A minimal example in attachment

Le dim. 31 mars 2019 à 13:43, Thomas Bucaioni <thomas.bucaioni@gmail.com> a écrit :
This breaks the indentation too :

\newcommand{\intervalleof}[2]{
  {\left.\vphantom{#1#2}\right]}
           {#1}
           \mathpunct{};\mathpunct{}
                     {#2}
                     {\left.\vphantom{#1#2}\right]}
                       }


Le dim. 31 mars 2019 à 12:16, Thomas Bucaioni <thomas.bucaioni@gmail.com> a écrit :
By the way, \mathbb{R}^{[0,\infty)} breaks the indentation too on emacs 25. It's the probabilists notation... With \mathopen and \mathclose, it's fixed :
\mathbb{R}^{\mathopen{[}0,\infty\mathclose{)}}

How do pass to emacs26, apt-get install emacs26 answers 'not found' ?

Le sam. 30 mars 2019 à 19:31, Thomas Bucaioni <thomas.bucaioni@gmail.com> a écrit :

Le mer. 27 mars 2019 à 13:27, Glenn Morris <rgm@gnu.org> a écrit :
Thomas Bucaioni wrote:

> When pressing the TAB key, the indentation doesn't happen. Even, the
> text is translated as in a Word or LibreOffice document.

Please give a minimal complete example starting from emacs -Q.

> In GNU Emacs 24.5.1 (i686-pc-linux-gnu, GTK+ Version 3.22.11)

Please try the current release (26.1 at time of writing).