Errata on "Recoding Lie Algebraic Subshifts"

• The comment "Note that the previous problem includes all vector shifts over all f.g. groups also in the general sense of internal vector spaces, since vector spaces are a shallow variety." makes no sense, and was presumably written for a previous version of Problem 14 which talked about general cellwise Lie algebraic subshifts. I do not know/remember why we dropped this generality in the end, non-full vector shifts are very interesting even on groups like \( \mathbb{Z}^2 \).