PPInstances.lean:25:9-25:22: warning: declaration uses `sorry`
@Module R E _ _ : Type
@Module R E (_ : Semiring R) (_ : AddCommMonoid E) : Type
@Module R E (@Ring.toSemiring R R.Ring) (@SemiNormedGroup.toAddCommMonoid E instSNG) : Type
@Module R E (@Ring.toSemiring R (R.Ring : Ring R) : Semiring R)
  (@SemiNormedGroup.toAddCommMonoid E (instSNG : SemiNormedGroup E) : AddCommMonoid E) : Type