例句與造句

1. We claim \ operatorname { gl . dim } R = 0 if it is finite . ( This would imply that " R " is a semisimple local ring; i . e ., a field . ) If that is not the case, then there is some finite module M with 0 and thus in fact we can find " M " with \ operatorname { pd } _ R M = 1.
2. It's difficult to find finite module in a sentence. 用finite module造句挺難的