How to change the title of ToC?
by using \renewcommand{\contentsname}{Whatever}
However, it does not seem to work with LyX, neither in the preamble nor as ERT. The package being used is babel.
Minimum working example of .lyx file:
\pagenumbering{roman}
\renewcommand{\chaptername}{}
\renewcommand{\thechapter}{\arabic{chapter}}
\renewcommand{\contentsname}{Innholdsfortegnelse}
- Innledning
\pagenumbering{arabic}
Heisann



LyXto.texexport of the minimal code that shows this feature – Feb 14 '16 at 12:06