摘要
Assume that B is the variety of bands, and the identities of V∈l（B） involve n variables （n≥ 2）. In this paper, we show that V is Dn-1-testable and is not ：Dn-2- testable.
Assume that B is the variety of bands, and the identities of V∈l（B） involve n variables （n≥ 2）. In this paper, we show that V is Dn-1-testable and is not ：Dn-2- testable.
