defined-piecewise has no array

I see 
<img width="619" alt="Screenshot 2022-10-25 at 07 04 37" src="https://user-images.githubusercontent.com/4037538/197687153-ad75b75a-e522-48ed-a338-8928e29acd80.png">
in `smglom/mv/source/mod/piecewise.en.tex` The array stuff seems to be missing. 
