Remark
Consider X3 - X
Z/6Z[X].
It has more than 3 zeros in Z/6Z.
Apparently, for the lemma to hold it is essential that the coefficient ring is a domain.
Remark
Consider X3 - X
Z/6Z[X].
It has more than 3 zeros in Z/6Z.
Apparently, for the lemma to hold it is essential that the coefficient ring is a domain.