Notation
Zero vector spaces and zero modules are usually denoted by 0 (instead of {0}). This is always the case when they occur in an exact sequence.
Read more about this topic: Zero Object (algebra)
Notation
Zero vector spaces and zero modules are usually denoted by 0 (instead of {0}). This is always the case when they occur in an exact sequence.
Read more about this topic: Zero Object (algebra)