  We obtain conditions guaranteeing that weak solutions of the differential
inequality $$
  \sum_{|\alpha| = m}
  \partial^\alpha
  a_\alpha (x, u)
  \ge
  f (x)
  g (|u|)
  \quad
  \mbox{in } \Omega \setminus S, $$ has a removable singular set $S \subset
\Omega$, where $\Omega$ is a bounded domain and $a_\alpha$, $f$, and $g$ are
some functions.
